[gstreamer-bugs] [Bug 475424] New: [v4l2] uvcvideo Macbook iSight webcam not working (regression)

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-good | Ver: HEAD CVS
           Summary: [v4l2] uvcvideo Macbook iSight webcam not working
                    (regression)
           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: gnomebugzilla at sukimashita.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: 2.17/2.18
   GNOME milestone: Unspecified


Macbook Built-In iSight does no longer work after upgrading Gtreamer. The
regression somehow happend during the transition from ugly to good.

Testing using simple pipeline "gst-launch v4l2src ! ffmpegcolorspace !
ximagesink"

In 0.10.5, the camera did only work with "gst-launch v4l2src !
video/x-raw-yuv,format=\(fourcc\)UYVY,width=320,height=240,framerate=30/1 !
ffmpegcolorspace ! ximagesink". Setting a higher resolution such as 640x480,
which worked before, simply fails.

In 0.10.6, there is no way to get it working. "ERROR: from element
/pipeline0/v4l2src0: Could not negotiate format"

In CVS, it endless loops with a critical "(gst-launch-0.10:7147):
GStreamer-CRITICAL **: gst_value_set_fraction: assertion `denominator != 0'
failed"

Attaching debug logs of 0.10.6 and CVS.

Mind that the cam works with ffmpeg recording and mplayer.


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