Add raw audio test

FFMpegCore.Test/AudioTest.cs

@@ -3,6 +3,8 @@
 using FFMpegCore.Test.Resources;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
 using System.IO;
+using System.Threading.Tasks;
+using FFMpegCore.Pipes;
 
 namespace FFMpegCore.Test
 {
@@ -40,6 +42,22 @@ public void Audio_Save()
                 if (File.Exists(output)) File.Delete(output);
             }
         }
+        [TestMethod]
+        public async Task Audio_FromRaw()
+        {
+            await using var file = File.Open(VideoLibrary.LocalAudioRaw.FullName, FileMode.Open);
+            var memoryStream = new MemoryStream();
+            await FFMpegArguments
+                .FromPipeInput(new StreamPipeSource(file), options => options.ForceFormat("s16le"))
+                .OutputToPipe(new StreamPipeSink(memoryStream), options =>
+                {
+                    options.WithAudioSamplingRate(48000);
+                    options.WithAudioCodec("libopus");
+                    options.WithCustomArgument("-ac 2");
+                    options.ForceFormat("opus");
+                })
+                .ProcessAsynchronously();
+        }
         
         [TestMethod]
         public void Audio_Add()

FFMpegCore.Test/FFMpegCore.Test.csproj

@@ -27,6 +27,9 @@
     <None Update="Resources\input_video_only_3sec.mp4">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
+    <None Update="Resources\audio.raw">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
   </ItemGroup>
 
   <ItemGroup>

FFMpegCore.Test/Resources/VideoLibrary.cs

@@ -21,6 +21,7 @@ public static class VideoLibrary
         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");