public DemuxPacketData(DemuxPacket demuxPacket, bool isVideo)
{
byte[] buffer = new byte[demuxPacket.Size];
Marshal.Copy(demuxPacket.Data, buffer, 0, buffer.Length);
Buffer = buffer;
Size = buffer.Length;
if (isVideo)
{
// Set video timestamps
Start = demuxPacket.Dts.ToDS();
Stop = demuxPacket.Duration.ToDS();
}
}
public override DemuxPacketWrapper Read()
{
lock (_syncObj)
{
IntPtr demuxPacketPtr = Functions.DemuxRead();
// If there is no more data, DemuxRead returns 0
if (demuxPacketPtr == IntPtr.Zero)
{
return(new DemuxPacketWrapper()); // EOS indicator
}
DemuxPacket demuxPacket = Marshal.PtrToStructure <DemuxPacket>(demuxPacketPtr);
if (demuxPacket.StreamId == Constants.DMX_SPECIALID_STREAMCHANGE || demuxPacket.StreamId == Constants.DMX_SPECIALID_STREAMINFO)
{
UpdateStreams();
}
return(new DemuxPacketWrapper(demuxPacket, demuxPacketPtr));
}
}
public override void Write(DemuxPacket packet)
{
throw new NotImplementedException();
}
//This is called by a separate thread repeatedly to fill each tracks packet cache
public override HRESULT ProcessDemuxPackets()
{
// Avoid streaming downloads in pause mode
if (PauseDemux)
{
return(S_OK);
}
using (var demuxPacketWrapper = _stream.Read())
{
// EOS
if (demuxPacketWrapper.IsEOS)
{
return(S_FALSE);
}
DemuxPacket demuxPacket = demuxPacketWrapper.DemuxPacket;
// Stream changes
if (demuxPacket.StreamId == Constants.DMX_SPECIALID_STREAMCHANGE ||
demuxPacket.StreamId == Constants.DMX_SPECIALID_STREAMINFO)
{
var action = StreamChanged;
if (action != null)
{
action();
}
}
if (demuxPacket.Data == IntPtr.Zero)
{
return(S_OK);
}
//Create the packet and add the data
var isVideo = demuxPacket.StreamId == _stream.VideoStream.StreamId;
PacketData packet = new DemuxPacketData(demuxPacket, isVideo);
DemuxTrack track = m_Tracks.FirstOrDefault(t => t.Type == (isVideo ? DemuxTrack.TrackType.Video : DemuxTrack.TrackType.Audio));
if (isVideo)
{
_videoPackets++;
}
else
{
_audioPackets++;
}
// Queue samples
if (track != null)
{
track.AddToCache(ref packet);
}
}
// Check for decoding errors, commonly the audio part is working while video decoding might fail
if (_audioPackets > 5 && _videoPackets == 0)
{
DecryptError = true;
return(S_FALSE);
}
return(S_OK);
}
