[pulseaudio-discuss] xine 5.1 channel downmix / gmplayer pulse output

[Pierre Ossman]

Nikolaus Filus wrote:
> Hello,
> 
> recently I switched to pulseaudio on ubuntu feisty. I got almost everything
> working (again) except 2 things:
> 
> 1. xine is working great, but if I play an AC3 5.1 file, I hear only 2 of five
> channels (1 front and 1 silent back channel). For alsa xine has a downmix
> option, but it doesn't work for pulse output.
> Should that be corrected in xine's pulse output plugin or is there a builtin
> channel downmix in pulseaudio? Mplayer does it as expected, but I couldn't
> figure out, where is it done.
> 

It all depends on what backends you use. The basic problem is probably
that xine is not giving you the same channels you have specified in your
sink. I would suggest using pacmd and checking the channel maps while
xine is playing.

> 
> 2. mplayer works fine, but gmplayer freezes after few played samples and waits
> for some event. I get a lot of
> futex(0x8bb0af0, FUTEX_WAKE, 1)         = 0
> in strace output.
> Sometimes there is a window showing up: "AO: [pulse] Failed to get sink input
> info: Timeout"
> 

No idea. I've only tested mplayer directly. Have you checked that it
doesn't call mplayer with some odd parameters?

Rgds
-- 
Pierre Ossman            OpenSource-based Thin Client Technology
System Developer         Telephone: +46-13-21 46 00
Cendio AB                Web: http://www.cendio.com

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