riff.h
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1 /*
2  * RIFF codec tags
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 
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 
36 extern const AVMetadataConv ff_riff_info_conv[];
37 extern const char ff_riff_tags[][5];
38 
39 int64_t ff_start_tag(AVIOContext *pb, const char *tag);
40 void ff_end_tag(AVIOContext *pb, int64_t start);
41 
48 
49 void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf);
51 enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps);
52 int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size);
53 
54 extern const AVCodecTag ff_codec_bmp_tags[];
55 extern const AVCodecTag ff_codec_wav_tags[];
56 
57 unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum CodecID id);
58 enum CodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag);
59 void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale);
60 
61 int ff_read_riff_info(AVFormatContext *s, int64_t size);
62 
63 #endif /* AVFORMAT_RIFF_H */
int ff_read_riff_info(AVFormatContext *s, int64_t size)
Definition: riff.c:645
Bytestream IO Context.
Definition: avio.h:68
Buffered I/O operations.
int size
void ff_end_tag(AVIOContext *pb, int64_t start)
int64_t ff_start_tag(AVIOContext *pb, const char *tag)
void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
Definition: riff.c:623
const AVMetadataConv ff_riff_info_conv[]
Definition: riff.c:346
Format I/O context.
Definition: avformat.h:863
const AVCodecTag ff_codec_wav_tags[]
Definition: riff.c:289
internal metadata API header see avformat.h or the public API!
uint32_t tag
Definition: movenc.c:670
enum CodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag)
Definition: utils.c:2206
int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size)
const AVCodecTag ff_codec_bmp_tags[]
Definition: riff.c:31
Stream structure.
Definition: avformat.h:620
const char ff_riff_tags[][5]
Definition: riff.c:361
external API header
main external API structure.
Definition: avcodec.h:1329
void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf)
unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum CodecID id)
Definition: utils.c:2196
int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc)
unsigned bps
Definition: movenc.c:671
CodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:83
int ff_get_bmp_header(AVIOContext *pb, AVStream *st)
Read BITMAPINFOHEADER structure and set AVStream codec width, height and bits_per_encoded_sample fiel...
enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps)