[alsa-devel] [BUG] snd_pcm_drop() does not stop the PCM immediately

Hi, The documentation states: " This function stops the PCM immediately. The pending samples on the buffer are ignored. " This does not work for the device "sysdefault" where a piece of the old sound and the new sound overlap, see attached alsadrop1.c testprogram. It is OK with the "default" device which is wired over Pulseaudio, uncomment alsadrop1.c:55 in order to test. The project is here: https://gitlab.com/mseide-msegui/mseuniverse/tree/master/testcase/audio/c/al...

Environment: openSUSE Leap 42.3, see attached alsa-info.tar.gz.

Martin