| /* |
| * 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. Module defines |
| 3. Data types |
| 4. Function prototypes |
| |
| ------------------------------------------------------------------------------*/ |
| |
| #ifndef H264SWDEC_SLICE_HEADER_H |
| #define H264SWDEC_SLICE_HEADER_H |
| |
| /*------------------------------------------------------------------------------ |
| 1. Include headers |
| ------------------------------------------------------------------------------*/ |
| |
| #include "basetype.h" |
| #include "h264bsd_stream.h" |
| #include "h264bsd_cfg.h" |
| #include "h264bsd_seq_param_set.h" |
| #include "h264bsd_pic_param_set.h" |
| #include "h264bsd_nal_unit.h" |
| |
| /*------------------------------------------------------------------------------ |
| 2. Module defines |
| ------------------------------------------------------------------------------*/ |
| |
| enum { |
| P_SLICE = 0, |
| I_SLICE = 2 |
| }; |
| |
| enum {NO_LONG_TERM_FRAME_INDICES = 0xFFFF}; |
| |
| /* macro to determine if slice is an inter slice, sliceTypes 0 and 5 */ |
| #define IS_P_SLICE(sliceType) (((sliceType) == P_SLICE) || \ |
| ((sliceType) == P_SLICE + 5)) |
| |
| /* macro to determine if slice is an intra slice, sliceTypes 2 and 7 */ |
| #define IS_I_SLICE(sliceType) (((sliceType) == I_SLICE) || \ |
| ((sliceType) == I_SLICE + 5)) |
| |
| /*------------------------------------------------------------------------------ |
| 3. Data types |
| ------------------------------------------------------------------------------*/ |
| |
| /* structure to store data of one reference picture list reordering operation */ |
| typedef struct |
| { |
| u32 reorderingOfPicNumsIdc; |
| u32 absDiffPicNum; |
| u32 longTermPicNum; |
| } refPicListReorderingOperation_t; |
| |
| /* structure to store reference picture list reordering operations */ |
| typedef struct |
| { |
| u32 refPicListReorderingFlagL0; |
| refPicListReorderingOperation_t command[MAX_NUM_REF_PICS+1]; |
| } refPicListReordering_t; |
| |
| /* structure to store data of one DPB memory management control operation */ |
| typedef struct |
| { |
| u32 memoryManagementControlOperation; |
| u32 differenceOfPicNums; |
| u32 longTermPicNum; |
| u32 longTermFrameIdx; |
| u32 maxLongTermFrameIdx; |
| } memoryManagementOperation_t; |
| |
| /* worst case scenario: all MAX_NUM_REF_PICS pictures in the buffer are |
| * short term pictures, each one of them is first marked as long term |
| * reference picture which is then marked as unused for reference. |
| * Additionally, max long-term frame index is set and current picture is |
| * marked as long term reference picture. Last position reserved for |
| * end memory_management_control_operation command */ |
| #define MAX_NUM_MMC_OPERATIONS (2*MAX_NUM_REF_PICS+2+1) |
| |
| /* structure to store decoded reference picture marking data */ |
| typedef struct |
| { |
| u32 noOutputOfPriorPicsFlag; |
| u32 longTermReferenceFlag; |
| u32 adaptiveRefPicMarkingModeFlag; |
| memoryManagementOperation_t operation[MAX_NUM_MMC_OPERATIONS]; |
| } decRefPicMarking_t; |
| |
| /* structure to store slice header data decoded from the stream */ |
| typedef struct |
| { |
| u32 firstMbInSlice; |
| u32 sliceType; |
| u32 picParameterSetId; |
| u32 frameNum; |
| u32 idrPicId; |
| u32 picOrderCntLsb; |
| i32 deltaPicOrderCntBottom; |
| i32 deltaPicOrderCnt[2]; |
| u32 redundantPicCnt; |
| u32 numRefIdxActiveOverrideFlag; |
| u32 numRefIdxL0Active; |
| i32 sliceQpDelta; |
| u32 disableDeblockingFilterIdc; |
| i32 sliceAlphaC0Offset; |
| i32 sliceBetaOffset; |
| u32 sliceGroupChangeCycle; |
| refPicListReordering_t refPicListReordering; |
| decRefPicMarking_t decRefPicMarking; |
| } sliceHeader_t; |
| |
| /*------------------------------------------------------------------------------ |
| 4. Function prototypes |
| ------------------------------------------------------------------------------*/ |
| |
| u32 h264bsdDecodeSliceHeader(strmData_t *pStrmData, |
| sliceHeader_t *pSliceHeader, |
| seqParamSet_t *pSeqParamSet, |
| picParamSet_t *pPicParamSet, |
| nalUnit_t *pNalUnit); |
| |
| u32 h264bsdCheckPpsId(strmData_t *pStrmData, u32 *ppsId); |
| |
| u32 h264bsdCheckFrameNum( |
| strmData_t *pStrmData, |
| u32 maxFrameNum, |
| u32 *frameNum); |
| |
| u32 h264bsdCheckIdrPicId( |
| strmData_t *pStrmData, |
| u32 maxFrameNum, |
| nalUnitType_e nalUnitType, |
| u32 *idrPicId); |
| |
| u32 h264bsdCheckPicOrderCntLsb( |
| strmData_t *pStrmData, |
| seqParamSet_t *pSeqParamSet, |
| nalUnitType_e nalUnitType, |
| u32 *picOrderCntLsb); |
| |
| u32 h264bsdCheckDeltaPicOrderCntBottom( |
| strmData_t *pStrmData, |
| seqParamSet_t *pSeqParamSet, |
| nalUnitType_e nalUnitType, |
| i32 *deltaPicOrderCntBottom); |
| |
| u32 h264bsdCheckDeltaPicOrderCnt( |
| strmData_t *pStrmData, |
| seqParamSet_t *pSeqParamSet, |
| nalUnitType_e nalUnitType, |
| u32 picOrderPresentFlag, |
| i32 *deltaPicOrderCnt); |
| |
| u32 h264bsdCheckRedundantPicCnt( |
| strmData_t *pStrmData, |
| seqParamSet_t *pSeqParamSet, |
| picParamSet_t *pPicParamSet, |
| nalUnitType_e nalUnitType, |
| u32 *redundantPicCnt); |
| |
| u32 h264bsdCheckPriorPicsFlag(u32 * noOutputOfPriorPicsFlag, |
| const strmData_t * pStrmData, |
| const seqParamSet_t * pSeqParamSet, |
| const picParamSet_t * pPicParamSet, |
| nalUnitType_e nalUnitType); |
| |
| #endif /* #ifdef H264SWDEC_SLICE_HEADER_H */ |
| |