Problem about VAAPI gstreamer plugins

[enienws]

We have been trying to play a video streaming through a RTSP server by using
vaapidecode and vaapisink gstreamer elements. But the problem is pipeline
constructed seems problematic and it does not work. Here is the pipeline:

gst-launch-1.0 rtspsrc
location=rtsp://192.168.1.15/media/video1?g726=rfc3551  ! rtph264depay !
vaapidecode ! vaapisink

The error message is as follows:

gstbasesrc.c(2865): gst_base_src_loop ():
/GstPipeline:pipeline0/GstRTSPSrc:rtspsrc0/GstUDPSrc:udpsrc2:

streaming task paused, reason not-linked (-1)

We are sure, vaapidecode and vaapisink elements are working properly. For
example, following pipeline decodes a 1080p movie on GPU without any
problems.

We think we should place a capsfilter before decode element but it did not
work too. In addition we have placed demuxer elements for an rtsp stream
such as: rtpptdemux but these did not even work.

Could you please help to decode an rtsp stream on GPU by using gstreamer
vaapi plugins?

Regards.



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