Opened 12 years ago
Closed 12 years ago
Last modified 10 years ago
#30 closed defect (fixed)
av_metadata_get does not get embeded meta data
|Reported by:||chinshou||Owned by:||baptiste|
|Blocking:||Reproduced by developer:||yes|
|Analyzed by developer:||no|
ffmepg binary was downloaded from http://ffmpeg.arrozcru.org/autobuilds/ffmpeg/mingw32/static/ffmpeg-r26400-swscale-r32676-mingw32-static.7z
executed ffmpeg -i 1.flv -f mp4 -metadata lyrics="abc" 1.mp4 to embed lyrics meta data to mp4 container format video file
from http://wiki.multimedia.cx/index.php?title=FFmpeg_Metadata, it seems lyrics metadata was supported by mp4 container.
but after conversion ,
execute ffmpeg -i 1.mp4 lyrics metadata was not displayed .
use a hex editor to edit the mp4 file , I can find "abc" text was appended at the end of mp4 file.
But it seems av_metadata_get did not read the lyrics metadata correctly. some other metadata seems ok for example title meta tag.
ffmpeg -i 1.flv -f mp4 -metadata title="abc" 1.mp4
Change History (3)
comment:1 by , 12 years ago
|Component:||FFmpeg → avformat|
|Keywords:||mp4 muxer metadata added|
|Reproduced by developer:||set|
|Status:||new → open|
comment:2 by , 12 years ago
|Status:||open → closed|
A handful of tags, among them lyrics, were written by the muxer but not read by the demuxer.
This is fixed 543f3db.
comment:3 by , 10 years ago
|Keywords:||mov added; mp4 muxer removed|
The mp4 muxer does not store the metadata, it seems.