private void WriteFooter()
{
var length = _outStream.Length - 12;
_outStream.Seek(_dsdLengthPosition, SeekOrigin.Begin);
DsdChunksContainer.WriteInt64(_outStream, _dsdDataLength);
_outStream.Seek(4, SeekOrigin.Begin);
DsdChunksContainer.WriteInt64(_outStream, length);
}
private void WriteId3(Stream outStream)
{
var id3Source = GetChunkById(DsdChunk.IdType.ID3);
if (id3Source != null && id3Source.ID3 != null)
{
DsdChunksContainer.WriteId(outStream, DsdChunk.IdType.ID3);
DsdChunksContainer.WriteInt64(outStream, id3Source.ID3.Length);
DsdChunksContainer.WriteBytes(outStream, id3Source.ID3);
}
}
private void WriteHeader()
{
// DSDIFF signature
DsdChunksContainer.WriteId(_outStream, DsdChunk.IdType.FRM8);
DsdChunksContainer.WriteInt64(_outStream, 0); // Will write correct data size later
DsdChunksContainer.WriteId(_outStream, DsdChunk.IdType.DSD);
// File version
DsdChunksContainer.WriteId(_outStream, DsdChunk.IdType.FVER);
DsdChunksContainer.WriteInt64(_outStream, 4);
DsdChunksContainer.WriteUInt32(_outStream, 0x01050000);
// Properties composed chunk
var propChunk = new DsdChunksContainer(DsdChunk.IdType.PROP);
propChunk.WriteId(DsdChunk.IdType.SND);
// > FS - frequency
var fsChunk = new DsdChunksContainer(DsdChunk.PropChunk.FS);
fsChunk.WriteUInt32(2822400);
// > CHNL - channels
var chnlChunk = new DsdChunksContainer(DsdChunk.PropChunk.CHNL);
chnlChunk.WriteUInt16(_channelsCount);
var chnlId = new[] { "SLFT", "SRGT", "MLFT", "MRGT", "LS", "RS", "C", "LFE",
"C000", "C001", "C002", "C003", "C004", "C005", "C006", "C007", "C008", "C009" };
for (var n = 0; n < _channelsCount; n++)
{
chnlChunk.WriteIdString(chnlId[n]);
}
// > CMPR - compression
var cmprChunk = new DsdChunksContainer(DsdChunk.PropChunk.CMPR);
cmprChunk.WriteIdString("DSD");
const string compressorName = "not compressed ";
cmprChunk.WriteUInt8((byte)compressorName.Length);
cmprChunk.WriteIdString(compressorName);
// > ABSS - absolute start time chunk
var abssChunk = new DsdChunksContainer(DsdChunk.PropChunk.ABSS);
abssChunk.WriteUInt16(0);
abssChunk.WriteUInt8(0);
abssChunk.WriteUInt8(0);
abssChunk.WriteUInt32(0);
// > LSCO - loudspeaker configuration
var lscoChunk = new DsdChunksContainer(DsdChunk.PropChunk.LSCO);
lscoChunk.WriteUInt16((ushort)(_channelsCount <= 2 ? 0 : 4));
// << Write all property chunks info container
propChunk.WriteChunk(fsChunk);
propChunk.WriteChunk(chnlChunk);
propChunk.WriteChunk(cmprChunk);
//propChunk.WriteChunk(abssChunk);
propChunk.WriteChunk(lscoChunk);
// Write property chunk info the file
propChunk.FlushToStream(_outStream);
// Begin DSD section
DsdChunksContainer.WriteId(_outStream, DsdChunk.IdType.DSD);
_dsdLengthPosition = _outStream.Position;
DsdChunksContainer.WriteInt64(_outStream, 0);
}