[MPlayer-users] pulseaudio failing at passthrough

Alexander Roalter alex at roalter.it
Fri Feb 14 20:32:04 CET 2014

On 14.02.2014 20:14, Reimar Döffinger wrote:
> On Fri, Feb 14, 2014 at 08:11:03PM +0100, Reimar Döffinger wrote:
>> On Thu, Feb 13, 2014 at 10:52:50PM +0100, Alexander Roalter wrote:
>>> If I play back AC3 audio with ao pulse and S/PDIF passthrough, I get
>> Passthrough with pulseaudio is a mess, it requires us to use a new API,
>> which means either detecting if it is available or dropping support
>> for old versions
> I just realized that passthrough in pulseaudio was only added last year,
> so removing support for old versions definitely isn't an option.
> Also, unless I can get passthrough to work on my system (didn't work out
> so far) I definitely won't be working on this.

Thanks for the info about this.

I would happily switch back to alsa, if it weren't for the strage 
reinitialization thing it does whenever I seek, and the thing dvdnav 
does on chapter break.

BTW: the standard sound configuration for PA has some idle timer 
working, so whenever I pause playback in some application and restart 
again, the AV receiver takes about half a second to play audio again. If 
I have this idle timer (/etc/pulse/default.pa: load-module 
module-suspend-on-idle) deactivated, this doesn't happen, but then I 
cannot have mplayer use alsa, because pulse blocks the audio output :(
That's the initial reason I'm looking for passthrough with PA.

Don't know if the AV receiver is crap or is there another explanation 
why this muting with the idle filter is going on? From what I was 
reading, I'm not the only one with this issue, and the standard answer 
was to disable the suspend-on-idle module (which doesn't go well with my 
intended use of alsa)


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