libavformat/riff.c File Reference

#include "libavutil/mathematics.h"
#include "libavcodec/avcodec.h"
#include "avformat.h"
#include "avio_internal.h"
#include "riff.h"
#include "libavcodec/bytestream.h"

Go to the source code of this file.

Functions

int64_t ff_start_tag (AVIOContext *pb, const char *tag)
void ff_end_tag (AVIOContext *pb, int64_t start)
int ff_put_wav_header (AVIOContext *pb, AVCodecContext *enc)
void ff_put_bmp_header (AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf)
int ff_get_wav_header (AVIOContext *pb, AVCodecContext *codec, int size)
enum CodecID ff_wav_codec_get_id (unsigned int tag, int bps)
int ff_get_bmp_header (AVIOContext *pb, AVStream *st)
 Read BITMAPINFOHEADER structure and set AVStream codec width, height and bits_per_encoded_sample fields.
void ff_parse_specific_params (AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
int ff_read_riff_info (AVFormatContext *s, int64_t size)

Variables

const AVCodecTag ff_codec_bmp_tags []
const AVCodecTag ff_codec_wav_tags []
const AVMetadataConv ff_riff_info_conv []
const char ff_riff_tags [][5]

Function Documentation

void ff_end_tag ( AVIOContext pb,
int64_t  start 
)
int ff_get_bmp_header ( AVIOContext pb,
AVStream st 
)

Read BITMAPINFOHEADER structure and set AVStream codec width, height and bits_per_encoded_sample fields.

Does not read extradata.

Returns:
codec tag

Definition at line 600 of file riff.c.

Referenced by avi_read_header(), and parse_videoinfoheader2().

void ff_parse_specific_params ( AVCodecContext stream,
int *  au_rate,
int *  au_ssize,
int *  au_scale 
)

Definition at line 618 of file riff.c.

Referenced by avi_write_counters(), avi_write_header(), and nut_write_header().

void ff_put_bmp_header ( AVIOContext pb,
AVCodecContext enc,
const AVCodecTag tags,
int  for_asf 
)

Definition at line 493 of file riff.c.

Referenced by asf_write_header1(), avi_write_header(), and mkv_write_codecprivate().

int ff_put_wav_header ( AVIOContext pb,
AVCodecContext enc 
)
int ff_read_riff_info ( AVFormatContext s,
int64_t  size 
)

Definition at line 640 of file riff.c.

Referenced by avi_read_header(), and wav_read_header().

int64_t ff_start_tag ( AVIOContext pb,
const char *  tag 
)
enum CodecID ff_wav_codec_get_id ( unsigned int  tag,
int  bps 
)

Variable Documentation

Initial value:
 {
    { "IART", "artist"    },
    { "ICMT", "comment"   },
    { "ICOP", "copyright" },
    { "ICRD", "date"      },
    { "IGNR", "genre"     },
    { "ILNG", "language"  },
    { "INAM", "title"     },
    { "IPRD", "album"     },
    { "IPRT", "track"     },
    { "ISFT", "encoder"   },
    { "ITCH", "encoded_by"},
    { 0 },
}

Definition at line 346 of file riff.c.

Referenced by avi_read_header(), and wav_read_header().

const char ff_riff_tags[][5]
Initial value:
 {
    "IARL", "IART", "ICMS", "ICMT", "ICOP", "ICRD", "ICRP", "IDIM", "IDPI",
    "IENG", "IGNR", "IKEY", "ILGT", "ILNG", "IMED", "INAM", "IPLT", "IPRD",
    "IPRT", "ISBJ", "ISFT", "ISHP", "ISRC", "ISRF", "ITCH",
    {0}
}

Definition at line 361 of file riff.c.