omx support

Nicolas Dufresne nicolas at
Sat Jan 14 20:23:36 UTC 2023

Hi James,

Le jeu. 12 janv. 2023, 19 h 46, James via gstreamer-devel <
gstreamer-devel at> a écrit :

> I've been trying to use OMX on rockpi 4. They have omx versions of h264
> enc and dec but due to a kernel bug on THAT kernel they don't run !!

Rockpi4 is a RK3399. It's a well supported SoC, except for it encoders.
There is no mainline encoding yet (there is on ChromeOS). But Rockchip
support (MPP) is fully open source and comes with working set of GStreamer
elements. The OMX stack is only supposed to be used by the Android JVM

I asked about gstreamer on their forum. It received ZERO replies. Lots of
> googling pointed at Mekotronics. Chatting with them they support omx on
> debian image only (not android, not ubuntu, not buildroot)

They seem to make a device based on RK3688 chip, witch is Rockchip top of
the the line. Appart from booting and showing a serial terminal, do not
expect much to work yet mainline Linux.

The vendor stack is not super stabl e, but works. They still provide the
same MPP library with full GStreamer support. You should not consider OMX.


> I want preview and record a couple of channels with audio on the recording
> so I'm looking for omx 1080 display and for enc for recording on ARM.
> I ordered the above, but am still waiting a month later "Sorry, the whole
> factory got covid"
> Are there any nice stories from people who have done done sp on arm.

"sp" ?

Ive got my system running near perfectly on i7. I'll post another thread to
> ask about that
> James
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