static u32 DecodeBufferingPeriod(
strmData_t *pStrmData,
seiBufferingPeriod_t *pBufferingPeriod,
u32 cpbCnt,
u32 initialCpbRemovalDelayLength,
u32 nalHrdBpPresentFlag,
u32 vclHrdBpPresentFlag)
{
/* Variables */
u32 tmp, i;
/* Code */
ASSERT(pStrmData);
ASSERT(pBufferingPeriod);
ASSERT(cpbCnt);
ASSERT(initialCpbRemovalDelayLength);
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pBufferingPeriod->seqParameterSetId);
if (tmp != HANTRO_OK)
return(tmp);
if (pBufferingPeriod->seqParameterSetId > 31)
return(HANTRO_NOK);
if (nalHrdBpPresentFlag)
{
for (i = 0; i < cpbCnt; i++)
{
tmp = h264bsdGetBits(pStrmData, initialCpbRemovalDelayLength);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
if (tmp == 0)
return(HANTRO_NOK);
pBufferingPeriod->initialCpbRemovalDelay[i] = tmp;
tmp = h264bsdGetBits(pStrmData, initialCpbRemovalDelayLength);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pBufferingPeriod->initialCpbRemovalDelayOffset[i] = tmp;
}
}
if (vclHrdBpPresentFlag)
{
for (i = 0; i < cpbCnt; i++)
{
tmp = h264bsdGetBits(pStrmData, initialCpbRemovalDelayLength);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pBufferingPeriod->initialCpbRemovalDelay[i] = tmp;
tmp = h264bsdGetBits(pStrmData, initialCpbRemovalDelayLength);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pBufferingPeriod->initialCpbRemovalDelayOffset[i] = tmp;
}
}
return(HANTRO_OK);
}
static u32 DecodePictureTiming(
strmData_t *pStrmData,
seiPicTiming_t *pPicTiming,
u32 cpbRemovalDelayLength,
u32 dpbOutputDelayLength,
u32 timeOffsetLength,
u32 cpbDpbDelaysPresentFlag,
u32 picStructPresentFlag)
{
/* Variables */
u32 tmp, i;
i32 itmp;
/* Code */
ASSERT(pStrmData);
ASSERT(pPicTiming);
if (cpbDpbDelaysPresentFlag)
{
tmp = h264bsdGetBits(pStrmData, cpbRemovalDelayLength);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pPicTiming->cpbRemovalDelay = tmp;
tmp = h264bsdGetBits(pStrmData, dpbOutputDelayLength);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pPicTiming->dpbOutputDelay = tmp;
}
if (picStructPresentFlag)
{
tmp = h264bsdGetBits(pStrmData, 4);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
if (tmp > 8)
return(HANTRO_NOK);
pPicTiming->picStruct = tmp;
for (i = 0; i < numClockTS[pPicTiming->picStruct]; i++)
{
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pPicTiming->clockTimeStampFlag[i] = tmp == 1 ?
HANTRO_TRUE : HANTRO_FALSE;
if (pPicTiming->clockTimeStampFlag[i])
{
tmp = h264bsdGetBits(pStrmData, 2);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pPicTiming->ctType[i] = tmp;
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pPicTiming->nuitFieldBasedFlag[i] = tmp == 1 ?
HANTRO_TRUE : HANTRO_FALSE;
tmp = h264bsdGetBits(pStrmData, 5);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
if (tmp > 6)
return(HANTRO_NOK);
pPicTiming->countingType[i] = tmp;
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pPicTiming->fullTimeStampFlag[i] = tmp == 1 ?
HANTRO_TRUE : HANTRO_FALSE;
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pPicTiming->discontinuityFlag[i] = tmp == 1 ?
HANTRO_TRUE : HANTRO_FALSE;
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pPicTiming->cntDroppedFlag[i] = tmp == 1 ?
HANTRO_TRUE : HANTRO_FALSE;
tmp = h264bsdGetBits(pStrmData, 8);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pPicTiming->nFrames[i] = tmp;
if (pPicTiming->fullTimeStampFlag[i])
{
tmp = h264bsdGetBits(pStrmData, 6);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
if (tmp > 59)
return(HANTRO_NOK);
pPicTiming->secondsValue[i] = tmp;
tmp = h264bsdGetBits(pStrmData, 6);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
if (tmp > 59)
return(HANTRO_NOK);
pPicTiming->minutesValue[i] = tmp;
tmp = h264bsdGetBits(pStrmData, 5);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
if (tmp > 23)
return(HANTRO_NOK);
pPicTiming->hoursValue[i] = tmp;
}
else
{
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pPicTiming->secondsFlag[i] = tmp == 1 ?
HANTRO_TRUE : HANTRO_FALSE;
if (pPicTiming->secondsFlag[i])
{
tmp = h264bsdGetBits(pStrmData, 6);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
if (tmp > 59)
return(HANTRO_NOK);
pPicTiming->secondsValue[i] = tmp;
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pPicTiming->minutesFlag[i] = tmp == 1 ?
HANTRO_TRUE : HANTRO_FALSE;
if (pPicTiming->minutesFlag[i])
{
tmp = h264bsdGetBits(pStrmData, 6);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
if (tmp > 59)
return(HANTRO_NOK);
pPicTiming->minutesValue[i] = tmp;
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pPicTiming->hoursFlag[i] = tmp == 1 ?
HANTRO_TRUE : HANTRO_FALSE;
if (pPicTiming->hoursFlag[i])
{
tmp = h264bsdGetBits(pStrmData, 5);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
if (tmp > 23)
return(HANTRO_NOK);
pPicTiming->hoursValue[i] = tmp;
}
}
}
}
if (timeOffsetLength)
{
tmp = h264bsdGetBits(pStrmData, timeOffsetLength);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
itmp = (i32)tmp;
/* following "converts" timeOffsetLength-bit signed
* integer into i32 */
/*lint -save -e701 -e702 */
itmp <<= (32 - timeOffsetLength);
itmp >>= (32 - timeOffsetLength);
/*lint -restore */
pPicTiming->timeOffset[i] = itmp;
}
else
pPicTiming->timeOffset[i] = 0;
}
}
u32 DecodeMvcExtension(strmData_t *pStrmData, seqParamSet_t *pSeqParamSet)
{
/* Variables */
u32 tmp, i, j, k;
u32 value, tmpCount, tmpCount1, tmpCount2;
hrdParameters_t hrdParams;
/* Code */
ASSERT(pStrmData);
ASSERT(pSeqParamSet);
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
pSeqParamSet->mvc.numViews = value + 1;
if (pSeqParamSet->mvc.numViews > MAX_NUM_VIEWS)
return(HANTRO_NOK);
/* view_id */
for (i = 0; i < pSeqParamSet->mvc.numViews; i++)
{
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
if (i < MAX_NUM_VIEWS)
pSeqParamSet->mvc.viewId[i] = value;
}
for (i = 1; i < pSeqParamSet->mvc.numViews; i++)
{
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
/*pSeqParamSet->mvc.numAnchorRefsL0[i] = value;*/
tmpCount = value;
for (j = 0; j < tmpCount; j++)
{
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
/*pSeqParamSet->mvc.anchorRefL0[i][j] = value;*/
}
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
/*pSeqParamSet->mvc.numNonAnchorRefsL0[i] = value;*/
tmpCount = value;
for (j = 0; j < tmpCount; j++)
{
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
/*pSeqParamSet->mvc.nonAnchorRefL0[i][j] = value;*/
}
}
for (i = 1; i < pSeqParamSet->mvc.numViews; i++)
{
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
/*pSeqParamSet->mvc.numAnchorRefsL1[i] = value;*/
tmpCount = value;
for (j = 0; j < tmpCount; j++)
{
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
/*pSeqParamSet->mvc.anchorRefL1[i][j] = value;*/
}
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
/*pSeqParamSet->mvc.numNonAnchorRefsL1[i] = value;*/
tmpCount = value;
for (j = 0; j < tmpCount; j++)
{
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
/*pSeqParamSet->mvc.nonAnchorRefL1[i][j] = value;*/
}
}
/* num_level_values_signalled_minus1 */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
tmpCount = value + 1;
for (i = 0; i < tmpCount; i++)
{
/* level_idc */
tmp = h264bsdGetBits(pStrmData, 8);
/* num_applicable_ops_minus1 */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
tmpCount1 = value + 1;
for (j = 0; j < tmpCount1; j++)
{
/* applicable_op_temporal_id */
tmp = h264bsdGetBits(pStrmData, 3);
/* applicable_op_num_target_views_minus1 */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
tmpCount2 = value + 1;
for (k = 0; k < tmpCount2; k++)
{
/* applicable_op_target_view_id */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
}
/* applicable_op_num_views_minus1 */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
}
}
/* mvc_vui_parameters_present_flag */
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == 1)
{
/* vui_mvc_num_ops_minus1 */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
tmpCount = value + 1;
for (i = 0; i < tmpCount; i++)
{
/* vui_mvc_temporal_id */
tmp = h264bsdGetBits(pStrmData, 3);
/* vui_mvc_num_target_output_views_minus1 */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
tmpCount1 = value + 1;
for (k = 0; k < tmpCount1; k++)
{
/* vui_mvc_view_id */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
}
/* vui_mvc_timing_info_present_flag */
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == 1)
{
/* vui_mvc_num_units_in_tick */
tmp = h264bsdShowBits(pStrmData,32);
if (h264bsdFlushBits(pStrmData, 32) == END_OF_STREAM)
return(END_OF_STREAM);
/* vui_mvc_time_scale */
tmp = h264bsdShowBits(pStrmData,32);
if (h264bsdFlushBits(pStrmData, 32) == END_OF_STREAM)
return(END_OF_STREAM);
/* vui_mvc_fixed_frame_rate_flag */
tmp = h264bsdGetBits(pStrmData, 1);
}
j = 0;
/* vui_mvc_nal_hrd_parameters_present_flag */
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == 1)
{
j = 1;
tmp = h264bsdDecodeHrdParameters(pStrmData, &hrdParams);
}
/* vui_mvc_vcl_hrd_parameters_present_flag */
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == 1)
{
j = 1;
tmp = h264bsdDecodeHrdParameters(pStrmData, &hrdParams);
}
if (j)
{
/* vui_mvc_low_delay_hrd_flag */
tmp = h264bsdGetBits(pStrmData, 1);
}
/* vui_mvc_pic_struct_present_flag */
tmp = h264bsdGetBits(pStrmData, 1);
}
}
return(HANTRO_OK);
}
u32 h264bsdDecodeSeiMessage(
strmData_t *pStrmData,
seqParamSet_t *pSeqParamSet,
seiMessage_t *pSeiMessage,
u32 numSliceGroups)
{
/* Variables */
u32 tmp, payloadType, payloadSize, status;
/* Code */
ASSERT(pStrmData);
ASSERT(pSeiMessage);
H264SwDecMemset(pSeiMessage, 0, sizeof(seiMessage_t));
do
{
payloadType = 0;
while((tmp = h264bsdGetBits(pStrmData, 8)) == 0xFF)
{
payloadType += 255;
}
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
payloadType += tmp;
payloadSize = 0;
while((tmp = h264bsdGetBits(pStrmData, 8)) == 0xFF)
{
payloadSize += 255;
}
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
payloadSize += tmp;
pSeiMessage->payloadType = payloadType;
switch (payloadType)
{
case 0:
ASSERT(pSeqParamSet);
status = DecodeBufferingPeriod(
pStrmData,
&pSeiMessage->bufferingPeriod,
pSeqParamSet->vuiParameters->vclHrdParameters.cpbCnt,
pSeqParamSet->vuiParameters->vclHrdParameters.
initialCpbRemovalDelayLength,
pSeqParamSet->vuiParameters->nalHrdParametersPresentFlag,
pSeqParamSet->vuiParameters->vclHrdParametersPresentFlag);
break;
case 1:
ASSERT(pSeqParamSet->vuiParametersPresentFlag);
status = DecodePictureTiming(
pStrmData,
&pSeiMessage->picTiming,
pSeqParamSet->vuiParameters->vclHrdParameters.
cpbRemovalDelayLength,
pSeqParamSet->vuiParameters->vclHrdParameters.
dpbOutputDelayLength,
pSeqParamSet->vuiParameters->vclHrdParameters.
timeOffsetLength,
pSeqParamSet->vuiParameters->nalHrdParametersPresentFlag ||
pSeqParamSet->vuiParameters->vclHrdParametersPresentFlag ?
HANTRO_TRUE : HANTRO_FALSE,
pSeqParamSet->vuiParameters->picStructPresentFlag);
break;
case 2:
status = DecodePanScanRectangle(
pStrmData,
&pSeiMessage->panScanRect);
break;
case 3:
status = DecodeFillerPayload(pStrmData, payloadSize);
break;
case 4:
status = DecodeUserDataRegisteredITuTT35(
pStrmData,
&pSeiMessage->userDataRegisteredItuTT35,
payloadSize);
break;
case 5:
status = DecodeUserDataUnregistered(
pStrmData,
&pSeiMessage->userDataUnregistered,
payloadSize);
break;
case 6:
status = DecodeRecoveryPoint(
pStrmData,
&pSeiMessage->recoveryPoint);
break;
case 7:
status = DecodeDecRefPicMarkingRepetition(
pStrmData,
&pSeiMessage->decRefPicMarkingRepetition,
pSeqParamSet->numRefFrames);
break;
case 8:
ASSERT(pSeqParamSet);
status = DecodeSparePic(
pStrmData,
&pSeiMessage->sparePic,
pSeqParamSet->picWidthInMbs * pSeqParamSet->picHeightInMbs);
break;
case 9:
status = DecodeSceneInfo(
pStrmData,
&pSeiMessage->sceneInfo);
break;
case 10:
status = DecodeSubSeqInfo(
pStrmData,
&pSeiMessage->subSeqInfo);
break;
case 11:
status = DecodeSubSeqLayerCharacteristics(
pStrmData,
&pSeiMessage->subSeqLayerCharacteristics);
break;
case 12:
status = DecodeSubSeqCharacteristics(
pStrmData,
&pSeiMessage->subSeqCharacteristics);
break;
case 13:
status = DecodeFullFrameFreeze(
pStrmData,
&pSeiMessage->fullFrameFreeze);
break;
case 14: /* This SEI does not contain data, what to do ??? */
status = HANTRO_OK;
break;
case 15:
status = DecodeFullFrameSnapshot(
pStrmData,
&pSeiMessage->fullFrameSnapshot);
break;
case 16:
status = DecodeProgressiveRefinementSegmentStart(
pStrmData,
&pSeiMessage->progressiveRefinementSegmentStart);
break;
case 17:
status = DecodeProgressiveRefinementSegmentEnd(
pStrmData,
&pSeiMessage->progressiveRefinementSegmentEnd);
break;
case 18:
ASSERT(numSliceGroups);
status = DecodeMotionConstrainedSliceGroupSet(
pStrmData,
&pSeiMessage->motionConstrainedSliceGroupSet,
numSliceGroups);
break;
default:
status = DecodeReservedSeiMessage(
pStrmData,
&pSeiMessage->reservedSeiMessage,
payloadSize);
break;
}
if (status != HANTRO_OK)
return(status);
while (!h264bsdIsByteAligned(pStrmData))
{
if (h264bsdGetBits(pStrmData, 1) != 1)
return(HANTRO_NOK);
while (!h264bsdIsByteAligned(pStrmData))
{
if (h264bsdGetBits(pStrmData, 1) != 0)
return(HANTRO_NOK);
}
}
} while (h264bsdMoreRbspData(pStrmData));
return(h264bsdRbspTrailingBits(pStrmData));
}
u32 h264bsdDecodeSliceHeader(strmData_t *pStrmData, sliceHeader_t *pSliceHeader,
seqParamSet_t *pSeqParamSet, picParamSet_t *pPicParamSet,
nalUnit_t *pNalUnit)
{
/* Variables */
u32 tmp, i, value;
i32 itmp;
u32 picSizeInMbs;
/* Code */
ASSERT(pStrmData);
ASSERT(pSliceHeader);
ASSERT(pSeqParamSet);
ASSERT(pPicParamSet);
ASSERT( pNalUnit->nalUnitType == NAL_CODED_SLICE ||
pNalUnit->nalUnitType == NAL_CODED_SLICE_IDR );
H264SwDecMemset(pSliceHeader, 0, sizeof(sliceHeader_t));
picSizeInMbs = pSeqParamSet->picWidthInMbs * pSeqParamSet->picHeightInMbs;
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
pSliceHeader->firstMbInSlice = value;
if (value >= picSizeInMbs)
{
EPRINT("first_mb_in_slice");
return(HANTRO_NOK);
}
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
pSliceHeader->sliceType = value;
/* slice type has to be either I or P slice. P slice is not allowed when
* current NAL unit is an IDR NAL unit or num_ref_frames is 0 */
if ( !IS_I_SLICE(pSliceHeader->sliceType) &&
( !IS_P_SLICE(pSliceHeader->sliceType) ||
IS_IDR_NAL_UNIT(pNalUnit) ||
!pSeqParamSet->numRefFrames ) )
{
EPRINT("slice_type");
return(HANTRO_NOK);
}
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
pSliceHeader->picParameterSetId = value;
if (pSliceHeader->picParameterSetId != pPicParamSet->picParameterSetId)
{
EPRINT("pic_parameter_set_id");
return(HANTRO_NOK);
}
/* log2(maxFrameNum) -> num bits to represent frame_num */
i = 0;
while (pSeqParamSet->maxFrameNum >> i)
i++;
i--;
tmp = h264bsdGetBits(pStrmData, i);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
if (IS_IDR_NAL_UNIT(pNalUnit) && tmp != 0)
{
EPRINT("frame_num");
return(HANTRO_NOK);
}
pSliceHeader->frameNum = tmp;
if (IS_IDR_NAL_UNIT(pNalUnit))
{
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
pSliceHeader->idrPicId = value;
if (value > 65535)
{
EPRINT("idr_pic_id");
return(HANTRO_NOK);
}
}
if (pSeqParamSet->picOrderCntType == 0)
{
/* log2(maxPicOrderCntLsb) -> num bits to represent pic_order_cnt_lsb */
i = 0;
while (pSeqParamSet->maxPicOrderCntLsb >> i)
i++;
i--;
tmp = h264bsdGetBits(pStrmData, i);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pSliceHeader->picOrderCntLsb = tmp;
if (pPicParamSet->picOrderPresentFlag)
{
tmp = h264bsdDecodeExpGolombSigned(pStrmData, &itmp);
if (tmp != HANTRO_OK)
return(tmp);
pSliceHeader->deltaPicOrderCntBottom = itmp;
}
/* check that picOrderCnt for IDR picture will be zero. See
* DecodePicOrderCnt function to understand the logic here */
if ( IS_IDR_NAL_UNIT(pNalUnit) &&
( (pSliceHeader->picOrderCntLsb >
pSeqParamSet->maxPicOrderCntLsb/2) ||
MIN((i32)pSliceHeader->picOrderCntLsb,
(i32)pSliceHeader->picOrderCntLsb +
pSliceHeader->deltaPicOrderCntBottom) != 0 ) )
{
return(HANTRO_NOK);
}
}
u32 h264bsdDecodeSeqParamSet(strmData_t *pStrmData, seqParamSet_t *pSeqParamSet,
u32 mvcFlag)
{
/* Variables */
u32 tmp, i, value;
/* Code */
ASSERT(pStrmData);
ASSERT(pSeqParamSet);
(void)DWLmemset(pSeqParamSet, 0, sizeof(seqParamSet_t));
/* profile_idc */
tmp = h264bsdGetBits(pStrmData, 8);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
if (tmp != 66)
{
DEBUG_PRINT(("NOT BASELINE PROFILE %d\n", tmp));
}
#ifdef ASIC_TRACE_SUPPORT
if (tmp==66)
trace_h264DecodingTools.profileType.baseline = 1;
if (tmp==77)
trace_h264DecodingTools.profileType.main = 1;
if (tmp == 100)
trace_h264DecodingTools.profileType.high = 1;
#endif
pSeqParamSet->profileIdc = tmp;
/* constrained_set0_flag */
tmp = h264bsdGetBits(pStrmData, 1);
pSeqParamSet->constrained_set0_flag = tmp;
/* constrained_set1_flag */
tmp = h264bsdGetBits(pStrmData, 1);
pSeqParamSet->constrained_set1_flag = tmp;
/* constrained_set2_flag */
tmp = h264bsdGetBits(pStrmData, 1);
pSeqParamSet->constrained_set2_flag = tmp;
/* constrained_set3_flag */
tmp = h264bsdGetBits(pStrmData, 1);
pSeqParamSet->constrained_set3_flag = tmp;
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
/* reserved_zero_4bits, values of these bits shall be ignored */
tmp = h264bsdGetBits(pStrmData, 4);
if (tmp == END_OF_STREAM)
{
ERROR_PRINT("reserved_zero_4bits");
return(HANTRO_NOK);
}
tmp = h264bsdGetBits(pStrmData, 8);
if (tmp == END_OF_STREAM)
{
ERROR_PRINT("level_idc");
return(HANTRO_NOK);
}
pSeqParamSet->levelIdc = tmp;
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pSeqParamSet->seqParameterSetId);
if (tmp != HANTRO_OK)
return(tmp);
if (pSeqParamSet->seqParameterSetId >= MAX_NUM_SEQ_PARAM_SETS)
{
ERROR_PRINT("seq_param_set_id");
return(HANTRO_NOK);
}
if( pSeqParamSet->profileIdc >= 100 )
{
/* chroma_format_idc */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&value);
if (tmp != HANTRO_OK)
return(tmp);
if( tmp > 1 )
return(HANTRO_NOK);
pSeqParamSet->chromaFormatIdc = value;
if (pSeqParamSet->chromaFormatIdc == 0)
pSeqParamSet->monoChrome = 1;
/* residual_colour_transform_flag (skipped) */
/* bit_depth_luma_minus8 */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&value);
if (tmp != HANTRO_OK)
return(tmp);
/* bit_depth_chroma_minus8 */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&value);
if (tmp != HANTRO_OK)
return(tmp);
/* qpprime_y_zero_transform_bypass_flag */
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
/* seq_scaling_matrix_present_flag */
tmp = h264bsdGetBits(pStrmData, 1);
#ifdef ASIC_TRACE_SUPPORT
if (tmp)
trace_h264DecodingTools.scalingMatrixPresentType.seq = 1;
#endif
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pSeqParamSet->scalingMatrixPresentFlag = tmp;
if (tmp)
{
for (i = 0; i < 8; i++)
{
tmp = h264bsdGetBits(pStrmData, 1);
pSeqParamSet->scalingListPresent[i] = tmp;
if (tmp)
{
ScalingList(pSeqParamSet->scalingList, pStrmData, i);
}
else
FallbackScaling(pSeqParamSet->scalingList, i);
}
}
}
else
{
pSeqParamSet->chromaFormatIdc = 1; /* 4:2:0 */
pSeqParamSet->scalingMatrixPresentFlag = 0;
}
/* log2_max_frame_num_minus4 */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
{
ERROR_PRINT("log2_max_frame_num_minus4");
return(tmp);
}
if (value > 12)
{
ERROR_PRINT("log2_max_frame_num_minus4");
return(HANTRO_NOK);
}
/* maxFrameNum = 2^(log2_max_frame_num_minus4 + 4) */
pSeqParamSet->maxFrameNum = 1 << (value+4);
/* valid POC types are 0, 1 and 2 */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
{
ERROR_PRINT("pic_order_cnt_type");
return(tmp);
}
if (value > 2)
{
ERROR_PRINT("pic_order_cnt_type");
return(HANTRO_NOK);
}
pSeqParamSet->picOrderCntType = value;
if (pSeqParamSet->picOrderCntType == 0)
{
/* log2_max_pic_order_cnt_lsb_minus4 */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
if (value > 12)
{
ERROR_PRINT("log2_max_pic_order_cnt_lsb_minus4");
return(HANTRO_NOK);
}
/* maxPicOrderCntLsb = 2^(log2_max_pic_order_cnt_lsb_minus4 + 4) */
pSeqParamSet->maxPicOrderCntLsb = 1 << (value+4);
}
else if (pSeqParamSet->picOrderCntType == 1)
{
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pSeqParamSet->deltaPicOrderAlwaysZeroFlag = (tmp == 1) ? HANTRO_TRUE : HANTRO_FALSE;
tmp = h264bsdDecodeExpGolombSigned(pStrmData,
&pSeqParamSet->offsetForNonRefPic);
if (tmp != HANTRO_OK)
return(tmp);
tmp = h264bsdDecodeExpGolombSigned(pStrmData,
&pSeqParamSet->offsetForTopToBottomField);
if (tmp != HANTRO_OK)
return(tmp);
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pSeqParamSet->numRefFramesInPicOrderCntCycle);
if (tmp != HANTRO_OK)
return(tmp);
if (pSeqParamSet->numRefFramesInPicOrderCntCycle > 255)
{
ERROR_PRINT("num_ref_frames_in_pic_order_cnt_cycle");
return(HANTRO_NOK);
}
if (pSeqParamSet->numRefFramesInPicOrderCntCycle)
{
/* NOTE: This has to be freed somewhere! */
ALLOCATE(pSeqParamSet->offsetForRefFrame,
pSeqParamSet->numRefFramesInPicOrderCntCycle, i32);
if (pSeqParamSet->offsetForRefFrame == NULL)
return(MEMORY_ALLOCATION_ERROR);
for (i = 0; i < pSeqParamSet->numRefFramesInPicOrderCntCycle; i++)
{
tmp = h264bsdDecodeExpGolombSigned(pStrmData,
pSeqParamSet->offsetForRefFrame + i);
if (tmp != HANTRO_OK)
return(tmp);
}
}
else
{
pSeqParamSet->offsetForRefFrame = NULL;
}
}
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pSeqParamSet->numRefFrames);
if (tmp != HANTRO_OK)
return(tmp);
if (pSeqParamSet->numRefFrames > MAX_NUM_REF_PICS ||
/* max num ref frames in mvc stereo high profile is actually 8, but
* here we just check that it is less than 15 (base 15 used for
* inter view reference picture) */
(mvcFlag && (pSeqParamSet->numRefFrames > 15)))
{
ERROR_PRINT("num_ref_frames");
return(HANTRO_NOK);
}
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pSeqParamSet->gapsInFrameNumValueAllowedFlag = (tmp == 1) ? HANTRO_TRUE : HANTRO_FALSE;
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
pSeqParamSet->picWidthInMbs = value + 1;
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
pSeqParamSet->picHeightInMbs = value + 1;
/* frame_mbs_only_flag, shall be 1 for baseline profile */
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pSeqParamSet->frameMbsOnlyFlag = tmp;
if (!pSeqParamSet->frameMbsOnlyFlag)
{
pSeqParamSet->mbAdaptiveFrameFieldFlag =
h264bsdGetBits(pStrmData, 1);
pSeqParamSet->picHeightInMbs *= 2;
}
/* direct_8x8_inference_flag */
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pSeqParamSet->direct8x8InferenceFlag = tmp;
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pSeqParamSet->frameCroppingFlag = (tmp == 1) ? HANTRO_TRUE : HANTRO_FALSE;
#ifdef ASIC_TRACE_SUPPORT
if (tmp)
trace_h264DecodingTools.imageCropping = 1;
#endif
if (pSeqParamSet->frameCroppingFlag)
{
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pSeqParamSet->frameCropLeftOffset);
if (tmp != HANTRO_OK)
return(tmp);
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pSeqParamSet->frameCropRightOffset);
if (tmp != HANTRO_OK)
return(tmp);
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pSeqParamSet->frameCropTopOffset);
if (tmp != HANTRO_OK)
return(tmp);
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pSeqParamSet->frameCropBottomOffset);
if (tmp != HANTRO_OK)
return(tmp);
/* check that frame cropping params are valid, parameters shall
* specify non-negative area within the original picture */
if ( ( (i32)pSeqParamSet->frameCropLeftOffset >
( 8 * (i32)pSeqParamSet->picWidthInMbs -
((i32)pSeqParamSet->frameCropRightOffset + 1) ) ) ||
( (i32)pSeqParamSet->frameCropTopOffset >
( 8 * (i32)pSeqParamSet->picHeightInMbs -
((i32)pSeqParamSet->frameCropBottomOffset + 1) ) ) )
{
ERROR_PRINT("frame_cropping");
return(HANTRO_NOK);
}
}
/* check that image dimensions and levelIdc match */
tmp = pSeqParamSet->picWidthInMbs * pSeqParamSet->picHeightInMbs;
value = GetDpbSize(tmp, pSeqParamSet->levelIdc);
if (value == INVALID_DPB_SIZE || pSeqParamSet->numRefFrames > value)
{
DEBUG_PRINT(("WARNING! Invalid DPB size based on SPS Level!\n"));
DEBUG_PRINT(("WARNING! Using num_ref_frames =%d for DPB size!\n",
pSeqParamSet->numRefFrames));
/* set maxDpbSize to 1 if numRefFrames is zero */
value = pSeqParamSet->numRefFrames ? pSeqParamSet->numRefFrames : 1;
}
pSeqParamSet->maxDpbSize = value;
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pSeqParamSet->vuiParametersPresentFlag = (tmp == 1) ? HANTRO_TRUE : HANTRO_FALSE;
/* VUI */
if (pSeqParamSet->vuiParametersPresentFlag)
{
ALLOCATE(pSeqParamSet->vuiParameters, 1, vuiParameters_t);
if (pSeqParamSet->vuiParameters == NULL)
return(MEMORY_ALLOCATION_ERROR);
tmp = h264bsdDecodeVuiParameters(pStrmData,
pSeqParamSet->vuiParameters);
if (tmp == END_OF_STREAM)
{
pSeqParamSet->vuiParameters->bitstreamRestrictionFlag |= 1;
pSeqParamSet->vuiParameters->maxDecFrameBuffering =
pSeqParamSet->maxDpbSize;
}
else if (tmp != HANTRO_OK)
return(tmp);
/* check numReorderFrames and maxDecFrameBuffering */
if (pSeqParamSet->vuiParameters->bitstreamRestrictionFlag)
{
if (pSeqParamSet->vuiParameters->numReorderFrames >
pSeqParamSet->vuiParameters->maxDecFrameBuffering ||
pSeqParamSet->vuiParameters->maxDecFrameBuffering <
pSeqParamSet->numRefFrames ||
pSeqParamSet->vuiParameters->maxDecFrameBuffering >
pSeqParamSet->maxDpbSize)
{
ERROR_PRINT("Not valid vuiParameters->bitstreamRestriction");
return(HANTRO_NOK);
}
/* standard says that "the sequence shall not require a DPB with
* size of more than max(1, maxDecFrameBuffering) */
pSeqParamSet->maxDpbSize =
MAX(1, pSeqParamSet->vuiParameters->maxDecFrameBuffering);
}
}
if (mvcFlag)
{
if (pSeqParamSet->profileIdc == 118 || pSeqParamSet->profileIdc == 128)
{
/* bit_equal_to_one */
tmp = h264bsdGetBits(pStrmData, 1);
tmp = DecodeMvcExtension(pStrmData, pSeqParamSet);
if (tmp != HANTRO_OK)
return tmp;
}
/* additional_extension2_flag, shall be zero */
tmp = h264bsdGetBits(pStrmData, 1);
/* TODO: skip rest of the stuff if equal to 1 */
}
tmp = h264bsdRbspTrailingBits(pStrmData);
/* ignore possible errors in trailing bits of parameters sets */
return(HANTRO_OK);
}
u32 h264bsdDecodePicParamSet(strmData_t *pStrmData, picParamSet_t *pPicParamSet)
{
/* Variables */
u32 tmp, i, value;
i32 itmp;
/* Code */
ASSERT(pStrmData);
ASSERT(pPicParamSet);
H264SwDecMemset(pPicParamSet, 0, sizeof(picParamSet_t));
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pPicParamSet->picParameterSetId);
if (tmp != HANTRO_OK)
return(tmp);
if (pPicParamSet->picParameterSetId >= MAX_NUM_PIC_PARAM_SETS)
{
EPRINT("pic_parameter_set_id");
return(HANTRO_NOK);
}
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pPicParamSet->seqParameterSetId);
if (tmp != HANTRO_OK)
return(tmp);
if (pPicParamSet->seqParameterSetId >= MAX_NUM_SEQ_PARAM_SETS)
{
EPRINT("seq_param_set_id");
return(HANTRO_NOK);
}
/* entropy_coding_mode_flag, shall be 0 for baseline profile */
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp)
{
EPRINT("entropy_coding_mode_flag");
return(HANTRO_NOK);
}
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pPicParamSet->picOrderPresentFlag = (tmp == 1) ? HANTRO_TRUE : HANTRO_FALSE;
/* num_slice_groups_minus1 */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
pPicParamSet->numSliceGroups = value + 1;
if (pPicParamSet->numSliceGroups > MAX_NUM_SLICE_GROUPS)
{
EPRINT("num_slice_groups_minus1");
return(HANTRO_NOK);
}
/* decode slice group mapping information if more than one slice groups */
if (pPicParamSet->numSliceGroups > 1)
{
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pPicParamSet->sliceGroupMapType);
if (tmp != HANTRO_OK)
return(tmp);
if (pPicParamSet->sliceGroupMapType > 6)
{
EPRINT("slice_group_map_type");
return(HANTRO_NOK);
}
if (pPicParamSet->sliceGroupMapType == 0)
{
ALLOCATE(pPicParamSet->runLength,
pPicParamSet->numSliceGroups, u32);
if (pPicParamSet->runLength == NULL)
return(MEMORY_ALLOCATION_ERROR);
for (i = 0; i < pPicParamSet->numSliceGroups; i++)
{
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
pPicParamSet->runLength[i] = value+1;
/* param values checked in CheckPps() */
}
}
else if (pPicParamSet->sliceGroupMapType == 2)
{
ALLOCATE(pPicParamSet->topLeft,
pPicParamSet->numSliceGroups - 1, u32);
ALLOCATE(pPicParamSet->bottomRight,
pPicParamSet->numSliceGroups - 1, u32);
if (pPicParamSet->topLeft == NULL ||
pPicParamSet->bottomRight == NULL)
return(MEMORY_ALLOCATION_ERROR);
for (i = 0; i < pPicParamSet->numSliceGroups - 1; i++)
{
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
pPicParamSet->topLeft[i] = value;
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
pPicParamSet->bottomRight[i] = value;
/* param values checked in CheckPps() */
}
}
else if ( (pPicParamSet->sliceGroupMapType == 3) ||
(pPicParamSet->sliceGroupMapType == 4) ||
(pPicParamSet->sliceGroupMapType == 5) )
{
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pPicParamSet->sliceGroupChangeDirectionFlag =
(tmp == 1) ? HANTRO_TRUE : HANTRO_FALSE;
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
pPicParamSet->sliceGroupChangeRate = value + 1;
/* param value checked in CheckPps() */
}
else if (pPicParamSet->sliceGroupMapType == 6)
{
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
pPicParamSet->picSizeInMapUnits = value + 1;
ALLOCATE(pPicParamSet->sliceGroupId,
pPicParamSet->picSizeInMapUnits, u32);
if (pPicParamSet->sliceGroupId == NULL)
return(MEMORY_ALLOCATION_ERROR);
/* determine number of bits needed to represent range
* [0, numSliceGroups) */
tmp = CeilLog2NumSliceGroups[pPicParamSet->numSliceGroups-1];
for (i = 0; i < pPicParamSet->picSizeInMapUnits; i++)
{
pPicParamSet->sliceGroupId[i] = h264bsdGetBits(pStrmData, tmp);
if ( pPicParamSet->sliceGroupId[i] >=
pPicParamSet->numSliceGroups )
{
EPRINT("slice_group_id");
return(HANTRO_NOK);
}
}
}
}
/* num_ref_idx_l0_active_minus1 */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
if (value > 31)
{
EPRINT("num_ref_idx_l0_active_minus1");
return(HANTRO_NOK);
}
pPicParamSet->numRefIdxL0Active = value + 1;
/* num_ref_idx_l1_active_minus1 */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
if (value > 31)
{
EPRINT("num_ref_idx_l1_active_minus1");
return(HANTRO_NOK);
}
/* weighted_pred_flag, this shall be 0 for baseline profile */
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp)
{
EPRINT("weighted_pred_flag");
return(HANTRO_NOK);
}
/* weighted_bipred_idc */
tmp = h264bsdGetBits(pStrmData, 2);
if (tmp > 2)
{
EPRINT("weighted_bipred_idc");
return(HANTRO_NOK);
}
/* pic_init_qp_minus26 */
tmp = h264bsdDecodeExpGolombSigned(pStrmData, &itmp);
if (tmp != HANTRO_OK)
return(tmp);
if ((itmp < -26) || (itmp > 25))
{
EPRINT("pic_init_qp_minus26");
return(HANTRO_NOK);
}
pPicParamSet->picInitQp = (u32)(itmp + 26);
/* pic_init_qs_minus26 */
tmp = h264bsdDecodeExpGolombSigned(pStrmData, &itmp);
if (tmp != HANTRO_OK)
return(tmp);
if ((itmp < -26) || (itmp > 25))
{
EPRINT("pic_init_qs_minus26");
return(HANTRO_NOK);
}
tmp = h264bsdDecodeExpGolombSigned(pStrmData, &itmp);
if (tmp != HANTRO_OK)
return(tmp);
if ((itmp < -12) || (itmp > 12))
{
EPRINT("chroma_qp_index_offset");
return(HANTRO_NOK);
}
pPicParamSet->chromaQpIndexOffset = itmp;
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pPicParamSet->deblockingFilterControlPresentFlag =
(tmp == 1) ? HANTRO_TRUE : HANTRO_FALSE;
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pPicParamSet->constrainedIntraPredFlag = (tmp == 1) ?
HANTRO_TRUE : HANTRO_FALSE;
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pPicParamSet->redundantPicCntPresentFlag = (tmp == 1) ?
HANTRO_TRUE : HANTRO_FALSE;
tmp = h264bsdRbspTrailingBits(pStrmData);
/* ignore possible errors in trailing bits of parameters sets */
return(HANTRO_OK);
}
u32 h264bsdDecodeMacroblockLayer(strmData_t *pStrmData,
macroblockLayer_t *pMbLayer, mbStorage_t *pMb, u32 sliceType,
u32 numRefIdxActive)
{
/* Variables */
u32 tmp, i, value;
i32 itmp;
mbPartPredMode_e partMode;
/* Code */
ASSERT(pStrmData);
ASSERT(pMbLayer);
#ifdef H264DEC_NEON
h264bsdClearMbLayer(pMbLayer, ((sizeof(macroblockLayer_t) + 63) & ~0x3F));
#else
H264SwDecMemset(pMbLayer, 0, sizeof(macroblockLayer_t));
#endif
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (IS_I_SLICE(sliceType))
{
if ((value + 6) > 31 || tmp != HANTRO_OK)
return(HANTRO_NOK);
pMbLayer->mbType = (mbType_e)(value + 6);
}
else
{
if ((value + 1) > 31 || tmp != HANTRO_OK)
return(HANTRO_NOK);
pMbLayer->mbType = (mbType_e)(value + 1);
}
if (pMbLayer->mbType == I_PCM)
{
i32 *level;
while( !h264bsdIsByteAligned(pStrmData) )
{
/* pcm_alignment_zero_bit */
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp)
return(HANTRO_NOK);
}
level = pMbLayer->residual.level[0];
for (i = 0; i < 384; i++)
{
value = h264bsdGetBits(pStrmData, 8);
if (value == END_OF_STREAM)
return(HANTRO_NOK);
*level++ = (i32)value;
}
}
else
{
partMode = h264bsdMbPartPredMode(pMbLayer->mbType);
if ( (partMode == PRED_MODE_INTER) &&
(h264bsdNumMbPart(pMbLayer->mbType) == 4) )
{
tmp = DecodeSubMbPred(pStrmData, &pMbLayer->subMbPred,
pMbLayer->mbType, numRefIdxActive);
}
else
{
tmp = DecodeMbPred(pStrmData, &pMbLayer->mbPred,
pMbLayer->mbType, numRefIdxActive);
}
if (tmp != HANTRO_OK)
return(tmp);
if (partMode != PRED_MODE_INTRA16x16)
{
tmp = h264bsdDecodeExpGolombMapped(pStrmData, &value,
(u32)(partMode == PRED_MODE_INTRA4x4));
if (tmp != HANTRO_OK)
return(tmp);
pMbLayer->codedBlockPattern = value;
}
else
{
pMbLayer->codedBlockPattern = CbpIntra16x16(pMbLayer->mbType);
}
if ( pMbLayer->codedBlockPattern ||
(partMode == PRED_MODE_INTRA16x16) )
{
tmp = h264bsdDecodeExpGolombSigned(pStrmData, &itmp);
if (tmp != HANTRO_OK || (itmp < -26) || (itmp > 25) )
return(HANTRO_NOK);
pMbLayer->mbQpDelta = itmp;
tmp = DecodeResidual(pStrmData, &pMbLayer->residual, pMb,
pMbLayer->mbType, pMbLayer->codedBlockPattern);
pStrmData->strmBuffReadBits =
(u32)(pStrmData->pStrmCurrPos - pStrmData->pStrmBuffStart) * 8 +
pStrmData->bitPosInWord;
if (tmp != HANTRO_OK)
return(tmp);
}
}
return(HANTRO_OK);
}
u32 h264bsdDecodeSeqParamSet(strmData_t *pStrmData, seqParamSet_t *pSeqParamSet)
{
/* Variables */
u32 tmp, i, value;
/* Code */
ASSERT(pStrmData);
ASSERT(pSeqParamSet);
memset(pSeqParamSet, 0, sizeof(seqParamSet_t));
/* profile_idc */
tmp = h264bsdGetBits(pStrmData, 8);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
if (tmp != 66)
{
DEBUG(("NOT BASELINE PROFILE %d\n", tmp));
}
pSeqParamSet->profileIdc = tmp;
/* constrained_set0_flag */
tmp = h264bsdGetBits(pStrmData, 1);
/* constrained_set1_flag */
tmp = h264bsdGetBits(pStrmData, 1);
/* constrained_set2_flag */
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
/* reserved_zero_5bits, values of these bits shall be ignored */
tmp = h264bsdGetBits(pStrmData, 5);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
tmp = h264bsdGetBits(pStrmData, 8);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pSeqParamSet->levelIdc = tmp;
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pSeqParamSet->seqParameterSetId);
if (tmp != HANTRO_OK)
return(tmp);
if (pSeqParamSet->seqParameterSetId >= MAX_NUM_SEQ_PARAM_SETS)
{
EPRINT("seq_param_set_id");
return(HANTRO_NOK);
}
/* log2_max_frame_num_minus4 */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
if (value > 12)
{
EPRINT("log2_max_frame_num_minus4");
return(HANTRO_NOK);
}
/* maxFrameNum = 2^(log2_max_frame_num_minus4 + 4) */
pSeqParamSet->maxFrameNum = 1 << (value+4);
/* valid POC types are 0, 1 and 2 */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
if (value > 2)
{
EPRINT("pic_order_cnt_type");
return(HANTRO_NOK);
}
pSeqParamSet->picOrderCntType = value;
if (pSeqParamSet->picOrderCntType == 0)
{
/* log2_max_pic_order_cnt_lsb_minus4 */
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
if (value > 12)
{
EPRINT("log2_max_pic_order_cnt_lsb_minus4");
return(HANTRO_NOK);
}
/* maxPicOrderCntLsb = 2^(log2_max_pic_order_cnt_lsb_minus4 + 4) */
pSeqParamSet->maxPicOrderCntLsb = 1 << (value+4);
}
else if (pSeqParamSet->picOrderCntType == 1)
{
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pSeqParamSet->deltaPicOrderAlwaysZeroFlag = (tmp == 1) ?
HANTRO_TRUE : HANTRO_FALSE;
tmp = h264bsdDecodeExpGolombSigned(pStrmData,
&pSeqParamSet->offsetForNonRefPic);
if (tmp != HANTRO_OK)
return(tmp);
tmp = h264bsdDecodeExpGolombSigned(pStrmData,
&pSeqParamSet->offsetForTopToBottomField);
if (tmp != HANTRO_OK)
return(tmp);
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pSeqParamSet->numRefFramesInPicOrderCntCycle);
if (tmp != HANTRO_OK)
return(tmp);
if (pSeqParamSet->numRefFramesInPicOrderCntCycle > 255)
{
EPRINT("num_ref_frames_in_pic_order_cnt_cycle");
return(HANTRO_NOK);
}
if (pSeqParamSet->numRefFramesInPicOrderCntCycle)
{
/* NOTE: This has to be freed somewhere! */
ALLOCATE(pSeqParamSet->offsetForRefFrame,
pSeqParamSet->numRefFramesInPicOrderCntCycle, i32);
if (pSeqParamSet->offsetForRefFrame == NULL)
return(MEMORY_ALLOCATION_ERROR);
for (i = 0; i < pSeqParamSet->numRefFramesInPicOrderCntCycle; i++)
{
tmp = h264bsdDecodeExpGolombSigned(pStrmData,
pSeqParamSet->offsetForRefFrame + i);
if (tmp != HANTRO_OK)
return(tmp);
}
}
else
{
pSeqParamSet->offsetForRefFrame = NULL;
}
}
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pSeqParamSet->numRefFrames);
if (tmp != HANTRO_OK)
return(tmp);
if (pSeqParamSet->numRefFrames > MAX_NUM_REF_PICS)
{
EPRINT("num_ref_frames");
return(HANTRO_NOK);
}
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pSeqParamSet->gapsInFrameNumValueAllowedFlag = (tmp == 1) ?
HANTRO_TRUE : HANTRO_FALSE;
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
pSeqParamSet->picWidthInMbs = value + 1;
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if (tmp != HANTRO_OK)
return(tmp);
pSeqParamSet->picHeightInMbs = value + 1;
/* frame_mbs_only_flag, shall be 1 for baseline profile */
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
if (!tmp)
{
EPRINT("frame_mbs_only_flag");
return(HANTRO_NOK);
}
/* direct_8x8_inference_flag */
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pSeqParamSet->frameCroppingFlag = (tmp == 1) ? HANTRO_TRUE : HANTRO_FALSE;
if (pSeqParamSet->frameCroppingFlag)
{
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pSeqParamSet->frameCropLeftOffset);
if (tmp != HANTRO_OK)
return(tmp);
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pSeqParamSet->frameCropRightOffset);
if (tmp != HANTRO_OK)
return(tmp);
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pSeqParamSet->frameCropTopOffset);
if (tmp != HANTRO_OK)
return(tmp);
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData,
&pSeqParamSet->frameCropBottomOffset);
if (tmp != HANTRO_OK)
return(tmp);
/* check that frame cropping params are valid, parameters shall
* specify non-negative area within the original picture */
if ( ( (i32)pSeqParamSet->frameCropLeftOffset >
( 8 * (i32)pSeqParamSet->picWidthInMbs -
((i32)pSeqParamSet->frameCropRightOffset + 1) ) ) ||
( (i32)pSeqParamSet->frameCropTopOffset >
( 8 * (i32)pSeqParamSet->picHeightInMbs -
((i32)pSeqParamSet->frameCropBottomOffset + 1) ) ) )
{
EPRINT("frame_cropping");
return(HANTRO_NOK);
}
}
/* check that image dimensions and levelIdc match */
tmp = pSeqParamSet->picWidthInMbs * pSeqParamSet->picHeightInMbs;
value = GetDpbSize(tmp, pSeqParamSet->levelIdc);
if (value == INVALID_DPB_SIZE || pSeqParamSet->numRefFrames > value)
{
DEBUG(("WARNING! Invalid DPB size based on SPS Level!\n"));
DEBUG(("WARNING! Using num_ref_frames =%d for DPB size!\n",
pSeqParamSet->numRefFrames));
value = pSeqParamSet->numRefFrames;
}
pSeqParamSet->maxDpbSize = value;
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
pSeqParamSet->vuiParametersPresentFlag = (tmp == 1) ?
HANTRO_TRUE : HANTRO_FALSE;
/* VUI */
if (pSeqParamSet->vuiParametersPresentFlag)
{
ALLOCATE(pSeqParamSet->vuiParameters, 1, vuiParameters_t);
if (pSeqParamSet->vuiParameters == NULL)
return(MEMORY_ALLOCATION_ERROR);
tmp = h264bsdDecodeVuiParameters(pStrmData,
pSeqParamSet->vuiParameters);
if (tmp != HANTRO_OK)
return(tmp);
/* check numReorderFrames and maxDecFrameBuffering */
if (pSeqParamSet->vuiParameters->bitstreamRestrictionFlag)
{
if (pSeqParamSet->vuiParameters->numReorderFrames >
pSeqParamSet->vuiParameters->maxDecFrameBuffering ||
pSeqParamSet->vuiParameters->maxDecFrameBuffering <
pSeqParamSet->numRefFrames ||
pSeqParamSet->vuiParameters->maxDecFrameBuffering >
pSeqParamSet->maxDpbSize)
{
return(HANTRO_NOK);
}
/* standard says that "the sequence shall not require a DPB with
* size of more than max(1, maxDecFrameBuffering) */
pSeqParamSet->maxDpbSize =
MAX(1, pSeqParamSet->vuiParameters->maxDecFrameBuffering);
}
}
tmp = h264bsdRbspTrailingBits(pStrmData);
/* ignore possible errors in trailing bits of parameters sets */
return(HANTRO_OK);
}
u32 h264bsdDecodeMacroblockLayerCavlc(strmData_t * pStrmData,
macroblockLayer_t * pMbLayer,
mbStorage_t * pMb,
const sliceHeader_t * pSliceHdr )
{
/* Variables */
u32 tmp, i, value;
i32 itmp;
mbPartPredMode_e partMode;
/* Code */
ASSERT(pStrmData);
ASSERT(pMbLayer);
(void)DWLmemset(pMbLayer->residual.totalCoeff, 0, 24);
tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value);
if(IS_I_SLICE(pSliceHdr->sliceType))
{
if((value + 6) > 31 || tmp != HANTRO_OK)
return (HANTRO_NOK);
pMbLayer->mbType = (mbType_e) (value + 6);
}
else
{
if((value + 1) > 31 || tmp != HANTRO_OK)
return (HANTRO_NOK);
pMbLayer->mbType = (mbType_e) (value + 1);
}
if(pMbLayer->mbType == I_PCM)
{
u8 *level;
while(!h264bsdIsByteAligned(pStrmData))
{
/* pcm_alignment_zero_bit */
tmp = h264bsdGetBits(pStrmData, 1);
if(tmp)
return (HANTRO_NOK);
}
level = (u8 *) pMbLayer->residual.rlc;
for(i = 384; i > 0; i--)
{
value = h264bsdGetBits(pStrmData, 8);
if(value == END_OF_STREAM)
return (HANTRO_NOK);
*level++ = (u8) value;
}
}
else
{
partMode = h264bsdMbPartPredMode(pMbLayer->mbType);
if((partMode == PRED_MODE_INTER) &&
(h264bsdNumMbPart(pMbLayer->mbType) == 4))
{
tmp = DecodeSubMbPred(pStrmData, &pMbLayer->subMbPred,
pMbLayer->mbType,
pSliceHdr->numRefIdxL0Active,
pMb );
}
else
{
tmp = DecodeMbPred(pStrmData, &pMbLayer->mbPred,
pMbLayer->mbType, pSliceHdr->numRefIdxL0Active,
pMb );
}
if(tmp != HANTRO_OK)
return (tmp);
if(partMode != PRED_MODE_INTRA16x16)
{
tmp = h264bsdDecodeExpGolombMapped(pStrmData, &value,
(u32) (partMode ==
PRED_MODE_INTRA4x4));
if(tmp != HANTRO_OK)
return (tmp);
pMbLayer->codedBlockPattern = value;
}
else
{
pMbLayer->codedBlockPattern = CbpIntra16x16(pMbLayer->mbType);
}
if(pMbLayer->codedBlockPattern || (partMode == PRED_MODE_INTRA16x16))
{
tmp = h264bsdDecodeExpGolombSigned(pStrmData, &itmp);
if(tmp != HANTRO_OK ||
(u32) (itmp + 26) > 51U /*(itmp >= -26) || (itmp < 26) */ )
return (HANTRO_NOK);
pMbLayer->mbQpDelta = itmp;
tmp = DecodeResidual(pStrmData, pMbLayer, pMb);
if(tmp != HANTRO_OK)
return (tmp);
}
}
return (HANTRO_OK);
}
u32 h264bsdDecodeNalUnit(strmData_t *pStrmData, nalUnit_t *pNalUnit)
{
/* Variables */
u32 tmp;
/* Code */
ASSERT(pStrmData);
ASSERT(pNalUnit);
ASSERT(pStrmData->bitPosInWord == 0);
memset(pNalUnit, 0, sizeof(nalUnit_t));
/* forbidden_zero_bit (not checked to be zero, errors ignored) */
tmp = h264bsdGetBits(pStrmData, 1);
/* Assuming that NAL unit starts from byte boundary > don't have to check
* following 7 bits for END_OF_STREAM */
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
tmp = h264bsdGetBits(pStrmData, 2);
pNalUnit->nalRefIdc = tmp;
tmp = h264bsdGetBits(pStrmData, 5);
pNalUnit->nalUnitType = (nalUnitType_e)tmp;
DEBUG_PRINT(("NAL TYPE %d\n", tmp));
/* data partitioning NAL units not supported */
if ( (tmp == NAL_CODED_SLICE_DP_A) ||
(tmp == NAL_CODED_SLICE_DP_B) ||
(tmp == NAL_CODED_SLICE_DP_C) )
{
ERROR_PRINT(("DP slices not allowed!!!"));
return(HANTRO_NOK);
}
/* nal_ref_idc shall not be zero for these nal_unit_types */
if ( ( (tmp == NAL_SEQ_PARAM_SET) || (tmp == NAL_PIC_PARAM_SET) ||
(tmp == NAL_CODED_SLICE_IDR) ) && (pNalUnit->nalRefIdc == 0) )
{
ERROR_PRINT(("nal_ref_idc shall not be zero!!!"));
return(HANTRO_NOK);
}
/* nal_ref_idc shall be zero for these nal_unit_types */
else if ( ( (tmp == NAL_SEI) || (tmp == NAL_ACCESS_UNIT_DELIMITER) ||
(tmp == NAL_END_OF_SEQUENCE) || (tmp == NAL_END_OF_STREAM) ||
(tmp == NAL_FILLER_DATA) ) && (pNalUnit->nalRefIdc != 0) )
{
ERROR_PRINT(("nal_ref_idc shall be zero!!!"));
return(HANTRO_NOK);
}
if (pNalUnit->nalUnitType == NAL_PREFIX ||
pNalUnit->nalUnitType == NAL_CODED_SLICE_EXT)
{
/* svc_extension_flag */
tmp = h264bsdGetBits(pStrmData, 1);
tmp = h264bsdGetBits(pStrmData, 1);
pNalUnit->nonIdrFlag = tmp;
tmp = h264bsdGetBits(pStrmData, 6);
pNalUnit->priorityId = tmp;
tmp = h264bsdGetBits(pStrmData, 10);
pNalUnit->viewId = tmp;
tmp = h264bsdGetBits(pStrmData, 3);
pNalUnit->temporalId = tmp;
tmp = h264bsdGetBits(pStrmData, 1);
pNalUnit->anchorPicFlag = tmp;
tmp = h264bsdGetBits(pStrmData, 1);
pNalUnit->interViewFlag = tmp;
/* reserved_one_bit */
tmp = h264bsdGetBits(pStrmData, 1);
if (tmp == END_OF_STREAM)
return(HANTRO_NOK);
}
return(HANTRO_OK);
}
