STM32MP257F-DK GStreamer problem

[Ronte.1]

Hello,

I'm using Buildroot environment with the STM32MP257F-DK board. I'm testing GStreamer with a simple pipeline:

gst-launch-1.0 videotestsrc ! autovideosink

When I first run it there is no problem. The test video shows fine on the HDMI monitor. But when I run it again second time there are errors : pipeline doesn't want to preroll. And all attempts after that fail too. It works only one time after the boot.

There is additional debug info: drmModeSetPlane failed: No space left on device (28).

Maybe some setting is missing ?

BR

raimo

[PPAGE.13]

Hi,

in OSTL Yocto based environment, there is no issue running several times your gstreamer command.

In you Builtroot env, you can try to check CMA  memory with this command into a shell script:

"while true ; do grep CmaFree /proc/meminfo ; sleep 3 ; done"

And also try a bigger and HW accelerated mp4 video with the similar command to that:

su -l weston -c "gst-launch-1.0 filesrc location=/usr/local/demo/medical/videos/air_1024.mp4 ! qtdemux ! h264parse ! queue ! v4l2slh264dec ! autovideosink"

(replace mp4 file with yours)

Note: to check HW VPU is activated, check interrrupts number:

"cat /proc/interrupts | grep vdec"

BR,

Philippe.

[Ronte.1]

Hi,

I did the CMA check, first it shows CmaFree 129400kB

After a succesful gstreamer launch there was 120976 kB, and after next failing tries there's 128800 kB and it doesnt change after this.  

BR Raimo

[PPAGE.13]

Hi,

could you please add "-v" option in you gstreamer command to get more info.

Philippe.