Automatic crop size calculation. GravitateTo is in sync. Defaults appied at start.

Splitter-UI/Converters/ActionToIconConverter.cs

@@ -7,12 +7,15 @@ public sealed class ActionToIconConverter : IValueConverter
 {
     public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
     {
-        return value switch
+        if (value == null)
-        {
+            return null;
-            "crop"   => "\uf125", // FA7 crop
+
-            "rotate" => "\uf2f1", // FA7 rotate
+        var p = System.Convert.ToInt32(value);
-            _        => null
+        
-        };
+        return p == 0 
+            ? "\uf125" // FA7 crop
+            : "\uf2f1" // FA7 rotate
+            ;
     }
 
     public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)

Splitter-UI/Models/PreviewData.cs

@@ -1,6 +1,4 @@
-using Avalonia;
+namespace Splitter_UI.Models;
-
-namespace Splitter_UI.Models;
 
 public class PreviewData
 {

Splitter-UI/Program.cs

@@ -1,8 +1,6 @@
 using Avalonia;
 using Avalonia.Media;
 using Microsoft.Extensions.DependencyInjection;
-using splitter.algo;
-using splitter.tui;
 
 namespace Splitter_UI;
 

Splitter-UI/Services/AutoDecisionService.cs

@@ -1,6 +1,4 @@
-using NcnnDotNet.Layers;
+using OpenCvSharp.Dnn;
-using OpenCvSharp;
-using splitter.tui;
 
 namespace Splitter_UI.Services;
 
@@ -15,19 +13,63 @@ public sealed class AutoDecisionService(IThumbnailService _thumbnails, IFileProb
     {
         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);
             job.Thumbnail       = await _thumbnails.CreateThumbnailAsync(job.InputFile, job.Probe, rotateDegree: job.Rotate);
 
-            var sampler         = new VideoRotationSampler(null);
+            if (job.Probe.Width > job.Probe.Height)
-            job.Rotate          = await sampler.DetectRotationAsync(job.InputFile, job.Probe.Duration);
+            {
-            job.SuggestedAction = job.Rotate == 0 ? "crop" : "rotate";
-
-            if (job.SuggestedAction == "crop")
                 job.Detect = "body";
+                job.Rotate = 0;
+
+                CalculateCrop(job);
+            }
+            else
+            {
+                var sampler         = new VideoRotationSampler(null);
+                job.Rotate = await sampler.DetectRotationAsync(job.InputFile, job.Probe.Duration);
+                job.Detect = job.Rotate == 0 ? null : "body";
+            }
         }
         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;
+
+        float srcW = job.Probe.Width  * pixelAspect;
+        float srcH = job.Probe.Height;
+        var srcAR = srcW / srcH;
+
+        float cropH = srcH;
+        float cropW = cropH * targetAR;
+
+        if (cropW > srcW)
+        {
+            cropW = srcW;
+            cropH = cropW / targetAR;
+        }
+
+        float x = (srcW - cropW) * 0.5f;
+        float y = (srcH - cropH) * 0.5f;
+
+        float invPixelAspect = 1f / pixelAspect;
+
+        float cropW_px = cropW * invPixelAspect;
+        float cropH_px = cropH;
+
+        float x_px = x * invPixelAspect;
+        float y_px = y;
+
+        job.CropText = $"{(int)MathF.Round(cropW_px)},{(int)MathF.Round(cropH_px)}";
+    }
 }

Splitter-UI/Services/AvaloniaBitmapExtensions.cs

@@ -1,7 +1,6 @@
 using System.Runtime.InteropServices;
 using Avalonia;
 using Avalonia.Media.Imaging;
-using OpenCvSharp;
 
 namespace Splitter_UI.Services;
 

Splitter-UI/Services/DummyDetector.cs

@@ -1,7 +1,4 @@
-using OpenCvSharp;
+namespace Splitter_UI.Services;
-using splitter.algo;
-
-namespace Splitter_UI.Services;
 
 internal class DummyDetector : IObjectDetector
 {

Splitter-UI/Services/FileProbeService.cs

@@ -1,6 +1,4 @@
-using splitter.probe;
+namespace Splitter_UI.Services;
-
-namespace Splitter_UI.Services;
 
 public sealed class FileProbeService : IFileProbeService
 {

Splitter-UI/Services/GlobalLogger.cs

@@ -1,6 +1,4 @@
-using splitter.tui;
+namespace Splitter_UI.Services;
-
-namespace Splitter_UI.Services;
 
 internal class GlobalLogger(ILogService _logService) : ILogger
 {

Splitter-UI/Services/IFileProbeService.cs

@@ -1,6 +1,4 @@
-using splitter.probe;
+namespace Splitter_UI.Services;
-
-namespace Splitter_UI.Services;
 
 public interface IFileProbeService
 {

Splitter-UI/Services/IThumbnailService.cs

@@ -1,5 +1,4 @@
 using Avalonia.Media.Imaging;
-using splitter.probe;
 
 namespace Splitter_UI.Services;
 

Splitter-UI/Services/SingleThreadedDetector.cs

@@ -1,7 +1,4 @@
-using OpenCvSharp;
+namespace Splitter_UI.Services;
-using splitter.algo;
-
-namespace Splitter_UI.Services;
 
 public class SingleThreadedDetector<T>(IObjectDetector _detector) : IObjectDetector
     where T : IObjectDetector

Splitter-UI/Services/ThumbnailService.cs

@@ -2,7 +2,6 @@
 using Avalonia;
 using Avalonia.Media.Imaging;
 using Avalonia.Platform;
-using splitter.probe;
 
 namespace Splitter_UI.Services;
 

Splitter-UI/ViewModels/InspectorPaneViewModel.cs

@@ -16,11 +16,6 @@ public partial class InspectorPaneViewModel : ObservableObject
             "face", "body", "none"
         ];
 
-    public List<int> RotationAngles =>
-        [
-            0, 90, 180, 270
-        ];
-
     [RelayCommand]
     private void ApplyOverrides()
     {

Splitter-UI/ViewModels/JobViewModel.cs

@@ -5,9 +5,6 @@ using Avalonia.Media.Imaging;
 using Avalonia.Threading;
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
-using splitter.algo;
-using splitter.probe;
-using splitter.tui;
 
 namespace Splitter_UI.ViewModels;
 
@@ -19,7 +16,6 @@ public partial class JobViewModel : ObservableObject
     [ObservableProperty] private PreviewData?  _preview = new(null, [], null, new(0.5f, 0.5f));
     [ObservableProperty] private ProgressInfo? _progress;
     [ObservableProperty] private Bitmap?       _thumbnail;
-    [ObservableProperty] private string        _suggestedAction = "";
     [ObservableProperty] private double        _sliderLiveValue;
     [ObservableProperty] private double        _positionSeconds;
 
@@ -217,6 +213,13 @@ public partial class JobViewModel : ObservableObject
             entry.PropertyChanged += OnParameterChanged;
         }
 
+        PropertyChanged += (sender, e) =>
+        {
+            if (e.PropertyName == nameof(Probe))
+            {
+                OnPropertyChanged(nameof(DurationSeconds));
+            }
+        };
         ParametersList.CollectionChanged += OnParametersCollectionChanged;
 
         StepForwardCommand  = new RelayCommand(StepForward);

Splitter-UI/ViewModels/PreviewPaneViewModel.cs

@@ -1,6 +1,5 @@
 using System.ComponentModel;
 using CommunityToolkit.Mvvm.ComponentModel;
-using splitter.algo;
 
 namespace Splitter_UI.ViewModels;
 

Splitter-UI/Views/FileListView.axaml

@@ -82,7 +82,7 @@
                                                    VerticalAlignment="Center"/>
 
                                             <TextBlock FontFamily="{StaticResource FontAwesome}"
-                                                       Text="{Binding SuggestedAction, Converter={StaticResource ActionToIconConverter}}"
+                                                       Text="{Binding Rotate, Converter={StaticResource ActionToIconConverter}}"
                                                        FontSize="12"
                                                        HorizontalAlignment="Right"
                                                        Foreground="LimeGreen"/>

Splitter-UI/Views/MainWindow.axaml.cs

@@ -1,5 +1,3 @@
-using Avalonia.Controls;
-
 namespace Splitter_UI.Views;
 
 public partial class MainWindow : Avalonia.Controls.Window

Splitter-UI/Views/PreviewCanvas.cs

@@ -4,7 +4,6 @@ using Avalonia.Controls;
 using Avalonia.Input;
 using Avalonia.Media;
 using Avalonia.Threading;
-using splitter.algo;
 
 namespace Splitter_UI.Views;
 

Splitter-UI/Views/PreviewPane.axaml

@@ -14,7 +14,7 @@
                 Preview="{Binding Preview}"
                 Sar="{Binding Sar}"
                 RotateAngle="{Binding Rotate}"
-                GravitateTo="{Binding GravitateTo}"/>
+                GravitateTo="{Binding GravitateTo, Mode=TwoWay}"/>
 
             <Grid Grid.Row="1"
                   ColumnDefinitions="Auto,*,Auto"

splitter-cli/CommandLine.cs

@@ -1,5 +1,4 @@
 using System.Globalization;
-using splitter.algo;
 using splitter.util;
 
 namespace splitter;

splitter-cli/SimpleSplitter.cs

@@ -1,7 +1,5 @@
 using System.Diagnostics;
 using System.Globalization;
-using splitter.algo;
-using splitter.tui;
 
 namespace splitter;
 

splitter-cli/SingleJob.cs

@@ -1,5 +1,4 @@
 using System.Globalization;
-using splitter.algo;
 
 namespace splitter;
 

splitter-cli/TrackingSplitter.cs

@@ -1,9 +1,6 @@
 using System.Diagnostics;
 using System.Globalization;
 using System.Runtime.InteropServices;
-using OpenCvSharp;
-using splitter.algo;
-using splitter.tui;
 
 namespace splitter;
 

splitter-cli/algo/CameraController.cs

@@ -1,6 +1,4 @@
-using OpenCvSharp;
+namespace splitter.algo;
-
-namespace splitter.algo;
 
 public enum TrackState
 {

splitter-cli/algo/IObjectDetector.cs

@@ -1,6 +1,4 @@
-using OpenCvSharp;
+namespace splitter.algo;
-
-namespace splitter.algo;
 
 public interface IObjectDetector : IDisposable
 {

splitter-cli/algo/UltraFaceDetector.cs

@@ -1,6 +1,4 @@
 using System.Runtime.InteropServices;
-using OpenCvSharp;
-using splitter.tui;
 using UltraFaceDotNet;
 
 namespace splitter.algo;

splitter-cli/algo/YoloOnnxObjectDetector.cs

@@ -1,8 +1,6 @@
 using System.Runtime.CompilerServices;
 using Microsoft.ML.OnnxRuntime;
 using Microsoft.ML.OnnxRuntime.Tensors;
-using OpenCvSharp;
-using splitter.tui;
 
 namespace splitter.algo;
 

splitter-cli/probe/FfprobeFormat.cs

@@ -1,7 +1,4 @@
-using System;
+using System.Text.Json.Serialization;
-using System.Collections.Generic;
-using System.Text;
-using System.Text.Json.Serialization;
 
 namespace splitter.probe;
 

splitter-cli/probe/FfprobeResult.cs

@@ -1,9 +1,4 @@
-using System;
+namespace splitter.probe;
-using System.Collections.Generic;
-using System.Text;
-using static splitter.probe.ProbeVideo;
-
-namespace splitter.probe;
 
 public sealed class FfprobeResult
 {

splitter-cli/probe/FfprobeStream.cs

@@ -1,7 +1,4 @@
-using System;
+using System.Text.Json.Serialization;
-using System.Collections.Generic;
-using System.Text;
-using System.Text.Json.Serialization;
 
 namespace splitter.probe;
 

splitter-cli/probe/FrameRotationDetector.cs

@@ -1,6 +1,4 @@
-using OpenCvSharp;
+namespace splitter.probe;
-
-namespace splitter.probe;
 
 public sealed class FrameRotationDetector
 {

splitter-cli/probe/ProbeVideo.cs

@@ -2,7 +2,6 @@
 using System.Globalization;
 using System.Text.Json;
 using System.Text.Json.Serialization;
-using splitter.algo;
 
 namespace splitter.probe;
 

splitter-cli/probe/VideoInfo.cs

@@ -1,7 +1,4 @@
-using OpenCvSharp;
+namespace splitter.probe;
-using splitter.algo;
-
-namespace splitter.probe;
 
 public record VideoInfo(
     double Duration,

splitter-cli/probe/VideoRotationSampler.cs

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

splitter-cli/splitter.cs

@@ -2,9 +2,6 @@ using System.Collections.Concurrent;
 using System.Diagnostics;
 using Spectre.Console;
 using splitter;
-using splitter.algo;
-using splitter.probe;
-using splitter.tui;
 
 static partial class Program
 {

splitter-cli/util/SingleTask.cs

@@ -1,6 +1,4 @@
 using splitter;
-using splitter.algo;
-using splitter.probe;
 
 public record SingleTask(
     SingleJob Job,