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#include "metadata.h" 35 36extern const AVMetadataConv ff_riff_info_conv[]; 37extern const char ff_riff_tags[][5]; 38 39int64_t ff_start_tag(AVIOContext *pb, const char *tag); 40void ff_end_tag(AVIOContext *pb, int64_t start); 41 42/** 43 * Read BITMAPINFOHEADER structure and set AVStream codec width, height and 44 * bits_per_encoded_sample fields. Does not read extradata. 45 * @return codec tag 46 */ 47int ff_get_bmp_header(AVIOContext *pb, AVStream *st); 48 49void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf); 50int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc); 51enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps); 52int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size); 53 54extern const AVCodecTag ff_codec_bmp_tags[]; 55extern const AVCodecTag ff_codec_wav_tags[]; 56 57unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum CodecID id); 58enum CodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag); 59void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale); 60 61int ff_read_riff_info(AVFormatContext *s, int64_t size); 62 63#endif /* AVFORMAT_RIFF_H */ 64