[gstreamer-bugs] [Bug 477456] New: [v4l2src] my webcam is not working anymore

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-good | Ver: 0.10.16
           Summary: [v4l2src] my webcam is not working anymore
           Product: GStreamer
           Version: 0.10.16
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: gdesmott at gnome.org
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Since I switched from Feisty (gst-plugins-good 0.10.5) to Gutsy
(gst-plugins-good 0.10.6) I can't use my webcam anymore.
It's a Logitech QuickCam Pro 5000 (driver uvc-video [1]).

When I try using gstreamer-properties I got this error:
gstreamer-properties-Message: Error running pipeline 'Video for Linux 2
(v4l2)': Could not get buffers from device '/dev/video0'.
[v4l2src_calls.c(1025): gst_v4l2src_capture_init
(): /pipeline0/v4l2src3:
error requesting 0 buffers: Cannot allocate memory]

Here is the debug output I got using GST_DEBUG_NO_COLOR=1 GST_DEBUG=5:
http://projects.collabora.co.uk/~cassidy/gst.log.gz
Feel free to ask for output using other debug options of course.

I started to track this problem with the maintainer of the uvc-video driver.
See [2] and replies. It seems v4l2src tries to use the v4l2 read method instead
of mmap (read is currently not yet implemented in uvc-video).

Thanks for your help


[1] http://linux-uvc.berlios.de/
[2]
https://lists.berlios.de/pipermail/linux-uvc-devel/2007-September/002099.html


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