Re: MetaData Update for FLAC and OPUS

Philipp Schafft <[email protected]> Tue, 13 Aug 2019 12:09:15 +0000
Newsgroups gmane.comp.audio.icecast.devel
Message-ID <[email protected]>
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Good afternoon,



On Tue, 2019-08-13 at 13:36 +0200, [email protected] wrote:
> It seems, that with FLAC and OPUS streams (not individual files) the song=
 title (meta data) updates do not work.
>=20
> Also the ICEcast admin web interface isn=E2=80=99t working for FLAC and O=
PUS; while it is working for MP3, AAC as well as OGG streams.
>=20
> =20
>=20
> I.e. when sending a continuous FLAC or OPUS stream to an ICEcast server, =
it seems impossible to update the meta data mid-stream (like it works for M=
P3, AAC or OGG).
>=20
> I also couldn=E2=80=99t find any way to tell the original FLAC or OPUS en=
coder to perform the meta data update mid-stream.

Then that is a limitation of the encoder. You should contact the vendor
of your encoder and ask them about it.



> Any suggestions?

See my reply here:
http://lists.xiph.org/pipermail/icecast/2019-August/014767.html


> Or are mid-stream meta-data updates simply not supported?

They are. And support is complete beside that they do not show up on the
status page for FLAC based streams. But they are passed to the listener
correctly.


> If they support, I would be glad about any info on how to implement them.

You must tell your encoder to update the metadata. It's the encoder's
job to send them.


> If they are not supported, are there any plans to implement the admin met=
a data update interface also for FLAC and OPUS?

No. As metadata updates are already supported according to all relevant
standards. Anything else would be outside the standards and would likely
be more harm than good.


With best regards,

--=20
Philipp Schafft (CEO/Gesch=C3=A4ftsf=C3=BChrer)=20
Telephon: +49.3535 490 17 92

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