[gstreamer-bugs] [Bug 563574] New: v4l2src should capture in non-blocking mode

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-good | Ver: HEAD CVS
           Summary: v4l2src should capture in non-blocking mode
           Product: GStreamer
           Version: HEAD CVS
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: sjoerd at luon.net
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


My webcam (hardware/kernel?) has a nasty bug where the streaming seems to fail
to start. Causing the v4l2src element to block on a VIDEOC_DQBUFF ioctl
forever. 

While this is obviously a bug on a lower level, it does reveal the issue that
gst open the v4l2 device in blocking mode. cameras can potentially capture at
very low rates (capture time of second or more), it's quite annoying that in
the worst case setting the element to state NULL would then cost of the order
of seconds..


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