public static bool Read(DataStream stream, ref int width, ref int height)
{
AVCPacketType avcType = (AVCPacketType)stream.ReadByte();
// make sure, that this is header packet
if (avcType != AVCPacketType.SequenceHeader)
{
return(false);
}
// read composition time
stream.Read24Int();
AVCDecoderConfigurationRecord configuration = new AVCDecoderConfigurationRecord(stream);
// do we have SPS?
if ((configuration.NumOfSequenceParameterSets & 0x1F) == 0)
{
return(false);
}
// read SPS size
ushort spsSize = stream.ReadUShort();
// read SPS itself
byte[] spsBuffer = stream.ReadBytes(spsSize);
ParseSPS(spsBuffer, out width, out height);
return(true);
}
public AVCPacket(Stream stream, int Count)
{
//Header: 00 00 00 00
//NALU: 01 00 00 00
this.Type = (AVCPacketType)stream.ReadUInt8(); //1
this.Time = (int)stream.ReadUInt24(); //CompositionTime //3
if (this.Type == AVCPacketType.AVCSequenceHeader)
{
this.AVCDecoderConfigurationRecord = stream.ReadBytes(Count - 4);
}
else
{
this.NALUs = stream.ReadBytes(Count - 4);
};
}
