public FMT_CHUNK(WaveAudioFormat audioFormat)
{
byte[] numChannelsEncoded = BitConverter.IsLittleEndian
? new byte[2] {
(byte)audioFormat.ChannelCount, 0x00
}
: new byte[2] {
0x00, (byte)audioFormat.ChannelCount
};
this.lNumChannels = Endian(numChannelsEncoded, Endianness.LITTLE);
this.lSampleRate = Endian(BitConverter.GetBytes(audioFormat.SampleRate), Endianness.LITTLE);
this.lBitsPerSample = BitConverter.IsLittleEndian
? new byte[2] {
(byte)audioFormat.BitsPerSample, 0x00
}
: new byte[2] {
0x00, (byte)audioFormat.BitsPerSample
};
int byteRate = audioFormat.SampleRate * audioFormat.ChannelCount * (audioFormat.BitsPerSample / 8);
this.lByteRate = Endian(BitConverter.GetBytes(byteRate), Endianness.LITTLE);
short blockAlign = (short)(audioFormat.ChannelCount * (audioFormat.BitsPerSample / 8));
this.lBlockAlign = new byte[] { (byte)blockAlign, (byte)(blockAlign >> 8) };
}
public WaveStream(List <WaveSample> fullAudioStream)
{
WaveAudioFormat audioFormat = fullAudioStream?[0]?.SampleFormat;
byte[] audioData = WaveGenerator.ToByteArray(fullAudioStream.ToArray());
this.riff = new WaveFileFormat.RIFF_CHUNK();
this.fmt = new WaveFileFormat.FMT_CHUNK(audioFormat);
this.data = new WaveFileFormat.DATA_CHUNK(audioData);
this.riff.SetChunkSize(4 + (8 + this.fmt.GetChunkSize()) + (8 + this.data.GetChunkSize()));
}
