? caps for gst_buffer_add_reference_timestamp_meta

[Philippe De Muyter]

On Mon, Feb 01, 2021 at 04:30:14PM +0200, Sebastian Dröge wrote:
> On Mon, 2021-02-01 at 15:23 +0100, Philippe De Muyter wrote:
> > 
> > I recently discovered the new methods
> > gst_buffer_add_reference_timestamp_meta
> > and gst_buffer_get_reference_timestamp_meta you added to gstreamer.
> > 
> > As I don't find examples of their usage, could you tell me what you
> > would use as caps for a UTC timestamp provided by the v4l2 driver ?
> 
> The Decklink and AJA plugins use "timestamp/x-decklink-stream" and
> similar.
> 
> I think in your case for UTC it would make sense to use "timestamp/x-
> v4l2-utc" or so?

rather "timestamp/x-utc, source=v4l2", so that one can search for
"timestamp/x-utc" with gst_buffer_get_reference_timestamp_meta, no ?