Thanks, Khem. On 11/22/20 11:15 PM, Khem Raj wrote:
On Thu, Nov 19, 2020 at 7:38 PM Rudolf J Streif <[email protected]> wrote:I am trying to play back mp4 video (venerable Big Buck Bunny at this time) on RPi3.I added gstreamer1.0, gstreamer1.0-omx and the plugins to the image. libgstomx.so is installed in usr/lib/gstreamer-1.0 on target. However, gst-inspect-1.0 | grep omx does not return any results. Consequently, gst-launch-1.0 filesrc location="/home/root/kiosk/kiosk/videos/bunny.mp4" ! qtdemux ! h264parse ! omxh264dec ! kmssink WARNING: erroneous pipeline: no element "omxh264dec" I guess I am missing something somewhere but I don't know what.are you using userland for graphics or vc4 ?
Yes, I am. I actually discovered what the problem was: I built my system for 64-bit but Broadcom's proprietary libraries are 32-bit. I switched the system to 32-bit and now gst-inspect shows omx support.
Unfortunately, decoding is still not working. This works:gst-launch-1.0 -v videotestsrc ! omxh264enc ! h264parse ! avdec_h264 ! autovideosink
However, this does not:gst-launch-1.0 -v videotestsrc ! omxh264enc ! h264parse ! omxh264dec ! autovideosink
I also tried with kmssink with the same results.I am using EGLFS backend. It appears to me that there is something off with the omxh264dec decoder plugin passing the decoded buffers on to the output sink. Unfortunately, I have not been able to figure out what that could be.
Ultimately, this would go into a Qt application. I have never had any issues with EGLFS and Qt hence I would be reluctant to switch the backend to Wayland/Weston or X11. But of course I also don't know if omxh264dec would work with either one of those backends.
Thanks, Rudi
-- Rudolf J Streif CEO/CTO ibeeto +1.855.442.3386 x700
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