Need to monitor local recording event

[Cypresslin]

Need to monitor local recording event.

[Cypresslin]

This can be done by subscribing to PulseAudio, with command pactl subscribe, check for source-output event.

Sample output:

phablet@ubuntu-phablet:~$ pactl subscribe

Before start recording

Event 'new' on client #49
Event 'remove' on client #49
Event 'new' on client #50
Event 'remove' on client #50
Event 'new' on client #51
Event 'change' on client #51
Event 'new' on client #52
Event 'change' on client #52

Start recording

Event 'new' on source-output #7
Event 'change' on source-output #7
Event 'change' on source-output #7
Event 'remove' on source-output #7
Event 'remove' on client #52
Event 'remove' on client #51

Stop recording

Event 'remove' on client #16
Event 'remove' on client #17
Event 'remove' on source-output #0
Event 'remove' on client #21
Event 'remove' on client #20
Event 'remove' on source-output #2
Event 'remove' on client #29
Event 'remove' on client #28
Event 'remove' on source-output #3
Event 'change' on source #1
Event 'remove' on client #33
Event 'remove' on client #32