FFmpeg
iamf_parse.h
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1 /*
2  * Immersive Audio Model and Formats parsing
3  * Copyright (c) 2023 James Almer <jamrial@gmail.com>
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_IAMF_PARSE_H
23 #define AVFORMAT_IAMF_PARSE_H
24 
25 #include <stdint.h>
26 
27 #include "avio.h"
28 #include "iamf.h"
29 
30 int ff_iamf_parse_obu_header(const uint8_t *buf, int buf_size,
31  unsigned *obu_size, int *start_pos, enum IAMF_OBU_Type *type,
32  unsigned *skip_samples, unsigned *discard_padding);
33 
34 int ff_iamfdec_read_descriptors(IAMFContext *c, AVIOContext *pb,
35  int size, void *log_ctx);
36 
37 #endif /* AVFORMAT_IAMF_PARSE_H */
type
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
Definition: writing_filters.txt:86
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
AVIOContext
Bytestream IO Context.
Definition: avio.h:160
size
int size
Definition: twinvq_data.h:10344
avio.h
IAMFContext
Definition: iamf.h:128
IAMF_OBU_Type
IAMF_OBU_Type
Definition: iamf.h:37
ff_iamfdec_read_descriptors
int ff_iamfdec_read_descriptors(IAMFContext *c, AVIOContext *pb, int size, void *log_ctx)
Definition: iamf_parse.c:1075
iamf.h
ff_iamf_parse_obu_header
int ff_iamf_parse_obu_header(const uint8_t *buf, int buf_size, unsigned *obu_size, int *start_pos, enum IAMF_OBU_Type *type, unsigned *skip_samples, unsigned *discard_padding)
Definition: iamf_parse.c:1020
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