[alsa-devel] [PATCH] ALSA: snd-aloop: make preallocated buffer size configurable
pierre-louis.bossart at linux.intel.com
Fri Sep 23 23:03:31 CEST 2011
> Well, if it's only about snd-aloop, another option would be to use
> vmalloc'ed buffer for aloop. Since it's no hardware buffer, it's
> more system-friendly, and you don't need a pre-allocation.
> Again, an untested patch is below.
I wasn't sure why physically-contiguous memory would be required, just
reduced it, but it makes sense to remove it altogether.
I used a double loopback, one in alsa and one in pulseaudio. Works fine.
$ pactl load-module module-loopback source=alsa_input.1.analog-stereo
$ aplay -Dhw:1,1 viol-1mn.wav
For some reason I couldn't apply the patch as is, here's what I used
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