aac5773f
 hucm
功能基本完成，接口待打磨
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/*
* AVC helper functions for muxers
* Copyright (c) 2008 Aurelien Jacobs <aurel@gnuage.org>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFORMAT_AVC_H
#define AVFORMAT_AVC_H
#include <stdint.h>
#include "avio.h"
int ff_avc_parse_nal_units(AVIOContext *s, const uint8_t *buf, int size);
int ff_avc_parse_nal_units_buf(const uint8_t *buf_in, uint8_t **buf, int *size);
int ff_isom_write_avcc(AVIOContext *pb, const uint8_t *data, int len);
const uint8_t *ff_avc_find_startcode(const uint8_t *p, const uint8_t *end);
int ff_avc_write_annexb_extradata(const uint8_t *in, uint8_t **buf, int *size);
const uint8_t *ff_avc_mp4_find_startcode(const uint8_t *start,
const uint8_t *end,
int nal_length_size);
uint8_t *ff_nal_unit_extract_rbsp(const uint8_t *src, uint32_t src_len,
uint32_t *dst_len, int header_len);
typedef struct {
uint8_t id;
uint8_t profile_idc;
uint8_t level_idc;
uint8_t constraint_set_flags;
uint8_t chroma_format_idc;
uint8_t bit_depth_luma;
uint8_t frame_mbs_only_flag;
AVRational sar;
} H264SequenceParameterSet;
H264SequenceParameterSet *ff_avc_decode_sps(const uint8_t *src, int src_len);
#endif /* AVFORMAT_AVC_H */
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