handle malloc failures in ff_get_wav_header
[libav.git] / libavformat / riff.h
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
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
35 int64_t ff_start_tag(AVIOContext *pb, const char *tag);
36 void ff_end_tag(AVIOContext *pb, int64_t start);
37
38 /**
39 * Read BITMAPINFOHEADER structure and set AVStream codec width, height and
40 * bits_per_encoded_sample fields. Does not read extradata.
41 * @return codec tag
42 */
43 int ff_get_bmp_header(AVIOContext *pb, AVStream *st);
44
45 void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf);
46 int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc);
47 enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps);
48 int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size);
49
50 extern const AVCodecTag ff_codec_bmp_tags[];
51 extern const AVCodecTag ff_codec_wav_tags[];
52
53 unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum CodecID id);
54 enum CodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag);
55 void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale);
56
57 #endif /* AVFORMAT_RIFF_H */