[pulseaudio-discuss] [RAOP] [PATCH] Fix audio synchronisation

Tanu Kaskinen tanuk at iki.fi
Tue Sep 5 13:50:08 UTC 2017

On Sat, 2017-08-12 at 09:47 +0200, Colin Leroy wrote:
> On 05 August 2017 at 10h24, Colin Leroy wrote:
> Hi, 
> > > I think I've figured out how to cleanly synchronise audio and video
> > > with RAOP with relying on my empirical "shifting audio 2300ms in
> > > mplayer works".  
> > 
> > Hmmm, weirdly enough, that patch breaks VLC as I've just discovered,
> After investigating VLC's problem, it seems to be due to the fact they
> sync audio to video and not the other way around like most apps do.
> It's probably not an easy fix for me to do in VLC.
> What do you think we should do with that raop latency patch ? Should we
> consider it a problem that it breaks some apps, or that it's the app's
> problem that they can't handle a big latency ?

Sorry for not responding earlier. I intended to reply to this mail, but
I accidentally marked it as read and forgot about it.

It's VLC's problem if it can't handle big latencies. VLC will be quite
useless anyway regardless of what pulseaudio does, because if we report
too small latencies, then audio and video will be badly out of sync.

Does VLC work with big latencies when playing audio-only content?



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