Raspberry pi camera module 3 capture error

oturan

Hi guys,

I managed to take selfies by a microsft usb camera.

However I can’t get a picture from raspberry pi module 3. (after unpluging USB cam and plugging pi module v3)

I tested camera module v3 with libcamera commands and camera working on the OS side.

I started debugging on EXT-Selfie module and it gets below:

[02.06.2023 14:20.12.037] [LOG] [SELFIES] Shoot payload: {
options: {
playShutter: true,
autoValidate: true,
showResult: true,
TBkey: null,
useTBKeyOnly: false
}
}
[02.06.2023 14:20.12.046] [LOG] fswebcam -r 640x480 --jpeg 100 -d /dev/video1 --no-banner /home/ozgur/MagicMirror/modules/EXT-Selfies/photos/230602_142012.jpeg
[02.06.2023 14:20.12.163] [LOG] — Opening /dev/video1…
Trying source module v4l2…
/dev/video1 opened.
No input was specified, using the first.
Unable to find a compatible palette format.

I tried fswebcam commands separatly on the termial but it gets error by this device.

My device list is:

ozgur@magicmirror:~ $ v4l2-ctl --list-devices
bcm2835-codec-decode (platform:bcm2835-codec):
/dev/video10
/dev/video11
/dev/video12
/dev/video18
/dev/video31
/dev/media1

bcm2835-isp (platform:bcm2835-isp):
/dev/video13
/dev/video14
/dev/video15
/dev/video16
/dev/video20
/dev/video21
/dev/video22
/dev/video23
/dev/media2
/dev/media3

unicam (platform:fe801000.csi):
/dev/video0
/dev/video1
/dev/media4

rpivid (platform:rpivid):
/dev/video19
/dev/media0

** Unicam should be the “camera module v3”. I tried writing video0, video1, media4 with command fswebcam command, no luck.

Do you have any idea?

best regards

bugsounet

Hi,

Can you try this and give me the result ?

fswebcam -r 640x480 --jpeg 100 -D 1

It seem that your camera is not registred in the system

oturan

zgur@raspberrypi:~$ fswebcam -r 640x480 --jpeg 100 -D 1
— Opening /dev/video0…
Trying source module v4l2…
/dev/video0 opened.
No input was specified, using the first.
Delaying 1 seconds.
Error starting stream.
VIDIOC_STREAMON: Invalid argument
Unable to use mmap. Using read instead.
— Capturing frame…
VIDIOC_DQBUF: Invalid argument
Segmentation fault

bugsounet

do you enable Legacy Camera in raspi-config ? (Interface Options > Legacy Camera)

oturan

I enabled before and couldn’t make it work wit raspistill command. After search on google, I realized that the legacy mode is finishing and libcamera commands are working instead of raspistill commands.

If you want me to try it, I can re-enable legacy mode to see if fswebcam works…

bugsounet

I know but there are so many weird things from one kernel to another…

by the way, is it a x64 or 32bit kernel?

uname -a

send the result, thx

oturan

ozgur@raspberrypi:~ $ uname -a
Linux raspberrypi 6.1.21-v8+ #1642 SMP PREEMPT Mon Apr 3 17:24:16 BST 2023 aarch64 GNU/Linux

bugsounet

I suspect the x64 kernel is the problem,
can try 32bits kernel for testing ?
see there my /boot/config.txt modification to force 32bits Kernel

oturan

Sorry for late reply, I reinstalled the magicmirror from scracth and applied the config: (added “arm_64bit=0” to /boot/config.txt

now: uname -a returns:
Linux magicmirror 6.1.21-v7l+ #1642 SMP Mon Apr 3 17:22:30 BST 2023 armv7l GNU/Linux

However failed again:

From startup logs:

[16.07.2023 20:37.29.224] [LOG] [SELFIES] Searching camera devices…
[16.07.2023 20:37.29.228] [LOG] [SELFIES] Detected devices: [
‘/dev/video0’, ‘/dev/video1’,
‘/dev/video10’, ‘/dev/video11’,
‘/dev/video12’, ‘/dev/video13’,
‘/dev/video14’, ‘/dev/video15’,
‘/dev/video16’, ‘/dev/video18’,
‘/dev/video19’, ‘/dev/video20’,
‘/dev/video21’, ‘/dev/video22’,
‘/dev/video23’, ‘/dev/video31’
]
[16.07.2023 20:37.29.230] [LOG] [SELFIES] Default camera ‘/dev/video0’ will be used.

When shooting for selifie:

16.07.2023 22:18.10.604] [LOG] [SELFIES] Shoot payload: {
options: {
playShutter: true,
autoValidate: false,
showResult: true,
TBkey: null,
useTBKeyOnly: false
}
}
[16.07.2023 22:18.10.622] [LOG] fswebcam -r 1280x720 --jpeg 100 --no-banner /home/ozgur/MagicMirror/modules/EXT-Selfies/photos/230716_221810.jpeg
[16.07.2023 22:18.10.839] [ERROR] [SELFIES] Capture Error! Error: Command failed: fswebcam -r 1280x720 --jpeg 100 --no-banner /home/ozgur/MagicMirror/modules/EXT-Selfies/photos/230716_221810.jpeg
— Opening /dev/video0…
Trying source module v4l2…
/dev/video0 opened.
No input was specified, using the first.
Error starting stream.
VIDIOC_STREAMON: Invalid argument
Unable to use mmap. Using read instead.
— Capturing frame…
VIDIOC_DQBUF: Invalid argument
Segmentation fault (core dumped)

at ChildProcess.exithandler (node:child_process:430:12)
at ChildProcess.emit (node:events:513:28)
at maybeClose (node:internal/child_process:1091:16)
at Socket.<anonymous> (node:internal/child_process:449:11)
at Socket.emit (node:events:513:28)
at Pipe.<anonymous> (node:net:322:12) {

code: 139,
killed: false,
signal: null,
cmd: ‘fswebcam -r 1280x720 --jpeg 100 --no-banner /home/ozgur/MagicMirror/modules/EXT-Selfies/photos/230716_221810.jpeg’
}

bugsounet

Hi, no other idea for this
I haven’t any pi camera module 3 for testing

oturan

Thanx anyway… Have a nice day…

Unsolved Raspberry pi camera module 3 capture error