aarch64: Add assembly support for -fsanitize=hwaddress tagged globals.
[libav.git] / libavformat / riff.h
... / ...
CommitLineData
1/*
2 * RIFF common functions and data
3 * copyright (c) 2000 Fabrice Bellard
4 *
5 * This file is part of Libav.
6 *
7 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22/**
23 * @file
24 * internal header for RIFF based (de)muxers
25 * do NOT include this in end user applications
26 */
27
28#ifndef AVFORMAT_RIFF_H
29#define AVFORMAT_RIFF_H
30
31#include "libavcodec/avcodec.h"
32#include "avio.h"
33#include "internal.h"
34#include "metadata.h"
35
36extern const AVMetadataConv ff_riff_info_conv[];
37
38int64_t ff_start_tag(AVIOContext *pb, const char *tag);
39void ff_end_tag(AVIOContext *pb, int64_t start);
40
41/**
42 * Read BITMAPINFOHEADER structure and set AVStream codec width, height and
43 * bits_per_encoded_sample fields. Does not read extradata.
44 * Writes the size of the BMP file to *size.
45 * @return codec tag
46 */
47int ff_get_bmp_header(AVIOContext *pb, AVStream *st, uint32_t *size);
48
49void ff_put_bmp_header(AVIOContext *pb, AVCodecParameters *par, const AVCodecTag *tags, int for_asf);
50int ff_put_wav_header(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par);
51enum AVCodecID ff_wav_codec_get_id(unsigned int tag, int bps);
52int ff_get_wav_header(AVFormatContext *s, AVIOContext *pb, AVCodecParameters *par, int size);
53
54extern const AVCodecTag ff_codec_bmp_tags[];
55extern const AVCodecTag ff_codec_wav_tags[];
56
57void ff_parse_specific_params(AVStream *st, int *au_rate, int *au_ssize, int *au_scale);
58
59int ff_read_riff_info(AVFormatContext *s, int64_t size);
60
61/**
62 * Write all recognized RIFF tags from s->metadata
63 */
64void ff_riff_write_info(AVFormatContext *s);
65
66/**
67 * Write a single RIFF info tag
68 */
69void ff_riff_write_info_tag(AVIOContext *pb, const char *tag, const char *str);
70
71typedef uint8_t ff_asf_guid[16];
72
73typedef struct AVCodecGuid {
74 enum AVCodecID id;
75 ff_asf_guid guid;
76} AVCodecGuid;
77
78extern const AVCodecGuid ff_codec_wav_guids[];
79
80#define FF_PRI_GUID \
81 "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x"
82
83#define FF_ARG_GUID(g) \
84 g[0], g[1], g[2], g[3], g[4], g[5], g[6], g[7], \
85 g[8], g[9], g[10], g[11], g[12], g[13], g[14], g[15]
86
87#define FF_MEDIASUBTYPE_BASE_GUID \
88 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71
89
90static av_always_inline int ff_guidcmp(const void *g1, const void *g2)
91{
92 return memcmp(g1, g2, sizeof(ff_asf_guid));
93}
94
95static av_always_inline int ff_get_guid(AVIOContext *s, ff_asf_guid *g)
96{
97 return avio_read(s, *g, sizeof(*g));
98}
99
100enum AVCodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid);
101
102#endif /* AVFORMAT_RIFF_H */