DWORD CodecInst::DecompressBegin(LPBITMAPINFOHEADER lpbiIn, LPBITMAPINFOHEADER lpbiOut) {
DecompressEnd(); // free resources if necessary
if (!CanDecompress(lpbiIn, lpbiOut))
return ICERR_BADFORMAT;
codec=new VideoCodec();
if (!codec)
return ICERR_MEMORY;
if (!codec->SetupDecompress( lpbiIn->biWidth, lpbiIn->biHeight))
return ICERR_MEMORY;
return ICERR_OK;
}
HX_RESULT HXH263CodecInstance::DecompressStart(
const HXVA_Image_Format &srcFormat,
HXVA_Image_Format &dstFormat
)
{
// Somebody called start without end
//if(IsOpenDecoder(m_hDecoder))
// DecompressEnd();
// open decoder with CIF capabilities
// FIX: must check for success here
m_hDecoder = (S16) VvOpenDecoder(capsCIF);
if(m_hDecoder > MAX_NUM_DECODERS) {
MarkDecoderClosed(m_hDecoder);
return HXR_OUTOFMEMORY;
}
// Initialize picture descriptor
m_PicDesc.rows = ROUNDTO16(srcFormat.dimensions.height);
m_PicDesc.cols = ROUNDTO16(srcFormat.dimensions.width);
// Initialize the output picture
m_PicOut.picLayout = VIVO_YUV12;
m_PicOut.color = 1;
// initialize remaining decoder state
m_nextGob = 0;
// Grab the decoder pointer
m_lpDecoderPtr = (LPBYTE) VvGetDecoderPtr(m_hDecoder);
if(m_lpDecoderPtr==NULL) {
DecompressEnd();
return HXR_OUTOFMEMORY;
}
return HXR_OK;
}
