README.md

MpegTS.Net

PCL that can decode MpegTS header info and extract embedded streams for decode by a codec.

Basic flow of calling code:

Open some stream (file, socket, whatever).

Read 188 bytes, then pass the chunk of data to the extractor.

some simplified pseudo code:

public class Extractor
{
   
    public void Run()
    {
        var finfo = new System.IO.FileInfo("c:\movie.mpeg");
        var fs = finfo.OpenRead();
        var buffEx = new BufferExtractor();

        while (fs.CanRead && buffEx.SampleCount == 0)
        {
            if (fs.Length - fs.Position < 188)
            {
                eof = true;
                break;//we're @ EOF
            }

            //we need a new buffer every loop!
            buff = new byte[188];
            bytes = await fs.ReadAsync(buff, 0, buff.Length)
                            .ConfigureAwait(false);

            //push the raw data to our custom extractor
            if (!buffEx.AddRaw(buff))
            {
                Log.Debug("ExtractorActivity,   ", " ----------bad TS packet!");

                //find next sync byte and try again
                fs.Position -= buff.Length
                              - buff.ToList().IndexOf(MpegTS.TsPacket.SyncByte);
            }
        }
        
        //buffex must have a stream sample ready
        //get the raw video stream, stripped of Mpeg TS headers
        var sample = buffEx.DequeueNextSample();
        
        //pass buffer to the codec
        codec.Decode(sample.Buffer);
        
    }        
}