[opus] [user] coverart and other tags

[Ian Malone]

On 12 February 2014 14:29, Ian Malone <ibmalone at gmail.com> wrote:
> On 12 February 2014 13:02, Alice Wonder <alicewonder at shastaherps.org> wrote:
>> Hello,
>>
>> I am new to using opus but so far I really am loving it. At 16kbps
>> spoken content sounds fabulous.
>>
>> I am using opusenc on 64-bit linux - mostly with flac input.
>>
>> The one thing I can't figure out how to do is add album art. I tried
>> passing the vorbis way of adding a metadata_block_picture comment field
>> to opusenc but it complained about the length.
>>
>> I can't seem to find any application like vorbiscomment for opus that
>> would let me do it after the encode.
>>
>> Does such a utility exist? I really need it to be CLI and work in linux,
>> this is being scripted for an audio hosting server.
>
> For opus ogg encapsulation both liboggz and vorbiscomment could
> probably be modified to support modifying the opus comment block too,
> but a while since I've looked at either so can't say immediately
> whether it's trivial or would require a bit of work. Can check, but
> would be later in the week.
>

...
vorbiscomment from vorbis tools would need modification to handle
editing Opus file comments and it would make more sense for opus-tools
to include an equivalent than try to add the functionality to
vorbis-tools.

liboggz last release does not support Opus (liboggz 1.1.1, 2010),
liboggz in git does already have support, https://www.xiph.org/oggz/
but appears to have a problem with producing "negative or zero
granulepos" (possibly rules for the Opus in Ogg encapsulation not
obeyed currently).

In the meantime the best solution is probably to use either the one
you've found or Timothy's suggestion, simply use opusenc to put it
there in the first place (though requires the original flac/wav).

-- 
imalone
http://ibmalone.blogspot.co.uk