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ffmpeg / libavformat / riff.h @ 36ffabc4

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/*
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 * RIFF codec tags
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 * copyright (c) 2000 Fabrice Bellard
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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/**
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 * @file
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 * internal header for RIFF based (de)muxers
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 * do NOT include this in end user applications
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 */
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#ifndef AVFORMAT_RIFF_H
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#define AVFORMAT_RIFF_H
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#include "libavcodec/avcodec.h"
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#include "avio.h"
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#include "internal.h"
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int64_t ff_start_tag(AVIOContext *pb, const char *tag);
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void ff_end_tag(AVIOContext *pb, int64_t start);
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/**
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 * Read BITMAPINFOHEADER structure and set AVStream codec width, height and
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 * bits_per_encoded_sample fields. Does not read extradata.
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 * @return codec tag
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 */
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int ff_get_bmp_header(AVIOContext *pb, AVStream *st);
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void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf);
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int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc);
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enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps);
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void ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size);
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extern const AVCodecTag ff_codec_bmp_tags[];
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extern const AVCodecTag ff_codec_wav_tags[];
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unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum CodecID id);
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enum CodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag);
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void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale);
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typedef uint8_t ff_asf_guid[16];
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#define FF_PRI_GUID \
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    "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x"
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#define FF_ARG_GUID(g) \
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    g[0],g[1],g[2],g[3],g[4],g[5],g[6],g[7],g[8],g[9],g[10],g[11],g[12],g[13],g[14],g[15]
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static av_always_inline int ff_guidcmp(const void *g1, const void *g2)
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{
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    return memcmp(g1, g2, sizeof(ff_asf_guid));
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}
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void ff_get_guid(AVIOContext *s, ff_asf_guid *g);
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typedef struct {
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    enum CodecID id;
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    ff_asf_guid guid;
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} AVCodecGuid;
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enum CodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid);
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extern const AVCodecGuid ff_codec_wav_guids[];
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#define FF_MEDIASUBTYPE_BASE_GUID \
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    0x00,0x00,0x10,0x00,0x80,0x00,0x00,0xAA,0x00,0x38,0x9B,0x71
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#endif /* AVFORMAT_RIFF_H */