On Wed, 14 Mar 2018 15:59:07 +0100, Martin Schreiber wrote: > > 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. It's a best-effort base stopping mechanism with dmix, so it's a sort of expected behavior, unfortunately. Due to its nature of implementation, scratching off the existing data from the mixed buffer isn't so trivial for now. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
