HRESULT CBlock::Write(IStream* pStream)
{
HeaderWrite(pStream);
TrackNumber.Write(pStream);
short t = (short)TimeCode;
bswap((BYTE*)&t, 2);
pStream->Write(&t, 2, nullptr);
BYTE Lacing = 0;
BYTE n = (BYTE)BlockData.GetCount();
if (n > 1) {
Lacing |= 2;
}
pStream->Write(&Lacing, 1, nullptr);
if (n > 1) {
pStream->Write(&n, 1, nullptr);
POSITION pos = BlockData.GetHeadPosition();
while (pos) {
CBinary* b = BlockData.GetNext(pos);
if (pos) {
INT_PTR len = b->GetCount();
while (len >= 0) {
n = (BYTE)std::min<INT_PTR>(len, 255);
pStream->Write(&n, 1, nullptr);
len -= 255;
}
}
}
}
POSITION pos = BlockData.GetHeadPosition();
while (pos) {
CBinary* b = BlockData.GetNext(pos);
pStream->Write(b->GetData(), (ULONG)b->GetCount(), nullptr);
}
return S_OK;
}
HRESULT CBlock::Write(IStream* pStream)
{
HeaderWrite(pStream);
TrackNumber.Write(pStream);
short t = (short)TimeCode;
bswap((BYTE*)&t, 2);
pStream->Write(&t, 2, NULL);
BYTE Lacing = 0;
BYTE n = BlockData.GetCount();
if(n > 1) Lacing |= 2;
pStream->Write(&Lacing, 1, NULL);
if(n > 1)
{
pStream->Write(&n, 1, NULL);
POSITION pos = BlockData.GetHeadPosition();
while(pos)
{
CBinary* b = BlockData.GetNext(pos);
if(pos)
{
int len = b->GetCount();
while(len >= 0)
{
n = min(len, 255);
pStream->Write(&n, 1, NULL);
len -= 255;
}
}
}
}
POSITION pos = BlockData.GetHeadPosition();
while(pos)
{
CBinary* b = BlockData.GetNext(pos);
pStream->Write(b->GetData(), b->GetCount(), NULL);
}
return S_OK;
}
MatroskaWriter::QWORD CBlock::Size(bool fWithHeader)
{
MatroskaWriter::QWORD len = 0;
len += TrackNumber.Size() + 2 + 1; // TrackNumber + TimeCode + Lacing
if(BlockData.GetCount() > 1)
{
len += 1; // nBlockData
POSITION pos = BlockData.GetHeadPosition();
while(pos)
{
CBinary* b = BlockData.GetNext(pos);
if(pos) len += b->GetCount()/255 + 1;
}
}
POSITION pos = BlockData.GetHeadPosition();
while(pos)
{
CBinary* b = BlockData.GetNext(pos);
len += b->GetCount();
}
if(fWithHeader) len += HeaderSize(len);
return len;
}