# ASF/WMV/WMA output

Media Blocks SDK .Net

ASF (Advanced Systems Format): A Microsoft digital container format used to store multimedia data, designed to be platform-independent and to support scalable media types like audio and video.

Use the ASFSinkSettings class to set the parameters.

# Block info

Name: AVISinkBlock.

Pin direction	Media type	Pins count
Input audio	audio/x-raw	one or more
	audio/mpeg
	audio/x-ac3
	audio/x-alaw
	audio/x-mulaw
	audio/x-wma
Input video	video/x-raw	one or more
	image/jpeg
	video/x-divx
	video/x-msmpeg
	video/mpeg
	video/x-h263
	video/x-h264
	video/x-dv
	video/x-huffyuv
	video/x-wmv
	video/x-jpc
	video/x-vp8
	image/png

# The sample pipeline

graph LR;
    UniversalSourceBlock-->WMVEncoderBlock;
    UniversalSourceBlock-->WMAEncoderBlock;
    WMVEncoderBlock-->ASFSinkBlock;
    WMAEncoderBlock-->ASFSinkBlock;

# Sample code

var pipeline = new MediaBlocksPipeline();

var filename = "test.mp4";
var fileSource = new UniversalSourceBlock(await UniversalSourceSettings.CreateAsync(new Uri(filename)));

var audioEncoderBlock = new WMAEncoderBlock(new WMAEncoderSettings());
pipeline.Connect(fileSource.AudioOutput, audioEncoderBlock.Input);

var videoEncoderBlock = new WMVEncoderBlock(new WMVEncoderSettings());
pipeline.Connect(fileSource.VideoOutput, videoEncoderBlock.Input);

var sinkBlock = new ASFSinkBlock(new ASFSinkSettings(@"output.wmv"));
pipeline.Connect(audioEncoderBlock.Output, sinkBlock.CreateNewInput(MediaBlockPadMediaType.Audio));
pipeline.Connect(videoEncoderBlock.Output, sinkBlock.CreateNewInput(MediaBlockPadMediaType.Video));

await pipeline.StartAsync();

# Platforms

Windows, macOS, Linux, iOS, Android.