Video4Linux on RPi working now on UxPlay: could be backported to RPiPlay.

[fduncanh]

GStreamer OpenMAX plugin omxh264dec was broken for a long time, but now the development branch of GStreamer has got
Video4Linux plugin v4l2h264dec working for hardware accelerated video on the R Pi GPU. This is the one to be supported in the future on Pi.

see FDH2/UxPlay#70 The GStreamer-based RPiPlay offspring UxPlay on RPi OS bullseye (32 or 64 bit) and Manjaro-Arm-RPi4 works with the patched plugin. (backports to GStreamer 1.18.4 (bullseye) and 1.20.0 (Manjaro) are available)

EDIT: The patch for GStreamer-1.18.5 (used by Ubuntu 20.10) is also now available,

[FD-]

Very interesting indeed!

[fduncanh]

Here are some reports of success of UxPlay with Raspberry Pi model 4B using Video4Linux2 for GPU h264 decoding

[kang000feng]

Very interesting indeed!

Dear developer,good day! May I ask how to Make sure the DUMP flags are not active ? How to check it? Thank you

[fduncanh]

No idea what DUMP flags are. You can test UxPlay on RPi with Video4Linux2 at the UxPlay site
https://github.com/FDH2/UxPlay . you will need to patch the gstreamer Video4Linux2 plugin as explained there, until GStreamer-1.22 is released. This is for RPi OS Bullseye, Ubuntu 22.04, etc. There is no support for older GStreamer < 1.18.4, as in a Debian Buster-based OS with 1.16.2

[kang000feng]

No idea what DUMP flags are. You can test UxPlay on RPi with Video4Linux2 at the UxPlay site https://github.com/FDH2/UxPlay . you will need to patch the gstreamer Video4Linux2 plugin as explained there, until GStreamer-1.22 is released. This is for RPi OS Bullseye, Ubuntu 22.04, etc. There is no support for older GStreamer < 1.18.4, as in a Debian Buster-based OS with 1.16.2

Dear developer, DUMP flags is from your README.md, quote"For best performance:

Use a wired network connection
Compile with -O3 (cmake --DCMAKE_CXX_FLAGS="-O3" --DCMAKE_C_FLAGS="-O3" ..)
Make sure the DUMP flags are not active
Make sure you don't use the -d debug log flag
Make sure no other demanding tasks are running (this is particularly important for audio on the Pi Zero)"

[fduncanh]

@kang000feng
RpiPlay and UxPlay are now different projects. UxPlay supports RPi using gstreamer and video4linux2.(32 and 64 bit) RpiPlay supports RPi using Omx (32 bit) / If you need UxPlay support, and its documentation doesnt solve it, post your issue there.