Merge branch 'master' into add-audiofilters

.github/workflows/ci.yml

@@ -1,13 +1,6 @@
 name: CI
 
 on:
-  push:
-    branches:
-      - master
-    paths:
-    - .github/workflows/ci.yml
-    - FFMpegCore/**
-    - FFMpegCore.Test/**
   pull_request:
     branches:
       - master
@@ -25,13 +18,20 @@ jobs:
         os: [windows-latest, ubuntu-latest]
     timeout-minutes: 6
     steps:
+
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
+
     - name: Prepare .NET
-      uses: actions/setup-dotnet@v1
+      uses: actions/setup-dotnet@v3
       with:
-        dotnet-version: '6.0.x'
+        dotnet-version: '7.0.x'
+
     - name: Prepare FFMpeg
-      uses: FedericoCarboni/setup-ffmpeg@v1
+      uses: Iamshankhadeep/setup-ffmpeg@v1.2
+      with:
+        token: ${{ secrets.GITHUB_TOKEN }}
+        version: "4.4"
+
     - name: Test with dotnet
-      run: dotnet test --logger GitHubActions
+      run: dotnet test FFMpegCore.sln --logger GitHubActions

.github/workflows/release.yml

@@ -8,13 +8,16 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
-    - name: Prepare .NET
+      
-      uses: actions/setup-dotnet@v1
+    - name: Prepare .NET
-      with:
+      uses: actions/setup-dotnet@v3
-        dotnet-version: '6.0.x'
+      with:
-    - name: Build solution
+        dotnet-version: '7.0.x'
-      run: dotnet build --output build -c Release
+        
-    - name: Publish NuGet package
+    - name: Build solution
-      run: dotnet nuget push "build/*.nupkg" --source nuget.org --api-key ${{ secrets.NUGET_TOKEN }}
+      run: dotnet pack FFMpegCore.sln --output build -c Release
+      
+    - name: Publish NuGet package
+      run: dotnet nuget push build/*.nupkg --source nuget.org --api-key ${{ secrets.NUGET_TOKEN }}
       

Directory.Build.props

@@ -0,0 +1,15 @@
+<Project>
+    <PropertyGroup>
+        <TargetFramework>netstandard2.0</TargetFramework>
+        <NeutralLanguage>en</NeutralLanguage>
+        <AssemblyVersion>5.0.0.0</AssemblyVersion>
+        <LangVersion>default</LangVersion>
+        <Nullable>enable</Nullable>
+
+        <RepositoryType>GitHub</RepositoryType>
+        <RepositoryUrl>https://github.com/rosenbjerg/FFMpegCore</RepositoryUrl>
+        <PackageProjectUrl>https://github.com/rosenbjerg/FFMpegCore</PackageProjectUrl>
+        <PackageLicenseExpression>MIT</PackageLicenseExpression>
+        <NeutralLanguage>en</NeutralLanguage>
+    </PropertyGroup>
+</Project>

FFMpegCore.Examples/FFMpegCore.Examples.csproj

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

FFMpegCore.Examples/Program.cs

@@ -5,7 +5,7 @@
 using FFMpegCore;
 using FFMpegCore.Enums;
 using FFMpegCore.Pipes;
-using FFMpegCore.Extend;
+using FFMpegCore.Extensions.System.Drawing.Common;
 
 var inputPath = "/path/to/input";
 var outputPath = "/path/to/output";
@@ -34,7 +34,7 @@
 
 {
     // process the snapshot in-memory and use the Bitmap directly
-    var bitmap = FFMpeg.Snapshot(inputPath, new Size(200, 400), TimeSpan.FromMinutes(1));
+    var bitmap = FFMpegImage.Snapshot(inputPath, new Size(200, 400), TimeSpan.FromMinutes(1));
 
     // or persists the image on the drive
     FFMpeg.Snapshot(inputPath, outputPath, new Size(200, 400), TimeSpan.FromMinutes(1));
@@ -61,7 +61,7 @@ await FFMpegArguments
 }
 
 {
-    FFMpeg.JoinImageSequence(@"..\joined_video.mp4", frameRate: 1,
+    FFMpegImage.JoinImageSequence(@"..\joined_video.mp4", frameRate: 1,
         ImageInfo.FromPath(@"..\1.png"),
         ImageInfo.FromPath(@"..\2.png"),
         ImageInfo.FromPath(@"..\3.png")
@@ -83,9 +83,9 @@ await FFMpegArguments
 
 var inputImagePath = "/path/to/input/image";
 {
-    FFMpeg.PosterWithAudio(inputPath, inputAudioPath, outputPath);
+    FFMpegImage.PosterWithAudio(inputPath, inputAudioPath, outputPath);
-    // or
+    // or 
-    var image = Image.FromFile(inputImagePath);
+    using var image = Image.FromFile(inputImagePath);
     image.AddAudio(inputAudioPath, outputPath);
 }
 

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

@@ -2,7 +2,7 @@
 using System.Drawing;
 using System.IO;
 
-namespace FFMpegCore.Extend
+namespace FFMpegCore.Extensions.System.Drawing.Common
 {
     public static class BitmapExtensions
     {
@@ -12,7 +12,7 @@ public static bool AddAudio(this Image poster, string audio, string output)
             poster.Save(destination);
             try
             {
-                return FFMpeg.PosterWithAudio(destination, audio, output);
+                return FFMpegImage.PosterWithAudio(destination, audio, output);
             }
             finally
             {

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

@@ -7,7 +7,7 @@
 using System.Threading.Tasks;
 using FFMpegCore.Pipes;
 
-namespace FFMpegCore.Extend
+namespace FFMpegCore.Extensions.System.Drawing.Common
 {
     public class BitmapVideoFrameWrapper : IVideoFrame, IDisposable
     {

FFMpegCore.Extensions.System.Drawing.Common/FFMpegCore.Extensions.System.Drawing.Common.csproj

@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <IsPackable>true</IsPackable>
+        <Description>Image extension for FFMpegCore using System.Common.Drawing</Description>
+        <PackageVersion>5.0.0</PackageVersion>
+        <PackageReleaseNotes>
+        </PackageReleaseNotes>
+        <PackageTags>ffmpeg ffprobe convert video audio mediafile resize analyze muxing</PackageTags>
+        <Authors>Malte Rosenbjerg, Vlad Jerca, Max Bagryantsev</Authors>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <PackageReference Include="System.Drawing.Common" Version="7.0.0" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\FFMpegCore\FFMpegCore.csproj" />
+    </ItemGroup>
+
+</Project>

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

@@ -0,0 +1,138 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using FFMpegCore.Enums;
+using FFMpegCore.Helpers;
+using FFMpegCore.Pipes;
+
+namespace FFMpegCore.Extensions.System.Drawing.Common
+{
+    public static class FFMpegImage
+    {
+        public static void ConversionSizeExceptionCheck(Image image)
+            => FFMpegHelper.ConversionSizeExceptionCheck(image.Size.Width, image.Size.Height);
+
+        /// <summary>
+        /// Converts an image sequence to a video.
+        /// </summary>
+        /// <param name="output">Output video file.</param>
+        /// <param name="frameRate">FPS</param>
+        /// <param name="images">Image sequence collection</param>
+        /// <returns>Output video information.</returns>
+        public static bool JoinImageSequence(string output, double frameRate = 30, params ImageInfo[] images)
+        {
+            var tempFolderName = Path.Combine(GlobalFFOptions.Current.TemporaryFilesFolder, Guid.NewGuid().ToString());
+            var temporaryImageFiles = images.Select((imageInfo, index) =>
+            {
+                using var image = Image.FromFile(imageInfo.FullName);
+                FFMpegHelper.ConversionSizeExceptionCheck(image.Width, image.Height);
+                var destinationPath = Path.Combine(tempFolderName, $"{index.ToString().PadLeft(9, '0')}{imageInfo.Extension}");
+                Directory.CreateDirectory(tempFolderName);
+                File.Copy(imageInfo.FullName, destinationPath);
+                return destinationPath;
+            }).ToArray();
+
+            var firstImage = images.First();
+            try
+            {
+                return FFMpegArguments
+                    .FromFileInput(Path.Combine(tempFolderName, "%09d.png"), false)
+                    .OutputToFile(output, true, options => options
+                        .ForcePixelFormat("yuv420p")
+                        .Resize(firstImage.Width, firstImage.Height)
+                        .WithFramerate(frameRate))
+                    .ProcessSynchronously();
+            }
+            finally
+            {
+                Cleanup(temporaryImageFiles);
+                Directory.Delete(tempFolderName);
+            }
+        }
+        /// <summary>
+        ///     Adds a poster image to an audio file.
+        /// </summary>
+        /// <param name="image">Source image file.</param>
+        /// <param name="audio">Source audio file.</param>
+        /// <param name="output">Output video file.</param>
+        /// <returns></returns>
+        public static bool PosterWithAudio(string image, string audio, string output)
+        {
+            FFMpegHelper.ExtensionExceptionCheck(output, FileExtension.Mp4);
+            using (var img = Image.FromFile(image))
+                FFMpegHelper.ConversionSizeExceptionCheck(img.Width, img.Height);
+
+            return FFMpegArguments
+                .FromFileInput(image, false, options => options
+                    .Loop(1)
+                    .ForceFormat("image2"))
+                .AddFileInput(audio)
+                .OutputToFile(output, true, options => options
+                    .ForcePixelFormat("yuv420p")
+                    .WithVideoCodec(VideoCodec.LibX264)
+                    .WithConstantRateFactor(21)
+                    .WithAudioBitrate(AudioQuality.Normal)
+                    .UsingShortest())
+                .ProcessSynchronously();
+        }
+        
+        /// <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 Bitmap 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 = 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>
+        /// <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<Bitmap> 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 new Bitmap(ms);
+        }
+        private static void Cleanup(IEnumerable<string> pathList)
+        {
+            foreach (var path in pathList)
+            {
+                if (File.Exists(path))
+                    File.Delete(path);
+            }
+        }
+    }
+}

FFMpegCore.Test/AudioTest.cs

@@ -9,6 +9,8 @@
 using System.IO;
 using System.Linq;
 using System.Threading.Tasks;
+using FFMpegCore.Extensions.System.Drawing.Common;
+using FFMpegCore.Test.Utilities;
 
 namespace FFMpegCore.Test
 {
@@ -64,11 +66,11 @@ public void Audio_Add()
             Assert.IsTrue(File.Exists(outputFile));
         }
 
-        [TestMethod]
+        [WindowsOnlyTestMethod]
         public void Image_AddAudio()
         {
             using var outputFile = new TemporaryFile("out.mp4");
-            FFMpeg.PosterWithAudio(TestResources.PngImage, TestResources.Mp3Audio, outputFile);
+            FFMpegImage.PosterWithAudio(TestResources.PngImage, TestResources.Mp3Audio, outputFile);
             var analysis = FFProbe.Analyse(TestResources.Mp3Audio);
             Assert.IsTrue(analysis.Duration.TotalSeconds > 0);
             Assert.IsTrue(File.Exists(outputFile));
@@ -239,7 +241,7 @@ public void Audio_Pan_ToMono()
 
             Assert.IsTrue(success);
             Assert.AreEqual(1, mediaAnalysis.AudioStreams.Count);
-            Assert.AreEqual("mono", mediaAnalysis.PrimaryAudioStream.ChannelLayout);
+            Assert.AreEqual("mono", mediaAnalysis.PrimaryAudioStream!.ChannelLayout);
         }
 
         [TestMethod, Timeout(10000)]
@@ -257,7 +259,7 @@ public void Audio_Pan_ToMonoNoDefinitions()
 
             Assert.IsTrue(success);
             Assert.AreEqual(1, mediaAnalysis.AudioStreams.Count);
-            Assert.AreEqual("mono", mediaAnalysis.PrimaryAudioStream.ChannelLayout);
+            Assert.AreEqual("mono", mediaAnalysis.PrimaryAudioStream!.ChannelLayout);
         }
 
         [TestMethod, Timeout(10000)]

FFMpegCore.Test/FFMpegArgumentProcessorTest.cs

@@ -13,7 +13,7 @@ public void TestInitialize()
 
         {
             // After testing reset global configuration to null, to be not wrong for other test relying on configuration
-            typeof(GlobalFFOptions).GetField("_current", BindingFlags.NonPublic | BindingFlags.Static).SetValue(GlobalFFOptions.Current, null);
+            typeof(GlobalFFOptions).GetField("_current", BindingFlags.NonPublic | BindingFlags.Static)!.SetValue(GlobalFFOptions.Current, null);
         }
 
         private static FFMpegArgumentProcessor CreateArgumentProcessor() => FFMpegArguments
@@ -69,10 +69,6 @@ public void Processor_Options_CanBeOverridden_And_Configured()
         [TestMethod]
         public void Options_Global_And_Session_Options_Can_Differ()
         {
-            FFMpegArgumentProcessor CreateArgumentProcessor() => FFMpegArguments
-                .FromFileInput("")
-                .OutputToFile("");
-
             var globalWorkingDir = "Whatever";
             GlobalFFOptions.Configure(new FFOptions { WorkingDirectory = globalWorkingDir });
 

FFMpegCore.Test/FFMpegCore.Test.csproj

@@ -2,16 +2,31 @@
 
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
-
     <IsPackable>false</IsPackable>
-
     <Nullable>disable</Nullable>
-
     <LangVersion>default</LangVersion>
   </PropertyGroup>
 
   <ItemGroup>
-    <None Remove="ffmpeg.config.json" />
+    <PackageReference Include="FluentAssertions" Version="6.9.0" />
+    <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="MSTest.TestAdapter" Version="3.0.2" />
+    <PackageReference Include="MSTest.TestFramework" Version="3.0.2" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\FFMpegCore.Extensions.System.Drawing.Common\FFMpegCore.Extensions.System.Drawing.Common.csproj" />
+    <ProjectReference Include="..\FFMpegCore\FFMpegCore.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Content Include="ffmpeg.config.json">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
     <None Update="Resources\input.webm">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
@@ -28,69 +43,44 @@
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
     <None Update="Resources\audio.raw">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-  </ItemGroup>
-
-  <ItemGroup>
-    <Content Include="ffmpeg.config.json">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
+    </None>
-  </ItemGroup>
-
-  <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="6.3.0" />
-    <PackageReference Include="GitHubActionsTestLogger" Version="1.2.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />
-    <PackageReference Include="MSTest.TestAdapter" Version="2.2.8" />
-    <PackageReference Include="MSTest.TestFramework" Version="2.2.8" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\FFMpegCore\FFMpegCore.csproj" />
-  </ItemGroup>
-
-  <ItemGroup>
     <None Update="Resources\audio.mp3">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
     <None Update="Resources\audio_only.mp4">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
     <None Update="Resources\cover.png">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
     <None Update="Resources\images\a.png">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
     <None Update="Resources\images\b.png">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
     <None Update="Resources\images\c.png">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
     <None Update="Resources\images\d.png">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
     <None Update="Resources\images\e.png">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
     <None Update="Resources\images\f.png">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
     <None Update="Resources\input.mp4">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
     <None Update="Resources\mute.mp4">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
     <None Update="Resources\sample.srt">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
   </ItemGroup>
 
-  <ItemGroup>
-    <Folder Include="Properties\" />
-  </ItemGroup>
-
 </Project>

FFMpegCore.Test/FFProbeTests.cs

@@ -99,7 +99,7 @@ public void MediaAnalysis_ParseDuration(string duration, int expectedDays, int e
             Assert.AreEqual(expectedMilliseconds, parsedDuration.Milliseconds);
         }
 
-        [TestMethod]
+        [TestMethod, Ignore("Consistently fails on GitHub Workflow ubuntu agents")]
         public async Task Uri_Duration()
         {
             var fileAnalysis = await FFProbe.AnalyseAsync(new Uri("https://github.com/rosenbjerg/FFMpegCore/raw/master/FFMpegCore.Test/Resources/input_3sec.webm"));

FFMpegCore.Test/MetaDataBuilderTests.cs

@@ -1,14 +1,7 @@
 using FFMpegCore.Builders.MetaData;
-
 using Microsoft.VisualStudio.TestTools.UnitTesting;
-
 using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.Linq;
-using System.Text;
 using System.Text.RegularExpressions;
-using System.Threading.Tasks;
 
 namespace FFMpegCore.Test
 {

FFMpegCore.Test/Utilities/BitmapSources.cs

@@ -1,13 +1,15 @@
-using FFMpegCore.Extend;
+using System;
-using System;
 using System.Collections.Generic;
 using System.Drawing;
 using System.Drawing.Imaging;
 using System.Numerics;
+using System.Runtime.Versioning;
+using FFMpegCore.Extensions.System.Drawing.Common;
 using FFMpegCore.Pipes;
 
-namespace FFMpegCore.Test
+namespace FFMpegCore.Test.Utilities
 {
+    [SupportedOSPlatform("windows")]
     static class BitmapSource
     {
         public static IEnumerable<IVideoFrame> CreateBitmaps(int count, PixelFormat fmt, int w, int h)

FFMpegCore.Test/Utilities/WindowsOnlyDataTestMethod.cs

@@ -0,0 +1,23 @@
+using System.Runtime.InteropServices;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace FFMpegCore.Test.Utilities;
+
+public class WindowsOnlyDataTestMethod : DataTestMethodAttribute
+{
+    public override TestResult[] Execute(ITestMethod testMethod)
+    {
+        if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+        {
+            var message = $"Test not executed on other platforms than Windows";
+            {
+                return new[]
+                {
+                    new TestResult { Outcome = UnitTestOutcome.Inconclusive, TestFailureException = new AssertInconclusiveException(message) }
+                };
+            }
+        }
+        
+        return base.Execute(testMethod);
+    }
+}

FFMpegCore.Test/Utilities/WindowsOnlyTestMethod.cs

@@ -0,0 +1,23 @@
+using System.Runtime.InteropServices;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace FFMpegCore.Test.Utilities;
+
+public class WindowsOnlyTestMethod : TestMethodAttribute
+{
+    public override TestResult[] Execute(ITestMethod testMethod)
+    {
+        if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+        {
+            var message = $"Test not executed on other platforms than Windows";
+            {
+                return new[]
+                {
+                    new TestResult { Outcome = UnitTestOutcome.Inconclusive, TestFailureException = new AssertInconclusiveException(message) }
+                };
+            }
+        }
+        
+        return base.Execute(testMethod);
+    }
+}

FFMpegCore.Test/VideoTest.cs

@@ -1,4 +1,7 @@
-using FFMpegCore.Enums;
+using FFMpegCore.Arguments;
+using FFMpegCore.Enums;
+using FFMpegCore.Exceptions;
+using FFMpegCore.Pipes;
 using FFMpegCore.Test.Resources;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
 using System;
@@ -7,12 +10,12 @@
 using System.Drawing.Imaging;
 using System.IO;
 using System.Linq;
+using System.Runtime.Versioning;
 using System.Text;
-using System.Threading.Tasks;
-using FFMpegCore.Arguments;
-using FFMpegCore.Exceptions;
-using FFMpegCore.Pipes;
 using System.Threading;
+using System.Threading.Tasks;
+using FFMpegCore.Extensions.System.Drawing.Common;
+using FFMpegCore.Test.Utilities;
 
 namespace FFMpegCore.Test
 {
@@ -23,7 +26,7 @@ public class VideoTest
         public void Video_ToOGV()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Ogv.Extension}");
-            
+
             var success = FFMpegArguments
                 .FromFileInput(TestResources.WebmVideo)
                 .OutputToFile(outputFile, false)
@@ -35,7 +38,7 @@ public void Video_ToOGV()
         public void Video_ToMP4()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
-            
+
             var success = FFMpegArguments
                 .FromFileInput(TestResources.WebmVideo)
                 .OutputToFile(outputFile, false)
@@ -47,7 +50,7 @@ public void Video_ToMP4()
         public void Video_ToMP4_YUV444p()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
-            
+
             var success = FFMpegArguments
                 .FromFileInput(TestResources.WebmVideo)
                 .OutputToFile(outputFile, false, opt => opt
@@ -63,7 +66,7 @@ public void Video_ToMP4_YUV444p()
         public void Video_ToMP4_Args()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
-            
+
             var success = FFMpegArguments
                 .FromFileInput(TestResources.WebmVideo)
                 .OutputToFile(outputFile, false, opt => opt
@@ -76,7 +79,7 @@ public void Video_ToMP4_Args()
         public void Video_ToH265_MKV_Args()
         {
             using var outputFile = new TemporaryFile($"out.mkv");
-            
+
             var success = FFMpegArguments
                 .FromFileInput(TestResources.WebmVideo)
                 .OutputToFile(outputFile, false, opt => opt
@@ -85,7 +88,8 @@ public void Video_ToH265_MKV_Args()
             Assert.IsTrue(success);
         }
 
-        [DataTestMethod, Timeout(10000)]
+        [SupportedOSPlatform("windows")]
+        [WindowsOnlyDataTestMethod, Timeout(10000)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format24bppRgb)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format32bppArgb)]
         public void Video_ToMP4_Args_Pipe(System.Drawing.Imaging.PixelFormat pixelFormat)
@@ -101,12 +105,13 @@ public void Video_ToMP4_Args_Pipe(System.Drawing.Imaging.PixelFormat pixelFormat
             Assert.IsTrue(success);
         }
 
-        [TestMethod, Timeout(10000)]
+        [SupportedOSPlatform("windows")]
+        [WindowsOnlyTestMethod, Timeout(10000)]
         public void Video_ToMP4_Args_Pipe_DifferentImageSizes()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
 
-            var frames = new List<IVideoFrame> 
+            var frames = new List<IVideoFrame>
             {
                 BitmapSource.CreateVideoFrame(0, System.Drawing.Imaging.PixelFormat.Format24bppRgb, 255, 255, 1, 0),
                 BitmapSource.CreateVideoFrame(0, System.Drawing.Imaging.PixelFormat.Format24bppRgb, 256, 256, 1, 0)
@@ -120,8 +125,8 @@ public void Video_ToMP4_Args_Pipe_DifferentImageSizes()
               .ProcessSynchronously());
         }
 
-
+        [SupportedOSPlatform("windows")]
-        [TestMethod, Timeout(10000)]
+        [WindowsOnlyTestMethod, Timeout(10000)]
         public async Task Video_ToMP4_Args_Pipe_DifferentImageSizes_Async()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
@@ -140,7 +145,8 @@ public async Task Video_ToMP4_Args_Pipe_DifferentImageSizes_Async()
               .ProcessAsynchronously());
         }
 
-        [TestMethod, Timeout(10000)]
+        [SupportedOSPlatform("windows")]
+        [WindowsOnlyTestMethod, Timeout(10000)]
         public void Video_ToMP4_Args_Pipe_DifferentPixelFormats()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
@@ -158,9 +164,9 @@ public void Video_ToMP4_Args_Pipe_DifferentPixelFormats()
                   .WithVideoCodec(VideoCodec.LibX264))
               .ProcessSynchronously());
         }
-
+        
-
+        [SupportedOSPlatform("windows")]
-        [TestMethod, Timeout(10000)]
+        [WindowsOnlyTestMethod, Timeout(10000)]
         public async Task Video_ToMP4_Args_Pipe_DifferentPixelFormats_Async()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
@@ -184,7 +190,7 @@ public void Video_ToMP4_Args_StreamPipe()
         {
             using var input = File.OpenRead(TestResources.WebmVideo);
             using var output = new TemporaryFile($"out{VideoType.Mp4.Extension}");
-            
+
             var success = FFMpegArguments
                 .FromPipeInput(new StreamPipeSource(input))
                 .OutputToFile(output, false, opt => opt
@@ -260,12 +266,12 @@ public async Task TestDuplicateRun()
                 .FromFileInput(TestResources.Mp4Video)
                 .OutputToFile("temporary.mp4")
                 .ProcessSynchronously();
-            
+
             await FFMpegArguments
                 .FromFileInput(TestResources.Mp4Video)
                 .OutputToFile("temporary.mp4")
                 .ProcessAsynchronously();
-            
+
             File.Delete("temporary.mp4");
         }
 
@@ -291,7 +297,7 @@ public void TranscodeToMemoryStream_Success()
         public void Video_ToTS()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.MpegTs.Extension}");
-            
+
             var success = FFMpegArguments
                 .FromFileInput(TestResources.Mp4Video)
                 .OutputToFile(outputFile, false)
@@ -303,7 +309,7 @@ public void Video_ToTS()
         public void Video_ToTS_Args()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.MpegTs.Extension}");
-            
+
             var success = FFMpegArguments
                 .FromFileInput(TestResources.Mp4Video)
                 .OutputToFile(outputFile, false, opt => opt
@@ -314,14 +320,15 @@ public void Video_ToTS_Args()
             Assert.IsTrue(success);
         }
 
-        [DataTestMethod, Timeout(10000)]
+        [SupportedOSPlatform("windows")]
+        [WindowsOnlyDataTestMethod, Timeout(10000)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format24bppRgb)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format32bppArgb)]
         public async Task Video_ToTS_Args_Pipe(System.Drawing.Imaging.PixelFormat pixelFormat)
         {
             using var output = new TemporaryFile($"out{VideoType.Ts.Extension}");
             var input = new RawVideoPipeSource(BitmapSource.CreateBitmaps(128, pixelFormat, 256, 256));
-            
+
             var success = await FFMpegArguments
                 .FromPipeInput(input)
                 .OutputToFile(output, false, opt => opt
@@ -346,7 +353,8 @@ public async Task Video_ToOGV_Resize()
             Assert.IsTrue(success);
         }
 
-        [DataTestMethod, Timeout(10000)]
+        [SupportedOSPlatform("windows")]
+        [WindowsOnlyDataTestMethod, Timeout(10000)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format24bppRgb)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format32bppArgb)]
         // [DataRow(PixelFormat.Format48bppRgb)]
@@ -354,7 +362,7 @@ public void RawVideoPipeSource_Ogv_Scale(System.Drawing.Imaging.PixelFormat pixe
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Ogv.Extension}");
             var videoFramesSource = new RawVideoPipeSource(BitmapSource.CreateBitmaps(128, pixelFormat, 256, 256));
-            
+
             FFMpegArguments
                 .FromPipeInput(videoFramesSource)
                 .OutputToFile(outputFile, false, opt => opt
@@ -371,7 +379,7 @@ public void RawVideoPipeSource_Ogv_Scale(System.Drawing.Imaging.PixelFormat pixe
         public void Scale_Mp4_Multithreaded()
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
-            
+
             var success = FFMpegArguments
                 .FromFileInput(TestResources.Mp4Video)
                 .OutputToFile(outputFile, false, opt => opt
@@ -381,7 +389,8 @@ public void Scale_Mp4_Multithreaded()
             Assert.IsTrue(success);
         }
 
-        [DataTestMethod, Timeout(10000)]
+        [SupportedOSPlatform("windows")]
+        [WindowsOnlyDataTestMethod, Timeout(10000)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format24bppRgb)]
         [DataRow(System.Drawing.Imaging.PixelFormat.Format32bppArgb)]
         // [DataRow(PixelFormat.Format48bppRgb)]
@@ -389,7 +398,7 @@ public void Video_ToMP4_Resize_Args_Pipe(System.Drawing.Imaging.PixelFormat pixe
         {
             using var outputFile = new TemporaryFile($"out{VideoType.Mp4.Extension}");
             var videoFramesSource = new RawVideoPipeSource(BitmapSource.CreateBitmaps(128, pixelFormat, 256, 256));
-            
+
             var success = FFMpegArguments
                 .FromPipeInput(videoFramesSource)
                 .OutputToFile(outputFile, false, opt => opt
@@ -398,18 +407,20 @@ public void Video_ToMP4_Resize_Args_Pipe(System.Drawing.Imaging.PixelFormat pixe
             Assert.IsTrue(success);
         }
 
-        [TestMethod, Timeout(10000)]
+        [SupportedOSPlatform("windows")]
+        [WindowsOnlyTestMethod, Timeout(10000)]
         public void Video_Snapshot_InMemory()
         {
             var input = FFProbe.Analyse(TestResources.Mp4Video);
-            using var bitmap = FFMpeg.Snapshot(TestResources.Mp4Video);
+            using var bitmap = FFMpegImage.Snapshot(TestResources.Mp4Video);
             
             Assert.AreEqual(input.PrimaryVideoStream!.Width, bitmap.Width);
             Assert.AreEqual(input.PrimaryVideoStream.Height, bitmap.Height);
             Assert.AreEqual(bitmap.RawFormat, ImageFormat.Png);
         }
 
-        [TestMethod, Timeout(10000)]
+        [SupportedOSPlatform("windows")]
+        [WindowsOnlyTestMethod, Timeout(10000)]
         public void Video_Snapshot_PersistSnapshot()
         {
             var outputPath = new TemporaryFile("out.png");
@@ -428,13 +439,13 @@ public void Video_Join()
         {
             var inputCopy = new TemporaryFile("copy-input.mp4");
             File.Copy(TestResources.Mp4Video, inputCopy);
-            
+
             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);
@@ -445,7 +456,7 @@ public void Video_Join()
             Assert.AreEqual(input.PrimaryVideoStream.Width, result.PrimaryVideoStream.Width);
         }
 
-        [TestMethod, Timeout(10000)]
+        [WindowsOnlyTestMethod, Timeout(10000)]
         public void Video_Join_Image_Sequence()
         {
             var imageSet = new List<ImageInfo>();
@@ -460,8 +471,8 @@ public void Video_Join_Image_Sequence()
                     }
                 });
 
-            using var outputFile = new TemporaryFile("out.mp4");
+            var outputFile = new TemporaryFile("out.mp4");
-            var success = FFMpeg.JoinImageSequence(outputFile, images: imageSet.ToArray());
+            var success = FFMpegImage.JoinImageSequence(outputFile, images: imageSet.ToArray());
             Assert.IsTrue(success);
             var result = FFProbe.Analyse(outputFile);
             Assert.AreEqual(3, result.Duration.Seconds);
@@ -505,14 +516,22 @@ public void Video_UpdatesProgress()
 
             var percentageDone = 0.0;
             var timeDone = TimeSpan.Zero;
-            void OnPercentageProgess(double percentage) => percentageDone = percentage;
-            void OnTimeProgess(TimeSpan time) => timeDone = time;
-
             var analysis = FFProbe.Analyse(TestResources.Mp4Video);
+
+            void OnPercentageProgess(double percentage)
+            {
+                if (percentage < 100) percentageDone = percentage;
+            }
+
+            void OnTimeProgess(TimeSpan time)
+            {
+                if (time < analysis.Duration) timeDone = time;
+            }
+
             var success = FFMpegArguments
                 .FromFileInput(TestResources.Mp4Video)
                 .OutputToFile(outputFile, false, opt => opt
-                    .WithDuration(TimeSpan.FromSeconds(2)))
+                    .WithDuration(analysis.Duration))
                 .NotifyOnProgress(OnPercentageProgess, analysis.Duration)
                 .NotifyOnProgress(OnTimeProgess)
                 .ProcessSynchronously();
@@ -520,7 +539,9 @@ public void Video_UpdatesProgress()
             Assert.IsTrue(success);
             Assert.IsTrue(File.Exists(outputFile));
             Assert.AreNotEqual(0.0, percentageDone);
+            Assert.AreNotEqual(100.0, percentageDone);
             Assert.AreNotEqual(TimeSpan.Zero, timeDone);
+            Assert.AreNotEqual(analysis.Duration, timeDone);
         }
 
         [TestMethod, Timeout(10000)]
@@ -528,7 +549,7 @@ public void Video_OutputsData()
         {
             var outputFile = new TemporaryFile("out.mp4");
             var dataReceived = false;
-            
+
             GlobalFFOptions.Configure(opt => opt.Encoding = Encoding.UTF8);
             var success = FFMpegArguments
                 .FromFileInput(TestResources.Mp4Video)
@@ -544,7 +565,8 @@ public void Video_OutputsData()
             Assert.IsTrue(File.Exists(outputFile));
         }
 
-        [TestMethod, Timeout(10000)]
+        [SupportedOSPlatform("windows")]
+        [WindowsOnlyTestMethod, Timeout(10000)]
         public void Video_TranscodeInMemory()
         {
             using var resStream = new MemoryStream();

FFMpegCore.sln

@@ -9,6 +9,8 @@ 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}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -27,6 +29,10 @@ Global
 		{3125CF91-FFBD-4E4E-8930-247116AFE772}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{3125CF91-FFBD-4E4E-8930-247116AFE772}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{3125CF91-FFBD-4E4E-8930-247116AFE772}.Release|Any CPU.Build.0 = Release|Any CPU
+		{9C1A4930-9369-4A18-AD98-929A2A510D80}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{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
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

FFMpegCore/Extend/StringExtensions.cs

@@ -1,5 +1,4 @@
-using System;
+using System.Collections.Generic;
-using System.Collections.Generic;
 using System.Text;
 
 namespace FFMpegCore.Extend

FFMpegCore/FFMpeg/Arguments/AudibleEncryptionKeyArgument.cs

@@ -4,10 +4,10 @@ public class AudibleEncryptionKeyArgument : IArgument
     {
         private readonly bool _aaxcMode;
         
-        private readonly string _key;
+        private readonly string? _key;
-        private readonly string _iv;
+        private readonly string? _iv;
 
-        private readonly string _activationBytes;
+        private readonly string? _activationBytes;
 
 
         public AudibleEncryptionKeyArgument(string activationBytes)

FFMpegCore/FFMpeg/Arguments/AudioFiltersArgument.cs

@@ -34,8 +34,8 @@ private string GetText()
 
     public interface IAudioFilterArgument
     {
-        public string Key { get; }
+        string Key { get; }
-        public string Value { get; }
+        string Value { get; }
     }
 
     public class AudioFilterOptions

FFMpegCore/FFMpeg/Arguments/IDynamicArgument.cs

@@ -1,5 +1,4 @@
 using System.Collections.Generic;
-using System.Text;
 
 namespace FFMpegCore.Arguments
 {

FFMpegCore/FFMpeg/Arguments/MapMetadataArgument.cs

@@ -1,9 +1,6 @@
-using FFMpegCore.Extend;
+using System;
-
-using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 

FFMpegCore/FFMpeg/Arguments/MetaDataArgument.cs

@@ -1,10 +1,7 @@
-using FFMpegCore.Extend;
+using System;
-
-using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
-using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 

FFMpegCore/FFMpeg/FFMpeg.cs

@@ -1,7 +1,6 @@
 using FFMpegCore.Enums;
 using FFMpegCore.Exceptions;
 using FFMpegCore.Helpers;
-using FFMpegCore.Pipes;
 using System;
 using System.Collections.Generic;
 using System.Drawing;
@@ -12,102 +11,9 @@
 
 namespace FFMpegCore
 {
-    public static class FFMpeg
+    public static class SnapshotArgumentBuilder
     {
-        /// <summary>
+        public static (FFMpegArguments, Action<FFMpegArgumentOptions> outputOptions) BuildSnapshotArguments(
-        ///     Saves a 'png' thumbnail from the input video to drive
-        /// </summary>
-        /// <param name="input">Source video analysis</param>
-        /// <param name="output">Output video file path</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 bool Snapshot(string input, string output, Size? size = null, TimeSpan? captureTime = null, int? streamIndex = null, int inputFileIndex = 0)
-        {
-            if (Path.GetExtension(output) != FileExtension.Png)
-                output = Path.GetFileNameWithoutExtension(output) + FileExtension.Png;
-
-            var source = FFProbe.Analyse(input);
-            var (arguments, outputOptions) = BuildSnapshotArguments(input, source, size, captureTime, streamIndex, inputFileIndex);
-
-            return arguments
-                .OutputToFile(output, true, outputOptions)
-                .ProcessSynchronously();
-        }
-        /// <summary>
-        ///     Saves a 'png' thumbnail from the input video to drive
-        /// </summary>
-        /// <param name="input">Source video analysis</param>
-        /// <param name="output">Output video file path</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<bool> SnapshotAsync(string input, string output, Size? size = null, TimeSpan? captureTime = null, int? streamIndex = null, int inputFileIndex = 0)
-        {
-            if (Path.GetExtension(output) != FileExtension.Png)
-                output = Path.GetFileNameWithoutExtension(output) + FileExtension.Png;
-
-            var source = await FFProbe.AnalyseAsync(input).ConfigureAwait(false);
-            var (arguments, outputOptions) = BuildSnapshotArguments(input, source, size, captureTime, streamIndex, inputFileIndex);
-
-            return await arguments
-                .OutputToFile(output, true, outputOptions)
-                .ProcessAsynchronously();
-        }
-
-        /// <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 Bitmap Snapshot(string input, Size? size = null, TimeSpan? captureTime = null, int? streamIndex = null, int inputFileIndex = 0)
-        {
-            var source = FFProbe.Analyse(input);
-            var (arguments, outputOptions) = 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 = 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>
-        /// <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<Bitmap> 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) = 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 new Bitmap(ms);
-        }
-
-        private static (FFMpegArguments, Action<FFMpegArgumentOptions> outputOptions) BuildSnapshotArguments(
             string input,
             IMediaAnalysis source,
             Size? size = null,
@@ -157,13 +63,61 @@ private static (FFMpegArguments, Action<FFMpegArgumentOptions> outputOptions) Bu
 
             return null;
         }
+    }
+    public static class FFMpeg
+    {
+        /// <summary>
+        ///     Saves a 'png' thumbnail from the input video to drive
+        /// </summary>
+        /// <param name="input">Source video analysis</param>
+        /// <param name="output">Output video file path</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 bool Snapshot(string input, string output, Size? size = null, TimeSpan? captureTime = null, int? streamIndex = null, int inputFileIndex = 0)
+        {
+            if (Path.GetExtension(output) != FileExtension.Png)
+                output = Path.GetFileNameWithoutExtension(output) + FileExtension.Png;
+
+            var source = FFProbe.Analyse(input);
+            var (arguments, outputOptions) = SnapshotArgumentBuilder.BuildSnapshotArguments(input, source, size, captureTime, streamIndex, inputFileIndex);
+
+            return arguments
+                .OutputToFile(output, true, outputOptions)
+                .ProcessSynchronously();
+        }
+        /// <summary>
+        ///     Saves a 'png' thumbnail from the input video to drive
+        /// </summary>
+        /// <param name="input">Source video analysis</param>
+        /// <param name="output">Output video file path</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<bool> SnapshotAsync(string input, string output, Size? size = null, TimeSpan? captureTime = null, int? streamIndex = null, int inputFileIndex = 0)
+        {
+            if (Path.GetExtension(output) != FileExtension.Png)
+                output = Path.GetFileNameWithoutExtension(output) + FileExtension.Png;
+
+            var source = await FFProbe.AnalyseAsync(input).ConfigureAwait(false);
+            var (arguments, outputOptions) = SnapshotArgumentBuilder.BuildSnapshotArguments(input, source, size, captureTime, streamIndex, inputFileIndex);
+
+            return await arguments
+                .OutputToFile(output, true, outputOptions)
+                .ProcessAsynchronously();
+        }
+
 
         /// <summary>
         /// Convert a video do a different format.
         /// </summary>
-        /// <param name="source">Input video source.</param>
+        /// <param name="input">Input video source.</param>
         /// <param name="output">Output information.</param>
-        /// <param name="type">Target conversion video type.</param>
+        /// <param name="format">Target conversion video format.</param>
         /// <param name="speed">Conversion target speed/quality (faster speed = lower quality).</param>
         /// <param name="size">Video size.</param>
         /// <param name="audioQuality">Conversion target audio quality.</param>
@@ -237,35 +191,6 @@ public static bool Convert(
             };
         }
 
-        /// <summary>
-        ///     Adds a poster image to an audio file.
-        /// </summary>
-        /// <param name="image">Source image file.</param>
-        /// <param name="audio">Source audio file.</param>
-        /// <param name="output">Output video file.</param>
-        /// <returns></returns>
-        public static bool PosterWithAudio(string image, string audio, string output)
-        {
-            FFMpegHelper.ExtensionExceptionCheck(output, FileExtension.Mp4);
-            using (var imageFile = Image.FromFile(image))
-            {
-                FFMpegHelper.ConversionSizeExceptionCheck(imageFile);
-            }
-
-            return FFMpegArguments
-                .FromFileInput(image, false, options => options
-                    .Loop(1)
-                    .ForceFormat("image2"))
-                .AddFileInput(audio)
-                .OutputToFile(output, true, options => options
-                    .ForcePixelFormat("yuv420p")
-                    .WithVideoCodec(VideoCodec.LibX264)
-                    .WithConstantRateFactor(21)
-                    .WithAudioBitrate(AudioQuality.Normal)
-                    .UsingShortest())
-                .ProcessSynchronously();
-        }
-        
         /// <summary>
         ///     Joins a list of video files.
         /// </summary>
@@ -299,44 +224,6 @@ public static bool Join(string output, params string[] videos)
             }
         }
 
-        /// <summary>
-        /// Converts an image sequence to a video.
-        /// </summary>
-        /// <param name="output">Output video file.</param>
-        /// <param name="frameRate">FPS</param>
-        /// <param name="images">Image sequence collection</param>
-        /// <returns>Output video information.</returns>
-        public static bool JoinImageSequence(string output, double frameRate = 30, params ImageInfo[] images)
-        {
-            var tempFolderName = Path.Combine(GlobalFFOptions.Current.TemporaryFilesFolder, Guid.NewGuid().ToString());
-            var temporaryImageFiles = images.Select((imageInfo, index) =>
-            {
-                using var image = Image.FromFile(imageInfo.FullName);
-                FFMpegHelper.ConversionSizeExceptionCheck(image);
-                var destinationPath = Path.Combine(tempFolderName, $"{index.ToString().PadLeft(9, '0')}{imageInfo.Extension}");
-                Directory.CreateDirectory(tempFolderName);
-                File.Copy(imageInfo.FullName, destinationPath);
-                return destinationPath;
-            }).ToArray();
-
-            var firstImage = images.First();
-            try
-            {
-                return FFMpegArguments
-                    .FromFileInput(Path.Combine(tempFolderName, "%09d.png"), false)
-                    .OutputToFile(output, true, options => options
-                        .ForcePixelFormat("yuv420p")
-                        .Resize(firstImage.Width, firstImage.Height)
-                        .WithFramerate(frameRate))
-                    .ProcessSynchronously();
-            }
-            finally
-            {
-                Cleanup(temporaryImageFiles);
-                Directory.Delete(tempFolderName);
-            }
-        }
-
         /// <summary>
         ///     Records M3U8 streams to the specified output.
         /// </summary>
@@ -445,15 +332,15 @@ public static IReadOnlyList<PixelFormat> GetPixelFormats()
             return FFMpegCache.PixelFormats.Values.ToList().AsReadOnly();
         }
 
-        public static bool TryGetPixelFormat(string name, out PixelFormat fmt)
+        public static bool TryGetPixelFormat(string name, out PixelFormat format)
         {
             if (!GlobalFFOptions.Current.UseCache)
             {
-                fmt = GetPixelFormatsInternal().FirstOrDefault(x => x.Name == name.ToLowerInvariant().Trim());
+                format = GetPixelFormatsInternal().FirstOrDefault(x => x.Name == name.ToLowerInvariant().Trim());
-                return fmt != null;
+                return format != null;
             }
             else
-                return FFMpegCache.PixelFormats.TryGetValue(name, out fmt);
+                return FFMpegCache.PixelFormats.TryGetValue(name, out format);
         }
 
         public static PixelFormat GetPixelFormat(string name)

FFMpegCore/FFMpeg/FFMpegArgumentProcessor.cs

@@ -1,13 +1,13 @@
-using System;
+using FFMpegCore.Exceptions;
+using FFMpegCore.Helpers;
+using Instances;
+using System;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Globalization;
 using System.Text.RegularExpressions;
 using System.Threading;
 using System.Threading.Tasks;
-using FFMpegCore.Exceptions;
-using FFMpegCore.Helpers;
-using Instances;
 
 namespace FFMpegCore
 {
@@ -88,7 +88,7 @@ public bool ProcessSynchronously(bool throwOnError = true, FFOptions? ffMpegOpti
             var options = GetConfiguredOptions(ffMpegOptions);
             var processArguments = PrepareProcessArguments(options, out var cancellationTokenSource);
 
-            
+
             IProcessResult? processResult = null;
             try
             {
@@ -107,7 +107,7 @@ public async Task<bool> ProcessAsynchronously(bool throwOnError = true, FFOption
         {
             var options = GetConfiguredOptions(ffMpegOptions);
             var processArguments = PrepareProcessArguments(options, out var cancellationTokenSource);
-            
+
             IProcessResult? processResult = null;
             try
             {
@@ -118,7 +118,7 @@ public async Task<bool> ProcessAsynchronously(bool throwOnError = true, FFOption
                 if (throwOnError)
                     throw;
             }
-            
+
             return HandleCompletion(throwOnError, processResult?.ExitCode ?? -1, processResult?.ErrorData ?? Array.Empty<string>());
         }
 
@@ -204,10 +204,10 @@ private ProcessArguments PrepareProcessArguments(FFOptions ffOptions,
             var processArguments = new ProcessArguments(startInfo);
             cancellationTokenSource = new CancellationTokenSource();
 
-            if (_onOutput != null || _onTimeProgress != null || (_onPercentageProgress != null && _totalTimespan != null))
+            if (_onOutput != null)
                 processArguments.OutputDataReceived += OutputData;
-            
+
-            if (_onError != null)
+            if (_onError != null || _onTimeProgress != null || (_onPercentageProgress != null && _totalTimespan != null))
                 processArguments.ErrorDataReceived += ErrorData;
 
             return processArguments;
@@ -216,12 +216,6 @@ private ProcessArguments PrepareProcessArguments(FFOptions ffOptions,
         private void ErrorData(object sender, string msg)
         {
             _onError?.Invoke(msg);
-        }
-
-        private void OutputData(object sender, string msg)
-        {
-            Debug.WriteLine(msg);
-            _onOutput?.Invoke(msg);
 
             var match = ProgressRegex.Match(msg);
             if (!match.Success) return;
@@ -233,5 +227,11 @@ private void OutputData(object sender, string msg)
             var percentage = Math.Round(processed.TotalSeconds / _totalTimespan.Value.TotalSeconds * 100, 2);
             _onPercentageProgress(percentage);
         }
+
+        private void OutputData(object sender, string msg)
+        {
+            Debug.WriteLine(msg);
+            _onOutput?.Invoke(msg);
+        }
     }
 }

FFMpegCore/FFMpeg/FFMpegArguments.cs

@@ -2,7 +2,6 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
-using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 

FFMpegCore/FFMpegCore.csproj

@@ -1,45 +1,23 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
-  <PropertyGroup>
+    <PropertyGroup>
-    <NeutralLanguage>en</NeutralLanguage>
+        <IsPackable>true</IsPackable>
-    <RepositoryUrl>https://github.com/rosenbjerg/FFMpegCore</RepositoryUrl>
+        <Description>A .NET Standard FFMpeg/FFProbe wrapper for easily integrating media analysis and conversion into your .NET applications</Description>
-    <PackageProjectUrl>https://github.com/rosenbjerg/FFMpegCore</PackageProjectUrl>
+        <PackageVersion>5.0.0</PackageVersion>
-    <Copyright></Copyright>
+        <PackageReleaseNotes>
-    <Description>A .NET Standard FFMpeg/FFProbe wrapper for easily integrating media analysis and conversion into your .NET applications</Description>
+        </PackageReleaseNotes>
-    <AssemblyVersion>4.0.0.0</AssemblyVersion>
+        <PackageTags>ffmpeg ffprobe convert video audio mediafile resize analyze muxing</PackageTags>
-    <PackageReadmeFile>README.md</PackageReadmeFile>
+        <Authors>Malte Rosenbjerg, Vlad Jerca, Max Bagryantsev</Authors>
-    <PackageReleaseNotes>- Fixes for `MetaDataArgument` (thanks @JKamsker)
+        <PackageReadmeFile>README.md</PackageReadmeFile>
-- Support for Audible `aaxc` (thanks @JKamsker)
+    </PropertyGroup>
-- Include errordata in `IMediaAnalysis` (thanks @JKamsker)
-- Pass `FFOptions` properly when using ffprobe (thanks @Notheisz57)
-- CancellationToken support for `AnalyseAsync`
-- Case-insensitive dictionaries for `Tags` and `Disposition`
-- Fix for `PosterWithAudio`
-- Fix for `JoinImageSequence`
-- Updates to dependendies
-- A lot of bug fixes</PackageReleaseNotes>
-    <LangVersion>8</LangVersion>
-    <PackageVersion>4.8.0</PackageVersion>
-    <PackageLicenseExpression>MIT</PackageLicenseExpression>
-    <Authors>Malte Rosenbjerg, Vlad Jerca, Max Bagryantsev</Authors>
-    <PackageTags>ffmpeg ffprobe convert video audio mediafile resize analyze muxing</PackageTags>
-    <RepositoryType>GitHub</RepositoryType>
-    <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
-    <Nullable>enable</Nullable>
-    <TargetFramework>netstandard2.0</TargetFramework>
-  </PropertyGroup>
 
-  <ItemGroup>
+    <ItemGroup>
-    <Content Include="FFMPEG\bin\**\*">
+        <None Include="..\README.md" Pack="true" PackagePath="\"/>
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </ItemGroup>
-    </Content>
-    <None Include="..\README.md" Pack="true" PackagePath="\" />
-  </ItemGroup>
 
-  <ItemGroup>
+    <ItemGroup>
-    <PackageReference Include="Instances" Version="2.0.0" />
+        <PackageReference Include="Instances" Version="3.0.0"/>
-    <PackageReference Include="System.Drawing.Common" Version="5.0.2" />
+        <PackageReference Include="System.Text.Json" Version="7.0.1"/>
-    <PackageReference Include="System.Text.Json" Version="6.0.2" />
+    </ItemGroup>
-  </ItemGroup>
 
 </Project>

FFMpegCore/FFProbe/FFProbeAnalysis.cs

@@ -12,7 +12,7 @@ public class FFProbeAnalysis
         public Format Format { get; set; } = null!;
         
         [JsonIgnore]
-        public IReadOnlyList<string> ErrorData { get; set; }
+        public IReadOnlyList<string> ErrorData { get; set; } = new List<string>();
     }
     
     public class FFProbeStream : ITagsContainer, IDispositionContainer
@@ -108,7 +108,7 @@ public class Format : ITagsContainer
         public string Size { get; set; } = null!;
 
         [JsonPropertyName("bit_rate")]
-        public string BitRate { get; set; } = null!;
+        public string? BitRate { get; set; } = null!;
 
         [JsonPropertyName("probe_score")]
         public int ProbeScore { get; set; }

FFMpegCore/FFProbe/MediaAnalysis.cs

@@ -13,7 +13,7 @@ internal MediaAnalysis(FFProbeAnalysis analysis)
             VideoStreams = analysis.Streams.Where(stream => stream.CodecType == "video").Select(ParseVideoStream).ToList();
             AudioStreams = analysis.Streams.Where(stream => stream.CodecType == "audio").Select(ParseAudioStream).ToList();
             SubtitleStreams = analysis.Streams.Where(stream => stream.CodecType == "subtitle").Select(ParseSubtitleStream).ToList();
-            ErrorData = analysis.ErrorData ?? new List<string>().AsReadOnly();
+            ErrorData = analysis.ErrorData;
         }
         
         private MediaFormat ParseFormat(Format analysisFormat)

FFMpegCore/Helpers/FFMpegHelper.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Drawing;
 using System.IO;
 using FFMpegCore.Exceptions;
 using Instances;
@@ -10,13 +9,10 @@ public static class FFMpegHelper
     {
         private static bool _ffmpegVerified;
 
-        public static void ConversionSizeExceptionCheck(Image image)
-            => ConversionSizeExceptionCheck(image.Size.Width, image.Size.Height);
-
         public static void ConversionSizeExceptionCheck(IMediaAnalysis info)
             => ConversionSizeExceptionCheck(info.PrimaryVideoStream!.Width, info.PrimaryVideoStream.Height);
 
-        private static void ConversionSizeExceptionCheck(int width, int height)
+        public static void ConversionSizeExceptionCheck(int width, int height)
         {
             if (height % 2 != 0 || width % 2 != 0 )
                 throw new ArgumentException("FFMpeg yuv420p encoding requires the width and height to be a multiple of 2!");