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97 lines
3.0 KiB
97 lines
3.0 KiB
/* |
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* RIFF common functions and data |
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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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#include "metadata.h" |
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extern const AVMetadataConv ff_riff_info_conv[]; |
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extern const char ff_riff_tags[][5]; |
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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, unsigned *esize); |
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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 AVCodecID ff_wav_codec_get_id(unsigned int tag, int bps); |
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int 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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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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int ff_read_riff_info(AVFormatContext *s, int64_t size); |
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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 AVCodecID id; |
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ff_asf_guid guid; |
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} AVCodecGuid; |
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enum AVCodecID 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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/** |
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* Write all recognized RIFF tags from s->metadata |
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*/ |
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void ff_riff_write_info(AVFormatContext *s); |
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/** |
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* Write a single RIFF info tag |
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*/ |
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void ff_riff_write_info_tag(AVIOContext *pb, const char *tag, const char *str); |
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#endif /* AVFORMAT_RIFF_H */
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