Publishing finally fixed.

.github/workflows/publish.yml

@@ -2,9 +2,11 @@ name: Build and Publish
 
 on:
   push:
-    branches: [ "main" ]
+    tags:
-  pull_request:
+    - 'v*'
-    branches: [ "main" ]
+
+permissions:
+  contents: write
 
 jobs:
   build:
@@ -20,22 +22,34 @@ jobs:
         dotnet-version: 10.0.x
 
     - name: Restore
-      run: dotnet restore
+      run: dotnet restore -r win-x64
 
-    - name: Build Release
+    - name: 'Get Version'
-      env:
+      id: version
-        GITHUB_RUN_NUMBER: ${{ github.run_number }}
+      uses: battila7/get-version-action@v2
-        GITHUB_SHA: ${{ github.sha }}
-      run: dotnet build -c Release --no-restore
 
     - name: Publish Release
-      env:
+      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 }}
-        GITHUB_RUN_NUMBER: ${{ github.run_number }}
-        GITHUB_SHA: ${{ github.sha }}
-      run: dotnet publish -c Release -r win-x64 --self-contained true --no-build
 
-    - name: Upload Artifact
+    - name: Create ZIP
-      uses: actions/upload-artifact@v4
+      shell: pwsh
+      run: |
+        $publish = "splitter-cli/bin/Release/net10.0/win-x64/publish"
+        $version = "${{ steps.version.outputs.version-without-v }}"
+        $zip = "splitter-win-x64-$version.zip"
+
+        if (Test-Path $zip) { Remove-Item $zip }
+        Compress-Archive -Path "$publish/*" -DestinationPath $zip
+
+        Write-Host "Created $zip"
+
+    - name: Create GitHub Release
+      uses: softprops/action-gh-release@v2
       with:
-        name: splitter-win-x64
+        tag_name: ${{ github.ref_name }}
-        path: bin/Release/net10.0/win-x64/publish/
+        name: "Release ${{ github.ref_name }}"
+        files: splitter-win-x64-${{ steps.version.outputs.version-without-v }}.zip
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+

README.md

@@ -45,7 +45,6 @@ model.export(format="onnx", opset=12, half=False)   # FP32 ONNX
 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
@@ -104,7 +103,24 @@ This prevents the crop from drifting off‑screen and ensures that the output re
 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
 
@@ -114,7 +130,6 @@ splitter [<input.mp4> ...] [options] [--] <ffmpeg passthrough>
 
 Inputs may be provided directly, via `--file=...`, or using file masks such as `videos/*.mp4`.
 
----
 
 ## Options
 
@@ -133,6 +148,7 @@ All option names are preserved exactly, and descriptions are consolidated for cl
 | **--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). |
@@ -142,8 +158,6 @@ All option names are preserved exactly, and descriptions are consolidated for cl
 | **--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.
@@ -153,16 +167,12 @@ 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-cli/BuildInfo.cs

@@ -1,8 +1,12 @@
-namespace splitter;
+using System.Reflection;
+
+namespace splitter;
 
 public static class BuildInfo
 {
-    public static string Version     { get; } = ThisAssembly.Version;
+    private static readonly Assembly Assembly = typeof(BuildInfo).Assembly;
-    public static string BuildNumber { get; } = ThisAssembly.BuildNumber;
+
-    public static string Commit      { get; } = ThisAssembly.Commit;
+    public static string Version         => Assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>()?.InformationalVersion ?? "unknown";
+    public static string FileVersion     => Assembly.GetCustomAttribute<AssemblyFileVersionAttribute>()?.Version ?? "unknown";
+    public static string AssemblyVersion => Assembly.GetName().Version?.ToString() ?? "unknown";
 }

splitter-cli/BuildInfo.template

@@ -1,9 +0,0 @@
-// Auto-generated. Do not edit.
-namespace splitter;
-
-internal static class ThisAssembly
-{
-    public const string Version = "@VERSION@";
-    public const string BuildNumber = "@BUILDNUMBER@";
-    public const string Commit = "@COMMIT@";
-}

splitter-cli/CameraController.cs

@@ -1,5 +1,4 @@
-using System;
+using OpenCvSharp;
-using OpenCvSharp;
 
 namespace splitter;
 

splitter-cli/CommandLine.cs

@@ -1,8 +1,4 @@
-using System;
+using System.Globalization;
-using System.Collections.Generic;
-using System.Globalization;
-using System.Text;
-using OpenCvSharp;
 
 namespace splitter;
 
@@ -22,6 +18,7 @@ public class SingleJob
     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)
@@ -143,6 +140,10 @@ public sealed class CommandLine
             {
                 Master.SingleThreaded = true;
             }
+            else if (arg == "--rotate-auto")
+            {
+                Master.RotateAuto = true;
+            }
             else if (arg.StartsWith("--gravitate="))
             {
                 var val = arg.Substring("--gravitate=".Length);
@@ -197,6 +198,7 @@ public sealed class CommandLine
             ForceFixed             = Master.ForceFixed,
             SingleThreaded         = Master.SingleThreaded,
             Rotate                 = Master.Rotate,
+            RotateAuto             = Master.RotateAuto,
             Parameters             = new Dictionary<string, string>(Master.Parameters)
         }).ToArray();
 
@@ -328,7 +330,7 @@ public sealed class CommandLine
 
     public static void PrintVersion()
     {
-        Console.WriteLine($"...---=== splitter version {BuildInfo.Version} (commit {BuildInfo.Commit}, build {BuildInfo.BuildNumber}) ===---...");
+        Console.WriteLine($"...---=== splitter version {BuildInfo.Version} (file version: {BuildInfo.FileVersion}, build {BuildInfo.AssemblyVersion}) ===---...");
     }
 
     public static void PrintHelp()
@@ -371,6 +373,9 @@ Options:
   --rotate=<degrees>     Rotate video by specified degrees (90, 180, 270).
                          Useful for videos with incorrect orientation metadata.
 
+  --rotate-auto          Auto-detect rotation and rotate accordingly.
+                         Uses edge orientation statistics to determine if video is rotated.
+
   --estimate             Print calculated segment information and exit.
                          No splitting is performed.
 
@@ -393,7 +398,7 @@ Options:
   --debug                Show debug overlay during face tracking.
 
   -p:<name>=<value>      Set a custom parameter for the object detector.
-                         Example: -p:confidence=0.5
+                         Example: -p:EmaFactor=0.65
 
                          Tracking splitter defaults:
                             DropoutToleranceFrames = 20;
@@ -401,6 +406,12 @@ Options:
                             CameraEasing           = 0.03;
                             LostFreezeFrames       = 60;   
 
+                         Rotation detector defaults:
+                            RotationDetectorSampleCount  = 5;
+                            RotationDetectorSampleLength = 0.15; 
+                            RotationDetectorFrameWidth   = 320;
+                            RotationDetectorFrameHeight  = 180;
+
 Passthrough:
   Anything after -- is passed directly to ffmpeg.
 

splitter-cli/FrameRotationDetector.cs

@@ -0,0 +1,102 @@
+using OpenCvSharp;
+
+namespace splitter;
+
+public sealed class FrameRotationDetector
+{
+    private readonly Mat _gray;
+    private readonly Mat _gx;
+    private readonly Mat _gy;
+    private readonly Mat _mag;
+    private readonly Mat _angle;
+
+    private readonly float[] _hist;
+
+    private readonly int _w;
+    private readonly int _h;
+    private readonly int _bins;
+
+    public FrameRotationDetector(int width = 320, int height = 180, int bins = 36)
+    {
+        _w = width;
+        _h = height;
+        _bins = bins;
+
+        _gray = new Mat(height, width, MatType.CV_8UC1);
+        _gx = new Mat(height, width, MatType.CV_32F);
+        _gy = 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
+    }
+
+    public int GetRotation(Mat frame)
+    {
+        // 1. Grayscale
+        Cv2.CvtColor(frame, _gray, ColorConversionCodes.BGR2GRAY);
+
+        // 2. Sobel
+        Cv2.Sobel(_gray, _gx, MatType.CV_32F, 1, 0, 3);
+        Cv2.Sobel(_gray, _gy, MatType.CV_32F, 0, 1, 3);
+
+        // 3. Magnitude + angle
+        Cv2.CartToPolar(_gx, _gy, _mag, _angle, angleInDegrees: true);
+
+        // 4. Clear histogram
+        for (int i = 0; i < _bins; i++)
+            _hist[i] = 0;
+
+        float binSize = 180f / _bins;
+
+        unsafe
+        {
+            float* anglePtr = (float*)_angle.Data;
+            float* magPtr   = (float*)_mag.Data;
+
+            int total = _w * _h;
+
+            for (int i = 0; i < total; i++)
+            {
+                float m = magPtr[i];
+                if (m < 5f) continue; // ignore weak gradients
+
+                float a = anglePtr[i];
+                if (a < 0) a += 360f;
+                a = a % 180f;
+
+                int bin = (int)(a / binSize);
+                if (bin < 0) bin = 0;
+                if (bin >= _bins) bin = _bins - 1;
+
+                _hist[bin] += m;
+            }
+        }
+
+        // 5. Energy around 0° vs 90°
+        float e0 = 0, e90 = 0;
+        int window = 3;
+
+        int bin0  = 0;
+        int bin90 = _bins / 2;
+
+        for (int i = -window; i <= window; i++)
+        {
+            e0 += _hist[Wrap(bin0 + i)];
+            e90 += _hist[Wrap(bin90 + i)];
+        }
+
+        // 6. Decide upright vs sideways
+        if (e90 > e0 * 1.6f)
+            return 90;   // sideways
+
+        return 0;         // upright (concert default)
+    }
+
+    private int Wrap(int b)
+    {
+        if (b < 0) return b + _bins;
+        if (b >= _bins) return b - _bins;
+        return b;
+    }
+}

splitter-cli/IObjectDetector.cs

@@ -4,5 +4,5 @@ namespace splitter;
 
 public interface IObjectDetector : IDisposable
 {
-    List<(Rect box, Point2f center)> DetectAll(Mat frameCont, int width, int height);
+    List<(Rect box, Point2f center)> DetectAll(Mat frameCont);
 }

splitter-cli/ISegmentProcessor.cs

@@ -1,8 +1,4 @@
-using System;
+namespace splitter;
-using System.Collections.Generic;
-using System.Text;
-
-namespace splitter;
 
 public interface ISegmentProcessor
 {

splitter-cli/LoggingBase.cs

@@ -1,5 +1,4 @@
-using System;
+namespace splitter;
-namespace splitter;
 
 public abstract class LoggingBase(ILogger _logger, int _progressLine)
 {

splitter-cli/ProbeVideo.cs

@@ -1,8 +1,5 @@
-using System;
+using System.Diagnostics;
-using System.Collections.Generic;
-using System.Diagnostics;
 using System.Globalization;
-using System.Text;
 
 namespace splitter;
 
@@ -11,12 +8,31 @@ public record VideoInfo(
     int Width,
     int Height,
     double Fps,
-    double Bitrate
+    double Bitrate,
+    int Rotation = 0
 );
 
 public static class ProbeVideo
 {
-    public static VideoInfo Probe(string inputFile)
+    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 " +

splitter-cli/Properties/launchSettings.json

@@ -10,7 +10,7 @@
     },
     "Debug": {
       "commandName": "Project",
-      "commandLineArgs": "\"C:\\Users\\uncls\\Pictures\\2026\\2026 - Secret Rule\\20260426_212004.mp4\" --crop --detect=body --debug --single-thread --text"
+      "commandLineArgs": "\"C:\\Users\\uncls\\Pictures\\2026\\2026 - Laura Cox\\Video\\MAH00041.MP4\" --rotate-auto"
     }
   }
 }

splitter-cli/SimpleSplitter.cs

@@ -1,9 +1,5 @@
-using System;
+using System.Diagnostics;
-using System.Collections.Generic;
-using System.Diagnostics;
 using System.Globalization;
-using System.Text;
-using FFmpeg.AutoGen;
 
 namespace splitter;
 

splitter-cli/SpectreConsoleLogger.cs

@@ -1,9 +1,4 @@
-using System;
+using System.Text;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
 using Spectre.Console;
 using Spectre.Console.Rendering;
 
@@ -178,7 +173,7 @@ public sealed class SpectreConsoleLogger : ILogger, IDisposable
 
         var layout = new Layout("root")
             .SplitRows(
-                new Layout("progress") { Size = Math.Max(3, numberOfProcessesSnapshot + 2) },
+                new Layout("progress") { Size = Math.Max(3, numberOfProcessesSnapshot + 4) },
                 new Layout("log")
                 //new Layout("buttons") { Size = 3 }
             );
@@ -233,8 +228,8 @@ public sealed class SpectreConsoleLogger : ILogger, IDisposable
         foreach (var log in slice)
         {
             var time = log.Timestamp.ToString("HH:mm:ss");
-            var timeColor = "deepskyblue1";          // dark-ish blue
+            var timeColor = "deepskyblue1";
-            var prefixColor = "lightpink1";          // light magenta
+            var prefixColor = "lightpink1";
             var msgColor = MapConsoleColor(log.Color);
 
             var line =
@@ -245,38 +240,10 @@ public sealed class SpectreConsoleLogger : ILogger, IDisposable
             rows.Add(new Markup(line));
         }
 
-        IRenderable content =
+        if (rows.Count == 0)
-        rows.Count == 0
+            return new Markup("[grey]No log messages yet.[/]");
-            ? new Markup("[grey]No log messages yet.[/]")
-            : new Rows(rows);
 
-        var panel = new Panel(content)
+        return new Rows(rows);
-        {
-            Header = new PanelHeader("Log", Justify.Left),
-            Border = BoxBorder.Rounded,
-            Expand = true
-        };
-
-        return panel;
-    }
-
-
-    private static IRenderable BuildButtonsPanel()
-    {
-        // Visual [ Cancel ] button; key handling is in RunInputLoopAsync
-        var text = new Markup("[bold white on red] Cancel [/]");
-        var grid = new Grid();
-        grid.AddColumn(new GridColumn().Centered());
-        grid.AddRow(text);
-
-        var panel = new Panel(grid)
-        {
-            Border = BoxBorder.Rounded,
-            Header = new PanelHeader("Actions", Justify.Left),
-            Expand = true
-        };
-
-        return panel;
     }
 
     // ---- Helpers ----
@@ -287,23 +254,23 @@ public sealed class SpectreConsoleLogger : ILogger, IDisposable
     private static string MapConsoleColor(ConsoleColor color) =>
         color switch
         {
-            ConsoleColor.Black => "black",
+            ConsoleColor.Black       => "black",
-            ConsoleColor.DarkBlue => "navy",
+            ConsoleColor.DarkBlue    => "navy",
-            ConsoleColor.DarkGreen => "green",
+            ConsoleColor.DarkGreen   => "green",
-            ConsoleColor.DarkCyan => "teal",
+            ConsoleColor.DarkCyan    => "teal",
-            ConsoleColor.DarkRed => "maroon",
+            ConsoleColor.DarkRed     => "maroon",
             ConsoleColor.DarkMagenta => "purple",
-            ConsoleColor.DarkYellow => "olive",
+            ConsoleColor.DarkYellow  => "olive",
-            ConsoleColor.Gray => "silver",
+            ConsoleColor.Gray        => "silver",
-            ConsoleColor.DarkGray => "grey",
+            ConsoleColor.DarkGray    => "grey",
-            ConsoleColor.Blue => "blue",
+            ConsoleColor.Blue        => "blue",
-            ConsoleColor.Green => "lime",
+            ConsoleColor.Green       => "lime",
-            ConsoleColor.Cyan => "aqua",
+            ConsoleColor.Cyan        => "aqua",
-            ConsoleColor.Red => "red",
+            ConsoleColor.Red         => "red",
-            ConsoleColor.Magenta => "fuchsia",
+            ConsoleColor.Magenta     => "fuchsia",
-            ConsoleColor.Yellow => "yellow",
+            ConsoleColor.Yellow      => "yellow",
-            ConsoleColor.White => "white",
+            ConsoleColor.White       => "white",
-            _ => "white"
+            _                        => "white"
         };
 
     /// <summary>

splitter-cli/TrackingSplitter.cs

@@ -1,9 +1,6 @@
-using System;
+using System.Diagnostics;
-using System.Diagnostics;
 using System.Globalization;
-using System.IO;
 using System.Runtime.InteropServices;
-using System.Threading.Tasks;
 using OpenCvSharp;
 
 namespace splitter;
@@ -112,7 +109,7 @@ public class TrackingSplitter : LoggingBase, ISegmentProcessor, IDisposable
             // input frame → Mat
             Marshal.Copy(inBuffer, 0, frameMat.Data, inBytes);
 
-            var objects = _detector.DetectAll(frameMat, videoWidth, videoHeight);
+            var objects = _detector.DetectAll(frameMat);
             var primary = SelectTrackedObject(objects, kalman.LastMeasurement);
 
             camera.Update(primary);

splitter-cli/UltraFaceDetector.cs

@@ -1,5 +1,4 @@
 using System.Runtime.InteropServices;
-using NcnnDotNet.Layers;
 using OpenCvSharp;
 using UltraFaceDotNet;
 
@@ -25,7 +24,7 @@ public sealed class UltraFaceDetector: LoggingBase, IDisposable, IObjectDetector
         _ultraFace = UltraFace.Create(param);
     }
 
-    public List<(Rect box, Point2f center)> DetectAll(Mat frameCont, int width, int height)
+    public List<(Rect box, Point2f center)> DetectAll(Mat frameCont)
     {
         // Convert to byte[] for UltraFace
         var bytesFull = frameCont.Rows * frameCont.Cols * frameCont.ElemSize();
@@ -44,8 +43,8 @@ public sealed class UltraFaceDetector: LoggingBase, IDisposable, IObjectDetector
                 using var mat = NcnnDotNet.Mat.FromPixels(
                 (IntPtr)p,
                 NcnnDotNet.PixelType.Bgr,     // BGR24 input
-                width,
+                frameCont.Width,
-                height);
+                frameCont.Height);
 
                 var faces = _ultraFace.Detect(mat);
                 if (faces == null)

splitter-cli/VideoRotationSampler.cs

@@ -0,0 +1,169 @@
+using OpenCvSharp;
+using System.Diagnostics;
+
+namespace splitter;
+
+public sealed class VideoRotationSampler
+{
+    private readonly FrameRotationDetector _detector = new FrameRotationDetector();
+
+    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;
+
+    // --- Zero-allocation buffers ---
+    private readonly byte[] _buffer;
+    private readonly Mat _frameMat;
+
+    public VideoRotationSampler(SingleJob _master)
+    {
+        if (_master.Parameters.TryGetValue("RotationDetectorSampleCount", out var s))
+            RotationDetectorSampleCount  = int.Parse(s);
+        if (_master.Parameters.TryGetValue("RotationDetectorSampleLength", out s))
+            RotationDetectorSampleLength = double.Parse(s);
+        if (_master.Parameters.TryGetValue("RotationDetectorFrameWidth", out s))
+            RotationDetectorFrameWidth   = int.Parse(s);
+        if (_master.Parameters.TryGetValue("RotationDetectorFrameHeight", out s))
+            RotationDetectorFrameHeight  = int.Parse(s);
+
+        int w = RotationDetectorFrameWidth;
+        int h = RotationDetectorFrameHeight;
+
+        _buffer    = new byte[w * h * 3];                  // raw BGR24 buffer
+        _frameMat  = new Mat(h, w, MatType.CV_8UC3);       // wraps buffer
+    }
+
+    public async Task<int> DetectRotationAsync(
+         string inputFile,
+         double videoLengthSeconds)
+    {
+        if (videoLengthSeconds <= 0)
+            return 0;
+
+        var rotations = new List<int>();
+
+        for (int i = 0; i < RotationDetectorSampleCount; i++)
+        {
+            double t = videoLengthSeconds * (i + 1) / (RotationDetectorSampleCount + 1);
+
+            var frame = await DecodeSingleFrameAsync(
+                inputFile,
+                t,
+                RotationDetectorSampleLength,
+                RotationDetectorFrameWidth,
+                RotationDetectorFrameHeight);
+
+            if (frame != null && !frame.Empty())
+            {
+                int rot = _detector.GetRotation(frame);
+                rotations.Add(rot);
+            }
+        }
+
+        if (rotations.Count == 0)
+            return 0;
+
+        return Majority(rotations);
+    }
+
+    private static int Majority(List<int> values)
+    {
+        var counts = new Dictionary<int, int>();
+        foreach (var v in values)
+        {
+            if (!counts.ContainsKey(v)) counts[v] = 0;
+            counts[v]++;
+        }
+
+        int best = 0;
+        int bestCount = 0;
+
+        foreach (var kv in counts)
+        {
+            if (kv.Value > bestCount)
+            {
+                best = kv.Key;
+                bestCount = kv.Value;
+            }
+        }
+
+        return best;
+    }
+
+    private async Task<Mat?> DecodeSingleFrameAsync(
+        string inputFile,
+        double start,
+        double length,
+        int width,
+        int height)
+    {
+        var p = StartFfmpegDecode(inputFile, start, length, rotate: null, plainText: false);
+
+        int needed = _buffer.Length;
+        int read = 0;
+
+        using var stdout = p.StandardOutput.BaseStream;
+
+        while (read < needed)
+        {
+            int r = await stdout.ReadAsync(_buffer, read, needed - read);
+            if (r == 0)
+                return null;
+            read += r;
+        }
+
+        try { p.Kill(); } catch { }
+
+        // Copy buffer → Mat (no new Mat)
+        System.Runtime.InteropServices.Marshal.Copy(_buffer, 0, _frameMat.Data, _buffer.Length);
+
+        return _frameMat;
+    }
+
+    private Process StartFfmpegDecode(
+        string inputFile,
+        double start,
+        double length,
+        int? rotate,
+        bool plainText)
+    {
+        var ss = start.ToString("0.###", System.Globalization.CultureInfo.InvariantCulture);
+        var t  = length.ToString("0.###", System.Globalization.CultureInfo.InvariantCulture);
+
+        // FFmpeg does the resize + format conversion
+        var args =
+            $"-ss {ss} -t {t} -i \"{inputFile}\" " +
+            "-an -sn " +
+            $"-vf scale={RotationDetectorFrameWidth}:{RotationDetectorFrameHeight},format=bgr24 " +
+            "-f rawvideo -";
+
+        var psi = new ProcessStartInfo
+        {
+            FileName               = "ffmpeg",
+            Arguments              = args,
+            RedirectStandardOutput = true,
+            RedirectStandardError  = true,
+            UseShellExecute        = false,
+            CreateNoWindow         = true
+        };
+
+        var p = new Process { StartInfo = psi };
+        p.Start();
+
+        // Optional stderr logging
+        _ = Task.Run(() =>
+        {
+            try
+            {
+                string? line;
+                while ((line = p.StandardError.ReadLine()) != null)
+                    if (plainText)
+                        Console.WriteLine($"[ffmpeg-decode] {line}");
+            }
+            catch { }
+        });
+
+        return p;
+    }
+}

splitter-cli/YoloOnnxObjectDetector.cs

@@ -1,8 +1,4 @@
-using System;
+using System.Runtime.CompilerServices;
-using System.Collections.Generic;
-using System.Linq;
-using System.Numerics;
-using System.Runtime.CompilerServices;
 using Microsoft.ML.OnnxRuntime;
 using Microsoft.ML.OnnxRuntime.Tensors;
 using OpenCvSharp;
@@ -83,7 +79,7 @@ public sealed class YoloOnnxObjectDetector : LoggingBase, IObjectDetector, IDisp
         _inputs.Add(NamedOnnxValue.CreateFromTensor(_inputName, _inputTensor));
     }
 
-    public List<(Rect box, Point2f center)> DetectAll(Mat frameCont, int width, int height)
+    public List<(Rect box, Point2f center)> DetectAll(Mat frameCont)
     {
         if (frameCont.Empty())
         {

splitter-cli/splitter.cs

@@ -1,7 +1,5 @@
 using System.Collections.Concurrent;
 using System.Diagnostics;
-using System.Globalization;
-using System.Text;
 using Spectre.Console;
 using splitter;
 
@@ -78,7 +76,7 @@ static partial class Program
         if (!Directory.Exists(job.OutputFolder))
             Directory.CreateDirectory(job.OutputFolder);
 
-        var info = ProbeVideo.Probe(job.InputFile);
+        var info = await ProbeVideo.Probe(job);
         if (info.Duration <= 0)
         {
             LogError($"{baseName}: Could not read duration.");

splitter-cli/splitter.csproj

@@ -27,40 +27,18 @@
     <EnableAVX2>true</EnableAVX2>
     <DebugType>none</DebugType>
     <DebugSymbols>false</DebugSymbols>
-    <SelfContained>true</SelfContained>
-    <PublishSingleFile>true</PublishSingleFile>
-    <PublishTrimmed>false</PublishTrimmed>
     <IncludeNativeLibrariesForSelfExtract>true</IncludeNativeLibrariesForSelfExtract>
-    <PublishReadyToRun>false</PublishReadyToRun>
+    <PublishReadyToRun>true</PublishReadyToRun>
   </PropertyGroup>
 
   <PropertyGroup>
     <Version>1.0.0</Version>
-    <SourceRevisionId>$(GITHUB_SHA)</SourceRevisionId>
+    <InformationalVersion>$(Version).$(BuildNumber)+$(SourceRevisionId)</InformationalVersion>
+    <AssemblyVersion>$(Version)</AssemblyVersion>
+    <FileVersion>$(Version).$(BuildNumber)</FileVersion>
   </PropertyGroup>
 
-  <PropertyGroup>
+    <Target Name="RemoveUnwantedFiles" AfterTargets="Publish" Condition="'$(Configuration)' == 'Release'">
-    <BuildNumber>$(GITHUB_RUN_NUMBER)</BuildNumber>
-  </PropertyGroup>
-
-  <Target Name="GenerateBuildInfo" BeforeTargets="BeforeCompile">
-    <ReadLinesFromFile File="BuildInfo.template">
-      <Output TaskParameter="Lines" ItemName="BuildInfoLines" />
-    </ReadLinesFromFile>
-
-    <ItemGroup>
-      <ProcessedBuildInfoLines Include="@(BuildInfoLines->Replace('@VERSION@', '$(Version)')->Replace('@BUILDNUMBER@', '$(BuildNumber)')->Replace('@COMMIT@', '$(SourceRevisionId)'))" />
-    </ItemGroup>
-
-    <WriteLinesToFile
-        File="BuildInfo.g.cs"
-        Overwrite="true"
-        Lines="@(ProcessedBuildInfoLines)" />
-  </Target>
-
-
-
-  <Target Name="RemoveUnwantedFiles" AfterTargets="Publish" Condition="'$(Configuration)' == 'Release'">
     <ItemGroup>
       <FilesToDelete Include="$(PublishDir)**\*.pdb" />
       <FilesToDelete Include="$(PublishDir)**\*.lib" />
@@ -71,6 +49,8 @@
 
 
   <ItemGroup>
+    <Compile Update="ThisAssembly.g.cs" />
+
     <Content Include="models/*.*">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>