Merge pull request #408 from rosenbjerg/main

V.5.0.2

.github/workflows/ci.yml

@@ -45,7 +45,8 @@ jobs:
     - name: Test with dotnet
       run: dotnet test FFMpegCore.sln  --collect "XPlat Code Coverage" --logger GitHubActions
 
-    - name: Upload coverage reports to Codecov
+    - if: matrix.os == 'windows-latest'
+      name: Upload coverage reports to Codecov
       uses: codecov/codecov-action@v3
       with:
         directory: FFMpegCore.Test/TestResults

FFMpegCore.Examples/FFMpegCore.Examples.csproj

@@ -7,6 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <ProjectReference Include="..\FFMpegCore.Extensions.SkiaSharp\FFMpegCore.Extensions.SkiaSharp.csproj" />
     <ProjectReference Include="..\FFMpegCore.Extensions.System.Drawing.Common\FFMpegCore.Extensions.System.Drawing.Common.csproj"/>
     <ProjectReference Include="..\FFMpegCore\FFMpegCore.csproj"/>
   </ItemGroup>

FFMpegCore.Examples/Program.cs

@@ -1,8 +1,11 @@
 using System.Drawing;
 using FFMpegCore;
 using FFMpegCore.Enums;
+using FFMpegCore.Extensions.SkiaSharp;
 using FFMpegCore.Extensions.System.Drawing.Common;
 using FFMpegCore.Pipes;
+using SkiaSharp;
+using FFMpegImage = FFMpegCore.Extensions.System.Drawing.Common.FFMpegImage;
 
 var inputPath = "/path/to/input";
 var outputPath = "/path/to/output";
@@ -77,11 +80,14 @@ await FFMpegArguments
 var inputImagePath = "/path/to/input/image";
 {
     FFMpeg.PosterWithAudio(inputPath, inputAudioPath, outputPath);
-    // or 
+    // or using FFMpegCore.Extensions.System.Drawing.Common
 #pragma warning disable CA1416
     using var image = Image.FromFile(inputImagePath);
     image.AddAudio(inputAudioPath, outputPath);
 #pragma warning restore CA1416
+    // or using FFMpegCore.Extensions.SkiaSharp
+    using var skiaSharpImage = SKBitmap.Decode(inputImagePath);
+    skiaSharpImage.AddAudio(inputAudioPath, outputPath);
 }
 
 IVideoFrame GetNextFrame() => throw new NotImplementedException();

FFMpegCore.Extensions.SkiaSharp/BitmapExtensions.cs

@@ -0,0 +1,28 @@
+using SkiaSharp;
+
+namespace FFMpegCore.Extensions.SkiaSharp
+{
+    public static class BitmapExtensions
+    {
+        public static bool AddAudio(this SKBitmap poster, string audio, string output)
+        {
+            var destination = $"{Environment.TickCount}.png";
+            using (var fileStream = File.OpenWrite(destination))
+            {
+                poster.Encode(fileStream, SKEncodedImageFormat.Png, default); // PNG does not respect the quality parameter
+            }
+
+            try
+            {
+                return FFMpeg.PosterWithAudio(destination, audio, output);
+            }
+            finally
+            {
+                if (File.Exists(destination))
+                {
+                    File.Delete(destination);
+                }
+            }
+        }
+    }
+}

FFMpegCore.Extensions.SkiaSharp/BitmapVideoFrameWrapper.cs

@@ -0,0 +1,59 @@
+using FFMpegCore.Pipes;
+using SkiaSharp;
+
+namespace FFMpegCore.Extensions.SkiaSharp
+{
+    public class BitmapVideoFrameWrapper : IVideoFrame, IDisposable
+    {
+        public int Width => Source.Width;
+
+        public int Height => Source.Height;
+
+        public string Format { get; private set; }
+
+        public SKBitmap Source { get; private set; }
+
+        public BitmapVideoFrameWrapper(SKBitmap bitmap)
+        {
+            Source = bitmap ?? throw new ArgumentNullException(nameof(bitmap));
+            Format = ConvertStreamFormat(bitmap.ColorType);
+        }
+
+        public void Serialize(Stream stream)
+        {
+            var data = Source.Bytes;
+            stream.Write(data, 0, data.Length);
+        }
+
+        public async Task SerializeAsync(Stream stream, CancellationToken token)
+        {
+            var data = Source.Bytes;
+            await stream.WriteAsync(data, 0, data.Length, token).ConfigureAwait(false);
+        }
+
+        public void Dispose()
+        {
+            Source.Dispose();
+        }
+
+        private static string ConvertStreamFormat(SKColorType fmt)
+        {
+            // TODO: Add support for additional formats
+            switch (fmt)
+            {
+                case SKColorType.Gray8:
+                    return "gray8";
+                case SKColorType.Bgra8888:
+                    return "bgra";
+                case SKColorType.Rgb888x:
+                    return "rgb";
+                case SKColorType.Rgba8888:
+                    return "rgba";
+                case SKColorType.Rgb565:
+                    return "rgb565";
+                default:
+                    throw new NotSupportedException($"Not supported pixel format {fmt}");
+            }
+        }
+    }
+}

FFMpegCore.Extensions.SkiaSharp/FFMpegCore.Extensions.SkiaSharp.csproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <IsPackable>true</IsPackable>
+        <Description>Image extension for FFMpegCore using SkiaSharp</Description>
+        <PackageVersion>5.0.0</PackageVersion>
+        <PackageOutputPath>../nupkg</PackageOutputPath>
+        <PackageReleaseNotes>
+        </PackageReleaseNotes>
+        <PackageTags>ffmpeg ffprobe convert video audio mediafile resize analyze muxing skiasharp</PackageTags>
+        <Authors>Malte Rosenbjerg, Vlad Jerca, Max Bagryantsev, Dimitri Vranken</Authors>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <PackageReference Include="SkiaSharp" Version="2.88.3" />
+      <PackageReference Include="SkiaSharp.NativeAssets.Linux.NoDependencies" Version="2.88.3" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\FFMpegCore\FFMpegCore.csproj" />
+    </ItemGroup>
+
+</Project>

FFMpegCore.Extensions.SkiaSharp/FFMpegImage.cs

@@ -0,0 +1,57 @@
+using System.Drawing;
+using FFMpegCore.Pipes;
+using SkiaSharp;
+
+namespace FFMpegCore.Extensions.SkiaSharp
+{
+    public static class FFMpegImage
+    {
+        /// <summary>
+        ///     Saves a 'png' thumbnail to an in-memory bitmap
+        /// </summary>
+        /// <param name="input">Source video file.</param>
+        /// <param name="captureTime">Seek position where the thumbnail should be taken.</param>
+        /// <param name="size">Thumbnail size. If width or height equal 0, the other will be computed automatically.</param>
+        /// <param name="streamIndex">Selected video stream index.</param>
+        /// <param name="inputFileIndex">Input file index</param>
+        /// <returns>Bitmap with the requested snapshot.</returns>
+        public static SKBitmap Snapshot(string input, Size? size = null, TimeSpan? captureTime = null, int? streamIndex = null, int inputFileIndex = 0)
+        {
+            var source = FFProbe.Analyse(input);
+            var (arguments, outputOptions) = SnapshotArgumentBuilder.BuildSnapshotArguments(input, source, size, captureTime, streamIndex, inputFileIndex);
+            using var ms = new MemoryStream();
+
+            arguments
+                .OutputToPipe(new StreamPipeSink(ms), options => outputOptions(options
+                    .ForceFormat("rawvideo")))
+                .ProcessSynchronously();
+
+            ms.Position = 0;
+            using var bitmap = SKBitmap.Decode(ms);
+            return bitmap.Copy();
+        }
+        /// <summary>
+        ///     Saves a 'png' thumbnail to an in-memory bitmap
+        /// </summary>
+        /// <param name="input">Source video file.</param>
+        /// <param name="captureTime">Seek position where the thumbnail should be taken.</param>
+        /// <param name="size">Thumbnail size. If width or height equal 0, the other will be computed automatically.</param>
+        /// <param name="streamIndex">Selected video stream index.</param>
+        /// <param name="inputFileIndex">Input file index</param>
+        /// <returns>Bitmap with the requested snapshot.</returns>
+        public static async Task<SKBitmap> SnapshotAsync(string input, Size? size = null, TimeSpan? captureTime = null, int? streamIndex = null, int inputFileIndex = 0)
+        {
+            var source = await FFProbe.AnalyseAsync(input).ConfigureAwait(false);
+            var (arguments, outputOptions) = SnapshotArgumentBuilder.BuildSnapshotArguments(input, source, size, captureTime, streamIndex, inputFileIndex);
+            using var ms = new MemoryStream();
+
+            await arguments
+                .OutputToPipe(new StreamPipeSink(ms), options => outputOptions(options
+                    .ForceFormat("rawvideo")))
+                .ProcessAsynchronously();
+
+            ms.Position = 0;
+            return SKBitmap.Decode(ms);
+        }
+    }
+}

FFMpegCore.Extensions.System.Drawing.Common/FFMpegImage.cs

@@ -29,6 +29,7 @@ public static Bitmap Snapshot(string input, Size? size = null, TimeSpan? capture
             using var bitmap = new Bitmap(ms);
             return bitmap.Clone(new Rectangle(0, 0, bitmap.Width, bitmap.Height), bitmap.PixelFormat);
         }
+
         /// <summary>
         ///     Saves a 'png' thumbnail to an in-memory bitmap
         /// </summary>

FFMpegCore.Test/ArgumentBuilderTest.cs

@@ -258,6 +258,13 @@ public void Builder_BuildString_Seek()
             Assert.AreEqual("-ss 00:00:10.000 -i \"input.mp4\" -ss 00:00:10.000 \"output.mp4\"", str);
         }
 
+        [TestMethod]
+        public void Builder_BuildString_EndSeek()
+        {
+            var str = FFMpegArguments.FromFileInput("input.mp4", false, opt => opt.EndSeek(TimeSpan.FromSeconds(10))).OutputToFile("output.mp4", false, opt => opt.EndSeek(TimeSpan.FromSeconds(10))).Arguments;
+            Assert.AreEqual("-to 00:00:10.000 -i \"input.mp4\" -to 00:00:10.000 \"output.mp4\"", str);
+        }
+
         [TestMethod]
         public void Builder_BuildString_Shortest()
         {

FFMpegCore.Test/FFMpegCore.Test.csproj

@@ -12,17 +12,19 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="FluentAssertions" Version="6.9.0"/>
+    <PackageReference Include="FluentAssertions" Version="6.10.0" />
     <PackageReference Include="GitHubActionsTestLogger" Version="2.0.1">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.4.1"/>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.0.2" />
     <PackageReference Include="MSTest.TestFramework" Version="3.0.2" />
+    <PackageReference Include="SkiaSharp" Version="2.88.3" />
   </ItemGroup>
 
   <ItemGroup>
+    <ProjectReference Include="..\FFMpegCore.Extensions.SkiaSharp\FFMpegCore.Extensions.SkiaSharp.csproj" />
     <ProjectReference Include="..\FFMpegCore.Extensions.System.Drawing.Common\FFMpegCore.Extensions.System.Drawing.Common.csproj" />
     <ProjectReference Include="..\FFMpegCore\FFMpegCore.csproj" />
   </ItemGroup>

FFMpegCore.Test/Utilities/BitmapSources.cs

@@ -2,14 +2,14 @@
 using System.Drawing.Imaging;
 using System.Numerics;
 using System.Runtime.Versioning;
-using FFMpegCore.Extensions.System.Drawing.Common;
 using FFMpegCore.Pipes;
+using SkiaSharp;
 
 namespace FFMpegCore.Test.Utilities
 {
-    [SupportedOSPlatform("windows")]
     internal static class BitmapSource
     {
+        [SupportedOSPlatform("windows")]
         public static IEnumerable<IVideoFrame> CreateBitmaps(int count, PixelFormat fmt, int w, int h)
         {
             for (var i = 0; i < count; i++)
@@ -21,10 +21,44 @@ public static IEnumerable<IVideoFrame> CreateBitmaps(int count, PixelFormat fmt,
             }
         }
 
-        public static BitmapVideoFrameWrapper CreateVideoFrame(int index, PixelFormat fmt, int w, int h, float scaleNoise, float offset)
+        public static IEnumerable<IVideoFrame> CreateBitmaps(int count, SKColorType fmt, int w, int h)
+        {
+            for (var i = 0; i < count; i++)
+            {
+                using (var frame = CreateVideoFrame(i, fmt, w, h, 0.025f, 0.025f * w * 0.03f))
+                {
+                    yield return frame;
+                }
+            }
+        }
+
+        [SupportedOSPlatform("windows")]
+        public static Extensions.System.Drawing.Common.BitmapVideoFrameWrapper CreateVideoFrame(int index, PixelFormat fmt, int w, int h, float scaleNoise, float offset)
         {
             var bitmap = new Bitmap(w, h, fmt);
 
+            foreach (var (x, y, red, green, blue) in GenerateVideoFramePixels(index, w, h, scaleNoise, offset))
+            {
+                var color = Color.FromArgb(red, blue, green);
+                bitmap.SetPixel(x, y, color);
+            }
+
+            return new Extensions.System.Drawing.Common.BitmapVideoFrameWrapper(bitmap);
+        }
+
+        public static Extensions.SkiaSharp.BitmapVideoFrameWrapper CreateVideoFrame(int index, SKColorType fmt, int w, int h, float scaleNoise, float offset)
+        {
+            var bitmap = new SKBitmap(w, h, fmt, SKAlphaType.Opaque);
+
+            bitmap.Pixels = GenerateVideoFramePixels(index, w, h, scaleNoise, offset)
+                .Select(args => new SKColor(args.red, args.blue, args.green))
+                .ToArray();
+
+            return new Extensions.SkiaSharp.BitmapVideoFrameWrapper(bitmap);
+        }
+
+        private static IEnumerable<(int x, int y, byte red, byte green, byte blue)> GenerateVideoFramePixels(int index, int w, int h, float scaleNoise, float offset)
+        {
             offset = offset * index;
 
             for (var y = 0; y < h; y++)
@@ -36,15 +70,11 @@ public static BitmapVideoFrameWrapper CreateVideoFrame(int index, PixelFormat fm
                     var nx = x * scaleNoise + offset;
                     var ny = y * scaleNoise + offset;
 
-                    var value = (int)((Perlin.Noise(nx, ny) + 1.0f) / 2.0f * 255);
+                    var value = (byte)((Perlin.Noise(nx, ny) + 1.0f) / 2.0f * 255);
 
-                    var color = Color.FromArgb((int)(value * xf), (int)(value * yf), value);
+                    yield return ((x, y, (byte)(value * xf), (byte)(value * yf), value));
-
-                    bitmap.SetPixel(x, y, color);
                 }
             }
-
-            return new BitmapVideoFrameWrapper(bitmap);
         }
 
         //

FFMpegCore.Test/VideoTest.cs

@@ -4,7 +4,6 @@
 using FFMpegCore.Arguments;
 using FFMpegCore.Enums;
 using FFMpegCore.Exceptions;
-using FFMpegCore.Extensions.System.Drawing.Common;
 using FFMpegCore.Pipes;
 using FFMpegCore.Test.Resources;
 using FFMpegCore.Test.Utilities;
@@ -15,7 +14,9 @@ namespace FFMpegCore.Test
     [TestClass]
     public class VideoTest
     {
-        [TestMethod, Timeout(10000)]
+        private const int BaseTimeoutMilliseconds = 15_000;
+
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_ToOGV()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Ogv.Extension}");
@@ -27,7 +28,7 @@ public void Video_ToOGV()
             Assert.IsTrue(success);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_ToMP4()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
@@ -39,7 +40,7 @@ public void Video_ToMP4()
             Assert.IsTrue(success);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_ToMP4_YUV444p()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
@@ -55,7 +56,7 @@ public void Video_ToMP4_YUV444p()
             Assert.IsTrue(analysis.VideoStreams.First().PixelFormat == "yuv444p");
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_ToMP4_Args()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
@@ -68,7 +69,7 @@ public void Video_ToMP4_Args()
             Assert.IsTrue(success);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_ToH265_MKV_Args()
         {
             using var outputFile = new TemporaryFile($"out.mkv");
@@ -82,10 +83,17 @@ public void Video_ToH265_MKV_Args()
         }
 
         [SupportedOSPlatform("windows")]
-        [WindowsOnlyDataTestMethod, Timeout(10000)]
+        [WindowsOnlyDataTestMethod, Timeout(BaseTimeoutMilliseconds)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format24bppRgb)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format32bppArgb)]
-        public void Video_ToMP4_Args_Pipe(System.Drawing.Imaging.PixelFormat pixelFormat)
+        public void Video_ToMP4_Args_Pipe_WindowsOnly(System.Drawing.Imaging.PixelFormat pixelFormat) => Video_ToMP4_Args_Pipe_Internal(pixelFormat);
+
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
+        [DataRow(SkiaSharp.SKColorType.Rgb565)]
+        [DataRow(SkiaSharp.SKColorType.Bgra8888)]
+        public void Video_ToMP4_Args_Pipe(SkiaSharp.SKColorType pixelFormat) => Video_ToMP4_Args_Pipe_Internal(pixelFormat);
+
+        private static void Video_ToMP4_Args_Pipe_Internal(dynamic pixelFormat)
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
 
@@ -99,15 +107,20 @@ public void Video_ToMP4_Args_Pipe(System.Drawing.Imaging.PixelFormat pixelFormat
         }
 
         [SupportedOSPlatform("windows")]
-        [WindowsOnlyTestMethod, Timeout(10000)]
+        [WindowsOnlyTestMethod, Timeout(BaseTimeoutMilliseconds)]
-        public void Video_ToMP4_Args_Pipe_DifferentImageSizes()
+        public void Video_ToMP4_Args_Pipe_DifferentImageSizes_WindowsOnly() => Video_ToMP4_Args_Pipe_DifferentImageSizes_Internal(System.Drawing.Imaging.PixelFormat.Format24bppRgb);
+
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
+        public void Video_ToMP4_Args_Pipe_DifferentImageSizes() => Video_ToMP4_Args_Pipe_DifferentImageSizes_Internal(SkiaSharp.SKColorType.Rgb565);
+
+        private static void Video_ToMP4_Args_Pipe_DifferentImageSizes_Internal(dynamic pixelFormat)
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
 
             var frames = new List<IVideoFrame>
             {
-                BitmapSource.CreateVideoFrame(0, System.Drawing.Imaging.PixelFormat.Format24bppRgb, 255, 255, 1, 0),
+                BitmapSource.CreateVideoFrame(0, pixelFormat, 255, 255, 1, 0),
-                BitmapSource.CreateVideoFrame(0, System.Drawing.Imaging.PixelFormat.Format24bppRgb, 256, 256, 1, 0)
+                BitmapSource.CreateVideoFrame(0, pixelFormat, 256, 256, 1, 0)
             };
 
             var videoFramesSource = new RawVideoPipeSource(frames);
@@ -119,15 +132,20 @@ public void Video_ToMP4_Args_Pipe_DifferentImageSizes()
         }
 
         [SupportedOSPlatform("windows")]
-        [WindowsOnlyTestMethod, Timeout(10000)]
+        [WindowsOnlyTestMethod, Timeout(BaseTimeoutMilliseconds)]
-        public async Task Video_ToMP4_Args_Pipe_DifferentImageSizes_Async()
+        public async Task Video_ToMP4_Args_Pipe_DifferentImageSizes_WindowsOnly_Async() => await Video_ToMP4_Args_Pipe_DifferentImageSizes_Internal_Async(System.Drawing.Imaging.PixelFormat.Format24bppRgb);
+
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
+        public async Task Video_ToMP4_Args_Pipe_DifferentImageSizes_Async() => await Video_ToMP4_Args_Pipe_DifferentImageSizes_Internal_Async(SkiaSharp.SKColorType.Rgb565);
+
+        private static async Task Video_ToMP4_Args_Pipe_DifferentImageSizes_Internal_Async(dynamic pixelFormat)
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
 
             var frames = new List<IVideoFrame>
             {
-                BitmapSource.CreateVideoFrame(0, System.Drawing.Imaging.PixelFormat.Format24bppRgb, 255, 255, 1, 0),
+                BitmapSource.CreateVideoFrame(0, pixelFormat, 255, 255, 1, 0),
-                BitmapSource.CreateVideoFrame(0, System.Drawing.Imaging.PixelFormat.Format24bppRgb, 256, 256, 1, 0)
+                BitmapSource.CreateVideoFrame(0, pixelFormat, 256, 256, 1, 0)
             };
 
             var videoFramesSource = new RawVideoPipeSource(frames);
@@ -139,15 +157,21 @@ public async Task Video_ToMP4_Args_Pipe_DifferentImageSizes_Async()
         }
 
         [SupportedOSPlatform("windows")]
-        [WindowsOnlyTestMethod, Timeout(10000)]
+        [WindowsOnlyTestMethod, Timeout(BaseTimeoutMilliseconds)]
-        public void Video_ToMP4_Args_Pipe_DifferentPixelFormats()
+        public void Video_ToMP4_Args_Pipe_DifferentPixelFormats_WindowsOnly() =>
+            Video_ToMP4_Args_Pipe_DifferentPixelFormats_Internal(System.Drawing.Imaging.PixelFormat.Format24bppRgb, System.Drawing.Imaging.PixelFormat.Format32bppRgb);
+
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
+        public void Video_ToMP4_Args_Pipe_DifferentPixelFormats() => Video_ToMP4_Args_Pipe_DifferentPixelFormats_Internal(SkiaSharp.SKColorType.Rgb565, SkiaSharp.SKColorType.Bgra8888);
+
+        private static void Video_ToMP4_Args_Pipe_DifferentPixelFormats_Internal(dynamic pixelFormatFrame1, dynamic pixelFormatFrame2)
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
 
             var frames = new List<IVideoFrame>
             {
-                BitmapSource.CreateVideoFrame(0, System.Drawing.Imaging.PixelFormat.Format24bppRgb, 255, 255, 1, 0),
+                BitmapSource.CreateVideoFrame(0, pixelFormatFrame1, 255, 255, 1, 0),
-                BitmapSource.CreateVideoFrame(0, System.Drawing.Imaging.PixelFormat.Format32bppRgb, 255, 255, 1, 0)
+                BitmapSource.CreateVideoFrame(0, pixelFormatFrame2, 255, 255, 1, 0)
             };
 
             var videoFramesSource = new RawVideoPipeSource(frames);
@@ -159,15 +183,21 @@ public void Video_ToMP4_Args_Pipe_DifferentPixelFormats()
         }
 
         [SupportedOSPlatform("windows")]
-        [WindowsOnlyTestMethod, Timeout(10000)]
+        [WindowsOnlyTestMethod, Timeout(BaseTimeoutMilliseconds)]
-        public async Task Video_ToMP4_Args_Pipe_DifferentPixelFormats_Async()
+        public async Task Video_ToMP4_Args_Pipe_DifferentPixelFormats_WindowsOnly_Async() =>
+            await Video_ToMP4_Args_Pipe_DifferentPixelFormats_Internal_Async(System.Drawing.Imaging.PixelFormat.Format24bppRgb, System.Drawing.Imaging.PixelFormat.Format32bppRgb);
+
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
+        public async Task Video_ToMP4_Args_Pipe_DifferentPixelFormats_Async() => await Video_ToMP4_Args_Pipe_DifferentPixelFormats_Internal_Async(SkiaSharp.SKColorType.Rgb565, SkiaSharp.SKColorType.Bgra8888);
+
+        private static async Task Video_ToMP4_Args_Pipe_DifferentPixelFormats_Internal_Async(dynamic pixelFormatFrame1, dynamic pixelFormatFrame2)
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
 
             var frames = new List<IVideoFrame>
             {
-                BitmapSource.CreateVideoFrame(0, System.Drawing.Imaging.PixelFormat.Format24bppRgb, 255, 255, 1, 0),
+                BitmapSource.CreateVideoFrame(0, pixelFormatFrame1, 255, 255, 1, 0),
-                BitmapSource.CreateVideoFrame(0, System.Drawing.Imaging.PixelFormat.Format32bppRgb, 255, 255, 1, 0)
+                BitmapSource.CreateVideoFrame(0, pixelFormatFrame2, 255, 255, 1, 0)
             };
 
             var videoFramesSource = new RawVideoPipeSource(frames);
@@ -178,7 +208,7 @@ public async Task Video_ToMP4_Args_Pipe_DifferentPixelFormats_Async()
               .ProcessAsynchronously());
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_ToMP4_Args_StreamPipe()
         {
             using var input = File.OpenRead(TestResources.WebmVideo);
@@ -192,7 +222,7 @@ public void Video_ToMP4_Args_StreamPipe()
             Assert.IsTrue(success);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public async Task Video_ToMP4_Args_StreamOutputPipe_Async_Failure()
         {
             await Assert.ThrowsExceptionAsync<FFMpegException>(async () =>
@@ -206,7 +236,7 @@ await FFMpegArguments
             });
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_StreamFile_OutputToMemoryStream()
         {
             var output = new MemoryStream();
@@ -223,7 +253,7 @@ public void Video_StreamFile_OutputToMemoryStream()
             Console.WriteLine(result.Duration);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_ToMP4_Args_StreamOutputPipe_Failure()
         {
             Assert.ThrowsException<FFMpegException>(() =>
@@ -237,7 +267,7 @@ public void Video_ToMP4_Args_StreamOutputPipe_Failure()
             });
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public async Task Video_ToMP4_Args_StreamOutputPipe_Async()
         {
             await using var ms = new MemoryStream();
@@ -250,7 +280,7 @@ await FFMpegArguments
                 .ProcessAsynchronously();
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public async Task TestDuplicateRun()
         {
             FFMpegArguments
@@ -266,7 +296,7 @@ await FFMpegArguments
             File.Delete("temporary.mp4");
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void TranscodeToMemoryStream_Success()
         {
             using var output = new MemoryStream();
@@ -284,7 +314,7 @@ public void TranscodeToMemoryStream_Success()
             Assert.AreEqual(inputAnalysis.Duration.TotalSeconds, outputAnalysis.Duration.TotalSeconds, 0.3);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_ToTS()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.MpegTs.Extension}");
@@ -296,7 +326,7 @@ public void Video_ToTS()
             Assert.IsTrue(success);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_ToTS_Args()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.MpegTs.Extension}");
@@ -312,10 +342,17 @@ public void Video_ToTS_Args()
         }
 
         [SupportedOSPlatform("windows")]
-        [WindowsOnlyDataTestMethod, Timeout(10000)]
+        [WindowsOnlyDataTestMethod, Timeout(BaseTimeoutMilliseconds)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format24bppRgb)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format32bppArgb)]
-        public async Task Video_ToTS_Args_Pipe(System.Drawing.Imaging.PixelFormat pixelFormat)
+        public async Task Video_ToTS_Args_Pipe_WindowsOnly(System.Drawing.Imaging.PixelFormat pixelFormat) => await Video_ToTS_Args_Pipe_Internal(pixelFormat);
+
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
+        [DataRow(SkiaSharp.SKColorType.Rgb565)]
+        [DataRow(SkiaSharp.SKColorType.Bgra8888)]
+        public async Task Video_ToTS_Args_Pipe(SkiaSharp.SKColorType pixelFormat) => await Video_ToTS_Args_Pipe_Internal(pixelFormat);
+
+        private static async Task Video_ToTS_Args_Pipe_Internal(dynamic pixelFormat)
         {
             using var output = new TemporaryFile($"out{VideoType.Ts.Extension}");
             var input = new RawVideoPipeSource(BitmapSource.CreateBitmaps(128, pixelFormat, 256, 256));
@@ -331,7 +368,7 @@ public async Task Video_ToTS_Args_Pipe(System.Drawing.Imaging.PixelFormat pixelF
             Assert.AreEqual(VideoType.Ts.Name, analysis.Format.FormatName);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public async Task Video_ToOGV_Resize()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Ogv.Extension}");
@@ -345,11 +382,10 @@ public async Task Video_ToOGV_Resize()
         }
 
         [SupportedOSPlatform("windows")]
-        [WindowsOnlyDataTestMethod, Timeout(10000)]
+        [WindowsOnlyDataTestMethod, Timeout(BaseTimeoutMilliseconds)]
-        [DataRow(System.Drawing.Imaging.PixelFormat.Format24bppRgb)]
+        [DataRow(SkiaSharp.SKColorType.Rgb565)]
-        [DataRow(System.Drawing.Imaging.PixelFormat.Format32bppArgb)]
+        [DataRow(SkiaSharp.SKColorType.Bgra8888)]
-        [DataRow(System.Drawing.Imaging.PixelFormat.Format48bppRgb)]
+        public void RawVideoPipeSource_Ogv_Scale(SkiaSharp.SKColorType pixelFormat)
-        public void RawVideoPipeSource_Ogv_Scale(System.Drawing.Imaging.PixelFormat pixelFormat)
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Ogv.Extension}");
             var videoFramesSource = new RawVideoPipeSource(BitmapSource.CreateBitmaps(128, pixelFormat, 256, 256));
@@ -366,7 +402,7 @@ public void RawVideoPipeSource_Ogv_Scale(System.Drawing.Imaging.PixelFormat pixe
             Assert.AreEqual((int)VideoSize.Ed, analysis.PrimaryVideoStream!.Width);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Scale_Mp4_Multithreaded()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
@@ -381,11 +417,18 @@ public void Scale_Mp4_Multithreaded()
         }
 
         [SupportedOSPlatform("windows")]
-        [WindowsOnlyDataTestMethod, Timeout(10000)]
+        [WindowsOnlyDataTestMethod, Timeout(BaseTimeoutMilliseconds)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format24bppRgb)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format32bppArgb)]
         // [DataRow(PixelFormat.Format48bppRgb)]
-        public void Video_ToMP4_Resize_Args_Pipe(System.Drawing.Imaging.PixelFormat pixelFormat)
+        public void Video_ToMP4_Resize_Args_Pipe(System.Drawing.Imaging.PixelFormat pixelFormat) => Video_ToMP4_Resize_Args_Pipe_Internal(pixelFormat);
+
+        [DataTestMethod, Timeout(BaseTimeoutMilliseconds)]
+        [DataRow(SkiaSharp.SKColorType.Rgb565)]
+        [DataRow(SkiaSharp.SKColorType.Bgra8888)]
+        public void Video_ToMP4_Resize_Args_Pipe(SkiaSharp.SKColorType pixelFormat) => Video_ToMP4_Resize_Args_Pipe_Internal(pixelFormat);
+
+        private static void Video_ToMP4_Resize_Args_Pipe_Internal(dynamic pixelFormat)
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
             var videoFramesSource = new RawVideoPipeSource(BitmapSource.CreateBitmaps(128, pixelFormat, 256, 256));
@@ -399,10 +442,10 @@ public void Video_ToMP4_Resize_Args_Pipe(System.Drawing.Imaging.PixelFormat pixe
         }
 
         [SupportedOSPlatform("windows")]
-        [WindowsOnlyTestMethod, Timeout(10000)]
+        [WindowsOnlyTestMethod, Timeout(BaseTimeoutMilliseconds)]
-        public void Video_Snapshot_InMemory()
+        public void Video_Snapshot_InMemory_SystemDrawingCommon()
         {
-            using var bitmap = FFMpegImage.Snapshot(TestResources.Mp4Video);
+            using var bitmap = Extensions.System.Drawing.Common.FFMpegImage.Snapshot(TestResources.Mp4Video);
 
             var input = FFProbe.Analyse(TestResources.Mp4Video);
             Assert.AreEqual(input.PrimaryVideoStream!.Width, bitmap.Width);
@@ -410,7 +453,19 @@ public void Video_Snapshot_InMemory()
             Assert.AreEqual(bitmap.RawFormat, ImageFormat.Png);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
+        public void Video_Snapshot_InMemory_SkiaSharp()
+        {
+            using var bitmap = Extensions.SkiaSharp.FFMpegImage.Snapshot(TestResources.Mp4Video);
+
+            var input = FFProbe.Analyse(TestResources.Mp4Video);
+            Assert.AreEqual(input.PrimaryVideoStream!.Width, bitmap.Width);
+            Assert.AreEqual(input.PrimaryVideoStream.Height, bitmap.Height);
+            // Note: The resulting ColorType is dependent on the execution environment and therefore not assessed,
+            // e.g. Bgra8888 on Windows and Rgba8888 on macOS.
+        }
+
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_Snapshot_PersistSnapshot()
         {
             using var outputPath = new TemporaryFile("out.png");
@@ -424,7 +479,7 @@ public void Video_Snapshot_PersistSnapshot()
             Assert.AreEqual("png", analysis.PrimaryVideoStream!.CodecName);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_Join()
         {
             using var inputCopy = new TemporaryFile("copy-input.mp4");
@@ -446,7 +501,7 @@ public void Video_Join()
             Assert.AreEqual(input.PrimaryVideoStream.Width, result.PrimaryVideoStream.Width);
         }
 
-        [TestMethod, Timeout(20000)]
+        [TestMethod, Timeout(2 * BaseTimeoutMilliseconds)]
         public void Video_Join_Image_Sequence()
         {
             var imageSet = new List<string>();
@@ -471,7 +526,7 @@ public void Video_Join_Image_Sequence()
             Assert.AreEqual(imageAnalysis.PrimaryVideoStream!.Height, result.PrimaryVideoStream.Height);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_With_Only_Audio_Should_Extract_Metadata()
         {
             var video = FFProbe.Analyse(TestResources.Mp4WithoutVideo);
@@ -480,7 +535,7 @@ public void Video_With_Only_Audio_Should_Extract_Metadata()
             Assert.AreEqual(10, video.Duration.TotalSeconds, 0.5);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_Duration()
         {
             var video = FFProbe.Analyse(TestResources.Mp4Video);
@@ -500,7 +555,7 @@ public void Video_Duration()
             Assert.AreEqual(video.Duration.Seconds - 2, outputVideo.Duration.Seconds);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_UpdatesProgress()
         {
             using var outputFile = new TemporaryFile("out.mp4");
@@ -541,7 +596,7 @@ void OnTimeProgess(TimeSpan time)
             Assert.AreNotEqual(analysis.Duration, timeDone);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_OutputsData()
         {
             using var outputFile = new TemporaryFile("out.mp4");
@@ -563,12 +618,17 @@ public void Video_OutputsData()
         }
 
         [SupportedOSPlatform("windows")]
-        [WindowsOnlyTestMethod, Timeout(10000)]
+        [WindowsOnlyTestMethod, Timeout(BaseTimeoutMilliseconds)]
-        public void Video_TranscodeInMemory()
+        public void Video_TranscodeInMemory_WindowsOnly() => Video_TranscodeInMemory_Internal(System.Drawing.Imaging.PixelFormat.Format24bppRgb);
+
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
+        public void Video_TranscodeInMemory() => Video_TranscodeInMemory_Internal(SkiaSharp.SKColorType.Rgb565);
+
+        private static void Video_TranscodeInMemory_Internal(dynamic pixelFormat)
         {
             using var resStream = new MemoryStream();
             var reader = new StreamPipeSink(resStream);
-            var writer = new RawVideoPipeSource(BitmapSource.CreateBitmaps(128, System.Drawing.Imaging.PixelFormat.Format24bppRgb, 128, 128));
+            var writer = new RawVideoPipeSource(BitmapSource.CreateBitmaps(128, pixelFormat, 128, 128));
 
             FFMpegArguments
                 .FromPipeInput(writer)
@@ -583,7 +643,7 @@ public void Video_TranscodeInMemory()
             Assert.AreEqual(vi.PrimaryVideoStream.Height, 128);
         }
 
-        [TestMethod, Timeout(20000)]
+        [TestMethod, Timeout(2 * BaseTimeoutMilliseconds)]
         public void Video_TranscodeToMemory()
         {
             using var memoryStream = new MemoryStream();
@@ -601,7 +661,7 @@ public void Video_TranscodeToMemory()
             Assert.AreEqual(vi.PrimaryVideoStream.Height, 360);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public async Task Video_Cancel_Async()
         {
             using var outputFile = new TemporaryFile("out.mp4");
@@ -625,7 +685,7 @@ public async Task Video_Cancel_Async()
             Assert.IsFalse(result);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_Cancel()
         {
             using var outputFile = new TemporaryFile("out.mp4");
@@ -646,7 +706,7 @@ public void Video_Cancel()
             Assert.IsFalse(result);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public async Task Video_Cancel_Async_With_Timeout()
         {
             using var outputFile = new TemporaryFile("out.mp4");
@@ -676,7 +736,7 @@ public async Task Video_Cancel_Async_With_Timeout()
             Assert.AreEqual("aac", outputInfo.PrimaryAudioStream!.CodecName);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public async Task Video_Cancel_CancellationToken_Async()
         {
             using var outputFile = new TemporaryFile("out.mp4");
@@ -701,7 +761,7 @@ public async Task Video_Cancel_CancellationToken_Async()
             Assert.IsFalse(result);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public async Task Video_Cancel_CancellationToken_Async_Throws()
         {
             using var outputFile = new TemporaryFile("out.mp4");
@@ -724,7 +784,7 @@ public async Task Video_Cancel_CancellationToken_Async_Throws()
             await Assert.ThrowsExceptionAsync<OperationCanceledException>(() => task);
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public void Video_Cancel_CancellationToken_Throws()
         {
             using var outputFile = new TemporaryFile("out.mp4");
@@ -746,7 +806,7 @@ public void Video_Cancel_CancellationToken_Throws()
             Assert.ThrowsException<OperationCanceledException>(() => task.ProcessSynchronously());
         }
 
-        [TestMethod, Timeout(10000)]
+        [TestMethod, Timeout(BaseTimeoutMilliseconds)]
         public async Task Video_Cancel_CancellationToken_Async_With_Timeout()
         {
             using var outputFile = new TemporaryFile("out.mp4");

FFMpegCore.sln

@@ -9,7 +9,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FFMpegCore.Test", "FFMpegCo
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FFMpegCore.Examples", "FFMpegCore.Examples\FFMpegCore.Examples.csproj", "{3125CF91-FFBD-4E4E-8930-247116AFE772}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FFMpegCore.Extensions.System.Drawing.Common", "FFMpegCore.Extensions.System.Drawing.Common\FFMpegCore.Extensions.System.Drawing.Common.csproj", "{9C1A4930-9369-4A18-AD98-929A2A510D80}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FFMpegCore.Extensions.System.Drawing.Common", "FFMpegCore.Extensions.System.Drawing.Common\FFMpegCore.Extensions.System.Drawing.Common.csproj", "{9C1A4930-9369-4A18-AD98-929A2A510D80}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FFMpegCore.Extensions.SkiaSharp", "FFMpegCore.Extensions.SkiaSharp\FFMpegCore.Extensions.SkiaSharp.csproj", "{5A76F9B7-3681-4551-A9B6-8D3AC5DA1090}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -33,6 +35,10 @@ Global
 		{9C1A4930-9369-4A18-AD98-929A2A510D80}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{9C1A4930-9369-4A18-AD98-929A2A510D80}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{9C1A4930-9369-4A18-AD98-929A2A510D80}.Release|Any CPU.Build.0 = Release|Any CPU
+		{5A76F9B7-3681-4551-A9B6-8D3AC5DA1090}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{5A76F9B7-3681-4551-A9B6-8D3AC5DA1090}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{5A76F9B7-3681-4551-A9B6-8D3AC5DA1090}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{5A76F9B7-3681-4551-A9B6-8D3AC5DA1090}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

FFMpegCore/Extend/TimeSpanExtensions.cs

@@ -0,0 +1,15 @@
+namespace FFMpegCore.Extend;
+
+public static class TimeSpanExtensions
+{
+    public static string ToLongString(this TimeSpan timeSpan)
+    {
+        var hours = timeSpan.Hours;
+        if (timeSpan.Days > 0)
+        {
+            hours += timeSpan.Days * 24;
+        }
+
+        return $"{hours:00}:{timeSpan.Minutes:00}:{timeSpan.Seconds:00}.{timeSpan.Milliseconds:000}";
+    }
+}

FFMpegCore/FFMpeg/Arguments/EndSeekArgument.cs

@@ -0,0 +1,19 @@
+using FFMpegCore.Extend;
+
+namespace FFMpegCore.Arguments
+{
+    /// <summary>
+    /// Represents seek parameter
+    /// </summary>
+    public class EndSeekArgument : IArgument
+    {
+        public readonly TimeSpan? SeekTo;
+
+        public EndSeekArgument(TimeSpan? seekTo)
+        {
+            SeekTo = seekTo;
+        }
+
+        public string Text => SeekTo.HasValue ? $"-to {SeekTo.Value.ToLongString()}" : string.Empty;
+    }
+}

FFMpegCore/FFMpeg/Arguments/SeekArgument.cs

@@ -1,4 +1,6 @@
-namespace FFMpegCore.Arguments
+using FFMpegCore.Extend;
+
+namespace FFMpegCore.Arguments
 {
     /// <summary>
     /// Represents seek parameter
@@ -12,25 +14,6 @@ public SeekArgument(TimeSpan? seekTo)
             SeekTo = seekTo;
         }
 
-        public string Text
+        public string Text => SeekTo.HasValue ? $"-ss {SeekTo.Value.ToLongString()}" : string.Empty;
-        {
-            get
-            {
-                if (SeekTo.HasValue)
-                {
-                    var hours = SeekTo.Value.Hours;
-                    if (SeekTo.Value.Days > 0)
-                    {
-                        hours += SeekTo.Value.Days * 24;
-                    }
-
-                    return $"-ss {hours.ToString("00")}:{SeekTo.Value.Minutes.ToString("00")}:{SeekTo.Value.Seconds.ToString("00")}.{SeekTo.Value.Milliseconds.ToString("000")}";
-                }
-                else
-                {
-                    return string.Empty;
-                }
-            }
-        }
     }
 }

FFMpegCore/FFMpeg/FFMpeg.cs

@@ -247,6 +247,46 @@ public static bool Join(string output, params string[] videos)
             }
         }
 
+        private static FFMpegArgumentProcessor BaseSubVideo(string input, string output, TimeSpan startTime, TimeSpan endTime)
+        {
+            if (Path.GetExtension(input) != Path.GetExtension(output))
+            {
+                output = Path.Combine(Path.GetDirectoryName(output), Path.GetFileNameWithoutExtension(output), Path.GetExtension(input));
+            }
+
+            return FFMpegArguments
+                .FromFileInput(input, true, options => options.Seek(startTime).EndSeek(endTime))
+                .OutputToFile(output, true, options => options.CopyChannel());
+        }
+
+        /// <summary>
+        ///     Creates a new video starting and ending at the specified times
+        /// </summary>
+        /// <param name="input">Input video file.</param>
+        /// <param name="output">Output video file.</param>
+        /// <param name="startTime">The start time of when the sub video needs to start</param>
+        /// <param name="endTime">The end time of where the sub video needs to  end</param>
+        /// <returns>Output video information.</returns>
+        public static bool SubVideo(string input, string output, TimeSpan startTime, TimeSpan endTime)
+        {
+            return BaseSubVideo(input, output, startTime, endTime)
+                .ProcessSynchronously();
+        }
+
+        /// <summary>
+        ///     Creates a new video starting and ending at the specified times
+        /// </summary>
+        /// <param name="input">Input video file.</param>
+        /// <param name="output">Output video file.</param>
+        /// <param name="startTime">The start time of when the sub video needs to start</param>
+        /// <param name="endTime">The end time of where the sub video needs to  end</param>
+        /// <returns>Output video information.</returns>
+        public static async Task<bool> SubVideoAsync(string input, string output, TimeSpan startTime, TimeSpan endTime)
+        {
+            return await BaseSubVideo(input, output, startTime, endTime)
+                .ProcessAsynchronously();
+        }
+
         /// <summary>
         ///     Records M3U8 streams to the specified output.
         /// </summary>

FFMpegCore/FFMpeg/FFMpegArgumentOptions.cs

@@ -54,6 +54,7 @@ public FFMpegArgumentOptions WithAudioFilters(Action<AudioFilterOptions> audioFi
         public FFMpegArgumentOptions WithCustomArgument(string argument) => WithArgument(new CustomArgument(argument));
 
         public FFMpegArgumentOptions Seek(TimeSpan? seekTo) => WithArgument(new SeekArgument(seekTo));
+        public FFMpegArgumentOptions EndSeek(TimeSpan? seekTo) => WithArgument(new EndSeekArgument(seekTo));
         public FFMpegArgumentOptions Loop(int times) => WithArgument(new LoopArgument(times));
         public FFMpegArgumentOptions OverwriteExisting() => WithArgument(new OverwriteArgument());
         public FFMpegArgumentOptions SelectStream(int streamIndex, int inputFileIndex = 0,

FFMpegCore/FFMpeg/Pipes/RawVideoPipeSource.cs

@@ -15,13 +15,11 @@ public class RawVideoPipeSource : IPipeSource
         private bool _formatInitialized;
         private readonly IEnumerator<IVideoFrame> _framesEnumerator;
 
-        public RawVideoPipeSource(IEnumerator<IVideoFrame> framesEnumerator)
+        public RawVideoPipeSource(IEnumerable<IVideoFrame> framesEnumerator)
         {
-            _framesEnumerator = framesEnumerator;
+            _framesEnumerator = framesEnumerator.GetEnumerator();
         }
 
-        public RawVideoPipeSource(IEnumerable<IVideoFrame> framesEnumerator) : this(framesEnumerator.GetEnumerator()) { }
-
         public string GetStreamArguments()
         {
             if (!_formatInitialized)

FFMpegCore/FFMpegCore.csproj

@@ -3,7 +3,7 @@
   <PropertyGroup>
     <IsPackable>true</IsPackable>
     <Description>A .NET Standard FFMpeg/FFProbe wrapper for easily integrating media analysis and conversion into your .NET applications</Description>
-    <PackageVersion>5.0.1</PackageVersion>
+    <PackageVersion>5.0.2</PackageVersion>
     <PackageOutputPath>../nupkg</PackageOutputPath>
     <PackageReleaseNotes>
     </PackageReleaseNotes>
@@ -18,7 +18,7 @@
 
   <ItemGroup>
     <PackageReference Include="Instances" Version="3.0.0" />
-    <PackageReference Include="System.Text.Json" Version="7.0.1"/>
+    <PackageReference Include="System.Text.Json" Version="7.0.2" />
   </ItemGroup>
 
 </Project>

FFMpegCore/FFProbe/MediaAnalysis.cs

@@ -50,7 +50,7 @@ private MediaFormat ParseFormat(Format analysisFormat)
         {
             var bitDepth = int.TryParse(stream.BitsPerRawSample, out var bprs) ? bprs :
                 stream.BitsPerSample;
-            return bitDepth == 0 ? null : (int?)bitDepth;
+            return bitDepth == 0 ? null : bitDepth;
         }
 
         private VideoStream ParseVideoStream(FFProbeStream stream)
@@ -126,7 +126,7 @@ public static class MediaAnalysisUtils
     {
         private static readonly Regex DurationRegex = new(@"^(\d+):(\d{1,2}):(\d{1,2})\.(\d{1,3})", RegexOptions.Compiled);
 
-        internal static Dictionary<string, string>? ToCaseInsensitive(this Dictionary<string, string>? dictionary)
+        internal static Dictionary<string, string> ToCaseInsensitive(this Dictionary<string, string>? dictionary)
         {
             return dictionary?.ToDictionary(tag => tag.Key, tag => tag.Value, StringComparer.OrdinalIgnoreCase) ?? new Dictionary<string, string>();
         }
@@ -195,11 +195,6 @@ public static TimeSpan ParseDuration(string duration)
             }
         }
 
-        public static TimeSpan ParseDuration(FFProbeStream ffProbeStream)
-        {
-            return ParseDuration(ffProbeStream.Duration);
-        }
-
         public static int ParseRotation(FFProbeStream fFProbeStream)
         {
             var displayMatrixSideData = fFProbeStream.SideData?.Find(item => item.TryGetValue("side_data_type", out var rawSideDataType) && rawSideDataType.ToString() == "Display Matrix");

FFMpegCore/Helpers/FFProbeHelper.cs

@@ -3,27 +3,10 @@
 
 namespace FFMpegCore.Helpers
 {
-    public class FFProbeHelper
+    public static class FFProbeHelper
     {
         private static bool _ffprobeVerified;
 
-        public static int Gcd(int first, int second)
-        {
-            while (first != 0 && second != 0)
-            {
-                if (first > second)
-                {
-                    first -= second;
-                }
-                else
-                {
-                    second -= first;
-                }
-            }
-
-            return first == 0 ? second : first;
-        }
-
         public static void RootExceptionCheck()
         {
             if (GlobalFFOptions.Current.BinaryFolder == null)

README.md

@@ -72,6 +72,15 @@ FFMpeg.Join(@"..\joined_video.mp4",
 );
 ```
 
+### Create a sub video
+``` csharp
+FFMpeg.SubVideo(inputPath, 
+    outputPath,
+    TimeSpan.FromSeconds(0)
+    TimeSpan.FromSeconds(30)
+);
+```
+
 ### Join images into a video:
 ```csharp
 FFMpeg.JoinImageSequence(@"..\joined_video.mp4", frameRate: 1,

testenvironments.json

@@ -0,0 +1,10 @@
+{
+    "version": "1",
+    "environments": [
+        {
+            "name": "Ubuntu",
+            "type": "wsl",
+            "wslDistribution": "Ubuntu"
+        }
+    ]
+}