Bool TDecTop::decode(InputNALUnit& nalu, Int& iSkipFrame, Int& iPOCLastDisplay)
{
// ignore all NAL units of layers > 0
if (nalu.m_nuhLayerId > 0)
{
fprintf (stderr, "Warning: found NAL unit with nuh_layer_id equal to %d. Ignoring.\n", nalu.m_nuhLayerId);
return false;
}
// Initialize entropy decoder
m_cEntropyDecoder.setEntropyDecoder (&m_cCavlcDecoder);
m_cEntropyDecoder.setBitstream (nalu.m_Bitstream);
switch (nalu.m_nalUnitType)
{
case NAL_UNIT_VPS:
xDecodeVPS(nalu.m_Bitstream->getFifo());
#if RExt__DECODER_DEBUG_BIT_STATISTICS
TComCodingStatistics::IncrementStatisticEP(STATS__BYTE_ALIGNMENT_BITS,nalu.m_Bitstream->readByteAlignment(),0);
#endif
return false;
case NAL_UNIT_SPS:
xDecodeSPS(nalu.m_Bitstream->getFifo());
#if RExt__DECODER_DEBUG_BIT_STATISTICS
TComCodingStatistics::IncrementStatisticEP(STATS__BYTE_ALIGNMENT_BITS,nalu.m_Bitstream->readByteAlignment(),0);
#endif
return false;
case NAL_UNIT_PPS:
xDecodePPS(nalu.m_Bitstream->getFifo());
#if RExt__DECODER_DEBUG_BIT_STATISTICS
TComCodingStatistics::IncrementStatisticEP(STATS__BYTE_ALIGNMENT_BITS,nalu.m_Bitstream->readByteAlignment(),0);
#endif
return false;
case NAL_UNIT_PREFIX_SEI:
case NAL_UNIT_SUFFIX_SEI:
xDecodeSEI( nalu.m_Bitstream, nalu.m_nalUnitType );
return false;
case NAL_UNIT_CODED_SLICE_TRAIL_R:
case NAL_UNIT_CODED_SLICE_TRAIL_N:
case NAL_UNIT_CODED_SLICE_TSA_R:
case NAL_UNIT_CODED_SLICE_TSA_N:
case NAL_UNIT_CODED_SLICE_STSA_R:
case NAL_UNIT_CODED_SLICE_STSA_N:
case NAL_UNIT_CODED_SLICE_BLA_W_LP:
case NAL_UNIT_CODED_SLICE_BLA_W_RADL:
case NAL_UNIT_CODED_SLICE_BLA_N_LP:
case NAL_UNIT_CODED_SLICE_IDR_W_RADL:
case NAL_UNIT_CODED_SLICE_IDR_N_LP:
case NAL_UNIT_CODED_SLICE_CRA:
case NAL_UNIT_CODED_SLICE_RADL_N:
case NAL_UNIT_CODED_SLICE_RADL_R:
case NAL_UNIT_CODED_SLICE_RASL_N:
case NAL_UNIT_CODED_SLICE_RASL_R:
return xDecodeSlice(nalu, iSkipFrame, iPOCLastDisplay);
break;
case NAL_UNIT_EOS:
m_associatedIRAPType = NAL_UNIT_INVALID;
m_pocCRA = 0;
m_pocRandomAccess = MAX_INT;
m_prevPOC = MAX_INT;
m_prevSliceSkipped = false;
m_skippedPOC = 0;
return false;
case NAL_UNIT_ACCESS_UNIT_DELIMITER:
// TODO: process AU delimiter
return false;
case NAL_UNIT_EOB:
return false;
case NAL_UNIT_FILLER_DATA:
return false;
case NAL_UNIT_RESERVED_VCL_N10:
case NAL_UNIT_RESERVED_VCL_R11:
case NAL_UNIT_RESERVED_VCL_N12:
case NAL_UNIT_RESERVED_VCL_R13:
case NAL_UNIT_RESERVED_VCL_N14:
case NAL_UNIT_RESERVED_VCL_R15:
case NAL_UNIT_RESERVED_IRAP_VCL22:
case NAL_UNIT_RESERVED_IRAP_VCL23:
case NAL_UNIT_RESERVED_VCL24:
case NAL_UNIT_RESERVED_VCL25:
case NAL_UNIT_RESERVED_VCL26:
case NAL_UNIT_RESERVED_VCL27:
case NAL_UNIT_RESERVED_VCL28:
case NAL_UNIT_RESERVED_VCL29:
case NAL_UNIT_RESERVED_VCL30:
case NAL_UNIT_RESERVED_VCL31:
case NAL_UNIT_RESERVED_NVCL41:
case NAL_UNIT_RESERVED_NVCL42:
case NAL_UNIT_RESERVED_NVCL43:
case NAL_UNIT_RESERVED_NVCL44:
case NAL_UNIT_RESERVED_NVCL45:
case NAL_UNIT_RESERVED_NVCL46:
case NAL_UNIT_RESERVED_NVCL47:
printf ("Note: found reserved NAL unit.\n");
return false;
case NAL_UNIT_UNSPECIFIED_48:
case NAL_UNIT_UNSPECIFIED_49:
case NAL_UNIT_UNSPECIFIED_50:
case NAL_UNIT_UNSPECIFIED_51:
case NAL_UNIT_UNSPECIFIED_52:
case NAL_UNIT_UNSPECIFIED_53:
case NAL_UNIT_UNSPECIFIED_54:
case NAL_UNIT_UNSPECIFIED_55:
case NAL_UNIT_UNSPECIFIED_56:
case NAL_UNIT_UNSPECIFIED_57:
case NAL_UNIT_UNSPECIFIED_58:
case NAL_UNIT_UNSPECIFIED_59:
case NAL_UNIT_UNSPECIFIED_60:
case NAL_UNIT_UNSPECIFIED_61:
case NAL_UNIT_UNSPECIFIED_62:
case NAL_UNIT_UNSPECIFIED_63:
printf ("Note: found unspecified NAL unit.\n");
return false;
default:
assert (0);
break;
}
return false;
}
Bool TDecTop::decode(InputNALUnit& nalu, Int& iSkipFrame, Int& iPOCLastDisplay)
{
// ignore all NAL units of layers > 0
if (nalu.m_nuhLayerId > 0)
{
fprintf (stderr, "Warning: found NAL unit with nuh_layer_id equal to %d. Ignoring.\n", nalu.m_nuhLayerId);
return false;
}
// Initialize entropy decoder
m_cEntropyDecoder.setEntropyDecoder (&m_cCavlcDecoder);
m_cEntropyDecoder.setBitstream (&(nalu.getBitstream()));
switch (nalu.m_nalUnitType)
{
case NAL_UNIT_VPS:
xDecodeVPS(nalu.getBitstream().getFifo());
return false;
case NAL_UNIT_SPS:
xDecodeSPS(nalu.getBitstream().getFifo());
return false;
case NAL_UNIT_PPS:
xDecodePPS(nalu.getBitstream().getFifo());
return false;
case NAL_UNIT_PREFIX_SEI:
// Buffer up prefix SEI messages until SPS of associated VCL is known.
m_prefixSEINALUs.push_back(new InputNALUnit(nalu));
return false;
case NAL_UNIT_SUFFIX_SEI:
if (m_pcPic)
{
m_seiReader.parseSEImessage( &(nalu.getBitstream()), m_pcPic->getSEIs(), nalu.m_nalUnitType, m_parameterSetManager.getActiveSPS(), m_pDecodedSEIOutputStream );
}
else
{
printf ("Note: received suffix SEI but no picture currently active.\n");
}
return false;
case NAL_UNIT_CODED_SLICE_TRAIL_R:
case NAL_UNIT_CODED_SLICE_TRAIL_N:
case NAL_UNIT_CODED_SLICE_TSA_R:
case NAL_UNIT_CODED_SLICE_TSA_N:
case NAL_UNIT_CODED_SLICE_STSA_R:
case NAL_UNIT_CODED_SLICE_STSA_N:
case NAL_UNIT_CODED_SLICE_BLA_W_LP:
case NAL_UNIT_CODED_SLICE_BLA_W_RADL:
case NAL_UNIT_CODED_SLICE_BLA_N_LP:
case NAL_UNIT_CODED_SLICE_IDR_W_RADL:
case NAL_UNIT_CODED_SLICE_IDR_N_LP:
case NAL_UNIT_CODED_SLICE_CRA:
case NAL_UNIT_CODED_SLICE_RADL_N:
case NAL_UNIT_CODED_SLICE_RADL_R:
case NAL_UNIT_CODED_SLICE_RASL_N:
case NAL_UNIT_CODED_SLICE_RASL_R:
return xDecodeSlice(nalu, iSkipFrame, iPOCLastDisplay);
break;
case NAL_UNIT_EOS:
m_associatedIRAPType = NAL_UNIT_INVALID;
m_pocCRA = 0;
m_pocRandomAccess = MAX_INT;
m_prevPOC = MAX_INT;
m_prevSliceSkipped = false;
m_skippedPOC = 0;
return false;
case NAL_UNIT_ACCESS_UNIT_DELIMITER:
{
AUDReader audReader;
UInt picType;
audReader.parseAccessUnitDelimiter(&(nalu.getBitstream()),picType);
printf ("Note: found NAL_UNIT_ACCESS_UNIT_DELIMITER\n");
return false;
}
case NAL_UNIT_EOB:
return false;
case NAL_UNIT_FILLER_DATA:
{
FDReader fdReader;
UInt size;
fdReader.parseFillerData(&(nalu.getBitstream()),size);
printf ("Note: found NAL_UNIT_FILLER_DATA with %u bytes payload.\n", size);
return false;
}
case NAL_UNIT_RESERVED_VCL_N10:
case NAL_UNIT_RESERVED_VCL_R11:
case NAL_UNIT_RESERVED_VCL_N12:
case NAL_UNIT_RESERVED_VCL_R13:
case NAL_UNIT_RESERVED_VCL_N14:
case NAL_UNIT_RESERVED_VCL_R15:
case NAL_UNIT_RESERVED_IRAP_VCL22:
case NAL_UNIT_RESERVED_IRAP_VCL23:
case NAL_UNIT_RESERVED_VCL24:
case NAL_UNIT_RESERVED_VCL25:
case NAL_UNIT_RESERVED_VCL26:
case NAL_UNIT_RESERVED_VCL27:
case NAL_UNIT_RESERVED_VCL28:
case NAL_UNIT_RESERVED_VCL29:
case NAL_UNIT_RESERVED_VCL30:
case NAL_UNIT_RESERVED_VCL31:
printf ("Note: found reserved VCL NAL unit.\n");
xParsePrefixSEIsForUnknownVCLNal();
return false;
case NAL_UNIT_RESERVED_NVCL41:
case NAL_UNIT_RESERVED_NVCL42:
case NAL_UNIT_RESERVED_NVCL43:
case NAL_UNIT_RESERVED_NVCL44:
case NAL_UNIT_RESERVED_NVCL45:
case NAL_UNIT_RESERVED_NVCL46:
case NAL_UNIT_RESERVED_NVCL47:
printf ("Note: found reserved NAL unit.\n");
return false;
case NAL_UNIT_UNSPECIFIED_48:
case NAL_UNIT_UNSPECIFIED_49:
case NAL_UNIT_UNSPECIFIED_50:
case NAL_UNIT_UNSPECIFIED_51:
case NAL_UNIT_UNSPECIFIED_52:
case NAL_UNIT_UNSPECIFIED_53:
case NAL_UNIT_UNSPECIFIED_54:
case NAL_UNIT_UNSPECIFIED_55:
case NAL_UNIT_UNSPECIFIED_56:
case NAL_UNIT_UNSPECIFIED_57:
case NAL_UNIT_UNSPECIFIED_58:
case NAL_UNIT_UNSPECIFIED_59:
case NAL_UNIT_UNSPECIFIED_60:
case NAL_UNIT_UNSPECIFIED_61:
case NAL_UNIT_UNSPECIFIED_62:
case NAL_UNIT_UNSPECIFIED_63:
printf ("Note: found unspecified NAL unit.\n");
return false;
default:
assert (0);
break;
}
return false;
}