private void SetComment(StreamState os, Stream stream)
{
var opusTags = new OpusTags();
opusTags.Add("ENCODER", "opusenc from libopus 1.0.1-21-gff16ab0");
opusTags.AddOption(_options.BitRate);
opusTags.AddOption(_options.BitRateEncoding);
opusTags.AddOption("ignorelength", string.Empty);
opusTags.Pad();
var opComment = new Packet
{
PacketData = opusTags.GetPacked(),
PacketDataLength = opusTags.GetPackedLength(),
Bos = 0,
Eos = 0,
GranulePos = 0
};
os.AddWaveData(opComment);
os.Flush(stream);
}
private void SetHeader(StreamState os, Stream stream)
{
UInt16 preskip = 0;
var header = new OpusHeader(_options.OutChannels.Value, _options.OutSamplingRate, preskip);
var op = new Packet
{
PacketData = header.Packet,
PacketDataLength = header.Packet.Length,
Bos = 1,
Eos = 0,
GranulePos = 0
};
os.AddWaveData(op);
os.Flush(stream);
}
public void AddWaveData(byte[] waveData)
{
var soundBuffer = new byte[waveData.Length + _notEncodedBuffer2.Length];
Array.Copy(_notEncodedBuffer2, soundBuffer, _notEncodedBuffer2.Length);
Array.Copy(waveData, 0, soundBuffer, _notEncodedBuffer2.Length, waveData.Length);
uint segmentCount = (uint)Math.Floor((decimal)soundBuffer.Length / _bytesPerSegment);
uint segmentsEnd = segmentCount * _bytesPerSegment;
uint notEncodedCount = (uint)soundBuffer.Length - segmentsEnd;
_notEncodedBuffer2 = new byte[notEncodedCount];
Array.Copy(_notEncodedBuffer2, 0, soundBuffer, segmentsEnd, notEncodedCount);
var segment = new byte[_bytesPerSegment];
GranulePos += segmentsEnd;
for (uint i = 0; i < segmentCount; i++)
{
Array.Copy(soundBuffer, i * _bytesPerSegment, segment, 0, _bytesPerSegment);
byte[] packet;
int length = _encoder.Encode(segment, _bytesPerSegment, out packet);
var opData = new Packet
{
PacketData = packet,
PacketDataLength = length,
Bos = 0,
GranulePos = GranulePos,
};
AddWaveData(opData);
}
}
public void AddWaveData(Packet packet)
{
if (packet != null)
{
lock (_packets)
{
_packets.Add(packet);
_totalBits += (uint)packet.PacketDataLength;
}
}
}
public void Packetin(Packet packet)
{
_packets.Add(packet);
_totalBits += (uint)packet.PacketData.Length;
}
internal static extern int ogg_stream_packetin(ref IntPtr os, ref Packet op);