[gst-devel] gstreamer throughput is okay then slows down

[Jan Schmidt]

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>