v4l2
How does a V4L2 video capture driver knows where the stream is coming from
I need to write a driver that receives 24-bit RGB input and put it on the display (either by 3rd party app as mplayer, or by dumping it to the fame buffer, it is not important at the moment)[详细]
2023-03-23 01:26 分类：问答Two webcams on one usb 2.0 hub - works in windows but not linux
The openCV code below 开发者_运维问答grabs simultaneous images from two cameras. It works fine in windows, with the cameras both attached to one usb 2.0 hub. When I try the same code in linux, it only[详细]
2023-03-19 23:58 分类：问答Streaming Webcam with RTSP
I\'m trying a live streaming of videousing a web cam attached to my laptop. I am working in Linux Ubuntu.[详细]
2023-03-17 11:55 分类：问答Looking for example code integrating Qt4 and v4l2 library
As top开发者_Python百科ic , i tried source code from official website ( c language based ) , but not so complete , i\'d like to see some examples which can dump an image and transfer to a Qt class , Q[详细]
2023-03-06 20:39 分类：问答V4L2 invalid argument for the ioctl of DQBUF
I came across a V4L2 problem.Below is the code. v4l2_buffer queue_buf; CLEAR(queue_buf); queue_buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;[详细]
2023-03-01 01:33 分类：问答v4l2 very simple example [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]
2023-01-21 13:25 分类：问答Rails compatible .NET xml serialization
I am writing an ASP.NET MVC 2 site with R开发者_高级运维EST endpoints.I want to consume this service with ActiveResource in a Rails web application.[详细]
2022-12-19 02:39 分类：问答capture using v4l2 and display preview using gstreamer
How to pass the buffer/userpointer to gstreamer after Q_BUF, STREAM_ON, DQ_BUF. I tried using PIL\'s method frombuffer, but with no suc开发者_JS百科cess. so I want to use gst sink now.[详细]
2022-12-17 06:48 分类：问答streaming video to and from multiple sources
I wanted to get some ideas one how some of you would approach this problem. I\'ve got a robot, that is running linux and uses a webcam (with a v4l2 driver) as one of its sensors. I\'ve written a contr[详细]
2022-12-16 21:06 分类：问答user pointer in python
*I am trying to display preview from webcam captured using v4l. Here is an idea of how the code looks like:[详细]
2022-12-16 06:34 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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