[gst-devel] multichannel audio with jacksink
tristan at sat.qc.ca
Mon May 26 19:39:46 CEST 2008
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
Additional debug info:
gstjackaudiosink.c(564): gst_jack_ring_buffer_acquire ():
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.
Wim Taymans wrote:
> On Mon, 2008-05-26 at 13:21 -0400, Tristan Matthews wrote:
>> 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.
>> I'd like to have each audiotestsrc be at a different frequency and on
>> its own channel.
>> Any ideas?
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