public byte[][] DecodeAudio (Packet packet)
{
if (packet == null)
throw new ArgumentNullException ("packet");
List<byte[]> buffers = new List<byte[]>();
byte[] buffer = new byte[FFmpeg.AVCODEC_MAX_AUDIO_FRAME_SIZE];
int audio_pkt_size = packet.Size;
fixed (byte* bptr = buffer)
{
while (audio_pkt_size > 0)
{
int data_size = buffer.Length;
int len = FFmpeg.avcodec_decode_audio2 (this.context.ptr, (IntPtr)bptr, ref data_size, packet.packet->data, audio_pkt_size);
if (len < 0)
break;
#if !X64
packet.packet->data = new IntPtr (packet.packet->data.ToInt32() + len);
#else
packet.packet->data = new IntPtr (packet.packet->data.ToInt64() + len);
#endif
audio_pkt_size -= len;
byte[] pcm = new byte[data_size];
Array.Copy (buffer, pcm, data_size);
buffers.Add (pcm);
}
}
return buffers.ToArray();
}
public bool ReadPacket (out Packet packet)
{
packet = null;
IntPtr pptr = Marshal.AllocHGlobal (sizeof (AVPacket));
if (FFmpeg.av_read_frame (this.ptr, pptr) < 0)
return false;
packet = new Packet (pptr, this.streams[((AVPacket*)pptr)->stream_index]);
return true;
}
