libv4l2_opencv_mat

KO | EN

gitlite — search

#javascript #python #llm #go #golang #nodejs #java #cli #kubernetes #vue #awesome-list #security #openai #open-source

libv4l2_opencv_mat

(★ 31)

v4l2 to oepncv mat,surport V4L2_PIX_FMT_YUYV,V4L2_PIX_FMT_MJPEG,V4L2_PIX_FMT_NV12,V4L2_PIX_FMT_YVU420,V4L2_PIX_FMT_YUV420

libv4l2_opencv_mat Latest Version Download

Download Latest Version (.zip)

// repository documentation

Was this content helpful?

★ 0 (0 ratings)

libv4l2cpp
====================

It is a C++ wrapper for V4L2 mofified from  https://github.com/mpromonet/libv4l2cpp by mpromonet.
I added more prints and solved  problem which is a video device may have rather than one video resource.And main keypoints I added was opencv Mat BGR format surport.

Dependencies
------------
 - liblog4cpp5-dev (optional)
 
V4L2 Capture
-------------
 - create a V4L2 Capture interface using MMAP interface:

V4L2DeviceParameters param("/dev/video0", V4L2_PIX_FMT_*, width, height, fps, input_index, verbose);
         V4l2Capture* videoCapture = V4l2Capture::create(param, V4l2Access::IOTYPE_MMAP);

- data are available :

timeval timeout; 
         bool isReadable = (videoCapture->isReadable(&timeout) == 1);

- read data :

size_t nb = videoCapture->read(buffer, bufferSize);

V4L2 Output
-------------

- To create a V4L2 Output interface using MMAP interface:

V4L2DeviceParameters param("/dev/video0", V4L2_PIX_FMT_*, width, height, fps, input_index , verbose);
         V4l2Output* videoOutput = V4l2Output::create(param, V4l2Access::IOTYPE_MMAP);

- data could be written :

timeval timeout; 
         bool isWritable = (videoOutput->isWritable(&timeout) == 1);

- write data :

size_t nb = videoOutput->write(buffer, bufferSize);

libv4l2_opencv_mat

libv4l2_opencv_mat Latest Version Download

Today's picks

Was this content helpful?

Recent Feedback

libv4l2_opencv_mat

libv4l2_opencv_mat Latest Version Download

Today's picks

Was this content helpful?

Recent Feedback

Download README