1 files changed, 174 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/source/h264bsd_storage.h b/media/libstagefright/codecs/on2/h264dec/source/h264bsd_storage.h
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+++ b/media/libstagefright/codecs/on2/h264dec/source/h264bsd_storage.h
@@ -0,0 +1,174 @@
+/*
+ * 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_STORAGE_H
+#define H264SWDEC_STORAGE_H
+
+/*------------------------------------------------------------------------------
+    1. Include headers
+------------------------------------------------------------------------------*/
+
+#include "basetype.h"
+#include "h264bsd_cfg.h"
+#include "h264bsd_seq_param_set.h"
+#include "h264bsd_pic_param_set.h"
+#include "h264bsd_macroblock_layer.h"
+#include "h264bsd_nal_unit.h"
+#include "h264bsd_slice_header.h"
+#include "h264bsd_seq_param_set.h"
+#include "h264bsd_dpb.h"
+#include "h264bsd_pic_order_cnt.h"
+
+/*------------------------------------------------------------------------------
+    2. Module defines
+------------------------------------------------------------------------------*/
+
+/*------------------------------------------------------------------------------
+    3. Data types
+------------------------------------------------------------------------------*/
+
+typedef struct
+{
+    u32 sliceId;
+    u32 numDecodedMbs;
+    u32 lastMbAddr;
+} sliceStorage_t;
+
+/* structure to store parameters needed for access unit boundary checking */
+typedef struct
+{
+    nalUnit_t nuPrev[1];
+    u32 prevFrameNum;
+    u32 prevIdrPicId;
+    u32 prevPicOrderCntLsb;
+    i32 prevDeltaPicOrderCntBottom;
+    i32 prevDeltaPicOrderCnt[2];
+    u32 firstCallFlag;
+} aubCheck_t;
+
+/* storage data structure, holds all data of a decoder instance */
+typedef struct
+{
+    /* active paramet set ids and pointers */
+    u32 oldSpsId;
+    u32 activePpsId;
+    u32 activeSpsId;
+    picParamSet_t *activePps;
+    seqParamSet_t *activeSps;
+    seqParamSet_t *sps[MAX_NUM_SEQ_PARAM_SETS];
+    picParamSet_t *pps[MAX_NUM_PIC_PARAM_SETS];
+
+    /* current slice group map, recomputed for each slice */
+    u32 *sliceGroupMap;
+
+    u32 picSizeInMbs;
+
+    /* this flag is set after all macroblocks of a picture successfully
+     * decoded -> redundant slices not decoded */
+    u32 skipRedundantSlices;
+    u32 picStarted;
+
+    /* flag to indicate if current access unit contains any valid slices */
+    u32 validSliceInAccessUnit;
+
+    /* store information needed for handling of slice decoding */
+    sliceStorage_t slice[1];
+
+    /* number of concealed macroblocks in the current image */
+    u32 numConcealedMbs;
+
+    /* picId given by application */
+    u32 currentPicId;
+
+    /* macroblock specific storages, size determined by image dimensions */
+    mbStorage_t *mb;
+
+    /* flag to store noOutputReordering flag set by the application */
+    u32 noReordering;
+
+    /* DPB */
+    dpbStorage_t dpb[1];
+
+    /* structure to store picture order count related information */
+    pocStorage_t poc[1];
+
+    /* access unit boundary checking related data */
+    aubCheck_t aub[1];
+
+    /* current processed image */
+    image_t currImage[1];
+
+    /* last valid NAL unit header is stored here */
+    nalUnit_t prevNalUnit[1];
+
+    /* slice header, second structure used as a temporary storage while
+     * decoding slice header, first one stores last successfully decoded
+     * slice header */
+    sliceHeader_t sliceHeader[2];
+
+    /* fields to store old stream buffer pointers, needed when only part of
+     * a stream buffer is processed by h264bsdDecode function */
+    u32 prevBufNotFinished;
+    u8 *prevBufPointer;
+    u32 prevBytesConsumed;
+    strmData_t strm[1];
+
+    /* macroblock layer structure, there is no need to store this but it
+     * would have increased the stack size excessively and needed to be
+     * allocated from head -> easiest to put it here */
+    macroblockLayer_t *mbLayer;
+
+    u32 pendingActivation; /* Activate parameter sets after returning
+                              HEADERS_RDY to the user */
+    u32 intraConcealmentFlag; /* 0 gray picture for corrupted intra
+                                 1 previous frame used if available */
+} storage_t;
+
+/*------------------------------------------------------------------------------
+    4. Function prototypes
+------------------------------------------------------------------------------*/
+
+void h264bsdInitStorage(storage_t *pStorage);
+void h264bsdResetStorage(storage_t *pStorage);
+u32 h264bsdIsStartOfPicture(storage_t *pStorage);
+u32 h264bsdIsEndOfPicture(storage_t *pStorage);
+u32 h264bsdStoreSeqParamSet(storage_t *pStorage, seqParamSet_t *pSeqParamSet);
+u32 h264bsdStorePicParamSet(storage_t *pStorage, picParamSet_t *pPicParamSet);
+u32 h264bsdActivateParamSets(storage_t *pStorage, u32 ppsId, u32 isIdr);
+void h264bsdComputeSliceGroupMap(storage_t *pStorage,
+    u32 sliceGroupChangeCycle);
+
+u32 h264bsdCheckAccessUnitBoundary(
+  strmData_t *strm,
+  nalUnit_t *nuNext,
+  storage_t *storage,
+  u32 *accessUnitBoundaryFlag);
+
+u32 h264bsdValidParamSets(storage_t *pStorage);
+
+#endif /* #ifdef H264SWDEC_STORAGE_H */
+