[pulseaudio-tickets] [PulseAudio] #410: LADSPA multichannel plugin support

[PulseAudio]

#410: LADSPA multichannel plugin support
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 Reporter:  AstralStorm         |       Owner:  lennart
     Type:  enhancement         |      Status:  new    
 Priority:  normal              |   Milestone:         
Component:  module-ladspa-sink  |    Severity:  normal 
 Keywords:                      |  
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 I've implemented missing LADSPA multichannel plugin support.

 Patch is for Pulseaudio 0.9.12, because that release is free from some
 rewinding bug hitting ladspa plugin a lot. (and I have it installed)
 Should work with 0.9.13 w/o much porting.

 What remains to be done is testing non-equal in/out port count plugins and
 adding some docs about expanding behavior.

 For example, in case of 4 in/2 out, the two spare output channels may be
 noise. I didn't specifically clean this case.
 If the number of channels requested is higher than number of output
 channels of the plugin, additional instances will be started iff the
 number is integrally divisible. You can't run 5 channels of output with a
 stereo plugin (having 2 outputs). Recommended solution is routing plugin.

 I think git will accept the patch, but I can update it if required.

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Ticket URL: <http://www.pulseaudio.org/ticket/410>
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