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Questions tagged [uvc]

UVC is a short for USB Video device Class (also USB video class) and it is a USB device class that describes devices capable of streaming video like webcams, digital camcorders, transcoders, analog video converters and still-image cameras.

UVC is a short for USB Video device Class (also USB video class) and it is a USB device class that describes devices capable of streaming video like webcams, digital camcorders, transcoders, analog video converters and still-image cameras.

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Exec format error on new Linux kernel Module

-PROBLEM DESCRITION I’ve compiled a new uvcdriver.ko https://github.com/Giuliano69/uvc_driver-for-Quanta-HD-User-Facing-0x0408-0x4035- but I’m facing this error once I try to install the module giuliano@Astra2A:~$ sudo rmmod uvcvideo && sudo…
Giuliano69
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Python OpenCV with Imaging device USB3 Vision compliant camera - VideoCapture() index of camera not found

I have a problem with using external camera in Python OpenCV. I am using Windows. In device manager, camera is not under "Cameras", but under "Imaging devices" and is called USB3 Vision compliant camera. The camera is working fine on app given by…
Miroslav Blabla
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How to implement a UVC extension unit control for a USB camera app in Android?

The idea is develop an Android App for capturing the video from an USB camera. The chip in the camera sends UVC video. The chip in the camera can be controlled using UVC Extension Unti Control. The chip manufacturer only gives the Extension Unit…
Joel
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Does the Linux UVC gadget driver support uncompressed formats besides YUYV?

I want to output NV12 or NV21, but only MJPEG and YUY2 (aka YUYV) show up as available on the client. The available formats are determined by the UVC gadget driver. I checked…
Yale Zhang
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How to get the default, max, min value of Video Proc Amp/Camera Control parameters from UVC camera?

I want to get the default, max, and min values of control parameters from UVC camera like the picture. I try to get the default value with the below function. However, it only gets the current value of XU control and I cannot get the default values…
Verizz
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uwp uvc camera focus unsupported

uwp uvc camera focus unsupported The code below does not apply. mediaCapture.VideoDeviceController.FocusControl.Configure(new FocusSettings { Mode = FocusMode.Auto }); await mediaCapture.VideoDeviceController.FocusControl.FocusAsync(); var…
Hyoungcheol Park
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OpenCV usb uvc extension units for camera input

So i'm tying to get usb uvc extension units working with opencv. I've tried looking for extension units, vendor specific units or XU units and nothing has shown up. Does opencv has this ability.
used_up_user
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Cannot move camera using libuvc

I'm trying to control my camera using libuvc. I tried this code I modified from the example: #include #include #include int main() { uvc_context_t *ctx; uvc_device_t *dev; uvc_device_handle_t *devh; …
Yuutsuna
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Read frames from UVC camera

My camera is sporting 'GREY' and 'Y16' formats. the output of v4l2-ctl --list-formats -d 0 # 0 is video0 is: ioctl: VIDIOC_ENUM_FMT Type: Video Capture [0]: 'GREY' (8-bit Greyscale) [1]: 'Y16 ' (16-bit Greyscale) now if i use basic…
Maharshi Oza
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UVC MJPEG stream - Is it possible to extract jpeg images from a USB UVC stream?

I am using a STM32 microcontroller code base that someone wrote to read UVC data from an HDMI to USB interface. I'm able to collect image data setting it to MJPEG format but am having trouble getting valid…
user2654735
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Is it possible to set an external microphone in android?

I am using a UVC camera right now, and sending video and audio from UVC camera to Android phone When I try to record with AudioRecord, strange values come in and I am confused. Is there a way to set AudioRecord to use the UVC Camera's…
OhsureBoy
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'select timeout' for opencv application while running on yocto linux environment

We are trying to port opencv application on an single board computer which runs on Yocto Linux and while doing that we have had many issues. Issues related to drivers, which are solved by changing the configuration file of the kernel and all. We…
Hemant Bhargava
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java.lang.ClassNotFoundException binding java library in Xamarin.Android

I'm trying to bind the libuvccamera java library to access UVC camera in Android device developing in Xamarin.Android, and during the binding of the libuvccamera.aar and the usbCameraCommon.aar file I've a lot of trouble. Once of this is the…
ll_gzr
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Bresser MikroCam SP 5.0 Does not have Driver for Anchor Chips (ID 0547:1236)

I have been assigned to use the Bresser MikroCam SP 5.0 camera. This camera is using Anchor Chips Inc with a vendor ID of 0547. I have tried to find a driver for allowing the chip to be recognized as a video input but it shows me a dead end. For…
JOI
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ffplay - specify a input pixel format from UVC cam (via V4L2)

I develop a UVC device that can stream the video but its output format is RGB565, and UVC is not supported RGB. So, I declare my output is YUV422 (also 16 bit per pixel), now I can see my image but its color is incorrect (of course..). Is it…
Lak Fu
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