MKV output
The MKV format can be used as an alternative to the MP4 format, which has more options for supporting video and audio codecs.
Use MKVSinkSettings class to set the parameters.
Block info
Name: MKVSinkBlock.
| Pin direction | Media type | Pins count |
|---|---|---|
| Input audio | audio/mpeg | one or more |
| audio/x-ac3 | ||
| audio/x-eac3 | ||
| audio/x-dts | ||
| audio/x-vorbis | ||
| audio/x-flac | ||
| audio/x-opus | ||
| audio/x-speex | ||
| U8, S16BE, S16LE | ||
| S24BE, S24LE | ||
| S32BE, S32LE | ||
| F32LE, F64LE | ||
| audio/x-wma | ||
| audio/x-alaw | ||
| audio/x-mulaw | ||
| audio/x-adpcm | ||
| audio/G722 | ||
| audio/G726 | ||
| Input video | YUY2, I420, YV12, UYVY, AYUV, GRAY8, BGR, RGB | one or more |
| video/mpeg | ||
| video/x-h264 | ||
| video/x-h265 | ||
| video/x-divx | ||
| video/x-huffyuv | ||
| video/x-dv | ||
| video/x-h263 | ||
| video/x-msmpeg | ||
| image/jpeg: | ||
| video/x-theora | ||
| video/x-dirac | ||
| video/x-vp8 | ||
| video/x-vp9 | ||
| video/x-prores | ||
| video/x-wmv | ||
| video/x-av1 | ||
| video/x-ffv | ||
| Input subtitle | text/utf8 | one or more |
| subtitle/x-kate | ||
| application/x-ssa | ||
| application/x-ass | ||
| application/x-usf | ||
| subpicture/x-dvd |
The sample pipeline
UniversalSourceBlock:VideoOutput → H264EncoderBlock → MKVSinkBlock:VideoInput
UniversalSourceBlock:AudioOutput → AACEncoderBlock → MKVSinkBlock:AudioInput
Sample code
var pipeline = new MediaBlocksPipeline(false);
var filename = "test.mp4";
var fileSource = new UniversalSourceBlock(await UniversalSourceSettings.CreateAsync(new Uri(filename)));
var aacEncoderBlock = new AACEncoderBlock(new MFAACEncoderSettings() { Bitrate = 192 });
pipeline.Connect(fileSource.AudioOutput, aacEncoderBlock.Input);
var h264EncoderBlock = new H264EncoderBlock(new MFH264EncoderSettings());
pipeline.Connect(fileSource.VideoOutput, h264EncoderBlock.Input);
var mkvSinkBlock = new MKVSinkBlock(new MKVSinkSettings(@"output.mkv"));
pipeline.Connect(h264EncoderBlock.Output, mkvSinkBlock.CreateNewInput(MediaBlockPadMediaType.Video));
pipeline.Connect(aacEncoderBlock.Output, mkvSinkBlock.CreateNewInput(MediaBlockPadMediaType.Audio));
await pipeline.StartAsync();
Platforms
Windows, macOS, Linux, iOS, Android.