How to change the resolution of image in gstbuffer?

I am receiving data over UDP,

In Pullbuffer callback function of appsink, am retrieving the data into gstbuffer.

but that data is of 1920X1080 image buffers.

But, i would like to convert then into 720X576 resolution and stream that data.

How can i do this using gstreamer?

Solution

By using videoscale component, and videocaps i resized the image successfully.

sample pipeline:

gst-launch-1.0 videotestsrc ! videoscale ! video/x-raw,width=720,height=576 ! xvimagesink