[gstreamer-bugs] [Bug 630888] v4l2sink does not cope with v4l2loopback kernel module

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=630888
  GStreamer | gst-plugins-good | unspecified

--- Comment #5 from IOhannes <zmoelnig at iem.at> 2010-10-09 12:35:06 UTC ---
Created an attachment (id=172005)
 View: https://bugzilla.gnome.org/attachment.cgi?id=172005
 Review: https://bugzilla.gnome.org/review?bug=630888&attachment=172005

don't call ioctlS for VIDEO_OVERLAY if not explicitely requested

the current v4l2sink assumes that the device supports overlays (for which i see
no reason); it always calls VIDIOC_*_FMT for a VIDEO_OVERLAY buffer, which
eventually fails (if the driver does not support overlay). the attached patch
only uses G/S_FMT on VIDEO_OVERLAY if the user explicitely requested
overlay-features by setting one of the "overlay-*" properties.

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