[gst-devel] multichannel audio with jacksink

[Wim Taymans]

On Mon, 2008-05-26 at 13:39 -0400, Tristan Matthews wrote:
> I'd tried something like that before, and it yields the following errors:
> 
> cannot deliver port registration request
> ERROR: from element /pipeline0/jackaudiosink0: Could not get/set 
> settings from/o
> n resource.
> Additional debug info:
> gstjackaudiosink.c(564): gst_jack_ring_buffer_acquire (): 
> /pipeline0/jackaudiosi
> nk0:
> Cannot allocate more Jack ports
> ERROR: pipeline doesn't want to preroll.
> Setting pipeline to NULL ...
> /pipeline0/jackaudiosink1.sink: caps = NULL
> /pipeline0/audioconvert1.src: caps = NULL
> /pipeline0/audioconvert1.sink: caps = NULL
> /pipeline0/audioconvert0.src: caps = NULL
> /pipeline0/audioconvert0.sink: caps = NULL
> /pipeline0/audiotestsrc1.src: caps = NULL
> /pipeline0/audiotestsrc0.src: caps = NULL
> FREEING pipeline ...
> 
> I think I might have to combine the audio into one 8 channel stream 
> before piping it to the jackaudiosink, as it doesn't seem to work with 
> multiple jackaudiosinks, however I'm not sure how I'd do this either.
> 
I'm working on a better fix now (include the element name in the port
name).

Wim

> -Tristan
> 
> 
> Wim Taymans wrote:
> > On Mon, 2008-05-26 at 13:21 -0400, Tristan Matthews wrote:
> >   
> >> Hi,
> >>
> >> I'd like to have a launchline that allows me to have multiple (up to 8) 
> >> audiotestsrc elements all outputting to a jackserver (on separate 
> >> channels). The mono version being:
> >>
> >> gst-launch -v audiotestsrc volume=0.5 freq=300 wave=sine ! audioconvert 
> >> ! jackaudiosink
> >>     
> >
> > Did you try:
> > 
> > gst-launch -v audiotestsrc volume=0.5 freq=300 wave=sine ! audioconvert 
> > ! jackaudiosink audiotestsrc volume=0.5 freq=500 wave=sine ! audioconvert ! jackaudiosink
> >
> > Simply adding more jackaudiosinks should do the trick.
> >
> > Wim
> >
> >   
> >> I'd like to have each audiotestsrc be at a different frequency and on 
> >> its own channel.
> >>
> >> Any ideas?
> >>
> >> Regards,
> >> Tristan
> >>
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