[flac-dev] Mid-Stream Meta Data Updates for ICEcast

[bn at radio42.com]

Any News to this question?

 

The clear answer from the ICEcast developers is, that the only proper way to update meta-data (out-of-band) on a continuous/endless ICEcast stream when using any OGG based format (i.e. OGG, FLAC or Opus) is by providing multiple chained streams – one for each logical track change.

 

The odd situation is now, that the standard reference encoders as provided by xiph.org (i.e. this FLAC encoder) doesn’t support this out-of-the box. 

 

As such, the ICEcast developers and others do recommend to make the modification the client/encoder side.

You can read the full post/issue here:

 <http://lists.xiph.org/pipermail/icecast-dev/2019-August/002701.html> http://lists.xiph.org/pipermail/icecast-dev/2019-August/002701.html

 

Any chance to get an meta-data update interface for automatic chained channels on the encoder side implemented?

 

Regards,

Bernd

 

 

Von: flac-dev <flac-dev-bounces at xiph.org> Im Auftrag von bn at radio42.com
Gesendet: Dienstag, 13. August 2019 14:40
An: flac-dev at xiph.org
Betreff: [flac-dev] Mid-Stream Meta Data Updates for ICEcast

 

I am streaming a FLAC OGG stream to an ICEcast server (a continuous/endless stream) using the standard FLAC command-line encoder (capturing STDOUT).

 

It seems, that with FLAC streams the song title (meta data) updates do not work.

Also the ICEcast admin web interface isn’t working for FLAC; while it is working for MP3, AAC as well as OGG streams.

I.e. when sending a continuous FLAC stream to an ICEcast server, it seems impossible to update the meta data mid-stream.

 

I was asking the ICEcast developers for a solution, but they keep giving me the following answer:

“You should contact the vendor of your encoder and ask them about it. Mid-Stream meta-data updates are supported by ICEcast. 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”

 

As such, I am now asking you on how to implement mid-stream meta-data updates with the FLAC encoder?!

So far I couldn’t find any options in the FLAC encoder nor the FLAC specs – as such I am wondering, what the ICEcast developers have implemented.

Or is there a way to tell the encoder mid-stream, that the meta-data (e.g. song title and artist) has changed?

 

Many Thanks,

Bernd

 

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