func (this *TDecGop) DecompressSlice(pcBitstream *TLibCommon.TComInputBitstream, rpcPic *TLibCommon.TComPic, pTraceFile io.Writer) {
pcSlice := rpcPic.GetSlice(rpcPic.GetCurrSliceIdx())
// Table of extracted substreams.
// These must be deallocated AND their internal fifos, too.
//TComInputBitstream **ppcSubstreams = NULL;
//-- For time output for each slice
iBeforeTime := time.Now()
uiStartCUAddr := pcSlice.GetSliceSegmentCurStartCUAddr()
uiSliceStartCuAddr := pcSlice.GetSliceCurStartCUAddr()
if uiSliceStartCuAddr == uiStartCUAddr {
l := len(this.m_sliceStartCUAddress)
this.m_sliceStartCUAddress[l] = int(uiSliceStartCuAddr)
//this.m_sliceStartCUAddress.PushBack(uiSliceStartCuAddr);
}
this.m_pcSbacDecoder.Init(this.m_pcBinCABAC) //(TDecBinIf*)
this.m_pcEntropyDecoder.SetEntropyDecoder(this.m_pcSbacDecoder)
this.m_pcEntropyDecoder.SetTraceFile(pTraceFile)
var uiNumSubstreams uint
if pcSlice.GetPPS().GetEntropyCodingSyncEnabledFlag() {
uiNumSubstreams = uint(pcSlice.GetNumEntryPointOffsets() + 1)
} else {
uiNumSubstreams = uint(pcSlice.GetPPS().GetNumSubstreams())
}
// init each couple {EntropyDecoder, Substream}
puiSubstreamSizes := pcSlice.GetSubstreamSizes()
ppcSubstreams := make([]*TLibCommon.TComInputBitstream, uiNumSubstreams)
this.m_pcSbacDecoders = make([]*TDecSbac, uiNumSubstreams)
this.m_pcBinCABACs = make([]*TDecBinCabac, uiNumSubstreams)
for ui := uint(0); ui < uiNumSubstreams; ui++ {
this.m_pcSbacDecoders[ui] = NewTDecSbac()
this.m_pcBinCABACs[ui] = NewTDecBinCabac()
this.m_pcSbacDecoders[ui].Init(this.m_pcBinCABACs[ui])
if ui+1 < uiNumSubstreams {
ppcSubstreams[ui] = pcBitstream.ExtractSubstream(puiSubstreamSizes[ui])
} else {
ppcSubstreams[ui] = pcBitstream.ExtractSubstream(pcBitstream.GetNumBitsLeft())
}
}
for ui := uint(0); ui+1 < uiNumSubstreams; ui++ {
this.m_pcEntropyDecoder.SetEntropyDecoder(this.m_pcSbacDecoders[uiNumSubstreams-1-ui])
this.m_pcEntropyDecoder.SetTraceFile(pTraceFile)
this.m_pcEntropyDecoder.SetBitstream(ppcSubstreams[uiNumSubstreams-1-ui])
this.m_pcEntropyDecoder.ResetEntropy(pcSlice)
}
this.m_pcEntropyDecoder.SetEntropyDecoder(this.m_pcSbacDecoder)
this.m_pcEntropyDecoder.SetTraceFile(pTraceFile)
this.m_pcEntropyDecoder.SetBitstream(ppcSubstreams[0])
this.m_pcEntropyDecoder.ResetEntropy(pcSlice)
if uiSliceStartCuAddr == uiStartCUAddr {
l := len(this.m_LFCrossSliceBoundaryFlag)
this.m_LFCrossSliceBoundaryFlag[l] = pcSlice.GetLFCrossSliceBoundaryFlag()
//this.m_LFCrossSliceBoundaryFlag.PushBack( pcSlice.GetLFCrossSliceBoundaryFlag());
}
this.m_pcSbacDecoders[0].Load(this.m_pcSbacDecoder)
this.m_pcSliceDecoder.DecompressSlice(ppcSubstreams, rpcPic, this.m_pcSbacDecoder, this.m_pcSbacDecoders)
this.m_pcEntropyDecoder.SetBitstream(ppcSubstreams[uiNumSubstreams-1])
// deallocate all created substreams, including internal buffers.
/*for ui := uint(0); ui < uiNumSubstreams; ui++ {
ppcSubstreams[ui]->deleteFifo();
delete ppcSubstreams[ui];
}
delete[] ppcSubstreams;
delete[] m_pcSbacDecoders;
delete[] m_pcBinCABACs;
*/
this.m_pcSbacDecoders = nil
this.m_pcBinCABACs = nil
lAfterTime := time.Now()
this.m_dDecTime += lAfterTime.Sub(iBeforeTime)
}
