FFmpeg
Functions | Variables
vorbiscomment.c File Reference
#include "avformat.h"
#include "metadata.h"
#include "vorbiscomment.h"
#include "libavcodec/bytestream.h"
#include "libavutil/dict.h"

Go to the source code of this file.

Functions

int64_t ff_vorbiscomment_length (AVDictionary *m, const char *vendor_string, AVChapter **chapters, unsigned int nb_chapters)
 Calculate the length in bytes of a VorbisComment. More...
 
int ff_vorbiscomment_write (uint8_t **p, AVDictionary **m, const char *vendor_string, AVChapter **chapters, unsigned int nb_chapters)
 Write a VorbisComment into a buffer. More...
 

Variables

const AVMetadataConv ff_vorbiscomment_metadata_conv []
 VorbisComment metadata conversion mapping. More...
 

Function Documentation

int64_t ff_vorbiscomment_length ( AVDictionary m,
const char *  vendor_string,
AVChapter **  chapters,
unsigned int  nb_chapters 
)

Calculate the length in bytes of a VorbisComment.

This is the minimum size required by ff_vorbiscomment_write().

Parameters
mThe metadata structure to be parsed. For no metadata, set to NULL.
vendor_stringThe vendor string to be added into the VorbisComment. For no string, set to an empty string.
Returns
The length in bytes.

Definition at line 41 of file vorbiscomment.c.

Referenced by flac_write_block_comment(), ogg_write_vorbiscomment(), and put_flac_codecpriv().

int ff_vorbiscomment_write ( uint8_t **  p,
AVDictionary **  m,
const char *  vendor_string,
AVChapter **  chapters,
unsigned int  nb_chapters 
)

Write a VorbisComment into a buffer.

The buffer, p, must have enough data to hold the whole VorbisComment. The minimum size required can be obtained by passing the same AVDictionary and vendor_string to ff_vorbiscomment_length()

Parameters
pThe buffer in which to write.
mThe metadata struct to write.
vendor_stringThe vendor string to write.
chaptersThe chapters to write.
nb_chaptersThe number of chapters to write.

Definition at line 65 of file vorbiscomment.c.

Referenced by flac_write_block_comment(), ogg_write_vorbiscomment(), and put_flac_codecpriv().

Variable Documentation

const AVMetadataConv ff_vorbiscomment_metadata_conv[]
Initial value:
= {
{ "ALBUMARTIST", "album_artist"},
{ "TRACKNUMBER", "track" },
{ "DISCNUMBER", "disc" },
{ "DESCRIPTION", "comment" },
{ 0 }
}

VorbisComment metadata conversion mapping.

from Ogg Vorbis I format specification: comment field and header specification http://xiph.org/vorbis/doc/v-comment.html

Definition at line 33 of file vorbiscomment.c.

Referenced by ff_vorbis_comment(), flac_write_block_comment(), and ogg_write_vorbiscomment().