How to change framerate dynamically

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[Stefan Sauer]

On 07/04/11 13:12, [hidden email] wrote:

Hi,

 

I can use gstreamer to stream a mpg video from one Linux PC to another.

The framerate of the video can be changed by this command:

 

gst-launch filesrc "location= 1.MPG" ! decodebin ! videorate ! video/x-raw-yuv, width=640,height=480,framerate=15/1 ! ffmpegcolorspace ! jpegenc ! multipartmux ! tcpserversink host=192.168.2.1 port=5000

In this command, framerate is set to be 15. The video is streamed at framerate 15 from beginning to end.

But I want to change framerate dynamically, which means during the streaming I can change framerate anytime. After changing framerate, the video will continue but stream at the new framerate.

You can change the playback rate using the 'rate' fields on the seek event.

Stefan

 

How can I change framerate in this way?

Thanks!

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Il 04/07/2011 22:12, [hidden email] ha scritto:

Hi,

 

I can use gstreamer to stream a mpg video from one Linux PC to another.

The framerate of the video can be changed by this command:

 

gst-launch filesrc "location= 1.MPG" ! decodebin ! videorate ! video/x-raw-yuv, width=640,height=480,framerate=15/1 ! ffmpegcolorspace ! jpegenc ! multipartmux ! tcpserversink host=192.168.2.1 port=5000

In this command, framerate is set to be 15. The video is streamed at framerate 15 from beginning to end.

But I want to change framerate dynamically, which means during the streaming I can change framerate anytime. After changing framerate, the video will continue but stream at the new framerate.

 

How can I change framerate in this way?

you could try to change the caps for the capsfilter element after the videorate element, however this doesn't work for me:

https://bugzilla.gnome.org/show_bug.cgi?id=647648

let us know if you find a solution,

Nicola

Thanks!

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[Stefan Sauer]

On 07/05/11 11:46, [hidden email] wrote:

where I can find the seek event?

in the api docs. Install devhelp as a help-browser and the docs packages or read them online on http://gstreamer.freedesktop.org or http://library.gnome.org

Stefan

Thanks!

 

Tom

 

 

 

 

---

From: Stefan Kost <[hidden email]>

To: Discussion of the development of and with GStreamer <[hidden email]>

Time: 2011-07-04  20:37:58

Carbon Copy: <>

Subject: Re: How to change framerate dynamically

On 07/04/11 13:12, [hidden email] wrote:

Hi,

 

I can use gstreamer to stream a mpg video from one Linux PC to another.

The framerate of the video can be changed by this command:

 

gst-launch filesrc "location= 1.MPG" ! decodebin ! videorate ! video/x-raw-yuv, width=640,height=480,framerate=15/1 ! ffmpegcolorspace ! jpegenc ! multipartmux ! tcpserversink host=192.168.2.1 port=5000

In this command, framerate is set to be 15. The video is streamed at framerate 15 from beginning to end.

But I want to change framerate dynamically, which means during the streaming I can change framerate anytime. After changing framerate, the video will continue but stream at the new framerate.

You can change the playback rate using the 'rate' fields on the seek event.

Stefan

 

How can I change framerate in this way?

Thanks!

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel