how to dynamically change video frame rate

Bert Douglas bertd at
Sat Mar 5 15:33:11 PST 2011

Yes.  But not in shell script.
Python can do it.
 On Mar 5, 2011 2:28 PM, "Tom" <fb8fb8 at> wrote:
> I use
> gst-launch filesrc "location=video/1.MPG" ! decodebin ! videorate !
> video/x-raw-yuv, width=640,height=480,framerate=25/1 ! ffmpegcolorspace !
> jpegenc ! multipartmux ! tcpserversink host= port=$portNumber
> to stream a video and can change the video frame rate in this way.
> But in this way the frame rate is fixed (i.e., framerate=25/1 here).
> How can I change the frame rate dynamically?
> I mean, during the streaming of this video, I can change the framerate
> anytime I want.
> Thanks!
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