I have a pc with ubuntu 18.04 where I've installed gstreamer 1.14.1 from repository. This pc is connected to an IP camera from which I receive a h264 stream via rtsp. I'm using the following pipeline for testing:
gst-launch-1.0 rtspsrc location="rtsp://root:root@192.168.0.91:554/axis-media/media.amp?videocodec=h264&resolution=3840x2160&compression=0&clock=0&date=0&fps=25&videokeyframeinterval=10&videobitrate=0&camera=1" protocols=GST_RTSP_LOWER_TRANS_TCP latency=0 ! rtph264depay ! queue ! vaapih264dec ! videoconvert ! video/x-raw, format=BGR ! fakesink dump=true
and everything works fine, I can see the dumped data (if I attach a display sink I can see the stream). If I run the command
gst-inspect-1.0 vaapi I can see 16 features and vaapih264dec is included.
As long as I am logged on this pc for testing everything's good. But this pc must work remotely and an application using a similar pipeline should run without the need to be logged in. So without logging in I've connected to the pc via ssh but the same pipeline returns me the error
WARNING: erroneous pipeline: no element "vaapih264dec"
and the command
gst-inspect-1.0 vaapi shows 0 features.
As suggested in
this similar post I've tried to put
DISPLAY= WAYLAND_DISPLAY= in front of the pipeline but still, same result.
I then proceeded to build gstreamer (1.15.2) from source building gstreamer-vaapi only with drm (
--enable-drm=yes --enable-x11=no --enable-glx=no --enable-wayland=no --enable-egl=no) and for what I can see it compiled and installed correctly. Compiled also the intel driver i965.
Via ssh I've exported the following environment variable to be sure not to conflict with old gstreamer from repo:
PATH, LD_LIBRARY_PATH, LIBVA_DRIVERS_PATH, LIBVA_DRIVER_NAME but still i get
no element "vaapih264dec" and
gst-instpect shows 0 features.
Do you have any suggestions?
Many thanks
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