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