public ErrorCode first(out IMediaInfo info)
{
AudioInfo ai = new AudioInfo();
ai.bitsPerSample = bps_;
ai.channels = channels_;
ai.sampleRate = (UInt16)frequency_;
UInt64 duration = 800000 * length_ / ((UInt64)channels_ * (UInt64)bps_ * (UInt64)frequency_);
info = new WaveInfo(ai, duration);
return ErrorCode.Success;
}
public ErrorCode init(AVProperty prop, IMediaInfo input, out IMediaInfo output)
{
output = null;
if (input == null)
{
return ErrorCode.NullReference;
}
if (input.stremType() != StreamType.Audio)
{
return ErrorCode.InvalidStream;
}
if (input.mediaType() == MediaType.WAVE_LPCM)
{
lpcm_ = true;
}
else if (input.mediaType() == MediaType.WAVE_PCM)
{
lpcm_ = false;
}
else
{
return ErrorCode.InvalidStream;
}
output = new WaveInfo(input.getAudioInfo(), input.getDuration());
return ErrorCode.Success;
}
public ErrorCode init(AVProperty prop, IMediaInfo input, out IMediaInfo output)
{
output = null;
if (input == null)
{
return ErrorCode.NullReference;
}
if (input.stremType() != StreamType.Audio)
{
return ErrorCode.InvalidStream;
}
if (input.mediaType() != MediaType.MPEG10)
{
return ErrorCode.InvalidStream;
}
output = new WaveInfo(input.getAudioInfo(), input.getDuration());
return ErrorCode.Success;
}