1 files changed, 186 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/source/h264bsd_slice_header.h b/media/libstagefright/codecs/on2/h264dec/source/h264bsd_slice_header.h
new file mode 100755
index 0000000..198898a
--- /dev/null
+++ b/media/libstagefright/codecs/on2/h264dec/source/h264bsd_slice_header.h
@@ -0,0 +1,186 @@
+/*
+ * 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 */
+