USB Camera Not working for Imx8mm mini

[msharma]

Hello all,

I am trying to do the video streaming through PureThermal mini- FLIR Lepton USB web cam. The webcam is been detected but as soon as I put the below command I get "Internal Data stream error " : 

gst-launch-1.0 -e  v4l2src device=/dev/video3 ! "video/x-raw, format=UYVY, width=160, height=120,framerate=9/1" ! autovideosink

dmseg log :

Setting pipeline to PAUSED ...
error: XDG_RUNTIME_DIR not set in the environment.
error: XDG_RUNTIME_DIR not set in the environment.
Pipeline is live and does not need PREROLL ...
Got context from element 'autovideosink0': gst.gl.GLDisplay=context, gst.gl.GLDisplay=(GstGLDisplay)"\(GstGLDisplayVivFB\)\ gldisplayvivfb0";
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
[  205.459934] uvcvideo 3-1:1.1: Failed to submit URB 0 (-28).
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Failed to allocate required memory.
Additional debug info:
../git/sys/v4l2/gstv4l2src.c(659): gst_v4l2src_decide_allocation (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
Buffer pool activation failed
Execution ended after 0:00:00.040366375
Setting pipeline to NULL ...
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Internal data stream error.
Additional debug info:
../git/libs/gst/base/gstbasesrc.c(3127): gst_base_src_loop (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
streaming stopped, reason not-negotiated (-4)
Freeing pipeline ...

My kernel version is : 5.15

Waiting for your response,

Thanks & Regards,

Monica Sharma

[diwakar2599]

hi, i'm can't able to open dual usb camera at same time but it is working well for single usb camera .i have connected these usb camera through usb hub .

it shows error message that :

1. not enough bandwidth for new state

2. not enough bandwidth for altsetting 11.

3. gstreamer warning : embedded video playback halted  ; module v4l2src1  reported : Failed to allocate required memory.

4. gstreamer warning : unable to start pipeline 

and  i have pic for your reference guys .please help with it .

[joanxie]

try to use the command as below, I tested on my imx8mm successfully

gst-launch-1.0 -e v4l2src device=/dev/videoX ! image/jpeg,format=MJPEG,width=x,height=y ,framerate=30/1 ! jpegdec ! waylandsink

videoX, x, y depends on your video device and width height you need

[msharma]

Hello Joanxie,

I tried the above command, I am getting the following error : 

gst-launch-1.0 -e v4l2src device=/dev/video3 ! image/jpeg,format=MJPEG,width=160,height=120 ,framerate=9/1 ! jpegdec ! waylandsink                                              
Setting pipeline to PAUSED ...
error: XDG_RUNTIME_DIR not set in the environment.
Failed to set pipeline to PAUSED.
Setting pipeline to NULL ...
Freeing pipeline ...

Thanks & Regards,

Monica Sharma

[joanxie]

I just tested nxp bsp withouth modification, did your image use wayland as backend when buiding the image?

[joanxie]

what bsp do you use? the images you built or demo images? pls try the demo images to test firstly

"https://www.nxp.com/design/software/embedded-software/i-mx-software/embedded-linux-for-i-mx-applicat....."

[msharma]

Hello joanxie,

                  I am using meta-freescale, I also tried the demo image by copying “image-imx8mmevk.bin” and imx8mm-evk.dtb in my boot partition. But getting the same - "internal data stream error".

Please let me know if I am supposed to do any changes in the device tree.