On Mon, 19 Nov 2007, Heikki Lindholm wrote: > Heikki Lindholm kirjoitti: > > Hello list, > > > > I took up some old dusty code of mine that uses snd_pcm_state followed > > by snd_pcm_status_get_tstamp when in capture mode. The code used to > > work, but now the returned timestamps are all zeroes. Is there some API > > change done recently or is the whole timestamping deprecated or > > something? I've tried with different drivers on ubuntu's alsa .14 and > > gentoo's .14. I've also tried mmap'ed and r/w modes, and I'm setting the > > TSTAMP_MMAP sw param. > > I figured out that this doesn't happen when using hw:x,y devices. Is it > a documented feature that some (software?) devices don't fill in timestamps? I think that it should be fixed. Could you send us 'snd_pcm_dump()' for a non-working device? It's probably ommited code in direct pcm plugins (dmix & etc.). Jaroslav ----- Jaroslav Kysela <perex@xxxxxxxx> Linux Kernel Sound Maintainer ALSA Project _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
