Comments (8)
taylorchu
commented on July 20, 2024
v4l2-compliance SHA : not available
Driver Info:
Driver name : akvcam
Card type : Virtual Camera 1 (output device
Bus info : platform:akvcam-1
Driver version: 5.4.101
Capabilities : 0x85200002
Video Output
Read/Write
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x05200002
Video Output
Read/Write
Streaming
Extended Pix Format
Compliance test for device /dev/video1 (not using libv4l2):
Required ioctls:
test VIDIOC_QUERYCAP: OK
Allow for multiple opens:
test second video open: OK
test VIDIOC_QUERYCAP: OK
test VIDIOC_G/S_PRIORITY: OK
test for unlimited opens: OK
Debug ioctls:
test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
test VIDIOC_LOG_STATUS: OK
Input ioctls:
test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
test VIDIOC_ENUMAUDIO: OK (Not Supported)
test VIDIOC_G/S/ENUMINPUT: OK (Not Supported)
test VIDIOC_G/S_AUDIO: OK (Not Supported)
Inputs: 0 Audio Inputs: 0 Tuners: 0
Output ioctls:
test VIDIOC_G/S_MODULATOR: OK (Not Supported)
test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
test VIDIOC_ENUMAUDOUT: OK (Not Supported)
test VIDIOC_G/S/ENUMOUTPUT: OK
test VIDIOC_G/S_AUDOUT: OK (Not Supported)
Outputs: 1 Audio Outputs: 0 Modulators: 0
Input/Output configuration ioctls:
test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
test VIDIOC_G/S_EDID: OK (Not Supported)
Test output 0:
Control ioctls:
test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK
test VIDIOC_QUERYCTRL: OK
test VIDIOC_G/S_CTRL: OK
test VIDIOC_G/S/TRY_EXT_CTRLS: OK
test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK
test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
Standard Controls: 3 Private Controls: 3
Format ioctls:
test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK
test VIDIOC_G/S_PARM: OK
test VIDIOC_G_FBUF: OK (Not Supported)
test VIDIOC_G_FMT: OK
test VIDIOC_TRY_FMT: OK
test VIDIOC_S_FMT: OK
test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
test Cropping: OK (Not Supported)
test Composing: OK (Not Supported)
test Scaling: OK (Not Supported)
Codec ioctls:
test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
test VIDIOC_G_ENC_INDEX: OK (Not Supported)
test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)
Buffer ioctls:
fail: v4l2-test-buffers.cpp(533): check_0(reqbufs.reserved, sizeof(reqbufs.reserved))
test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL
test VIDIOC_EXPBUF: OK
Test output 0:
Total: 43, Succeeded: 42, Failed: 1, Warnings: 0
from akvcam.
hipersayanX
commented on July 20, 2024
I will check, the VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF was managed internally by the v4l2 kernel API, not sure if it's a bug in my side, or you hitted some limit in the API.
from akvcam.
taylorchu
commented on July 20, 2024
Thanks v4l2loopback works on the same machine. So I think there is something wrong in the code
from akvcam.
taylorchu
commented on July 20, 2024
v4loopback compliance test on the same node:
v4l2-compliance -d /dev/video0
v4l2-compliance SHA : not available
Driver Info:
Driver name : v4l2 loopback
Card type : Dummy video device (0x0000)
Bus info : platform:v4l2loopback-000
Driver version: 5.4.101
Capabilities : 0x85208003
Video Capture
Video Output
Video Memory-to-Memory
Read/Write
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x05208003
Video Capture
Video Output
Video Memory-to-Memory
Read/Write
Streaming
Extended Pix Format
Compliance test for device /dev/video0 (not using libv4l2):
Required ioctls:
fail: v4l2-compliance.cpp(584): (dcaps & input_caps) && (dcaps & output_caps)
test VIDIOC_QUERYCAP: FAIL
Allow for multiple opens:
test second video open: OK
fail: v4l2-compliance.cpp(584): (dcaps & input_caps) && (dcaps & output_caps)
test VIDIOC_QUERYCAP: FAIL
test VIDIOC_G/S_PRIORITY: OK
fail: v4l2-compliance.cpp(632): !ok
test for unlimited opens: FAIL
Debug ioctls:
test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
test VIDIOC_LOG_STATUS: OK (Not Supported)
Input ioctls:
test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
test VIDIOC_ENUMAUDIO: OK (Not Supported)
test VIDIOC_G/S/ENUMINPUT: OK
test VIDIOC_G/S_AUDIO: OK (Not Supported)
Inputs: 1 Audio Inputs: 0 Tuners: 0
Output ioctls:
test VIDIOC_G/S_MODULATOR: OK (Not Supported)
test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
test VIDIOC_ENUMAUDOUT: OK (Not Supported)
test VIDIOC_G/S/ENUMOUTPUT: OK
test VIDIOC_G/S_AUDOUT: OK (Not Supported)
Outputs: 1 Audio Outputs: 0 Modulators: 0
Input/Output configuration ioctls:
test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
test VIDIOC_G/S_EDID: OK (Not Supported)
Test input 0:
Control ioctls:
test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK
test VIDIOC_QUERYCTRL: OK
test VIDIOC_G/S_CTRL: OK
test VIDIOC_G/S/TRY_EXT_CTRLS: OK
test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK
test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
Standard Controls: 1 Private Controls: 4
Format ioctls:
fail: v4l2-test-formats.cpp(303): Video Capture cap set, but no Video Capture formats defined
test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: FAIL
fail: v4l2-test-formats.cpp(1213): got error 22 when setting parms for buftype 1
test VIDIOC_G/S_PARM: FAIL
test VIDIOC_G_FBUF: OK (Not Supported)
fail: v4l2-test-formats.cpp(590): Video Capture cap set, but no Video Capture formats defined
test VIDIOC_G_FMT: FAIL
test VIDIOC_TRY_FMT: OK (Not Supported)
test VIDIOC_S_FMT: OK (Not Supported)
test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
test Cropping: OK (Not Supported)
test Composing: OK (Not Supported)
fail: v4l2-test-formats.cpp(1645): doioctl(node, VIDIOC_G_FMT, &fmt)
test Scaling: FAIL
Codec ioctls:
test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
test VIDIOC_G_ENC_INDEX: OK (Not Supported)
test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)
Buffer ioctls:
test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
test VIDIOC_EXPBUF: OK (Not Supported)
Test input 0:
Total: 43, Succeeded: 36, Failed: 7, Warnings: 0
from akvcam.
hipersayanX
commented on July 20, 2024
@taylorchu which version of v4l-utils are you using?
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taylorchu
commented on July 20, 2024
1.14.2-1
Package: v4l-utils
Version: 1.14.2-1
Priority: optional
Section: universe/utils
Origin: Ubuntu
Maintainer: Ubuntu Developers <[email protected]>
Original-Maintainer: Gregor Jasny <[email protected]>
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 1461 kB
Depends: libv4l-0 (= 1.14.2-1), libv4l2rds0 (= 1.14.2-1), libc6 (>= 2.15), libgcc1 (>= 1:3.0), libstdc++6 (>= 5.2), libudev1 (>= 183)
Breaks: ivtv-utils (<< 1.4.1-2), media-ctl
Replaces: ivtv-utils (<< 1.4.1-2), media-ctl
Homepage: https://linuxtv.org/downloads/v4l-utils/
Download-Size: 407 kB
APT-Manual-Installed: yes
APT-Sources: http://archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
Description: Collection of command line video4linux utilities
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hipersayanX
commented on July 20, 2024
Yes, the fail is pointing here, and VIDIOC_REQBUFS is managed by vb2_ioctl_reqbufs here, I haven't any kind of access to the v4l2_requestbuffers structure, the bug is in the kernel.
from akvcam.
hipersayanX
commented on July 20, 2024
I been testing your config.ini as-is and it was working fine for me, all tests passed. One thing I forgot to ask you was the dmesg log, because now I think the test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL could have been caused by a segfault in the module.
The module should be more stable now with the latest commits, I'll make a new release in a few days.
from akvcam.
Related Issues (20)
- The example for `/etc/akvcam/config.ini` may be wrong in wiki HOT 1
- Staticy output, no idea what I did in config HOT 9
- akvcam-1.2.2: build warnings HOT 2
- webcamoid 9.0.0 cant add virtual camera using pkexec
- 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
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