[Bug 768195] v4l2: Add support for device capability

GStreamer (GNOME Bugzilla) bugzilla at gnome.org
Wed Jun 29 15:48:27 UTC 2016


https://bugzilla.gnome.org/show_bug.cgi?id=768195

--- Comment #1 from Luis de Bethencourt <luis at debethencourt.com> ---
This issue can be seen when using gst v4l2{src,sink} elements and vivid. vivid
is the Virtual Video Test Driver.

$ gst-launch-1.0 v4l2src device=/dev/video1 ! v4l2sink device=/dev/video2

Fails to negotiate the caps, it should work when passing input_types=0x9 as
module parameter to vivid. Looking at the logs with GST_DEBUG=*CAPS*:5 the only
difference is in the colorimetry. colorimetry=(string)2:4:7:1 for v4l2src and
colorimetry=(string)bt601 for v4l2sink.

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