camera

Qt Multimedia doesn’t seem to work on Touch

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Using Qt package ‘Multimedia’ to get cameras on the bq phone: QList<QCameraInfo> cameras = QCameraInfo::availableCameras(); cameras.size() always returns zero. Host 14.04, target 14.10, Qt 5.3.0. *.apparmor from core camera-app. Is it implemented? Answer I’ve just verified and seems QCameraInfo::availableCameras() always returns an empty list indeed. This seems like a bug. I’ve reported it here: https://bugs.launchpad.net/ubuntu/+source/qtmultimedia-opensource-src/+bug/1438072 … Read more

I cannot get my webcam to work on Ubuntu 15.04

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webcam type : GEMBIRD usb webcam webcam ID : 1908:2311 Program Used: cheese error message: libv4l2: error turning on stream: Input/output error (cheese:6118): cheese-WARNING **: Could not read from resource.: gstv4l2bufferpool.c(1023): gst_v4l2_buffer_pool_poll (): /GstCameraBin:camerabin/GstWrapperCameraBinSrc:camera_source/GstBin:bin18/GstV4l2Src:video_source: poll error 1: Input/output error (5) I also get a black screen with the sentence there was an error playing video … Read more

Point Grey BlackFly GigE Vision Camera Remote Access on Arch Linux

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Let me preface this by saying that I’m not sure SuperUser is the correct place to ask this question, so if it’s not, please advise and I’ll move as appropriate. I’m trying to use a Point Grey BlackFly GigE Vision camera while SSH-ing into a development machine remotely, so the solution I’m currently trying is … Read more

Dell Latitude E6520 – Windows 10 will not detect camera – 0xA00F4224

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I have Dell Latitude E6520, with Windows 10 Pro 64 bit. When I try to use the Camera app, I get error 0xA00F4224. I also cannot find the camera on Device Manager. I tried to install the camera’s driver from Dell website, but there are no drivers for Windows 10 for this device, and when … Read more

Windows Hello camera gets turned off after some time – how to increase or disable this timeout?

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I have added a Hello-capable camera to my Windows 10 (20H2) PC so that I can log on with face recognition without touching the keyboard our mouse. This generally works fine. However, after some time (a few minutes?) the camera disables itself and I need to either type in the PIN or change the sign-in … Read more

streaming of two cameras to two outputs

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How can I send two separate camera streams with one command? (The image from two cameras is sent to the same address but with different ports) ffmpeg -stimeout 5000000 -rtsp_transport tcp -i “rtsp://admin:password@192.168.0.14:554/Streaming/Channels/101/” -c:v copy -c:a aac -f mpegts udp://176.xxx.xxx.126:91?pkt_size=1316 ffmpeg -stimeout 5000000 -rtsp_transport tcp -i “rtsp://admin:password@192.168.0.15:554/Streaming/Channels/101/” -c:v copy -c:a aac -f mpegts udp://176.xxx.xxx.126:92?pkt_size=1316 If … Read more

MacOS Mojave | PyCharm Is not allowed to access to the camera

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I am trying to execute the following code: import cv2 video_capture = cv2.VideoCapture(0) print(‘Camera initialized’) ret, raw_frame = video_capture.read() video_capture.release() print(‘Bye!’) When I execute it from the native MacOS terminal, it is able to complete its execution. The problem came when I tried to do it from PyCharm. The first time I executed it from … Read more

How to connect a home network camera to an Amazon EC2 instance?

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I have a network camera in my home that I want to monitor from a software running on an Amazon EC2 instance. The home network have a dynamically assigned public IP address. My router is an Ubee and I have access to the router configuration. I also have a DNS name for my public IP … Read more