[gstreamer-bugs] [Bug 638691] New: allow autovideosrc fall back to videotestsrc if /dev/video0 is busy

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=638691
  GStreamer | gst-plugins-good | git

           Summary: allow autovideosrc fall back to videotestsrc if
                    /dev/video0 is busy
    Classification: Desktop
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: alsuren at gmail.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


This has pissed me off repeatedly because it means that you can't call yourself
in empathy without digging around in gstreamer-properties every time, so I'm
fixing it.

It requires changes to v4l2src so that it probes the video device a bit harder
on null->ready.

I haven't made the same changes to v4lsrc from gst-plugins-base because:
<ocrete> alsuren: or just ignroe v4lsrc ? anyway, v4l is going away.
<alsuren> ocrete: as in sudo rm /usr/lib/gstreamer-0.10/libgstvideo4linux.so ?
<ocrete> yea.. or you can fix it, I think its more broken than v4l2src ;)

progress will be tracked on:
http://git.collabora.co.uk/?p=user/alsuren/gst-plugins-good.git;a=shortlog;h=refs/heads/autovideosrc

Once this is fixed thing that will be left to do now (for my perfect setup)
will be to create a v4l2src2 that picks /dev/video1 by default (the high-def
logitech webcam on my docking station), and install it with a very slightly
higher priority than v4l2src.

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