[Gstreamer-bugs] [Bug 145399] New: - v4lsrc probably needs more options to overide the default behavior

[bugzilla-daemon at bugzilla.gnome.org]

http://bugzilla.gnome.org/show_bug.cgi?id=145399
GStreamer | gst-plugins | Ver: 0.8.2

           Summary: v4lsrc probably needs more options to overide the
                    default behavior
           Product: GStreamer
           Version: 0.8.2
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins
        AssignedTo: gstreamer-maint at bugzilla.gnome.org
        ReportedBy: filamoon at hotmail.com
         QAContact: gstreamer-maint at bugzilla.gnome.org


I struggled a lot to make my webcam work. It's a Labtech Quickcam USB camera 
which only supports BGR format (bpp=24, depth=24).

I made two modifications:
1) change MIN_BUFFERS_QUEUED from 2 to 1. My quickcam driver only opens 1 
buffer.
2) In gst_v4lsrc_open(), I modified the palette[] array by moving forward 
VIDEO_PALETTE_RGB24 to before VIDEO_PALETTE_RGB555. Otherwise v4lsrc will use 
RGB555, instead of RGB24.

In short, I think probably v4lsrc needs two options to set the minimum buffer 
number and the preferred color format.

If you agree, I can try to add them for you.

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