FFmpeg
avc.h
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1 /*
2  * AVC helper functions for muxers
3  * Copyright (c) 2008 Aurelien Jacobs <aurel@gnuage.org>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #ifndef AVFORMAT_AVC_H
23 #define AVFORMAT_AVC_H
24 
25 #include <stdint.h>
26 #include "avio.h"
27 
28 int ff_avc_parse_nal_units(AVIOContext *s, const uint8_t *buf, int size);
29 int ff_avc_parse_nal_units_buf(const uint8_t *buf_in, uint8_t **buf, int *size);
30 int ff_isom_write_avcc(AVIOContext *pb, const uint8_t *data, int len);
31 const uint8_t *ff_avc_find_startcode(const uint8_t *p, const uint8_t *end);
32 int ff_avc_write_annexb_extradata(const uint8_t *in, uint8_t **buf, int *size);
33 const uint8_t *ff_avc_mp4_find_startcode(const uint8_t *start,
34  const uint8_t *end,
35  int nal_length_size);
36 uint8_t *ff_nal_unit_extract_rbsp(const uint8_t *src, uint32_t src_len,
37  uint32_t *dst_len, int header_len);
38 
39 typedef struct {
40  uint8_t id;
41  uint8_t profile_idc;
42  uint8_t level_idc;
45  uint8_t bit_depth_luma;
49 } H264SPS;
50 
51 int ff_avc_decode_sps(H264SPS *sps, const uint8_t *buf, int buf_size);
52 
53 #endif /* AVFORMAT_AVC_H */
H264SPS
Definition: avc.h:39
H264SPS::bit_depth_chroma
uint8_t bit_depth_chroma
Definition: avc.h:46
ff_avc_parse_nal_units_buf
int ff_avc_parse_nal_units_buf(const uint8_t *buf_in, uint8_t **buf, int *size)
Definition: avc.c:95
ff_avc_decode_sps
int ff_avc_decode_sps(H264SPS *sps, const uint8_t *buf, int buf_size)
Definition: avc.c:334
H264SPS::constraint_set_flags
uint8_t constraint_set_flags
Definition: avc.h:43
data
const char data[16]
Definition: mxf.c:142
H264SPS::bit_depth_luma
uint8_t bit_depth_luma
Definition: avc.h:45
H264SPS::profile_idc
uint8_t profile_idc
Definition: avc.h:41
s
#define s(width, name)
Definition: cbs_vp9.c:257
ff_avc_parse_nal_units
int ff_avc_parse_nal_units(AVIOContext *s, const uint8_t *buf, int size)
Definition: avc.c:73
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
src
#define src
Definition: vp8dsp.c:255
AVIOContext
Bytestream IO Context.
Definition: avio.h:161
size
int size
Definition: twinvq_data.h:10344
avio.h
ff_isom_write_avcc
int ff_isom_write_avcc(AVIOContext *pb, const uint8_t *data, int len)
Definition: avc.c:108
H264SPS::level_idc
uint8_t level_idc
Definition: avc.h:42
ff_avc_write_annexb_extradata
int ff_avc_write_annexb_extradata(const uint8_t *in, uint8_t **buf, int *size)
Definition: avc.c:221
ff_nal_unit_extract_rbsp
uint8_t * ff_nal_unit_extract_rbsp(const uint8_t *src, uint32_t src_len, uint32_t *dst_len, int header_len)
Definition: avc.c:269
H264SPS::chroma_format_idc
uint8_t chroma_format_idc
Definition: avc.h:44
H264SPS::id
uint8_t id
Definition: avc.h:40
len
int len
Definition: vorbis_enc_data.h:426
H264SPS::frame_mbs_only_flag
uint8_t frame_mbs_only_flag
Definition: avc.h:47
sps
static int FUNC() sps(CodedBitstreamContext *ctx, RWContext *rw, H264RawSPS *current)
Definition: cbs_h264_syntax_template.c:260
H264SPS::sar
AVRational sar
Definition: avc.h:48
ff_avc_find_startcode
const uint8_t * ff_avc_find_startcode(const uint8_t *p, const uint8_t *end)
Definition: avc.c:67
ff_avc_mp4_find_startcode
const uint8_t * ff_avc_mp4_find_startcode(const uint8_t *start, const uint8_t *end, int nal_length_size)
Definition: avc.c:252