xref: /frameworks/av/media/libstagefright/codecs/on2/h264dec/source/h264bsd_stream.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_STREAM_H
#define H264SWDEC_STREAM_H

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

#include "basetype.h"

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

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

typedef struct
{
    u8  *pStrmBuffStart;    /* pointer to start of stream buffer */
    u8  *pStrmCurrPos;      /* current read address in stream buffer */
    u32  bitPosInWord;      /* bit position in stream buffer byte */
    u32  strmBuffSize;      /* size of stream buffer (bytes) */
    u32  strmBuffReadBits;  /* number of bits read from stream buffer */
} strmData_t;

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

u32 h264bsdGetBits(strmData_t *pStrmData, u32 numBits);

u32 h264bsdShowBits32(strmData_t *pStrmData);

u32 h264bsdFlushBits(strmData_t *pStrmData, u32 numBits);

u32 h264bsdIsByteAligned(strmData_t *);

#endif /* #ifdef H264SWDEC_STREAM_H */