glimagesink FPS client-redraw
Arnaud Loonstra
arnaud at sphaero.org
Mon Nov 17 05:51:02 PST 2014
On 11/16/2014 04:24 PM, Nicolas Dufresne wrote:
>
> Le 2014-11-15 17:44, Arnaud Loonstra a écrit :
>> I'm testing some client-redraw setups similar to the provided cube
>> example:
>> http://cgit.freedesktop.org/gstreamer/gst-plugins-bad/tree/tests/examples/gl/generic/cube
>>
>>
>> When I use a videotestsrc and the glimagesink pipeline I'm getting
>> around 60 client-redraws per second.
>> If I change that into a v4l2src for example it drops to around 5 calls
>> per second.
> I don't know exactly what is going on, though you need to be aware that
> to make a comparison between videotestsrc and v4l2src, you should use
> is-live=1 on videotestsrc element. A final note that you should test
> framerate coming out of your v4l2src, most will do much less then
> configured framerate in low light. It would be some other problem of
> course.
>
> Nicolas
Thanks for the pointer, setting is-live does make a difference. The draw
rate drops to 30 draws per second. Still much more than the 5fps from
v4l2src. Any pointers to how I can get the fps from the v4l2src?
Rg,
Arnaud
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