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Diffstat (limited to 'media/libstagefright/codecs/on2/h264dec/source/h264bsd_storage.c')
| -rwxr-xr-x | media/libstagefright/codecs/on2/h264dec/source/h264bsd_storage.c | 888 |
1 files changed, 888 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/source/h264bsd_storage.c b/media/libstagefright/codecs/on2/h264dec/source/h264bsd_storage.c new file mode 100755 index 0000000..3234754 --- /dev/null +++ b/media/libstagefright/codecs/on2/h264dec/source/h264bsd_storage.c @@ -0,0 +1,888 @@ +/* + * Copyright (C) 2009 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/*------------------------------------------------------------------------------ + + Table of contents + + 1. Include headers + 2. External compiler flags + 3. Module defines + 4. Local function prototypes + 5. Functions + h264bsdInitStorage + h264bsdStoreSeqParamSet + h264bsdStorePicParamSet + h264bsdActivateParamSets + h264bsdResetStorage + h264bsdIsStartOfPicture + h264bsdIsEndOfPicture + h264bsdComputeSliceGroupMap + h264bsdCheckAccessUnitBoundary + CheckPps + h264bsdValidParamSets + +------------------------------------------------------------------------------*/ + +/*------------------------------------------------------------------------------ + 1. Include headers +------------------------------------------------------------------------------*/ + +#include "h264bsd_storage.h" +#include "h264bsd_util.h" +#include "h264bsd_neighbour.h" +#include "h264bsd_slice_group_map.h" +#include "h264bsd_dpb.h" +#include "h264bsd_nal_unit.h" +#include "h264bsd_slice_header.h" +#include "h264bsd_seq_param_set.h" + +/*------------------------------------------------------------------------------ + 2. External compiler flags +-------------------------------------------------------------------------------- + +-------------------------------------------------------------------------------- + 3. Module defines +------------------------------------------------------------------------------*/ + +/*------------------------------------------------------------------------------ + 4. Local function prototypes +------------------------------------------------------------------------------*/ + +static u32 CheckPps(picParamSet_t *pps, seqParamSet_t *sps); + +/*------------------------------------------------------------------------------ + + Function name: h264bsdInitStorage + + Functional description: + Initialize storage structure. Sets contents of the storage to '0' + except for the active parameter set ids, which are initialized + to invalid values. + + Inputs: + + Outputs: + pStorage initialized data stored here + + Returns: + none + +------------------------------------------------------------------------------*/ + +void h264bsdInitStorage(storage_t *pStorage) +{ + +/* Variables */ + +/* Code */ + + ASSERT(pStorage); + + H264SwDecMemset(pStorage, 0, sizeof(storage_t)); + + pStorage->activeSpsId = MAX_NUM_SEQ_PARAM_SETS; + pStorage->activePpsId = MAX_NUM_PIC_PARAM_SETS; + + pStorage->aub->firstCallFlag = HANTRO_TRUE; +} + +/*------------------------------------------------------------------------------ + + Function: h264bsdStoreSeqParamSet + + Functional description: + Store sequence parameter set into the storage. If active SPS is + overwritten -> check if contents changes and if it does, set + parameters to force reactivation of parameter sets + + Inputs: + pStorage pointer to storage structure + pSeqParamSet pointer to param set to be stored + + Outputs: + none + + Returns: + HANTRO_OK success + MEMORY_ALLOCATION_ERROR failure in memory allocation + + +------------------------------------------------------------------------------*/ + +u32 h264bsdStoreSeqParamSet(storage_t *pStorage, seqParamSet_t *pSeqParamSet) +{ + +/* Variables */ + + u32 id; + +/* Code */ + + ASSERT(pStorage); + ASSERT(pSeqParamSet); + ASSERT(pSeqParamSet->seqParameterSetId < MAX_NUM_SEQ_PARAM_SETS); + + id = pSeqParamSet->seqParameterSetId; + + /* seq parameter set with id not used before -> allocate memory */ + if (pStorage->sps[id] == NULL) + { + ALLOCATE(pStorage->sps[id], 1, seqParamSet_t); + if (pStorage->sps[id] == NULL) + return(MEMORY_ALLOCATION_ERROR); + } + /* sequence parameter set with id equal to id of active sps */ + else if (id == pStorage->activeSpsId) + { + /* if seq parameter set contents changes + * -> overwrite and re-activate when next IDR picture decoded + * ids of active param sets set to invalid values to force + * re-activation. Memories allocated for old sps freed + * otherwise free memeries allocated for just decoded sps and + * continue */ + if (h264bsdCompareSeqParamSets(pSeqParamSet, pStorage->activeSps) != 0) + { + FREE(pStorage->sps[id]->offsetForRefFrame); + FREE(pStorage->sps[id]->vuiParameters); + pStorage->activeSpsId = MAX_NUM_SEQ_PARAM_SETS + 1; + pStorage->activePpsId = MAX_NUM_PIC_PARAM_SETS + 1; + pStorage->activeSps = NULL; + pStorage->activePps = NULL; + } + else + { + FREE(pSeqParamSet->offsetForRefFrame); + FREE(pSeqParamSet->vuiParameters); + return(HANTRO_OK); + } + } + /* overwrite seq param set other than active one -> free memories + * allocated for old param set */ + else + { + FREE(pStorage->sps[id]->offsetForRefFrame); + FREE(pStorage->sps[id]->vuiParameters); + } + + *pStorage->sps[id] = *pSeqParamSet; + + return(HANTRO_OK); + +} + +/*------------------------------------------------------------------------------ + + Function: h264bsdStorePicParamSet + + Functional description: + Store picture parameter set into the storage. If active PPS is + overwritten -> check if active SPS changes and if it does -> set + parameters to force reactivation of parameter sets + + Inputs: + pStorage pointer to storage structure + pPicParamSet pointer to param set to be stored + + Outputs: + none + + Returns: + HANTRO_OK success + MEMORY_ALLOCATION_ERROR failure in memory allocation + +------------------------------------------------------------------------------*/ + +u32 h264bsdStorePicParamSet(storage_t *pStorage, picParamSet_t *pPicParamSet) +{ + +/* Variables */ + + u32 id; + +/* Code */ + + ASSERT(pStorage); + ASSERT(pPicParamSet); + ASSERT(pPicParamSet->picParameterSetId < MAX_NUM_PIC_PARAM_SETS); + ASSERT(pPicParamSet->seqParameterSetId < MAX_NUM_SEQ_PARAM_SETS); + + id = pPicParamSet->picParameterSetId; + + /* pic parameter set with id not used before -> allocate memory */ + if (pStorage->pps[id] == NULL) + { + ALLOCATE(pStorage->pps[id], 1, picParamSet_t); + if (pStorage->pps[id] == NULL) + return(MEMORY_ALLOCATION_ERROR); + } + /* picture parameter set with id equal to id of active pps */ + else if (id == pStorage->activePpsId) + { + /* check whether seq param set changes, force re-activation of + * param set if it does. Set activeSpsId to invalid value to + * accomplish this */ + if (pPicParamSet->seqParameterSetId != pStorage->activeSpsId) + { + pStorage->activePpsId = MAX_NUM_PIC_PARAM_SETS + 1; + } + /* free memories allocated for old param set */ + FREE(pStorage->pps[id]->runLength); + FREE(pStorage->pps[id]->topLeft); + FREE(pStorage->pps[id]->bottomRight); + FREE(pStorage->pps[id]->sliceGroupId); + } + /* overwrite pic param set other than active one -> free memories + * allocated for old param set */ + else + { + FREE(pStorage->pps[id]->runLength); + FREE(pStorage->pps[id]->topLeft); + FREE(pStorage->pps[id]->bottomRight); + FREE(pStorage->pps[id]->sliceGroupId); + } + + *pStorage->pps[id] = *pPicParamSet; + + return(HANTRO_OK); + +} + +/*------------------------------------------------------------------------------ + + Function: h264bsdActivateParamSets + + Functional description: + Activate certain SPS/PPS combination. This function shall be + called in the beginning of each picture. Picture parameter set + can be changed as wanted, but sequence parameter set may only be + changed when the starting picture is an IDR picture. + + When new SPS is activated the function allocates memory for + macroblock storages and slice group map and (re-)initializes the + decoded picture buffer. If this is not the first activation the old + allocations are freed and FreeDpb called before new allocations. + + Inputs: + pStorage pointer to storage data structure + ppsId identifies the PPS to be activated, SPS id obtained + from the PPS + isIdr flag to indicate if the picture is an IDR picture + + Outputs: + none + + Returns: + HANTRO_OK success + HANTRO_NOK non-existing or invalid param set combination, + trying to change SPS with non-IDR picture + MEMORY_ALLOCATION_ERROR failure in memory allocation + +------------------------------------------------------------------------------*/ + +u32 h264bsdActivateParamSets(storage_t *pStorage, u32 ppsId, u32 isIdr) +{ + +/* Variables */ + + u32 tmp; + u32 flag; + +/* Code */ + + ASSERT(pStorage); + ASSERT(ppsId < MAX_NUM_PIC_PARAM_SETS); + + /* check that pps and corresponding sps exist */ + if ( (pStorage->pps[ppsId] == NULL) || + (pStorage->sps[pStorage->pps[ppsId]->seqParameterSetId] == NULL) ) + { + return(HANTRO_NOK); + } + + /* check that pps parameters do not violate picture size constraints */ + tmp = CheckPps(pStorage->pps[ppsId], + pStorage->sps[pStorage->pps[ppsId]->seqParameterSetId]); + if (tmp != HANTRO_OK) + return(tmp); + + /* first activation part1 */ + if (pStorage->activePpsId == MAX_NUM_PIC_PARAM_SETS) + { + pStorage->activePpsId = ppsId; + pStorage->activePps = pStorage->pps[ppsId]; + pStorage->activeSpsId = pStorage->activePps->seqParameterSetId; + pStorage->activeSps = pStorage->sps[pStorage->activeSpsId]; + pStorage->picSizeInMbs = + pStorage->activeSps->picWidthInMbs * + pStorage->activeSps->picHeightInMbs; + + pStorage->currImage->width = pStorage->activeSps->picWidthInMbs; + pStorage->currImage->height = pStorage->activeSps->picHeightInMbs; + + pStorage->pendingActivation = HANTRO_TRUE; + } + /* first activation part2 */ + else if (pStorage->pendingActivation) + { + pStorage->pendingActivation = HANTRO_FALSE; + + FREE(pStorage->mb); + FREE(pStorage->sliceGroupMap); + + ALLOCATE(pStorage->mb, pStorage->picSizeInMbs, mbStorage_t); + ALLOCATE(pStorage->sliceGroupMap, pStorage->picSizeInMbs, u32); + if (pStorage->mb == NULL || pStorage->sliceGroupMap == NULL) + return(MEMORY_ALLOCATION_ERROR); + + H264SwDecMemset(pStorage->mb, 0, + pStorage->picSizeInMbs * sizeof(mbStorage_t)); + + h264bsdInitMbNeighbours(pStorage->mb, + pStorage->activeSps->picWidthInMbs, + pStorage->picSizeInMbs); + + /* dpb output reordering disabled if + * 1) application set noReordering flag + * 2) POC type equal to 2 + * 3) num_reorder_frames in vui equal to 0 */ + if ( pStorage->noReordering || + pStorage->activeSps->picOrderCntType == 2 || + (pStorage->activeSps->vuiParametersPresentFlag && + pStorage->activeSps->vuiParameters->bitstreamRestrictionFlag && + !pStorage->activeSps->vuiParameters->numReorderFrames) ) + flag = HANTRO_TRUE; + else + flag = HANTRO_FALSE; + + tmp = h264bsdResetDpb(pStorage->dpb, + pStorage->activeSps->picWidthInMbs * + pStorage->activeSps->picHeightInMbs, + pStorage->activeSps->maxDpbSize, + pStorage->activeSps->numRefFrames, + pStorage->activeSps->maxFrameNum, + flag); + if (tmp != HANTRO_OK) + return(tmp); + } + else if (ppsId != pStorage->activePpsId) + { + /* sequence parameter set shall not change but before an IDR picture */ + if (pStorage->pps[ppsId]->seqParameterSetId != pStorage->activeSpsId) + { + DEBUG(("SEQ PARAM SET CHANGING...\n")); + if (isIdr) + { + pStorage->activePpsId = ppsId; + pStorage->activePps = pStorage->pps[ppsId]; + pStorage->activeSpsId = pStorage->activePps->seqParameterSetId; + pStorage->activeSps = pStorage->sps[pStorage->activeSpsId]; + pStorage->picSizeInMbs = + pStorage->activeSps->picWidthInMbs * + pStorage->activeSps->picHeightInMbs; + + pStorage->currImage->width = pStorage->activeSps->picWidthInMbs; + pStorage->currImage->height = + pStorage->activeSps->picHeightInMbs; + + pStorage->pendingActivation = HANTRO_TRUE; + } + else + { + DEBUG(("TRYING TO CHANGE SPS IN NON-IDR SLICE\n")); + return(HANTRO_NOK); + } + } + else + { + pStorage->activePpsId = ppsId; + pStorage->activePps = pStorage->pps[ppsId]; + } + } + + return(HANTRO_OK); + +} + +/*------------------------------------------------------------------------------ + + Function: h264bsdResetStorage + + Functional description: + Reset contents of the storage. This should be called before + processing of new image is started. + + Inputs: + pStorage pointer to storage structure + + Outputs: + none + + Returns: + none + + +------------------------------------------------------------------------------*/ + +void h264bsdResetStorage(storage_t *pStorage) +{ + +/* Variables */ + + u32 i; + +/* Code */ + + ASSERT(pStorage); + + pStorage->slice->numDecodedMbs = 0; + pStorage->slice->sliceId = 0; + + for (i = 0; i < pStorage->picSizeInMbs; i++) + { + pStorage->mb[i].sliceId = 0; + pStorage->mb[i].decoded = 0; + } + +} + +/*------------------------------------------------------------------------------ + + Function: h264bsdIsStartOfPicture + + Functional description: + Determine if the decoder is in the start of a picture. This + information is needed to decide if h264bsdActivateParamSets and + h264bsdCheckGapsInFrameNum functions should be called. Function + considers that new picture is starting if no slice headers + have been successfully decoded for the current access unit. + + Inputs: + pStorage pointer to storage structure + + Outputs: + none + + Returns: + HANTRO_TRUE new picture is starting + HANTRO_FALSE not starting + +------------------------------------------------------------------------------*/ + +u32 h264bsdIsStartOfPicture(storage_t *pStorage) +{ + +/* Variables */ + + +/* Code */ + + if (pStorage->validSliceInAccessUnit == HANTRO_FALSE) + return(HANTRO_TRUE); + else + return(HANTRO_FALSE); + +} + +/*------------------------------------------------------------------------------ + + Function: h264bsdIsEndOfPicture + + Functional description: + Determine if the decoder is in the end of a picture. This + information is needed to determine when deblocking filtering + and reference picture marking processes should be performed. + + If the decoder is processing primary slices the return value + is determined by checking the value of numDecodedMbs in the + storage. On the other hand, if the decoder is processing + redundant slices the numDecodedMbs may not contain valid + informationa and each macroblock has to be checked separately. + + Inputs: + pStorage pointer to storage structure + + Outputs: + none + + Returns: + HANTRO_TRUE end of picture + HANTRO_FALSE noup + +------------------------------------------------------------------------------*/ + +u32 h264bsdIsEndOfPicture(storage_t *pStorage) +{ + +/* Variables */ + + u32 i, tmp; + +/* Code */ + + /* primary picture */ + if (!pStorage->sliceHeader[0].redundantPicCnt) + { + if (pStorage->slice->numDecodedMbs == pStorage->picSizeInMbs) + return(HANTRO_TRUE); + } + else + { + for (i = 0, tmp = 0; i < pStorage->picSizeInMbs; i++) + tmp += pStorage->mb[i].decoded ? 1 : 0; + + if (tmp == pStorage->picSizeInMbs) + return(HANTRO_TRUE); + } + + return(HANTRO_FALSE); + +} + +/*------------------------------------------------------------------------------ + + Function: h264bsdComputeSliceGroupMap + + Functional description: + Compute slice group map. Just call h264bsdDecodeSliceGroupMap with + appropriate parameters. + + Inputs: + pStorage pointer to storage structure + sliceGroupChangeCycle + + Outputs: + none + + Returns: + none + +------------------------------------------------------------------------------*/ + +void h264bsdComputeSliceGroupMap(storage_t *pStorage, u32 sliceGroupChangeCycle) +{ + +/* Variables */ + + +/* Code */ + + h264bsdDecodeSliceGroupMap(pStorage->sliceGroupMap, + pStorage->activePps, sliceGroupChangeCycle, + pStorage->activeSps->picWidthInMbs, + pStorage->activeSps->picHeightInMbs); + +} + +/*------------------------------------------------------------------------------ + + Function: h264bsdCheckAccessUnitBoundary + + Functional description: + Check if next NAL unit starts a new access unit. Following + conditions specify start of a new access unit: + + -NAL unit types 6-11, 13-18 (e.g. SPS, PPS) + + following conditions checked only for slice NAL units, values + compared to ones obtained from previous slice: + + -NAL unit type differs (slice / IDR slice) + -frame_num differs + -nal_ref_idc differs and one of the values is 0 + -POC information differs + -both are IDR slices and idr_pic_id differs + + Inputs: + strm pointer to stream data structure + nuNext pointer to NAL unit structure + storage pointer to storage structure + + Outputs: + accessUnitBoundaryFlag the result is stored here, TRUE for + access unit boundary, FALSE otherwise + + Returns: + HANTRO_OK success + HANTRO_NOK failure, invalid stream data + PARAM_SET_ERROR invalid param set usage + +------------------------------------------------------------------------------*/ + +u32 h264bsdCheckAccessUnitBoundary( + strmData_t *strm, + nalUnit_t *nuNext, + storage_t *storage, + u32 *accessUnitBoundaryFlag) +{ + +/* Variables */ + + u32 tmp, ppsId, frameNum, idrPicId, picOrderCntLsb; + i32 deltaPicOrderCntBottom, deltaPicOrderCnt[2]; + seqParamSet_t *sps; + picParamSet_t *pps; + +/* Code */ + + ASSERT(strm); + ASSERT(nuNext); + ASSERT(storage); + ASSERT(storage->sps); + ASSERT(storage->pps); + + /* initialize default output to FALSE */ + *accessUnitBoundaryFlag = HANTRO_FALSE; + + if ( ( (nuNext->nalUnitType > 5) && (nuNext->nalUnitType < 12) ) || + ( (nuNext->nalUnitType > 12) && (nuNext->nalUnitType <= 18) ) ) + { + *accessUnitBoundaryFlag = HANTRO_TRUE; + return(HANTRO_OK); + } + else if ( nuNext->nalUnitType != NAL_CODED_SLICE && + nuNext->nalUnitType != NAL_CODED_SLICE_IDR ) + { + return(HANTRO_OK); + } + + /* check if this is the very first call to this function */ + if (storage->aub->firstCallFlag) + { + *accessUnitBoundaryFlag = HANTRO_TRUE; + storage->aub->firstCallFlag = HANTRO_FALSE; + } + + /* get picture parameter set id */ + tmp = h264bsdCheckPpsId(strm, &ppsId); + if (tmp != HANTRO_OK) + return(tmp); + + /* store sps and pps in separate pointers just to make names shorter */ + pps = storage->pps[ppsId]; + if ( pps == NULL || storage->sps[pps->seqParameterSetId] == NULL || + (storage->activeSpsId != MAX_NUM_SEQ_PARAM_SETS && + pps->seqParameterSetId != storage->activeSpsId && + nuNext->nalUnitType != NAL_CODED_SLICE_IDR) ) + return(PARAM_SET_ERROR); + sps = storage->sps[pps->seqParameterSetId]; + + if (storage->aub->nuPrev->nalRefIdc != nuNext->nalRefIdc && + (storage->aub->nuPrev->nalRefIdc == 0 || nuNext->nalRefIdc == 0)) + *accessUnitBoundaryFlag = HANTRO_TRUE; + + if ((storage->aub->nuPrev->nalUnitType == NAL_CODED_SLICE_IDR && + nuNext->nalUnitType != NAL_CODED_SLICE_IDR) || + (storage->aub->nuPrev->nalUnitType != NAL_CODED_SLICE_IDR && + nuNext->nalUnitType == NAL_CODED_SLICE_IDR)) + *accessUnitBoundaryFlag = HANTRO_TRUE; + + tmp = h264bsdCheckFrameNum(strm, sps->maxFrameNum, &frameNum); + if (tmp != HANTRO_OK) + return(HANTRO_NOK); + + if (storage->aub->prevFrameNum != frameNum) + { + storage->aub->prevFrameNum = frameNum; + *accessUnitBoundaryFlag = HANTRO_TRUE; + } + + if (nuNext->nalUnitType == NAL_CODED_SLICE_IDR) + { + tmp = h264bsdCheckIdrPicId(strm, sps->maxFrameNum, nuNext->nalUnitType, + &idrPicId); + if (tmp != HANTRO_OK) + return(HANTRO_NOK); + + if (storage->aub->nuPrev->nalUnitType == NAL_CODED_SLICE_IDR && + storage->aub->prevIdrPicId != idrPicId) + *accessUnitBoundaryFlag = HANTRO_TRUE; + + storage->aub->prevIdrPicId = idrPicId; + } + + if (sps->picOrderCntType == 0) + { + tmp = h264bsdCheckPicOrderCntLsb(strm, sps, nuNext->nalUnitType, + &picOrderCntLsb); + if (tmp != HANTRO_OK) + return(HANTRO_NOK); + + if (storage->aub->prevPicOrderCntLsb != picOrderCntLsb) + { + storage->aub->prevPicOrderCntLsb = picOrderCntLsb; + *accessUnitBoundaryFlag = HANTRO_TRUE; + } + + if (pps->picOrderPresentFlag) + { + tmp = h264bsdCheckDeltaPicOrderCntBottom(strm, sps, + nuNext->nalUnitType, &deltaPicOrderCntBottom); + if (tmp != HANTRO_OK) + return(tmp); + + if (storage->aub->prevDeltaPicOrderCntBottom != + deltaPicOrderCntBottom) + { + storage->aub->prevDeltaPicOrderCntBottom = + deltaPicOrderCntBottom; + *accessUnitBoundaryFlag = HANTRO_TRUE; + } + } + } + else if (sps->picOrderCntType == 1 && !sps->deltaPicOrderAlwaysZeroFlag) + { + tmp = h264bsdCheckDeltaPicOrderCnt(strm, sps, nuNext->nalUnitType, + pps->picOrderPresentFlag, deltaPicOrderCnt); + if (tmp != HANTRO_OK) + return(tmp); + + if (storage->aub->prevDeltaPicOrderCnt[0] != deltaPicOrderCnt[0]) + { + storage->aub->prevDeltaPicOrderCnt[0] = deltaPicOrderCnt[0]; + *accessUnitBoundaryFlag = HANTRO_TRUE; + } + + if (pps->picOrderPresentFlag) + if (storage->aub->prevDeltaPicOrderCnt[1] != deltaPicOrderCnt[1]) + { + storage->aub->prevDeltaPicOrderCnt[1] = deltaPicOrderCnt[1]; + *accessUnitBoundaryFlag = HANTRO_TRUE; + } + } + + *storage->aub->nuPrev = *nuNext; + + return(HANTRO_OK); + +} + +/*------------------------------------------------------------------------------ + + Function: CheckPps + + Functional description: + Check picture parameter set. Contents of the picture parameter + set information that depends on the image dimensions is checked + against the dimensions in the sps. + + Inputs: + pps pointer to picture paramter set + sps pointer to sequence parameter set + + Outputs: + none + + Returns: + HANTRO_OK everything ok + HANTRO_NOK invalid data in picture parameter set + +------------------------------------------------------------------------------*/ +u32 CheckPps(picParamSet_t *pps, seqParamSet_t *sps) +{ + + u32 i; + u32 picSize; + + picSize = sps->picWidthInMbs * sps->picHeightInMbs; + + /* check slice group params */ + if (pps->numSliceGroups > 1) + { + if (pps->sliceGroupMapType == 0) + { + ASSERT(pps->runLength); + for (i = 0; i < pps->numSliceGroups; i++) + { + if (pps->runLength[i] > picSize) + return(HANTRO_NOK); + } + } + else if (pps->sliceGroupMapType == 2) + { + ASSERT(pps->topLeft); + ASSERT(pps->bottomRight); + for (i = 0; i < pps->numSliceGroups-1; i++) + { + if (pps->topLeft[i] > pps->bottomRight[i] || + pps->bottomRight[i] >= picSize) + return(HANTRO_NOK); + + if ( (pps->topLeft[i] % sps->picWidthInMbs) > + (pps->bottomRight[i] % sps->picWidthInMbs) ) + return(HANTRO_NOK); + } + } + else if (pps->sliceGroupMapType > 2 && pps->sliceGroupMapType < 6) + { + if (pps->sliceGroupChangeRate > picSize) + return(HANTRO_NOK); + } + else if (pps->sliceGroupMapType == 6 && + pps->picSizeInMapUnits < picSize) + return(HANTRO_NOK); + } + + return(HANTRO_OK); +} + +/*------------------------------------------------------------------------------ + + Function: h264bsdValidParamSets + + Functional description: + Check if any valid SPS/PPS combination exists in the storage. + Function tries each PPS in the buffer and checks if corresponding + SPS exists and calls CheckPps to determine if the PPS conforms + to image dimensions of the SPS. + + Inputs: + pStorage pointer to storage structure + + Outputs: + HANTRO_OK there is at least one valid combination + HANTRO_NOK no valid combinations found + + +------------------------------------------------------------------------------*/ + +u32 h264bsdValidParamSets(storage_t *pStorage) +{ + +/* Variables */ + + u32 i; + +/* Code */ + + ASSERT(pStorage); + + for (i = 0; i < MAX_NUM_PIC_PARAM_SETS; i++) + { + if ( pStorage->pps[i] && + pStorage->sps[pStorage->pps[i]->seqParameterSetId] && + CheckPps(pStorage->pps[i], + pStorage->sps[pStorage->pps[i]->seqParameterSetId]) == + HANTRO_OK) + { + return(HANTRO_OK); + } + } + + return(HANTRO_NOK); + +} + |