Comments (11)
Meister1593
commented on July 28, 2024
Sorry for empty issue at first, pressed enter too fast
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l1npengtul
commented on July 28, 2024
I suspect this may be a your computer issue, Ill look into this
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Meister1593
commented on July 28, 2024
I suspect this may be a your computer issue, Ill look into this
I could open v4l camera through other library directly (/dev/video1) and with ffmpeg CLI, so I doubt that its issue with my system configuration
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l1npengtul
commented on July 28, 2024
Can you attach the output of v4l2-ctl --all?
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Meister1593
commented on July 28, 2024
v4l2-ctl --all
huh, weird... i can see there my OBS camera loopback, but not my camera
but in v4l2-ctl --list-devices i can see my camera just fine
[plyshka@fedora-36 plyshka]$ v4l2-ctl --all
Driver Info:
Driver name : v4l2 loopback
Card type : OBS Virtual Camera
Bus info : platform:v4l2loopback-000
Driver version : 5.18.8
Capabilities : 0x85208002
Video Output
Video Memory-to-Memory
Read/Write
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x05208002
Video Output
Video Memory-to-Memory
Read/Write
Streaming
Extended Pix Format
Priority: 0
Video output: 0 (loopback in)
Format Video Output:
Width/Height : 0/0
Pixel Format : 'BGR4' (32-bit BGRA/X 8-8-8-8)
Field : None
Bytes per Line : 0
Size Image : 0
Colorspace : sRGB
Transfer Function : Default (maps to sRGB)
YCbCr/HSV Encoding: Default (maps to ITU-R 601)
Quantization : Default (maps to Full Range)
Flags :
Streaming Parameters Video Capture:
Frames per second: 30.000 (30/1)
Read buffers : 2
Streaming Parameters Video Output:
Frames per second: 30.000 (30/1)
Write buffers : 2
User Controls
keep_format 0x0098f900 (bool) : default=0 value=0
sustain_framerate 0x0098f901 (bool) : default=0 value=0
timeout 0x0098f902 (int) : min=0 max=100000 step=1 default=0 value=0
timeout_image_io 0x0098f903 (bool) : default=0 value=0
plyshka@fedora-36 plyshka]$ v4l2-ctl --list-devices
OBS Virtual Camera (platform:v4l2loopback-000):
/dev/video0
USB Camera-B4.09.24.1 (usb-0000:01:00.0-9):
/dev/video1
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Meister1593
commented on July 28, 2024
This works if i specify device directly
[plyshka@fedora-36 plyshka]$ v4l2-ctl -d /dev/video1 --all
Driver Info:
Driver name : ov534
Card type : USB Camera-B4.09.24.1
Bus info : usb-0000:01:00.0-9
Driver version : 5.18.8
Capabilities : 0x85200001
Video Capture
Read/Write
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x05200001
Video Capture
Read/Write
Streaming
Extended Pix Format
Priority: 2
Video input : 0 (ov534: ok)
Format Video Capture:
Width/Height : 640/480
Pixel Format : 'GRBG' (8-bit Bayer GRGR/BGBG)
Field : None
Bytes per Line : 640
Size Image : 307200
Colorspace : sRGB
Transfer Function : Default (maps to sRGB)
YCbCr/HSV Encoding: Default (maps to ITU-R 601)
Quantization : Default (maps to Full Range)
Flags :
Streaming Parameters Video Capture:
Capabilities : timeperframe
Frames per second: 30.000 (30/1)
Read buffers : 2
User Controls
brightness 0x00980900 (int) : min=0 max=255 step=1 default=0 value=0 flags=slider
contrast 0x00980901 (int) : min=0 max=255 step=1 default=32 value=32 flags=slider
saturation 0x00980902 (int) : min=0 max=255 step=1 default=64 value=64 flags=slider
hue 0x00980903 (int) : min=-90 max=90 step=1 default=0 value=0 flags=slider
white_balance_automatic 0x0098090c (bool) : default=1 value=1
exposure 0x00980911 (int) : min=0 max=255 step=1 default=120 value=120 flags=inactive, volatile
gain_automatic 0x00980912 (bool) : default=1 value=1 flags=update
gain 0x00980913 (int) : min=0 max=63 step=1 default=20 value=20 flags=inactive, volatile
horizontal_flip 0x00980914 (bool) : default=0 value=0
vertical_flip 0x00980915 (bool) : default=0 value=0
power_line_frequency 0x00980918 (menu) : min=0 max=1 default=0 value=0 (Disabled)
0: Disabled
1: 50 Hz
sharpness 0x0098091b (int) : min=0 max=63 step=1 default=0 value=0 flags=slider
Camera Controls
auto_exposure 0x009a0901 (menu) : min=0 max=1 default=0 value=0 (Auto Mode) flags=update
0: Auto Mode
1: Manual Mode
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l1npengtul
commented on July 28, 2024
try v4l2-ctl -d /dev/video1 --list-formats-ext
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Meister1593
commented on July 28, 2024
v4l2-ctl -d /dev/video1 --list-formats-ext
[plyshka@fedora-36 plyshka]$ v4l2-ctl -d /dev/video1 --list-formats-ext
ioctl: VIDIOC_ENUM_FMT
Type: Video Capture
[0]: 'GRBG' (8-bit Bayer GRGR/BGBG)
Size: Discrete 320x240
Interval: Discrete 0.005s (187.000 fps)
Interval: Discrete 0.007s (150.000 fps)
Interval: Discrete 0.007s (137.000 fps)
Interval: Discrete 0.008s (125.000 fps)
Interval: Discrete 0.010s (100.000 fps)
Interval: Discrete 0.013s (75.000 fps)
Interval: Discrete 0.017s (60.000 fps)
Interval: Discrete 0.020s (50.000 fps)
Interval: Discrete 0.027s (37.000 fps)
Interval: Discrete 0.033s (30.000 fps)
Size: Discrete 640x480
Interval: Discrete 0.017s (60.000 fps)
Interval: Discrete 0.020s (50.000 fps)
Interval: Discrete 0.025s (40.000 fps)
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.067s (15.000 fps)
[1]: 'YUYV' (YUYV 4:2:2)
Size: Discrete 320x240
Interval: Discrete 0.005s (187.000 fps)
Interval: Discrete 0.007s (150.000 fps)
Interval: Discrete 0.007s (137.000 fps)
Interval: Discrete 0.008s (125.000 fps)
Interval: Discrete 0.010s (100.000 fps)
Interval: Discrete 0.013s (75.000 fps)
Interval: Discrete 0.017s (60.000 fps)
Interval: Discrete 0.020s (50.000 fps)
Interval: Discrete 0.027s (37.000 fps)
Interval: Discrete 0.033s (30.000 fps)
Size: Discrete 640x480
Interval: Discrete 0.017s (60.000 fps)
Interval: Discrete 0.020s (50.000 fps)
Interval: Discrete 0.025s (40.000 fps)
Interval: Discrete 0.033s (30.000 fps)
Interval: Discrete 0.067s (15.000 fps)
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Meister1593
commented on July 28, 2024
this is how i tried initializing it:
let mut camera = Camera::with_backend(
1,
Some(CameraFormat::new_from(640, 480, FrameFormat::YUYV, 15)),
CaptureAPIBackend::Video4Linux,
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Meister1593
commented on July 28, 2024
For reference: this is PlayStation Eye camera
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l1npengtul
commented on July 28, 2024
I can't reproduce this, nor do I have an Eye camera...
Sorry, but I don't think I can fix this.
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Related Issues (20)
- Compile issues on v4l2_pix_format in linux kernel 6.2 HOT 3
- Can't compile on archlinux 6.5.5-arch1-1 HOT 1
- Unable to access capture card on windows HOT 1
- Use AVCaptureDeviceTypeExternal on macOS
- what FrameFormat::GRAY is?
- Incorrect pixel format HOT 1
- AVFoundation backend is not passing the frame format HOT 1
- Meta: Current Status, Progress and Future Plans for this Project HOT 12
- Support for macOS continuity camera HOT 3
- Possible unsoundness HOT 1
- Switching devices leads to assertion failure at the device list. HOT 1
- threaded camera deadlock on stop stream HOT 1
- [Windows] Panic when no cams are connected
- [Request] BGR and GBR support HOT 1
- [Web] Update `jscam` example to function correctly in the latest version
- Build fails on multiple versions on Pop_OS! HOT 2
- v4l camera indexing isn't necessarily accurate
- Support AV1 coder
- failed to run custom build command for `v4l2-sys-mit v0.2.0` HOT 1
- Error windows build: "enum `FrameFormat` is private"
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