[gstreamer-bugs] [Bug 635938] New: gst-camera video too dark at 320x240, OK at 640x480

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=635938
  GStreamer | don't know | 0.10.29

           Summary: gst-camera video too dark at 320x240, OK at 640x480
    Classification: Desktop
           Product: GStreamer
           Version: 0.10.29
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: don't know
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: bandurvp at acanac.net
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


The video stream shown by gst-camera is very dark in normal light conditions
when a resolution of 320x240 is selected.  When 640x480 the brightness is OK.

Steps to Reproduce:
------------------
Run gst-camera and observe video feed for the various resolution settings.

Actual Results:
--------------
Video feed is too dark, unless pointed directly at a source of light at 320x240
resolution, whereas it is fine at 640x480.

Expected Results:
----------------
Brightness should be independent of the capture resolution.

Build Date and Platform:
-----------------------
Version 0.10.29, Gentoo Linux for PPC, Kernel version 2.6.34.

Additional Information:
----------------------
Using camera Logitech QuickCam for Notebooks with kernel driver
``gspca_zc3xx''.  As an example, brightness is fine when recording using
ffmmpeg, whereas Ekiga shows the same brightness anomaly as described above.

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