[Vorbis-dev] base64 ALBUMART vorbiscomment (was Re: [ogg-dev] Ogg/Spots and Ogg/MNG)
conrad at metadecks.org
Sat Apr 12 14:22:35 PDT 2008
On 13/04/2008, Ian Malone <ibmalone at gmail.com> wrote:
> Ivo Emanuel Gonçalves wrote:
> > Using vorbiscomment one would
> > simply tell it to kill the ALBUMART tag. On the other hand, you'll
> > need to use something like ogg-chop to get rid of a multiplexed image,
> > as far as my understanding of handling multiplexed streams goes.
just to clarify this, you'd use something like oggzrip to rip the
vorbis track out of any ogg file at all:
oggzrip -c vorbis input.ogx > output.ogg
That'll get you an Ogg Vorbis I file, removing any other tracks
(Skeleton, Theora, image, whatever).
(If the input file has more than one Vorbis track, you'd specify it by
serialno with -s rather than using -c).
> You can't with vorbiscomment (you have to dump the comments, strip it
> and write them back, and vorbiscomment will not support safe
> round-tripping if I recall correctly, due to the new-line thing).
Ian, could you clarify this?
> You can do it with the comment library.
which comment library are you thinking of?
> So for a developer I think it's
> harder to add/subtract images that are already Ogg encapsulated as you
> just use liboggz or your own muxing (the already encapsulated is the
> tricky bit).
I don't understand this sentence :-) are you saying that one of the
possible approaches is lacking in library/tool support?
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