i.MX ProcessorsのトピックRe: error:/dev/video0 format not supported

error:/dev/video0 format not supported

petersonhou — Thu, 27 Feb 2020 02:54:02 GMT

executing 'capturing' in SV3D-project on imx8qxp-mek,the UART output is "/dev/video0 format not supported"

but input cmd like"gst-launch-1.0 v4l2src device=/dev/video0 ! 'video/x-raw,width=1920,height=1080,framerate=15/1' ! queue ! waylandsink" the LCD can output the normal graphic from sensor.

kernel image:L4.14.98.2.0.0

SV3D project : surround-view-3D_1.1_beta

The image and binaries compiled with aarch64-poky-linux toolchain

i trace the code of SV3D project,this err located at v4l2Camera.captureSetup()->ioctl(fd,VIDIOC_S_FMT,&fmt);

but cannot trace the callback in the level of kernel.

looking forward to your answer

Re: error:/dev/video0 format not supported

igorpadykov — Thu, 27 Feb 2020 23:39:49 GMT

Hi peterson

for supported formats one can refer to attached Release Notes,

pay attention to Table 15. i.MX GStreamer 1.0 plugins.

test with Demo Images from

i.MX Software and Development Tools | NXP

Best regards
igor
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Re: error:/dev/video0 format not supported

petersonhou — Fri, 28 Feb 2020 02:56:56 GMT

thanks for your answer！！！

Maybe my description is little bit misty...

i use the command"gst-launch-1.0..."means the /dev/video0 is available.

The real err is when i executing binary file "Tools/CamCapture/capturing" under the surround-view-3D_1.1_beta project which compiled by aarch64-poky-linux toolchain.The UART output is "/dev/video0 format not supported".

Hope the question is clear,any problems notice me.

Re: error:/dev/video0 format not supported

igorpadykov — Fri, 28 Feb 2020 05:13:37 GMT

suggest to check below documentation what is currently supported

for that processor

i.MX Software and Development Tools | NXP

Also for i.MX8QXP most updated kernel version is L4.14.98_2.3.0

Linux 4.14.98_2.3.0 Documentation

Best regards
igor

Re: error:/dev/video0 format not supported

petersonhou — Tue, 03 Mar 2020 04:25:36 GMT

Thank you very much!

I already pass the format problem,after that the Surround-view project comes a new err:

ES30: some draw get error and skipped during validation

From a similar posting,like:No graphical output after updating GPU vivante driver ,I learn that the err mean i should update my GPU driver,is that right?

looking forward your answer!

Re: error:/dev/video0 format not supported

igorpadykov — Tue, 03 Mar 2020 06:11:04 GMT

what bsp are you using, try nxp bsps from source.codeaurora.org/external/imx/linux-imx

repository : linux-imx - i.MX Linux kernel
All gpu drivers are already included to them.

Best regards
igor

Re: error:/dev/video0 format not supported

petersonhou — Thu, 05 Mar 2020 04:38:01 GMT

kernel version:

Linux imx8qxpmek 4.14.98-06466-g5910884-dirty #99 SMP PREEMPT Thu Feb 27 23:43:30 PST 2020 aarch64 aarch64 aarch64 GNU/Linux

Galcore version 6.2.4.190076

The UART still output

ES30: some draw get error and skipped during validation

and the LCD display like blew:

and flicker

Looking forward your answer!Thank you!

Re: error:/dev/video0 format not supported

igorpadykov — Thu, 05 Mar 2020 07:03:54 GMT

please try to use latest rev.C0 i.MX8QXP silicon with "AC"

suffix and Linux 4.14.98_2.3.0 Documentation

Re: error:/dev/video0 format not supported

petersonhou — Thu, 05 Mar 2020 07:23:20 GMT

when could i get the rev.C0 i.MX8QXP silicon ?

Re: error:/dev/video0 format not supported

igorpadykov — Thu, 05 Mar 2020 10:28:58 GMT

please ask it in local nxp marketing office.

Worldwide Locations | NXP

Re: error:/dev/video0 format not supported

pakselami — Thu, 19 Nov 2020 12:46:26 GMT

I am having the same issue. Could you please explain how did you solve this problem? @petersonhou

Re: error:/dev/video0 format not supported

diwakar2599 — Tue, 02 May 2023 08:58:17 GMT

how did you resolve this error :/dev/video0

could you please tell me .i'm stucking with that