[MPlayer-users] mplayer play 4 audio chn file to jack

andre castro andrecastro at c-e-m.org
Wed Nov 13 14:32:18 CET 2013

Thanks Reimar, but didn't work
mplayer2 test_4chan_2.wav -channels 4 -ao jack:noconnect
trows an error, it doesn't recognize the noconnect argument
Could not parse arguments at the position indicated below:

-ao jack commandline help:
Example: mplayer -ao jack:port=myout
   connects MPlayer to the jack ports named myout

   port=<port name>
     Connects to the given ports instead of the default physical ones
   name=<client name>
     Client name to pass to JACK
     Estimates the amount of data in buffers (experimental)
     Automatically start JACK server if necessary
Failed to initialize audio driver 'jack:noconnect'
Could not open/initialize audio device -> no sound.
Audio: no sound
Video: no video

Do you reckon, that if I compile a more recent version, I will be able to use noconnect?


On 11/13/2013 02:11 PM, Reimar Döffinger wrote:
> andre castro <andrecastro at c-e-m.org> wrote:
>> Mplayer geniuses,
>> Do you have any idea how to reproduce a 4 audio channel wav file, using
>> mplayer and send it to jack
>> Do you have any idea of what could I be doing wrong??
> If you set MPlayer to automatically connect its output ports, it adjust the number of channels to the number of ports available connect to.
> You can use -ao jack:noconnect to avoid this.
>> I am running Debian (Jessy) and mplayer 1.1-4.7
> However that version is probably too old to have that feature.
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