FFmpeg
iamf_reader.h
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1 /*
2  * Immersive Audio Model and Formats demuxing utils
3  * Copyright (c) 2024 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_READER_H
23 #define AVFORMAT_IAMF_READER_H
24 
25 #include <stdint.h>
26 
27 #include "libavcodec/packet.h"
28 #include "avformat.h"
29 #include "avio.h"
30 #include "iamf.h"
31 
32 typedef struct IAMFDemuxContext {
34 
35  // Packet side data
37  size_t mix_size;
39  size_t demix_size;
41  size_t recon_size;
43 
45  AVIOContext *pb, int max_size, AVPacket *pkt);
46 
48 
49 #endif /* AVFORMAT_IAMF_READER_H */
IAMFDemuxContext::mix
AVIAMFParamDefinition * mix
Definition: iamf_reader.h:36
IAMFDemuxContext::recon_size
size_t recon_size
Definition: iamf_reader.h:41
ff_iamf_read_deinit
void ff_iamf_read_deinit(IAMFDemuxContext *c)
Definition: iamf_reader.c:328
AVIAMFParamDefinition
Parameters as defined in section 3.6.1 of IAMF.
Definition: iamf.h:184
pkt
AVPacket * pkt
Definition: movenc.c:60
s
#define s(width, name)
Definition: cbs_vp9.c:198
ff_iamf_read_packet
int ff_iamf_read_packet(AVFormatContext *s, IAMFDemuxContext *c, AVIOContext *pb, int max_size, AVPacket *pkt)
Definition: iamf_reader.c:267
IAMFDemuxContext::demix
AVIAMFParamDefinition * demix
Definition: iamf_reader.h:38
AVFormatContext
Format I/O context.
Definition: avformat.h:1260
IAMFDemuxContext::recon
AVIAMFParamDefinition * recon
Definition: iamf_reader.h:40
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
avio.h
IAMFDemuxContext::demix_size
size_t demix_size
Definition: iamf_reader.h:39
IAMFContext
Definition: iamf.h:128
IAMFDemuxContext::mix_size
size_t mix_size
Definition: iamf_reader.h:37
packet.h
avformat.h
AVPacket
This structure stores compressed data.
Definition: packet.h:510
iamf.h
IAMFDemuxContext
Definition: iamf_reader.h:32
IAMFDemuxContext::iamf
IAMFContext iamf
Definition: iamf_reader.h:33