Greetings, I'm testing the VP9 hantro kernel support on an IMX8MM with the following: - imx8mm-venice-gw73xx-0x board with a 800x480 MIPI DSI display - v5.16-rc3 kernel with: - [PATCH v7 00/11] VP9 codec V4L2 control interface - IMX8MM DSI support added (some old patchsets) - GStreamer 1.19.3+ with vp9 backported, hantro support added, and imx8mm display support added - gstreamer 1.19.3 (git sha b5c07e11ca) I see the v4l2 stateless decoder: [gst-main] root@focal-venice:~/gstreamer/build# gst-inspect-1.0 v4l2codecs | grep v4l2slvp9dec v4l2slvp9dec: V4L2 Stateless VP9 Video Decoder I'm generating a test stream on an x86 with GStreamer 1.19.3 (git sha 05458f05e0): gst-launch-1.0 -v videotestsrc ! video/x-raw,width=800,height=480 ! vp9enc ! rtpvp9pay ! udpsink host=172.24.33.15 port=9001 I'm decoding on imx8mm with: gst-launch-1.0 udpsrc port=9001 caps = 'application/x-rtp,media=(string)video, clock-rate=(int)90000, encoding-name=(string)VP9,payload=(int)96, ssrc=(uint)2246741422, timestamp-offset=(uint)3441735424, seqnum-offset=(uint)30250,a-framerate=(string)30' ! rtpvp9depay ! v4l2slvp9dec ! fakesink ^^^ this fails with no-negotiated Things seem to be very bleeding edge with VP9 so I'm not sure if I need very specific gstreamer versions here or not. Best regards, Tim
