trigger timestamp

[Takashi Iwai]

On Thu, 08 Jul 2021 18:11:13 +0200,
Muni Sekhar wrote:
> 
> On Thu, Jul 8, 2021 at 6:02 PM Takashi Iwai <tiwai at suse.de> wrote:
> >
> > On Thu, 08 Jul 2021 14:19:12 +0200,
> > Muni Sekhar wrote:
> > >
> > > On Thu, Jul 8, 2021 at 4:59 PM Takashi Iwai <tiwai at suse.de> wrote:
> > > >
> > > > On Thu, 01 Jul 2021 01:41:29 +0200,
> > > > Muni Sekhar wrote:
> > > > >
> > > > > Hi all,
> > > > >
> > > > > >From the user space test application , Is it possible to get the
> > > > > trigger timestamp corresponding to SNDRV_PCM_TRIGGER_START &
> > > > > SNDRV_PCM_TRIGGER_STOP events for audio playback capture?
> > > >
> > > > That's exactly what trigger_tstamp of snd_pcm_status corresponds for.
> > > Does aplay and arecord have any command line options to get the
> > > trigger_tstamp? If not how to get it?
> >
> > Implement some code :)
> >
> > Alternatively you can check the proc output contents in
> > /proc/asound/card*/pcm*/sub*/status.  It'd be difficult to see the
> > stop timestamp, though (as the application closes the stream
> > immediately after that).
> How to specify if i want the REALTIME/MONOTONIC_RAW trigger_time
> timestamp type output in  /proc/asound/card*/pcm*/sub*/status?

It's not provided in a standard tool and you have to write some
program by yourself, I suppose.


Takashi