UNSOLVED Error occurs when more than three CS-USB-IMX307 are connected.
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I want to connect four CS-USB-IMX307 units to Jetson NX.
However, when I open the third unit, I get an error message.
Have you ever connected four CS-USB-IMX307 units to Jetson NX?
If you know how to connect them, please let me know.
$ gst-launch-1.0 v4l2src device=/dev/video0 ! 'video/x-raw,format=YUY2,width=640,height=360,framerate=30/1' ! nvvidconv ! 'video/x-raw(memory:NVMM),format=NV12' ! nvvidconv ! nveglglessink & \ > gst-launch-1.0 v4l2src device=/dev/video1 ! 'video/x-raw,format=YUY2,width=640,height=360,framerate=30/1' ! nvvidconv ! 'video/x-raw(memory:NVMM),format=NV12' ! nvvidconv ! nveglglessink & \ > gst-launch-1.0 v4l2src device=/dev/video2 ! 'video/x-raw,format=YUY2,width=640,height=360,framerate=30/1' ! nvvidconv ! 'video/x-raw(memory:NVMM),format=NV12' ! nvvidconv ! nveglglessink & [1] 10085 [2] 10086 [3] 10087 $ Setting pipeline to PAUSED ... Using winsys: x11 Pipeline is live and does not need PREROLL ... Got context from element 'eglglessink0': gst.egl.EGLDisplay=context, display=(GstEGLDisplay)NULL; Setting pipeline to PLAYING ... New clock: GstSystemClock Setting pipeline to PAUSED ... Using winsys: x11 Pipeline is live and does not need PREROLL ... Setting pipeline to PAUSED ... Using winsys: x11 Got context from element 'eglglessink0': gst.egl.EGLDisplay=context, display=(GstEGLDisplay)NULL; Setting pipeline to PLAYING ... New clock: GstSystemClock Pipeline is live and does not need PREROLL ... Got context from element 'eglglessink0': gst.egl.EGLDisplay=context, display=(GstEGLDisplay)NULL; Setting pipeline to PLAYING ... New clock: GstSystemClock ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Failed to allocate required memory. Additional debug info: gstv4l2src.c(658): gst_v4l2src_decide_allocation (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Buffer pool activation failed Execution ended after 0:00:00.369937048 Setting pipeline to PAUSED ... Setting pipeline to READY ... Setting pipeline to NULL ... Freeing pipeline ... -
@octa_yk
Use nvoverlaysink as sink will be fine, the specific reasons I have not yet studied in depth, you can try first.gst-launch-1.0 v4l2src device=/dev/video0 ! 'video/x-raw,format=YUY2,width=640,height=360,framerate=30/1' ! nvvidconv ! 'video/x-raw(memory:NVMM),format=NV12' ! nvvidconv ! nvoverlaysink -
I used "nvoverlaysink" and the result was the same.
Are you able to connect and image 4 USB cameras in your environment?
Please let us know the details of your environment, including the OS version you are using.
$ gst-launch-1.0 v4l2src device=/dev/video0 ! 'video/x-raw,format=YUY2,width=640,height=360,framerate=30/1' ! nvvidconv ! 'video/x-raw(memory:NVMM),format=NV12' ! nvvidconv ! nvoverlaysink & \ > gst-launch-1.0 v4l2src device=/dev/video1 ! 'video/x-raw,format=YUY2,width=640,height=360,framerate=30/1' ! nvvidconv ! 'video/x-raw(memory:NVMM),format=NV12' ! nvvidconv ! nvoverlaysink & \ > gst-launch-1.0 v4l2src device=/dev/video2 ! 'video/x-raw,format=YUY2,width=640,height=360,framerate=30/1' ! nvvidconv ! 'video/x-raw(memory:NVMM),format=NV12' ! nvvidconv ! nvoverlaysink & [1] 9800 [2] 9801 [3] 9802 Setting pipeline to PAUSED ... Setting pipeline to PAUSED ... Setting pipeline to PAUSED ... Pipeline is live and does not need PREROLL ... Pipeline is live and does not need PREROLL ... Pipeline is live and does not need PREROLL ... Setting pipeline to PLAYING ... New clock: GstSystemClock Setting pipeline to PLAYING ... Setting pipeline to PLAYING ... New clock: GstSystemClock New clock: GstSystemClock ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Failed to allocate required memory. Additional debug info: gstv4l2src.c(658): gst_v4l2src_decide_allocation (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Buffer pool activation failed Execution ended after 0:00:00.467221630 Setting pipeline to PAUSED ... Setting pipeline to READY ... Setting pipeline to NULL ... Freeing pipeline ... -
@octa_yk
You can try to display 1 usb video. This will definitely work.
The problem is that nvoverlaysink will try to use the whole screen, so your command will error out.
I don't have much experience with this either. Suggestions are as follows.- You can refer to:
http://wiki.veye.cc/index.php/VEYE_CS_Camera_for_Jetson_TX2#Gstreamer_Usage
The chapter of Preview 2 cameras 1080p HD, this command uses nvcompsitor to achieve the simultaneous preview of two cameras. - Or, the form of the command like you are now, specify a display area for each camera's nvoverlaysink.
Also, you can go to nvidia's forum to ask this question. They should have more experience.
- You can refer to:
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I don't have much experience with this either.
In other words, I have never connected this camera to NX to display four cameras. There is no guarantee that I can. Is that correct?
Also, you can go to nvidia's forum to ask this question. They should have more experience.
There has been some discussion about this on the nvidia forums, but nvidia has stated that it is possible to connect 4 cameras.
If you can't connect them, then the problem is with the camera itself.
In other words, the camera is reserving more bandwidth than it needs, and if the total amount exceeds the limit, an error will occur. -
@octa_yk I don't think it has anything to do with bandwidth, it's a problem with the gstreamer command. It has nothing to do with the camera, it's the display.
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You do not need to use gstreamer.
So how can I connect and display four cameras?
Please direct me to the answer from among all the possibilities.Or are you stating that you can for a phenomenon that has never been realized?
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@octa_yk
Hi,The following command can connect two cameras at the same time.gst-launch-1.0 -v \ nvcompositor name=mix \ sink_0::xpos=0 sink_0::ypos=0 sink_0::width=640 sink_0::height=360 \ sink_1::xpos=640 sink_1::ypos=0 sink_1::width=640 sink_1::height=360 \ ! 'video/x-raw(memory:NVMM),format=RGBA,width=1920,height=1080,framerate=30/1' ! nvvidconv ! nvoverlaysink \ v4l2src device=/dev/video2 ! 'video/x-raw,format=YUY2,width=640,height=360,framerate=30/1' ! nvvidconv ! 'video/x-raw(memory:NVMM),format=RGBA,width=640,height=360,pixel-aspect-ratio=1/1' ! queue ! mix.sink_0 \ v4l2src device=/dev/video3 ! 'video/x-raw,format=YUY2,width=640,height=360,framerate=30/1' ! nvvidconv ! 'video/x-raw(memory:NVMM),format=RGBA,width=640,height=360,pixel-aspect-ratio=1/1' ! queue ! mix.sink_1 \When I try to connect 4 cameras at the same time, an error is reported.
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Failed to allocate required memory.So I google it,and got this:
https://forums.developer.nvidia.com/t/use-gstreamer-to-open-two-usb-cameras-failed-to-allocate-required-memory/122843I suggest you try the patch mentioned there.
The device I used : Jetson NX Jetpack4.6.1.
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If you applied a batch using "Jetson NX Jetpack 4.6.1", were you able to successfully connect 4 cameras?
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@octa_yk No, this is just a suggestion for you.
