private unsafe void ReadSubFrames(int *ptrDestBuffer, int *ptrResidualBuffer)
{
List <FlacSubFrameBase> subFrames = new List <FlacSubFrameBase>();
//alocateOutput
var data = AllocOuputMemory(ptrDestBuffer, ptrResidualBuffer);
_subFrameData = data;
byte[] buffer = new byte[0x20000];
if ((_streamInfo.MaxFrameSize * Header.Channels * Header.BitsPerSample * 2 >> 3) > buffer.Length)
{
buffer = new byte[(_streamInfo.MaxFrameSize * Header.Channels * Header.BitsPerSample * 2 >> 3) - FlacConstant.FrameHeaderSize];
}
int read = _stream.Read(buffer, 0, (int)Math.Min(buffer.Length, _stream.Length - _stream.Position));
fixed(byte *ptrBuffer = buffer)
{
FlacBitReader reader = new FlacBitReader(ptrBuffer, 0);
for (int c = 0; c < Header.Channels; c++)
{
int bitsPerSample = Header.BitsPerSample;
if (Header.ChannelAssignment == ChannelAssignment.MidSide || Header.ChannelAssignment == ChannelAssignment.LeftSide)
{
bitsPerSample += c;
}
else if (Header.ChannelAssignment == ChannelAssignment.RightSide)
{
bitsPerSample += 1 - c;
}
var subframe = FlacSubFrameBase.GetSubFrame(reader, data[c], Header, bitsPerSample);
subFrames.Add(subframe);
}
reader.Flush(); //Zero-padding to byte alignment.
//footer
Crc16 = (short)reader.ReadBits(16);
_stream.Position -= read - reader.Position;
MapToChannels(_subFrameData);
}
#if FLAC_DEBUG
_subFrames = subFrames.AsReadOnly();
#endif
}
private unsafe int ReadSubFrames()
{
List <FlacSubFrameBase> subFrames = new List <FlacSubFrameBase>();
//alocateOutput
var data = AllocOuputMemory();
_data = data;
byte[] buffer = new byte[0x20000];
if ((_streamInfo.MaxFrameSize * Header.Channels * Header.BitsPerSample * 2 >> 3) > buffer.Length)
{
buffer = new byte[(_streamInfo.MaxFrameSize * Header.Channels * Header.BitsPerSample * 2 >> 3) - FlacConstant.FrameHeaderSize];
}
int read = _stream.Read(buffer, 0, (int)Math.Min(buffer.Length, _stream.Length - _stream.Position));
fixed(byte *ptrBuffer = buffer)
{
FlacBitReader reader = new FlacBitReader(ptrBuffer, 0);
ChannelAssignment channelAssignment = Header.ChannelAssignment;
for (int c = 0; c < Header.Channels; c++)
{
int bps = Header.BitsPerSample;
if (Header.ChannelAssignment == ChannelAssignment.MidSide || Header.ChannelAssignment == ChannelAssignment.LeftSide)
{
bps += c;
}
else if (Header.ChannelAssignment == ChannelAssignment.RightSide)
{
bps += 1 - c;
}
var subframe = FlacSubFrameBase.GetSubFrame(reader, data[c], Header, bps);
subFrames.Add(subframe);
}
reader.Flush();
CRC16 = (ushort)reader.ReadBits(16);
_stream.Position -= read - reader.Position;
SamplesToBytes(_data);
return(reader.Position);
}
}
private unsafe void ReadSubFrames()
{
List<FlacSubFrameBase> subFrames = new List<FlacSubFrameBase>();
//alocateOutput
var data = AllocOuputMemory();
_subFrames = data;
byte[] buffer = new byte[0x20000];
if ((_streamInfo.MaxFrameSize * Header.Channels * Header.BitsPerSample * 2 >> 3) > buffer.Length)
{
buffer = new byte[(_streamInfo.MaxFrameSize * Header.Channels * Header.BitsPerSample * 2 >> 3) - FlacConstant.FrameHeaderSize];
}
int read = _stream.Read(buffer, 0, (int)Math.Min(buffer.Length, _stream.Length - _stream.Position));
fixed (byte* ptrBuffer = buffer)
{
FlacBitReader reader = new FlacBitReader(ptrBuffer, 0);
for (int c = 0; c < Header.Channels; c++)
{
int bitsPerSample = Header.BitsPerSample;
if (Header.ChannelAssignment == ChannelAssignment.MidSide || Header.ChannelAssignment == ChannelAssignment.LeftSide)
bitsPerSample += c;
else if (Header.ChannelAssignment == ChannelAssignment.RightSide)
bitsPerSample += 1 - c;
var subframe = FlacSubFrameBase.GetSubFrame(reader, data[c], Header, bitsPerSample);
subFrames.Add(subframe);
}
reader.Flush();
Crc16 = (short) reader.ReadBits(16);
_stream.Position -= read - reader.Position;
MapToChannels(_subFrames);
}
}
