[pulseaudio-discuss] ask about passthrough support

[Arun Raghavan]

On Thu, 2011-09-29 at 16:32 +0800, Lu Guanqun wrote:
> Hi Arun,
> 
> On Thu, Sep 29, 2011 at 04:02:48PM +0800, Arun Raghavan wrote:
> [...]
> > Take a look at http://pulseaudio.org/wiki/Passthrough -- it gives you
> > the basic steps to set things up. I'll try to write up something more
> > comprehensive soon.
> 
> That's great. FYI. I've installed the git version of gstreamer.
> 
> > 
> > The DTS-in-wav case is a bit dicey. In most cases, you should be able to
> > get the data out of wavparse, pass it to dcaparse and pass that on to
> > pulsesink or pulseaudio directly.
> 
> I'm using this command:
> gst-launch filesrc location=test.wav ! wavparse ! dcaparse !
> pulseaudiosink
> But this will utilize the dtsdec plugin, and the data is not
> passthroughed...

So you're in a mode that supports digital output (S/PDIF or HDMI) and
the appropriate formats are set on the sink? If yes, then the output of
pactl list and gst-launch output with --gst-debug=pulse*:3 while playing
would help.

-- Arun