Hi Hans, On Fri, 24 Jun 2016, Hans Verkuil wrote: > On 06/24/2016 05:57 PM, Hans Verkuil wrote: > > On 06/20/2016 09:10 PM, Laurent Pinchart wrote: > >> The metadata buffer type is used to transfer metadata between userspace > >> and kernelspace through a V4L2 buffers queue. It comes with a new > >> metadata capture capability and format description. > >> > >> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx> > > > > I am willing to Ack this, provided Sakari and Guennadi Ack this as well. They know > > more about metadata handling in various types of hardware than I do, so I feel > > their Acks are important here. > > Actually, I would like to see more about how applications can associate frames with > metadata (if such a correspondence exists). I think Laurent mentioned this in one of his patches, that the sequence number should be used to establish a correspondence, and this is also what my UVC patch does. Thanks Guennadi > There was an irc discussion about that here: > > https://linuxtv.org/irc/irclogger_log/v4l?date=2016-06-24,Fri > > Guennadi's uvc patches may be useful as a testbed for figuring this out. > > Regards, > > Hans >
