Error in video scaling

[JPM]

Hi,

The Android device (Samsung Galaxy mini 2, Android 2.3.6) is receiving a
video stream H264 over RTP over UDP.
The video resolution is 1024x768 but I want to downscaling it to 320x240
with this pipeline :

data->pipeline = gst_parse_launch("udpsrc port=5001 ! application/x-rtp,
payload=96 ! rtph264depay ! ffdec_h264 ! videoscale ! video/x-raw,
width=320, height=240 ! autovideosink sync=false", &error);

It does not work, there is the following error : Unable to build pipeline:
could not link videoscale0 to autovideosink0

I have tested several pipeline alternatives without any success.

Could you help me. Thanks in advance.
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