How to control the frame rate in a gstreamer pipeline?

Question

I have astream encoded in 60fps, but my gstreamer pipeline is playing it in fps, so the video appears to be very slow. I have created a gstreamer pipeline as

appsrc name=src ! video/x-h264 ! decodebin ! autovideosink sync=false

The appsrc will push buffers into the decoder. Now I want to force some frame rate for the video that I am playing. I tried inserting a videorate in between decodebin and autovideosink. But it didnt work. Then I inserted framerate=30/1 for forcing the framerate as 30fps.. But that also didnt work; So how to force the framerate for the decoder in gstremer pipeline ?

score 8 · Answer 1 · answered Feb 23 '14 at 11:53

8

Without seeing the other pipelines you have tried, I came up with this:

gst-launch-1.0 filesrc location=movie.avi ! decodebin ! \
videorate ! "video/x-raw,framerate=5/1" ! autovideosink

movie.avi contains a 30fps video which is then fixed to 5fps before being displayed.

answered Feb 23 '14 at 11:53

stylesuxx

825
1
9
25

1

Would you explain why do we need double quotatopm in framerate parameter? – Cloud Cho Mar 24 '21 at 23:32
I don't think you need them, I just add them. – stylesuxx Mar 25 '21 at 10:22
Humm...I am confused. Do you mean I need `"video/x-raw,framerate=5/1"` or `video/x-raw,framerate=5/1` is also fine? – Cloud Cho Mar 25 '21 at 15:26
Yes, I think it doesnt matter – pedro_bb7 May 19 '23 at 13:46

How to control the frame rate in a gstreamer pipeline?

1 Answers1