Plugin exposing an ALSA device

Robert Bielik robert.bielik at
Wed Oct 14 03:17:29 PDT 2015

Hi Antonio,

Den 2015-10-14 kl. 12:10, skrev Antonio Ospite:
> Hi. What do you mean by "expose its input"?
> To fake alsa devices you can use alsa loop devices
> (modprobe snd-aloop); and if for instance you want to export your app
> _output_ write to the loop device with alsasink:
>    gst-launch-1.0 audiotestsrc ! audioconvert ! alsasink device="hw:Loopback,0,0"
> and then the audio will be available to ALSA apps on hw:Loopback,1,0
I mean the precise opposite, like:
gst-launch-1.0  alsafakeoutputdevice_src device="<fancy dev name>" ! 
audioconvert ! alsasink

And with this, an output only ALSA device called "<fancy dev name>" 
should be availble for any audio application to use.


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