.github/workflows/publish.yml

@@ -3,7 +3,7 @@ name: Build and Publish
 on:
   push:
     tags:
-      - 'v*'
+    - 'v*'
 
 permissions:
   contents: write
@@ -22,19 +22,19 @@ jobs:
         dotnet-version: 10.0.x
 
     - name: Restore
-      run: dotnet restore Splitter-UI/Splitter-UI.csproj -r win-x64
+      run: dotnet restore -r win-x64
 
-    - name: Get Version
+    - name: 'Get Version'
       id: version
       uses: battila7/get-version-action@v2
 
     - name: Publish Release
-      run: dotnet publish Splitter-UI/Splitter-UI.csproj -c Release -r win-x64 /p:Version=${{ steps.version.outputs.version-without-v }} /p:BuildNumber=${{ github.run_number }} /p:SourceRevisionId=${{ github.sha }}
+      run: dotnet publish splitter-cli/splitter.csproj -c Release -r win-x64 /p:Version=${{ steps.version.outputs.version-without-v }} /p:BuildNumber=${{ github.run_number }} /p:SourceRevisionId=${{ github.sha }}
 
     - name: Create ZIP
       shell: pwsh
       run: |
-        $publish = "Splitter-UI/bin/Release/net10.0/win-x64/publish"
+        $publish = "splitter-cli/bin/Release/net10.0/win-x64/publish"
         $version = "${{ steps.version.outputs.version-without-v }}"
         $zip = "splitter-win-x64-$version.zip"
 
@@ -51,3 +51,5 @@ jobs:
         files: splitter-win-x64-${{ steps.version.outputs.version-without-v }}.zip
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+

AGENTS.md

@@ -1,19 +0,0 @@
-You are c# programmer. I'm senior c# programmer with 30+ years of experience. 
-Do not be overconfident about your answers - they are 70% incorrect. 
-Do not say "final solution". Do not start every reply with my name.
-Do not use emoji or non-ascii symbols. Do not explain "why it work".
-
-I have C#. .NET 10 Avalonia 12 UI for ffmpeg/OpenCV video app. All packages are of very latest versions.
-
-Use namespace splitter for splitter-cli and Splitter_UI for Splitter-UI.
-
-Splitter pipeline is:
-
-  * FFProbe extracting all video meta to VideoInfo
-  * FFMpeg used to decode video frames into OpenCVSharp.Mat
-  * One of detectors used:
-    - For face detection: [opencv_zoo/models/face_detection_yunet at main opencv/opencv_zoo](https://github.com/opencv/opencv_zoo/tree/main/models/face_detection_yunet)
-    - For body detection: [THU-MIG/yolov10: YOLOv10: Real-Time End-to-End Object Detection [NeurIPS 2024]](https://github.com/THU-MIG/yolov10/tree/main)
-  * Camera control aplied (CameraControl class)
-  * Final video frames are encoded back to video file using FFMpeg
-

README.md

@@ -1,50 +1,212 @@
 # Splitter
 
-This application was built to help me with maintaining my YouTube channel - [UnclShura](https://www.youtube.com/@UnclShura).
+Splitter is a high‑performance command line tool for cutting one or more video files into equal or fixed‑length segments using multi‑threaded FFmpeg execution.
+It supports batch input, flexible duration formats, rotation, smart face/body‑aware cropping, ETA and speed reporting, and both rich and plain‑text terminal output.
 
-Splitter is a high-performance command line tool for cutting one or more video files into equal or 
+![Splitter](splitter.png)
-fixed‑length segments using multi‑threaded FFmpeg execution. It supports batch input, flexible 
-duration formats, rotation, smart face/body‑aware cropping, ETA and speed reporting, with nice GUI 
-or both rich and plain-text terminal output.
-
-The intended primary use case is for content creators who need to split large video files into smaller 
-segments for platforms like TikTok, Instagram Reels, YouTube Shorts, or similar. The smart 
-cropping feature allows the tool to automatically detect and keep faces or bodies in the frame 
-when splitting, ensuring that important content is not cut off.
-
-Splitter uses cutting-edge body-detection CV models to analyze the video and determine optimal 
-cropping regions for each segment. Smooth tracking and gravitation bias ensure that the cropping remains
-stable and focused on the subject without excessive jitter or erratic movements. 
-The tool can also correct for rotation metadata to ensure proper orientation in the output segments.
-
-Splitter uses FFmpeg for the actual splitting and encoding, with multi-threading to maximize performance.
 
 ## Features
 
-- Human face or body detection with smart cropping
+- Multi‑threaded FFmpeg splitting for maximum throughput
-- Multi-threaded FFmpeg splitting for maximum throughput
 - Equal or fixed‑length segmentation
 - Batch input via file masks or list files
 - Smart cropping with face/body tracking
 - Rotation correction
 - ETA, speed, and progress display
 - FFmpeg passthrough for advanced control
-- [Potentially] Cross-platform (.NET 10)
+- [Potentially] Cross‑platform (.NET 10)
-
-## Screenshots
-
-### Command line interface
-![Splitter](splitter-cli/splitter.png)
-### Graphical user interface
-![Splitter UI](Splitter-UI/screenshot.png)
 
 ## Requirements
 
 - FFmpeg and FFprobe available in system PATH
 - .NET 10 Runtime or newer
 
-## More info
+If you want to update model:
 
-[Command line tool](splitter-cli/README.md)
+- For face detection: [opencv_zoo/models/face_detection_yunet at main · opencv/opencv_zoo](https://github.com/opencv/opencv_zoo/tree/main/models/face_detection_yunet)
+- For body detection: [yolov8s.pt · Ultralytics/YOLOv8 at main](https://huggingface.co/Ultralytics/YOLOv8/blob/main/yolov8s.pt)
+
+To convert models from PyTorch to ONNX, you can use the following command:
+
+```python
+from ultralytics import YOLO
+
+model = YOLO("yolov8x.pt")
+model.export(format="onnx", opset=12, half=False)   # FP32 ONNX
+```
+
+## How It Works
+
+1. Reads total duration using ffprobe
+2. Parses target duration
+3. Computes number of segments
+4. If not forced, equalizes segment lengths
+5. Runs multiple FFmpeg processes in parallel
+6. Applies rotation, crop, and tracking if enabled
+7. Displays progress, ETA, and speed
+
+## Face Tracking vs Body Tracking
+
+Face tracking and body tracking serve different purposes, and Splitter supports both because each
+excels in different recording environments. When converting horizontal footage into vertical clips,
+the choice of detector determines how stable, reliable, and natural the automated camera motion will be.
+
+![Face vs Body Tracking](tracking.png)
+
+### Face Tracking Using UltraFace 320
+
+Splitter uses the UltraFace 320 ONNX model to perform lightweight, real‑time face detection on each
+frame of the input video. The detector produces bounding boxes for visible faces, and the tracking
+system maintains a stable, smoothed target region across time. This is achieved by combining per‑frame
+detections with temporal smoothing (EMA), dropout tolerance, and camera easing. The result is a
+continuous, stable crop window that follows the performer even when the face is partially occluded,
+briefly lost, or moving rapidly.
+
+During segmentation, the crop window is recalculated for every frame, ensuring that each output
+segment inherits the same smooth camera motion. This makes the vertical clips appear as if they
+were recorded with a dedicated portrait‑oriented camera operator. The UltraFace 320 model is
+fast enough to run alongside multi‑threaded FFmpeg splitting without becoming a bottleneck,
+making it suitable for long recordings and batch processing.
+
+### Benefits of Full‑Body Detection Using YOLOv8s for Live Gig Recordings
+
+When recording concerts or live gigs, performers often move unpredictably, turn away from the
+camera, or become partially obscured by lighting, instruments, or stage effects.
+Full‑body detection using a YOLOv8s ONNX model provides a more reliable tracking anchor than
+face detection alone. Because YOLOv8s can detect the entire human silhouette, the tracker
+maintains stable framing even when the face is not visible, when the performer is far from
+the camera, or when stage lighting makes facial features hard to detect. This produces vertical
+clips that feel intentional and professionally framed, with fewer sudden jumps or lost‑tracking
+moments. For creators converting horizontal gig footage into short vertical clips for YouTube
+Shorts or TikTok, body‑based tracking significantly improves consistency, reduces manual editing,
+and preserves the energy and motion of the performance.
+
+### Automated Camera Control
+
+Splitter includes an automated camera control system that simulates the behavior of a virtual
+camera operator when generating vertical crops from horizontal footage. The goal is to maintain
+smooth, intentional framing around the tracked subject, even when detections are noisy, intermittent,
+or temporarily lost.
+
+The controller receives object detections (face or body) and converts them into a stable crop
+window using a combination of Kalman filtering, exponential smoothing, dropout tolerance,
+and a three‑state tracking model. The Kalman filter provides predictive motion smoothing,
+while the EMA factor blends the predicted position with the previous camera center to avoid jitter.
+The camera easing value controls how quickly the virtual camera follows the subject, producing
+natural‑looking motion rather than abrupt jumps.
+
+When detections disappear, the controller enters one of two fallback modes. In LostFreeze mode,
+the camera holds its last known position for a configurable number of frames, preventing sudden
+jumps during brief occlusions. If the subject remains lost beyond that threshold, the controller
+transitions to LostDrift mode, slowly drifting the camera back toward a neutral center position.
+This prevents the crop from drifting off‑screen and ensures that the output remains usable even
+when tracking fails. All positions are clamped to valid bounds, guaranteeing that the crop window
+never leaves the video frame.
+
+### Automatic rotation detection
+
+The rotation‑estimation method is based on analyzing the distribution of gradient orientations within 
+a video frame. After converting the frame to grayscale, the algorithm computes horizontal and vertical 
+image gradients using Sobel operators and derives per‑pixel gradient magnitudes and orientations. 
+These orientations are folded into the range [0, 180) and accumulated into a fixed‑size, 
+magnitude‑weighted histogram. The histogram represents the structural edge distribution of the frame, 
+independent of brightness fluctuations or local lighting artifacts. By comparing the total gradient
+energy concentrated near 0 degrees (vertical edges) with the energy near 90 degrees (horizontal edges), 
+the method determines whether the frame is more consistent with an upright or sideways orientation.
+
+This approach is designed for environments where brightness‑based cues are unreliable, such as
+live concerts with strobe lights, LED walls, haze, and crowd movement. It relies solely on geometric 
+edge structure, which remains stable even under extreme lighting variation. The implementation is 
+optimized for high‑throughput video processing: all intermediate Mats, buffers, and histograms are 
+preallocated, and pixel data is accessed directly through pointers to avoid per‑frame memory 
+allocation. The method is intentionally biased toward the upright orientation, returning a sideways
+classification only when the horizontal‑edge energy significantly exceeds the vertical‑edge energy.
+
+## Usage
+
+```
+splitter [<input.mp4> ...] [options] [--] <ffmpeg passthrough>
+```
+
+Inputs may be provided directly, via `--file=...`, or using file masks such as `videos/*.mp4`.
+
+
+## Options
+
+Below is a clean, ASCII‑only **options table** version of your content.
+All option names are preserved exactly, and descriptions are consolidated for clarity.
+
+---
+
+## Options
+
+| Option | Description |
+|--------|-------------|
+| **--out=<folder>** | Output folder for generated segments. Default: `<input folder>/Splitter`. |
+| **--file=<path>** | Input file list or file mask. If omitted, the first non‑option argument is used as input. Examples: `--file=videos/*.mp4`, `--file=file_list.txt`. |
+| **--mask=<pattern>** | Custom output filename pattern. Default: `[NAME]_seg[NN].[EXT]`. Supports `[NAME]`, `[N]`, `[NN]`, `[NNN]`, `[NNNN]`, `[EXT]`. Example: `--mask="[NAME]_[NNNN].mp4"`. |
+| **--duration=<value>** | Override target segment duration. Formats: `Ns`, `NmMs`, `N`. Examples: `--duration=90s`, `--duration=2m30s`, `--duration=45`. Without `--force`: max 58 seconds, equalized across segments. |
+| **--force** | Use the duration exactly as provided. Last segment may be shorter. |
+| **--rotate=<degrees>** | Rotate video by 90, 180, or 270 degrees. Useful for correcting orientation metadata. |
+| **--rotate-auto** | Use automatic rotation detection. |
+| **--estimate** | Print calculated segment information and exit. No splitting is performed. |
+| **--crop[=<w:h>]** | Crop video to a target width and height with face/body tracking. Default: 607x1080. Ideal for Shorts, TikTok, Reels. |
+| **--detect=<name>** | Object detector for tracking. Values: `face` (UltraFace), `body` (YoloOnnx, default), `none` (center crop). |
+| **--gravitate=<x:y>** | Bias the crop window toward a normalized point in the frame. Example: `--gravitate=0.2:0.5`. |
+| **--text** | Use plain‑text logging instead of the rich terminal UI. |
+| **--single-thread** | Disable parallel FFmpeg execution. Useful for debugging or low‑resource systems. |
+| **--debug** | Show debug overlay during tracking. No cropping performed, but crop region shown. |
+| **-p:<name>=<value>** | Set custom parameters for the object detector. Example: `-p:confidence=0.5`. Defaults: DropoutToleranceFrames=20, EmaFactor=0.65, CameraEasing=0.03, LostFreezeFrames=60. |
+
+## FFmpeg Passthrough
+
+Anything after `--` is passed directly to FFmpeg.
+
+Example:
+```
+splitter video.mp4 --force --duration=45 -- -an -sn
+```
+
+## Input and Output Behavior
+
+- `input.mp4` may be a file mask (`videos/*.mp4`)
+- Output filenames follow the `--mask` pattern
+- Output folder defaults to `<input folder>/Splitter` unless overridden
+
+## Examples
+
+Split into equal 60‑second segments:
+```
+splitter vertical-video.mp4
+```
+
+Split into equal 90‑second segments:
+```
+splitter vertical-video.mp4 --duration=90s
+```
+
+Custom naming:
+```
+splitter vertical-video.mp4 --duration=2m30s --mask="[NAME]_[NNNN].mp4"
+```
+
+Estimate only:
+```
+splitter vertical-video.mp4 --estimate
+```
+
+Fixed 45‑second segments with passthrough:
+```
+splitter vertical-video.mp4 --force --duration=45 -- -an -sn
+```
+
+Smart crop for Shorts:
+```
+splitter horizontal-video.mp4 --out=Cropped/ --crop
+```
+
+Batch processing with body tracking:
+```
+splitter --file=file_names.txt --out=Cropped/ --crop --detect=body
+```
 
-[GUI tool](Splitter-UI/README.md)

Splitter-UI/App.axaml

@@ -1,23 +0,0 @@
-<Application xmlns="https://github.com/avaloniaui"
-             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-             x:Class="Splitter_UI.App"
-             xmlns:local="using:Splitter_UI"
-             xmlns:cnv="using:Splitter_UI.Converters"
-             RequestedThemeVariant="Default">
-             <!-- "Default" ThemeVariant follows system theme variant. "Dark" or "Light" are other available options. -->
-
-    <Application.DataTemplates>
-        <local:ViewLocator/>
-    </Application.DataTemplates>
-  
-    <Application.Resources>
-        <cnv:ActionToIconConverter x:Key="ActionToIconConverter"/>
-         <FontFamily x:Key="FontAwesome">avares://Splitter-UI/Assets/Fonts/Font Awesome 7 Free-Solid-900.otf#Font Awesome 7 Free Solid</FontFamily>
-    </Application.Resources>
-
-    <Application.Styles>
-        <FluentTheme/>
-        <StyleInclude Source="avares://Avalonia.Controls.DataGrid/Themes/Fluent.xaml"/>
-    </Application.Styles>
-
-</Application>

Splitter-UI/App.axaml.cs

@@ -1,39 +0,0 @@
-using Avalonia;
-using Avalonia.Controls.ApplicationLifetimes;
-using Avalonia.Markup.Xaml;
-using Microsoft.Extensions.DependencyInjection;
-using Splitter_UI.Views;
-
-namespace Splitter_UI;
-
-public partial class App : Application
-{
-    private readonly ServiceProvider _provider = null!;
-
-    public App() { }
-
-    public App(ServiceProvider provider)
-    {
-        _provider = provider;
-    }
-
-    public override void Initialize()
-    {
-        AvaloniaXamlLoader.Load(this);
-    }
-
-    public override void OnFrameworkInitializationCompleted()
-    {
-        if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
-        {
-            var vm = _provider.GetRequiredService<MainViewModel>();
-
-            desktop.MainWindow = new MainWindow
-            {
-                DataContext = vm
-            };
-        }
-
-        base.OnFrameworkInitializationCompleted();
-    }
-}

Splitter-UI/Assets/splitter.svg

@@ -1,100 +0,0 @@
-<svg width="256" height="256" viewBox="0 0 256 256" xmlns="http://www.w3.org/2000/svg">
-
-  <!-- Background -->
-  <defs>
-    <linearGradient id="bgGrad" x1="0" y1="0" x2="1" y2="1">
-      <stop offset="0%" stop-color="#111827"/>
-      <stop offset="100%" stop-color="#020617"/>
-    </linearGradient>
-
-    <linearGradient id="accentGrad" x1="0" y1="0" x2="1" y2="1">
-      <stop offset="0%" stop-color="#22C55E"/>
-      <stop offset="100%" stop-color="#0EA5E9"/>
-    </linearGradient>
-
-    <linearGradient id="videoGrad" x1="0" y1="0" x2="1" y2="1">
-      <stop offset="0%" stop-color="#F97316"/>
-      <stop offset="100%" stop-color="#EC4899"/>
-    </linearGradient>
-
-    <linearGradient id="cropGrad" x1="0" y1="0" x2="1" y2="1">
-      <stop offset="0%" stop-color="#38BDF8"/>
-      <stop offset="100%" stop-color="#6366F1"/>
-    </linearGradient>
-  </defs>
-
-  <rect x="0" y="0" width="256" height="256" rx="56" fill="url(#bgGrad)" />
-
-  <!-- Split timeline bar -->
-  <g transform="translate(32,188)">
-    <rect x="0" y="-10" width="192" height="20" rx="10" fill="#020617" />
-    <rect x="0" y="-10" width="192" height="20" rx="10" fill="url(#accentGrad)" opacity="0.18" />
-
-    <!-- Segment markers -->
-    <rect x="32"  y="-14" width="3" height="28" rx="1.5" fill="#FACC15" />
-    <rect x="80"  y="-14" width="3" height="28" rx="1.5" fill="#FACC15" />
-    <rect x="128" y="-14" width="3" height="28" rx="1.5" fill="#FACC15" />
-    <rect x="176" y="-14" width="3" height="28" rx="1.5" fill="#FACC15" />
-  </g>
-
-  <!-- Video tile (left) -->
-  <g transform="translate(26,52)">
-    <rect x="0" y="0" width="96" height="72" rx="12" fill="#020617" />
-    <rect x="0" y="0" width="96" height="72" rx="12" fill="url(#videoGrad)" opacity="0.9" />
-
-    <!-- Play triangle -->
-    <polygon points="38,22 64,36 38,50" fill="#F9FAFB" opacity="0.9" />
-
-    <!-- Small split indicator -->
-    <rect x="12" y="60" width="72" height="4" rx="2" fill="#111827" opacity="0.7" />
-    <rect x="36" y="58" width="2" height="8" rx="1" fill="#FACC15" />
-    <rect x="60" y="58" width="2" height="8" rx="1" fill="#FACC15" />
-  </g>
-
-  <!-- Video tile (right, shifted to suggest batch / multi-thread) -->
-  <g transform="translate(134,40)">
-    <rect x="0" y="0" width="96" height="72" rx="12" fill="#020617" />
-    <rect x="0" y="0" width="96" height="72" rx="12" fill="url(#videoGrad)" opacity="0.75" />
-
-    <!-- Play triangle -->
-    <polygon points="38,22 64,36 38,50" fill="#F9FAFB" opacity="0.85" />
-
-    <!-- Small split indicator -->
-    <rect x="12" y="60" width="72" height="4" rx="2" fill="#111827" opacity="0.7" />
-    <rect x="30" y="58" width="2" height="8" rx="1" fill="#FACC15" />
-    <rect x="54" y="58" width="2" height="8" rx="1" fill="#FACC15" />
-    <rect x="78" y="58" width="2" height="8" rx="1" fill="#FACC15" />
-  </g>
-
-  <!-- Smart crop frame with body/face hint -->
-  <g transform="translate(76,86)">
-    <!-- Outer crop frame -->
-    <rect x="0" y="0" width="104" height="104" rx="18" fill="#020617" opacity="0.9" />
-    <rect x="0" y="0" width="104" height="104" rx="18" fill="url(#cropGrad)" opacity="0.25" />
-
-    <!-- Corner crop brackets -->
-    <path d="M10 30 V14 A4 4 0 0 1 14 10 H30" stroke="#E5E7EB" stroke-width="3" stroke-linecap="round" fill="none" />
-    <path d="M74 10 H90 A4 4 0 0 1 94 14 V30" stroke="#E5E7EB" stroke-width="3" stroke-linecap="round" fill="none" />
-    <path d="M10 74 V90 A4 4 0 0 0 14 94 H30" stroke="#E5E7EB" stroke-width="3" stroke-linecap="round" fill="none" />
-    <path d="M74 94 H90 A4 4 0 0 0 94 90 V74" stroke="#E5E7EB" stroke-width="3" stroke-linecap="round" fill="none" />
-
-    <!-- Body / face glyph -->
-    <!-- Head -->
-    <circle cx="52" cy="36" r="11" fill="#F9FAFB" />
-    <!-- Torso -->
-    <path d="M32 72 C34 56 42 48 52 48 C62 48 70 56 72 72 Z"
-          fill="#F9FAFB" />
-
-    <!-- Gravitation / tracking bias arc -->
-    <path d="M30 82 A24 24 0 0 0 74 82"
-          stroke="url(#accentGrad)" stroke-width="3" stroke-linecap="round" fill="none" opacity="0.9" />
-  </g>
-
-  <!-- Subtle multi-thread / performance hint (three vertical bars) -->
-  <g transform="translate(210,188)">
-    <rect x="-10" y="-18" width="4" height="24" rx="2" fill="#22C55E" opacity="0.9" />
-    <rect x="-2"  y="-22" width="4" height="28" rx="2" fill="#4ADE80" opacity="0.9" />
-    <rect x="6"   y="-16" width="4" height="22" rx="2" fill="#16A34A" opacity="0.9" />
-  </g>
-
-</svg>

Splitter-UI/Controls/PreviewSlider.cs

@@ -1,298 +0,0 @@
-using Avalonia;
-using Avalonia.Controls;
-using Avalonia.Input;
-using Avalonia.Interactivity;
-using Avalonia.Media;
-using Point = Avalonia.Point;
-
-namespace Splitter_UI.Controls
-{
-    public sealed class PreviewSlider : Control
-    {
-        public static readonly StyledProperty<double> MinimumProperty =
-            AvaloniaProperty.Register<PreviewSlider, double>(nameof(Minimum), 0d);
-
-        public static readonly StyledProperty<double> MaximumProperty =
-            AvaloniaProperty.Register<PreviewSlider, double>(nameof(Maximum), 100d);
-
-        public static readonly StyledProperty<double> ValueProperty =
-            AvaloniaProperty.Register<PreviewSlider, double>(
-                nameof(Value), 0d,
-                coerce: (o, v) =>
-                {
-                    var slider = (PreviewSlider)o;
-                    if (v < slider.Minimum) return slider.Minimum;
-                    if (v > slider.Maximum) return slider.Maximum;
-                    return v;
-                });
-
-        public static readonly StyledProperty<double> SegmentDurationProperty =
-            AvaloniaProperty.Register<PreviewSlider, double>(nameof(SegmentDuration), 1d);
-
-        public static readonly StyledProperty<double> TrackThicknessProperty =
-            AvaloniaProperty.Register<PreviewSlider, double>(nameof(TrackThickness), 4d);
-
-        public static readonly StyledProperty<double> ThumbRadiusProperty =
-            AvaloniaProperty.Register<PreviewSlider, double>(nameof(ThumbRadius), 8d);
-
-        public static readonly StyledProperty<IBrush> TrackBrushProperty =
-            AvaloniaProperty.Register<PreviewSlider, IBrush>(nameof(TrackBrush), Brushes.Gray);
-
-        public static readonly StyledProperty<IBrush> TrackFillBrushProperty =
-            AvaloniaProperty.Register<PreviewSlider, IBrush>(nameof(TrackFillBrush), Brushes.DodgerBlue);
-
-        public static readonly StyledProperty<IBrush> ThumbBrushProperty =
-            AvaloniaProperty.Register<PreviewSlider, IBrush>(nameof(ThumbBrush), Brushes.White);
-
-        public static readonly StyledProperty<IBrush> ThumbBorderBrushProperty =
-            AvaloniaProperty.Register<PreviewSlider, IBrush>(nameof(ThumbBorderBrush), Brushes.DodgerBlue);
-
-        public static readonly StyledProperty<double> ThumbBorderThicknessProperty =
-            AvaloniaProperty.Register<PreviewSlider, double>(nameof(ThumbBorderThickness), 1d);
-
-        public static readonly StyledProperty<IBrush> SegmentLineBrushProperty =
-            AvaloniaProperty.Register<PreviewSlider, IBrush>(nameof(SegmentLineBrush), Brushes.LightSalmon);
-
-        public static readonly StyledProperty<double> SegmentLineThicknessProperty =
-            AvaloniaProperty.Register<PreviewSlider, double>(nameof(SegmentLineThickness), 1d);
-
-        private bool _isDragging;
-
-        public double Minimum
-        {
-            get => GetValue(MinimumProperty);
-            set => SetValue(MinimumProperty, value);
-        }
-
-        public double Maximum
-        {
-            get => GetValue(MaximumProperty);
-            set => SetValue(MaximumProperty, value);
-        }
-
-        public double Value
-        {
-            get => GetValue(ValueProperty);
-            set => SetValue(ValueProperty, value);
-        }
-
-        public double SegmentDuration
-        {
-            get => GetValue(SegmentDurationProperty);
-            set => SetValue(SegmentDurationProperty, value);
-        }
-
-        public double TrackThickness
-        {
-            get => GetValue(TrackThicknessProperty);
-            set => SetValue(TrackThicknessProperty, value);
-        }
-
-        public double ThumbRadius
-        {
-            get => GetValue(ThumbRadiusProperty);
-            set => SetValue(ThumbRadiusProperty, value);
-        }
-
-        public IBrush TrackBrush
-        {
-            get => GetValue(TrackBrushProperty);
-            set => SetValue(TrackBrushProperty, value);
-        }
-
-        public IBrush TrackFillBrush
-        {
-            get => GetValue(TrackFillBrushProperty);
-            set => SetValue(TrackFillBrushProperty, value);
-        }
-
-        public IBrush ThumbBrush
-        {
-            get => GetValue(ThumbBrushProperty);
-            set => SetValue(ThumbBrushProperty, value);
-        }
-
-        public IBrush ThumbBorderBrush
-        {
-            get => GetValue(ThumbBorderBrushProperty);
-            set => SetValue(ThumbBorderBrushProperty, value);
-        }
-
-        public double ThumbBorderThickness
-        {
-            get => GetValue(ThumbBorderThicknessProperty);
-            set => SetValue(ThumbBorderThicknessProperty, value);
-        }
-
-        public IBrush SegmentLineBrush
-        {
-            get => GetValue(SegmentLineBrushProperty);
-            set => SetValue(SegmentLineBrushProperty, value);
-        }
-
-        public double SegmentLineThickness
-        {
-            get => GetValue(SegmentLineThicknessProperty);
-            set => SetValue(SegmentLineThicknessProperty, value);
-        }
-
-        static PreviewSlider()
-        {
-            FocusableProperty.OverrideDefaultValue<PreviewSlider>(true);
-
-            ValueProperty.Changed.AddClassHandler<PreviewSlider>((s, _) => s.InvalidateVisual());
-            MinimumProperty.Changed.AddClassHandler<PreviewSlider>((s, _) => s.InvalidateVisual());
-            MaximumProperty.Changed.AddClassHandler<PreviewSlider>((s, _) => s.InvalidateVisual());
-            SegmentDurationProperty.Changed.AddClassHandler<PreviewSlider>((s, _) => s.InvalidateVisual());
-        }
-
-
-        public PreviewSlider()
-        {
-            ClipToBounds = true;
-
-            AddHandler(PointerPressedEvent, OnPointerPressed, RoutingStrategies.Tunnel);
-            AddHandler(PointerMovedEvent, OnPointerMoved, RoutingStrategies.Tunnel);
-            AddHandler(PointerReleasedEvent, OnPointerReleased, RoutingStrategies.Tunnel);
-            AddHandler(PointerCaptureLostEvent, OnPointerCaptureLost, RoutingStrategies.Tunnel);
-        }
-
-        public override void Render(DrawingContext context)
-        {
-            base.Render(context);
-
-            var bounds = Bounds;
-            if (bounds.Width <= 0 || bounds.Height <= 0)
-                return;
-
-            var centerY = bounds.Height / 2.0;
-            var left = ThumbRadius;
-            var right = bounds.Width - ThumbRadius;
-
-            var trackThickness = TrackThickness;
-            var trackRect = new Rect(left, centerY - trackThickness / 2.0, right - left, trackThickness);
-
-            context.FillRectangle(TrackBrush, trackRect);
-
-            var range = Maximum - Minimum;
-            if (SegmentDuration > 0 && range > 0 && SegmentLineBrush != null && SegmentLineThickness > 0)
-            {
-                var pen = new Pen(SegmentLineBrush, SegmentLineThickness);
-                var totalSegments = (int)Math.Floor(range / SegmentDuration);
-
-                for (var i = 1; i <= totalSegments; i++)
-                {
-                    var segmentValue = Minimum + i * SegmentDuration;
-                    var tSeg = (segmentValue - Minimum) / range;
-                    var xSeg = left + tSeg * (right - left);
-
-                    var p1 = new Point(xSeg, centerY - trackThickness);
-                    var p2 = new Point(xSeg, centerY + trackThickness);
-                    context.DrawLine(pen, p1, p2);
-                }
-            }
-
-            var t = (range <= 0) ? 0.0 : (Value - Minimum) / range;
-            t = Math.Clamp(t, 0.0, 1.0);
-
-            var thumbX = left + t * (right - left);
-
-            var fillRect = new Rect(left, centerY - trackThickness / 2.0, thumbX - left, trackThickness);
-            context.FillRectangle(TrackFillBrush, fillRect);
-
-            var thumbRadius = ThumbRadius;
-            var thumbCenter = new Point(thumbX, centerY);
-
-            var ellipse = new EllipseGeometry(new Rect(
-                thumbCenter.X - thumbRadius,
-                thumbCenter.Y - thumbRadius,
-                thumbRadius * 2,
-                thumbRadius * 2));
-
-            context.DrawGeometry(ThumbBrush, null, ellipse);
-
-            if (ThumbBorderThickness > 0 && ThumbBorderBrush != null)
-            {
-                var pen = new Pen(ThumbBorderBrush, ThumbBorderThickness);
-                context.DrawGeometry(null, pen, ellipse);
-            }
-
-        }
-
-        protected override void OnPointerWheelChanged(PointerWheelEventArgs e)
-        {
-            base.OnPointerWheelChanged(e);
-
-            var delta = e.Delta.Y;
-            if (delta == 0)
-                return;
-
-            var step = (Maximum - Minimum) / 100.0;
-            if (step <= 0)
-                step = 1.0;
-
-            if (delta > 0)
-                Value = Math.Clamp(Value - step, Minimum, Maximum);
-            else
-                Value = Math.Clamp(Value + step, Minimum, Maximum);
-
-            e.Handled = true;
-        }
-
-        private void OnPointerPressed(object? sender, PointerPressedEventArgs e)
-        {
-            if (!IsEnabled)
-                return;
-
-            if (!e.GetCurrentPoint(this).Properties.IsLeftButtonPressed)
-                return;
-
-            e.Pointer.Capture(this);
-            UpdateValueFromPoint(e.GetPosition(this));
-            _isDragging = true;
-            e.Handled = true;
-        }
-
-        private void OnPointerMoved(object? sender, PointerEventArgs e)
-        {
-            if (!_isDragging)
-                return;
-
-            UpdateValueFromPoint(e.GetPosition(this));
-            e.Handled = true;
-        }
-
-        private void OnPointerReleased(object? sender, PointerReleasedEventArgs e)
-        {
-            if (!_isDragging)
-                return;
-
-            _isDragging = false;
-            e.Pointer.Capture(null);
-            e.Handled = true;
-        }
-
-        private void OnPointerCaptureLost(object? sender, PointerCaptureLostEventArgs e)
-        {
-            _isDragging = false;
-        }
-
-        private void UpdateValueFromPoint(Point point)
-        {
-            var bounds = Bounds;
-            var left = ThumbRadius;
-            var right = bounds.Width - ThumbRadius;
-
-            if (right <= left)
-                return;
-
-            var x = Math.Clamp(point.X, left, right);
-            var t = (x - left) / (right - left);
-
-            var newValue = Minimum + t * (Maximum - Minimum);
-            Value = newValue;
-
-            InvalidateVisual();
-        }
-    }
-}

Splitter-UI/Controls/TimelinePreviewSlider.cs

@@ -1,957 +0,0 @@
-using System.Collections.ObjectModel;
-using System.Collections.Specialized;
-using System.ComponentModel;
-using System.Globalization;
-using Avalonia;
-using Avalonia.Controls;
-using Avalonia.Input;
-using Avalonia.Media;
-using Avalonia.Media.Imaging;
-using Avalonia.Threading;
-using Point = Avalonia.Point;
-
-namespace Splitter_UI.Controls;
-
-public class TimelinePreviewSlider : Control, IDisposable
-{
-    // Public properties
-    public static readonly StyledProperty<JobViewModel?> ViewModelProperty =
-            AvaloniaProperty.Register<TimelinePreviewSlider, JobViewModel?>(nameof(ViewModel));
-
-    public JobViewModel? ViewModel
-    {
-        get => GetValue(ViewModelProperty);
-        set => SetValue(ViewModelProperty, value);
-    }
-
-    private double PixelsPerSecond
-    {
-        get
-        {
-            var vm = ViewModel;
-            if (vm == null || vm.DurationSeconds <= 0 || Bounds.Width <= 0)
-                return 10000; // fallback value
-
-            // Full control width maps to full video duration
-            return Bounds.Width / vm.DurationSeconds;
-        }
-    }
-
-    public static readonly StyledProperty<IBrush?> SegmentFillProperty =
-            AvaloniaProperty.Register<TimelinePreviewSlider, IBrush?>(nameof(SegmentFill), Brushes.DimGray);
-
-    public IBrush? SegmentFill
-    {
-        get => GetValue(SegmentFillProperty);
-        set => SetValue(SegmentFillProperty, value);
-    }
-
-    public static readonly StyledProperty<IBrush?> MarkerStrokeProperty =
-            AvaloniaProperty.Register<TimelinePreviewSlider, IBrush?>(nameof(MarkerStroke), Brushes.White);
-
-    public IBrush? MarkerStroke
-    {
-        get => GetValue(MarkerStrokeProperty);
-        set => SetValue(MarkerStrokeProperty, value);
-    }
-
-    // Visual constants
-    private const double _timelineHeight         = 80;
-    private const double _markerLineHeight       = 36;
-    private const double _markerLineWidth        = 2;
-    private const double _markerTriangleSize     = 8;
-    private const double _segmentBarHeight       = 40;
-    private const int    _maxPreviewCacheItems   = 128;
-
-    // Internal state
-    private readonly LruCache<string, Bitmap> _previewCache = new(_maxPreviewCacheItems);
-    private readonly Dictionary<string, CancellationTokenSource> _previewLoadCts = new();
-    private readonly object _cacheLock = new();
-
-    private IDisposable?  _segmentsSubscription;
-    private bool          _isInternalSliderUpdate;
-    private JobViewModel? _currentVm;
-
-    // Interaction state
-    private bool         _isPointerCaptured;
-    private Point        _lastPointerPoint;
-    private DragMode     _dragMode           = DragMode.None;
-    private int          _activeSegmentIndex = -1;
-    private bool         _isSplitModifierActive;
-
-    // Throttle invalidation during drag
-    private DateTime _lastInvalidate = DateTime.MinValue;
-    private readonly TimeSpan _invalidateThrottle = TimeSpan.FromMilliseconds(16); // ~60Hz
-
-    public TimelinePreviewSlider()
-    {
-        Focusable    = true;
-        Height       = _timelineHeight;
-        ClipToBounds = true;
-
-        // Use property change override instead of GetObservable.Subscribe to avoid IObserver compile issues.
-        PointerPressed     += OnPointerPressed;
-        PointerMoved       += OnPointerMoved;
-        PointerReleased    += OnPointerReleased;
-        PointerCaptureLost += OnPointerCaptureLost;
-        KeyDown            += OnKeyDown;
-        KeyUp              += OnKeyUp;
-    }
-
-    // Override to detect ViewModel property changes
-    protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
-    {
-        base.OnPropertyChanged(change);
-
-        if (change.Property == ViewModelProperty)
-        {
-            OnViewModelChanged((JobViewModel?)change.NewValue);
-        }
-    }
-
-    private void OnViewModelChanged(JobViewModel? vm)
-    {
-        UnsubscribeFromViewModel();
-        _previewCache.Clear();
-        CancelAllPreviewLoads();
-
-        if (vm != null)
-        {
-            _segmentsSubscription = SubscribeToSegments(vm.Segments);
-            vm.PropertyChanged += OnVmPropertyChanged;
-        }
-
-        InvalidateVisual();
-    }
-
-
-    private void OnVmPropertyChanged(object? sender, PropertyChangedEventArgs e)
-    {
-        if (e.PropertyName == nameof(JobViewModel.SliderLiveValue))
-        {
-            if (_isInternalSliderUpdate)
-                return;
-
-            InvalidateVisual();
-        }
-    }
-
-    private IDisposable SubscribeToSegments(ObservableCollection<Segment> segments)
-    {
-        NotifyCollectionChangedEventHandler handler = (s, e) =>
-        {
-            Dispatcher.UIThread.Post(() => {
-                InvalidateVisual();
-            }, DispatcherPriority.Background);
-        };
-        segments.CollectionChanged += handler;
-        return Disposable.Create(() => segments.CollectionChanged -= handler);
-    }
-
-    private void UnsubscribeFromViewModel()
-    {
-        if (_currentVm != null)
-            _currentVm.PropertyChanged -= OnVmPropertyChanged;
-
-        _currentVm = null;
-
-        _segmentsSubscription?.Dispose();
-        _segmentsSubscription = null;
-    }
-
-    private void CancelAllPreviewLoads()
-    {
-        lock (_cacheLock)
-        {
-            foreach (var cts in _previewLoadCts.Values)
-            {
-                try { cts.Cancel(); } catch { }
-            }
-            _previewLoadCts.Clear();
-        }
-    }
-
-    public override void Render(DrawingContext dc)
-    {
-        base.Render(dc);
-
-        var vm = ViewModel;
-        var bounds = new Rect(0, 0, Bounds.Width, Bounds.Height);
-
-        // Background
-        dc.FillRectangle(Brushes.Black, bounds);
-
-        DrawContinuousPreviewStrip(dc);
-        DrawGapOverlays(dc);
-        DrawOverlongSegmentOverlays(dc);
-
-        if (vm == null || vm.DurationSeconds <= 0 || vm.Segments.Count == 0)
-        {
-            // draw empty ruler
-            DrawRuler(dc, 0, vm?.DurationSeconds ?? 0);
-            return;
-        }
-
-        // Draw segments and previews
-        for (int i = 0; i < vm.Segments.Count; i++)
-        {
-            var seg = vm.Segments[i];
-            var segRect = SegmentRectFor(seg);
-            if (segRect.Width <= 0) continue;
-
-            // Segment background
-            var segBrush = new Pen(SegmentFill ?? Brushes.DimGray, 1);
-            var segRoundedRect = new Rect(segRect.X, segRect.Y + (Bounds.Height - _segmentBarHeight) / 2, segRect.Width, _segmentBarHeight);
-            var geom = new StreamGeometry();
-            using (var ctx = geom.Open())
-            {
-                ctx.BeginFigure(new Point(segRoundedRect.X, segRoundedRect.Y), true);
-                ctx.LineTo(     new Point(segRoundedRect.X + segRoundedRect.Width, segRoundedRect.Y));
-                ctx.LineTo(     new Point(segRoundedRect.X + segRoundedRect.Width, segRoundedRect.Y + segRoundedRect.Height));
-                ctx.LineTo(     new Point(segRoundedRect.X, segRoundedRect.Y + segRoundedRect.Height));
-                ctx.EndFigure(true);
-            }
-            dc.DrawGeometry(null, segBrush, geom);
-        }
-
-        // Draw markers on top
-        for (int i = 0; i < vm.Segments.Count; i++)
-        {
-            var seg = vm.Segments[i];
-            DrawMarker(dc, seg.Start, true);
-            DrawMarker(dc, seg.End, false);
-        }
-
-        // Draw current position indicator
-        DrawPositionIndicator(dc, vm.SliderLiveValue);
-
-        // Draw ruler
-        DrawRuler(dc, 0, vm.DurationSeconds);
-    }
-
-    private void DrawRuler(DrawingContext dc, double startSec, double endSec)
-    {
-        var height = Bounds.Height;
-        var y = height - 18;
-        var pen = new Pen(Brushes.Gray, 1);
-        dc.DrawLine(pen, new Point(0, y), new Point(Bounds.Width, y));
-
-        if (ViewModel == null || ViewModel.DurationSeconds <= 0) return;
-
-        var totalSec = ViewModel.DurationSeconds;
-        var approxTicks = Math.Max(2, (int)(Bounds.Width / 100));
-        var tickSec = Math.Max(1.0, totalSec / approxTicks);
-
-        for (double t = 0; t <= totalSec; t += tickSec)
-        {
-            var x = SecondsToPixel(t);
-            dc.DrawLine(pen, new Point(x, y), new Point(x, y - 6));
-            var text = FormatTime(t);
-            var textBrush = Brushes.LightGray; // or new SolidColorBrush(Color.Parse("#FFCCCCCC"));
-            var ft = new FormattedText(
-                text,
-                CultureInfo.CurrentUICulture,
-                FlowDirection.LeftToRight,
-                Typeface.Default,
-                12,
-                textBrush);
-
-            dc.DrawText(ft, new Point(x + 2, y - 18));
-        }
-    }
-
-    private void DrawContinuousPreviewStrip(DrawingContext dc)
-    {
-        var vm = ViewModel;
-        if (vm == null || vm.DurationSeconds <= 0)
-            return;
-
-        double stripY = (Bounds.Height - _segmentBarHeight) / 2;
-        double stripHeight = _segmentBarHeight;
-
-        double currentX = 0;
-        double endX = Bounds.Width;
-
-        var bmp = GetPreview(0);
-        var noPreviewAvailable = bmp == null;
-        if (bmp == null)
-        {
-            StartPreviewLoad(0);
-            return;
-        }
-
-        var previewScale = (double)stripHeight / bmp.PixelSize.Height;
-        var previewTileWidth = bmp.PixelSize.Width * previewScale;
-
-        using (dc.PushClip(new Rect(0, stripY, Bounds.Width, stripHeight)))
-        {
-            while (currentX < endX)
-            {
-                double posSec = PixelToSeconds(currentX);
-                if (posSec < 0) posSec = 0;
-                if (posSec > vm.DurationSeconds) posSec = vm.DurationSeconds;
-
-                bmp = GetPreview(posSec);
-
-                if (bmp == null)
-                {
-                    StartPreviewLoad(posSec);
-
-                    // advance by estimated width
-                    currentX += previewTileWidth;
-                    continue;
-                }
-
-                // scale full frame to strip height
-                double scale = stripHeight / bmp.PixelSize.Height;
-                double tileWidth = bmp.PixelSize.Width * scale;
-
-                var src = new Rect(0, 0, bmp.PixelSize.Width, bmp.PixelSize.Height);
-                var dst = new Rect(currentX, stripY, tileWidth, stripHeight);
-
-                dc.DrawImage(bmp, src, dst);
-
-                currentX += tileWidth;
-            }
-        }
-    }
-
-    private void DrawGapOverlays(DrawingContext dc)
-    {
-        var vm = ViewModel;
-        if (vm == null || vm.Segments.Count == 0)
-            return;
-
-        double stripY = (Bounds.Height - _segmentBarHeight) / 2;
-        double stripHeight = _segmentBarHeight;
-
-        var gapBrush = new SolidColorBrush(Color.FromArgb(190, 80, 80, 80)); 
-
-        double lastEnd = 0;
-
-        for (int i = 0; i < vm.Segments.Count; i++)
-        {
-            var seg = vm.Segments[i];
-
-            if (seg.Start > lastEnd)
-            {
-                double gapLeft = SecondsToPixel(lastEnd);
-                double gapRight = SecondsToPixel(seg.Start);
-                double w = gapRight - gapLeft;
-
-                if (w > 0)
-                    dc.FillRectangle(gapBrush, new Rect(gapLeft, stripY, w, stripHeight));
-            }
-
-            lastEnd = seg.End;
-        }
-
-        // tail gap
-        if (lastEnd < vm.DurationSeconds)
-        {
-            double gapLeft = SecondsToPixel(lastEnd);
-            double gapRight = SecondsToPixel(vm.DurationSeconds);
-            double w = gapRight - gapLeft;
-
-            if (w > 0)
-                dc.FillRectangle(gapBrush, new Rect(gapLeft, stripY, w, stripHeight));
-        }
-    }
-
-    private void DrawOverlongSegmentOverlays(DrawingContext dc)
-    {
-        var vm = ViewModel;
-        if (vm == null || vm.Segments.Count == 0)
-            return;
-
-        if (vm.OverrideTargetDuration <= 0)
-            return;
-
-        double stripY = (Bounds.Height - _segmentBarHeight) / 2;
-        double stripHeight = _segmentBarHeight;
-
-        var overBrush = new SolidColorBrush(Color.FromArgb(128, 255, 0, 0)); // 50% red
-
-        foreach (var seg in vm.Segments)
-        {
-            double length = seg.End - seg.Start;
-            if (length <= vm.OverrideTargetDuration)
-                continue;
-
-            double left = SecondsToPixel(seg.Start);
-            double right = SecondsToPixel(seg.End);
-            double w = right - left;
-
-            if (w > 0)
-                dc.FillRectangle(overBrush, new Rect(left, stripY, w, stripHeight));
-        }
-    }
-
-    private Bitmap? GetPreview(double pos)
-    {
-        var key = PreviewCacheKey(pos);
-        lock (_cacheLock)
-        {
-            _previewCache.TryGet(key, out var bmp);
-            return bmp;
-        }
-    }
-
-    private void StartPreviewLoad(double pos)
-    {
-        var vm = ViewModel;
-        if (vm == null) 
-            return;
-
-        var key = PreviewCacheKey(pos);
-        lock (_cacheLock)
-        {
-            if (_previewLoadCts.ContainsKey(key) || _previewCache.ContainsKey(key))
-                return;
-
-            var cts = new CancellationTokenSource();
-            _previewLoadCts[key] = cts;
-
-            // Run an async loader on threadpool
-            Task.Run(async () =>
-            {
-                try
-                {
-                    // call host-provided async GetPreview
-                    var bmp = await vm.GetThumbnail(pos).ConfigureAwait(false);
-
-                    if (bmp != null && !cts.IsCancellationRequested)
-                    {
-                        lock (_cacheLock)
-                        {
-                            _previewCache.Add(key, bmp);
-                            _previewLoadCts.Remove(key);
-                        }
-
-                        // notify UI thread to redraw
-                        Dispatcher.UIThread.Post(InvalidateVisual, DispatcherPriority.Background);
-                    }
-                    else
-                    {
-                        lock (_cacheLock)
-                        {
-                            _previewLoadCts.Remove(key);
-                        }
-                    }
-                }
-                catch (OperationCanceledException)
-                {
-                    lock (_cacheLock) { _previewLoadCts.Remove(key); }
-                }
-                catch
-                {
-                    lock (_cacheLock) { _previewLoadCts.Remove(key); }
-                }
-            }, cts.Token);
-        }
-    }
-
-
-    private string PreviewCacheKey(double pos) => $"{pos:F3}";
-
-    private Rect SegmentRectFor(Segment seg)
-    {
-        var left = SecondsToPixel(seg.Start);
-        var right = SecondsToPixel(seg.End);
-        var y = 0;
-        return new Rect(left, y, Math.Max(0, right - left), Bounds.Height);
-    }
-
-    private double SecondsToPixel(double seconds)
-    {
-        return seconds * PixelsPerSecond;
-    }
-
-    private double PixelToSeconds(double px)
-    {
-        return px / PixelsPerSecond;
-    }
-
-    private void DrawMarker(DrawingContext dc, double seconds, bool isStart)
-    {
-        var x = SecondsToPixel(seconds);
-        var top = (Bounds.Height - _segmentBarHeight) / 2 - _markerTriangleSize - 2;
-        var lineTop = top + _markerTriangleSize + 2;
-        var lineBottom = lineTop + _markerLineHeight;
-
-        double midY = top + _markerTriangleSize / 2.0;
-
-        var tri = new StreamGeometry();
-        using (var ctx = tri.Open())
-        {
-            if (isStart)
-            {
-                // segment is to the right -> triangle points right
-                var vTop = new Point(x, top);
-                var vBottom = new Point(x, top + _markerTriangleSize);
-                var point = new Point(x + _markerTriangleSize, midY);
-
-                ctx.BeginFigure(point, true);
-                ctx.LineTo(vBottom);
-                ctx.LineTo(vTop);
-                ctx.EndFigure(true);
-            }
-            else
-            {
-                // segment is to the left -> triangle points left
-                var vTop = new Point(x, top);
-                var vBottom = new Point(x, top + _markerTriangleSize);
-                var point = new Point(x - _markerTriangleSize, midY);
-
-                ctx.BeginFigure(point, true);
-                ctx.LineTo(vTop);
-                ctx.LineTo(vBottom);
-                ctx.EndFigure(true);
-            }
-        }
-
-        dc.DrawGeometry(MarkerStroke ?? Brushes.White, null, tri);
-
-        var pen = new Pen(MarkerStroke ?? Brushes.White, _markerLineWidth);
-        dc.DrawLine(pen, new Point(x, lineTop), new Point(x, lineBottom));
-    }
-
-    private void DrawPositionIndicator(DrawingContext dc, double seconds)
-    {
-        var x = SecondsToPixel(seconds);
-        var pen = new Pen(Brushes.Red, 1.5);
-        dc.DrawLine(pen, new Point(x, 0), new Point(x, Bounds.Height));
-    }
-
-    private string FormatTime(double seconds)
-    {
-        var ts = TimeSpan.FromSeconds(Math.Max(0, seconds));
-        if (ts.TotalHours >= 1)
-            return $"{(int)ts.TotalHours:D2}:{ts.Minutes:D2}:{ts.Seconds:D2}";
-        return $"{ts.Minutes:D2}:{ts.Seconds:D2}";
-    }
-
-    // Interaction
-
-    private void OnPointerPressed(object? sender, PointerPressedEventArgs e)
-    {
-        Focus();
-
-        var p = e.GetPosition(this);
-        _lastPointerPoint = p;
-        _isSplitModifierActive = e.KeyModifiers.HasFlag(KeyModifiers.Control);
-
-        var hit = HitTestAtPoint(p);
-        if (hit.Type == HitType.StartMarker)
-        {
-            BeginDrag(DragMode.DragStartMarker, hit.SegmentIndex, e);
-        }
-        else if (hit.Type == HitType.EndMarker)
-        {
-            BeginDrag(DragMode.DragEndMarker, hit.SegmentIndex, e);
-        }
-        else
-        {
-            // any other hit just moves playhead
-            SetPlayheadFromPoint(p);
-        }
-
-        if (_isSplitModifierActive && hit.Type == HitType.SegmentBody)
-        {
-            var sec = PixelToSeconds(p.X);
-            TrySplitSegmentAt(hit.SegmentIndex, sec);
-        }
-
-        e.Pointer.Capture(this);
-        _isPointerCaptured = true;
-        e.Handled = true;
-    }
-
-
-    private void OnPointerMoved(object? sender, PointerEventArgs e)
-    {
-        if (!_isPointerCaptured) return;
-        var p = e.GetPosition(this);
-
-        if (_dragMode == DragMode.None)
-        {
-            _lastPointerPoint = p;
-            return;
-        }
-
-        var vm = ViewModel;
-        if (vm == null) return;
-
-        var sec = PixelToSeconds(p.X);
-        sec = Math.Max(0, Math.Min(vm.DurationSeconds, sec));
-
-        switch (_dragMode)
-        {
-            case DragMode.DragStartMarker:
-                MoveSegmentStart(_activeSegmentIndex, sec);
-                break;
-            case DragMode.DragEndMarker:
-                MoveSegmentEnd(_activeSegmentIndex, sec);
-                break;
-        }
-
-        _isInternalSliderUpdate = true;
-        vm.SliderLiveValue = sec;
-        _isInternalSliderUpdate = false;
-
-        ThrottledInvalidate();
-        _lastPointerPoint = p;
-        e.Handled = true;
-    }
-
-
-    private void OnPointerReleased(object? sender, PointerReleasedEventArgs e)
-    {
-        if (_isPointerCaptured)
-        {
-            e.Pointer.Capture(null);
-            _isPointerCaptured = false;
-        }
-        _dragMode = DragMode.None;
-        _activeSegmentIndex = -1;
-        e.Handled = true;
-    }
-
-    private void OnPointerCaptureLost(object? sender, PointerCaptureLostEventArgs e)
-    {
-        _isPointerCaptured = false;
-        _dragMode = DragMode.None;
-        _activeSegmentIndex = -1;
-    }
-
-    private void OnKeyDown(object? sender, KeyEventArgs e)
-    {
-        if (e.Key == Key.LeftCtrl || e.Key == Key.RightCtrl)
-        {
-            _isSplitModifierActive = true;
-            return;
-        }
-
-        if (e.Key == Key.Delete)
-        {
-            TryDeleteCurrentSegment();
-            e.Handled = true;
-            return;
-        }
-    }
-
-
-    private void OnKeyUp(object? sender, KeyEventArgs e)
-    {
-        if (e.Key == Key.LeftCtrl || e.Key == Key.RightCtrl) 
-            _isSplitModifierActive = false;
-    }
-
-    private void TryDeleteCurrentSegment()
-    {
-        var vm = ViewModel;
-        if (vm == null)
-            return;
-
-        double pos = vm.SliderLiveValue;
-
-        int idx = -1;
-        for (int i = 0; i < vm.Segments.Count; i++)
-        {
-            var s = vm.Segments[i];
-            if (pos >= s.Start && pos <= s.End)
-            {
-                idx = i;
-                break;
-            }
-        }
-
-        if (idx == -1)
-            return;
-
-        Dispatcher.UIThread.Post(() =>
-        {
-            if (idx >= 0 && idx < vm.Segments.Count)
-                vm.Segments.RemoveAt(idx);
-
-            if (vm.Segments.Count == 0)
-                vm.GenerateSegments();
-
-        }, DispatcherPriority.Background);
-    }
-
-
-    private void BeginDrag(DragMode mode, int segmentIndex, PointerPressedEventArgs e)
-    {
-        _dragMode = mode;
-        _activeSegmentIndex = segmentIndex;
-        _lastPointerPoint = e.GetPosition(this);
-    }
-
-    private void ThrottledInvalidate()
-    {
-        var now = DateTime.UtcNow;
-        if (now - _lastInvalidate > _invalidateThrottle)
-        {
-            _lastInvalidate = now;
-            InvalidateVisual();
-        }
-    }
-
-    private void SetPlayheadFromPoint(Point p)
-    {
-        var vm = ViewModel;
-        if (vm == null) 
-            return;
-
-        double sec = PixelToSeconds(p.X);
-        sec = Math.Max(0, Math.Min(vm.DurationSeconds, sec));
-
-        _isInternalSliderUpdate = true;
-        vm.SliderLiveValue = sec;
-        _isInternalSliderUpdate = false;
-
-        InvalidateVisual();
-    }
-
-    private void MoveSegmentStart(int index, double newStart)
-    {
-        var vm = ViewModel;
-        if (vm == null) return;
-        if (index < 0 || index >= vm.Segments.Count) return;
-
-        var seg = vm.Segments[index];
-        var min = index == 0 ? 0.0 : vm.Segments[index - 1].End;
-        var max = seg.End - 0.001;
-        var clamped = Math.Max(min, Math.Min(max, newStart));
-        if (Math.Abs(clamped - seg.Start) < 1e-6) return;
-
-        var newSeg = seg with { Start = clamped };
-        vm.Segments[index] = newSeg;
-    }
-
-    private void MoveSegmentEnd(int index, double newEnd)
-    {
-        var vm = ViewModel;
-        if (vm == null) return;
-        if (index < 0 || index >= vm.Segments.Count) return;
-
-        var seg = vm.Segments[index];
-        var min = seg.Start + 0.001;
-        var max = index == vm.Segments.Count - 1 ? vm.DurationSeconds : vm.Segments[index + 1].Start;
-        var clamped = Math.Max(min, Math.Min(max, newEnd));
-        if (Math.Abs(clamped - seg.End) < 1e-6) return;
-
-        var newSeg = seg with { End = clamped };
-        vm.Segments[index] = newSeg;
-    }
-
-    private void MoveSegmentByDelta(int index, double deltaSec)
-    {
-        var vm = ViewModel;
-        if (vm == null) return;
-        if (index < 0 || index >= vm.Segments.Count) return;
-
-        var seg = vm.Segments[index];
-        var leftLimit = index == 0 ? 0.0 : vm.Segments[index - 1].End;
-        var rightLimit = index == vm.Segments.Count - 1 ? vm.DurationSeconds : vm.Segments[index + 1].Start;
-
-        var newStart = seg.Start + deltaSec;
-        var newEnd = seg.End + deltaSec;
-
-        // clamp so segment stays within neighbors
-        var segLength = seg.End - seg.Start;
-        if (newStart < leftLimit)
-        {
-            newStart = leftLimit;
-            newEnd = newStart + segLength;
-        }
-        if (newEnd > rightLimit)
-        {
-            newEnd = rightLimit;
-            newStart = newEnd - segLength;
-        }
-
-        // apply
-        vm.Segments[index] = seg with { Start = newStart, End = newEnd };
-    }
-
-    private void TrySplitSegmentAt(int index, double sec)
-    {
-        var vm = ViewModel;
-        if (vm == null) return;
-        if (index < 0 || index >= vm.Segments.Count) return;
-
-        var seg = vm.Segments[index];
-        if (sec <= seg.Start + 0.001 || sec >= seg.End - 0.001) return;
-
-        var left = seg with { End = sec };
-        var right = seg with { Start = sec };
-        vm.Segments[index] = left;
-        vm.Segments.Insert(index + 1, right);
-        InvalidateVisual();
-    }
-
-    private HitResult HitTestAtPoint(Point p)
-    {
-        var vm = ViewModel;
-        if (vm == null)
-            return new HitResult(HitType.None, -1);
-
-        double topRegion = Bounds.Height / 4.0;
-
-        for (int i = 0; i < vm.Segments.Count; i++)
-        {
-            var seg = vm.Segments[i];
-            double startX = SecondsToPixel(seg.Start);
-            double endX   = SecondsToPixel(seg.End);
-
-            // marker hit only in top 1/4
-            if (p.Y >= 0 && p.Y <= topRegion)
-            {
-                // start marker triangle footprint: [startX .. startX + size]
-                if (p.X >= startX && p.X <= startX + _markerTriangleSize)
-                    return new HitResult(HitType.StartMarker, i);
-
-                // end marker triangle footprint: [endX - size .. endX]
-                if (p.X >= endX - _markerTriangleSize && p.X <= endX)
-                    return new HitResult(HitType.EndMarker, i);
-            }
-
-            // segment body (no drag, only click/split)
-            if (p.X >= startX && p.X <= endX && p.Y >= 0 && p.Y <= Bounds.Height)
-                return new HitResult(HitType.SegmentBody, i);
-        }
-
-        return new HitResult(HitType.Gap, -1);
-    }
-
-    // IDisposable
-    public void Dispose()
-    {
-        UnsubscribeFromViewModel();
-        CancelAllPreviewLoads();
-        _previewCache.Clear();
-    }
-
-    // Helpers and small types
-
-    private enum DragMode
-    {
-        None,
-        DragStartMarker,
-        DragEndMarker
-    }
-
-    private enum HitType
-    {
-        None,
-        StartMarker,
-        EndMarker,
-        SegmentBody,
-        Gap
-    }
-
-    private readonly struct HitResult
-    {
-        public HitType Type { get; }
-        public int SegmentIndex { get; }
-        public HitResult(HitType type, int idx) { Type = type; SegmentIndex = idx; }
-    }
-
-    // Simple LRU cache for Bitmaps
-    private class LruCache<TKey, TValue> where TKey : notnull where TValue : class
-    {
-        private readonly int _capacity;
-        private readonly Dictionary<TKey, LinkedListNode<(TKey key, TValue value)>> _map;
-        private readonly LinkedList<(TKey key, TValue value)> _list;
-        private readonly object _sync = new();
-
-        public LruCache(int capacity)
-        {
-            _capacity = Math.Max(1, capacity);
-            _map = new Dictionary<TKey, LinkedListNode<(TKey, TValue)>>();
-            _list = new LinkedList<(TKey, TValue)>();
-        }
-
-        public bool TryGet(TKey key, out TValue? value)
-        {
-            lock (_sync)
-            {
-                if (_map.TryGetValue(key, out var node))
-                {
-                    value = node.Value.value;
-                    _list.Remove(node);
-                    _list.AddFirst(node);
-                    return true;
-                }
-                value = null;
-                return false;
-            }
-        }
-
-        public void Add(TKey key, TValue value)
-        {
-            lock (_sync)
-            {
-                if (_map.TryGetValue(key, out var node))
-                {
-                    _list.Remove(node);
-                    _map.Remove(key);
-                }
-
-                var newNode = new LinkedListNode<(TKey, TValue)>((key, value));
-                _list.AddFirst(newNode);
-                _map[key] = newNode;
-
-                if (_map.Count > _capacity)
-                {
-                    var last = _list.Last!;
-                    _map.Remove(last.Value.key);
-                    _list.RemoveLast();
-                    if (last.Value.value is IDisposable d)
-                    {
-                        try { d.Dispose(); } catch { }
-                    }
-                }
-            }
-        }
-
-        public bool ContainsKey(TKey key)
-        {
-            lock (_sync) return _map.ContainsKey(key);
-        }
-
-        public void Clear()
-        {
-            lock (_sync)
-            {
-                foreach (var node in _list)
-                {
-                    if (node.value is IDisposable d)
-                    {
-                        try { d.Dispose(); } catch { }
-                    }
-                }
-                _map.Clear();
-                _list.Clear();
-            }
-        }
-    }
-
-    // Disposable helper
-    private static class Disposable
-    {
-        public static IDisposable Create(Action dispose)
-        {
-            return new AnonymousDisposable(dispose);
-        }
-
-        private sealed class AnonymousDisposable : IDisposable
-        {
-            private Action? _dispose;
-            public AnonymousDisposable(Action dispose) { _dispose = dispose; }
-            public void Dispose() { var d = Interlocked.Exchange(ref _dispose, null); d?.Invoke(); }
-        }
-    }
-}

Splitter-UI/Converters/ActionToIconConverter.cs

@@ -1,23 +0,0 @@
-using System.Globalization;
-using Avalonia.Data.Converters;
-
-namespace Splitter_UI.Converters;
-
-public sealed class ActionToIconConverter : IValueConverter
-{
-    public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
-    {
-        if (value == null)
-            return null;
-
-        var p = System.Convert.ToInt32(value);
-        
-        return p == 0 
-            ? "\uf125" // FA7 crop
-            : "\uf2f1" // FA7 rotate
-            ;
-    }
-
-    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
-        => throw new NotSupportedException();
-}

Splitter-UI/Converters/BoolInvertConverter.cs

@@ -1,15 +0,0 @@
-using System.Globalization;
-using Avalonia.Data.Converters;
-
-namespace Splitter_UI.Converters;
-
-public sealed class BoolInvertConverter : IValueConverter
-{
-    public static readonly BoolInvertConverter Instance = new();
-
-    public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
-        => value is bool b ? !b : value;
-
-    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
-        => value is bool b ? !b : value;
-}

Splitter-UI/Converters/ConsoleColorToBrushConverter.cs

@@ -1,39 +0,0 @@
-using Avalonia.Data.Converters;
-using Avalonia.Media;
-using System.Globalization;
-
-namespace Splitter_UI.Converters;
-
-public sealed class ConsoleColorToBrushConverter : IValueConverter
-{
-    public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
-    {
-        if (value is ConsoleColor c)
-            return new SolidColorBrush(ToColor(c));
-
-        return Brushes.White;
-    }
-
-    private static Color ToColor(ConsoleColor c) =>
-        c switch
-        {
-            ConsoleColor.Black       => Colors.Black,
-            ConsoleColor.DarkBlue    => Colors.DarkBlue,
-            ConsoleColor.DarkGreen   => Colors.DarkGreen,
-            ConsoleColor.DarkCyan    => Colors.DarkCyan,
-            ConsoleColor.DarkRed     => Colors.DarkRed,
-            ConsoleColor.DarkMagenta => Colors.DarkMagenta,
-            ConsoleColor.DarkYellow  => Colors.Olive,
-            ConsoleColor.Gray        => Colors.Gray,
-            ConsoleColor.DarkGray    => Colors.DarkGray,
-            ConsoleColor.Blue        => Colors.Blue,
-            ConsoleColor.Green       => Colors.Green,
-            ConsoleColor.Cyan        => Colors.Cyan,
-            ConsoleColor.Red         => Colors.Red,
-            ConsoleColor.Magenta     => Colors.Magenta,
-            ConsoleColor.Yellow      => Colors.Yellow,
-            ConsoleColor.White       => Colors.White,
-            _                        => Colors.White
-        };
-    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture) => throw new NotImplementedException();
-}

Splitter-UI/Converters/RotationAngleToIconConverter.cs

@@ -1,21 +0,0 @@
-using System.Globalization;
-using Avalonia.Data.Converters;
-
-namespace Splitter_UI.Converters;
-
-public sealed class RotationAngleToIconConverter : IValueConverter
-{
-    public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
-    {
-        return value switch
-        {
-            90  => "\uf2f9",  // FA7 (fa-rotate-left  / fa-arrow-rotate-left  / fa-undo)
-            180 => "\uf2f1",  // FA7 (fa-sync-alt)
-            270 => "\uf2ea",  // FA7 (fa-rotate-right / fa-arrow-rotate-right / fa-redo)
-            _   => null
-        };
-    }
-
-    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
-        => throw new NotSupportedException();
-}

Splitter-UI/Converters/ZeroToBoolConverter.cs

@@ -1,13 +0,0 @@
-using System.Globalization;
-using Avalonia.Data.Converters;
-
-namespace Splitter_UI.Converters;
-
-public sealed class ZeroToBoolConverter : IValueConverter
-{
-    public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
-        => (value is int i && i == 0);
-
-    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
-        => throw new NotSupportedException();
-}

Splitter-UI/GlobalUsing.cs

@@ -1,16 +0,0 @@
-global using System;
-global using System.Collections.Generic;
-global using System.Threading.Tasks;
-
-global using OpenCvSharp;
-global using Size = Avalonia.Size;
-global using Rect = Avalonia.Rect;
-
-global using splitter;
-global using splitter.tui;
-global using splitter.algo;
-global using splitter.probe;
-
-global using Splitter_UI.Models;
-global using Splitter_UI.Services;
-global using Splitter_UI.ViewModels;

Splitter-UI/Models/ParameterEntry.cs

@@ -1,15 +0,0 @@
-using CommunityToolkit.Mvvm.ComponentModel;
-
-namespace Splitter_UI.Models;
-
-public partial class ParameterEntry : ObservableObject
-{
-    public string Key { get; }
-    [ObservableProperty] private string _value;
-
-    public ParameterEntry(string key, string value)
-    {
-        Key = key;
-        Value = value;
-    }
-}

Splitter-UI/Models/PreviewData.cs

@@ -1,22 +0,0 @@
-namespace Splitter_UI.Models;
-
-public class PreviewData
-{
-    public Avalonia.Media.Imaging.Bitmap? Frame          { get; }
-    public IReadOnlyList<DetectedPerson> DetectedBoxes { get; }
-    public Rect? CropRect                                { get; }
-    public Point2f GravitateTo                           { get; }
-    public TimeSpan Position                             { get; }
-    public int? Rotate                                   { get; }
-
-    public PreviewData(Avalonia.Media.Imaging.Bitmap? frame, IReadOnlyList<DetectedPerson> boxes, Rect? crop, Point2f gravitateTo, TimeSpan position, int? rotate)
-    {
-        Frame         = frame;
-        DetectedBoxes = boxes;
-        CropRect      = crop;
-        GravitateTo   = gravitateTo;
-        Position      = position;
-        Rotate        = rotate;
-    }
-
-}

Splitter-UI/Program.cs

@@ -1,88 +0,0 @@
-using Avalonia;
-using Avalonia.Media;
-using Microsoft.Extensions.DependencyInjection;
-
-namespace Splitter_UI;
-
-internal sealed class Program
-{
-    // Initialization code. Don't use any Avalonia, third-party APIs or any
-    // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
-    // yet and stuff might break.
-    [STAThread]
-    public static void Main(string[] args)
-    {
-        BuildAvaloniaApp()
-            .StartWithClassicDesktopLifetime(args);
-    }
-
-    private static ServiceCollection ConfigureServices()
-    {
-        var services = new ServiceCollection();
-
-        var logPaveVM = new LogPaneViewModel();
-        // ViewModels
-        services.AddTransient<MainViewModel>();
-        services.AddTransient<FileListViewModel>();
-        services.AddTransient<PreviewPaneViewModel>();
-        services.AddTransient<InspectorPaneViewModel>();
-        services.AddSingleton<StatusBarViewModel>();
-        services.AddSingleton<ProgressViewModel>();
-        services.AddSingleton<LogPaneViewModel>(logPaveVM);
-        services.AddSingleton<ILogService>(logPaveVM);
-
-        // splitter services
-        services.AddSingleton<UltraFaceDetector>();
-        services.AddSingleton<YoloV10ObjectDetector>();
-        services.AddSingleton<DummyDetector>();
-        services.AddSingleton<OSNetEmbeddingExtractor>();
-        services.AddSingleton<IObjectTracker, ObjectTracker>();
-        services.AddSingleton<IBufferPool, BufferPool>();
-        services.AddSingleton<IMatToBitmapConverter, MatToBitmapConverter>();
-        services.AddKeyedSingleton<IObjectDetector>("face", (x,_) => new SingleThreadedDetector<UltraFaceDetector>(x.GetRequiredService<UltraFaceDetector>()));
-        services.AddKeyedSingleton<IObjectDetector>("body", (x,_) => new SingleThreadedDetector<YoloV10ObjectDetector>(x.GetRequiredService<YoloV10ObjectDetector>()));
-        services.AddKeyedSingleton<IObjectDetector>("none", (x,_) => new SingleThreadedDetector<DummyDetector>(x.GetRequiredService<DummyDetector>()));
-        services.AddSingleton<IEmbeddingExtractor>(x => new SingleThreadedEmbeddingExtractor<OSNetEmbeddingExtractor>(x.GetRequiredService<OSNetEmbeddingExtractor>()));
-        services.AddSingleton<Func<string, IObjectDetector>>(x => detectorName => x.GetKeyedService<IObjectDetector>(detectorName) ?? new DummyDetector());
-        services.AddSingleton<Func<string, IObjectTracker>>(x => detectorName =>
-        {
-            var detectorFactory = x.GetRequiredService<Func<string, IObjectDetector>>();
-            var extractor       = x.GetRequiredService<IEmbeddingExtractor>();
-            return new ObjectTracker(detectorFactory(detectorName), extractor);
-        });
-        services.AddSingleton<ILogger, GlobalLogger>();
-        services.AddSingleton<IJobProcessor, JobProcessor>();
-
-        // Domain services (your pipeline)
-        services.AddTransient<IFileProbeService,    FileProbeService>();
-        services.AddTransient<IThumbnailService,    ThumbnailService>();
-        services.AddSingleton<IAutoDecisionService, AutoDecisionService>();
-
-        services.AddSingleton<IFileJobFactory, FileJobFactory>();
-
-        return services;
-    }
-
-    // Avalonia configuration, don't remove; also used by visual designer.
-    public static AppBuilder BuildAvaloniaApp()
-    {
-        var services = ConfigureServices();
-        var provider = services.BuildServiceProvider();
-
-        return AppBuilder.Configure<App>(() => new App(provider))
-                .UsePlatformDetect()
-                .With(new FontManagerOptions
-                {
-                    FontFallbacks = new[]
-                    {
-                    new FontFallback { FontFamily = new FontFamily("Font Awesome 7 Free") },
-                    new FontFallback { FontFamily = new FontFamily("Font Awesome 7 Free Solid") }
-                    }
-                })
-#if DEBUG
-                .WithDeveloperTools()
-#endif
-                .WithInterFont()
-                .LogToTrace();
-    }
-}

Splitter-UI/README.md

@@ -1,59 +0,0 @@
-# Splitter-UI
-
-
-A compact, modern desktop front-end for Splitter (the high-performance FFmpeg-based video splitter). Built with Avalonia 12 and 
-targeting .NET 10, this project provides a native-feeling cross-platform UI to configure splitting jobs, preview smart 
-crops, and drive the Splitter CLI backend.
-
-## Overview
-
-Splitter-UI wraps the core Splitter pipeline (the referenced splitter-cli project) and exposes common workflow tasks 
-through an accessible interface: input selection, output naming, duration and crop controls, rotation options, detector settings, 
-and a job monitor with progress and ETA. For the full command-line feature set and the implementation rationale, see the 
-repository root README (../README.md).
-
-## Screenshots
-
-![Main window with job list and settings](screenshot.png)
-
-
-## Getting started
-
-Requirements: .NET 10 runtime and FFmpeg/FFprobe available on PATH. The UI references the splitter-cli project; 
-build the solution to ensure the CLI is available to the UI during development.
-
-To build and run locally:
-
-1. From the solution root run: dotnet build
-2. Start the UI project: dotnet run --project Splitter-UI
-
-## Packaging
-
-The csproj is configured for a win-x64 self-contained runtime identifier. Use dotnet publish with the desired 
-configuration and runtime identifier to produce distributable artifacts.
-
-## Configuration
-
-Settings exposed in the UI map closely to the CLI options: output folder, filename mask, segment duration and 
-force mode, rotation, crop and detector choices, gravitation bias and detector parameters. Advanced passthrough 
-arguments can still be supplied to FFmpeg via the CLI passthrough field.
-
-## Developer notes
-
-- Project: Splitter-UI (Avalonia 12, net10.0)
-- Key packages: Avalonia, Avalonia.Controls.DataGrid, Avalonia.Desktop, Avalonia.Themes.Fluent, CommunityToolkit.Mvvm
-- The UI project references the splitter-cli project for tight integration during development.
-
-## Troubleshooting
-
-If FFmpeg or FFprobe are not found, the app will be unable to probe media or run splits. Verify tools are on the 
-system PATH and that the runtime matches the built RID.
-
-## Contributing and License
-
-Contributions follow the main repository guidelines. See the root README for contributor and license information.
-
-## Contact
-
-For issues or questions, open an issue on the project repository or contact the 
-maintainer listed in the main README.

Splitter-UI/Services/AutoDecisionService.cs

@@ -1,75 +0,0 @@
-namespace Splitter_UI.Services;
-
-public sealed class AutoDecisionService(IThumbnailService _thumbnails, IFileProbeService _fileProbe, ILogger _log) : IAutoDecisionService
-{
-    public void ApplyAutoDecisions(JobViewModel job, CancellationToken token)
-    {
-        Task.Run(() => Detect(job, token));
-    }
-
-    private async Task Detect(JobViewModel job, CancellationToken token)
-    {
-        try
-        {
-            job.GravitateTo            = new(0.5f, 0.5f);
-            job.OverrideTargetDuration = 58.0;
-            job.Mask                   = "[NAME]_seg[NN].[EXT]";
-            job.OutputFolder           = Path.Combine(Path.GetDirectoryName(job.InputFile)!, "splitter");
-
-            job.Probe           = await _fileProbe.ProbeAsync(job.InputFile, token);
-            job.Thumbnail       = await _thumbnails.CreateThumbnailAsync(job.InputFile, job.Probe, rotateDegree: job.Rotate);
-
-            if (job.Probe.Width > job.Probe.Height)
-            {
-                job.Detect = "body";
-                job.Rotate = 0;
-
-                CalculateCrop(job);
-            }
-            //else
-            //{
-            //    var sampler         = new VideoRotationSampler(null);
-            //    job.Rotate = await sampler.DetectRotationAsync(job.InputFile, job.Probe.Duration, token);
-            //    job.Detect = job.Rotate == 0 ? null : "body";
-            //}
-
-            _log.LogInfo(job.ToString());
-        }
-        catch (Exception ex)
-        {
-            _log.LogError($"Error creating thumbnail for {Path.GetFileName(job.InputFile)}: {ex.Message}");
-        }
-    }
-
-    private static void CalculateCrop(JobViewModel job)
-    {
-        var targetAR = (float)CommandLine.DefaultW / CommandLine.DefaultH;
-        var pixelAspect = job.Probe!.Sar.X / job.Probe.Sar.Y;
-
-        var srcW = job.Probe.Width  * pixelAspect;
-        float srcH = job.Probe.Height;
-        var srcAR = srcW / srcH;
-
-        var cropH = srcH;
-        var cropW = cropH * targetAR;
-
-        if (cropW > srcW)
-        {
-            cropW = srcW;
-            cropH = cropW / targetAR;
-        }
-
-        var x = (srcW - cropW) * 0.5f;
-        var y = (srcH - cropH) * 0.5f;
-
-        var invPixelAspect = 1f / pixelAspect;
-
-        var cropW_px = cropW * invPixelAspect;
-        var cropH_px = cropH;
-
-        var x_px = x * invPixelAspect;
-        var y_px = y;
-
-        job.CropText = $"{(int)MathF.Round(cropW_px)},{(int)MathF.Round(cropH_px)}";
-    }
-}

Splitter-UI/Services/AvaloniaBitmapExtensions.cs

@@ -1,42 +0,0 @@
-using System.Runtime.InteropServices;
-using Avalonia;
-using Avalonia.Media.Imaging;
-
-namespace Splitter_UI.Services;
-
-public static class AvaloniaBitmapExtensions
-{
-    public static Mat ToMatContinuous(this Bitmap bmp)
-    {
-        var w = bmp.PixelSize.Width;
-        var h = bmp.PixelSize.Height;
-        var stride = w * 4;
-        var size = h * stride;
-
-        var buffer = new byte[size];
-        var handle = GCHandle.Alloc(buffer, GCHandleType.Pinned);
-
-        try
-        {
-            bmp.CopyPixels(
-                new PixelRect(0, 0, w, h),
-                handle.AddrOfPinnedObject(),
-                size,
-                stride);
-
-            return Mat.FromPixelData(h, w, MatType.CV_8UC4, buffer);
-        }
-        finally
-        {
-            handle.Free();
-        }
-    }
-
-    public static Mat ToMatBgrContinuous(this Bitmap bmp)
-    {
-        using var bgra = bmp.ToMatContinuous();
-        var bgr = new Mat();
-        Cv2.CvtColor(bgra, bgr, ColorConversionCodes.BGRA2BGR);
-        return bgr;
-    }
-}

Splitter-UI/Services/BufferPool.cs

@@ -1,59 +0,0 @@
-namespace Splitter_UI.Services;
-
-public sealed class BufferPool : IBufferPool
-{
-    private readonly int _capacity;
-
-    public sealed class Entry
-    {
-        public readonly int Width;
-        public readonly int Height;
-        public readonly byte[] Bgr;
-        public readonly byte[] Bgra;
-
-        public Entry(int w, int h)
-        {
-            Width = w;
-            Height = h;
-            Bgr = new byte[w * h * 3];
-            Bgra = new byte[w * h * 4];
-        }
-    }
-
-    private readonly Dictionary<(int w, int h), LinkedListNode<Entry>> _map;
-    private readonly LinkedList<Entry> _lru;
-
-    public BufferPool()
-    {
-        _capacity = 8;
-        _map = new Dictionary<(int w, int h), LinkedListNode<Entry>>(_capacity);
-        _lru = new LinkedList<Entry>();
-    }
-
-    public Entry Get(int w, int h)
-    {
-        var key = (w, h);
-
-        if (_map.TryGetValue(key, out var node))
-        {
-            _lru.Remove(node);
-            _lru.AddLast(node);
-            return node.Value;
-        }
-
-        var created = new Entry(w, h);
-        var newNode = new LinkedListNode<Entry>(created);
-
-        _lru.AddLast(newNode);
-        _map[key] = newNode;
-
-        if (_lru.Count > _capacity)
-        {
-            var first = _lru.First!;
-            _lru.RemoveFirst();
-            _map.Remove((first.Value.Width, first.Value.Height));
-        }
-
-        return created;
-    }
-}

Splitter-UI/Services/FileJobFactory.cs

@@ -1,17 +0,0 @@
-using Microsoft.Extensions.DependencyInjection;
-
-public sealed class FileJobFactory : IFileJobFactory
-{
-    private readonly IServiceProvider _services;
-
-    public FileJobFactory(IServiceProvider services)
-    {
-        _services = services;
-    }
-
-    public JobViewModel Create(SingleJob job)
-    {
-        // Resolve a fresh VM + fresh services
-        return ActivatorUtilities.CreateInstance<JobViewModel>(_services, job);
-    }
-}

Splitter-UI/Services/FileProbeService.cs

@@ -1,10 +0,0 @@
-namespace Splitter_UI.Services;
-
-public sealed class FileProbeService : IFileProbeService
-{
-    public async Task<VideoInfo> ProbeAsync(string inputFile, CancellationToken token)
-    {
-        var res = await Task.Run(() => ProbeVideo.Probe(inputFile, false, token), token);
-        return res;
-    }
-}

Splitter-UI/Services/GlobalLogger.cs

@@ -1,24 +0,0 @@
-namespace Splitter_UI.Services;
-
-internal class GlobalLogger(ILogService _logService, StatusBarViewModel _statusBar, ProgressViewModel _progress) : ILogger
-{
-    public void ClearProgress(string name, int progressLine) 
-    {
-        if (progressLine == 0)
-            _statusBar.Percent = 0;
-        else
-            _progress.ClearProgress(name, progressLine-1);
-    }
-    public void DrawProgress(string name, int progressLine, double progress, TimeSpan eta, double speed) 
-    {
-        if (progressLine == 0)
-            _statusBar.Percent = progress;
-        else
-            _progress.DrawProgress(name, progressLine - 1, progress, eta, speed);
-    }
-
-    public void Log(string prefix, ConsoleColor color, string msg)
-    {
-        _logService.Log(prefix, color, msg);
-    }
-}

Splitter-UI/Services/IAutoDecisionService.cs

@@ -1,6 +0,0 @@
-namespace Splitter_UI.Services;
-
-public interface IAutoDecisionService
-{
-    void ApplyAutoDecisions(JobViewModel job, CancellationToken token);
-}

Splitter-UI/Services/IBufferPool.cs

@@ -1,6 +0,0 @@
-namespace Splitter_UI.Services;
-
-public interface IBufferPool
-{
-    BufferPool.Entry Get(int w, int h);
-}

Splitter-UI/Services/IFileJobFactory.cs

@@ -1,6 +0,0 @@
-namespace Splitter_UI.Services;
-
-public interface IFileJobFactory
-{
-    JobViewModel Create(SingleJob job);
-}

Splitter-UI/Services/IFileProbeService.cs

@@ -1,6 +0,0 @@
-namespace Splitter_UI.Services;
-
-public interface IFileProbeService
-{
-    Task<VideoInfo> ProbeAsync(string inputFile, CancellationToken token);
-}

Splitter-UI/Services/ILogService.cs

@@ -1,7 +0,0 @@
-
-namespace Splitter_UI.Services;
-
-public interface ILogService
-{
-    void Log(string prefix, ConsoleColor color, string msg);
-}

Splitter-UI/Services/IMatToBitmapConverter.cs

@@ -1,9 +0,0 @@
-using Avalonia.Media.Imaging;
-
-namespace Splitter_UI.Services;
-
-public interface IMatToBitmapConverter
-{
-    Bitmap Convert(Mat mat, Bitmap? existing = null);
-    Bitmap Convert(byte[] bgr, int width, int height, Bitmap? existing = null);
-}

Splitter-UI/Services/IThumbnailService.cs

@@ -1,8 +0,0 @@
-using Avalonia.Media.Imaging;
-
-namespace Splitter_UI.Services;
-
-public interface IThumbnailService
-{
-    Task<Bitmap?> CreateThumbnailAsync(string file, VideoInfo probe, TimeSpan? skip = null, int? width = null, int? height = null, int? rotateDegree = null);
-}

Splitter-UI/Services/MatToBitmapConverter.cs

@@ -1,136 +0,0 @@
-using Avalonia;
-using Avalonia.Media.Imaging;
-using Avalonia.Platform;
-
-namespace Splitter_UI.Services;
-
-public sealed class MatToBitmapConverter(IBufferPool _pool) : IMatToBitmapConverter
-{
-    private readonly object     _sync = new();
-
-    public Bitmap Convert(Mat mat, Bitmap? existing = null)
-    {
-        if (mat.Empty())
-            throw new ArgumentException("Mat is empty.", nameof(mat));
-
-        var w = mat.Width;
-        var h = mat.Height;
-        var channels = mat.Channels();
-
-        if (channels != 3 && channels != 4)
-            throw new NotSupportedException($"Only 3 or 4 channel Mats are supported. Got {channels}.");
-
-        lock (_sync)
-        {
-            var entry = _pool.Get(w, h);
-
-            var src = mat;
-            if (!src.IsContinuous())
-                src = src.Clone();
-
-            unsafe
-            {
-                var srcPtr = (byte*)src.DataPointer;
-                var totalBytes = w * h * channels;
-
-                if (channels == 3)
-                {
-                    fixed (byte* dstBgr = entry.Bgr)
-                    {
-                        Buffer.MemoryCopy(srcPtr, dstBgr, entry.Bgr.Length, totalBytes);
-                    }
-
-                    ConvertBgrToBgra(entry.Bgr, entry.Bgra, w, h);
-                }
-                else
-                {
-                    fixed (byte* dstBgra = entry.Bgra)
-                    {
-                        Buffer.MemoryCopy(srcPtr, dstBgra, entry.Bgra.Length, totalBytes);
-                    }
-                }
-            }
-
-            if (existing is WriteableBitmap wb &&
-                wb.PixelSize.Width == w &&
-                wb.PixelSize.Height == h)
-            {
-                UpdateWriteableBitmap(wb, entry.Bgra, w, h);
-                return wb;
-            }
-
-            return CreateBitmap(entry.Bgra, w, h);
-        }
-    }
-
-    public Bitmap Convert(byte[] bgr, int width, int height, Bitmap? existing = null)
-    {
-        var entry = _pool.Get(width, height);
-        ConvertBgrToBgra(bgr, entry.Bgra, width, height);
-
-        if (existing is WriteableBitmap wb &&
-            wb.PixelSize.Width == width &&
-            wb.PixelSize.Height == height)
-        {
-            UpdateWriteableBitmap(wb, entry.Bgra, width, height);
-            return wb;
-        }
-
-        return CreateBitmap(entry.Bgra, width, height);
-    }
-
-
-    private static void ConvertBgrToBgra(byte[] bgr, byte[] bgra, int width, int height)
-    {
-        var si = 0;
-        var di = 0;
-        var totalPixels = width * height;
-
-        for (var i = 0; i < totalPixels; i++)
-        {
-            bgra[di + 0] = bgr[si + 0];
-            bgra[di + 1] = bgr[si + 1];
-            bgra[di + 2] = bgr[si + 2];
-            bgra[di + 3] = 255;
-
-            si += 3;
-            di += 4;
-        }
-    }
-
-    private static unsafe void UpdateWriteableBitmap(WriteableBitmap wb, byte[] bgra, int width, int height)
-    {
-        using var fb = wb.Lock();
-
-        var dstPtr = (byte*)fb.Address;
-        var dstStride = fb.RowBytes;
-        var srcStride = width * 4;
-
-        fixed (byte* srcPtr = bgra)
-        {
-            for (var y = 0; y < height; y++)
-            {
-                var srcRow = srcPtr + y * srcStride;
-                var dstRow = dstPtr + y * dstStride;
-
-                Buffer.MemoryCopy(srcRow, dstRow, dstStride, srcStride);
-            }
-        }
-    }
-
-    private static unsafe Bitmap CreateBitmap(byte[] bgra, int width, int height)
-    {
-        var stride = width * 4;
-
-        fixed (byte* p = bgra)
-        {
-            return new WriteableBitmap(
-                PixelFormat.Bgra8888,
-                AlphaFormat.Premul,
-                (nint)p,
-                new PixelSize(width, height),
-                new Vector(96, 96),
-                stride);
-        }
-    }
-}

Splitter-UI/Services/SingleThreadedDetector.cs

@@ -1,42 +0,0 @@
-namespace Splitter_UI.Services;
-
-public class SingleThreadedDetector<T>(IObjectDetector _detector) : IObjectDetector
-    where T : IObjectDetector
-{
-    private Lock _lock = new();
-
-    public List<DetectedPerson> DetectAll(SingleTask job, Mat frameCont)
-    {
-        lock (_lock)
-        {
-            return _detector.DetectAll(job, frameCont);
-        }
-    }
-    
-    public void Dispose()
-    {
-        if ( _detector is IDisposable d )
-            d.Dispose();
-    }
-}
-
-public class SingleThreadedEmbeddingExtractor<T>(IEmbeddingExtractor _extractor) : IEmbeddingExtractor
-    where T : IEmbeddingExtractor
-{
-    private Lock _lock = new();
-
-    public float[] Extract(Mat frame, OpenCvSharp.Rect box)
-    {
-        lock (_lock)
-        {
-            return _extractor.Extract(frame, box);
-        }
-    }
-
-    public void Dispose()
-    {
-        if (_extractor is IDisposable d)
-            d.Dispose();
-    }
-
-}

Splitter-UI/Services/ThumbnailService.cs

@@ -1,133 +0,0 @@
-using System.Diagnostics;
-using Avalonia.Media.Imaging;
-
-namespace Splitter_UI.Services;
-
-public sealed class ThumbnailService : IThumbnailService
-{
-    public const int ThumbWidth  = 160;
-    public const int ThumbHeight = 90;
-
-    private readonly IMatToBitmapConverter _converter;
-    private readonly IBufferPool _pool;
-
-    private SemaphoreSlim _lock = new(1,1);
-
-    public ThumbnailService(
-        IMatToBitmapConverter converter,
-        IBufferPool pool)
-    {
-        _converter = converter;
-        _pool = pool;
-    }
-
-    public async Task<Bitmap?> CreateThumbnailAsync(
-        string file,
-        VideoInfo probe,
-        TimeSpan? skip = null,
-        int? width = null,
-        int? height = null,
-        int? rotateDegree = null)
-    {
-        await _lock.WaitAsync();
-        try
-        {
-            return await CreateThumbnailInternal(
-                file,
-                probe,
-                skip,
-                width,
-                height,
-                rotateDegree
-            );
-        }
-        finally
-        {
-            _lock.Release();
-        }
-    }
-
-    private async Task<Bitmap?> CreateThumbnailInternal(
-        string file,
-        VideoInfo probe,
-        TimeSpan? skip = null,
-        int? width = null,
-        int? height = null,
-        int? rotateDegree = null)
-    {
-        width ??= ThumbWidth;
-        height ??= ThumbHeight;
-        skip ??= TimeSpan.Zero;
-
-        var entry = _pool.Get(width.Value, height.Value);
-
-        var ok = await DecodeFrameAsync(
-            entry.Bgr,
-            file,
-            skip.Value,
-            width.Value,
-            height.Value,
-            rotateDegree
-        );
-
-        if (!ok)
-            return null;
-
-        return _converter.Convert(entry.Bgr, width.Value, height.Value);
-    }
-
-    private static async Task<bool> DecodeFrameAsync(
-        byte[] bgrBuffer,
-        string file,
-        TimeSpan skip,
-        int width,
-        int height,
-        int? rotateDegree)
-    {
-        var rotationStr = TrackingSplitter.GetRorationArg(rotateDegree);
-
-        var args =
-            $"-ss {skip.TotalSeconds} -t 0.1 -i \"{file}\" " +
-            "-an -sn " +
-            $"-vf \"scale={width}:{height}:force_original_aspect_ratio=decrease," +
-            $"pad={width}:{height}:(ow-iw)/2:(oh-ih)/2,format=bgr24{rotationStr}\" " +
-            "-f rawvideo -";
-
-        var psi = new ProcessStartInfo
-        {
-            FileName               = "ffmpeg",
-            Arguments              = args,
-            RedirectStandardOutput = true,
-            RedirectStandardError  = true,
-            UseShellExecute        = false,
-            CreateNoWindow         = true
-        };
-
-        var p = new Process { StartInfo = psi };
-        p.Start();
-
-        var needed = bgrBuffer.Length;
-        var read = 0;
-
-        using var stdout = p.StandardOutput.BaseStream;
-
-        while (read < needed)
-        {
-            var r = await stdout.ReadAsync(bgrBuffer, read, needed - read);
-            if (r == 0)
-            {
-                TryKill(p);
-                return false;
-            }
-            read += r;
-        }
-
-        TryKill(p);
-        return true;
-    }
-
-    private static void TryKill(Process p)
-    {
-        try { p.Kill(); } catch { }
-    }
-}

Splitter-UI/Splitter-UI.csproj

@@ -1,37 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-  <PropertyGroup>
-    <OutputType>WinExe</OutputType>
-    <TargetFramework>net10.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-    <LangVersion>latest</LangVersion>
-    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <PlatformTarget>x64</PlatformTarget>
-    <RuntimeIdentifier>win-x64</RuntimeIdentifier>
-    <ApplicationManifest>app.manifest</ApplicationManifest>
-    <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
-    <ApplicationIcon>Assets/splitter.ico</ApplicationIcon>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <AvaloniaResource Include="Assets\**" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <PackageReference Include="Avalonia" Version="12.0.4" />
-    <PackageReference Include="Avalonia.Controls.DataGrid" Version="12.0.0" />
-    <PackageReference Include="Avalonia.Desktop" Version="12.0.4" />
-    <PackageReference Include="Avalonia.Themes.Fluent" Version="12.0.4" />
-    <PackageReference Include="Avalonia.Fonts.Inter" Version="12.0.4" />
-    <PackageReference Include="AvaloniaUI.DiagnosticsSupport" Version="2.2.3">
-      <IncludeAssets Condition="'$(Configuration)' != 'Debug'">None</IncludeAssets>
-      <PrivateAssets Condition="'$(Configuration)' != 'Debug'">All</PrivateAssets>
-    </PackageReference>
-    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.2" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="10.0.9" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\splitter-cli\splitter.csproj" />
-  </ItemGroup>
-</Project>

Splitter-UI/ViewLocator.cs

@@ -1,34 +0,0 @@
-using System.Diagnostics.CodeAnalysis;
-using Avalonia.Controls;
-using Avalonia.Controls.Templates;
-
-namespace Splitter_UI;
-/// <summary>
-/// Given a view model, returns the corresponding view if possible.
-/// </summary>
-[RequiresUnreferencedCode(
-    "Default implementation of ViewLocator involves reflection which may be trimmed away.",
-    Url = "https://docs.avaloniaui.net/docs/concepts/view-locator")]
-public class ViewLocator : IDataTemplate
-{
-    public Control? Build(object? param)
-    {
-        if (param is null)
-            return null;
-
-        var name = param.GetType().FullName!.Replace("ViewModel", "View", StringComparison.Ordinal);
-        var type = Type.GetType(name);
-
-        if (type != null)
-        {
-            return (Control)Activator.CreateInstance(type)!;
-        }
-
-        return new TextBlock { Text = "Not Found: " + name };
-    }
-
-    public bool Match(object? data)
-    {
-        return data is ViewModelBase;
-    }
-}

Splitter-UI/ViewModels/FileListViewModel.cs

@@ -1,59 +0,0 @@
-using System.Collections.ObjectModel;
-using CommunityToolkit.Mvvm.ComponentModel;
-using CommunityToolkit.Mvvm.Input;
-
-namespace Splitter_UI.ViewModels;
-
-public partial class FileListViewModel : ObservableObject
-{
-    private readonly IFileJobFactory _factory;
-    private readonly IAutoDecisionService _autoDecisionService;
-    public ObservableCollection<JobViewModel> Files { get; } = [];
-    public ObservableCollection<JobViewModel> SelectedFiles { get; } = [];
-
-    [ObservableProperty]
-    private JobViewModel? _selected;
-
-    public event Action<JobViewModel?>? SelectedFileChanged;
-
-    public FileListViewModel(IFileJobFactory factory, IAutoDecisionService autoDecisionService)
-    {
-        _factory = factory;
-        _autoDecisionService = autoDecisionService;
-    }
-
-    partial void OnSelectedChanged(JobViewModel? value)
-        => SelectedFileChanged?.Invoke(value);
-
-    [RelayCommand]
-    private void AddFiles(IEnumerable<string> paths)
-    {
-        foreach (var path in paths)
-        {
-            // Probe + auto-detect + thumbnail
-            var job = new SingleJob { InputFile = path };
-            var vm = _factory.Create(job);
-            Files.Add(vm);
-            _autoDecisionService.ApplyAutoDecisions(vm, CancellationToken.None);
-        }
-
-        Selected = Files.LastOrDefault();
-    }
-
-    internal void DeleteSelected()
-    {
-        if (SelectedFiles.Any()) 
-        {
-            var toDelete = SelectedFiles.ToList();
-            foreach (var item in toDelete)
-                Files.Remove(item);
-        }
-        else if ( Selected != null)
-        {
-            var sel = Selected;
-            Files.Remove(sel);
-        }
-
-        Selected = Files.LastOrDefault();
-    }
-}

Splitter-UI/ViewModels/InspectorPaneViewModel.cs

@@ -1,61 +0,0 @@
-using System.Collections.ObjectModel;
-using CommunityToolkit.Mvvm.ComponentModel;
-using CommunityToolkit.Mvvm.Input;
-
-namespace Splitter_UI.ViewModels;
-
-public partial class InspectorPaneViewModel : ObservableObject
-{
-    [ObservableProperty]
-    private JobViewModel? _selected;
-
-    public ObservableCollection<JobViewModel> Files { get; set; } = [];
-
-    public List<string> DetectModes => 
-        [  
-            "face", "body", "none"
-        ];
-
-    [RelayCommand]
-    private void TransformAll()
-    {
-        _ = _main.Start();
-    }
-
-
-    [RelayCommand]
-    private void ApplyOverrides()
-    {
-        if (Selected is null)
-            return;
-
-        foreach (JobViewModel job in Files.Where(x => !ReferenceEquals(x, Selected)))
-            job.CopyFrom(Selected);
-    }
-
-    public IRelayCommand RotateLeftCommand { get; }
-    public IRelayCommand RotateRightCommand { get; }
-
-    private MainViewModel _main = null!;
-
-    public InspectorPaneViewModel()
-    {
-        RotateLeftCommand = new RelayCommand(() => AdjustRotation(-90));
-        RotateRightCommand = new RelayCommand(() => AdjustRotation(+90));
-    }
-
-    public void SetMain(MainViewModel main) => _main = main;
-
-    private void AdjustRotation(int delta)
-    {
-        if ( Selected == null)
-            return;
-
-        var r = Selected.Rotate;
-        r = (r + delta) % 360;
-        if (r < 0) r += 360;
-
-        Selected.Rotate = r;
-    }
-
-}

Splitter-UI/ViewModels/JobViewModel.cs

@@ -1,412 +0,0 @@
-using System.Collections.ObjectModel;
-using System.Collections.Specialized;
-using System.ComponentModel;
-using Avalonia.Media.Imaging;
-using Avalonia.Threading;
-using CommunityToolkit.Mvvm.ComponentModel;
-using CommunityToolkit.Mvvm.Input;
-
-namespace Splitter_UI.ViewModels;
-
-public partial class JobViewModel : ObservableObject
-{
-    private SingleJob Job => _f.Model;
-    private ViewModelForwarder<SingleJob> _f;
-
-    public SingleJob GetJob() => Job;
-
-    [ObservableProperty] private VideoInfo?    _probe;
-    [ObservableProperty] private PreviewData?  _preview = new(null, [], null, new(0.5f, 0.5f), TimeSpan.Zero, null);
-    [ObservableProperty] private Bitmap?       _thumbnail;
-    [ObservableProperty] private double        _sliderLiveValue;
-    [ObservableProperty] private double        _positionSeconds;
-
-    public string InputFile       => Job.InputFile;
-    public double DurationSeconds => Probe?.Duration ?? 0;
-    public double SegmentDuration
-    {
-        get
-        {
-            if (Probe == null || Probe.Duration <= 0)
-                return 58.0;
-
-            var target = Job.OverrideTargetDuration ?? 58.0;
-
-            int segments;
-            double segmentLength;
-
-            if (Job.ForceFixed)
-            {
-                // Fixed chunk size, last one may be shorter
-                segments = (int)Math.Ceiling(Probe.Duration / target);
-                segmentLength = target;
-            }
-            else
-            {
-                // Equalized segments
-                segments = (int)Math.Ceiling(Probe.Duration / target);
-                segmentLength = Probe.Duration / segments;
-            }
-
-            return segmentLength;
-        }
-    }
-
-    public IRelayCommand StepForwardCommand  { get; }
-    public IRelayCommand StepBackwardCommand { get; }
-    public IRelayCommand PlayPreviewCommand  { get; }
-
-    private readonly IThumbnailService             _thumbnails;
-    private readonly DispatcherTimer               _debounceTimer;
-    private readonly Func<string, IObjectTracker>  _trackerFactory;
-    private readonly ILogger                       _log;
-
-    public string FileName => Path.GetFileName(Job.InputFile);
-
-    public string TextDesc => Probe != null 
-        ? $"{Probe.Width}x{Probe.Height}, {TimeSpan.FromSeconds(Probe.Duration).ToString(@"hh\:mm\:ss")}), FPS: {Probe.Fps:F2}, Bitrate: {Probe.Bitrate/1024/1024:F2} MB/s"
-        : "";
-
-    public override string ToString() => $"{FileName}: {TextDesc}";
-
-    public ObservableCollection<ParameterEntry> ParametersList { get; }
-        = new();
-
-    public ObservableCollection<Segment> Segments { get; } = new();
-
-    public string CropText
-    {
-        get => Job.Crop is { } c ? $"{c.width},{c.height}" : "";
-        set
-        {
-            if (string.IsNullOrWhiteSpace(value))
-            {
-                Job.Crop = null;
-            }
-            else
-            {
-                var parts = value.Split(',');
-                if (parts.Length == 2 &&
-                    int.TryParse(parts[0], out var w) &&
-                    int.TryParse(parts[1], out var h))
-                    Job.Crop = (w, h);
-            }
-            OnPropertyChanged();
-        }
-    }
-
-    public string GravitateText
-    {
-        get => Job.GravitateTo is { } p ? $"{p.X:F3},{p.Y:F3}" : "";
-        set
-        {
-            if (string.IsNullOrWhiteSpace(value))
-            {
-                Job.GravitateTo = new Point2f(0.5f, 0.5f);
-            }
-            else
-            {
-                var parts = value.Split(',');
-                if (parts.Length == 2 &&
-                    float.TryParse(parts[0], out var x) &&
-                    float.TryParse(parts[1], out var y))
-                    Job.GravitateTo = new Point2f(x, y);
-            }
-            OnPropertyChanged();
-            OnPropertyChanged(nameof(GravitateTo));
-        }
-    }
-
-    public string PassthroughText
-    {
-        get => string.Join(' ', Job.Passthrough);
-        set
-        {
-            Job.Passthrough = string.IsNullOrWhiteSpace(value)
-                ? Array.Empty<string>()
-                : value.Split(' ', StringSplitOptions.RemoveEmptyEntries);
-            OnPropertyChanged();
-        }
-    }
-
-    public Point2f GravitateTo
-    {
-        get => Job.GravitateTo;
-        set
-        {
-            if (Math.Abs(Job.GravitateTo.X - value.X) < 0.001 && Math.Abs(Job.GravitateTo.Y - value.Y) < 0.001)
-                return;
-
-            Job.GravitateTo = value;
-            OnPropertyChanged();
-            OnPropertyChanged(nameof(GravitateText));
-        }
-    }
-
-    public string? Detect                 { get => Job.Detect;                 set => _f.Forward(value); }
-    public string? Mask                   { get => Job.Mask;                   set => _f.Forward(value); }
-    public string OutputFolder            { get => Job.OutputFolder;           set => _f.Forward(value); }
-    public bool ForceFixed                { get => Job.ForceFixed;             set => _f.Forward(value); }
-    public bool Debug                     { get => Job.Debug;                  set => _f.Forward(value); }
-    public bool Enhance                   { get => Job.Enhance;                set => _f.Forward(value); }
-    public double? OverrideTargetDuration { get => Job.OverrideTargetDuration; set => _f.Forward(value); }
-    public float ScoreThreshold           { get => Job.ScoreThreshold;         set { _f.Forward(value); Task.Run(CreatePreview); } }
-    public float IdentityThreshold        { get => Job.IdentityThreshold;      set { _f.Forward(value); Task.Run(CreatePreview); } }
-    public int? Rotate                    { get => Job.Rotate;                 set { _f.Forward(value); Task.Run(CreatePreview); } }
-    public float DetectAbove              { get => Job.DetectAbove;            set { _f.Forward(value); Task.Run(CreatePreview); } }
-    public ulong? DetectId                { get => Job.DetectId;               set { _f.Forward(value); Task.Run(CreatePreview); } }
-
-    public JobViewModel(SingleJob job, IThumbnailService thumbnails, Func<string, IObjectTracker> trackerFactory, ILogger log)
-    {
-        _f               = new ViewModelForwarder<SingleJob>(job, this.OnPropertyChanged);
-        _thumbnails      = thumbnails;
-        _trackerFactory  = trackerFactory;
-        _log             = log;
-
-        ParametersList.Add(new ParameterEntry("DropoutToleranceFrames"      , ""));
-        ParametersList.Add(new ParameterEntry("EmaFactor"                   , ""));
-        ParametersList.Add(new ParameterEntry("CameraEasing"                , ""));
-        ParametersList.Add(new ParameterEntry("LostFreezeFrames"            , ""));
-        ParametersList.Add(new ParameterEntry("RotationDetectorSampleCount" , ""));
-        ParametersList.Add(new ParameterEntry("RotationDetectorSampleLength", ""));
-        ParametersList.Add(new ParameterEntry("RotationDetectorFrameWidth"  , ""));
-        ParametersList.Add(new ParameterEntry("RotationDetectorFrameHeight" , ""));
-
-        foreach (var entry in ParametersList)
-        {
-            entry.PropertyChanged += OnParameterChanged;
-        }
-
-        PropertyChanged += (sender, e) =>
-        {
-            if (e.PropertyName == nameof(Probe))
-            {
-                if (Segments.Count == 0)
-                    GenerateSegments();
-                OnPropertyChanged(nameof(DurationSeconds));
-            }
-        };
-        ParametersList.CollectionChanged += OnParametersCollectionChanged;
-
-        StepForwardCommand  = new RelayCommand(StepForward);
-        StepBackwardCommand = new RelayCommand(StepBackward);
-        PlayPreviewCommand  = new RelayCommand(PlayPreview);
-
-        _debounceTimer = new DispatcherTimer
-        {
-            Interval = TimeSpan.FromSeconds(1)
-        };
-        _debounceTimer.Tick += DebounceTimerTick;
-    }
-
-    public void GenerateSegments()
-    {
-        Segments.Clear();
-        if (Probe == null || Probe.Duration <= 0)
-            return;
-        var duration = SegmentDuration;
-        var segments = (int)Math.Ceiling(Probe.Duration / duration);
-        for (int i = 0; i < segments; i++)
-        {
-            var start = i * duration;
-            var end   = Math.Min(start + duration, Probe.Duration);
-            Segments.Add(new Segment(start, end));
-        }
-    }
-
-    public void CopyFrom(JobViewModel src)
-    {
-        Job.CopyFrom(src.Job);
-        OnPropertyChanged(string.Empty); // Refresh all properties
-    }
-
-    public async Task CreatePreview()
-    {
-        if ( Probe == null)
-            return;
-        try
-        {
-            var pos = TimeSpan.FromSeconds(PositionSeconds);
-
-            Bitmap? frame;
-            if (Preview?.Frame == null || Preview.Position != pos) 
-                frame = await _thumbnails.CreateThumbnailAsync(Job.InputFile, Probe, pos, Probe.Width, Probe.Height, Job.Rotate);
-            else
-                frame = Preview.Frame;
-            if (  frame == null )
-                return;
-
-            Preview      = new PreviewData(frame, [], null, Job.GravitateTo, pos, Job.Rotate);
-
-            var tracker = _trackerFactory(Job.Detect ?? "");
-            var j = new SingleTask
-            (
-                Job             : Job,
-                Info            : Probe,
-                OutputFileName  : "preview.jpg",
-                SegmentIndex    : 0,
-                TotalSegments   : 1,
-                SegmentStart    : PositionSeconds,
-                SegmentLength   : 1, // 1 second segment for detection
-                ProcessorFactory: _ => throw new NotImplementedException()
-            );
-
-            var (detections, primaryDetection) = tracker.SelectTrackedObject(j, frame.ToMatContinuous(), j.Job.GravitateTo);
-
-            Rect? crop = null;
-            var w = Probe.Width;
-            var h = Probe.Height;
-
-            var cropWidth  = Job.Crop?.width  ?? CommandLine.DefaultW;
-            var cropHeight = Job.Crop?.height ?? CommandLine.DefaultH;
-
-            var p = primaryDetection?.Center ?? new Point2f(w * Job.GravitateTo.X, h * Job.GravitateTo.Y);
-
-            var cx = p.X - cropWidth  / 2f;
-            var cy = p.Y - cropHeight / 2f;
-
-            var r = new Rect(cx, cy, cropWidth, cropHeight);
-
-            crop = ClampCrop(r, w, h);
-
-            Preview = new PreviewData(frame, detections ?? [], crop, Job.GravitateTo, pos, Job.Rotate);
-            OnPropertyChanged(nameof(SegmentDuration));
-        }
-        catch (Exception ex)
-        {
-            _log.LogError($"Error creating preview for {FileName}: {ex.Message}");
-        }
-    }
-
-    private static Rect ClampCrop(Rect r, float w, float h)
-    {
-        var x = r.X;
-        var y = r.Y;
-        var cw = r.Width;
-        var ch = r.Height;
-
-        if (x < 0) x = 0;
-        if (y < 0) y = 0;
-
-        if (x + cw > w) x = w - cw;
-        if (y + ch > h) y = h - ch;
-
-        if (x < 0) x = 0;
-        if (y < 0) y = 0;
-
-        return new Rect(x, y, cw, ch);
-    }
-
-
-    private void OnParameterChanged(object? sender, PropertyChangedEventArgs e)
-    {
-        if (sender is ParameterEntry p && e.PropertyName == nameof(ParameterEntry.Value))
-        {
-            Job.Parameters[p.Key] = p.Value;
-        }
-    }
-
-    private void OnParametersCollectionChanged(object? sender, NotifyCollectionChangedEventArgs e)
-    {
-        if (e.NewItems != null)
-        {
-            foreach (ParameterEntry p in e.NewItems)
-            {
-                Job.Parameters[p.Key] = p.Value;
-                p.PropertyChanged += OnParameterChanged;
-            }
-        }
-
-        if (e.OldItems != null)
-        {
-            foreach (ParameterEntry p in e.OldItems)
-            {
-                Job.Parameters.Remove(p.Key);
-                p.PropertyChanged -= OnParameterChanged;
-            }
-        }
-    }
-
-    private void StepForward()
-    {
-        if (Segments.Count <= 1)
-            return;
-
-        var current = GetCurrentSegment();
-        if ( current < 0 || current >= Segments.Count - 1 )
-            return;
-
-        SliderLiveValue = Segments[current + 1].Start;
-    }
-
-    private void StepBackward()
-    {
-        if (Segments.Count <= 0)
-            return;
-
-        var current = GetCurrentSegment();
-        if (current <= 0)
-        {
-            SliderLiveValue = 0;
-            return;
-        }
-
-        if (SliderLiveValue > Segments[current].Start)
-            SliderLiveValue = Segments[current].Start;
-        else
-            SliderLiveValue = Segments[current - 1].Start;
-    }
-
-    private void PlayPreview()
-    {
-        // Implementation for playing preview
-    }
-
-    private int GetCurrentSegment()
-    {
-        double pos = SliderLiveValue;
-
-        for (int i = 0; i < Segments.Count; i++)
-        {
-            var s = Segments[i];
-            if (pos < s.Start)
-                return i - 1;
-            if (pos == s.Start)
-                return i;
-        }
-
-        return -1;
-    }
-
-    partial void OnSliderLiveValueChanged(double value)
-    {
-        // Restart debounce timer on every slider update
-        _debounceTimer.Stop();
-        _debounceTimer.Start();
-    }
-
-    private void DebounceTimerTick(object? sender, EventArgs e)
-    {
-        _debounceTimer.Stop();
-
-        // Commit the final value
-        PositionSeconds = SliderLiveValue;
-    }
-
-    partial void OnPositionSecondsChanged(double value)
-    {
-        Task.Run(CreatePreview);
-    }
-
-    public async Task<Avalonia.Media.Imaging.Bitmap?> GetThumbnail(double positionSec)
-    {
-        if (Probe == null)
-            return null;
-
-        var pos = TimeSpan.FromSeconds(positionSec);
-        var frame = await _thumbnails.CreateThumbnailAsync(Job.InputFile, Probe, pos, ThumbnailService.ThumbWidth, ThumbnailService.ThumbHeight, Job.Rotate).ConfigureAwait(false);
-        //frame.Save($"c:\\temp\\thmb-{positionSec:N4}.png");
-        return frame;
-    }
-
-}

Splitter-UI/ViewModels/LogPaneViewModel.cs

@@ -1,36 +0,0 @@
-using Avalonia.Threading;
-using CommunityToolkit.Mvvm.ComponentModel;
-using System.Collections.ObjectModel;
-
-namespace Splitter_UI.ViewModels;
-
-public sealed record LogEntry(string Prefix, ConsoleColor Color, string Message);
-
-public partial class LogPaneViewModel : ObservableObject, ILogService
-{
-    public ObservableCollection<LogEntry> Logs { get; } = [];
-
-    public void Log(string prefix, ConsoleColor color, string msg)
-    {
-        Add(new LogEntry(prefix.Replace("[", "").Replace("]", ""), color, msg));
-    }
-
-    private void Add(LogEntry entry)
-    {
-        if (Dispatcher.UIThread.CheckAccess())
-        {
-            AddInternal(entry);
-        }
-        else
-        {
-            Dispatcher.UIThread.Post(() => AddInternal(entry));
-        }
-    }
-
-    private void AddInternal(LogEntry entry)
-    {
-        Logs.Add(entry);
-        if (Logs.Count > 5000)
-            Logs.RemoveAt(0);
-    }
-}

Splitter-UI/ViewModels/MainViewModel.cs

@@ -1,94 +0,0 @@
-using CommunityToolkit.Mvvm.ComponentModel;
-
-namespace Splitter_UI.ViewModels;
-
-public partial class MainViewModel : ViewModelBase
-{
-    public FileListViewModel FileList       { get; }
-    public PreviewPaneViewModel Preview     { get; }
-    public InspectorPaneViewModel Inspector { get; }
-    public StatusBarViewModel StatusBar     { get; }
-    public LogPaneViewModel LogPane         { get; }
-    public ProgressViewModel Progress       { get; }
-    private IJobProcessor _processor = null!;
-
-    [ObservableProperty] private bool _transformMode = false;
-    private ILogger _logger;
-
-    private CancellationTokenSource? _cancellationTokenSource;
-
-    public MainViewModel(
-        FileListViewModel fileListVM,
-        PreviewPaneViewModel ppVM,
-        InspectorPaneViewModel iVM,
-        LogPaneViewModel lpVM,
-        StatusBarViewModel sbVM,
-        ProgressViewModel pVM,
-        IJobProcessor processor,
-        ILogger logger
-        )
-    {
-        FileList   = fileListVM;
-        Preview    = ppVM;
-        Inspector  = iVM;
-        LogPane    = lpVM;
-        StatusBar  = sbVM;
-        Progress   = pVM;
-        _processor = processor;
-        _logger = logger;
-
-        // Wire selection -> preview + inspector
-        FileList.SelectedFileChanged += file =>
-        {
-            Preview.Selected = file;
-            Inspector.Selected = file;
-        };
-
-        Progress.SetMain(this);
-        Inspector.SetMain(this);
-        Inspector.Files = FileList.Files;
-    }
-
-    public void Cancel()
-    {
-        _cancellationTokenSource?.Cancel();
-    }
-
-    public Task Start() => Task.Run(async () =>
-    {
-        _cancellationTokenSource = new CancellationTokenSource();
-        try
-        {
-            StatusBar.StatusText = "Processing…";
-            StatusBar.Percent = 0;
-            TransformMode = true;
-
-            var files = FileList.Files.ToList();
-            var jobs = new List<SingleTask>();
-
-            foreach (var file in files)
-            {
-                var fileJobs = await _processor.GenerateJobs(file.GetJob(), false, file.Segments, _cancellationTokenSource.Token);
-                jobs.AddRange(fileJobs);
-            }
-
-            await _processor.ProcessJobs(jobs, jobs.First().Job.Enhance, _cancellationTokenSource.Token);
-        }
-        catch (Exception ex)
-        {
-            // Handle exception
-            StatusBar.StatusText = "Error occurred…";
-            _logger.LogError($"Error: {ex.Message}");
-            _cancellationTokenSource.Cancel();
-        }
-        finally
-        {
-            StatusBar.StatusText = "Ready…";
-            StatusBar.Percent = 0;
-            TransformMode = false;
-
-            _cancellationTokenSource?.Dispose();
-        }
-    });
-
-}

Splitter-UI/ViewModels/PreviewPaneViewModel.cs

@@ -1,77 +0,0 @@
-using System.ComponentModel;
-using CommunityToolkit.Mvvm.ComponentModel;
-
-namespace Splitter_UI.ViewModels;
-
-public partial class PreviewPaneViewModel : ObservableObject
-{
-    [ObservableProperty]
-    private JobViewModel? _selected;
-
-    public PreviewData? Preview => Selected?.Preview;
-    public Point2f? Sar         => Selected?.Probe?.Sar;
-    public int Rotate           => Selected?.Rotate ?? 0;
-    public Point2f GravitateTo
-    {
-        get => Selected?.GravitateTo ?? new Point2f(0.5f, 0.5f);
-        set
-        {
-            if (Selected == null)
-                return;
-            Selected.GravitateTo = value;
-            OnPropertyChanged(nameof(GravitateTo));
-        }
-    }
-
-    public float DetectAbove
-    {
-        get => Selected?.DetectAbove ?? 0.7f;
-        set
-        {
-            if (Selected == null)
-                return;
-            Selected.DetectAbove = value;
-            OnPropertyChanged(nameof(DetectAbove));
-        }
-    }
-
-    public ulong? TrackedId
-    {
-        get => Selected?.DetectId;
-        set
-        {
-            if (Selected == null)
-                return;
-            Selected.DetectId = value;
-            OnPropertyChanged(nameof(TrackedId));
-        }
-    }
-
-    partial void OnSelectedChanged(JobViewModel? oldValue, JobViewModel? newValue)
-    {
-        if (oldValue != null)
-            oldValue.PropertyChanged -= SelectedPropertyChanged;
-
-        if (newValue != null)
-            newValue.PropertyChanged += SelectedPropertyChanged;
-
-        OnPropertyChanged(nameof(Preview));
-        OnPropertyChanged(nameof(Sar));
-        OnPropertyChanged(nameof(Rotate));
-        OnPropertyChanged(nameof(TrackedId));
-        OnPropertyChanged(nameof(DetectAbove));
-    }
-
-    private void SelectedPropertyChanged(object? sender, PropertyChangedEventArgs e)
-    {
-        if (e.PropertyName == nameof(JobViewModel.Preview))
-            OnPropertyChanged(nameof(Preview));
-
-        if (e.PropertyName == nameof(JobViewModel.Probe))
-        {
-            OnPropertyChanged(nameof(Sar));
-            OnPropertyChanged(nameof(Rotate));
-        }
-    }
-}
-

Splitter-UI/ViewModels/ProgressViewModel.cs

@@ -1,72 +0,0 @@
-using System.Collections.ObjectModel;
-using Avalonia.Threading;
-using CommunityToolkit.Mvvm.ComponentModel;
-using CommunityToolkit.Mvvm.Input;
-
-namespace Splitter_UI.ViewModels;
-
-public record ProgressInfo(string Name, int ProgressLine, double Progress, TimeSpan Eta, double Speed);
-
-public partial class ProgressViewModel : ObservableObject
-{
-    [ObservableProperty] private int _numberOfProcesses = 0;
-    public ObservableCollection<ProgressInfo> Processes { get; } = [];
-
-    private Lock _lock = new();
-
-    private MainViewModel _mainModel = null!;
-
-    [RelayCommand]
-    private void Cancel()
-    {
-        _mainModel.Cancel();
-    }
-
-    public void SetMain(MainViewModel mainModel)
-    {
-        _mainModel = mainModel;
-    }
-
-    public void ClearProgress(string name, int progressLine) => Dispatch(() =>
-    {
-        lock (_lock)
-        {
-            if (progressLine < 0 || progressLine > Processes.Count)
-                return;
-
-            NumberOfProcesses -= 1;
-            Processes[progressLine] = new ProgressInfo("", progressLine, 0, TimeSpan.Zero, 0);
-        }
-    });
-
-    public void DrawProgress(string name, int progressLine, double progress, TimeSpan eta, double speed) => Dispatch(() =>
-    {
-        lock (_lock)
-        {
-            if (progressLine < 0)
-                return;
-
-            while (Processes.Count <= progressLine)
-            {
-                Processes.Add(new ProgressInfo("", Processes.Count, 0, TimeSpan.Zero, 0));
-            }
-
-            if (Processes[progressLine].Name == "")
-                NumberOfProcesses += 1;
-            Processes[progressLine] = new ProgressInfo(name, progressLine, progress, eta, speed);
-        }
-    });
-
-    private void Dispatch(Action action)
-    {
-        if (Dispatcher.UIThread.CheckAccess())
-        {
-            action();
-        }
-        else
-        {
-            Dispatcher.UIThread.Post(() => action());
-        }
-    }
-}
-

Splitter-UI/ViewModels/StatusBarViewModel.cs

@@ -1,13 +0,0 @@
-using CommunityToolkit.Mvvm.ComponentModel;
-
-namespace Splitter_UI.ViewModels;
-
-public partial class StatusBarViewModel : ObservableObject
-{
-    [ObservableProperty]
-    private string _statusText = "Ready";
-
-    [ObservableProperty]
-    private double _percent;
-
-}

Splitter-UI/ViewModels/ViewModelBase.cs

@@ -1,7 +0,0 @@
-using CommunityToolkit.Mvvm.ComponentModel;
-
-namespace Splitter_UI.ViewModels;
-
-public abstract class ViewModelBase : ObservableObject
-{
-}

Splitter-UI/ViewModels/ViewModelForwarder.cs

@@ -1,34 +0,0 @@
-using System.Reflection;
-using System.Runtime.CompilerServices;
-
-namespace Splitter_UI.ViewModels;
-
-internal class ViewModelForwarder<TModel>
-{
-    public readonly TModel Model;
-    private readonly Action<string> _onPropertyChanged;
-
-    public ViewModelForwarder(TModel model, Action<string> onPropertyChanged)
-    {
-        Model = model;
-        _onPropertyChanged = onPropertyChanged;
-    }
-
-    public void Forward<T>(
-        T newValue,
-        [CallerMemberName] string? propertyName = null)
-    {
-        var modelType = typeof(TModel);
-        var prop = modelType.GetProperty(propertyName!, BindingFlags.Public | BindingFlags.Instance);
-        if (prop == null)
-            return;
-
-        var oldValue = (T)prop.GetValue(Model)!;
-
-        if (EqualityComparer<T>.Default.Equals(oldValue, newValue))
-            return;
-
-        prop.SetValue(Model, newValue);
-        _onPropertyChanged(propertyName!);
-    }
-}

Splitter-UI/Views/FileListView.axaml

@@ -1,80 +0,0 @@
-<UserControl
-    xmlns="https://github.com/avaloniaui"
-    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:vm="clr-namespace:Splitter_UI.ViewModels"
-    xmlns:views="clr-namespace:Splitter_UI.Views"
-    xmlns:conv="clr-namespace:Splitter_UI.Converters"
-    x:Class="Splitter_UI.Views.FileListView"
-    x:DataType="vm:FileListViewModel"
-    KeyDown="OnKeyDown"
-    Focusable="True">
-
-    <UserControl.Resources>
-        <conv:ZeroToBoolConverter x:Key="ZeroToBoolConverter"/>
-        <conv:RotationAngleToIconConverter x:Key="RotationAngleToIconConverter"/>
-    </UserControl.Resources>
-
-    <UserControl.Styles>
-        <Style Selector="views|FileListView Border#DropZone">
-            <Setter Property="BorderBrush" Value="Transparent"/>
-            <Setter Property="BorderThickness" Value="0"/>
-        </Style>
-        <Style Selector="views|FileListView[IsDragActive=true] Border#DropZone">
-            <Setter Property="BorderBrush" Value="Red"/>
-            <Setter Property="BorderThickness" Value="2"/>
-        </Style>
-
-    </UserControl.Styles>
-
-    <Border x:Name="DropZone"
-            Background="#1E1E1E"
-            Padding="10"
-            DragDrop.AllowDrop="True"
-            DragDrop.Drop="OnDrop"
-            DragDrop.DragOver="OnDragOver"
-            DragDrop.DragEnter="OnDragEnter"
-            DragDrop.DragLeave="OnDragLeave">
-
-
-        <Grid>
-
-            <!-- Empty message -->
-            <TextBlock Text="Drag files here"
-                       HorizontalAlignment="Center"
-                       VerticalAlignment="Center"
-                       FontSize="20"
-                       Foreground="#666"
-                       IsVisible="{Binding Files.Count, Converter={StaticResource ZeroToBoolConverter}}"/>
-
-            <!-- File list -->
-            <ScrollViewer>
-                <ListBox ItemsSource="{Binding Files}"
-                         SelectedItems="{Binding SelectedFiles}"
-                         SelectedItem="{Binding Selected}"
-                         SelectionMode="Multiple"
-                         BorderThickness="0"
-                         Background="Transparent">
-
-                    <ListBox.ItemsPanel>
-                        <ItemsPanelTemplate>
-                            <WrapPanel Orientation="Horizontal"/>
-                        </ItemsPanelTemplate>
-                    </ListBox.ItemsPanel>
-
-                    <ListBox.Styles>
-                        <Style Selector="ListBoxItem:selected /template/ ContentPresenter">
-                            <Setter Property="Background" Value="#9A9A9A"/>
-                    </Style>
-                    </ListBox.Styles>
-
-                    <ListBox.ItemTemplate>
-                        <DataTemplate x:DataType="vm:JobViewModel">
-                            <views:JobListItemView/>
-                        </DataTemplate>
-                    </ListBox.ItemTemplate>
-
-                </ListBox>
-            </ScrollViewer>
-        </Grid>
-    </Border>
-</UserControl>

Splitter-UI/Views/FileListView.axaml.cs

@@ -1,78 +0,0 @@
-using Avalonia;
-using Avalonia.Controls;
-using Avalonia.Input;
-using Avalonia.Platform.Storage;
-
-namespace Splitter_UI.Views;
-
-public partial class FileListView : UserControl
-{
-    public static readonly StyledProperty<bool> IsDragActiveProperty =
-        AvaloniaProperty.Register<FileListView, bool>(nameof(IsDragActive));
-
-    public bool IsDragActive
-    {
-        get => GetValue(IsDragActiveProperty);
-        set => SetValue(IsDragActiveProperty, value);
-    }
-
-    public FileListView()
-    {
-        InitializeComponent();
-    }
-
-    private void OnKeyDown(object? sender, KeyEventArgs e)
-    {
-        if (e.Key == Key.Delete)
-        {
-            if (DataContext is FileListViewModel vm)
-                vm.DeleteSelected();
-        }
-    }
-    private void OnDragEnter(object? sender, DragEventArgs e)
-    {
-        IsDragActive = true;
-    }
-
-    private void OnDragLeave(object? sender, DragEventArgs e)
-    {
-        IsDragActive = false;
-    }
-
-    private void OnDragOver(object? sender, DragEventArgs e)
-    {
-        // Avalonia 12:
-        // e.Data is IDataObject, but it has NO strongly typed formats.
-        if (e.DataTransfer.Contains(DataFormat.File))
-            e.DragEffects = DragDropEffects.Copy;
-        else
-            e.DragEffects = DragDropEffects.None;
-
-        e.Handled = true;
-    }
-
-    private async void OnDrop(object? sender, DragEventArgs e)
-    {
-        IsDragActive = false;
-
-        if (DataContext is not FileListViewModel vm)
-            return;
-
-        if (!e.DataTransfer.Contains(DataFormat.File))
-            return;
-
-        // Avalonia 12:
-        // This is the ONLY correct way to get dropped files.
-        var items = e.DataTransfer.TryGetFiles();
-        if (items is null)
-            return;
-
-        var paths = items
-            .OfType<IStorageFile>()
-            .Select(f => f.Path.LocalPath)
-            .ToList();
-
-        if (paths.Count > 0)
-            vm.AddFilesCommand.Execute(paths);
-    }
-}

Splitter-UI/Views/InspectorPane.axaml

@@ -1,228 +0,0 @@
-<UserControl
-xmlns="https://github.com/avaloniaui"
-xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-x:Class="Splitter_UI.Views.InspectorPane"
-xmlns:vm="clr-namespace:Splitter_UI.ViewModels"
-x:DataType="vm:InspectorPaneViewModel">
-
-    <Border Background="#252525" Padding="12">
-        <ScrollViewer>
-            <StackPanel Spacing="2">
-
-                <StackPanel Orientation="Horizontal"
-                            HorizontalAlignment="Right"
-                            Spacing="8"
-                            Margin="0,0,10,0">
-
-                    <Button Content="Apply to Selected"
-                            Command="{Binding ApplyOverridesCommand}"/>
-
-                    <Button Content="Transform all"
-                            Background="#AA0000"
-                            Foreground="White"
-                            Command="{Binding TransformAllCommand}"/>
-
-                </StackPanel>
-                
-                <TextBlock Text="Parameters" FontSize="10" Margin="0,0,0,10" FontWeight="Bold"/>
-
-                <!-- InputFile -->
-                <StackPanel Orientation="Vertical" Spacing="8">
-                    <TextBlock Text="{Binding Selected.FileName}" Width="360" Margin="0,0,0,5" FontStyle="Italic"/>
-                    <TextBlock Text="{Binding Selected.TextDesc}" Width="360" FontSize="10" Margin="0,0,0,10" FontWeight="Bold" Foreground="#676767"/>
-                </StackPanel>
-
-                <!-- Rotate -->
-                <StackPanel Orientation="Horizontal" Spacing="8">
-                    <TextBlock Text="Rotate" Width="120"/>
-
-                    <StackPanel Orientation="Horizontal" Spacing="4">
-
-                        <Button Width="24" Height="24"
-                                Padding="0"
-                                Command="{Binding RotateLeftCommand}">
-                            <TextBlock FontFamily="{StaticResource FontAwesome}"
-                                       Text="&#xf2ea;"
-                                       FontSize="12"
-                                       VerticalAlignment="Center"
-                                       HorizontalAlignment="Center"
-                                       Margin="0,-1,0,0"/>
-                        </Button>
-
-                        <Button Width="24" Height="24"
-                                Padding="0"
-                                Command="{Binding RotateRightCommand}">
-                            <TextBlock FontFamily="{StaticResource FontAwesome}"
-                                       Text="&#xf2f9;"
-                                       FontSize="12"
-                                       VerticalAlignment="Center"
-                                       HorizontalAlignment="Center"
-                                       Margin="0,-1,0,0"/>
-                        </Button>
-
-
-                        <!-- Angle display -->
-                        <TextBlock Text="{Binding Selected.Rotate}"
-                                    Width="40"
-                                    HorizontalAlignment="Center"
-                                    VerticalAlignment="Center"/>
-                    </StackPanel>
-                </StackPanel>
-
-                <!-- Mask -->
-                <StackPanel Orientation="Horizontal" Spacing="8">
-                    <TextBlock Text="Mask" Width="120"/>
-                    <TextBox Text="{Binding Selected.Mask}" Width="260"/>
-                </StackPanel>
-
-                <!-- OutputFolder -->
-                <StackPanel Orientation="Horizontal" Spacing="8">
-                    <TextBlock Text="Output Folder" Width="120"/>
-                    <TextBox Text="{Binding Selected.OutputFolder}" Width="260"/>
-                </StackPanel>
-
-                <!-- Crop -->
-                <StackPanel Orientation="Horizontal" Spacing="8">
-                    <TextBlock Text="Crop (w,h)" Width="120"/>
-                    <TextBox Text="{Binding Selected.CropText}" Width="160"/>
-                </StackPanel>
-
-                <!-- GravitateTo -->
-                <StackPanel Orientation="Horizontal" Spacing="8">
-                    <TextBlock Text="GravitateTo" Width="120"/>
-                    <TextBox Text="{Binding Selected.GravitateText}" Width="160"/>
-                </StackPanel>
-
-                <!-- Detect -->
-                <StackPanel Orientation="Horizontal" Spacing="8">
-                    <TextBlock Text="Detect" Width="120"/>
-                    <ComboBox ItemsSource="{Binding DetectModes}"
-                              SelectedItem="{Binding Selected.Detect}"
-                              Width="160"/>
-                </StackPanel>
-
-                <!-- ScoreThreshold -->
-                <StackPanel Orientation="Horizontal" Spacing="8">
-                    <TextBlock Text="Score threshold" Width="120"/>
-
-                    <StackPanel Orientation="Vertical" Spacing="4" Width="260">
-                        <Slider Minimum="0"
-                                Maximum="1"
-                                SmallChange="0.01"
-                                LargeChange="0.1"
-                                TickFrequency="0.05"
-                                IsSnapToTickEnabled="False"
-                                Value="{Binding Selected.ScoreThreshold, Mode=TwoWay}"/>
-
-                        <TextBlock Text="{Binding Selected.ScoreThreshold, StringFormat='0.00'}"
-                                   FontSize="10"
-                                   HorizontalAlignment="Right"/>
-                    </StackPanel>
-                </StackPanel>
-                
-                <!-- ScoreThreshold -->
-                <StackPanel Orientation="Horizontal" Spacing="8">
-                    <TextBlock Text="Identity matching threshold" Width="120"/>
-
-                    <StackPanel Orientation="Vertical" Spacing="4" Width="260">
-                        <Slider Minimum="0"
-                                Maximum="1"
-                                SmallChange="0.01"
-                                LargeChange="0.1"
-                                TickFrequency="0.05"
-                                IsSnapToTickEnabled="False"
-                                Value="{Binding Selected.IdentityThreshold, Mode=TwoWay}"/>
-
-                        <TextBlock Text="{Binding Selected.IdentityThreshold, StringFormat='0.00'}"
-                                   FontSize="10"
-                                   HorizontalAlignment="Right"/>
-                    </StackPanel>
-                </StackPanel>
-
-                <!-- DetectAbove -->
-                <StackPanel Orientation="Horizontal" Spacing="8">
-                    <TextBlock Text="Detect Above" Width="120"/>
-                    <TextBox Text="{Binding Selected.DetectAbove}" Width="160"/>
-                </StackPanel>
-
-                <!-- DetectId -->
-                <StackPanel Orientation="Horizontal" Spacing="8">
-                    <TextBlock Text="Object to track" Width="120"/>
-                    <TextBox Text="{Binding Selected.DetectId}" Width="160"/>
-                </StackPanel>
-
-                <!-- OverrideTargetDuration -->
-                <StackPanel Orientation="Horizontal" Spacing="8">
-                    <TextBlock Text="Target Duration" Width="120"/>
-                    <NumericUpDown Value="{Binding Selected.OverrideTargetDuration}" Width="120"/>
-                </StackPanel>
-
-                <!-- Enhance -->
-                <StackPanel Orientation="Horizontal" Spacing="8">
-                    <CheckBox Content="Enhance resolution x2"
-                              IsChecked="{Binding Selected.Enhance}"/>
-                    <TextBlock Text="(Very slow and not worth it!)" 
-                               Foreground="#FFFF80FF"
-                               FontSize="10" 
-                               Margin="0,12,0,0"/>
-                </StackPanel>
-
-                <!-- ForceFixed -->
-                <CheckBox Content="Force Fixed Duration"
-                          IsChecked="{Binding Selected.ForceFixed}"/>
-
-                <!-- Debug -->
-                <CheckBox Content="Debug Mode"
-                          IsChecked="{Binding Selected.Debug}"/>
-
-                <!-- Parameters dictionary -->
-                <TextBlock Text="Advanced Parameters" FontSize="10" Margin="0,10,0,0" FontWeight="Bold"/>
-
-                <DataGrid ItemsSource="{Binding Selected.ParametersList}"
-                                AutoGenerateColumns="False"
-                                HeadersVisibility="Column"
-                                Margin="0,0,20,0"
-                                Height="160">
-
-                    <DataGrid.Columns>
-
-                        <DataGridTemplateColumn Header="Key" Width="*">
-                            <DataGridTemplateColumn.CellTemplate>
-                                <DataTemplate>
-                                    <TextBlock Text="{Binding Key}"
-                                               FontSize="10"
-                                               TextTrimming="CharacterEllipsis"
-                                               ToolTip.Tip="{Binding Key}">
-                                    </TextBlock>
-                                </DataTemplate>
-                            </DataGridTemplateColumn.CellTemplate>
-                        </DataGridTemplateColumn>
-
-                        <DataGridTemplateColumn Header="Value" Width="2*">
-                            <DataGridTemplateColumn.CellTemplate>
-                                <DataTemplate>
-                                    <TextBlock Text="{Binding Value}"/>
-                                </DataTemplate>
-                            </DataGridTemplateColumn.CellTemplate>
-
-                            <DataGridTemplateColumn.CellEditingTemplate>
-                                <DataTemplate>
-                                    <TextBox Text="{Binding Value, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"/>
-                                </DataTemplate>
-                            </DataGridTemplateColumn.CellEditingTemplate>
-                        </DataGridTemplateColumn>
-
-                    </DataGrid.Columns>
-                </DataGrid>
-
-
-                <!-- Passthrough -->
-                <StackPanel Orientation="Horizontal" Spacing="8">
-                    <TextBlock Text="Passthrough" Width="120"/>
-                    <TextBox Text="{Binding Selected.PassthroughText}" Width="260"/>
-                </StackPanel>
-
-            </StackPanel>
-        </ScrollViewer>
-    </Border>
-</UserControl>

Splitter-UI/Views/InspectorPane.axaml.cs

@@ -1,11 +0,0 @@
-using Avalonia.Controls;
-
-namespace Splitter_UI.Views;
-
-public partial class InspectorPane : UserControl
-{
-    public InspectorPane()
-    {
-        InitializeComponent();
-    }
-}

Splitter-UI/Views/JobListItemView.axaml

@@ -1,50 +0,0 @@
-<UserControl
-    x:Class="Splitter_UI.Views.JobListItemView"
-    xmlns="https://github.com/avaloniaui"
-    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:vm="clr-namespace:Splitter_UI.ViewModels"
-    xmlns:conv="clr-namespace:Splitter_UI.Converters"
-    x:DataType="vm:JobViewModel">
-
-    <UserControl.Resources>
-        <conv:RotationAngleToIconConverter x:Key="RotationAngleToIconConverter"/>
-        <conv:ActionToIconConverter x:Key="ActionToIconConverter"/>
-    </UserControl.Resources>
-
-    <Border Margin="0"
-            Padding="0"
-            CornerRadius="4"
-            Background="#2A2A2A">
-
-        <StackPanel MinWidth="160" MaxWidth="160">
-
-            <Border Width="160" Height="90" ClipToBounds="True">
-                <Grid>
-                    <Image Source="{Binding Thumbnail}"
-                           Stretch="UniformToFill"
-                           HorizontalAlignment="Center"
-                           VerticalAlignment="Center"/>
-
-                    <TextBlock FontFamily="{StaticResource FontAwesome}"
-                               Text="{Binding Rotate, Converter={StaticResource ActionToIconConverter}}"
-                               FontSize="12"
-                               HorizontalAlignment="Right"
-                               Foreground="LimeGreen"/>
-
-                    <TextBlock FontFamily="{StaticResource FontAwesome}"
-                               Text="{Binding Rotate, Converter={StaticResource RotationAngleToIconConverter}}"
-                               FontSize="12"
-                               HorizontalAlignment="Left"
-                               Foreground="LimeGreen"/>
-                </Grid>
-            </Border>
-
-            <TextBlock Text="{Binding FileName}"
-                       TextWrapping="Wrap"
-                       Margin="0,6,0,0"
-                       FontSize="10"/>
-
-        </StackPanel>
-
-    </Border>
-</UserControl>

Splitter-UI/Views/JobListItemView.axaml.cs

@@ -1,12 +0,0 @@
-using Avalonia.Controls;
-
-namespace Splitter_UI.Views;
-
-public partial class JobListItemView : UserControl
-{
-    public JobListItemView()
-    {
-        InitializeComponent();
-    }
-}
-

Splitter-UI/Views/LogPane.axaml

@@ -1,34 +0,0 @@
-<UserControl
-    xmlns="https://github.com/avaloniaui"
-    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    x:Class="Splitter_UI.Views.LogPane"
-    xmlns:conv="clr-namespace:Splitter_UI.Converters"
-    xmlns:vm="clr-namespace:Splitter_UI.ViewModels"
-    x:DataType="vm:LogPaneViewModel">
-
-<UserControl.Resources>
-    <conv:ConsoleColorToBrushConverter x:Key="ConsoleColorToBrushConverter"/>
-</UserControl.Resources>
-
-    <Border Background="#111" Padding="8">
-        <ScrollViewer x:Name="Scroller">
-            <ItemsControl ItemsSource="{Binding Logs}">
-                <ItemsControl.ItemTemplate>
-                    <DataTemplate x:DataType="vm:LogEntry">
-                        <StackPanel Orientation="Horizontal">
-                            <TextBlock Text="[" FontFamily="Consolas" FontSize="12"/>
-                            <TextBlock Text="{Binding Prefix}"
-                                       FontFamily="Consolas"
-                                       FontSize="12"
-                                       Foreground="{Binding Color, Converter={StaticResource ConsoleColorToBrushConverter}}"/>
-                            <TextBlock Text="] " FontFamily="Consolas" FontSize="12"/>
-                            <TextBlock Text="{Binding Message}"
-                                       FontFamily="Consolas"
-                                       FontSize="12"/>
-                        </StackPanel>
-                    </DataTemplate>
-                </ItemsControl.ItemTemplate>
-            </ItemsControl>
-        </ScrollViewer>
-    </Border>
-</UserControl>

Splitter-UI/Views/LogPane.axaml.cs

@@ -1,31 +0,0 @@
-using Avalonia.Controls;
-using Avalonia.Threading;
-
-namespace Splitter_UI.Views;
-
-public partial class LogPane : UserControl
-{
-    public LogPane()
-    {
-        InitializeComponent();
-
-        // When DataContext changes, subscribe to collection changes
-        this.DataContextChanged += (_, _) =>
-        {
-            if (DataContext is LogPaneViewModel vm)
-            {
-                vm.Logs.CollectionChanged += (_, _) => ScrollToEnd();
-            }
-        };
-    }
-
-    private void ScrollToEnd()
-    {
-        // Must run after layout pass
-        Dispatcher.UIThread.Post(() =>
-        {
-            if (Scroller != null)
-                Scroller.ScrollToEnd();
-        }, DispatcherPriority.Background);
-    }
-}

Splitter-UI/Views/MainWindow.axaml

@@ -1,57 +0,0 @@
-<Window
-    xmlns="https://github.com/avaloniaui"
-    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:views="clr-namespace:Splitter_UI.Views"
-    xmlns:vm="clr-namespace:Splitter_UI.ViewModels"
-    xmlns:conv="clr-namespace:Splitter_UI.Converters"
-    x:Class="Splitter_UI.Views.MainWindow"
-    x:DataType="vm:MainViewModel"
-    x:Name="Root"
-    Width="1800"
-    Height="870"
-    Title="Splitter UI"
-    Icon="avares://Splitter-UI/Assets/splitter.png">
-
-    <Window.Resources>
-        <conv:BoolInvertConverter x:Key="BoolInvertConverter"/>
-    </Window.Resources>
-
-    <DockPanel>
-
-        <!-- Status Bar -->
-        <views:StatusBarView DockPanel.Dock="Bottom"
-                             DataContext="{Binding StatusBar}" />
-
-        <Grid ColumnDefinitions="220,Auto,*,430"
-              IsVisible="{Binding TransformMode, Converter={StaticResource BoolInvertConverter}}">
-
-            <!-- File List -->
-            <views:FileListView Grid.Column="0"
-                                DataContext="{Binding FileList}" />
-
-            <!-- Splitter -->
-            <GridSplitter Grid.Column="1"
-                          Width="6"
-                          Background="#404040"
-                          ResizeDirection="Columns"
-                          ResizeBehavior="PreviousAndNext"
-                          ShowsPreview="True" />
-
-            <!-- Preview -->
-            <views:PreviewPane Grid.Column="2"
-                               DataContext="{Binding Preview}" />
-
-            <!-- Inspector -->
-            <views:InspectorPane Grid.Column="3"
-                                 DataContext="{Binding Inspector}" />
-
-        </Grid>
-
-        <Grid ColumnDefinitions="*"
-              IsVisible="{Binding TransformMode}">
-            <views:ProgressView DataContext="{Binding Progress}"/>
-        </Grid>
-
-    </DockPanel>
-</Window>
-

Splitter-UI/Views/MainWindow.axaml.cs

@@ -1,10 +0,0 @@
-namespace Splitter_UI.Views;
-
-public partial class MainWindow : Avalonia.Controls.Window
-{
-    public MainViewModel Data { get; } = null!; // set by DI
-    public MainWindow()
-    {
-        InitializeComponent();
-    }
-}

Splitter-UI/Views/PreviewCanvas.cs

@@ -1,670 +0,0 @@
-using System.ComponentModel;
-using System.Globalization;
-using Avalonia;
-using Avalonia.Controls;
-using Avalonia.Input;
-using Avalonia.Media;
-using Avalonia.Threading;
-
-namespace Splitter_UI.Views;
-
-public sealed class PreviewCanvas : Control
-{
-    public static readonly StyledProperty<PreviewData?> PreviewProperty =
-        AvaloniaProperty.Register<PreviewCanvas, PreviewData?>(nameof(Preview));
-    public static readonly StyledProperty<Point2f?> SarProperty =
-        AvaloniaProperty.Register<PreviewCanvas, Point2f?>(nameof(Sar));
-    public static readonly StyledProperty<int> RotateAngleProperty =
-        AvaloniaProperty.Register<PreviewCanvas, int>(nameof(RotateAngle));
-    public static readonly StyledProperty<Point2f> GravitateToProperty =
-        AvaloniaProperty.Register<PreviewCanvas, Point2f>(nameof(GravitateTo));
-    public static readonly StyledProperty<float> DetectAboveProperty =
-        AvaloniaProperty.Register<PreviewCanvas, float>(nameof(DetectAbove), 0.2f);
-    public static readonly StyledProperty<ulong?> DetectIdProperty =
-        AvaloniaProperty.Register<PreviewCanvas, ulong?>(nameof(DetectId));
-
-    public PreviewData? Preview
-    {
-        get => GetValue(PreviewProperty);
-        set => SetValue(PreviewProperty, value);
-    }
-
-    public Point2f? Sar
-    {
-        get => GetValue(SarProperty);
-        set => SetValue(SarProperty, value);
-    }
-
-    public int RotateAngle
-    {
-        get => GetValue(RotateAngleProperty);
-        set => SetValue(RotateAngleProperty, value);
-    }
-
-    // GravitateTo is normalized (0..1)
-    public Point2f GravitateTo
-    {
-        get => GetValue(GravitateToProperty);
-        set => SetValue(GravitateToProperty, value);
-    }
-
-    public ulong? DetectId
-    {
-        get => GetValue(DetectIdProperty);
-        set => SetValue(DetectIdProperty, value);
-    }
-
-    // DetectAbove is normalized (0..1) from top
-    public float DetectAbove
-    {
-        get => GetValue(DetectAboveProperty);
-        set => SetValue(DetectAboveProperty, value);
-    }
-
-    private bool           _draggingGravitate;
-    private Avalonia.Point _dragStartCanvas;
-    private Point2f        _dragStartValue;
-
-    private bool           _draggingDetectAbove;
-    private double         _dragStartDetectAbove; // normalized 0..1
-
-    static PreviewCanvas()
-    {
-        PreviewProperty.Changed.AddClassHandler<PreviewCanvas>(
-            (canvas, args) =>
-                canvas.OnPreviewChanged(args.OldValue as PreviewData,
-                                        args.NewValue as PreviewData));
-    }
-
-    public PreviewCanvas()
-    {
-        PointerPressed  += OnPointerPressed;
-        PointerMoved    += OnPointerMoved;
-        PointerReleased += OnPointerReleased;
-    }
-
-    private void OnPreviewChanged(PreviewData? oldValue, PreviewData? newValue)
-    {
-        if (oldValue is INotifyPropertyChanged oldNotify)
-            oldNotify.PropertyChanged -= PreviewPropertyChanged;
-
-        if (newValue is INotifyPropertyChanged newNotify)
-            newNotify.PropertyChanged += PreviewPropertyChanged;
-
-        Dispatcher.UIThread.Post(InvalidateVisual, DispatcherPriority.Render);
-    }
-
-    private void PreviewPropertyChanged(object? sender, PropertyChangedEventArgs e)
-    {
-        if (e.PropertyName == nameof(PreviewData.Frame) ||
-            e.PropertyName == nameof(PreviewData.DetectedBoxes) ||
-            e.PropertyName == nameof(PreviewData.CropRect))
-        {
-            Dispatcher.UIThread.Post(InvalidateVisual, DispatcherPriority.Render);
-        }
-    }
-
-    protected override Size MeasureOverride(Size availableSize) => availableSize;
-    protected override Size ArrangeOverride(Size finalSize) => finalSize;
-
-    // ------------------------------------------------------------
-    // Unified transform helpers
-    // ------------------------------------------------------------
-
-    private (double X, double Y) TransformPoint(
-        double x, double y,
-        double rawW, double rawH,
-        double offsetX, double offsetY,
-        double scale,
-        int rotate,
-        double pixelAspect)
-    {
-        switch (rotate)
-        {
-            case 90:
-                (x, y) = (rawH - y, x);
-                break;
-            case 180:
-                x = rawW - x;
-                y = rawH - y;
-                break;
-            case 270:
-                (x, y) = (y, rawW - x);
-                break;
-        }
-
-        if (rotate == 0 || rotate == 180)
-            x *= pixelAspect;
-        else
-            y *= pixelAspect;
-
-        var sx = offsetX + x * scale;
-        var sy = offsetY + y * scale;
-
-        return (sx, sy);
-    }
-
-    private Rect TransformRect(
-        double x, double y, double w, double h,
-        double rawW, double rawH,
-        double offsetX, double offsetY,
-        double scale,
-        int rotate,
-        double pixelAspect)
-    {
-        switch (rotate)
-        {
-            case 90:
-                (x, y) = (rawH - (y + h), x);
-                (w, h) = (h, w);
-                break;
-
-            case 180:
-                x = rawW - (x + w);
-                y = rawH - (y + h);
-                break;
-
-            case 270:
-                (x, y) = (y, rawW - (x + w));
-                (w, h) = (h, w);
-                break;
-        }
-
-        if (rotate == 0 || rotate == 180)
-        {
-            x *= pixelAspect;
-            w *= pixelAspect;
-        }
-        else
-        {
-            y *= pixelAspect;
-            h *= pixelAspect;
-        }
-
-        return new Rect(
-            offsetX + x * scale,
-            offsetY + y * scale,
-            w * scale,
-            h * scale);
-    }
-
-    private void GetAspects(
-        PreviewData preview,
-        out int rawW,
-        out int rawH,
-        out int rotate,
-        out float pixelAspect,
-        out double scale,
-        out double offsetX,
-        out double offsetY)
-    {
-        rawW = preview.Frame!.PixelSize.Width;
-        rawH = preview.Frame.PixelSize.Height;
-        rotate = RotateAngle;
-
-        var sar = Sar ?? new Point2f(1, 1);
-        pixelAspect = sar.X / sar.Y;
-
-        var dispW = Bounds.Width;
-        var dispH = Bounds.Height;
-
-        double displayW, displayH;
-        if (rotate == 0 || rotate == 180)
-        {
-            displayW = rawW * pixelAspect;
-            displayH = rawH;
-        }
-        else
-        {
-            displayW = rawW;
-            displayH = rawH * pixelAspect;
-        }
-
-        scale = Math.Min(dispW / displayW, dispH / displayH);
-        offsetX = (dispW - displayW * scale) / 2;
-        offsetY = (dispH - displayH * scale) / 2;
-    }
-
-    // ------------------------------------------------------------
-    // Hit test for gravitate point (normalized)
-    // ------------------------------------------------------------
-
-    private bool HitGravitate(Avalonia.Point p, out Point2f value)
-    {
-        value = default;
-
-        var preview = Preview;
-        if (preview?.Frame is null)
-            return false;
-
-        var g = GravitateTo;
-
-        int rawW, rawH, rotate;
-        float pixelAspect;
-        double scale, offsetX, offsetY;
-        GetAspects(preview, out rawW, out rawH, out rotate, out pixelAspect, out scale, out offsetX, out offsetY);
-
-        double px = g.X * rawW;
-        double py = g.Y * rawH;
-
-        var (cx, cy) = TransformPoint(
-            px, py,
-            rawW, rawH,
-            offsetX, offsetY,
-            scale,
-            rotate,
-            pixelAspect);
-
-        const double radius = 10;
-        var hit = (p.X - cx) * (p.X - cx) + (p.Y - cy) * (p.Y - cy) <= radius * radius;
-
-        if (hit)
-            value = g;
-
-        return hit;
-    }
-
-    // ------------------------------------------------------------
-    // Hit test for DetectAbove knob (normalized)
-    // ------------------------------------------------------------
-
-    private bool HitDetectAbove(Avalonia.Point p, out double value)
-    {
-        value = default;
-
-        var preview = Preview;
-        if (preview?.Frame is null)
-            return false;
-
-        int rawW, rawH, rotate;
-        float pixelAspect;
-        double scale, offsetX, offsetY;
-        GetAspects(preview, out rawW, out rawH, out rotate, out pixelAspect, out scale, out offsetX, out offsetY);
-
-        var da = DetectAbove;
-        var py = da * rawH;
-        var px = rawW / 2.0;
-
-        var (cx, cy) = TransformPoint(
-            px, py,
-            rawW, rawH,
-            offsetX, offsetY,
-            scale,
-            rotate,
-            pixelAspect);
-
-        const double radius = 10;
-        var hit = (p.X - cx) * (p.X - cx) + (p.Y - cy) * (p.Y - cy) <= radius * radius;
-
-        if (hit)
-            value = da;
-
-        return hit;
-    }
-
-    // ------------------------------------------------------------
-    // Hit test for detected boxes
-    // ------------------------------------------------------------
-    private bool HitDetectedBox(Avalonia.Point p, out ulong? value)
-    {
-        value = null;
-
-        var preview = Preview;
-        if (preview?.Frame is null)
-            return false;
-
-        int rawW, rawH, rotate;
-        float pixelAspect;
-        double scale, offsetX, offsetY;
-        GetAspects(preview, out rawW, out rawH, out rotate, out pixelAspect, out scale, out offsetX, out offsetY);
-
-        var frame = preview.Frame;
-        foreach (var box in preview.DetectedBoxes)
-        {
-            var rect = TransformRect(
-                box.Box.X, box.Box.Y, box.Box.Width, box.Box.Height,
-                frame.PixelSize.Width, frame.PixelSize.Height,
-                offsetX, offsetY, scale,
-                RotateAngle,
-                Sar?.X / Sar?.Y ?? 1);
-
-            if (rect.Contains(p))
-            {
-                value = box.Id;
-                return true;
-            }
-        }
-
-        return false;
-    }
-
-    // ------------------------------------------------------------
-    // Pointer events
-    // ------------------------------------------------------------
-
-    private void OnPointerPressed(object? sender, PointerPressedEventArgs e)
-    {
-        var p = e.GetPosition(this);
-
-        if (HitGravitate(p, out var g))
-        {
-            _draggingGravitate = true;
-            _dragStartCanvas = p;
-            _dragStartValue = g; // normalized
-            e.Pointer.Capture(this);
-            return;
-        }
-
-        if (HitDetectAbove(p, out var da))
-        {
-            _draggingDetectAbove = true;
-            _dragStartCanvas = p;
-            _dragStartDetectAbove = da; // normalized
-            e.Pointer.Capture(this);
-            return;
-        }
-
-        if (HitDetectedBox(p, out var id))
-        {
-            DetectId = id;
-        }
-    }
-
-    private void OnPointerMoved(object? sender, PointerEventArgs e)
-    {
-        var preview = Preview;
-        if (preview?.Frame is null)
-            return;
-
-        var p = e.GetPosition(this);
-        var dxCanvas = p.X - _dragStartCanvas.X;
-        var dyCanvas = p.Y - _dragStartCanvas.Y;
-
-        int rawW, rawH, rotate;
-        float pixelAspect;
-        double scale, offsetX, offsetY;
-        GetAspects(preview, out rawW, out rawH, out rotate, out pixelAspect, out scale, out offsetX, out offsetY);
-
-        var dx = dxCanvas / scale;
-        var dy = dyCanvas / scale;
-
-        if (rotate == 0 || rotate == 180)
-            dx /= pixelAspect;
-        else
-            dy /= pixelAspect;
-
-        if (_draggingGravitate)
-        {
-            var gx = _dragStartValue.X * rawW + dx;
-            var gy = _dragStartValue.Y * rawH + dy;
-
-            switch (rotate)
-            {
-                case 90:
-                    (gx, gy) = (gy, rawH - gx);
-                    break;
-                case 180:
-                    gx = rawW - gx;
-                    gy = rawH - gy;
-                    break;
-                case 270:
-                    (gx, gy) = (rawW - gy, gx);
-                    break;
-            }
-
-            var nx = (float)(gx / rawW);
-            var ny = (float)(gy / rawH);
-
-            if (nx < 0) nx = 0;
-            if (ny < 0) ny = 0;
-            if (nx > 1) nx = 1;
-            if (ny > 1) ny = 1;
-
-            GravitateTo = new Point2f(nx, ny);
-        }
-        else if (_draggingDetectAbove)
-        {
-            var gx = rawW / 2.0;
-            var gy = _dragStartDetectAbove * rawH + dy;
-
-            switch (rotate)
-            {
-                case 90:
-                    (gx, gy) = (gy, rawH - gx);
-                    break;
-                case 180:
-                    gx = rawW - gx;
-                    gy = rawH - gy;
-                    break;
-                case 270:
-                    (gx, gy) = (rawW - gy, gx);
-                    break;
-            }
-
-            var ny = gy / rawH;
-            if (ny < 0) ny = 0;
-            if (ny > 1) ny = 1;
-
-            DetectAbove = (float)ny;
-        }
-        else
-        {
-            return;
-        }
-
-        Dispatcher.UIThread.Post(InvalidateVisual, DispatcherPriority.Render);
-    }
-
-    private void OnPointerReleased(object? sender, PointerReleasedEventArgs e)
-    {
-        if (_draggingGravitate || _draggingDetectAbove)
-        {
-            _draggingGravitate = false;
-            _draggingDetectAbove = false;
-            e.Pointer.Capture(null);
-        }
-    }
-
-    // ------------------------------------------------------------
-    // Overlay renderers
-    // ------------------------------------------------------------
-
-    private void RenderCropRectangle(
-        DrawingContext context,
-        PreviewData preview,
-        double rawW, double rawH,
-        double offsetX, double offsetY,
-        double scale,
-        int rotate,
-        double pixelAspect)
-    {
-        if (preview.CropRect is not { } crop)
-            return;
-
-        var rr = TransformRect(
-            crop.X, crop.Y, crop.Width, crop.Height,
-            rawW, rawH,
-            offsetX, offsetY,
-            scale,
-            rotate,
-            pixelAspect);
-
-        var pen = new Pen(Brushes.Yellow, 2);
-        context.DrawRectangle(null, pen, rr);
-    }
-
-    private void RenderGravitateTo(
-        DrawingContext context,
-        PreviewData preview,
-        double rawW, double rawH,
-        double offsetX, double offsetY,
-        double scale,
-        int rotate,
-        double pixelAspect)
-    {
-        var g = GravitateTo;
-
-        var px = g.X * rawW;
-        var py = g.Y * rawH;
-
-        var (sx, sy) = TransformPoint(
-            px, py,
-            rawW, rawH,
-            offsetX, offsetY,
-            scale,
-            rotate,
-            pixelAspect);
-
-        const double radius = 10;
-
-        var circle = new EllipseGeometry(
-            new Rect(sx - radius, sy - radius, radius * 2, radius * 2));
-
-        var pen = new Pen(Brushes.Yellow, 2);
-        var brush = Brushes.Yellow;
-
-        context.DrawGeometry(brush, pen, circle);
-    }
-
-    private void RenderDetectedBoxes(
-        DrawingContext context,
-        PreviewData preview,
-        double rawW, double rawH,
-        double offsetX, double offsetY,
-        double scale,
-        int rotate,
-        double pixelAspect)
-    {
-        if (preview.DetectedBoxes is not { Count: > 0 })
-            return;
-
-        var pen = new Pen(Brushes.Lime, 2);
-        var selectedPen = new Pen(Brushes.Magenta, 2);
-
-        var detected = preview.DetectedBoxes.ToList();
-
-        foreach (var r in detected)
-        {
-            var rr = TransformRect(
-                r.Box.X, r.Box.Y, r.Box.Width, r.Box.Height,
-                rawW, rawH,
-                offsetX, offsetY,
-                scale,
-                rotate,
-                pixelAspect);
-
-            context.DrawRectangle(null, r.Id == DetectId ? selectedPen : pen, rr);
-            context.DrawText(
-                new FormattedText($"ID: {r.Id}", CultureInfo.CurrentCulture, FlowDirection.LeftToRight, Typeface.Default, 12, r.Id == DetectId ? Brushes.Magenta : Brushes.Lime),
-                new Avalonia.Point(rr.X + 5, rr.Y + 5));
-        }
-    }
-
-    private void RenderDetectAbove(
-        DrawingContext context,
-        PreviewData preview,
-        double rawW, double rawH,
-        double offsetX, double offsetY,
-        double scale,
-        int rotate,
-        double pixelAspect)
-    {
-        var da = DetectAbove;
-        var rawY = da * rawH;
-
-        var (x1, y1) = TransformPoint(
-            0, rawY,
-            rawW, rawH,
-            offsetX, offsetY,
-            scale,
-            rotate,
-            pixelAspect);
-
-        var (x2, y2) = TransformPoint(
-            rawW, rawY,
-            rawW, rawH,
-            offsetX, offsetY,
-            scale,
-            rotate,
-            pixelAspect);
-
-        var pen = new Pen(Brushes.Lime, 2);
-        context.DrawLine(pen, new Avalonia.Point(x1, y1), new Avalonia.Point(x2, y2));
-
-        const double radius = 10;
-        var (kx, ky) = TransformPoint(
-            rawW / 2.0, rawY,
-            rawW, rawH,
-            offsetX, offsetY,
-            scale,
-            rotate,
-            pixelAspect);
-
-        var knob = new EllipseGeometry(
-            new Rect(kx - radius, ky - radius, radius * 2, radius * 2));
-
-        var knobPen = new Pen(Brushes.Lime, 2);
-        var knobBrush = Brushes.Lime;
-
-        context.DrawGeometry(knobBrush, knobPen, knob);
-    }
-
-    // ------------------------------------------------------------
-    // Main Render
-    // ------------------------------------------------------------
-
-    public override void Render(DrawingContext context)
-    {
-        var preview = Preview;
-        if (preview?.Frame is null)
-            return;
-
-        var frame = preview.Frame;
-        var rawW = frame.PixelSize.Width;
-        var rawH = frame.PixelSize.Height;
-
-        var dispW = Bounds.Width;
-        var dispH = Bounds.Height;
-
-        if (dispW <= 0 || dispH <= 0)
-            return;
-
-        var rotate = RotateAngle;
-
-        var sar = Sar ?? new Point2f(1, 1);
-        var sarX = sar.X <= 0 ? 1 : sar.X;
-        var sarY = sar.Y <= 0 ? 1 : sar.Y;
-        var pixelAspect = sarX / sarY;
-
-        double displayW, displayH;
-
-        if (rotate == 0 || rotate == 180)
-        {
-            displayW = rawW * pixelAspect;
-            displayH = rawH;
-        }
-        else
-        {
-            displayW = rawW;
-            displayH = rawH * pixelAspect;
-        }
-
-        var scale = Math.Min(dispW / displayW, dispH / displayH);
-
-        var scaledW = displayW * scale;
-        var scaledH = displayH * scale;
-
-        var offsetX = (dispW - scaledW) / 2;
-        var offsetY = (dispH - scaledH) / 2;
-
-        context.DrawImage(
-            frame,
-            new Rect(0, 0, rawW, rawH),
-            new Rect(offsetX, offsetY, scaledW, scaledH));
-
-        RenderDetectedBoxes(context, preview, rawW, rawH, offsetX, offsetY, scale, rotate, pixelAspect);
-        RenderCropRectangle(context, preview, rawW, rawH, offsetX, offsetY, scale, rotate, pixelAspect);
-        RenderGravitateTo(context, preview, rawW, rawH, offsetX, offsetY, scale, rotate, pixelAspect);
-        RenderDetectAbove(context, preview, rawW, rawH, offsetX, offsetY, scale, rotate, pixelAspect);
-    }
-}

Splitter-UI/Views/PreviewPane.axaml

@@ -1,80 +0,0 @@
-<UserControl
-    xmlns="https://github.com/avaloniaui"
-    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:vm="clr-namespace:Splitter_UI.ViewModels"
-    xmlns:local="clr-namespace:Splitter_UI.Views"
-    xmlns:controls="clr-namespace:Splitter_UI.Controls"
-    x:Class="Splitter_UI.Views.PreviewPane"
-    x:DataType="vm:PreviewPaneViewModel">
-
-    <Border Background="#202020" Padding="10">
-        <Grid RowDefinitions="*,Auto,Auto">
-
-            <local:PreviewCanvas
-                Grid.Row="0"
-                Preview="{Binding Preview}"
-                Sar="{Binding Sar}"
-                RotateAngle="{Binding Rotate}"
-                GravitateTo="{Binding GravitateTo, Mode=TwoWay}"
-                DetectAbove="{Binding DetectAbove, Mode=TwoWay}"
-                DetectId="{Binding Selected.DetectId, Mode=TwoWay}"
-                />
-
-            <Grid Grid.Row="1"
-                  ColumnDefinitions="Auto"
-                  Margin="0,10,0,0">
-                <Button Grid.Column="1"
-                        HorizontalAlignment="Left"
-                        Width="24" Height="24"
-                        Padding="0"
-                        Margin="0,0,5,0"
-                        Command="{Binding Selected.PlayPreviewCommand}">
-                    <TextBlock FontFamily="{StaticResource FontAwesome}"
-                               Text="&#xf04b;"
-                               FontSize="12"
-                               VerticalAlignment="Center"
-                               HorizontalAlignment="Center" />
-                </Button>
-
-            </Grid>
-
-            <Grid Grid.Row="2"
-                  ColumnDefinitions="Auto,*,Auto"
-                  Margin="0,10,0,0">
-
-                <Button Grid.Column="0"
-                        HorizontalAlignment="Left"
-                        Width="24" Height="24"
-                        Padding="0"
-                        Margin="0,0,5,0"
-                        Command="{Binding Selected.StepBackwardCommand}">
-                    <TextBlock FontFamily="{StaticResource FontAwesome}"
-                               Text="&#xf048;"
-                               FontSize="12"
-                               VerticalAlignment="Center"
-                               HorizontalAlignment="Center" />
-                </Button>
-
-                <controls:TimelinePreviewSlider Grid.Column="1"
-                    ViewModel="{Binding Selected}"
-                    Margin="5,0,5,0" />
-
-                <Button Grid.Column="2"
-                        HorizontalAlignment="Right"
-                        Width="24" Height="24"
-                        Padding="0"
-                        Margin="5,0,0,0"
-                        Command="{Binding Selected.StepForwardCommand}">
-                    <TextBlock FontFamily="{StaticResource FontAwesome}"
-                               Text="&#xf051;"
-                               FontSize="12"
-                               VerticalAlignment="Center"
-                               HorizontalAlignment="Center" />
-                </Button>
-
-            </Grid>
-
-        </Grid>
-    </Border>
-</UserControl>
-

Splitter-UI/Views/PreviewPane.axaml.cs

@@ -1,12 +0,0 @@
-using Avalonia.Controls;
-
-namespace Splitter_UI.Views;
-
-public partial class PreviewPane : UserControl
-{
-    public PreviewPane()
-    {
-        InitializeComponent();
-    }
-
-}

Splitter-UI/Views/ProgressView.axaml

@@ -1,63 +0,0 @@
-<UserControl
-    x:Class="Splitter_UI.Views.ProgressView"
-    xmlns="https://github.com/avaloniaui"
-    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:vm="clr-namespace:Splitter_UI.ViewModels"
-    x:DataType="vm:ProgressViewModel">
-
-    <Grid RowDefinitions="*,Auto" Background="#111">
-
-        <!-- Processes list -->
-        <ItemsControl Grid.Row="0" ItemsSource="{Binding Processes}">
-            <ItemsControl.ItemTemplate>
-                <DataTemplate x:DataType="vm:ProgressInfo">
-                    <Grid ColumnDefinitions="2*,3*,Auto,Auto"
-                          Margin="0,2">
-
-                        <TextBlock Grid.Column="0"
-                                   Text="{Binding Name}"
-                                   VerticalAlignment="Center"
-                                   FontSize="12"/>
-
-                        <ProgressBar Grid.Column="1"
-                                     Height="12"
-                                     Minimum="0"
-                                     Maximum="1"
-                                     Value="{Binding Progress}"
-                                     Margin="8,0"/>
-
-                        <TextBlock Grid.Column="2"
-                                   Width="70"
-                                   Text="{Binding Eta, StringFormat={}{0:hh\\:mm\\:ss}}"
-                                   VerticalAlignment="Center"
-                                   Margin="12,0"
-                                   FontSize="12"/>
-
-                        <TextBlock Grid.Column="3"
-                                   Width="70"
-                                   Text="{Binding Speed, StringFormat={}{0:0.00}}"
-                                   VerticalAlignment="Center"
-                                   Margin="12,0"
-                                   FontSize="12"/>
-
-                    </Grid>
-                </DataTemplate>
-            </ItemsControl.ItemTemplate>
-        </ItemsControl>
-
-        <!-- Bottom-right Cancel button -->
-        <StackPanel Grid.Row="1"
-                    Orientation="Horizontal"
-                    HorizontalAlignment="Right"
-                    Margin="0,12,0,0">
-
-            <Button Content="Cancel"
-                    Background="#700000"
-                    Foreground="White"
-                    Padding="12,6"
-                    Margin="0,0,10,10"
-                    Command="{Binding CancelCommand}"/>
-        </StackPanel>
-
-    </Grid>
-</UserControl>

Splitter-UI/Views/ProgressView.axaml.cs

@@ -1,12 +0,0 @@
-using Avalonia.Controls;
-
-namespace Splitter_UI.Views;
-
-public partial class ProgressView : UserControl
-{
-    public ProgressView()
-    {
-        InitializeComponent();
-    }
-}
-

Splitter-UI/Views/StatusBarView.axaml

@@ -1,24 +0,0 @@
-<UserControl
-    xmlns="https://github.com/avaloniaui"
-    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    x:Class="Splitter_UI.Views.StatusBarView"
-    xmlns:vm="clr-namespace:Splitter_UI.ViewModels"
-    x:DataType="vm:StatusBarViewModel">
-
-    <Border Padding="4" Background="{DynamicResource ThemeBackgroundBrush}">
-        <Grid ColumnDefinitions="*,Auto,Auto" ColumnSpacing="8">
-            <TextBlock Grid.Column="0"
-                       VerticalAlignment="Center"
-                       Text="{Binding StatusText}" />
-
-            <ProgressBar Grid.Column="1"
-                         Width="200"
-                         Height="16"
-                         Minimum="0"
-                         Maximum="1"
-                         VerticalAlignment="Center"
-                         Value="{Binding Percent}" />
-
-        </Grid>
-    </Border>
-</UserControl>

Splitter-UI/Views/StatusBarView.axaml.cs

@@ -1,11 +0,0 @@
-using Avalonia.Controls;
-
-namespace Splitter_UI.Views;
-
-public partial class StatusBarView : UserControl
-{
-    public StatusBarView()
-    {
-        InitializeComponent();
-    }
-}

Splitter-UI/app.manifest

@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
-  <!-- This manifest is used on Windows only.
-       Don't remove it as it might cause problems with window transparency and embedded controls.
-       For more details visit https://learn.microsoft.com/en-us/windows/win32/sbscs/application-manifests -->
-  <assemblyIdentity version="1.0.0.0" name="Splitter_UI.Desktop"/>
-
-  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
-    <application>
-      <!-- A list of the Windows versions that this application has been tested on
-           and is designed to work with. Uncomment the appropriate elements
-           and Windows will automatically select the most compatible environment. -->
-
-      <!-- Windows 10 -->
-      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />
-    </application>
-  </compatibility>
-</assembly>

splitter-cli/CameraController.cs

@@ -1,4 +1,6 @@
-namespace splitter.algo;
+using OpenCvSharp;
+
+namespace splitter;
 
 public enum TrackState
 {
@@ -58,7 +60,7 @@ public sealed class CameraController
         _kalman.Reset(_cameraCenter);
     }
 
-    private Point2f DefaultCenter => _cmd.GravitateTo;
+    private Point2f DefaultCenter => _cmd.GravitateTo ?? new Point2f(_videoWidth / 2f, _videoHeight / 2f);
 
     public int LostFrames         => _lostFrames;
     public Point2f CameraCenter   => _cameraCenter;
@@ -68,15 +70,15 @@ public sealed class CameraController
     public Point2f? ObjectCenter  => _objectCenter;
     public Rect Roi => _roi;
 
-    public void Update(DetectedPerson? primary)
+    public void Update((Rect box, Point2f center)? primary)
     {
         Rect?    objectBox    = null;
         Point2f? objectCenter = null;
 
         if (primary.HasValue)
         {
-            objectCenter = primary.Value.Center;
+            objectCenter = primary.Value.center;
-            objectBox = primary.Value.Box;
+            objectBox = primary.Value.box;
         }
 
         // ---------------------------------------------------------
@@ -95,7 +97,7 @@ public sealed class CameraController
             _dropoutCounter = 0;
         }
 
-        var isLost = !objectCenter.HasValue;
+        bool isLost = !objectCenter.HasValue;
 
         // LOST / REACQUIRE STATE MACHINE
         if (isLost)
@@ -147,7 +149,7 @@ public sealed class CameraController
         {
             smoothedCenter = _kalman.Update(objectCenter);
 
-            var driftEasing = 0.01f;
+            float driftEasing = 0.01f;
             var fallbackCenter = new Point2f(_videoWidth / 2f, _videoHeight / 2f);
 
             _cameraCenter = new Point2f(

splitter-cli/CommandLine.cs

@@ -1,14 +1,52 @@
 using System.Globalization;
-using splitter.util;
 
 namespace splitter;
 
+public class SingleJob
+{
+    public string                     InputFile              { get; set; } = null!;
+    public string                     OutputFolder           { get; set; } = null!;
+    public (int width, int height)?   Crop                   { get; set; }
+    public Point2f?                   GravitateTo            { get; set; }
+    public string?                    Mask                   { get; set; }
+    public bool                       Debug                  { get; set; }
+    public string?                    Detect                 { get; set; }
+    public double?                    OverrideTargetDuration { get; set; }
+    public string[]                   Passthrough            { get; set; } = [];
+    public bool                       PlainText              { get; set; }
+    public bool                       EstimateOnly           { get; set; }
+    public bool                       ForceFixed             { get; set; }
+    public bool                       SingleThreaded         { get; set; }
+    public int?                       Rotate                 { get; set; }
+    public bool                       RotateAuto             { get; set; }
+    public Dictionary<string, string> Parameters             { get; set; } = [];
+
+    public void Override<T>(ref T member, string name)
+    {
+        if (!Parameters.TryGetValue(name, out var raw))
+            return;
+
+        try
+        {
+            // Convert.ChangeType handles int, float, double, etc.
+            var converted = (T)Convert.ChangeType(
+            raw,
+            typeof(T),
+            CultureInfo.InvariantCulture
+        );
+
+            member = converted;
+        }
+        catch
+        {
+            Console.WriteLine($"Invalid value for parameter '{name}': {raw}");
+        }
+    }
+
+}
+
 public sealed class CommandLine
 {
-    // Default vertical Full HD for YouTube Shorts
-    public const int DefaultW = 607;
-    public const int DefaultH = 1080;
-
     public SingleJob Master { get; } = new SingleJob();
     public SingleJob[] Jobs { get; }
 
@@ -74,10 +112,6 @@ public sealed class CommandLine
             {
                 Master.Rotate = 90;
             }
-            else if (arg == "--enhance")
-            {
-                Master.Enhance = true;
-            }
             else if (arg.StartsWith("--rotate="))
             {
                 var val = arg.Substring("--rotate=".Length);
@@ -86,34 +120,10 @@ public sealed class CommandLine
                 else
                     throw new FormatException($"Invalid --rotate value: {val}");
             }
-            else if (arg.StartsWith("--detect-id="))
-            {
-                var val = arg.Substring("--detect-id=".Length);
-                if (ulong.TryParse(val, out var detectId))
-                    Master.DetectId = detectId;
-                else
-                    throw new FormatException($"Invalid --detect-id value: {val}");
-            }
             else if (arg.StartsWith("--crop="))
             {
                 Master.Crop = ParseCrop(arg.Substring("--crop=".Length));
             }
-            else if (arg.StartsWith("--detect-above="))
-            {
-                var val = arg.Substring("--detect-above=".Length);
-                if (float.TryParse(val, NumberStyles.Float, CultureInfo.InvariantCulture, out var detectAbove) && detectAbove >= 0.0f && detectAbove <= 1.0f)
-                    Master.DetectAbove = detectAbove;
-                else
-                    Master.DetectAbove = 0.7f;
-            }
-            else if (arg.StartsWith("--score-threshold="))
-            {
-                var val = arg.Substring("--score-threshold=".Length);
-                if (float.TryParse(val, NumberStyles.Float, CultureInfo.InvariantCulture, out var scoreThreshold) && scoreThreshold >= 0.0f && scoreThreshold <= 1.0f)
-                    Master.ScoreThreshold = scoreThreshold;
-                else
-                    Master.ScoreThreshold = 0.25f;
-            }
             else if (arg == "--crop")
             {
                 Master.Crop = ParseCrop("");
@@ -172,11 +182,24 @@ public sealed class CommandLine
 
         var files = inputFiles.SelectMany(x => FileMaskExpander.Expand(x));
 
-        Jobs = files.Select(x =>
+        Jobs = files.Select(x => new SingleJob
         {
-            var job = new SingleJob { InputFile = x };
+            InputFile              = x,
-            Master.CopyTo(job);
+            OutputFolder           = Master.OutputFolder,
-            return job;
+            Crop                   = Master.Crop,
+            GravitateTo            = Master.GravitateTo,
+            Mask                   = Master.Mask,
+            Debug                  = Master.Debug,
+            Detect                 = Master.Detect,
+            OverrideTargetDuration = Master.OverrideTargetDuration,
+            Passthrough            = Master.Passthrough,
+            PlainText              = Master.PlainText,
+            EstimateOnly           = Master.EstimateOnly,
+            ForceFixed             = Master.ForceFixed,
+            SingleThreaded         = Master.SingleThreaded,
+            Rotate                 = Master.Rotate,
+            RotateAuto             = Master.RotateAuto,
+            Parameters             = new Dictionary<string, string>(Master.Parameters)
         }).ToArray();
 
         if ( Jobs.Length == 0)
@@ -227,31 +250,35 @@ public sealed class CommandLine
         return key.Length > 0;
     }
 
-    private static Point2f ParseGravitate(string value)
+    private static Point2f? ParseGravitate(string value)
     {
         // Expected format: "<x>:<y>"
         var parts = value.Split(':');
         if (parts.Length != 2)
-            return new Point2f(0.5f, 0.5f);
+            return null;
 
         if (!float.TryParse(parts[0], NumberStyles.Float, CultureInfo.InvariantCulture, out var x))
-            return new Point2f(0.5f, 0.5f);
+            return null;
 
         if (!float.TryParse(parts[1], NumberStyles.Float, CultureInfo.InvariantCulture, out var y))
-            return new Point2f(0.5f, 0.5f);
+            return null;
 
         // Normalized range check (0.0–1.0)
         if (x < 0f || x > 1f || y < 0f || y > 1f)
-            return new Point2f(0.5f, 0.5f);
+            return null;
 
         return new Point2f(x, y);
     }
 
     private static (int width, int height)? ParseCrop(string v)
     {
+        // Default vertical Full HD for YouTube Shorts
+        const int defaultW = 607;
+        const int defaultH = 1080;
+
         // Empty or whitespace → default crop
         if (string.IsNullOrWhiteSpace(v))
-            return (DefaultW, DefaultH);
+            return (defaultW, defaultH);
 
         var s = v.Trim().ToLowerInvariant();
 
@@ -343,9 +370,6 @@ Options:
                          Last segment may be shorter.
                          Default: OFF
 
-  --enhance              Enable video enhancement.
-                         Increases output resolution x4 Using RealBasicVSR_x4 model.
-
   --rotate=<degrees>     Rotate video by specified degrees (90, 180, 270).
                          Useful for videos with incorrect orientation metadata.
 
@@ -362,14 +386,6 @@ Options:
   --detect=<name>        Object detector to use for tracking.
                          Values: face (UltraFace), body (YoloOnnx, default), none (no tracking, just a center)
 
-  --detect-above=<0-1>   Face or human detectors should only report detections if their upper bound starts below this threshold. 
-                         This is a value between 0.0 and 1.0 mapped to 0..Height.
-
-  --detect-id=<hex>      Object ID to track. This is a hexadecimal string that identifies a specific face or 
-                         person to track across segments. This is useful when you want to consistently track the same person 
-                         across all segments of a video, even if there are multiple people present.
-                         The ID can be obtained when running with --debug or from the debug overlay.
-
   --gravitate=<x:y>      Gravitate towards a specific point (x, y) in the video frame when tracking.
                          Coordinates are normalized (0.0 to 1.0).
                          Example: --gravitate=0.2:0.5 (gravitate towards left-center)

splitter-cli/DebugOverlay.cs

@@ -1,35 +0,0 @@
-namespace splitter;
-
-public static class DebugOverlay
-{
-    public static void DrawDebug(
-        Mat frame,
-        List<DetectedPerson> objects,
-        CameraController camera,
-        KalmanTracker kalman)
-    {
-        if (camera.ObjectBox.HasValue)
-        {
-            var fb = camera.ObjectBox.Value;
-            Cv2.Rectangle(frame, fb, Scalar.LimeGreen, 2);
-        }
-
-        Cv2.Circle(frame,
-            new Point((int)camera.SmoothedCenter.X, (int)camera.SmoothedCenter.Y),
-            6, Scalar.LimeGreen, -1);
-
-        Cv2.Rectangle(frame, camera.Roi,
-            camera.ObjectCenter.HasValue ? Scalar.Yellow : Scalar.Red, 3);
-
-        DrawText(frame, $"Faces: {objects.Count}", 20, 40, Scalar.White);
-        DrawText(frame, $"LostFrames: {camera.LostFrames}", 20, 70, Scalar.White);
-        DrawText(frame, $"Noise: {kalman.CurrentNoise:F3}", 20, 130, Scalar.White);
-        DrawText(frame, $"Camera: {camera.CameraCenter.X:F1},{camera.CameraCenter.Y:F1}", 20, 160, Scalar.White);
-    }
-
-    public static void DrawText(Mat img, string text, int x, int y, Scalar color)
-    {
-        Cv2.PutText(img, text, new Point(x, y),
-            HersheyFonts.HersheySimplex, 0.6, color, 2);
-    }
-}

splitter-cli/FileMaskExpander.cs

@@ -1,4 +1,4 @@
-namespace splitter.util;
+namespace splitter;
 
 public static class FileMaskExpander
 {
@@ -8,8 +8,8 @@ public static class FileMaskExpander
         if (!HasMask(input))
             return [Path.GetFullPath(input)];
 
-        var directory = Path.GetDirectoryName(input) ?? Directory.GetCurrentDirectory();
+        string directory = Path.GetDirectoryName(input) ?? Directory.GetCurrentDirectory();
-        var pattern   = Path.GetFileName(input);
+        string pattern   = Path.GetFileName(input);
 
         if (string.IsNullOrEmpty(directory))
             directory = Directory.GetCurrentDirectory();

splitter-cli/FrameRotationDetector.cs

@@ -1,4 +1,6 @@
-namespace splitter.probe;
+using OpenCvSharp;
+
+namespace splitter;
 
 public sealed class FrameRotationDetector
 {
@@ -16,17 +18,17 @@ public sealed class FrameRotationDetector
 
     public FrameRotationDetector(int width = 320, int height = 180, int bins = 36)
     {
-        _w     = width;
+        _w = width;
-        _h     = height;
+        _h = height;
-        _bins  = bins;
+        _bins = bins;
 
-        _gray  = new Mat(height, width, MatType.CV_8UC1);
+        _gray = new Mat(height, width, MatType.CV_8UC1);
-        _gx    = new Mat(height, width, MatType.CV_32F);
+        _gx = new Mat(height, width, MatType.CV_32F);
-        _gy    = new Mat(height, width, MatType.CV_32F);
+        _gy = new Mat(height, width, MatType.CV_32F);
-        _mag   = new Mat(height, width, MatType.CV_32F);
+        _mag = new Mat(height, width, MatType.CV_32F);
         _angle = new Mat(height, width, MatType.CV_32F);
 
-        _hist  = new float[bins];   // allocated once
+        _hist = new float[bins];   // allocated once
     }
 
     public int GetRotation(Mat frame)
@@ -42,28 +44,28 @@ public sealed class FrameRotationDetector
         Cv2.CartToPolar(_gx, _gy, _mag, _angle, angleInDegrees: true);
 
         // 4. Clear histogram
-        for (var i = 0; i < _bins; i++)
+        for (int i = 0; i < _bins; i++)
             _hist[i] = 0;
 
-        var binSize = 180f / _bins;
+        float binSize = 180f / _bins;
 
         unsafe
         {
-            var anglePtr = (float*)_angle.Data;
+            float* anglePtr = (float*)_angle.Data;
-            var magPtr   = (float*)_mag.Data;
+            float* magPtr   = (float*)_mag.Data;
 
-            var total = _w * _h;
+            int total = _w * _h;
 
-            for (var i = 0; i < total; i++)
+            for (int i = 0; i < total; i++)
             {
-                var m = magPtr[i];
+                float m = magPtr[i];
                 if (m < 5f) continue; // ignore weak gradients
 
-                var a = anglePtr[i];
+                float a = anglePtr[i];
                 if (a < 0) a += 360f;
                 a = a % 180f;
 
-                var bin = (int)(a / binSize);
+                int bin = (int)(a / binSize);
                 if (bin < 0) bin = 0;
                 if (bin >= _bins) bin = _bins - 1;
 
@@ -73,12 +75,12 @@ public sealed class FrameRotationDetector
 
         // 5. Energy around 0° vs 90°
         float e0 = 0, e90 = 0;
-        var window = 3;
+        int window = 3;
 
-        var bin0  = 0;
+        int bin0  = 0;
-        var bin90 = _bins / 2;
+        int bin90 = _bins / 2;
 
-        for (var i = -window; i <= window; i++)
+        for (int i = -window; i <= window; i++)
         {
             e0 += _hist[Wrap(bin0 + i)];
             e90 += _hist[Wrap(bin90 + i)];

splitter-cli/GlobalUsing.cs

@@ -1,5 +0,0 @@
-global using OpenCvSharp;
-global using splitter.algo;
-global using splitter.probe;
-global using splitter.tui;
-

splitter-cli/IJobProcessor.cs

@@ -1,7 +0,0 @@
-namespace splitter;
-
-public interface IJobProcessor
-{
-    Task<List<SingleTask>> GenerateJobs(SingleJob job, bool estimateOnly, IReadOnlyCollection<Segment> predefinedSegments, CancellationToken token);
-    Task<bool> ProcessJobs(List<SingleTask> tasks, bool singleThreaded, CancellationToken token);
-}

splitter-cli/ILogger.cs

@@ -1,8 +1,8 @@
-namespace splitter.tui;
+namespace splitter;
 
 public interface ILogger
 {
-    void ClearProgress(string name, int progressLine);
+    void ClearProgress(int progressLevel);
     void DrawProgress(string name, int progressLine, double progress, TimeSpan eta, double speed);
     void Log(string prefix, ConsoleColor color, string msg);
     

splitter-cli/IObjectDetector.cs

@@ -0,0 +1,8 @@
+using OpenCvSharp;
+
+namespace splitter;
+
+public interface IObjectDetector : IDisposable
+{
+    List<(Rect box, Point2f center)> DetectAll(Mat frameCont);
+}

splitter-cli/ISegmentProcessor.cs

@@ -0,0 +1,6 @@
+namespace splitter;
+
+public interface ISegmentProcessor
+{
+    Task ProcessSegment( SingleTask job );
+}

splitter-cli/JobProcessor.cs

@@ -1,237 +0,0 @@
-using System.Collections.Concurrent;
-using System.Diagnostics;
-
-namespace splitter;
-
-public class JobProcessor(ILogger logger) : LoggingBase(logger, 0), IJobProcessor
-{
-    public async Task<List<SingleTask>> GenerateJobs(SingleJob job, bool estimateOnly, IReadOnlyCollection<Segment> predefinedSegments, CancellationToken token)
-    {
-        var baseName = Path.GetFileNameWithoutExtension(job.InputFile);
-
-        if (!File.Exists(job.InputFile))
-        {
-            LogError($"{baseName}: Input file not found.");
-            return [];
-        }
-
-        if (!Directory.Exists(job.OutputFolder))
-            Directory.CreateDirectory(job.OutputFolder);
-
-        if (token.IsCancellationRequested)
-            return [];
-
-        var info = await ProbeVideo.Probe(job.InputFile, job.RotateAuto, token);
-
-        if (token.IsCancellationRequested)
-            return [];
-
-        if (info.Duration <= 0)
-        {
-            LogError($"{baseName}: Could not read duration.");
-            return [];
-        }
-
-        var target = job.OverrideTargetDuration ?? 58.0;
-
-        int segments;
-        double segmentLength;
-
-        if (job.ForceFixed)
-        {
-            // Fixed chunk size, last one may be shorter
-            segments = (int)Math.Ceiling(info.Duration / target);
-            segmentLength = target;
-        }
-        else
-        {
-            // Equalized segments
-            segments = (int)Math.Ceiling(info.Duration / target);
-            segmentLength = info.Duration / segments;
-        }
-
-        LogInfo($"{baseName}: Duration {info.Duration:F2}s, {info.Width}x{info.Height} @ {info.Fps:F3}fps {info.Bitrate / 1024:F0}kbps," +
-            $" Target duration: {target:F2}s Segments: {segments} segment length: {segmentLength:F2}s {(job.ForceFixed ? " fixed" : "")}");
-
-        if (estimateOnly)
-            return [];
-
-        Func<int, ISegmentProcessor> processorFactory;
-        if (job.Crop != null)
-        {
-            processorFactory = i =>
-            {
-                IObjectDetector detector = job.Detect switch
-                {
-                    "face" => new UltraFaceDetector(_logger),
-                    "body" => new YoloV10ObjectDetector(_logger),
-                    "none" => new DummyDetector(),
-                    _      => throw new InvalidOperationException($"Unknown detector: {job.Detect}")
-                };
-                var osnet = new OSNetEmbeddingExtractor();
-                var tracker = new ObjectTracker(detector, osnet);
-                return new TrackingSplitter(i, tracker, job, _logger);
-            };
-        }
-        else
-        {
-            processorFactory = i => new SimpleSplitter(i, _logger);
-        }
-
-        var segmentsToUse = predefinedSegments;
-
-        if (predefinedSegments.Count == 0)
-        {
-            segmentsToUse = Enumerable.Range(0, segments).Select(i => new Segment
-            (
-                Start: i * segmentLength,
-                End  : (i == segments - 1)
-                        ? Math.Max(0.1, info.Duration)
-                        : (i + 1) * segmentLength
-            )).ToList();
-        }
-
-        return segmentsToUse.Select((s, i) => new SingleTask
-            (
-                Job             : job,
-                Info            : info,
-                OutputFileName  : BuildOutputFileName(job, i),
-                SegmentIndex    : i,
-                TotalSegments   : predefinedSegments.Count,
-                SegmentStart    : s.Start,
-                SegmentLength   : s.End - s.Start,
-                ProcessorFactory: processorFactory
-            )
-        ).ToList();
-    }
-
-    public async Task<bool> ProcessJobs(List<SingleTask> tasks, bool singleThreaded, CancellationToken token)
-    {
-
-        if (singleThreaded)
-        {
-            LogInfo("Starting single-threaded splitting...");
-            await RunSingleThreaded(tasks, token);
-        }
-        else
-        {
-            LogInfo("Starting multi-threaded splitting...");
-            await RunMultiThreaded(tasks, token);
-        }
-
-        LogInfo("Done.");
-        return true;
-    }
-
-    private void LogProgress(double progress, TimeSpan eta, double speed) => _logger.DrawProgress("Total", 0, progress, eta, speed);
-
-    // -----------------------------
-    // ffprobe
-    // -----------------------------
-
-    // -----------------------------
-    // Multi-threaded splitting
-    // -----------------------------
-
-    private async Task RunMultiThreaded(List<SingleTask> jobs, CancellationToken token)
-    {
-        LogProgress(0.0, TimeSpan.Zero, 0.0);
-
-        var maxDegree = Math.Max(1, Environment.ProcessorCount / 2);
-
-        using var sem = new SemaphoreSlim(maxDegree);
-        var tasks = new List<Task>();
-
-        // Slot pool: 0..maxDegree-1
-        var freeSlots = new ConcurrentQueue<int>(Enumerable.Range(0, maxDegree));
-
-        var totalSegments     = jobs.Count;
-        var processedSegments = 0;
-        var totalDuration     = jobs.Sum(j => j.SegmentLength);
-        var sw                = Stopwatch.StartNew();
-
-        foreach (var job in jobs)
-        {
-            await sem.WaitAsync(token);
-
-            tasks.Add(Task.Run(async () =>
-            {
-                var slot = -1;
-
-                try
-                {
-                    // Acquire a slot ID
-                    while (!freeSlots.TryDequeue(out slot))
-                    {
-                        if ( token.IsCancellationRequested)
-                            return; 
-                        await Task.Yield();
-                    }
-                    await ProcessSegment(job, slot + 1, token);
-
-                    var processed = Interlocked.Increment(ref processedSegments);
-                    var elapsed   = sw.Elapsed;
-                    var eta       = TimeSpan.FromTicks(elapsed.Ticks * (totalSegments - processed) / processed);
-                    var speed     = (processed * totalDuration) / elapsed.TotalSeconds;
-                    LogProgress((double)processed / totalSegments, eta, speed);
-                }
-                finally
-                {
-                    // Return slot to pool
-                    if (slot >= 0)
-                        freeSlots.Enqueue(slot);
-
-                    sem.Release();
-                }
-            }));
-        }
-
-        await Task.WhenAll(tasks);
-    }
-
-
-    // -----------------------------
-    // Single-threaded splitting
-    // -----------------------------
-
-    private async Task RunSingleThreaded(List<SingleTask> jobs, CancellationToken token)
-    {
-        foreach (var job in jobs)
-        {
-            await ProcessSegment(job, 0, token);
-        }
-
-    }
-
-    private async Task ProcessSegment(SingleTask t, int slot, CancellationToken token)
-    {
-        var processor = t.ProcessorFactory(slot);
-        try
-        {
-            await processor.ProcessSegment(t, token);
-        }
-        finally
-        {
-            if (processor is IDisposable disposable)
-                disposable.Dispose();
-        }
-    }
-
-    private static string BuildOutputFileName(SingleJob job, int index)
-    {
-        string fileName;
-
-        fileName = Path.GetFileName(job.Mask ?? "[NAME]_seg[NN].[EXT]")
-            .Replace("[NAME]", Path.GetFileNameWithoutExtension(job.InputFile))
-            .Replace("[N]", index.ToString())
-            .Replace("[NN]", index.ToString("00"))
-            .Replace("[NNN]", index.ToString("000"))
-            .Replace("[NNNN]", index.ToString("0000"))
-            .Replace("[EXT]", Path.GetExtension(job.InputFile).TrimStart('.'))
-            ;
-
-        return Path.Combine(job.OutputFolder, fileName);
-    }
-
-
-}

splitter-cli/KalmanTracker.cs

@@ -1,4 +1,4 @@
-namespace splitter.algo;
+namespace splitter;
 
 public sealed class KalmanTracker
 {
@@ -35,8 +35,8 @@ public sealed class KalmanTracker
         _state[3] = 0;
 
         // Large initial uncertainty
-        for (var i = 0; i < 4; i++)
+        for (int i = 0; i < 4; i++)
-            for (var j = 0; j < 4; j++)
+            for (int j = 0; j < 4; j++)
                 _p[i, j] = (i == j) ? 1f : 0f;
     }
 
@@ -63,16 +63,16 @@ public sealed class KalmanTracker
             var z = measurement.Value;
 
             // Innovation y = z - Hx
-            var yx = z.X - _state[0];
+            float yx = z.X - _state[0];
-            var yy = z.Y - _state[1];
+            float yy = z.Y - _state[1];
 
             // Innovation covariance S = P + R
-            var Sx = _p[0, 0] + _r;
+            float Sx = _p[0, 0] + _r;
-            var Sy = _p[1, 1] + _r;
+            float Sy = _p[1, 1] + _r;
 
             // Kalman gain K = P / S
-            var Kx0 = _p[0, 0] / Sx;
+            float Kx0 = _p[0, 0] / Sx;
-            var Kx1 = _p[1, 1] / Sy;
+            float Kx1 = _p[1, 1] / Sy;
 
             // Update state
             _state[0] += Kx0 * yx;

splitter-cli/LoggingBase.cs

@@ -1,11 +1,7 @@
-namespace splitter.tui;
+namespace splitter;
 
-public abstract class LoggingBase(ILogger logger, int _progressLine)
+public abstract class LoggingBase(ILogger _logger, int _progressLine)
 {
-#pragma warning disable IDE1006 // Naming Styles
-    protected ILogger _logger = logger;
-#pragma warning restore IDE1006 // Naming Styles
-
     protected void Log(string level, ConsoleColor color, string message)
         => _logger.Log(level, color, message);
 
@@ -21,6 +17,6 @@ public abstract class LoggingBase(ILogger logger, int _progressLine)
     protected void DrawProgress(string name, double percent, TimeSpan eta, double fps)
         => _logger.DrawProgress(name, _progressLine, percent, eta, fps);
 
-    protected void ClearProgress(string name)
+    protected void ClearProgress()
-        => _logger.ClearProgress(name,_progressLine);
+        => _logger.ClearProgress(_progressLine);
 }

splitter-cli/Point2f.cs

@@ -0,0 +1,13 @@
+namespace splitter;
+
+public struct Point2f
+{
+    public float X;
+    public float Y;
+
+    public Point2f(float x, float y)
+    {
+        X = x;
+        Y = y;
+    }
+}

splitter-cli/ProbeVideo.cs

@@ -0,0 +1,108 @@
+using System.Diagnostics;
+using System.Globalization;
+
+namespace splitter;
+
+public record VideoInfo(
+    double Duration,
+    int Width,
+    int Height,
+    double Fps,
+    double Bitrate,
+    int Rotation = 0
+);
+
+public static class ProbeVideo
+{
+    public static async Task<VideoInfo> Probe(SingleJob job)
+    {
+        var info = ProbeSize(job.InputFile);
+        if ( job.RotateAuto)
+        {
+            var rotation = await ProbeRotation(job, info.Duration);
+            info = info with { Rotation = rotation };
+        }
+
+        return info;
+    }
+
+    private static async Task<int> ProbeRotation(SingleJob job, double duration)
+    {
+        var rotation = await new VideoRotationSampler(job).DetectRotationAsync(job.InputFile, duration);
+        return rotation;
+    }
+
+    private static VideoInfo ProbeSize(string inputFile)
+    {
+        var args =
+        "-v error " +
+        "-select_streams v:0 " +
+        "-show_entries format=duration " +
+        "-show_entries stream=width,height,avg_frame_rate,bit_rate " +
+        "-of default=noprint_wrappers=1:nokey=0 " +   // <-- IMPORTANT: include keys
+        $"\"{inputFile}\"";
+
+        var psi = new ProcessStartInfo
+        {
+            FileName               = "ffprobe",
+            Arguments              = args,
+            RedirectStandardOutput = true,
+            RedirectStandardError  = true,
+            UseShellExecute        = false,
+            CreateNoWindow         = true
+        };
+
+        using var p = new Process { StartInfo = psi };
+        p.Start();
+
+        var duration = -1.0;
+        var width    = 0;
+        var height   = 0;
+        var fps      = 0.0;
+        var bitrate  = 0.0;
+
+        while (!p.StandardOutput.EndOfStream)
+        {
+            var line = p.StandardOutput.ReadLine()?.Trim();
+            if (string.IsNullOrWhiteSpace(line))
+                continue;
+
+            if (line.StartsWith("duration="))
+            {
+                var v = line.Substring("duration=".Length);
+                double.TryParse(v, NumberStyles.Any, CultureInfo.InvariantCulture, out duration);
+            }
+            else if (line.StartsWith("width="))
+            {
+                var v = line.Substring("width=".Length);
+                int.TryParse(v, NumberStyles.Integer, CultureInfo.InvariantCulture, out width);
+            }
+            else if (line.StartsWith("bit_rate="))
+            {
+                var v = line.Substring("bit_rate=".Length);
+                double.TryParse(v, NumberStyles.Float, CultureInfo.InvariantCulture, out bitrate);
+            }
+            else if (line.StartsWith("height="))
+            {
+                var v = line.Substring("height=".Length);
+                int.TryParse(v, NumberStyles.Integer, CultureInfo.InvariantCulture, out height);
+            }
+            else if (line.StartsWith("avg_frame_rate="))
+            {
+                var v = line.Substring("avg_frame_rate=".Length);
+                var parts = v.Split('/');
+                if (parts.Length == 2 &&
+                    double.TryParse(parts[0], NumberStyles.Float, CultureInfo.InvariantCulture, out var num) &&
+                    double.TryParse(parts[1], NumberStyles.Float, CultureInfo.InvariantCulture, out var den) &&
+                    den != 0)
+                {
+                    fps = num / den;
+                }
+            }
+        }
+
+        p.WaitForExit();
+
+        return new(duration, width, height, fps, bitrate);
+    }
+}

splitter-cli/README.md

@@ -1,230 +0,0 @@
-# Splitter
-
-Splitter is a high-performance command line tool for cutting one or more video files into equal or fixed-length segments using multi-threaded FFmpeg execution.
-It supports batch input, flexible duration formats, rotation, smart face/body-aware cropping, ETA and speed reporting, and both rich and plain-text terminal output.
-
-![Splitter](splitter.png)
-
-## Features
-
-- Multi-threaded FFmpeg splitting for maximum throughput
-- Equal or fixed-length segmentation
-- Batch input via file masks or list files
-- Smart cropping with face/body tracking
-- Rotation correction
-- ETA, speed, and progress display
-- FFmpeg passthrough for advanced control
-- [Potentially] Cross-platform (.NET 10)
-
-## Requirements
-
-- FFmpeg and FFprobe available in system PATH
-- .NET 10 Runtime or newer
-
-If you want to update model:
-
-- For face detection: [opencv_zoo/models/face_detection_yunet at main · opencv/opencv_zoo](https://github.com/opencv/opencv_zoo/tree/main/models/face_detection_yunet)
-- For body detection: [yolov8s.pt · Ultralytics/YOLOv8 at main](https://huggingface.co/Ultralytics/YOLOv8/blob/main/yolov8s.pt)
-
-To convert models from PyTorch to ONNX, you can use the following command:
-
-```python
-from ultralytics import YOLO
-
-model = YOLO("yolov8x.pt")
-model.export(format="onnx", opset=12, half=False)   # FP32 ONNX
-```
-
-## How It Works
-
-1. Reads total duration using ffprobe
-2. Parses target duration
-3. Computes number of segments
-4. If not forced, equalizes segment lengths
-5. Runs multiple FFmpeg processes in parallel
-6. Applies rotation, crop, and tracking if enabled
-7. Displays progress, ETA, and speed
-
-## Face Tracking vs Body Tracking
-
-Face tracking and body tracking serve different purposes, and Splitter supports both because each
-excels in different recording environments. When converting horizontal footage into vertical clips,
-the choice of detector determines how stable, reliable, and natural the automated camera motion will be.
-
-![Face vs Body Tracking](tracking.png)
-
-### Face Tracking Using UltraFace 320
-
-Splitter uses the UltraFace 320 ONNX model to perform lightweight, real-time face detection on each
-frame of the input video. The detector produces bounding boxes for visible faces, and the tracking
-system maintains a stable, smoothed target region across time. This is achieved by combining per-frame
-detections with temporal smoothing (EMA), dropout tolerance, and camera easing. The result is a
-continuous, stable crop window that follows the performer even when the face is partially occluded,
-briefly lost, or moving rapidly.
-
-During segmentation, the crop window is recalculated for every frame, ensuring that each output
-segment inherits the same smooth camera motion. This makes the vertical clips appear as if they
-were recorded with a dedicated portrait-oriented camera operator. The UltraFace 320 model is
-fast enough to run alongside multi-threaded FFmpeg splitting without becoming a bottleneck,
-making it suitable for long recordings and batch processing.
-
-### Benefits of Full-Body Detection Using YOLOv8s for Live Gig Recordings
-
-When recording concerts or live gigs, performers often move unpredictably, turn away from the
-camera, or become partially obscured by lighting, instruments, or stage effects.
-Full-body detection using a YOLOv8s ONNX model provides a more reliable tracking anchor than
-face detection alone. Because YOLOv8s can detect the entire human silhouette, the tracker
-maintains stable framing even when the face is not visible, when the performer is far from
-the camera, or when stage lighting makes facial features hard to detect. This produces vertical
-clips that feel intentional and professionally framed, with fewer sudden jumps or lost-tracking
-moments. For creators converting horizontal gig footage into short vertical clips for YouTube
-Shorts or TikTok, body-based tracking significantly improves consistency, reduces manual editing,
-and preserves the energy and motion of the performance.
-
-### Automated Camera Control
-
-Splitter includes an automated camera control system that simulates the behavior of a virtual
-camera operator when generating vertical crops from horizontal footage. The goal is to maintain
-smooth, intentional framing around the tracked subject, even when detections are noisy, intermittent,
-or temporarily lost.
-
-The controller receives object detections (face or body) and converts them into a stable crop
-window using a combination of Kalman filtering, exponential smoothing, dropout tolerance,
-and a three-state tracking model. The Kalman filter provides predictive motion smoothing,
-while the EMA factor blends the predicted position with the previous camera center to avoid jitter.
-The camera easing value controls how quickly the virtual camera follows the subject, producing
-natural-looking motion rather than abrupt jumps.
-
-When detections disappear, the controller enters one of two fallback modes. In LostFreeze mode,
-the camera holds its last known position for a configurable number of frames, preventing sudden
-jumps during brief occlusions. If the subject remains lost beyond that threshold, the controller
-transitions to LostDrift mode, slowly drifting the camera back toward a neutral center position.
-This prevents the crop from drifting off-screen and ensures that the output remains usable even
-when tracking fails. All positions are clamped to valid bounds, guaranteeing that the crop window
-never leaves the video frame.
-
-### Automatic rotation detection
-
-The rotation-estimation method is based on analyzing the distribution of gradient orientations within 
-a video frame. After converting the frame to grayscale, the algorithm computes horizontal and vertical 
-image gradients using Sobel operators and derives per-pixel gradient magnitudes and orientations. 
-These orientations are folded into the range [0, 180) and accumulated into a fixed-size, 
-magnitude-weighted histogram. The histogram represents the structural edge distribution of the frame, 
-independent of brightness fluctuations or local lighting artifacts. By comparing the total gradient
-energy concentrated near 0 degrees (vertical edges) with the energy near 90 degrees (horizontal edges), 
-the method determines whether the frame is more consistent with an upright or sideways orientation.
-
-This approach is designed for environments where brightness-based cues are unreliable, such as
-live concerts with strobe lights, LED walls, haze, and crowd movement. It relies solely on geometric 
-edge structure, which remains stable even under extreme lighting variation. The implementation is 
-optimized for high-throughput video processing: all intermediate Mats, buffers, and histograms are 
-preallocated, and pixel data is accessed directly through pointers to avoid per-frame memory 
-allocation. The method is intentionally biased toward the upright orientation, returning a sideways
-classification only when the horizontal-edge energy significantly exceeds the vertical-edge energy.
-
-## Usage
-
-```
-splitter [<input.mp4> ...] [options] [--] <ffmpeg passthrough>
-```
-
-Inputs may be provided directly, via `--file=...`, or using file masks such as `videos/*.mp4`.
-
-
-## Options
-
-Below is a clean, ASCII-only **options table** version of your content.
-All option names are preserved exactly, and descriptions are consolidated for clarity.
-
----
-
-## Options
-
-| Parameter | Description |
-|----------|-------------|
-| --out=&lt;folder&gt; | Output folder for segments. Default: same folder as input video + "Splitter". |
-| --file=&lt;path&gt; | Input names or file masks (e.g. "videos/*.mp4"). If not specified, the first non-option argument is used as input. |
-| --mask=&lt;pattern&gt; | Output filename pattern. Default: [NAME]_seg[NN].[EXT]. Supports [NAME], [N], [NN], [NNN], [NNNN], [EXT] placeholders. |
-| --duration=&lt;value&gt; | Override target segment duration. Formats: Ns, NmMs, N. Examples: 90s, 2m30s, 45. Default (without --force): max 58s, equalized segment lengths. |
-| --force | Use fixed segment duration exactly as given. Last segment may be shorter. Default OFF. |
-| --enhance | Enable video enhancement. Output resolution x4 using RealBasicVSR_x4 model. |
-| --rotate=&lt;degrees&gt; | Rotate video by 90, 180, or 270 degrees. |
-| --rotate-auto | Auto-detect rotation using edge orientation statistics. |
-| --estimate | Print calculated segment information and exit. No splitting performed. |
-| --crop[=&lt;w:h&gt;] | Crop video to width w and height h with face tracking. Default: 607x1080. |
-| --detect=&lt;name&gt; | Object detector: face (UltraFace), body (YoloOnnx, default), none. |
-| --detect-above=&lt;0-1&gt; | Report detections only if upper bound starts below this threshold (0.0–1.0 mapped to 0..Height). |
-| --detect-id=&lt;hex&gt; | Hexadecimal ID of face/person to track across segments. Obtained via --debug overlay. |
-| --gravitate=&lt;x:y&gt; | Gravitate tracking toward normalized point (0.0–1.0). Example: 0.2:0.5. |
-| --text | Display log in plain text. |
-| --single-thread | Run in single-threaded mode. Useful for debugging or constrained systems. |
-| --debug | Show debug overlay during face tracking. |
-| -p:&lt;name&gt;=&lt;value&gt; | Set custom detector parameter. Example: -p:EmaFactor=0.65. |
-
-Tracking splitter defaults:
-
-    DropoutToleranceFrames = 20;
-    EmaFactor              = 0.65;
-    CameraEasing           = 0.03;
-    LostFreezeFrames       = 60;   
-
-Rotation detector defaults:
-
-    RotationDetectorSampleCount  = 5;
-    RotationDetectorSampleLength = 0.15; 
-    RotationDetectorFrameWidth   = 320;
-    RotationDetectorFrameHeight  = 180;
-
-
-## FFmpeg Passthrough
-
-Anything after `--` is passed directly to FFmpeg.
-
-Example:
-```
-splitter video.mp4 --force --duration=45 -- -an -sn
-```
-
-## Input and Output Behavior
-
-- `input.mp4` may be a file mask (`videos/*.mp4`)
-- Output filenames follow the `--mask` pattern
-- Output folder defaults to `<input folder>/Splitter` unless overridden
-
-## Examples
-
-Split into equal 60-second segments:
-```
-splitter vertical-video.mp4
-```
-
-Split into equal 90-second segments:
-```
-splitter vertical-video.mp4 --duration=90s
-```
-
-Custom naming:
-```
-splitter vertical-video.mp4 --duration=2m30s --mask="[NAME]_[NNNN].mp4"
-```
-
-Estimate only:
-```
-splitter vertical-video.mp4 --estimate
-```
-
-Fixed 45-second segments with passthrough:
-```
-splitter vertical-video.mp4 --force --duration=45 -- -an -sn
-```
-
-Smart crop for Shorts:
-```
-splitter horizontal-video.mp4 --out=Cropped/ --crop
-```
-
-Batch processing with body tracking:
-```
-splitter --file=file_names.txt --out=Cropped/ --crop --detect=body
-```
-

splitter-cli/SimpleSplitter.cs

@@ -3,269 +3,69 @@ using System.Globalization;
 
 namespace splitter;
 
-public sealed class SimpleSplitter : LoggingBase, ISegmentProcessor
+public class SimpleSplitter(int segmentNo, ILogger logger) : LoggingBase(logger, segmentNo), ISegmentProcessor
 {
-    // ------------------------------------------------------------
+    public async Task ProcessSegment(SingleTask job)
-    // Internal state (opaque to caller)
-    // ------------------------------------------------------------
-
-    private sealed class State : IFrameProcessingState
     {
-        public Process? DecodeProcess { get; set; }
+        string inputFile                     = job.Job.InputFile;
-        public Stream? DecodeStdout   { get; set; }
+        string outputFile                    = job.OutputFileName;
+        double start                         = job.SegmentStart;
+        double length                        = job.SegmentLength;
+        int videoWidth                       = job.Info.Width;
+        int videoHeight                      = job.Info.Height;
+        double fps                           = job.Info.Fps;
+        string[] ffmpegPassthroughParameters = job.Job.Passthrough;
         
-        public string InputFile       { get; }
+        var pass = ffmpegPassthroughParameters.Length > 0 ? string.Join(" ", ffmpegPassthroughParameters) : "";
-        public double Start           { get; }
-        public double Length          { get; }
-        public int? Rotate            { get; }
-        public string[] Passthrough   { get; }
-        public VideoInfo Info         { get; }
-        public bool PlainText         { get; }
-
-        public State(SingleTask job)
-        {
-            InputFile   = job.Job.InputFile;
-            Start       = job.SegmentStart;
-            Length      = job.SegmentLength;
-            Rotate      = job.Job.Rotate;
-            Passthrough = job.Job.Passthrough;
-            Info        = job.Info;
-            PlainText   = job.Job.PlainText;
-        }
-    }
-
-    public SimpleSplitter(int segmentNo, ILogger logger)
-        : base(logger, segmentNo)
-    {
-    }
-
-    // ============================================================
-    // InitSegment
-    // ============================================================
-
-    public IFrameProcessingState InitSegment(SingleTask job, CancellationToken token)
-    {
-        var state = new State(job);
-
-        var decode          = StartDecode(job, token);
-        state.DecodeProcess = decode;
-        state.DecodeStdout  = decode.StandardOutput.BaseStream;
-
-        return state;
-    }
-
-    // ============================================================
-    // GetNextProcessedFrame
-    // ============================================================
-
-    public Mat? GetNextProcessedFrame(IFrameProcessingState processorState, CancellationToken token)
-    {
-        var state = (State)processorState;
-
-        if (state.DecodeStdout == null)
-            return null;
-
-        // SimpleSplitter does not modify frames; it only copies or rotates.
-        // For preview, we decode raw frames and return them as-is.
-
-        // Determine expected frame size
-        var w = state.Info.Width;
-        var h = state.Info.Height;
-        var bytes = w * h * 3;
-
-        var buffer = new byte[bytes];
-        var read = state.DecodeStdout.Read(buffer, 0, bytes);
-        if (read != bytes)
-            return null;
-
-        var mat = new Mat(h, w, MatType.CV_8UC3);
-        System.Runtime.InteropServices.Marshal.Copy(buffer, 0, mat.Data, bytes);
-
-        return mat;
-    }
-
-    // ============================================================
-    // FinishSegment
-    // ============================================================
-
-    public void FinishSegment(IFrameProcessingState processorState)
-    {
-        var state = (State)processorState;
-
-        try
-        {
-            if (state.DecodeProcess != null && !state.DecodeProcess.HasExited)
-                state.DecodeProcess.Kill(entireProcessTree: true);
-        }
-        catch { }
-
-        try
-        {
-            if (state.DecodeProcess != null && !state.DecodeProcess.HasExited)
-                state.DecodeProcess.WaitForExit();
-        }
-        catch { }
-    }
-
-    // ============================================================
-    // ProcessSegment (now uses preview API)
-    // ============================================================
-
-    public async Task ProcessSegment(SingleTask job, CancellationToken token)
-    {
-        var state = (State)InitSegment(job, token);
-
-        var encode = StartEncode(job);
-        using var encodeStdin = encode.StandardInput.BaseStream;
-
-        var name = Path.GetFileNameWithoutExtension(job.OutputFileName);
-        var sw   = Stopwatch.StartNew();
-
-        while (true)
-        {
-            token.ThrowIfCancellationRequested();
-
-            var frame = GetNextProcessedFrame(state, token);
-            if (frame == null)
-                break;
-
-            // Write raw frame to encoder
-            var bytes = frame.Width * frame.Height * 3;
-            var buffer = new byte[bytes];
-            System.Runtime.InteropServices.Marshal.Copy(frame.Data, buffer, 0, bytes);
-            encodeStdin.Write(buffer, 0, bytes);
-
-            frame.Dispose();
-        }
-
-        encodeStdin.Flush();
-        encodeStdin.Close();
-
-        await encode.WaitForExitAsync(token);
-
-        FinishSegment(state);
-
-        ClearProgress(name);
-
-        if (encode.ExitCode != 0)
-            LogError($"Segment {name} FFmpeg encoding failed");
-        else
-            LogInfo($"Segment {name} processing completed");
-    }
-
-    // ============================================================
-    // FFmpeg helpers
-    // ============================================================
-
-    private Process StartDecode(SingleTask job, CancellationToken token)
-    {
-        var ss = job.SegmentStart.ToString("0.###", CultureInfo.InvariantCulture);
-        var t  = job.SegmentLength.ToString("0.###", CultureInfo.InvariantCulture);
-
-        var rotate = GetRotationFilter(job.Job.Rotate);
-        var vf = rotate != null ? $"-vf format=bgr24,{rotate}" : "-vf format=bgr24";
-
-        var args =
-            $"-i \"{job.Job.InputFile}\" -ss {ss} -t {t} " +
-            "-an -sn " +
-            $"{vf} " +
-            "-f rawvideo -";
-
-        var psi = new ProcessStartInfo
-        {
-            FileName               = "ffmpeg",
-            Arguments              = args,
-            RedirectStandardOutput = true,
-            RedirectStandardError  = true,
-            UseShellExecute        = false,
-            CreateNoWindow         = true
-        };
-
-        var p = Process.Start(psi) ?? throw new Exception("Failed to start ffmpeg decode.");
-        return p;
-    }
-
-    private Process StartEncode(SingleTask job)
-    {
-        var inputFile  = job.Job.InputFile;
-        var outputFile = job.OutputFileName;
-        var start      = job.SegmentStart;
-        var length     = job.SegmentLength;
-
-        var rotation = GetRotationFilter(job.Job.Rotate);
 
         string args;
-
+        var rotation = GetRotationFilter(job.Job.Rotate);
         if (rotation == null)
         {
             args =
                 $"-ss {start.ToString(CultureInfo.InvariantCulture)} " +
                 $"-i \"{inputFile}\" " +
                 $"-t {length.ToString(CultureInfo.InvariantCulture)} " +
-                $"-c copy {string.Join(" ", job.Job.Passthrough)} " +
+                $"-c copy {pass} \"{outputFile}\" -y";
-                $"\"{outputFile}\" -y";
         }
         else
         {
-            var sarArg = "";
+            // Rotation → must re-encode
-            var darArg = "";
-
-            var sar = job.Info.SampleAspectRatio;
-            if (sar != null)
-            {
-                var sarNum = Convert.ToInt64(job.Info.Sar.X);
-                var sarDen = Convert.ToInt64(job.Info.Sar.Y);
-
-                var w = job.Info.Width;
-                var h = job.Info.Height;
-
-                if (job.Job.Rotate == 90 || job.Job.Rotate == 270)
-                    (w, h) = (h, w);
-
-                var darNum = w * sarNum;
-                var darDen = h * sarDen;
-
-                long Gcd(long a, long b)
-                {
-                    while (b != 0) (a, b) = (b, a % b);
-                    return a;
-                }
-
-                var g = Gcd(darNum, darDen);
-                darNum /= g;
-                darDen /= g;
-
-                sarArg = $"-vf \"{rotation},setsar={sarNum}:{sarDen}\" ";
-                darArg = $"-aspect {darNum}:{darDen} ";
-            }
-            else
-                sarArg = $"-vf \"{rotation}\" ";
-
             args =
                 $"-ss {start.ToString(CultureInfo.InvariantCulture)} " +
                 $"-i \"{inputFile}\" " +
                 $"-t {length.ToString(CultureInfo.InvariantCulture)} " +
-                sarArg + darArg +
+                $"-vf \"{rotation}\" " +
                 "-c:v h264_nvenc -preset p4 -b:v 8M -pix_fmt yuv420p " +
                 "-c:a copy " +
-                $"{string.Join(" ", job.Job.Passthrough)} " +
+                $"{pass} \"{outputFile}\" -y";
-                $"\"{outputFile}\" -y";
         }
 
         var psi = new ProcessStartInfo
         {
-            FileName              = "ffmpeg",
+            FileName = "ffmpeg",
-            Arguments             = args,
+            Arguments = args,
-            RedirectStandardInput = true,
             RedirectStandardError = true,
-            UseShellExecute       = false,
+            UseShellExecute = false,
-            CreateNoWindow        = true
+            CreateNoWindow = true
         };
 
-        return Process.Start(psi) ?? throw new Exception("Failed to start ffmpeg encode.");
+        using var proc = Process.Start(psi) ?? throw new Exception("Failed to start ffmpeg.");
+
+        var name = Path.GetFileNameWithoutExtension(outputFile);
+        ShowFFMpegProgress(length, proc, name);
+
+        proc.WaitForExit();
+        
+        ClearProgress();
+
+        if (proc.ExitCode != 0)
+            LogError($"Segment {name} FFmpeg encoding failed");
+        else
+            LogInfo($"Segment {name} processing completed");
     }
 
-    private string? GetRotationFilter(int? degrees) =>
+    string? GetRotationFilter(int? degrees) =>
         degrees switch
         {
             90 => "transpose=1",
@@ -273,4 +73,66 @@ public sealed class SimpleSplitter : LoggingBase, ISegmentProcessor
             270 => "transpose=2",
             _ => null
         };
+
+
+    private void ShowFFMpegProgress(double length, Process proc, string name)
+    {
+        var sw = Stopwatch.StartNew();
+
+        string? line;
+        while ((line = proc.StandardError.ReadLine()) != null)
+        {
+            // Look for "time=00:00:03.52"
+            var idx = line.IndexOf("time=", StringComparison.OrdinalIgnoreCase);
+            if (idx < 0)
+                continue;
+
+            var timeStr = ExtractTimestamp(line, idx + 5);
+            if (timeStr == null)
+                continue;
+
+            if (!TryParseFfmpegTime(timeStr, out var current))
+                continue;
+
+            var progress = current.TotalSeconds / length;
+            if (progress < 0) progress = 0;
+            if (progress > 1) progress = 1;
+
+            var elapsed = sw.Elapsed;
+            var speed = current.TotalSeconds > 0
+            ? current.TotalSeconds / elapsed.TotalSeconds
+            : 0;
+
+            var remaining = length - current.TotalSeconds;
+            var etaSeconds = speed > 0 ? remaining / speed : remaining;
+            var eta = TimeSpan.FromSeconds(etaSeconds);
+
+            DrawProgress(name, progress, eta, speed);
+        }
+    }
+
+    private static string? ExtractTimestamp(string line, int startIndex)
+    {
+        // FFmpeg formats: HH:MM:SS.xx
+        // We read until whitespace
+        int end = startIndex;
+        while (end < line.Length && !char.IsWhiteSpace(line[end]))
+            end++;
+
+        if (end <= startIndex)
+            return null;
+
+        return line[startIndex..end];
+    }
+
+    private static bool TryParseFfmpegTime(string s, out TimeSpan ts)
+    {
+        // FFmpeg uses "00:00:03.52"
+        return TimeSpan.TryParseExact(
+            s,
+            @"hh\:mm\:ss\.ff",
+            CultureInfo.InvariantCulture,
+            out ts);
+    }
+
 }

splitter-cli/SingleJob.cs

@@ -1,169 +0,0 @@
-using System.Globalization;
-
-namespace splitter;
-
-public record Segment(double Start, double End);
-
-public class SingleJob
-{
-    /// <summary>
-    /// File path of the input video. This is required for each job and should be
-    /// set to a valid video file path. The splitter will read this file, analyze it, 
-    /// and split it into segments based on the specified parameters. 
-    /// The output segments will be saved in the OutputFolder with names 
-    /// derived from this input file and the Mask pattern if provided.
-    /// </summary>
-    public string                     InputFile              { get; set; } = null!;
-    /// <summary>
-    /// Output folder where the split segments will be saved. This should be set 
-    /// to a valid directory path.
-    /// </summary>
-    public string                     OutputFolder           { get; set; } = null!;
-    /// <summary>
-    /// Crop parameters. Width and height for cropping the video. If set, the 
-    /// splitter will crop the video to the specified dimensions while tracking the subject.
-    /// </summary>
-    public (int width, int height)?   Crop                   { get; set; }
-    /// <summary>
-    /// The fallback point to gravitate towards when tracking the subject. Coordinates are normalized (0.0 to 1.0).
-    /// By default , the splitter gravitates towards the center of the frame (0.5, 0.5). 
-    /// Setting this allows you to bias the tracking towards a specific area of the frame, 
-    /// such as left-center (0.2, 0.5) or top-right (0.8, 0.2). This can be useful for 
-    /// videos where the subject tends to be off-center or for creative framing choices.
-    /// </summary>
-    public Point2f                    GravitateTo            { get; set; } = new Point2f(0.5f, 0.5f);
-    /// <summary>
-    /// Destination file mask.
-    /// </summary>
-    public string?                    Mask                   { get; set; }
-    /// <summary>
-    /// Instead of producing the output, just generate debug frames with tracking 
-    /// overlay to visually verify that the tracking is working correctly.
-    /// </summary>
-    public bool                       Debug                  { get; set; }
-    /// <summary>
-    /// Type of detector to use for tracking. Supported values are: face (UltraFace), 
-    /// body (YoloOnnx, default), none (no tracking, just a center point).
-    /// </summary>
-    public string?                    Detect                 { get; set; }
-    /// <summary>
-    /// Detection confidence threshold. This is a value between 0.0 and 1.0 that sets the minimum confidence
-    /// </summary>
-    public float                      ScoreThreshold         { get; set; } = 0.25f;
-    /// <summary>
-    /// Identity matching confidence threshold. This is a value between 0.0 and 1.0 that sets the minimum confidence
-    /// </summary>
-    public float                      IdentityThreshold      { get; set; } = 0.25f;
-    /// <summary>
-    /// Face or human detectors should only report detections if their upper bound starts below this threshold. 
-    /// This is a value between 0.0 and 1.0 mapped to 0..Height.
-    /// </summary>
-    public float                      DetectAbove            { get; set; } = 0.7f;
-    /// <summary>
-    /// Object ID to track. This is a hexadecimal string that identifies a specific face or 
-    /// person to track across segments. This is useful when you want to consistently track the same person
-    /// publacross all segments of a video, even if there are multiple people present
-    /// The ID can be obtained when running with --debug or from the debug overlay.
-    /// </summary>
-    public ulong?                     DetectId               { get; set; }
-    /// <summary>
-    /// Set starget segments length explicitly. By default, the splitter calculates segment 
-    /// lengths to be equal and not exceed 58 seconds.
-    /// </summary>
-    public double?                    OverrideTargetDuration { get; set; }
-    /// <summary>
-    /// Parameters to pass thru to ffmpeg. These are specified after "--" in the command 
-    /// line and are passed directly to the ffmpeg command line for each segment.
-    /// </summary>
-    public string[]                   Passthrough            { get; set; } = [];
-    /// <summary>
-    /// Debugging parameter. Instead of text UI putput lines in plain text. 
-    /// This is useful when the output is being piped to a file or another program, 
-    /// or when the user prefers a simpler log format without progress bars and dynamic updates.
-    /// </summary>
-    public bool                       PlainText              { get; set; }
-    /// <summary>
-    /// Debugging parameter. Just show estimated segments length, count, and other info 
-    /// without actually performing the splitting.
-    /// </summary>
-    public bool                       EstimateOnly           { get; set; }
-    /// <summary>
-    /// Do not adapt segment length. When set, the splitter will use the exact 
-    /// segment duration specified by --duration for all segments except possibly 
-    /// the last one, which may be shorter.
-    /// </summary>
-    public bool                       ForceFixed             { get; set; }
-    /// <summary>
-    /// Use single thread for operations. When set, the splitter will not run 
-    /// multiple ffmpeg processes in parallel.
-    /// </summary>
-    public bool                       SingleThreaded         { get; set; }
-    /// <summary>
-    /// Rotation angle: 90, 180, or 270 degrees. This is useful for videos that 
-    /// have incorrect orientation metadata.
-    /// </summary>
-    public int?                       Rotate                 { get; set; }
-    /// <summary>
-    /// Autodetect if rotation is needed. Not very reliable but can work for some videos. 
-    /// Uses edge orientation statistics to determine if the video is rotated and 
-    /// applies the appropriate rotation if needed.
-    /// </summary>
-    public bool                       RotateAuto             { get; set; }
-    /// <summary>
-    /// Override internal parameters. This allows you to set custom parameters for the 
-    /// object detector or rotation detector.
-    /// </summary>
-    public Dictionary<string, string> Parameters             { get; set; } = [];
-    /// <summary>
-    /// Increase output resolution by x4 using super-resolution RealBasicVSR_x4 model.
-    /// </summary>
-    public bool                       Enhance                { get; set; }
-
-    public void Override<T>(ref T member, string name)
-    {
-        if (!Parameters.TryGetValue(name, out var raw))
-            return;
-
-        try
-        {
-            // Convert.ChangeType handles int, float, double, etc.
-            var converted = (T)Convert.ChangeType(
-            raw,
-            typeof(T),
-            CultureInfo.InvariantCulture
-        );
-
-            member = converted;
-        }
-        catch
-        {
-            Console.WriteLine($"Invalid value for parameter '{name}': {raw}");
-        }
-    }
-
-    public void CopyTo(SingleJob target)
-    {
-        target.OutputFolder           = OutputFolder;
-        target.Crop                   = Crop;
-        target.GravitateTo            = GravitateTo;
-        target.Mask                   = Mask;
-        target.Debug                  = Debug;
-        target.Detect                 = Detect;
-        target.ScoreThreshold         = ScoreThreshold;
-        target.IdentityThreshold      = IdentityThreshold;
-        target.DetectAbove            = DetectAbove;
-        target.DetectId               = DetectId;
-        target.OverrideTargetDuration = OverrideTargetDuration;
-        target.Passthrough            = Passthrough.ToArray();
-        target.PlainText              = PlainText;
-        target.EstimateOnly           = EstimateOnly;
-        target.ForceFixed             = ForceFixed;
-        target.SingleThreaded         = SingleThreaded;
-        target.Rotate                 = Rotate;
-        target.RotateAuto             = RotateAuto;
-        target.Parameters             = new Dictionary<string, string>(Parameters);
-        target.Enhance                = Enhance;
-    }
-
-    public void CopyFrom(SingleJob source) => source.CopyTo(this);
-}

splitter-cli/SpectreConsoleLogger.cs

@@ -2,7 +2,7 @@
 using Spectre.Console;
 using Spectre.Console.Rendering;
 
-namespace splitter.tui;
+namespace splitter;
 
 
 /// <summary>
@@ -39,7 +39,7 @@ public sealed class SpectreConsoleLogger : ILogger, IDisposable
             lock (_sync)
             {
                 _numberOfProcesses = Math.Max(1, value);
-                for (var i = 0; i < _numberOfProcesses; i++)
+                for (int i = 0; i < _numberOfProcesses; i++)
                 {
                     if (!_progress.ContainsKey(i))
                         _progress[i] = ProgressEntry.Empty;
@@ -51,11 +51,11 @@ public sealed class SpectreConsoleLogger : ILogger, IDisposable
 
     // ---- ILogger ----
 
-    public void ClearProgress(string name, int progressLine)
+    public void ClearProgress(int progressLevel)
     {
         lock (_sync)
         {
-            _progress[progressLine] = ProgressEntry.Empty;
+            _progress[progressLevel] = ProgressEntry.Empty;
         }
     }
 
@@ -282,17 +282,17 @@ public sealed class SpectreConsoleLogger : ILogger, IDisposable
         if (width <= 0)
             return string.Empty;
 
-        var filled = (int)Math.Round(progress * width);
+        int filled = (int)Math.Round(progress * width);
-        var empty = width - filled;
+        int empty = width - filled;
 
         if (filled <= 0)
             return $"[grey]{new string('─', width)}[/]";
 
         // Split filled part into three segments: blue / yellow / green
         // low progress: mostly blue; mid: yellow; high: green
-        var blueCount = (int)Math.Round(filled * 0.33);
+        int blueCount = (int)Math.Round(filled * 0.33);
-        var yellowCount = (int)Math.Round(filled * 0.34);
+        int yellowCount = (int)Math.Round(filled * 0.34);
-        var greenCount = filled - blueCount - yellowCount;
+        int greenCount = filled - blueCount - yellowCount;
 
         var sb = new StringBuilder();
 
@@ -375,7 +375,7 @@ public sealed class SpectreConsoleLogger : ILogger, IDisposable
             return new Measurement(width, width);
         }
 
-        public IEnumerable<Spectre.Console.Rendering.Segment> Render(RenderOptions options, int maxWidth)
+        public IEnumerable<Segment> Render(RenderOptions options, int maxWidth)
         {
             var width = Math.Max(1, maxWidth);
 

splitter-cli/TextLogger.cs

@@ -1,4 +1,4 @@
-namespace splitter.tui;
+namespace splitter;
 
 public class TextLogger() : ILogger
 {
@@ -13,6 +13,6 @@ public class TextLogger() : ILogger
     }
 
     public void DrawProgress(string name, int progressLine, double progress, TimeSpan eta, double speed) {}
-    public void ClearProgress(string name, int progressLine) {}
+    public void ClearProgress(int progressLevel){}
 
 }

splitter-cli/TrackingSplitter.cs

@@ -1,196 +1,138 @@
 using System.Diagnostics;
 using System.Globalization;
 using System.Runtime.InteropServices;
+using OpenCvSharp;
 
 namespace splitter;
 
-public sealed class TrackingSplitter : LoggingBase, ISegmentProcessor
+public class TrackingSplitter : LoggingBase, ISegmentProcessor, IDisposable
 {
-    private readonly IObjectTracker _tracker;
+    private readonly IObjectDetector _detector;
-
-    // ------------------------------------------------------------
-    // Internal state (never exposed)
-    // ------------------------------------------------------------
-
-    private sealed class FrameProcessingState : IFrameProcessingState
-    {
-        public SingleTask Job           { get; }
-        public KalmanTracker Kalman     { get; }
-        public CameraController Camera  { get; }
-
-        public Mat FrameMat             { get; }
-        public Mat OutMat               { get; }
-        public byte[] InBuffer          { get; }
-        public byte[] OutBuffer         { get; }
-
-        public IVideoEnhancer? Enhancer { get; }
-
-        public int InBytes              { get; }
-        public int OutBytes             { get; }
-
-        public Process? DecodeProcess   { get; set; }
-        public Stream? DecodeStdout     { get; set; }
-
-        public FrameProcessingState(
-            SingleTask job,
-            KalmanTracker kalman,
-            CameraController camera,
-            Mat frameMat,
-            Mat outMat,
-            byte[] inBuffer,
-            byte[] outBuffer,
-            IVideoEnhancer? enhancer,
-            int inBytes,
-            int outBytes)
-        {
-            Job       = job;
-            Kalman    = kalman;
-            Camera    = camera;
-            FrameMat  = frameMat;
-            OutMat    = outMat;
-            InBuffer  = inBuffer;
-            OutBuffer = outBuffer;
-            Enhancer  = enhancer;
-            InBytes   = inBytes;
-            OutBytes  = outBytes;
-        }
-    }
 
     public TrackingSplitter(
-        int progressLine,
+        int  progressLine,
-        IObjectTracker tracker,
+        IObjectDetector detector,
         SingleJob cmd,
         ILogger logger)
         : base(logger, progressLine)
     {
-        _tracker = tracker;
+        _detector     = detector;
     }
 
-    // ============================================================
+    public void Dispose()
-    // PUBLIC PREVIEW API
-    // ============================================================
-
-    // ------------------------------------------------------------
-    // InitSegment
-    // ------------------------------------------------------------
-
-    public IFrameProcessingState InitSegment(SingleTask job, CancellationToken token)
     {
-        var state = (FrameProcessingState)CreateFrameState(job);
+        if (_detector is IDisposable d)
-
-        if (state.Enhancer != null)
-            state.Enhancer.InitializeAsync(
-                state.OutMat.Width,
-                state.OutMat.Height,
-                5,
-                token).Wait(token);
-
-        var decode = StartFfmpegDecode(
-            job.Job.InputFile,
-            job.SegmentStart,
-            job.SegmentLength,
-            job.Job.Rotate,
-            job.Job.PlainText,
-            token).Result;
-
-        state.DecodeProcess = decode;
-        state.DecodeStdout = decode.StandardOutput.BaseStream;
-
-        return state;
-    }
-
-    // ------------------------------------------------------------
-    // GetNextProcessedFrame
-    // ------------------------------------------------------------
-
-    public Mat? GetNextProcessedFrame(
-        IFrameProcessingState processorState,
-        CancellationToken token)
-    {
-        var state = (FrameProcessingState)processorState;
-
-        if (state.DecodeStdout == null)
-            return null;
-
-        if (!TryReadNextFrame(state.DecodeStdout, state, token))
-            return null;
-
-        return ProcessFrame(state.FrameMat, state, state.Job, token);
-    }
-
-    // ------------------------------------------------------------
-    // FinishSegment
-    // ------------------------------------------------------------
-
-    public void FinishSegment(IFrameProcessingState processorState)
-    {
-        var state = (FrameProcessingState)processorState;
-
-        try
-        {
-            if (state.DecodeProcess != null && !state.DecodeProcess.HasExited)
-                state.DecodeProcess.Kill(entireProcessTree: true);
-        }
-        catch { }
-
-        try
-        {
-            if (state.DecodeProcess != null && !state.DecodeProcess.HasExited)
-                state.DecodeProcess.WaitForExit();
-        }
-        catch { }
-
-        if (state.Enhancer is IAsyncDisposable ad)
-            ad.DisposeAsync().AsTask().Wait();
-        else if (state.Enhancer is IDisposable d)
             d.Dispose();
     }
 
-    // ============================================================
+    public async Task ProcessSegment(SingleTask job)
-    // PROCESSSEGMENT (full pipeline)
-    // ============================================================
-
-    public async Task ProcessSegment(SingleTask job, CancellationToken token)
     {
-        var name = Path.GetFileNameWithoutExtension(job.OutputFileName);
+        string inputFile                     = job.Job.InputFile;
-        var fps  = job.Info.Fps;
+        string outputFile                    = job.OutputFileName;
+        double start                         = job.SegmentStart;
+        double length                        = job.SegmentLength;
+        int videoWidth                       = job.Info.Width;
+        int videoHeight                      = job.Info.Height;
+        double fps                           = job.Info.Fps;
+        double bitrate                       = job.Info.Bitrate;
+        string[] ffmpegPassthroughParameters = job.Job.Passthrough;
 
-        var state = (FrameProcessingState)InitSegment(job, token);
+        var name = Path.GetFileNameWithoutExtension(outputFile);
 
-        var encode = await StartFfmpegEncode(
+        // 1) Probe source video
-            job.Job.InputFile,
+        if (videoWidth <= 0 || videoHeight <= 0 || fps <= 0)
-            job.OutputFileName,
+        {
-            job.SegmentStart,
+            LogError($"{name}: ffprobe failed to get metadata");
-            job.SegmentLength,
+            return;
-            state.OutMat.Width,
+        }
-            state.OutMat.Height,
+
-            job.Info,
+        if (job.Job.Crop == null)
-            job.Job.Passthrough,
+        {
-            job.Job.PlainText,
+            LogError($"{name}: Crop parameters are required");
-            token);
+            return;
+        }
+
+        var encWidth  = job.Job.Debug ? videoWidth  : job.Job.Crop.Value.width;
+        var encHeight = job.Job.Debug ? videoHeight : job.Job.Crop.Value.height;
+
+        LogInfo($"{name}: src={videoWidth}x{videoHeight} @ {fps:F3}fps, seg=[{start:F3},{length:F3}] enc={encWidth}x{encHeight}");
+
+        // 2) Start FFmpeg decode (video only → raw BGR24 to stdout)
+        var decode = StartFfmpegDecode(inputFile, start, length, job.Job.Rotate, job.Job.PlainText);
+        using var decodeStdout = decode.StandardOutput.BaseStream;
+
+        // 3) Start FFmpeg encode (video from stdin + audio from original)
+        var encode = StartFfmpegEncode(
+            inputFile,
+            outputFile,
+            start,
+            length,
+            encWidth,
+            encHeight,
+            fps,
+            ffmpegPassthroughParameters,
+            job.Job.PlainText);
 
         using var encodeStdin = encode.StandardInput.BaseStream;
 
-        var totalFrames = (int)Math.Round(job.SegmentLength * fps);
+        // Separate input/output sizes and buffers
-        var frameIndex  = 0;
+        var inBytes  = videoWidth * videoHeight * 3;
+        var outBytes = encWidth   * encHeight   * 3;
+
+        var inBuffer  = new byte[inBytes];
+        var outBuffer = new byte[outBytes];
+
+        using var frameMat = new Mat(videoHeight, videoWidth, MatType.CV_8UC3);
+        using var outMat   = new Mat(encHeight, encWidth, MatType.CV_8UC3);
+
+        var kalman = new KalmanTracker();
+        var camera = new CameraController(
+            videoWidth,
+            videoHeight,
+            job.Job.Crop.Value.width,
+            job.Job.Crop.Value.height,
+            kalman,
+            job.Job);
+
         var startTime   = DateTime.UtcNow;
+        var totalFrames = (int)Math.Round(length * fps);
+        var frameIndex  = 0;
 
         while (frameIndex < totalFrames)
         {
-            token.ThrowIfCancellationRequested();
-
-            var frame = GetNextProcessedFrame(state, token);
-            if (frame == null)
-                break;
-
             frameIndex++;
 
-            EncodeFrame(frame, state, encodeStdin);
+            var read = ReadExact(decodeStdout, inBuffer, 0, inBytes);
+            if (read != inBytes)
+                break;
+
+            // input frame → Mat
+            Marshal.Copy(inBuffer, 0, frameMat.Data, inBytes);
+
+            var objects = _detector.DetectAll(frameMat);
+            var primary = SelectTrackedObject(objects, kalman.LastMeasurement);
+
+            camera.Update(primary);
+            var roi = camera.Roi;
+
+            if (job.Job.Debug)
+            {
+                DrawDebug(frameMat, objects, camera, kalman);
+                frameMat.CopyTo(outMat);
+            }
+            else
+            {
+                using var cropped = new Mat(frameMat, roi);
+                cropped.CopyTo(outMat);
+            }
+
+            // output Mat → outBuffer
+            Marshal.Copy(outMat.Data, outBuffer, 0, outBytes);
+            encodeStdin.Write(outBuffer, 0, outBytes);
 
             var elapsed         = DateTime.UtcNow - startTime;
             var progress        = totalFrames > 0 ? (double)frameIndex / totalFrames : 0.0;
             var speed           = elapsed.TotalSeconds > 0 ? (frameIndex / elapsed.TotalSeconds) / fps : 0.0;
-
             var remainingFrames = Math.Max(totalFrames - frameIndex, 0);
             var etaSeconds      = speed > 0 ? remainingFrames / speed : 0.0;
             var eta             = TimeSpan.FromSeconds(etaSeconds);
@@ -199,144 +141,51 @@ public sealed class TrackingSplitter : LoggingBase, ISegmentProcessor
         }
 
         encodeStdin.Flush();
-        encodeStdin.Close();
+
+        // loop finished
+
+        encodeStdin.Flush();
+        encodeStdin.Close();          // must happen before waiting encode
 
         await encode.WaitForExitAsync();
 
-        ClearProgress(name);
+        // belt-and-braces: if decode is still alive, kill it
+        try { if (!decode.HasExited) decode.Kill(entireProcessTree: true); } catch { }
+        try { if (!decode.HasExited) await decode.WaitForExitAsync(); } catch { }
+
+        ClearProgress();
+
 
         if (encode.ExitCode != 0)
             LogError($"{name}: FFmpeg encoding failed");
         else
             LogInfo($"{name}: Segment processing completed");
-
-        FinishSegment(state);
     }
 
-    // ============================================================
-    // INTERNAL HELPERS
-    // ============================================================
 
-    private object CreateFrameState(SingleTask job)
+    // ---------- FFmpeg decode / encode ----------
-    {
-        var w  = job.Info.Width;
-        var h  = job.Info.Height;
-        var cw = job.Job.Debug ? w : job.Job.Crop!.Value.width;
-        var ch = job.Job.Debug ? h : job.Job.Crop!.Value.height;
 
-        var kalman = new KalmanTracker();
+    private Process StartFfmpegDecode(string inputFile, double start, double length, int? rotate, bool plainText)
-        var camera = new CameraController(w, h, cw, ch, kalman, job.Job);
-
-        var frameMat = new Mat(h, w, MatType.CV_8UC3);
-        var outMat   = new Mat(ch, cw, MatType.CV_8UC3);
-
-        var inBytes  = w * h * 3;
-        var outBytes = cw * ch * 3;
-
-        var inBuffer  = new byte[inBytes];
-        var outBuffer = new byte[outBytes];
-
-        IVideoEnhancer? enhancer = job.Job.Enhance
-            ? new RealBasicVsr2xDmlEnhancer()
-            : null;
-
-        return new FrameProcessingState(
-            job,
-            kalman,
-            camera,
-            frameMat,
-            outMat,
-            inBuffer,
-            outBuffer,
-            enhancer,
-            inBytes,
-            outBytes);
-    }
-
-    private bool TryReadNextFrame(
-        Stream decodeStdout,
-        FrameProcessingState state,
-        CancellationToken token)
-    {
-        var read = ReadExact(
-            decodeStdout,
-            state.InBuffer,
-            0,
-            state.InBytes,
-            token).Result;
-
-        if (read != state.InBytes)
-            return false;
-
-        Marshal.Copy(state.InBuffer, 0, state.FrameMat.Data, state.InBytes);
-        return true;
-    }
-
-    private Mat ProcessFrame(
-        Mat inputFrame,
-        FrameProcessingState state,
-        SingleTask job,
-        CancellationToken token)
-    {
-        var (objects, primary) =
-            _tracker.SelectTrackedObject(job, inputFrame, state.Kalman.LastMeasurement);
-
-        state.Camera.Update(primary);
-        var roi = state.Camera.Roi;
-
-        if (job.Job.Debug)
-        {
-            DebugOverlay.DrawDebug(inputFrame, objects, state.Camera, state.Kalman);
-            inputFrame.CopyTo(state.OutMat);
-        }
-        else
-        {
-            using var cropped = new Mat(inputFrame, roi);
-            cropped.CopyTo(state.OutMat);
-        }
-
-        if (state.Enhancer != null)
-        {
-            if (state.Enhancer.TryProcessFrame(state.OutMat, out var enhanced, token))
-                return enhanced;
-
-            return state.OutMat;
-        }
-
-        return state.OutMat;
-    }
-
-    private void EncodeFrame(
-        Mat frame,
-        FrameProcessingState state,
-        Stream encodeStdin)
-    {
-        Marshal.Copy(frame.Data, state.OutBuffer, 0, state.OutBytes);
-        encodeStdin.Write(state.OutBuffer, 0, state.OutBytes);
-    }
-    
-    // ------------------------------------------------------------
-    // FFmpeg helpers
-    // ------------------------------------------------------------
-
-    private async Task<Process> StartFfmpegDecode(
-        string inputFile,
-        double start,
-        double length,
-        int? rotate,
-        bool plainText,
-        CancellationToken token)
     {
         var ss = start .ToString("0.###", CultureInfo.InvariantCulture);
         var t  = length.ToString("0.###", CultureInfo.InvariantCulture);
 
-        var rotateStr = GetRorationArg(rotate);
+        var rotateStr = "";
+        if (rotate != null)
+        {
+            switch (rotate.Value)
+            {
+                case 90:  rotateStr = ",transpose=1";  break;
+                case 180: rotateStr = ",transpose=PI"; break;
+                case 270: rotateStr = ",transpose=2";  break;
+            }
+        }
 
         var args =
-            $"-i \"{inputFile}\" -ss {ss} -t {t} " +
+    $"-i \"{inputFile}\" -ss {ss} -t {t} " +
-            "-an -sn " +
+    "-an -sn " +
-            $"-vf format=bgr24{rotateStr} " +
+    $"-vf format=bgr24{rotateStr} " +
-            "-f rawvideo -";
+    "-f rawvideo -";
 
         var psi = new ProcessStartInfo
         {
@@ -353,12 +202,12 @@ public sealed class TrackingSplitter : LoggingBase, ISegmentProcessor
 
         var fileName = Path.GetFileName(inputFile);
 
-        _ = Task.Run(async () =>
+        _ = Task.Run(() =>
         {
             try
             {
                 string? line;
-                while ((line = await p.StandardError.ReadLineAsync(token)) != null)
+                while ((line = p.StandardError.ReadLine()) != null)
                     if (plainText)
                         LogInfo($"[ffmpeg-decode] {fileName}: {line}");
             }
@@ -368,66 +217,34 @@ public sealed class TrackingSplitter : LoggingBase, ISegmentProcessor
         return p;
     }
 
-    public static string GetRorationArg(int? rotate)
+    private Process StartFfmpegEncode(
-    {
-        var rotateStr = "";
-        if (rotate != null)
-        {
-            switch (rotate.Value)
-            {
-                case 90: rotateStr = ",transpose=1"; break;
-                case 180: rotateStr = ",transpose=PI"; break;
-                case 270: rotateStr = ",transpose=2"; break;
-            }
-        }
-        return rotateStr;
-    }
-
-    private async Task<Process> StartFfmpegEncode(
         string inputFile,
         string outputFile,
         double start,
         double length,
         int width,
         int height,
-        VideoInfo info,
+        double fps,
         string[] passthrough,
-        bool plainText,
+        bool plainText)
-        CancellationToken token)
     {
         var pass   = passthrough.Length > 0 ? string.Join(" ", passthrough) : "";
-        var fpsStr = info.Fps.ToString("0.###", CultureInfo.InvariantCulture);
+        var fpsStr = fps.ToString("0.###", CultureInfo.InvariantCulture);
         var ss     = start.ToString("0.###", CultureInfo.InvariantCulture);
         var t      = length.ToString("0.###", CultureInfo.InvariantCulture);
 
-        var sarArg = !string.IsNullOrWhiteSpace(info.SampleAspectRatio)
-            ? $"-vf setsar={info.SampleAspectRatio} "
-            : "";
-
-        var darArg = "";
-        if (info.Sar is { } s)
-        {
-            var darNum = width  * s.X;
-            var darDen = height * s.Y;
-
-            var dn = (int)Math.Min(int.MaxValue, Math.Max(int.MinValue, darNum));
-            var dd = (int)Math.Min(int.MaxValue, Math.Max(int.MinValue, darDen));
-            ReduceFraction(ref dn, ref dd);
-
-            if (dn > 0 && dd > 0)
-                darArg = $"-aspect {dn}:{dd} ";
-        }
-
         var args =
             "-y " +
             $"-f rawvideo -pix_fmt bgr24 -s {width}x{height} -r {fpsStr} -i - " +
             $"-ss {ss} -i \"{inputFile}\" " +
             "-map 0:v:0 -map 1:a:0? -shortest " +
             "-c:v h264_nvenc -preset p4 -b:v 8M -pix_fmt yuv420p " +
-            sarArg + darArg +
             "-c:a copy " +
             pass + $" \"{outputFile}\"";
 
+        // "-c:a aac -b:a 192k " +
+
+
         var psi = new ProcessStartInfo
         {
             FileName              = "ffmpeg",
@@ -443,14 +260,16 @@ public sealed class TrackingSplitter : LoggingBase, ISegmentProcessor
 
         var fileName = Path.GetFileName(outputFile);
 
-        _ = Task.Run(async () =>
+        _ = Task.Run(() =>
         {
             try
             {
                 string? line;
-                while ((line = await p.StandardError.ReadLineAsync(token)) != null)
+                while ((line = p.StandardError.ReadLine()) != null)
+                {
                     if (plainText)
                         LogInfo($"[ffmpeg-encode] {fileName}: {line}");
+                }
             }
             catch { }
         });
@@ -458,38 +277,14 @@ public sealed class TrackingSplitter : LoggingBase, ISegmentProcessor
         return p;
     }
 
-    private static void ReduceFraction(ref int num, ref int den)
+    // ---------- helpers ----------
-    {
-        int Gcd(int a, int b)
-        {
-            while (b != 0)
-            {
-                var t = b;
-                b = a % b;
-                a = t;
-            }
-            return a;
-        }
 
-        var g = Gcd(Math.Abs(num), Math.Abs(den));
+    private static int ReadExact(Stream s, byte[] buffer, int offset, int count)
-        if (g > 1)
-        {
-            num /= g;
-            den /= g;
-        }
-    }
-
-    private static async Task<int> ReadExact(
-        Stream s,
-        byte[] buffer,
-        int offset,
-        int count,
-        CancellationToken token)
     {
         var total = 0;
         while (total < count)
         {
-            var read = await s.ReadAsync(buffer, offset + total, count - total, token);
+            var read = s.Read(buffer, offset + total, count - total);
             if (read <= 0)
                 break;
             total += read;
@@ -497,5 +292,83 @@ public sealed class TrackingSplitter : LoggingBase, ISegmentProcessor
         return total;
     }
 
+    private void DrawDebug(
+        Mat frame,
+        System.Collections.Generic.List<(Rect box, Point2f center)> objects,
+        CameraController camera,
+        KalmanTracker kalman)
+    {
+        if (camera.ObjectBox.HasValue)
+        {
+            var fb = camera.ObjectBox.Value;
+            Cv2.Rectangle(frame, fb, Scalar.LimeGreen, 2);
+        }
 
+        Cv2.Circle(frame,
+            new Point((int)camera.SmoothedCenter.X, (int)camera.SmoothedCenter.Y),
+            6, Scalar.LimeGreen, -1);
+
+        Cv2.Rectangle(frame, camera.Roi,
+            camera.ObjectCenter.HasValue ? Scalar.Yellow : Scalar.Red, 3);
+
+        DrawText(frame, $"Faces: {objects.Count}", 20, 40, Scalar.White);
+        DrawText(frame, $"LostFrames: {camera.LostFrames}", 20, 70, Scalar.White);
+        DrawText(frame, $"Noise: {kalman.CurrentNoise:F3}", 20, 130, Scalar.White);
+        DrawText(frame, $"Camera: {camera.CameraCenter.X:F1},{camera.CameraCenter.Y:F1}", 20, 160, Scalar.White);
+    }
+
+    private static void DrawText(Mat img, string text, int x, int y, Scalar color)
+    {
+        Cv2.PutText(img, text, new Point(x, y),
+            HersheyFonts.HersheySimplex, 0.6, color, 2);
+    }
+
+    private (Rect box, Point2f center)? SelectTrackedObject(
+        List<(Rect box, Point2f center)> foundObjects,
+        Point2f? previousCenter)
+    {
+        if (foundObjects == null || foundObjects.Count == 0)
+            return null;
+
+        if (!previousCenter.HasValue)
+        {
+            var bestIndex = 0;
+            var bestArea  = float.MinValue;
+
+            for (int i = 0; i < foundObjects.Count; i++)
+            {
+                var f    = foundObjects[i];
+                var area = f.box.Width * f.box.Height;
+                if (area > bestArea)
+                {
+                    bestArea = area;
+                    bestIndex = i;
+                }
+            }
+
+            return foundObjects[bestIndex];
+        }
+        else
+        {
+            var prev      = previousCenter.Value;
+            var bestIndex = 0;
+            var bestDist2 = float.MaxValue;
+
+            for (int i = 0; i < foundObjects.Count; i++)
+            {
+                var f  = foundObjects[i];
+                var dx = f.center.X - prev.X;
+                var dy = f.center.Y - prev.Y;
+                var d2 = dx * dx + dy * dy;
+
+                if (d2 < bestDist2)
+                {
+                    bestDist2 = d2;
+                    bestIndex = i;
+                }
+            }
+
+            return foundObjects[bestIndex];
+        }
+    }
 }

splitter-cli/UltraFaceDetector.cs

@@ -1,7 +1,8 @@
 using System.Runtime.InteropServices;
+using OpenCvSharp;
 using UltraFaceDotNet;
 
-namespace splitter.algo;
+namespace splitter;
 
 public sealed class UltraFaceDetector: LoggingBase, IDisposable, IObjectDetector
 {
@@ -23,14 +24,14 @@ public sealed class UltraFaceDetector: LoggingBase, IDisposable, IObjectDetector
         _ultraFace = UltraFace.Create(param);
     }
 
-    public List<DetectedPerson> DetectAll(SingleTask job, Mat frameCont)
+    public List<(Rect box, Point2f center)> DetectAll(Mat frameCont)
     {
         // Convert to byte[] for UltraFace
         var bytesFull = frameCont.Rows * frameCont.Cols * frameCont.ElemSize();
         var bgr = new byte[bytesFull];
         Marshal.Copy(frameCont.Data, bgr, 0, bytesFull);
 
-        var results = new List<DetectedPerson>();
+        var results = new List<(Rect box, Point2f center)>();
 
         if (bgr == null || bgr.Length == 0)
             return results;
@@ -51,10 +52,10 @@ public sealed class UltraFaceDetector: LoggingBase, IDisposable, IObjectDetector
 
                 foreach (var f in faces)
                 {
-                    var x1 = (int)f.X1;
+                    int x1 = (int)f.X1;
-                    var y1 = (int)f.Y1;
+                    int y1 = (int)f.Y1;
-                    var x2 = (int)f.X2;
+                    int x2 = (int)f.X2;
-                    var y2 = (int)f.Y2;
+                    int y2 = (int)f.Y2;
 
                     var rect = new Rect(
                     x1,
@@ -69,7 +70,7 @@ public sealed class UltraFaceDetector: LoggingBase, IDisposable, IObjectDetector
                     rect.X + rect.Width / 2f,
                     rect.Y + rect.Height / 2f);
 
-                    results.Add(new DetectedPerson{ Box = rect, Center = center });
+                    results.Add((rect, center));
                 }
             }
         }

splitter-cli/VideoRotationSampler.cs

@@ -1,12 +1,13 @@
-using System.Diagnostics;
+using OpenCvSharp;
+using System.Diagnostics;
 
-namespace splitter.probe;
+namespace splitter;
 
 public sealed class VideoRotationSampler
 {
     private readonly FrameRotationDetector _detector = new FrameRotationDetector();
 
-    public static int    RotationDetectorSampleCount  = 10;
+    public static int    RotationDetectorSampleCount  = 20;
     public static double RotationDetectorSampleLength = 0.15;  // seconds to decode per probe
     public static int    RotationDetectorFrameWidth   = 320;
     public static int    RotationDetectorFrameHeight  = 180;
@@ -15,22 +16,19 @@ public sealed class VideoRotationSampler
     private readonly byte[] _buffer;
     private readonly Mat _frameMat;
 
-    public VideoRotationSampler(IDictionary<string, string>? overrides)
+    public VideoRotationSampler(SingleJob _master)
     {
-        if (overrides != null)
+        if (_master.Parameters.TryGetValue("RotationDetectorSampleCount", out var s))
-        {
+            RotationDetectorSampleCount  = int.Parse(s);
-            if (overrides.TryGetValue("RotationDetectorSampleCount", out var s))
+        if (_master.Parameters.TryGetValue("RotationDetectorSampleLength", out s))
-                RotationDetectorSampleCount = int.Parse(s);
+            RotationDetectorSampleLength = double.Parse(s);
-            if (overrides.TryGetValue("RotationDetectorSampleLength", out s))
+        if (_master.Parameters.TryGetValue("RotationDetectorFrameWidth", out s))
-                RotationDetectorSampleLength = double.Parse(s);
+            RotationDetectorFrameWidth   = int.Parse(s);
-            if (overrides.TryGetValue("RotationDetectorFrameWidth", out s))
+        if (_master.Parameters.TryGetValue("RotationDetectorFrameHeight", out s))
-                RotationDetectorFrameWidth = int.Parse(s);
+            RotationDetectorFrameHeight  = int.Parse(s);
-            if (overrides.TryGetValue("RotationDetectorFrameHeight", out s))
-                RotationDetectorFrameHeight = int.Parse(s);
-        }
 
-        var w = RotationDetectorFrameWidth;
+        int w = RotationDetectorFrameWidth;
-        var h = RotationDetectorFrameHeight;
+        int h = RotationDetectorFrameHeight;
 
         _buffer    = new byte[w * h * 3];                  // raw BGR24 buffer
         _frameMat  = new Mat(h, w, MatType.CV_8UC3);       // wraps buffer
@@ -38,29 +36,27 @@ public sealed class VideoRotationSampler
 
     public async Task<int> DetectRotationAsync(
          string inputFile,
-         double videoLengthSeconds,
+         double videoLengthSeconds)
-         CancellationToken token)
     {
         if (videoLengthSeconds <= 0)
             return 0;
 
         var rotations = new List<int>();
 
-        for (var i = 0; i < RotationDetectorSampleCount; i++)
+        for (int i = 0; i < RotationDetectorSampleCount; i++)
         {
-            var t = videoLengthSeconds * (i + 1) / (RotationDetectorSampleCount + 1);
+            double t = videoLengthSeconds * (i + 1) / (RotationDetectorSampleCount + 1);
 
             var frame = await DecodeSingleFrameAsync(
                 inputFile,
                 t,
                 RotationDetectorSampleLength,
                 RotationDetectorFrameWidth,
-                RotationDetectorFrameHeight,
+                RotationDetectorFrameHeight);
-                token);
 
             if (frame != null && !frame.Empty())
             {
-                var rot = _detector.GetRotation(frame);
+                int rot = _detector.GetRotation(frame);
                 rotations.Add(rot);
             }
         }
@@ -80,8 +76,8 @@ public sealed class VideoRotationSampler
             counts[v]++;
         }
 
-        var best = 0;
+        int best = 0;
-        var bestCount = 0;
+        int bestCount = 0;
 
         foreach (var kv in counts)
         {
@@ -100,21 +96,18 @@ public sealed class VideoRotationSampler
         double start,
         double length,
         int width,
-        int height,
+        int height)
-        CancellationToken token)
     {
         var p = StartFfmpegDecode(inputFile, start, length, rotate: null, plainText: false);
 
-        var needed = _buffer.Length;
+        int needed = _buffer.Length;
-        var read = 0;
+        int read = 0;
 
         using var stdout = p.StandardOutput.BaseStream;
 
         while (read < needed)
         {
-            token.ThrowIfCancellationRequested();
+            int r = await stdout.ReadAsync(_buffer, read, needed - read);
-
-            var r = await stdout.ReadAsync(_buffer, read, needed - read, token);
             if (r == 0)
                 return null;
             read += r;

splitter-cli/YoloOnnxObjectDetector.cs

@@ -1,10 +1,11 @@
 using System.Runtime.CompilerServices;
 using Microsoft.ML.OnnxRuntime;
 using Microsoft.ML.OnnxRuntime.Tensors;
+using OpenCvSharp;
 
-namespace splitter.algo;
+namespace splitter;
 
-public sealed class YoloV8ObjectDetector : LoggingBase, IObjectDetector, IDisposable
+public sealed class YoloOnnxObjectDetector : LoggingBase, IObjectDetector, IDisposable
 {
     private readonly InferenceSession _session;
     private readonly string _inputName;
@@ -32,7 +33,7 @@ public sealed class YoloV8ObjectDetector : LoggingBase, IObjectDetector, IDispos
     private readonly List<Detection> _nmsBuffer  = new(256);
 
     // Reusable result list
-    private readonly List<DetectedPerson> _results = new(64);
+    private readonly List<(Rect box, Point2f center)> _results = new(64);
 
     private readonly float _inv255 = 1f / 255f;
 
@@ -54,7 +55,7 @@ public sealed class YoloV8ObjectDetector : LoggingBase, IObjectDetector, IDispos
         }
     }
 
-    public YoloV8ObjectDetector(ILogger logger) : base(logger, -1)
+    public YoloOnnxObjectDetector(ILogger logger) : base(logger, -1)
     {
         var options = new SessionOptions();
         options.AppendExecutionProvider_DML();
@@ -78,7 +79,7 @@ public sealed class YoloV8ObjectDetector : LoggingBase, IObjectDetector, IDispos
         _inputs.Add(NamedOnnxValue.CreateFromTensor(_inputName, _inputTensor));
     }
 
-    public List<DetectedPerson> DetectAll(SingleTask job, Mat frameCont)
+    public List<(Rect box, Point2f center)> DetectAll(Mat frameCont)
     {
         if (frameCont.Empty())
         {
@@ -125,24 +126,28 @@ public sealed class YoloV8ObjectDetector : LoggingBase, IObjectDetector, IDispos
 
         // Build reusable result list
         _results.Clear();
-        for (var i = 0; i < final.Count; i++)
+        for (int i = 0; i < final.Count; i++)
         {
             var d = final[i];
 
-            var x = (int)d.X;
+            int x = (int)d.X;
-            var y = (int)d.Y;
+            int y = (int)d.Y;
-            var w = (int)d.Width;
+            int w = (int)d.Width;
-            var h = (int)d.Height;
+            int h = (int)d.Height;
 
             x = Math.Clamp(x, 0, frameCont.Width - 1);
             y = Math.Clamp(y, 0, frameCont.Height - 1);
             w = Math.Clamp(w, 1, frameCont.Width - x);
             h = Math.Clamp(h, 1, frameCont.Height - y);
 
+            // Ignore detections starting in the lower 1/2 of the frame
+            if (y > frameCont.Height * 0.5f)
+                continue;
+
             var rect   = new Rect(x, y, w, h);
             var center = new Point2f(x + w / 2f, y + h / 2f);
 
-            _results.Add(new DetectedPerson{ Box = rect, Center = center });
+            _results.Add((rect, center));
         }
 
         return _results;
@@ -151,30 +156,30 @@ public sealed class YoloV8ObjectDetector : LoggingBase, IObjectDetector, IDispos
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     private void FillInputTensor(Mat rgb)
     {
-        var height = _inputHeight;
+        int height = _inputHeight;
-        var width  = _inputWidth;
+        int width  = _inputWidth;
 
         // NCHW: [1, 3, H, W]
-        var planeSize = height * width;
+        int planeSize = height * width;
 
         Span<float> dst = _inputBuffer.AsSpan();
 
         unsafe
         {
-            for (var y = 0; y < height; y++)
+            for (int y = 0; y < height; y++)
             {
-                var rowPtr = (byte*)rgb.Ptr(y).ToPointer();
+                byte* rowPtr = (byte*)rgb.Ptr(y).ToPointer();
                 var rowSpan = new Span<byte>(rowPtr, width * 3);
 
-                var srcIndex = 0;
+                int srcIndex = 0;
 
-                for (var x = 0; x < width; x++)
+                for (int x = 0; x < width; x++)
                 {
-                    var r = rowSpan[srcIndex + 0];
+                    byte r = rowSpan[srcIndex + 0];
-                    var g = rowSpan[srcIndex + 1];
+                    byte g = rowSpan[srcIndex + 1];
-                    var b = rowSpan[srcIndex + 2];
+                    byte b = rowSpan[srcIndex + 2];
 
-                    var offset = y * width + x;
+                    int offset = y * width + x;
 
                     // channel 0: R
                     dst[offset] = r * _inv255;
@@ -201,27 +206,27 @@ public sealed class YoloV8ObjectDetector : LoggingBase, IObjectDetector, IDispos
         detections.Clear();
 
         // YOLOv8 output: [1, 84, 8400]
-        var channels = output.Dimensions[1]; // 84
+        int channels = output.Dimensions[1]; // 84
-        var count    = output.Dimensions[2]; // 8400
+        int count    = output.Dimensions[2]; // 8400
 
-        var xScale = (float)originalWidth  / 640f;
+        float xScale = (float)originalWidth  / 640f;
-        var yScale = (float)originalHeight / 640f;
+        float yScale = (float)originalHeight / 640f;
 
-        for (var i = 0; i < count; i++)
+        for (int i = 0; i < count; i++)
         {
-            var x = output[0, 0, i];
+            float x = output[0, 0, i];
-            var y = output[0, 1, i];
+            float y = output[0, 1, i];
-            var w = output[0, 2, i];
+            float w = output[0, 2, i];
-            var h = output[0, 3, i];
+            float h = output[0, 3, i];
 
-            var classScore = output[0, 4 + classIndex, i];
+            float classScore = output[0, 4 + classIndex, i];
             if (classScore < scoreThreshold)
                 continue;
 
-            var left   = (x - w / 2f) * xScale;
+            float left   = (x - w / 2f) * xScale;
-            var top    = (y - h / 2f) * yScale;
+            float top    = (y - h / 2f) * yScale;
-            var width  = w * xScale;
+            float width  = w * xScale;
-            var height = h * yScale;
+            float height = h * yScale;
 
             detections.Add(new Detection
             (
@@ -248,12 +253,12 @@ public sealed class YoloV8ObjectDetector : LoggingBase, IObjectDetector, IDispos
         // Sort in-place by score descending
         detections.Sort(static (a, b) => b.Score.CompareTo(a.Score));
 
-        for (var i = 0; i < detections.Count; i++)
+        for (int i = 0; i < detections.Count; i++)
         {
             var candidate = detections[i];
-            var keep = true;
+            bool keep = true;
 
-            for (var j = 0; j < nmsBuffer.Count; j++)
+            for (int j = 0; j < nmsBuffer.Count; j++)
             {
                 if (IoU(candidate, nmsBuffer[j]) >= nmsThreshold)
                 {
@@ -272,23 +277,23 @@ public sealed class YoloV8ObjectDetector : LoggingBase, IObjectDetector, IDispos
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     private static float IoU(in Detection a, in Detection b)
     {
-        var x1 = MathF.Max(a.X, b.X);
+        float x1 = MathF.Max(a.X, b.X);
-        var y1 = MathF.Max(a.Y, b.Y);
+        float y1 = MathF.Max(a.Y, b.Y);
-        var x2 = MathF.Min(a.X + a.Width,  b.X + b.Width);
+        float x2 = MathF.Min(a.X + a.Width,  b.X + b.Width);
-        var y2 = MathF.Min(a.Y + a.Height, b.Y + b.Height);
+        float y2 = MathF.Min(a.Y + a.Height, b.Y + b.Height);
 
-        var interW = x2 - x1;
+        float interW = x2 - x1;
         if (interW <= 0f) return 0f;
 
-        var interH = y2 - y1;
+        float interH = y2 - y1;
         if (interH <= 0f) return 0f;
 
-        var interArea = interW * interH;
+        float interArea = interW * interH;
 
-        var areaA = a.Width * a.Height;
+        float areaA = a.Width * a.Height;
-        var areaB = b.Width * b.Height;
+        float areaB = b.Width * b.Height;
 
-        var union = areaA + areaB - interArea;
+        float union = areaA + areaB - interArea;
         if (union <= 0f) return 0f;
 
         return interArea / union;

splitter-cli/algo/DetectedPerson.cs

@@ -1,8 +0,0 @@
-namespace splitter.algo;
-
-public struct DetectedPerson
-{
-    public ulong   Id;
-    public Rect    Box;
-    public Point2f Center;
-}

splitter-cli/algo/DummyDetector.cs

@@ -1,21 +0,0 @@
-namespace splitter.algo;
-
-public sealed class DummyDetector : IObjectDetector
-{
-    public List<DetectedPerson> DetectAll(SingleTask job, Mat frameCont)
-    {
-        var h   = job.Info.Height;
-        var w   = job.Info.Width;
-
-        var c = job.Job.GravitateTo;
-        var x = (int)(c.X * w);
-        var y = (int)(c.Y * h);
-
-        var center = new Point2f(x, y);
-        var rect = new Rect(x - 1, y - 1, 2, 2);
-
-        return [new DetectedPerson { Box = rect, Center = center }];
-    }
-
-    public void Dispose() {}
-}

splitter-cli/algo/IEmbeddingExtractor.cs

@@ -1,6 +0,0 @@
-namespace splitter.algo;
-
-public interface IEmbeddingExtractor : IDisposable
-{
-    float[] Extract(Mat frame, Rect box);
-}

splitter-cli/algo/IObjectDetector.cs

@@ -1,6 +0,0 @@
-namespace splitter.algo;
-
-public interface IObjectDetector : IDisposable
-{
-    List<DetectedPerson> DetectAll(SingleTask job, Mat frameCont);
-}

splitter-cli/algo/IObjectTracker.cs

@@ -1,6 +0,0 @@
-namespace splitter.algo;
-
-public interface IObjectTracker
-{
-    (List<DetectedPerson> objects, DetectedPerson? primary) SelectTrackedObject(SingleTask job, Mat frameMat, Point2f? lastMeasurement);
-}

splitter-cli/algo/ISegmentProcessor.cs

@@ -1,14 +0,0 @@
-namespace splitter.algo;
-
-public interface IFrameProcessingState
-{
-}
-
-public interface ISegmentProcessor
-{
-    IFrameProcessingState InitSegment(SingleTask job, CancellationToken token);
-    Mat? GetNextProcessedFrame( IFrameProcessingState processorState, CancellationToken token);
-    void FinishSegment(IFrameProcessingState processorState);
-
-    Task ProcessSegment( SingleTask job, CancellationToken token);
-}