[Bug 742087] videoconvert fails to map buffer from v4l2src

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=742087
  GStreamer | gst-plugins-base | 1.x

Nicolas Dufresne (stormer) <nicolas.dufresne> changed:

           What    |Removed                     |Added
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                 CC|                            |nicolas.dufresne at collabora.
                   |                            |co.uk

--- Comment #3 from Nicolas Dufresne (stormer) <nicolas.dufresne at collabora.co.uk> 2015-01-03 16:20:48 UTC ---
This looks like some metric provided by the kernel don't match GStreamer
expected metrics for this Y42B format. It is likely a kernel bug, at least it
was the case last time I have used a driver with such format supported. But
before doing too much, would it be possible to provide with a debug log. Try
with:

GST_DEBUG="v4l2*:7" gst-launch-1.0  v4l2src device=/dev/video0 !
'video/x-raw,format=Y42B,width=1024,height=768' ! videoconvert ! xvimagesink 2>
gst.log

Then use the attachment feature of bugzilla to share this log. Would be nice to
share the kernel version, driver/HW in used. It is unlikely one of us will
manage to reproduce, as this format is only produce by few HW, hence it's
unlikely one of us owns a camera to help with debugging. We could at least have
a look at the associated driver code.

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