Gapless playback not working when using FLAC files

[stefan1983]

I am using the latest version of Amperfy (BLeeEZ/amperfy) via Apple TestFlight.
As you probably know, Amperfy uses your audio streaming library for streaming.

Now, when I use files encoded in ALAC format, gapless playback works fine. Do I use the same files encoded in FLAC format, it doesn't work. I could provide test files if needed.

[dimitris-c]

Ideally I would need to run my own server of Ampache and run the files via the amperfy app to check.
Could you please send sample files to check when I get some free time, thanks

[stefan1983]

Thanks, I will provide you some test files.

[stefan1983]

Did you receive the files?

[dimitris-c]

Where should I have? send them via a wetransfer link

[stefan1983]

I did send it to the gmail address behind your account. But anyway, here is the link:

https://we.tl/t-Rb7GMNtsGO

[dimitris-c]

So using my example project, playing files locally and remotely (uploaded to Dropbox for testing) the gapless playback plays just fine without any gaps. I tested only the FLAC files you send me.

I can't say for sure if the issue is with this library or Amperfy code, I'll try to setup a server and check but not sure I can be of help for the Amperfy's code.

[stefan1983]

Thanks for looking into it.

Any help is appreciated. If it isn't the library but Amperfy's issue, that will help as well (so they can have a deeper look).

[dimitris-c]

I'm afraid from an extensive investigation over the weekend I couldn't find a way to fix gapless playback for FLAC files.
I've even integrated libFLAC library for custom decoding and I could still hear a gap - the transition to add a custom decoder per file requires too much time which I do not have to invest.

I will have a look at some other time, but I am not sure I will provide a fix for this.

[dimitris-c]

Just so you are aware, if my investigation is correct this is an Apple issue with the specific API the AudioStreaming library use. I have submitted a bug report to Apple for this... If my hunch is correct and this is indeed an Apple issue let hope they fix it on upcoming iOS versions :)

Bug report: FB20791844

[stefan1983]

Thanks for your support! Let´s hope for it.