Metadata in FLAC streams

[d6jg]

I’m building a Radio Station and have been testing it by using LMS as the client for my FLAC stream tests but I have run into an issue that I think may have revealed a limitation of the piCorePlayer based LMS.
Using my production server which is an old HP Microserver if I tune in to my FLAC stream I see metadata and changes as you’d expect. If I tune in using either of 2 Pi based LMS (I have a Dev one here and another at a work location) I get the initial metadata but no changes.
Initially I put it down to a networking issue but I’m pretty sure it’s not and that the culprit must be the Pi itself.
This is confined to the FLAC stream.
All servers work fine with mp3 stream.
Anybody have any ideas on what could be the issue. Time?

[Paul Webster]

As an experiment - try setting the player to proxy through LMS.
Settings/Player/xx:xx:xx:xx/AUdio/Streaming Method/Proxied Streaming

[d6jg]

As an experiment - try setting the player to proxy through LMS.
Settings/Player/xx:xx:xx:xx/AUdio/Streaming Method/Proxied Streaming

Good shout but no change.

[Paul Webster]

Maybe Squeezelite cannot read (some version of) metadata in FLAC.

How about telling LMS to transcode it to MP3 (just for fun) - at least it would show that LMS can read it and then Squeezelite might be changed to do the same (if that is the issue)?

[d6jg]

Maybe Squeezelite cannot read (some version of) metadata in FLAC.

How about telling LMS to transcode it to MP3 (just for fun) - at least it would show that LMS can read it and then Squeezelite might be changed to do the same (if that is the issue)?

I don’t think it’s a Squeezelite issue. Squeezelite has no knowledge of metadata does it?
I feel it’s a server based issue.
Production non Pi server with Squeezelite player. Metadata updates shown in eg Material
Dev server. Metadata updates not shown in Material or iPeng or Default.

[bpa]

I don’t think it’s a Squeezelite issue. Squeezelite has no knowledge of metadata does it?

IIRC Squeezelite (or any SB player) when playing direct stream - strips metadata and sends metadata to LMS to display.

[d6jg]

IIRC Squeezelite (or any SB player) when playing direct stream - strips metadata and sends metadata to LMS to display.

It’s Proxied now with the same result.
Squeezelite players on my Production box are OK.
I’ll need to switch an SB3 across to a dev box and see if that makes a difference.
I have tried the RP flacm stream and that works on all.
There isn’t anything on the streaming server side that can be fiddled. Icecast based server.

[bpa]

It’s Proxied now with the same result.
Squeezelite players on my Production box are OK.
I’ll need to switch an SB3 across to a dev box and see if that makes a difference.
I have tried the RP flacm stream and that works on all.
There isn’t anything on the streaming server side that can be fiddled. Icecast based server.

Can't help much as I don't know how metadata is added to Flac streams (e.g. icy, MPEG2+ID3) nor the "standard" transport format for streaming Flac. I thought the RP Flac support was a special.

[d6jg]

Can't help much as I don't know how metadata is added to Flac streams (e.g. icy, MPEG2+ID3) nor the "standard" transport format for streaming Flac. I thought the RP Flac support was a special.

TBH when I first fired it up on my Production Box I was a bit surprised that the metadata was working apparently across all player types. I was expecting issues.
Today I went to work elsewhere but where I have a piCorePlayer player/LMS. It worked with mp3 but no updates over FLAC.
Then I looked on my dev server here and it was the same.
Both are piCorePlayer. It must be something to do with the Pi either something to do with the clock or perhaps a subtle difference in LMS on the Pi.
Typing that I’ve just realised Pi’s are 32 bit but my HP server is 64bit so there is a compiling difference.

[philippe_44]

TBH when I first fired it up on my Production Box I was a bit surprised that the metadata was working apparently across all player types. I was expecting issues.
Today I went to work elsewhere but where I have a piCorePlayer player/LMS. It worked with mp3 but no updates over FLAC.
Then I looked on my dev server here and it was the same.
Both are piCorePlayer. It must be something to do with the Pi either something to do with the clock or perhaps a subtle difference in LMS on the Pi.
Typing that I’ve just realised Pi’s are 32 bit but my HP server is 64bit so there is a compiling difference.

Are you talking about updates during flac stream? If you do, be aware that flac does not support that. It's not a limitation of the player but of flac itself. Now, you should use flac in an ogg container and that will do.