Comments (14)
hipersayanX
commented on September 21, 2024
1
Right now, no. I'm quite busy with the Android port of Webcamoid, I'll take a look of all bugs (including this) once I finish with that. Mean while you or anyone else can start hacking with the code or the system, solutions and PRs are very welcome 😃
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hipersayanX
commented on September 21, 2024
1
This issue was fixed in 1.0.2.
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bigtobster
commented on September 21, 2024
1
That worked perfectly. Problem solved.
For anyone else with this issue, I ran a Kernel update, restarted, rebuilt akvcam from scratch, installed with DKMS, copied the config.ini exactly as @hipersayanX wrote and 100% fixed.
Note that v4l2-compliance gave me some failures on video1 but it didn't seem to affect the overall outcome.
Many thanks @hipersayanX - you the damn boss
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hipersayanX
commented on September 21, 2024
What is the content of /etc/akvcam/config.ini?
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bigtobster
commented on September 21, 2024
$ cat /etc/akvcam/config.ini
[Cameras]
cameras/size = 2
cameras/1/type = output
cameras/1/mode = mmap, userptr, rw
cameras/1/description = Virtual Camera (output device)
cameras/1/formats = 2
cameras/2/type = capture
cameras/2/mode = mmap, rw
cameras/2/description = Canon XJ4123R Webcam
; cameras/2/description = Virtual Camera (capture device)
cameras/2/formats = 1, 2
[Formats]
formats/size = 2
formats/1/format = RGB24
formats/1/width = 640
formats/1/height = 480
formats/1/fps = 30
formats/2/format = RGB24, YUY2
formats/2/width = 640
formats/2/height = 480
formats/2/fps = 20/1, 15/2
[Connections]
connections/size = 1
connections/1/connection = 1:2
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hipersayanX
commented on September 21, 2024
The configuration seems ok, and the width is multiple of 32, the only thing that is wrong is that FFmpeg only support rw method, so it must be cameras/2/mode = rw.
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bigtobster
commented on September 21, 2024
Thanks.
New settings file:
$ sudo cat /etc/akvcam/config.ini
[Cameras]
cameras/size = 2
cameras/1/type = output
cameras/1/mode = mmap, userptr, rw
cameras/1/description = Virtual Camera (output device)
cameras/1/formats = 2
cameras/2/type = capture
cameras/2/mode = rw
cameras/2/description = Canon XJ4123R Webcam
; cameras/2/description = Virtual Camera (capture device)
cameras/2/formats = 1, 2
[Formats]
formats/size = 2
formats/1/format = RGB24
formats/1/width = 640
formats/1/height = 480
formats/1/fps = 30
formats/2/format = RGB24, YUY2
formats/2/width = 640
formats/2/height = 480
formats/2/fps = 20/1, 15/2
[Connections]
connections/size = 1
connections/1/connection = 1:2
Issue now is Permission Denied (or similar when used through ANY browser).
To reload the config, I ran the below:
sudo rmmod /var/lib/dkms/akvcam/5.1.8-300/5.1.8-300.fc30.x86_64/x86_64/module/akvcam.ko.xz
sudo modprobe videodev
sudo insmod /var/lib/dkms/akvcam/5.1.8-300/5.1.8-300.fc30.x86_64/x86_64/module/akvcam.ko.xz
sudo insmod /var/lib/dkms/akvcam/5.1.8-300/5.1.8-300.fc30.x86_64/x86_64/module/akvcam.ko.xz
Devices look like this:
$ ll /dev/video*
crw-rw-rw-+ 1 root video 81, 0 Jun 16 15:14 /dev/video0
crw-rw-rw-+ 1 root video 81, 1 Jun 16 15:14 /dev/video1
Nothing useful in /var/log/messages
Jun 16 15:09:31 sephiroth kernel: akvcam: loading out-of-tree module taints kernel.
Jun 16 15:09:31 sephiroth kernel: akvcam: module verification failed: signature and/or required key missing - tainting kernel
Jun 16 15:09:31 sephiroth systemd-modules-load[992]: Inserted module 'akvcam'
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hipersayanX
commented on September 21, 2024
Jun 16 15:09:31 sephiroth kernel: akvcam: loading out-of-tree module taints kernel. Jun 16 15:09:31 sephiroth kernel: akvcam: module verification failed: signature and/or required key missing - tainting kernel Jun 16 15:09:31 sephiroth systemd-modules-load[992]: Inserted module 'akvcam'
Could that error be related to this?
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bigtobster
commented on September 21, 2024
So I executed
sudo depmod -a
Rebooted. The result was this in /var/log/messages
Jun 18 11:59:33 sephiroth systemd-modules-load[324]: Failed to find module 'akvcam'
Jun 18 11:59:42 sephiroth systemd-modules-load[951]: Failed to find module 'akvcam'
Jun 18 11:59:42 sephiroth systemd-modules-load[1102]: Failed to find module 'akvcam'
Jun 18 11:59:42 sephiroth systemd-modules-load[1112]: Failed to find module 'akvcam'
Jun 18 11:59:44 sephiroth sh[1279]: make -C /usr/lib/modules/5.1.9-300.fc30.x86_64/build M=/var/lib/dkms/akvcam/5.1.8-300/build clean
Jun 18 11:59:46 sephiroth sh[1279]: { make -j8 KERNELRELEASE=5.1.9-300.fc30.x86_64 KERNEL_DIR=/lib/modules/5.1.9-300.fc30.x86_64/build all; } >> /var/lib/dkms/akvcam/5.1.8-300/build/make.log 2>&1
Jun 18 11:59:51 sephiroth sh[1279]: make -C /usr/lib/modules/5.1.9-300.fc30.x86_64/build M=/var/lib/dkms/akvcam/5.1.8-300/build clean
Jun 18 11:59:51 sephiroth sh[1279]: CLEAN /var/lib/dkms/akvcam/5.1.8-300/build/.tmp_versions
Jun 18 11:59:51 sephiroth sh[1279]: CLEAN /var/lib/dkms/akvcam/5.1.8-300/build/Module.symvers
Jun 18 11:59:51 sephiroth sh[1279]: akvcam.ko.xz:
Jun 18 12:00:03 sephiroth kernel: akvcam: loading out-of-tree module taints kernel.
Jun 18 12:00:03 sephiroth kernel: akvcam: module verification failed: signature and/or required key missing - tainting kernel
Jun 18 12:00:03 sephiroth systemd-modules-load[4494]: Inserted module 'akvcam'
So something definitely happened with depmod but whatever it is didn't solve the problem.
Also, the user now has the video group.
$ groups
toby wheel video
The devices are now accessed only be group and root.
$ ll /dev/video*
crw-rw----+ 1 root video 81, 0 Jun 18 12:00 /dev/video0
crw-rw----+ 1 root video 81, 1 Jun 18 12:00 /dev/video1
I've also confirmed that VLC continues to read video1 correctly when casting. This remains a Browser-Only issue both before and after depmod. VLC running as same user.
IMO those warnings in /var/log/messages are just warnings that the module is untested/certificated on the main Kernel. It otherwise seems to be loading correctly.
Finally, I did also check that there is no IPC lock on the device. It appears not:
$ fuser /dev/video1
Note that even with Chrome on a site which requests the video1 camera, fuser still returns 0 processes.
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bigtobster
commented on September 21, 2024
Sorry to bump... any thoughts on this? Happy to help test :) Just need something to try :)
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bigtobster
commented on September 21, 2024
Understood! Many thanks!! Good luck with the Android port and I'll see what I can do with this in the meantime.
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bigtobster
commented on September 21, 2024
I'm experiencing the same issue on Master branch. It's essentially Permission Denied when using akvcam on browsers but it works 100% fine on VLC etc. Any idea why this would happen with all browsers and not local apps? My feeling is that AKVCam is fine but my setup is stupid. Maybe a firewall issue? If any hints come to mind, please let me know. Otherwise I'll look into permissions stuff and post back here if I get it working.
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hipersayanX
commented on September 21, 2024
Still the same problem? I've tested in Firefox, Chrome and Opera in Arch and it's working fine. Did you have checked you /etc/akvcam/config.ini file?
Maybe a firewall issue? If any hints come to mind, please let me know. Otherwise I'll look into permissions stuff and post back here if I get it working.
No, the problem is not related to any firewall or permission settings for sure.
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hipersayanX
commented on September 21, 2024
Try with this config.ini:
[Cameras]
cameras\1\description=Virtual Camera (out)
cameras\1\formats=1, 2, 3, 4, 5, 6
cameras\1\mode=rw
cameras\1\type=output
cameras\2\description=Virtual Camera
cameras\2\formats=7, 8, 9, 10, 11, 12
cameras\2\mode=mmap, userptr
cameras\2\type=capture
cameras\size=2
[Connections]
connections\1\connection=1:2
connections\size=1
[Formats]
formats\size=12
formats\1\format=RGB24
formats\1\width=640
formats\1\height=480
formats\1\fps=30/1
formats\2\format=RGB24
formats\2\height=120
formats\2\width=160
formats\2\fps=30/1
formats\3\format=RGB24
formats\3\height=240
formats\3\width=320
formats\3\fps=30/1
formats\4\format=RGB24
formats\4\height=600
formats\4\width=800
formats\4\fps=30/1
formats\5\format=RGB24
formats\5\height=720
formats\5\width=1280
formats\5\fps=30/1
formats\6\format=RGB24
formats\6\height=1080
formats\6\width=1920
formats\6\fps=30/1
formats\7\format=YUY2, UYVY
formats\7\width=640
formats\7\height=480
formats\7\fps=30/1
formats\8\format=YUY2, UYVY
formats\8\width=160
formats\8\height=120
formats\8\fps=30/1
formats\9\format=YUY2, UYVY
formats\9\width=320
formats\9\height=240
formats\9\fps=30/1
formats\10\format=YUY2, UYVY
formats\10\width=800
formats\10\height=600
formats\10\fps=30/1
formats\11\format=YUY2, UYVY
formats\11\width=1280
formats\11\height=720
formats\11\fps=30/1
formats\12\format=YUY2, UYVY
formats\12\width=1920
formats\12\height=1080
formats\12\fps=30/1
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Related Issues (20)
- akvcam module compilation HOT 16
- akvcam-1.2.2 can't be installed - can' find linux-headers HOT 4
- How to use mmap mode? HOT 1
- akvcam - gone after reboot. HOT 29
- Wrong color on little endian machine HOT 3
- Multiple consumers for single video capture device HOT 4
- No driver (Linux Mint 21.2 Cinnamon) HOT 1
- [incompatibility] akvcam virtual cam generating errors on web platforms like omegle,zoom,jitsi etc HOT 2
- V4L2_BUF_FLAG_LAST is set and epipe is returned HOT 9
- setup.sh failed on ubuntu HOT 3
- Make use persistent device path /dev/v4l/by-id/.*
- Unknown symbol in module HOT 1
- error building on kernel 6.7 HOT 1
- Unknown symbol vb2_vmalloc_memops HOT 1
- Fragile commit: Define V4L2_DEVICE_NAME_SIZE if not defined. HOT 1
- Clarification of output device HOT 3
- Can't install on Ubuntu HOT 5
- Streaming ioctls errors HOT 26
- Android 13 HOT 8
- how to change the output pictures HOT 3
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