static void WriteFmtChunk(RiffWriter writer, AudioInfo audioInfo, int bytesPerSample)
{
Contract.Requires(writer != null);
Contract.Requires(audioInfo != null);
Contract.Requires(bytesPerSample > 0);
writer.BeginChunk("fmt ", 16);
writer.Write((ushort)1);
writer.Write((ushort)audioInfo.Channels);
writer.Write((uint)audioInfo.SampleRate);
writer.Write((uint)(bytesPerSample * audioInfo.Channels * audioInfo.SampleRate));
writer.Write((ushort)(bytesPerSample * audioInfo.Channels));
writer.Write((ushort)audioInfo.BitsPerSample);
writer.FinishChunk();
}
public void Initialize(Stream stream, AudioInfo audioInfo, MetadataDictionary metadata, SettingsDictionary settings)
{
Contract.Ensures(_writer != null);
Contract.Ensures(_writer.BaseStream == stream);
Contract.Ensures(_channels == audioInfo.Channels);
Contract.Ensures(_bytesPerSample > 0);
Contract.Ensures(_multiplier > 0);
_writer = new RiffWriter(stream, "WAVE");
_channels = audioInfo.Channels;
_bytesPerSample = (int)Math.Ceiling(audioInfo.BitsPerSample / (double)8);
_multiplier = (float)Math.Pow(2, audioInfo.BitsPerSample - 1);
_writer.Initialize();
WriteFmtChunk(_writer, audioInfo, _bytesPerSample);
_writer.BeginChunk("data");
}
