WebCam-V4L2

WEBCAM-V4L2 is a software which allows to capture images and video from USB cameras using the V4L2 API.

Usage

Compile

In Beaglbone.

$ ./compile.sh beaglbone

In Ubuntu.

$ ./compile.sh ubuntu

Execute

$ cd src
$ ./main

Usage: ./main [options]

Options:
-d | --device name   Video device name [ /dev/videoN ]
-t | --type          Capture type [ video | frames ]
-f | --format        Image format [ YUYV | JPEG ] (only applicable for type: frames)
-w | --width         Image width
-h | --height        Image height
-m | --method        Capture method [ mmap | read | userp ]
-n | --number        Number of frames to capture

Display

Images

Images can be displayed with any viewing application

Video

MJPEG is a rare video format without a standard. I use "vlc" to display de videos.

$ vlc --demux=mjpeg --mjpeg-fps=15 result/video.mjpeg 

Environment

Platform

This software has been tested is the following platforms:

• Ubuntu 16.04 - Linux kernel: 4.4.0-57
• Beaglebone - Linux kernel: 3.8.13

Webcam

This software has been tested with the following cameras:

• Logitech c170

Disclaimer

This software has been based on the example provided in the V4L2 API.