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

[Martin Schreiber]

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/alsadrop

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

Martin
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