/// <summary>
/// Fill the decoder with data
/// </summary>
/// <param name="input">MemoryStream with the data</param>
public unsafe void Fill(MemoryStream input)
{
if (disposed)
{
throw new ObjectDisposedException("VorbisDecoder");
}
ogg_packet packet = new ogg_packet();
byte[] buffer = input.GetBuffer();
int res;
fixed(byte *buf = buffer)
{
packet.packet = &buf[input.Position];
packet.bytes = input.Length - input.Position;
packet.b_o_s = 0;
packet.e_o_s = 0;
packet.granulepos = 0;
packet.packetno = 0;
int err = VorbisLibrary.Synth(_block, new IntPtr((void *)&packet));
if (err != 0)
{
throw new InvalidOperationException("Failed to fill decoder, error - " + err);
}
res = VorbisLibrary.BlockIn(_state, _block);
}
if (res != 0)
{
throw new InvalidOperationException("Failed to fill decoder, error - " + res);
}
}
/// <summary>
/// Parse a header of the vorbis stream
/// </summary>
/// <param name="input">MemoryStream with the header</param>
/// <param name="length">Length of the header</param>
/// <param name="bos">Boolean if this is the beginning of the stream</param>
public unsafe void ProcessHeader(MemoryStream input, int length, bool bos)
{
if (disposed)
{
throw new ObjectDisposedException("VorbisDecoder");
}
ogg_packet packet = new ogg_packet();
byte[] buffer = input.GetBuffer();
int res;
fixed(byte *buf = buffer)
{
packet.packet = &buf[input.Position];
packet.bytes = length;
packet.b_o_s = bos ? 1 : 0;
packet.e_o_s = 0;
packet.granulepos = 0;
packet.packetno = 0;
res = VorbisLibrary.HeaderIn(_info, _comment, new IntPtr((void *)&packet));
}
input.Position = input.Position + length;
if (res != 0) // error ocurred
{
throw new InvalidOperationException("Failed to process header, error - " + res);
}
}
