Merge pull request #137 from rosenbjerg/master

Fix dispose error with Snapshot in memory + tests refactored + matrix tests

Former-commit-id: f5aebb4caf

.github/workflows/ci.yml

@@ -2,8 +2,8 @@ name: CI
 
 on:
   push:
-    branches-ignore:
+    branches:
-      - release
+      - master
   pull_request:
     branches:
       - master
@@ -11,12 +11,19 @@ on:
 
 jobs:
   ci:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
-    timeout-minutes: 7
+    strategy:
+      matrix:
+        os: [windows-latest, ubuntu-latest]
+    timeout-minutes: 4
     steps:
     - name: Checkout
       uses: actions/checkout@v1
+    - name: Prepare .NET
+      uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: '5.0.x'
     - name: Prepare FFMpeg
-      run: sudo apt-get update && sudo apt-get install -y ffmpeg
+      uses: FedericoCarboni/setup-ffmpeg@v1-beta
     - name: Test with dotnet
       run: dotnet test --logger GitHubActions

FFMpegCore.Test/ArgumentBuilderTest.cs

@@ -6,7 +6,7 @@
 namespace FFMpegCore.Test
 {
     [TestClass]
-    public class ArgumentBuilderTest : BaseTest
+    public class ArgumentBuilderTest
     {
         private readonly string[] _concatFiles = { "1.mp4", "2.mp4", "3.mp4", "4.mp4"};
 

FFMpegCore.Test/AudioTest.cs

@@ -3,98 +3,72 @@
 using FFMpegCore.Test.Resources;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
 using System.IO;
+using System.Linq;
 using System.Threading.Tasks;
 using FFMpegCore.Pipes;
 
 namespace FFMpegCore.Test
 {
     [TestClass]
-    public class AudioTest : BaseTest
+    public class AudioTest 
     {
         [TestMethod]
         public void Audio_Remove()
         {
-            var output = Input.OutputLocation(VideoType.Mp4);
+            using var outputFile = new TemporaryFile("out.mp4");
-
+            
-            try
+            FFMpeg.Mute(TestResources.Mp4Video, outputFile);
-            {
+            var analysis = FFProbe.Analyse(outputFile);
-                FFMpeg.Mute(Input.FullName, output);
+            
-                Assert.IsTrue(File.Exists(output));
+            Assert.IsTrue(analysis.VideoStreams.Any());
-            }
+            Assert.IsTrue(!analysis.AudioStreams.Any());
-            finally
-            {
-                if (File.Exists(output)) File.Delete(output);
-            }
         }
 
         [TestMethod]
         public void Audio_Save()
         {
-            var output = Input.OutputLocation(AudioType.Mp3);
+            using var outputFile = new TemporaryFile("out.mp3");
-
+            
-            try
+            FFMpeg.ExtractAudio(TestResources.Mp4Video, outputFile);
-            {
+            var analysis = FFProbe.Analyse(outputFile);
-                FFMpeg.ExtractAudio(Input.FullName, output);
+            
-                Assert.IsTrue(File.Exists(output));
+            Assert.IsTrue(!analysis.VideoStreams.Any());
-            }
+            Assert.IsTrue(analysis.AudioStreams.Any());
-            finally
-            {
-                if (File.Exists(output)) File.Delete(output);
-            }
         }
         [TestMethod]
         public async Task Audio_FromRaw()
         {
-            await using var file = File.Open(VideoLibrary.LocalAudioRaw.FullName, FileMode.Open);
+            await using var file = File.Open(TestResources.RawAudio, FileMode.Open);
             var memoryStream = new MemoryStream();
             await FFMpegArguments
                 .FromPipeInput(new StreamPipeSource(file), options => options.ForceFormat("s16le"))
-                .OutputToPipe(new StreamPipeSink(memoryStream), options =>
+                .OutputToPipe(new StreamPipeSink(memoryStream), options => options.ForceFormat("mp3"))
-                {
-                    options.WithAudioSamplingRate(48000);
-                    options.WithAudioCodec("libopus");
-                    options.WithCustomArgument("-ac 2");
-                    options.ForceFormat("opus");
-                })
                 .ProcessAsynchronously();
         }
         
         [TestMethod]
         public void Audio_Add()
         {
-            var output = Input.OutputLocation(VideoType.Mp4);
+            using var outputFile = new TemporaryFile("out.mp4");
-            try
+            
-            {
+            var success = FFMpeg.ReplaceAudio(TestResources.Mp4WithoutAudio, TestResources.Mp3Audio, outputFile);
-                var success = FFMpeg.ReplaceAudio(VideoLibrary.LocalVideoNoAudio.FullName, VideoLibrary.LocalAudio.FullName, output);
+            var videoAnalysis = FFProbe.Analyse(TestResources.Mp4WithoutAudio);
-                Assert.IsTrue(success);
+            var audioAnalysis = FFProbe.Analyse(TestResources.Mp3Audio);
-                var audioAnalysis = FFProbe.Analyse(VideoLibrary.LocalVideoNoAudio.FullName);
+            var outputAnalysis = FFProbe.Analyse(outputFile);
-                var videoAnalysis = FFProbe.Analyse(VideoLibrary.LocalAudio.FullName);
+            
-                var outputAnalysis = FFProbe.Analyse(output);
+            Assert.IsTrue(success);
-                Assert.AreEqual(Math.Max(videoAnalysis.Duration.TotalSeconds, audioAnalysis.Duration.TotalSeconds), outputAnalysis.Duration.TotalSeconds, 0.15);
+            Assert.AreEqual(Math.Max(videoAnalysis.Duration.TotalSeconds, audioAnalysis.Duration.TotalSeconds), outputAnalysis.Duration.TotalSeconds, 0.15);
-                Assert.IsTrue(File.Exists(output));
+            Assert.IsTrue(File.Exists(outputFile));
-            }
-            finally
-            {
-                if (File.Exists(output)) File.Delete(output);
-            }
         }
 
         [TestMethod]
         public void Image_AddAudio()
         {
-            var output = Input.OutputLocation(VideoType.Mp4);
+            using var outputFile = new TemporaryFile("out.mp4");
-
+            FFMpeg.PosterWithAudio(TestResources.PngImage, TestResources.Mp3Audio, outputFile);
-            try
+            var analysis = FFProbe.Analyse(TestResources.Mp3Audio);
-            {
+            Assert.IsTrue(analysis.Duration.TotalSeconds > 0);
-                FFMpeg.PosterWithAudio(VideoLibrary.LocalCover.FullName, VideoLibrary.LocalAudio.FullName, output);
+            Assert.IsTrue(File.Exists(outputFile));
-                var analysis = FFProbe.Analyse(VideoLibrary.LocalAudio.FullName);
-                Assert.IsTrue(analysis.Duration.TotalSeconds > 0);
-                Assert.IsTrue(File.Exists(output));
-            }
-            finally
-            {
-                if (File.Exists(output)) File.Delete(output);
-            }
         }
     }
 }

FFMpegCore.Test/BaseTest.cs

@@ -1,15 +0,0 @@
-using FFMpegCore.Test.Resources;
-using System.IO;
-
-namespace FFMpegCore.Test
-{
-    public class BaseTest
-    {
-        protected FileInfo Input;
-
-        public BaseTest()
-        {
-            Input = VideoLibrary.LocalVideo;
-        }
-    }
-}

FFMpegCore.Test/FFMpegCore.Test.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
 
     <IsPackable>false</IsPackable>
 

FFMpegCore.Test/FFProbeTests.cs

@@ -11,16 +11,26 @@ public class FFProbeTests
         [TestMethod]
         public void Probe_TooLongOutput()
         {
-            Assert.ThrowsException<System.Text.Json.JsonException>(() => FFProbe.Analyse(VideoLibrary.LocalVideo.FullName, 5));
+            Assert.ThrowsException<System.Text.Json.JsonException>(() => FFProbe.Analyse(TestResources.Mp4Video, 5));
+        }
+        
+
+        [TestMethod]
+        public async Task Audio_FromStream_Duration()
+        {
+            var fileAnalysis = await FFProbe.AnalyseAsync(TestResources.WebmVideo);
+            await using var inputStream = File.OpenRead(TestResources.WebmVideo);
+            var streamAnalysis = await FFProbe.AnalyseAsync(inputStream);
+            Assert.IsTrue(fileAnalysis.Duration == streamAnalysis.Duration);
         }
         
         [TestMethod]
         public void Probe_Success()
         {
-            var info = FFProbe.Analyse(VideoLibrary.LocalVideo.FullName);
+            var info = FFProbe.Analyse(TestResources.Mp4Video);
             Assert.AreEqual(3, info.Duration.Seconds);
             Assert.AreEqual(".mp4", info.Extension);
-            Assert.AreEqual(VideoLibrary.LocalVideo.FullName, info.Path);
+            Assert.AreEqual(TestResources.Mp4Video, info.Path);
             
             Assert.AreEqual("5.1", info.PrimaryAudioStream.ChannelLayout);
             Assert.AreEqual(6, info.PrimaryAudioStream.Channels);
@@ -47,14 +57,14 @@ public void Probe_Success()
         [TestMethod, Timeout(10000)]
         public async Task Probe_Async_Success()
         {
-            var info = await FFProbe.AnalyseAsync(VideoLibrary.LocalVideo.FullName);
+            var info = await FFProbe.AnalyseAsync(TestResources.Mp4Video);
             Assert.AreEqual(3, info.Duration.Seconds);
         }
 
         [TestMethod, Timeout(10000)]
         public void Probe_Success_FromStream()
         {
-            using var stream = File.OpenRead(VideoLibrary.LocalVideoWebm.FullName);
+            using var stream = File.OpenRead(TestResources.WebmVideo);
             var info = FFProbe.Analyse(stream);
             Assert.AreEqual(3, info.Duration.Seconds);
         }
@@ -62,7 +72,7 @@ public void Probe_Success_FromStream()
         [TestMethod, Timeout(10000)]
         public async Task Probe_Success_FromStream_Async()
         {
-            await using var stream = File.OpenRead(VideoLibrary.LocalVideoWebm.FullName);
+            await using var stream = File.OpenRead(TestResources.WebmVideo);
             var info = await FFProbe.AnalyseAsync(stream);
             Assert.AreEqual(3, info.Duration.Seconds);
         }

FFMpegCore.Test/Resources/TestResources.cs

@@ -0,0 +1,28 @@
+using System;
+using System.IO;
+using FFMpegCore.Enums;
+
+namespace FFMpegCore.Test.Resources
+{
+    public enum AudioType
+    {
+        Mp3
+    }
+
+    public enum ImageType
+    {
+        Png
+    }
+
+    public static class TestResources
+    {
+        public static readonly string Mp4Video = "./Resources/input_3sec.mp4";
+        public static readonly string WebmVideo = "./Resources/input_3sec.webm";
+        public static readonly string Mp4WithoutVideo = "./Resources/input_audio_only_10sec.mp4";
+        public static readonly string Mp4WithoutAudio = "./Resources/input_video_only_3sec.mp4";
+        public static readonly string RawAudio = "./Resources/audio.raw";
+        public static readonly string Mp3Audio = "./Resources/audio.mp3";
+        public static readonly string PngImage = "./Resources/cover.png";
+        public static readonly string ImageCollection = "./Resources/images";
+    }
+}

FFMpegCore.Test/Resources/VideoLibrary.cs

@@ -1,52 +0,0 @@
-using System;
-using System.IO;
-using FFMpegCore.Enums;
-
-namespace FFMpegCore.Test.Resources
-{
-    public enum AudioType
-    {
-        Mp3
-    }
-
-    public enum ImageType
-    {
-        Png
-    }
-
-    public static class VideoLibrary
-    {
-        public static readonly FileInfo LocalVideo = new FileInfo($".{Path.DirectorySeparatorChar}Resources{Path.DirectorySeparatorChar}input_3sec.mp4");
-        public static readonly FileInfo LocalVideoWebm = new FileInfo($".{Path.DirectorySeparatorChar}Resources{Path.DirectorySeparatorChar}input_3sec.webm");
-        public static readonly FileInfo LocalVideoAudioOnly = new FileInfo($".{Path.DirectorySeparatorChar}Resources{Path.DirectorySeparatorChar}input_audio_only_10sec.mp4");
-        public static readonly FileInfo LocalVideoNoAudio = new FileInfo($".{Path.DirectorySeparatorChar}Resources{Path.DirectorySeparatorChar}input_video_only_3sec.mp4");
-        public static readonly FileInfo LocalAudio = new FileInfo($".{Path.DirectorySeparatorChar}Resources{Path.DirectorySeparatorChar}audio.mp3");
-        public static readonly FileInfo LocalAudioRaw = new FileInfo($".{Path.DirectorySeparatorChar}Resources{Path.DirectorySeparatorChar}audio.raw");
-        public static readonly FileInfo LocalCover = new FileInfo($".{Path.DirectorySeparatorChar}Resources{Path.DirectorySeparatorChar}cover.png");
-        public static readonly FileInfo ImageDirectory = new FileInfo($".{Path.DirectorySeparatorChar}Resources{Path.DirectorySeparatorChar}images");
-        public static readonly FileInfo ImageJoinOutput = new FileInfo($".{Path.DirectorySeparatorChar}Resources{Path.DirectorySeparatorChar}images{Path.DirectorySeparatorChar}output.mp4");
-
-        public static string OutputLocation(this FileInfo file, ContainerFormat type)
-        {
-            return OutputLocation(file, type.Extension, "_converted");
-        }
-
-        public static string OutputLocation(this FileInfo file, AudioType type)
-        {
-            return OutputLocation(file, type.ToString(), "_audio");
-        }
-
-        public static string OutputLocation(this FileInfo file, ImageType type)
-        {
-            return OutputLocation(file, type.ToString(), "_screenshot");
-        }
-
-        public static string OutputLocation(this FileInfo file, string type, string keyword)
-        {
-            string originalLocation = file.Directory.FullName,
-                outputFile = file.Name.Replace(file.Extension, keyword + "." + type.ToLowerInvariant());
-
-            return $"{originalLocation}{Path.DirectorySeparatorChar}{Guid.NewGuid()}_{outputFile}";
-        }
-    }
-}

FFMpegCore.Test/TemporaryFile.cs

@@ -0,0 +1,22 @@
+using System;
+using System.IO;
+
+namespace FFMpegCore.Test
+{
+    public class TemporaryFile : IDisposable
+    {
+        private readonly string _path;
+
+        public TemporaryFile(string filename)
+        {
+            _path = Path.Combine(Path.GetTempPath(), $"{Guid.NewGuid()}-{filename}");
+        }
+
+        public static implicit operator string(TemporaryFile temporaryFile) => temporaryFile._path;
+        public void Dispose()
+        {
+            if (File.Exists(_path))
+                File.Delete(_path);
+        }
+    }
+}

FFMpegCore.Test/VideoTest.cs

@@ -15,105 +15,90 @@
 namespace FFMpegCore.Test
 {
     [TestClass]
-    public class VideoTest : BaseTest
+    public class VideoTest
     {
         public bool Convert(ContainerFormat type, bool multithreaded = false, VideoSize size = VideoSize.Original)
         {
-            var output = Input.OutputLocation(type);
+            using var outputFile = new TemporaryFile($"out{type.Extension}");
 
-            try
+            var input = FFProbe.Analyse(TestResources.Mp4Video);
+            FFMpeg.Convert(input, outputFile, type, size: size, multithreaded: multithreaded);
+            var outputVideo = FFProbe.Analyse(outputFile);
+
+            Assert.IsTrue(File.Exists(outputFile));
+            Assert.AreEqual(outputVideo.Duration.TotalSeconds, input.Duration.TotalSeconds, 0.1);
+            if (size == VideoSize.Original)
             {
-                var input = FFProbe.Analyse(Input.FullName);
+                Assert.AreEqual(outputVideo.PrimaryVideoStream.Width, input.PrimaryVideoStream.Width);
-                FFMpeg.Convert(input, output, type, size: size, multithreaded: multithreaded);
+                Assert.AreEqual(outputVideo.PrimaryVideoStream.Height, input.PrimaryVideoStream.Height);
-                var outputVideo = FFProbe.Analyse(output);
+            }
+            else
+            {
+                Assert.AreNotEqual(outputVideo.PrimaryVideoStream.Width, input.PrimaryVideoStream.Width);
+                Assert.AreNotEqual(outputVideo.PrimaryVideoStream.Height, input.PrimaryVideoStream.Height);
+                Assert.AreEqual(outputVideo.PrimaryVideoStream.Height, (int)size);
+            }
 
-                Assert.IsTrue(File.Exists(output));
+            return File.Exists(outputFile) && 
-                Assert.AreEqual(outputVideo.Duration.TotalSeconds, input.Duration.TotalSeconds, 0.1);
+                   outputVideo.Duration == input.Duration &&
-                if (size == VideoSize.Original)
+                   (
-                {
-                    Assert.AreEqual(outputVideo.PrimaryVideoStream.Width, input.PrimaryVideoStream.Width);
-                    Assert.AreEqual(outputVideo.PrimaryVideoStream.Height, input.PrimaryVideoStream.Height);
-                }
-                else
-                {
-                    Assert.AreNotEqual(outputVideo.PrimaryVideoStream.Width, input.PrimaryVideoStream.Width);
-                    Assert.AreNotEqual(outputVideo.PrimaryVideoStream.Height, input.PrimaryVideoStream.Height);
-                    Assert.AreEqual(outputVideo.PrimaryVideoStream.Height, (int)size);
-                }
-                return File.Exists(output) &&
-                       outputVideo.Duration == input.Duration &&
                        (
-                           (
                            size == VideoSize.Original &&
                            outputVideo.PrimaryVideoStream.Width == input.PrimaryVideoStream.Width &&
                            outputVideo.PrimaryVideoStream.Height == input.PrimaryVideoStream.Height
-                           ) ||
+                       ) ||
-                           (
+                       (
                            size != VideoSize.Original &&
                            outputVideo.PrimaryVideoStream.Width != input.PrimaryVideoStream.Width &&
                            outputVideo.PrimaryVideoStream.Height != input.PrimaryVideoStream.Height &&
                            outputVideo.PrimaryVideoStream.Height == (int)size
-                           )
+                       )
-                       );
+                   );
-            }
-            finally
-            {
-                if (File.Exists(output))
-                    File.Delete(output);
-            }
         }
 
         private void ConvertFromStreamPipe(ContainerFormat type, params IArgument[] arguments)
         {
-            var output = Input.OutputLocation(type);
+            using var outputFile = new TemporaryFile($"out{type.Extension}");
+            
+            var input = FFProbe.Analyse(TestResources.WebmVideo);
+            using var inputStream = File.OpenRead(input.Path);
+            var processor = FFMpegArguments
+                .FromPipeInput(new StreamPipeSource(inputStream))
+                .OutputToFile(outputFile, false, opt =>
+                {
+                    foreach (var arg in arguments)
+                        opt.WithArgument(arg);
+                });
 
-            try
+            var scaling = arguments.OfType<ScaleArgument>().FirstOrDefault();
+
+            var success = processor.ProcessSynchronously();
+
+            var outputVideo = FFProbe.Analyse(outputFile);
+
+            Assert.IsTrue(success);
+            Assert.IsTrue(File.Exists(outputFile));
+            Assert.IsTrue(Math.Abs((outputVideo.Duration - input.Duration).TotalMilliseconds) < 1000.0 / input.PrimaryVideoStream.FrameRate);
+
+            if (scaling?.Size == null)
             {
-                var input = FFProbe.Analyse(VideoLibrary.LocalVideoWebm.FullName);
+                Assert.AreEqual(outputVideo.PrimaryVideoStream.Width, input.PrimaryVideoStream.Width);
-                using var inputStream = File.OpenRead(input.Path);
+                Assert.AreEqual(outputVideo.PrimaryVideoStream.Height, input.PrimaryVideoStream.Height);
-                var processor = FFMpegArguments
-                    .FromPipeInput(new StreamPipeSource(inputStream))
-                    .OutputToFile(output, false, opt =>
-                    {
-                        foreach (var arg in arguments)
-                            opt.WithArgument(arg);
-                    });
-
-                var scaling = arguments.OfType<ScaleArgument>().FirstOrDefault();
-
-                var success = processor.ProcessSynchronously();
-
-                var outputVideo = FFProbe.Analyse(output);
-
-                Assert.IsTrue(success);
-                Assert.IsTrue(File.Exists(output));
-                Assert.IsTrue(Math.Abs((outputVideo.Duration - input.Duration).TotalMilliseconds) < 1000.0 / input.PrimaryVideoStream.FrameRate);
-
-                if (scaling?.Size == null)
-                {
-                    Assert.AreEqual(outputVideo.PrimaryVideoStream.Width, input.PrimaryVideoStream.Width);
-                    Assert.AreEqual(outputVideo.PrimaryVideoStream.Height, input.PrimaryVideoStream.Height);
-                }
-                else
-                {
-                    if (scaling.Size.Value.Width != -1)
-                    {
-                        Assert.AreEqual(outputVideo.PrimaryVideoStream.Width, scaling.Size.Value.Width);
-                    }
-
-                    if (scaling.Size.Value.Height != -1)
-                    {
-                        Assert.AreEqual(outputVideo.PrimaryVideoStream.Height, scaling.Size.Value.Height);
-                    }
-
-                    Assert.AreNotEqual(outputVideo.PrimaryVideoStream.Width, input.PrimaryVideoStream.Width);
-                    Assert.AreNotEqual(outputVideo.PrimaryVideoStream.Height, input.PrimaryVideoStream.Height);
-                }
             }
-            finally
+            else
             {
-                if (File.Exists(output))
+                if (scaling.Size.Value.Width != -1)
-                    File.Delete(output);
+                {
+                    Assert.AreEqual(outputVideo.PrimaryVideoStream.Width, scaling.Size.Value.Width);
+                }
+
+                if (scaling.Size.Value.Height != -1)
+                {
+                    Assert.AreEqual(outputVideo.PrimaryVideoStream.Height, scaling.Size.Value.Height);
+                }
+
+                Assert.AreNotEqual(outputVideo.PrimaryVideoStream.Width, input.PrimaryVideoStream.Width);
+                Assert.AreNotEqual(outputVideo.PrimaryVideoStream.Height, input.PrimaryVideoStream.Height);
             }
         }
 
@@ -121,7 +106,7 @@ private void ConvertToStreamPipe(params IArgument[] arguments)
         {
             using var ms = new MemoryStream();
             var processor = FFMpegArguments
-                .FromFileInput(VideoLibrary.LocalVideo)
+                .FromFileInput(TestResources.Mp4Video)
                 .OutputToPipe(new StreamPipeSink(ms), opt =>
                 {
                     foreach (var arg in arguments)
@@ -135,7 +120,7 @@ private void ConvertToStreamPipe(params IArgument[] arguments)
             ms.Position = 0;
             var outputVideo = FFProbe.Analyse(ms);
 
-            var input = FFProbe.Analyse(VideoLibrary.LocalVideo.FullName);
+            var input = FFProbe.Analyse(TestResources.Mp4Video);
             // Assert.IsTrue(Math.Abs((outputVideo.Duration - input.Duration).TotalMilliseconds) < 1000.0 / input.PrimaryVideoStream.FrameRate);
 
             if (scaling?.Size == null)
@@ -162,53 +147,45 @@ private void ConvertToStreamPipe(params IArgument[] arguments)
 
         public void Convert(ContainerFormat type, Action<IMediaAnalysis> validationMethod, params IArgument[] arguments)
         {
-            var output = Input.OutputLocation(type);
+            using var outputFile = new TemporaryFile($"out{type.Extension}");
 
-            try
+            var input = FFProbe.Analyse(TestResources.Mp4Video);
-            {
-                var input = FFProbe.Analyse(Input.FullName);
 
-                var processor = FFMpegArguments
+            var processor = FFMpegArguments
-                    .FromFileInput(VideoLibrary.LocalVideo)
+                .FromFileInput(TestResources.Mp4Video)
-                    .OutputToFile(output, false, opt =>
+                .OutputToFile(outputFile, false, opt =>
                 {
                     foreach (var arg in arguments)
                         opt.WithArgument(arg);
                 });
 
-                var scaling = arguments.OfType<ScaleArgument>().FirstOrDefault();
+            var scaling = arguments.OfType<ScaleArgument>().FirstOrDefault();
-                processor.ProcessSynchronously();
+            processor.ProcessSynchronously();
 
-                var outputVideo = FFProbe.Analyse(output);
+            var outputVideo = FFProbe.Analyse(outputFile);
 
-                Assert.IsTrue(File.Exists(output));
+            Assert.IsTrue(File.Exists(outputFile));
-                Assert.AreEqual(outputVideo.Duration.TotalSeconds, input.Duration.TotalSeconds, 0.1);
+            Assert.AreEqual(outputVideo.Duration.TotalSeconds, input.Duration.TotalSeconds, 0.1);
-                validationMethod?.Invoke(outputVideo);
+            validationMethod?.Invoke(outputVideo);
-                if (scaling?.Size == null)
+            if (scaling?.Size == null)
-                {
-                    Assert.AreEqual(outputVideo.PrimaryVideoStream.Width, input.PrimaryVideoStream.Width);
-                    Assert.AreEqual(outputVideo.PrimaryVideoStream.Height, input.PrimaryVideoStream.Height);
-                }
-                else
-                {
-                    if (scaling.Size.Value.Width != -1)
-                    {
-                        Assert.AreEqual(outputVideo.PrimaryVideoStream.Width, scaling.Size.Value.Width);
-                    }
-
-                    if (scaling.Size.Value.Height != -1)
-                    {
-                        Assert.AreEqual(outputVideo.PrimaryVideoStream.Height, scaling.Size.Value.Height);
-                    }
-
-                    Assert.AreNotEqual(outputVideo.PrimaryVideoStream.Width, input.PrimaryVideoStream.Width);
-                    Assert.AreNotEqual(outputVideo.PrimaryVideoStream.Height, input.PrimaryVideoStream.Height);
-                }
-            }
-            finally
             {
-                if (File.Exists(output))
+                Assert.AreEqual(outputVideo.PrimaryVideoStream.Width, input.PrimaryVideoStream.Width);
-                    File.Delete(output);
+                Assert.AreEqual(outputVideo.PrimaryVideoStream.Height, input.PrimaryVideoStream.Height);
+            }
+            else
+            {
+                if (scaling.Size.Value.Width != -1)
+                {
+                    Assert.AreEqual(outputVideo.PrimaryVideoStream.Width, scaling.Size.Value.Width);
+                }
+
+                if (scaling.Size.Value.Height != -1)
+                {
+                    Assert.AreEqual(outputVideo.PrimaryVideoStream.Height, scaling.Size.Value.Height);
+                }
+
+                Assert.AreNotEqual(outputVideo.PrimaryVideoStream.Width, input.PrimaryVideoStream.Width);
+                Assert.AreNotEqual(outputVideo.PrimaryVideoStream.Height, input.PrimaryVideoStream.Height);
             }
         }
 
@@ -219,50 +196,41 @@ public void Convert(ContainerFormat type, params IArgument[] inputArguments)
 
         public void ConvertFromPipe(ContainerFormat type, System.Drawing.Imaging.PixelFormat fmt, params IArgument[] arguments)
         {
-            var output = Input.OutputLocation(type);
+            using var outputFile = new TemporaryFile($"out{type.Extension}");
 
-            try
+            var videoFramesSource = new RawVideoPipeSource(BitmapSource.CreateBitmaps(128, fmt, 256, 256));
+            var processor = FFMpegArguments.FromPipeInput(videoFramesSource).OutputToFile(outputFile, false, opt =>
             {
-                var videoFramesSource = new RawVideoPipeSource(BitmapSource.CreateBitmaps(128, fmt, 256, 256));
+                foreach (var arg in arguments)
-                var processor = FFMpegArguments.FromPipeInput(videoFramesSource).OutputToFile(output, false, opt =>
+                    opt.WithArgument(arg);
-                {
+            });
-                    foreach (var arg in arguments)
+            var scaling = arguments.OfType<ScaleArgument>().FirstOrDefault();
-                        opt.WithArgument(arg);
+            processor.ProcessSynchronously();
-                });
-                var scaling = arguments.OfType<ScaleArgument>().FirstOrDefault();
-                processor.ProcessSynchronously();
 
-                var outputVideo = FFProbe.Analyse(output);
+            var outputVideo = FFProbe.Analyse(outputFile);
 
-                Assert.IsTrue(File.Exists(output));
+            Assert.IsTrue(File.Exists(outputFile));
 
-                if (scaling?.Size == null)
+            if (scaling?.Size == null)
-                {
-                    Assert.AreEqual(outputVideo.PrimaryVideoStream.Width, videoFramesSource.Width);
-                    Assert.AreEqual(outputVideo.PrimaryVideoStream.Height, videoFramesSource.Height);
-                }
-                else
-                {
-                    if (scaling.Size.Value.Width != -1)
-                    {
-                        Assert.AreEqual(outputVideo.PrimaryVideoStream.Width, scaling.Size.Value.Width);
-                    }
-
-                    if (scaling.Size.Value.Height != -1)
-                    {
-                        Assert.AreEqual(outputVideo.PrimaryVideoStream.Height, scaling.Size.Value.Height);
-                    }
-
-                    Assert.AreNotEqual(outputVideo.PrimaryVideoStream.Width, videoFramesSource.Width);
-                    Assert.AreNotEqual(outputVideo.PrimaryVideoStream.Height, videoFramesSource.Height);
-                }
-            }
-            finally
             {
-                if (File.Exists(output))
+                Assert.AreEqual(outputVideo.PrimaryVideoStream.Width, videoFramesSource.Width);
-                    File.Delete(output);
+                Assert.AreEqual(outputVideo.PrimaryVideoStream.Height, videoFramesSource.Height);
             }
+            else
+            {
+                if (scaling.Size.Value.Width != -1)
+                {
+                    Assert.AreEqual(outputVideo.PrimaryVideoStream.Width, scaling.Size.Value.Width);
+                }
 
+                if (scaling.Size.Value.Height != -1)
+                {
+                    Assert.AreEqual(outputVideo.PrimaryVideoStream.Height, scaling.Size.Value.Height);
+                }
+
+                Assert.AreNotEqual(outputVideo.PrimaryVideoStream.Width, videoFramesSource.Width);
+                Assert.AreNotEqual(outputVideo.PrimaryVideoStream.Height, videoFramesSource.Height);
+            }
         }
 
         [TestMethod, Timeout(10000)]
@@ -287,7 +255,6 @@ public void Video_ToMP4_Args()
         [DataTestMethod, Timeout(10000)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format24bppRgb)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format32bppArgb)]
-        // [DataRow(PixelFormat.Format48bppRgb)]
         public void Video_ToMP4_Args_Pipe(System.Drawing.Imaging.PixelFormat pixelFormat)
         {
             ConvertFromPipe(VideoType.Mp4, pixelFormat, new VideoCodecArgument(VideoCodec.LibX264));
@@ -307,11 +274,26 @@ await Assert.ThrowsExceptionAsync<FFMpegException>(async () =>
                 await using var ms = new MemoryStream();
                 var pipeSource = new StreamPipeSink(ms);
                 await FFMpegArguments
-                    .FromFileInput(VideoLibrary.LocalVideo)
+                    .FromFileInput(TestResources.Mp4Video)
                     .OutputToPipe(pipeSource, opt => opt.ForceFormat("mkv"))
                     .ProcessAsynchronously();
             });
         }
+        [TestMethod, Timeout(10000)]
+        public void Video_StreamFile_OutputToMemoryStream()
+        {
+            var output = new MemoryStream();
+
+            FFMpegArguments
+                .FromPipeInput(new StreamPipeSource(File.OpenRead(TestResources.WebmVideo)), options => options.ForceFormat("webm"))
+                .OutputToPipe(new StreamPipeSink(output), options => options
+                    .ForceFormat("mpegts"))
+                .ProcessSynchronously();
+
+            output.Position = 0;
+            var result = FFProbe.Analyse(output);
+            Console.WriteLine(result.Duration);
+        }
 
         [TestMethod, Timeout(10000)]
         public void Video_ToMP4_Args_StreamOutputPipe_Failure()
@@ -326,7 +308,7 @@ public void Video_ToMP4_Args_StreamOutputPipe_Async()
             using var ms = new MemoryStream();
             var pipeSource = new StreamPipeSink(ms);
             FFMpegArguments
-                .FromFileInput(VideoLibrary.LocalVideo)
+                .FromFileInput(TestResources.Mp4Video)
                 .OutputToPipe(pipeSource, opt => opt
                     .WithVideoCodec(VideoCodec.LibX264)
                     .ForceFormat("matroska"))
@@ -337,11 +319,11 @@ public void Video_ToMP4_Args_StreamOutputPipe_Async()
         [TestMethod, Timeout(10000)]
         public async Task TestDuplicateRun()
         {
-            FFMpegArguments.FromFileInput(VideoLibrary.LocalVideo)
+            FFMpegArguments.FromFileInput(TestResources.Mp4Video)
                 .OutputToFile("temporary.mp4")
                 .ProcessSynchronously();
             
-            await FFMpegArguments.FromFileInput(VideoLibrary.LocalVideo)
+            await FFMpegArguments.FromFileInput(TestResources.Mp4Video)
                 .OutputToFile("temporary.mp4")
                 .ProcessAsynchronously();
             
@@ -372,7 +354,6 @@ public void Video_ToTS_Args()
         [DataTestMethod, Timeout(10000)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format24bppRgb)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format32bppArgb)]
-        // [DataRow(PixelFormat.Format48bppRgb)]
         public void Video_ToTS_Args_Pipe(System.Drawing.Imaging.PixelFormat pixelFormat)
         {
             ConvertFromPipe(VideoType.Ts, pixelFormat, new ForceFormatArgument(VideoType.Ts));
@@ -447,190 +428,126 @@ public void Video_ToOGV_MultiThread()
         [TestMethod, Timeout(10000)]
         public void Video_Snapshot_InMemory()
         {
-            var output = Input.OutputLocation(ImageType.Png);
+            var input = FFProbe.Analyse(TestResources.Mp4Video);
-
+            using var bitmap = FFMpeg.Snapshot(input);
-            try
+            
-            {
+            Assert.AreEqual(input.PrimaryVideoStream.Width, bitmap.Width);
-                var input = FFProbe.Analyse(Input.FullName);
+            Assert.AreEqual(input.PrimaryVideoStream.Height, bitmap.Height);
-
+            Assert.AreEqual(bitmap.RawFormat, ImageFormat.Png);
-                using var bitmap = FFMpeg.Snapshot(input);
-                Assert.AreEqual(input.PrimaryVideoStream.Width, bitmap.Width);
-                Assert.AreEqual(input.PrimaryVideoStream.Height, bitmap.Height);
-                Assert.AreEqual(bitmap.RawFormat, ImageFormat.Png);
-            }
-            finally
-            {
-                if (File.Exists(output))
-                    File.Delete(output);
-            }
         }
 
         [TestMethod, Timeout(10000)]
         public void Video_Snapshot_PersistSnapshot()
         {
-            var output = Input.OutputLocation(ImageType.Png);
+            var outputPath = new TemporaryFile("out.png");
-            try
+            var input = FFProbe.Analyse(TestResources.Mp4Video);
-            {
-                var input = FFProbe.Analyse(Input.FullName);
 
-                FFMpeg.Snapshot(input, output);
+            FFMpeg.Snapshot(input, outputPath);
 
-                var bitmap = Image.FromFile(output);
+            using var bitmap = Image.FromFile(outputPath);
-                Assert.AreEqual(input.PrimaryVideoStream.Width, bitmap.Width);
+            Assert.AreEqual(input.PrimaryVideoStream.Width, bitmap.Width);
-                Assert.AreEqual(input.PrimaryVideoStream.Height, bitmap.Height);
+            Assert.AreEqual(input.PrimaryVideoStream.Height, bitmap.Height);
-                Assert.AreEqual(bitmap.RawFormat, ImageFormat.Png);
+            Assert.AreEqual(bitmap.RawFormat, ImageFormat.Png);
-                bitmap.Dispose();
-            }
-            finally
-            {
-                if (File.Exists(output))
-                    File.Delete(output);
-            }
         }
 
         [TestMethod, Timeout(10000)]
         public void Video_Join()
         {
-            var output = Input.OutputLocation(VideoType.Mp4);
+            var inputCopy = new TemporaryFile("copy-input.mp4");
-            var newInput = Input.OutputLocation(VideoType.Mp4.Name, "duplicate");
+            File.Copy(TestResources.Mp4Video, inputCopy);
-            try
-            {
-                var input = FFProbe.Analyse(Input.FullName);
-                File.Copy(Input.FullName, newInput);
-
-                var success = FFMpeg.Join(output, Input.FullName, newInput);
-                Assert.IsTrue(success);
-
-                Assert.IsTrue(File.Exists(output));
-                var expectedDuration = input.Duration * 2;
-                var result = FFProbe.Analyse(output);
-                Assert.AreEqual(expectedDuration.Days, result.Duration.Days);
-                Assert.AreEqual(expectedDuration.Hours, result.Duration.Hours);
-                Assert.AreEqual(expectedDuration.Minutes, result.Duration.Minutes);
-                Assert.AreEqual(expectedDuration.Seconds, result.Duration.Seconds);
-                Assert.AreEqual(input.PrimaryVideoStream.Height, result.PrimaryVideoStream.Height);
-                Assert.AreEqual(input.PrimaryVideoStream.Width, result.PrimaryVideoStream.Width);
-            }
-            finally
-            {
-                if (File.Exists(output))
-                    File.Delete(output);
-
-                if (File.Exists(newInput))
-                    File.Delete(newInput);
-            }
             
+            var outputPath = new TemporaryFile("out.mp4");
+            var input = FFProbe.Analyse(TestResources.Mp4Video);
+            var success = FFMpeg.Join(outputPath, TestResources.Mp4Video, inputCopy);
+            Assert.IsTrue(success);
+            Assert.IsTrue(File.Exists(outputPath));
+            
+            var expectedDuration = input.Duration * 2;
+            var result = FFProbe.Analyse(outputPath);
+            Assert.AreEqual(expectedDuration.Days, result.Duration.Days);
+            Assert.AreEqual(expectedDuration.Hours, result.Duration.Hours);
+            Assert.AreEqual(expectedDuration.Minutes, result.Duration.Minutes);
+            Assert.AreEqual(expectedDuration.Seconds, result.Duration.Seconds);
+            Assert.AreEqual(input.PrimaryVideoStream.Height, result.PrimaryVideoStream.Height);
+            Assert.AreEqual(input.PrimaryVideoStream.Width, result.PrimaryVideoStream.Width);
         }
 
         [TestMethod, Timeout(10000)]
         public void Video_Join_Image_Sequence()
         {
-            try
+            var imageSet = new List<ImageInfo>();
-            {
+            Directory.EnumerateFiles(TestResources.ImageCollection)
-                var imageSet = new List<ImageInfo>();
+                .Where(file => file.ToLower().EndsWith(".png"))
-                Directory.EnumerateFiles(VideoLibrary.ImageDirectory.FullName)
+                .ToList()
-                    .Where(file => file.ToLower().EndsWith(".png"))
+                .ForEach(file =>
-                    .ToList()
-                    .ForEach(file =>
-                    {
-                        for (var i = 0; i < 15; i++)
-                        {
-                            imageSet.Add(new ImageInfo(file));
-                        }
-                    });
-
-                var success = FFMpeg.JoinImageSequence(VideoLibrary.ImageJoinOutput.FullName, images: imageSet.ToArray());
-                Assert.IsTrue(success);
-                var result = FFProbe.Analyse(VideoLibrary.ImageJoinOutput.FullName);
-
-                VideoLibrary.ImageJoinOutput.Refresh();
-
-                Assert.IsTrue(VideoLibrary.ImageJoinOutput.Exists);
-                Assert.AreEqual(3, result.Duration.Seconds);
-                Assert.AreEqual(imageSet.First().Width, result.PrimaryVideoStream.Width);
-                Assert.AreEqual(imageSet.First().Height, result.PrimaryVideoStream.Height);
-            }
-            finally
-            {
-                VideoLibrary.ImageJoinOutput.Refresh();
-                if (VideoLibrary.ImageJoinOutput.Exists)
                 {
-                    VideoLibrary.ImageJoinOutput.Delete();
+                    for (var i = 0; i < 15; i++)
-                }
+                    {
-            }
+                        imageSet.Add(new ImageInfo(file));
+                    }
+                });
+
+            var outputFile = new TemporaryFile("out.mp4");
+            var success = FFMpeg.JoinImageSequence(outputFile, images: imageSet.ToArray());
+            Assert.IsTrue(success);
+            var result = FFProbe.Analyse(outputFile);
+            Assert.AreEqual(3, result.Duration.Seconds);
+            Assert.AreEqual(imageSet.First().Width, result.PrimaryVideoStream.Width);
+            Assert.AreEqual(imageSet.First().Height, result.PrimaryVideoStream.Height);
         }
 
         [TestMethod, Timeout(10000)]
         public void Video_With_Only_Audio_Should_Extract_Metadata()
         {
-            var video = FFProbe.Analyse(VideoLibrary.LocalVideoAudioOnly.FullName);
+            var video = FFProbe.Analyse(TestResources.Mp4WithoutVideo);
             Assert.AreEqual(null, video.PrimaryVideoStream);
             Assert.AreEqual("aac", video.PrimaryAudioStream.CodecName);
             Assert.AreEqual(10, video.Duration.TotalSeconds, 0.5);
-            // Assert.AreEqual(1.25, video.Size);
         }
 
         [TestMethod, Timeout(10000)]
         public void Video_Duration()
         {
-            var video = FFProbe.Analyse(VideoLibrary.LocalVideo.FullName);
+            var video = FFProbe.Analyse(TestResources.Mp4Video);
-            var output = Input.OutputLocation(VideoType.Mp4);
+            var outputFile = new TemporaryFile("out.mp4");
 
-            try
+            FFMpegArguments
-            {
+                .FromFileInput(TestResources.Mp4Video)
-                FFMpegArguments
+                .OutputToFile(outputFile, false, opt => opt.WithDuration(TimeSpan.FromSeconds(video.Duration.TotalSeconds - 2)))
-                    .FromFileInput(VideoLibrary.LocalVideo)
+                .ProcessSynchronously();
-                    .OutputToFile(output, false, opt => opt.WithDuration(TimeSpan.FromSeconds(video.Duration.TotalSeconds - 2)))
-                    .ProcessSynchronously();
 
-                Assert.IsTrue(File.Exists(output));
+            Assert.IsTrue(File.Exists(outputFile));
-                var outputVideo = FFProbe.Analyse(output);
+            var outputVideo = FFProbe.Analyse(outputFile);
 
-                Assert.AreEqual(video.Duration.Days, outputVideo.Duration.Days);
+            Assert.AreEqual(video.Duration.Days, outputVideo.Duration.Days);
-                Assert.AreEqual(video.Duration.Hours, outputVideo.Duration.Hours);
+            Assert.AreEqual(video.Duration.Hours, outputVideo.Duration.Hours);
-                Assert.AreEqual(video.Duration.Minutes, outputVideo.Duration.Minutes);
+            Assert.AreEqual(video.Duration.Minutes, outputVideo.Duration.Minutes);
-                Assert.AreEqual(video.Duration.Seconds - 2, outputVideo.Duration.Seconds);
+            Assert.AreEqual(video.Duration.Seconds - 2, outputVideo.Duration.Seconds);
-            }
-            finally
-            {
-                if (File.Exists(output))
-                    File.Delete(output);
-            }
         }
 
         [TestMethod, Timeout(10000)]
         public void Video_UpdatesProgress()
         {
-            var output = Input.OutputLocation(VideoType.Mp4);
+            var outputFile = new TemporaryFile("out.mp4");
 
             var percentageDone = 0.0;
             var timeDone = TimeSpan.Zero;
             void OnPercentageProgess(double percentage) => percentageDone = percentage;
             void OnTimeProgess(TimeSpan time) => timeDone = time;
 
-            var analysis = FFProbe.Analyse(VideoLibrary.LocalVideo.FullName);
+            var analysis = FFProbe.Analyse(TestResources.Mp4Video);
+            var success = FFMpegArguments
+                .FromFileInput(TestResources.Mp4Video)
+                .OutputToFile(outputFile, false, opt => opt
+                    .WithDuration(TimeSpan.FromSeconds(2)))
+                .NotifyOnProgress(OnPercentageProgess, analysis.Duration)
+                .NotifyOnProgress(OnTimeProgess)
+                .ProcessSynchronously();
 
-
+            Assert.IsTrue(success);
-            try
+            Assert.IsTrue(File.Exists(outputFile));
-            {
+            Assert.AreNotEqual(0.0, percentageDone);
-                var success = FFMpegArguments
+            Assert.AreNotEqual(TimeSpan.Zero, timeDone);
-                    .FromFileInput(VideoLibrary.LocalVideo)
-                    .OutputToFile(output, false, opt => opt
-                        .WithDuration(TimeSpan.FromSeconds(2)))
-                    .NotifyOnProgress(OnPercentageProgess, analysis.Duration)
-                    .NotifyOnProgress(OnTimeProgess)
-                    .ProcessSynchronously();
-
-                Assert.IsTrue(success);
-                Assert.IsTrue(File.Exists(output));
-                Assert.AreNotEqual(0.0, percentageDone);
-                Assert.AreNotEqual(TimeSpan.Zero, timeDone);
-            }
-            finally
-            {
-                if (File.Exists(output))
-                    File.Delete(output);
-            }
         }
 
         [TestMethod, Timeout(10000)]
@@ -656,11 +573,11 @@ public void Video_TranscodeInMemory()
         [TestMethod, Timeout(10000)]
         public async Task Video_Cancel_Async()
         {
-            var output = Input.OutputLocation(VideoType.Mp4);
+            var outputFile = new TemporaryFile("out.mp4");
             
             var task = FFMpegArguments
-                .FromFileInput(VideoLibrary.LocalVideo)
+                .FromFileInput(TestResources.Mp4Video)
-                .OutputToFile(output, false, opt => opt
+                .OutputToFile(outputFile, false, opt => opt
                     .Resize(new Size(1000, 1000))
                     .WithAudioCodec(AudioCodec.Aac)
                     .WithVideoCodec(VideoCodec.LibX264)
@@ -670,19 +587,11 @@ public async Task Video_Cancel_Async()
                 .CancellableThrough(out var cancel)
                 .ProcessAsynchronously(false);
             
-            try
+            await Task.Delay(300);
-            {
+            cancel();
-                await Task.Delay(300);
-                cancel();
             
-                var result = await task;
+            var result = await task;
-                Assert.IsFalse(result);
+            Assert.IsFalse(result);
-            }
-            finally
-            {
-                if (File.Exists(output))
-                    File.Delete(output);
-            }
         }
     }
 }

FFMpegCore/FFMpeg/Arguments/InputPipeArgument.cs

@@ -17,7 +17,7 @@ public InputPipeArgument(IPipeSource writer) : base(PipeDirection.Out)
             Writer = writer;
         }
 
-        public override string Text => $"-y {Writer.GetFormat()} -i \"{PipePath}\"";
+        public override string Text => $"-y {Writer.GetStreamArguments()} -i \"{PipePath}\"";
 
         protected override async Task ProcessDataAsync(CancellationToken token)
         {

FFMpegCore/FFMpeg/Arguments/PipeArgument.cs

@@ -42,7 +42,7 @@ public async Task During(CancellationToken cancellationToken = default)
             {
                 await ProcessDataAsync(cancellationToken);
                 Debug.WriteLine($"Disconnecting NamedPipeServerStream on {GetType().Name}");
-                Pipe.Disconnect();
+                Pipe?.Disconnect();
             }
             catch (TaskCanceledException)
             {

FFMpegCore/FFMpeg/Enums/ContainerFormat.cs

@@ -4,7 +4,7 @@ namespace FFMpegCore.Enums
 {
     public class ContainerFormat
     {
-        private static readonly Regex _formatRegex = new Regex(@"([D ])([E ])\s+([a-z0-9_]+)\s+(.+)");
+        private static readonly Regex FormatRegex = new Regex(@"([D ])([E ])\s+([a-z0-9_]+)\s+(.+)");
 
         public string Name { get; private set; }
         public bool DemuxingSupported { get; private set; }
@@ -27,17 +27,19 @@ internal ContainerFormat(string name)
 
         internal static bool TryParse(string line, out ContainerFormat fmt)
         {
-            var match = _formatRegex.Match(line);
+            var match = FormatRegex.Match(line);
             if (!match.Success)
             {
                 fmt = null!;
                 return false;
             }
 
-            fmt = new ContainerFormat(match.Groups[3].Value);
+            fmt = new ContainerFormat(match.Groups[3].Value)
-            fmt.DemuxingSupported = match.Groups[1].Value == " ";
+            {
-            fmt.MuxingSupported = match.Groups[2].Value == " ";
+                DemuxingSupported = match.Groups[1].Value == " ",
-            fmt.Description = match.Groups[4].Value;
+                MuxingSupported = match.Groups[2].Value == " ",
+                Description = match.Groups[4].Value
+            };
             return true;
         }
     }

FFMpegCore/FFMpeg/FFMpeg.cs

@@ -69,7 +69,8 @@ public static Bitmap Snapshot(IMediaAnalysis source, Size? size = null, TimeSpan
                 .ProcessSynchronously();
 
             ms.Position = 0;
-            return new Bitmap(ms);
+            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

FFMpegCore/FFMpeg/Pipes/IPipeSource.cs

@@ -8,7 +8,7 @@ namespace FFMpegCore.Pipes
     /// </summary>
     public interface IPipeSource
     {
-        string GetFormat();
+        string GetStreamArguments();
         Task WriteAsync(System.IO.Stream outputStream, CancellationToken cancellationToken);
     }
 }

FFMpegCore/FFMpeg/Pipes/RawVideoPipeSource.cs

@@ -25,7 +25,7 @@ public RawVideoPipeSource(IEnumerator<IVideoFrame> framesEnumerator)
 
         public RawVideoPipeSource(IEnumerable<IVideoFrame> framesEnumerator) : this(framesEnumerator.GetEnumerator()) { }
 
-        public string GetFormat()
+        public string GetStreamArguments()
         {
             if (!_formatInitialized)
             {

FFMpegCore/FFMpeg/Pipes/StreamPipeSource.cs

@@ -17,8 +17,8 @@ public StreamPipeSource(System.IO.Stream source)
             Source = source;
         }
 
-        public Task WriteAsync(System.IO.Stream outputStream, CancellationToken cancellationToken) => Source.CopyToAsync(outputStream, BlockSize, cancellationToken);
+        public string GetStreamArguments() => StreamFormat;
 
-        public string GetFormat() => StreamFormat;
+        public Task WriteAsync(System.IO.Stream outputStream, CancellationToken cancellationToken) => Source.CopyToAsync(outputStream, BlockSize, cancellationToken);
     }
 }

FFMpegCore/FFMpegCore.csproj

@@ -9,9 +9,9 @@
     <Version>3.0.0.0</Version>
     <AssemblyVersion>3.0.0.0</AssemblyVersion>
     <FileVersion>3.0.0.0</FileVersion>
-    <PackageReleaseNotes>- Fix NullReferenceException on Disconnect after Dispose</PackageReleaseNotes>
+    <PackageReleaseNotes>- Fix snapshot in memory dispose exception</PackageReleaseNotes>
     <LangVersion>8</LangVersion>
-    <PackageVersion>3.2.1</PackageVersion>
+    <PackageVersion>3.2.2</PackageVersion>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
     <Authors>Malte Rosenbjerg, Vlad Jerca</Authors>
     <PackageTags>ffmpeg ffprobe convert video audio mediafile resize analyze muxing</PackageTags>

FFMpegCore/FFMpegCore.csproj.DotSettings

@@ -0,0 +1,2 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=ffmpeg/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>

FFMpegCore/FFProbe/FFProbe.cs

@@ -106,7 +106,7 @@ private static Instance PrepareInstance(string filePath, int outputCapacity)
         {
             FFProbeHelper.RootExceptionCheck();
             FFProbeHelper.VerifyFFProbeExists();
-            var arguments = $"-print_format json -show_format -sexagesimal -show_streams \"{filePath}\"";
+            var arguments = $"-loglevel error -print_format json -show_format -sexagesimal -show_streams \"{filePath}\"";
             var instance = new Instance(FFMpegOptions.Options.FFProbeBinary(), arguments) {DataBufferCapacity = outputCapacity};
             return instance;
         }