xref: /frameworks/base/media/libstagefright/codecs/on2/h264dec/source/h264bsd_pic_order_cnt.h

/*
 * 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_PIC_ORDER_CNT_H
#define H264SWDEC_PIC_ORDER_CNT_H

/*------------------------------------------------------------------------------
    1. Include headers
------------------------------------------------------------------------------*/

#include "basetype.h"
#include "h264bsd_seq_param_set.h"
#include "h264bsd_slice_header.h"
#include "h264bsd_nal_unit.h"

/*------------------------------------------------------------------------------
    2. Module defines
------------------------------------------------------------------------------*/


/*------------------------------------------------------------------------------
    3. Data types
------------------------------------------------------------------------------*/

/* structure to store information computed for previous picture, needed for
 * POC computation of a picture. Two first fields for POC type 0, last two
 * for types 1 and 2 */
typedef struct
{
    u32 prevPicOrderCntLsb;
    i32 prevPicOrderCntMsb;
    u32 prevFrameNum;
    u32 prevFrameNumOffset;
} pocStorage_t;

/*------------------------------------------------------------------------------
    4. Function prototypes
------------------------------------------------------------------------------*/

i32 h264bsdDecodePicOrderCnt(pocStorage_t *poc, seqParamSet_t *sps,
    sliceHeader_t *sliceHeader, nalUnit_t *pNalUnit);

#endif /* #ifdef H264SWDEC_PIC_ORDER_CNT_H */