pulse: handle reading pulse stream hole

alsa-project/alsa-plugins pull request #17 was opened from i-garrison:

If there is a hole in pulse stream, handle it by generating silence.

This should fix #16

Request URL : https://github.com/alsa-project/alsa-plugins/pull/17 Patch URL : https://github.com/alsa-project/alsa-plugins/pull/17.patch Repository URL: https://github.com/alsa-project/alsa-plugins