54 lines
2 KiB
C
54 lines
2 KiB
C
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/*
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* AVC helper functions for muxers
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* Copyright (c) 2008 Aurelien Jacobs <aurel@gnuage.org>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVFORMAT_AVC_H
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#define AVFORMAT_AVC_H
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#include <stdint.h>
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#include "avio.h"
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int ff_avc_parse_nal_units(AVIOContext *s, const uint8_t *buf, int size);
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int ff_avc_parse_nal_units_buf(const uint8_t *buf_in, uint8_t **buf, int *size);
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int ff_isom_write_avcc(AVIOContext *pb, const uint8_t *data, int len);
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const uint8_t *ff_avc_find_startcode(const uint8_t *p, const uint8_t *end);
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int ff_avc_write_annexb_extradata(const uint8_t *in, uint8_t **buf, int *size);
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const uint8_t *ff_avc_mp4_find_startcode(const uint8_t *start,
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const uint8_t *end,
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int nal_length_size);
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uint8_t *ff_nal_unit_extract_rbsp(const uint8_t *src, uint32_t src_len,
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uint32_t *dst_len, int header_len);
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typedef struct {
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uint8_t id;
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uint8_t profile_idc;
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uint8_t level_idc;
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uint8_t constraint_set_flags;
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uint8_t chroma_format_idc;
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uint8_t bit_depth_luma;
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uint8_t bit_depth_chroma;
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uint8_t frame_mbs_only_flag;
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AVRational sar;
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} H264SPS;
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int ff_avc_decode_sps(H264SPS *sps, const uint8_t *buf, int buf_size);
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#endif /* AVFORMAT_AVC_H */
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