Hi Olivier,
On Wednesday 02 April 2014 00:31:59 Olivier Langlois wrote:
> On Tue, 2014-04-01 at 15:49 +0200, Laurent Pinchart wrote:
> > On Sunday 30 March 2014 00:23:01 Olivier Langlois wrote:
> > > > > Yes. ffmpeg uses wall clock time to create timestamps for audio
> > > > > packets from ALSA de
Hi Laurent,
On Tue, 2014-04-01 at 15:49 +0200, Laurent Pinchart wrote:
> Hi Olivier,
>
> On Sunday 30 March 2014 00:23:01 Olivier Langlois wrote:
> > Hi Laurent,
> >
> > > > Yes. ffmpeg uses wall clock time to create timestamps for audio packets
> > > > from ALSA device.
> > >
> > > OK. I suppo
Hi Olivier,
On Sunday 30 March 2014 00:23:01 Olivier Langlois wrote:
> Hi Laurent,
>
> > > Yes. ffmpeg uses wall clock time to create timestamps for audio packets
> > > from ALSA device.
> >
> > OK. I suppose I shouldn't drop support for the realtime clock like I
> > wanted to then :-)
> >
> >
Hi Laurent,
> > Yes. ffmpeg uses wall clock time to create timestamps for audio packets from
> > ALSA device.
>
> OK. I suppose I shouldn't drop support for the realtime clock like I wanted
> to
> then :-)
>
> > There is a bug in ffmpeg describing problems to synchronize audio and
> > the vid
> > >
> > > Before applying this, I'm curious, do you have a use case for realtime
> > > time stamps ?
> >
> > Yes. ffmpeg uses wall clock time to create timestamps for audio packets from
> > ALSA device.
>
> OK. I suppose I shouldn't drop support for the realtime clock like I wanted
> to
> t
Hi Olivier,
On Friday 28 March 2014 17:27:08 Olivier Langlois wrote:
> On Fri, 2014-03-28 at 17:20 +0100, Laurent Pinchart wrote:
> > On Friday 28 March 2014 01:42:38 Olivier Langlois wrote:
> > > timestamps in v4l2 buffers returned to userspace are updated in
> > > uvc_video_clock_update() which
Hi Laurent,
On Fri, 2014-03-28 at 17:20 +0100, Laurent Pinchart wrote:
> Hi Olivier,
>
> Thank you for the patch.
>
> On Friday 28 March 2014 01:42:38 Olivier Langlois wrote:
> > timestamps in v4l2 buffers returned to userspace are updated in
> > uvc_video_clock_update() which uses timestamps f
Hi Olivier,
Thank you for the patch.
On Friday 28 March 2014 01:42:38 Olivier Langlois wrote:
> timestamps in v4l2 buffers returned to userspace are updated in
> uvc_video_clock_update() which uses timestamps fetched from
> uvc_video_clock_decode() by calling unconditionally ktime_get_ts().
>
>
timestamps in v4l2 buffers returned to userspace are updated in
uvc_video_clock_update() which uses timestamps fetched from
uvc_video_clock_decode() by calling unconditionally ktime_get_ts().
Hence setting the module clock param to realtime have no effect
before this patch.
This has been tested w
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