mp3 - beandog's mostly dvds multimedia wiki

====== MP3 ======

  * [[https://libav.org/documentation/avconv.html#mp3|avconv MP3 muxer]] - documentation on metadata

Strip an MP3 of all metadata:

<code>
avconv -i source.mp3 -write_xing 0 -id3v2_version 0 -map_metadata -1 -acodec copy no_metadata.mp3
</code>

See [[http://jonhall.info/how_to/create_id3_tags_using_ffmpeg|here]] for documentation of mapping tags using avconv.

Set metadata title:

<code>
avconv -i source.mp3 -id3v2_version 3 -metadata title="Highway to Danger" -acodec copy title.mp3
</code>

Set title, album, artist, track number:

<code>
avconv -i source.mp3 -id3v2_version 3 -metadata title="Highway to Danger" -metadata artist="Knight Rider" -metadata album="Read Along Books" -metadata track=1 -acodec copy metadata.mp3
</code>

Add cover art as well:

<code>
avconv -i source.mp3 -i cover.jpg -acodec copy cover_art.mp3
</code>

Note that avconv will convert the cover art to a PNG. If it already is one, you can can copy it directly:

<code>
avconv -i source.mp3 -i cover.jpg -acodec copy -vcodec copy cover_art.mp3
</code>
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