[gst-devel] gstreamer throughput is okay then slows down
Jan Schmidt
thaytan at noraisin.net
Thu Nov 12 21:34:11 CET 2009
On Thu, 2009-11-12 at 14:22 +0000, John Buckley wrote:
> Hello,
>
> I noticed last night that immediately following a fresh bootup the
> when using gst-launch the initial throughput looks okay (maybe 250ms
> delay). This I can work with and try to improve.
>
>
>
> However, as time goes by the delay becomes greater and greater and
> reaches as high as 10seconds eventually. <ctrl-c> and re-issuing the
> gst-launch command does not clear the delay.
^^^ This is a very strong hint that the problem is in the video
driver in the kernel, and not anything to do with GStreamer....
J.
>
>
>
> Here is my gst-launch command:
>
> #gst-launch v4l2src ! image/jpeg,width=320,framerate=\(fraction
> \)30/1 ! ffdec_mjpeg ! ffmpegcolorspace ! ximagesink sync=false
>
> or
>
> #gst-launch v4l2src ! image/jpeg,width=320,framerate=\(fraction
> \)30/1 ! jpegdec ! ffmpegcolorspace ! ximagesink sync=false
>
>
>
> Any ideas on how I can maintain the initial bootup performance and try
> to improve on that instead of having it go the other way?
>
>
>
> John Buckley
>
>
>
>
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--
Jan Schmidt <thaytan at noraisin.net>
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