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.

[Ronte.1]

Hi,

Here's the log file when launch fails:

# gst-launch-1.0 videotestsrc ! autovideosink -v
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstKMSSink:autovideosink0-actual-sink-kms: display-width = 1920
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstKMSSink:autovideosink0-actual-sink-kms: display-height = 1080
/GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0.GstPad:src: caps = video/x-raw, format=(string)BGRA, width=(int)320, height=(int)240, framerate=(fraction)30/1, multiview-mode=(string)mono, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0.GstGhostPad:sink.GstProxyPad:proxypad0: caps = video/x-raw, format=(string)BGRA, width=(int)320, height=(int)240, framerate=(fraction)30/1, multiview-mode=(string)mono, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstKMSSink:autovideosink0-actual-sink-kms.GstPad:sink: caps = video/x-raw, format=(string)BGRA, width=(int)320, height=(int)240, framerate=(fraction)30/1, multiview-mode=(string)mono, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0.GstGhostPad:sink: caps = video/x-raw, format=(string)BGRA, width=(int)320, height=(int)240, framerate=(fraction)30/1, multiview-mode=(string)mono, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
ERROR: from element /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstKMSSink:autovideosink0-actual-sink-kms: GStreamer encountered a general resource error.
Additional debug info:
../sys/kms/gstkmssink.c(2032): gst_kms_sink_show_frame (): /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstKMSSink:autovideosink0-actual-sink-kms:
drmModeSetPlane failed: No space left on device (28)
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
ERROR: from element /GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0: Internal data stream error.
Additional debug info:
../libs/gst/base/gstbasesrc.c(3132): gst_base_src_loop (): /GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0:
streaming stopped, reason error (-5)
ERROR: pipeline doesn't want to preroll.
Freeing pipeline ...
#

BR Raimo

[Ronte.1]

Hi,

I found a sort of cure for this.

If I add some parameters to the sink then the launch will work all times.

gst-launch-1.0 videotestsrc ! kmssink driver-name=stm connector-id=32 force-modesetting=true.

In my setup the kmssink was the one the autovideosink is choosing.

BR Raimo

[PPAGE.13 · Accepted solution]

Hi Raimo,

if you are fine with your last gstreamer parameters, please close the ticket.

Have a good day.

Philippe.