Add video preview, source crop, find-videos, and render toasts

Bring the Video tab closer to Shorts with 4K preview stills and crop modes (none, auto, center, plus the visual editor). Settings store a default source folder so Find videos can collect output.avi sequences. Cap the FFmpeg log with auto-scroll, hide repeat spam, and show a Windows notification when a video or short finishes or fails.
2026-08-16 09:20:56 +02:00
parent e635b708a2
commit a590904e89
20 changed files with 1259 additions and 103 deletions
@@ -127,6 +127,154 @@ public class RenderPipelineTests
        RenderPipeline.Validate(settings);
    }

+    [TestMethod]
+    public void ValidatePreview_WithMissingOutputName_DoesNotThrow()
+    {
+        // Arrange
+        string directory = CreateTempDirectory();
+        string input = Path.Combine(directory, "clip.avi");
+        File.WriteAllText(input, "data");
+        RenderSettings settings = ValidSettings([input], "") with { OutputName = "" };
+
+        // Act & Assert (no exception)
+        RenderPipeline.ValidatePreview(settings);
+    }
+
+    [TestMethod]
+    public void ValidatePreview_WithNoInputFiles_ThrowsArgumentException()
+    {
+        // Arrange
+        RenderSettings settings = ValidSettings([], @"C:\out");
+
+        // Act & Assert
+        Assert.ThrowsExactly<ArgumentException>(() => RenderPipeline.ValidatePreview(settings));
+    }
+
+    [TestMethod]
+    public void BuildJoinVideoFilter_IncludesCropThenScaleAndPad()
+    {
+        // Arrange
+        RenderSettings settings = ValidSettings(["clip.avi"], @"C:\out");
+
+        // Act
+        string filter = RenderPipeline.BuildJoinVideoFilter(settings, "crop=iw-10-10:ih-4-4:10:4");
+
+        // Assert
+        StringAssert.StartsWith(filter, "crop=iw-10-10:ih-4-4:10:4,scale=2880:2160");
+        StringAssert.Contains(filter, "pad=3840:2160");
+    }
+
+    [TestMethod]
+    public void BuildSourceCropFilter_WithManualInsets_UsesEdgeCrop()
+    {
+        // Arrange
+        RenderSettings settings = ValidSettings(["clip.avi"], @"C:\out") with
+        {
+            CropLeft = 20,
+            CropRight = 10,
+            CropTop = 4,
+            CropBottom = 6,
+        };
+
+        // Act
+        string filter = RenderPipeline.BuildSourceCropFilter(settings, "crop=800:ih:40:0");
+
+        // Assert
+        Assert.AreEqual("crop=iw-20-10:ih-4-6:20:4", filter);
+    }
+
+    [TestMethod]
+    public void BuildSourceCropFilter_WithAutoDetection_UsesDetectedFilter()
+    {
+        // Arrange
+        RenderSettings settings = ValidSettings(["clip.avi"], @"C:\out") with
+        {
+            SourceCropMode = ShortSourceCropMode.Auto,
+        };
+
+        // Act
+        string filter = RenderPipeline.BuildSourceCropFilter(settings, "crop=800:ih:40:0");
+
+        // Assert
+        Assert.AreEqual("crop=800:ih:40:0", filter);
+    }
+
+    [TestMethod]
+    public void BuildSourceCropFilter_WithCenterMode_UsesFourByThreeCrop()
+    {
+        // Arrange
+        RenderSettings settings = ValidSettings(["clip.avi"], @"C:\out") with
+        {
+            SourceCropMode = ShortSourceCropMode.Center,
+        };
+
+        // Act
+        string filter = RenderPipeline.BuildSourceCropFilter(settings, "crop=800:ih:40:0");
+
+        // Assert
+        Assert.AreEqual(ShortsPipeline.DefaultSourceCropFilter, filter);
+    }
+
+    [TestMethod]
+    public void BuildSourceCropFilter_WithNoneMode_AppliesNoCrop()
+    {
+        // Arrange
+        RenderSettings settings = ValidSettings(["clip.avi"], @"C:\out") with
+        {
+            SourceCropMode = ShortSourceCropMode.None,
+        };
+
+        // Act
+        string filter = RenderPipeline.BuildSourceCropFilter(settings, "crop=800:ih:40:0");
+
+        // Assert
+        Assert.AreEqual("", filter);
+    }
+
+    [TestMethod]
+    public void BuildJoinVideoFilter_WithNoCrop_StartsAtScale()
+    {
+        // Arrange
+        RenderSettings settings = ValidSettings(["clip.avi"], @"C:\out");
+
+        // Act
+        string filter = RenderPipeline.BuildJoinVideoFilter(settings, "");
+
+        // Assert
+        StringAssert.StartsWith(filter, "scale=2880:2160");
+        Assert.IsFalse(filter.Contains("crop=", StringComparison.Ordinal));
+    }
+
+    [TestMethod]
+    public void PreviewSeekSeconds_WithDurationAfterTrim_StaysInsideRemainingClip()
+    {
+        // Act
+        double seek = RenderPipeline.PreviewSeekSeconds(4, 30);
+
+        // Assert
+        Assert.AreEqual(5.2, seek, 0.001);
+    }
+
+    [TestMethod]
+    public void PreviewSeekSeconds_WhenTrimIsPastDuration_ReturnsTrimStart()
+    {
+        // Act
+        double seek = RenderPipeline.PreviewSeekSeconds(40, 10);
+
+        // Assert
+        Assert.AreEqual(40, seek, 0.001);
+    }
+
+    [TestMethod]
+    public void FormatTimestamp_FormatsInvariantHoursMinutesSeconds()
+    {
+        // Act
+        string stamp = RenderPipeline.FormatTimestamp(4.414);
+
+        // Assert
+        Assert.AreEqual("00:00:04.414", stamp);
+    }
+
    [TestMethod]
    public void BuildProgressMessage_WithOnlyTime_ReturnsTimeRangeOnly()
    {