[LAU] [solved, kind of] jack and flash

[Wolfgang Woehl]

naysayer:

> Has anyone worked out a neat way to get firefox (flash, youtube,
> real audio, etc) working with Jack yet. i would love to have a
> situation where i could have Jack running permanently but this is
> the one thing preventing me.

This has bugged me for some time now too. Your question triggered a 
little quest and I've just proof-recorded some youtube snippet with 
ardour. Done via pulseaudio. Here's the list:

* pulseaudio has jack modules. You get sink and source.

* For flash audio you will need a special library for flashplayer that 
will hook into pulseaudio. Details on 
http://www.pulseaudio.org/wiki/FlashPlayer9Solution

* For other video and audio from firefox mplayerplug-in seems to do 
it. Although its docs don't say so it plays the audio from, for 
example, http://streams.br-online.de/bayern2.smil (Bavarian radio, 
Zuendfunk on right now. They say that would be a RealPlayer stream, 
but is it really?)

-----------
This is a basic pulseaudio configuration for use with jack, put it in 
~/jackd.pa:

###
load-module module-jack-sink channels=2 channel_map=left,right
load-module module-jack-source channels=2 channel_map=left,right
###
------------
Maybe tweak /etc/pulse/daemon.conf and be sure to appreciate that "#" 
and ";" both mean "comment" with pulseaudio, sheesh!
Run your jackd
Run "pulseaudio -n -F ~/jackd.pa". (-n tells pulseaudio to not 
use /etc/pulse/default.pa)
Run "pavucontrol" to see audio streams and in/outputs ("Adobe Flash" 
stream will show up when you open one in firefox).

About it.
Wolfgang