fandrej / uvc2http

uvc2http

A Linux tool for video streaming from USB cameras.

Uvc_streamer is an alternative for mjpg_streamer. It is targeted for small Linux devices (like routers with OpenWrt).

Requirements:

• USB video camera with MJPG capture mode support (tested with Logitech B910);
• Linux system with installed driver "uvcvideo" (tested with router TP-Link MR3020 + OpenWrt 15.05);
• C++11 compiler (tested with GCC 4.8.3).

Usage:

• Build and run. By default it uses following settings:
  • camera "/dev/video0";
  • capturing mode 640x480x15;
  • listening at TCP port 8081.

Configuration:

• Put your configuration to file "Config.cpp" and rebuild. A few parameters can be specified via CLI: --device DEVICE camera device name --buffers NUMBER capture buffers number --width WIDTH frame width --height HEIGHT frame height --fps FPS capture fps --port PORT HTTP server port For example: uvc2http --device /dev/video0 --buffers 4 --width 1280 --height 720 --fps 30 --port 8080
• Note:
  • Real capture framerate can depend on lighting conditions (exposition settings).
  • Streameing can influence framerate on clients.

Expected results:

• On a router TP-Link MR3020 it produces up to 20 frames at resolution 1280x720.
• On a PC with 4 core CPU frame rate is limited only by camera restrictions.

Differences from mjpg_streamer

• Uses only 1 thread;
• No memory copying;
• Small memory consumption;
• Small CPU utilization.