public void Flush()
{
#if !MONO
if (!HDCDDLL.hdcd_decoder_flush_buffer(_decoder))
#endif
throw new Exception("error flushing buffer.");
}
public void Reset()
{
#if !MONO
if (!HDCDDLL.hdcd_decoder_reset(_decoder))
#endif
throw new Exception("error resetting decoder.");
}
public void Write(AudioBuffer buff)
{
#if !MONO
if (!HDCDDLL.hdcd_decoder_process_buffer_interleaved(_decoder, buff.Samples, buff.Length))
{
throw new Exception("HDCD processing error.");
}
#endif
}
public void GetStatistics(out hdcd_decoder_statistics stats)
{
#if !MONO
IntPtr _statsPtr = HDCDDLL.hdcd_decoder_get_statistics(_decoder);
#else
IntPtr _statsPtr = IntPtr.Zero;
#endif
if (_statsPtr == IntPtr.Zero)
{
throw new Exception("HDCD statistics error.");
}
stats = (hdcd_decoder_statistics)Marshal.PtrToStructure(_statsPtr, typeof(hdcd_decoder_statistics));
}
public void Close()
{
#if !MONO
if (_decoder != IntPtr.Zero)
{
HDCDDLL.hdcd_decoder_delete(_decoder);
}
_decoder = IntPtr.Zero;
if (_gch.IsAllocated)
{
_gch.Free();
}
#endif
}
public HDCDDotNet(int channels, int sample_rate, int output_bps, bool decode)
{
_decoder = IntPtr.Zero;
#if !MONO
if (decode)
{
_audioBuffer = new AudioBuffer(new AudioPCMConfig(output_bps, channels, 44100), 256);
}
_decoder = HDCDDLL.hdcd_decoder_new();
_channelCount = channels;
_bitsPerSample = output_bps;
if (_decoder == IntPtr.Zero)
{
throw new Exception("Failed to initialize HDCD decoder.");
}
bool b = true;
b &= HDCDDLL.hdcd_decoder_set_num_channels(_decoder, (short)_channelCount);
b &= HDCDDLL.hdcd_decoder_set_sample_rate(_decoder, sample_rate);
b &= HDCDDLL.hdcd_decoder_set_input_bps(_decoder, 16);
b &= HDCDDLL.hdcd_decoder_set_output_bps(_decoder, (short)_bitsPerSample);
if (!b)
{
throw new Exception("Failed to set up HDCD _decoder parameters.");
}
_decoderCallback = decode ? new HDCDDLL.hdcd_decoder_write_callback(DecoderCallback) : null;
_gch = GCHandle.Alloc(this);
hdcd_decoder_init_status status = HDCDDLL.hdcd_decoder_init(_decoder, IntPtr.Zero, _decoderCallback, (IntPtr)_gch);
switch (status)
{
case hdcd_decoder_init_status.HDCD_DECODER_INIT_STATUS_OK:
break;
case hdcd_decoder_init_status.HDCD_DECODER_INIT_STATUS_MEMORY_ALOCATION_ERROR:
throw new Exception("Memory allocation error.");
case hdcd_decoder_init_status.HDCD_DECODER_INIT_STATUS_INVALID_NUM_CHANNELS:
throw new Exception("Invalid number of channels.");
case hdcd_decoder_init_status.HDCD_DECODER_INIT_STATUS_INVALID_SAMPLE_RATE:
throw new Exception("Invalid sample rate.");
default:
throw new Exception("Unknown error(" + status.ToString() + ").");
}
#else
throw new Exception("HDCD unsupported.");
#endif
}
