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/* |
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* RIFF common functions and data |
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* copyright (c) 2000 Fabrice Bellard
* |
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* This file is part of FFmpeg.
*
* 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
* 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
* 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 |
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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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* @file |
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* 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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|
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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"
extern const AVMetadataConv ff_riff_info_conv[]; |
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|
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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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|
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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
*/ |
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int ff_get_bmp_header(AVIOContext *pb, AVStream *st, unsigned *esize); |
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|
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void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf, int ignore_extradata); |
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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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|
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extern const AVCodecTag ff_codec_bmp_tags[]; // exposed through avformat_get_riff_video_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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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);
/**
* 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;
extern const AVCodecGuid ff_codec_wav_guids[]; |
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|
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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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|
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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]
#define FF_MEDIASUBTYPE_BASE_GUID \
0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71 |
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|
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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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int ff_get_guid(AVIOContext *s, ff_asf_guid *g); |
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void ff_put_guid(AVIOContext *s, const ff_asf_guid *g);
const ff_asf_guid *get_codec_guid(enum AVCodecID id, const AVCodecGuid *av_guid); |
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|
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enum AVCodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid); |
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|
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#endif /* AVFORMAT_RIFF_H */ |