0,0 → 1,98 |
/* |
* RIFF common functions and data |
* copyright (c) 2000 Fabrice Bellard |
* |
* This file is part of FFmpeg. |
* |
* FFmpeg is free software; you can redistribute it and/or |
* modify it under the terms of the GNU Lesser General Public |
* License as published by the Free Software Foundation; either |
* version 2.1 of the License, or (at your option) any later version. |
* |
* FFmpeg is distributed in the hope that it will be useful, |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
* Lesser General Public License for more details. |
* |
* You should have received a copy of the GNU Lesser General Public |
* License along with FFmpeg; if not, write to the Free Software |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
*/ |
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/** |
* @file |
* internal header for RIFF based (de)muxers |
* do NOT include this in end user applications |
*/ |
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#ifndef AVFORMAT_RIFF_H |
#define AVFORMAT_RIFF_H |
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#include "libavcodec/avcodec.h" |
#include "avio.h" |
#include "internal.h" |
#include "metadata.h" |
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extern const AVMetadataConv ff_riff_info_conv[]; |
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int64_t ff_start_tag(AVIOContext *pb, const char *tag); |
void ff_end_tag(AVIOContext *pb, int64_t start); |
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/** |
* Read BITMAPINFOHEADER structure and set AVStream codec width, height and |
* bits_per_encoded_sample fields. Does not read extradata. |
* @return codec tag |
*/ |
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); |
int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc); |
enum AVCodecID ff_wav_codec_get_id(unsigned int tag, int bps); |
int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size); |
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extern const AVCodecTag ff_codec_bmp_tags[]; // exposed through avformat_get_riff_video_tags() |
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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int ff_read_riff_info(AVFormatContext *s, int64_t size); |
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/** |
* Write all recognized RIFF tags from s->metadata |
*/ |
void ff_riff_write_info(AVFormatContext *s); |
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/** |
* Write a single RIFF info tag |
*/ |
void ff_riff_write_info_tag(AVIOContext *pb, const char *tag, const char *str); |
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typedef uint8_t ff_asf_guid[16]; |
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typedef struct AVCodecGuid { |
enum AVCodecID id; |
ff_asf_guid guid; |
} AVCodecGuid; |
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extern const AVCodecGuid ff_codec_wav_guids[]; |
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#define FF_PRI_GUID \ |
"%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) \ |
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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#define FF_MEDIASUBTYPE_BASE_GUID \ |
0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71 |
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static av_always_inline int ff_guidcmp(const void *g1, const void *g2) |
{ |
return memcmp(g1, g2, sizeof(ff_asf_guid)); |
} |
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void ff_get_guid(AVIOContext *s, ff_asf_guid *g); |
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enum AVCodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid); |
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#endif /* AVFORMAT_RIFF_H */ |