<img src="http://root:password@192.168.0.90/axis-cgi/mjpg/video.cgi?resolution=640x480" />
When building a robot with a Raspberry Pi, fetching MJPEG frames via OpenCV is easier than decoding H.264. The low latency helps with real-time object detection.
The video.cgi request supports several arguments that allow you to customize the stream on the fly. These are appended to the URL as query parameters: axis cgi mjpg
: The "boundary" string is used to separate each individual JPEG image in the data stream. This allows the receiving client to know exactly where one frame ends and the next begins. Customization
Axis cameras feature an API that allows external systems to interact with them via HTTP requests. These requests, such as /axis-cgi/mjpg/video.cgi , command the camera to perform actions like starting a video stream. <img src="http://root:password@192
/axis-cgi/mjpg/video.cgi" alt="Axis Live Stream"> Use code with caution. Copied to clipboard
"The Common Gateway Interface," Elias whispered, almost reverently. "The CGI. It was the Achilles heel of the old surveillance age. Administrators wanted easy access, so they left a backdoor open for snapshots. No password. Just a request." These are appended to the URL as query
Eliminates the need to install bulky, language-specific software development kits.
MJPEG is a video compression format where each video frame is compressed individually as a separate JPEG image. Unlike H.264 or H.265, MJPEG does not use inter-frame compression (predicting motion between frames). Advantages of MJPEG Disadvantages of MJPEG Extremely low latency High bandwidth consumption Low CPU overhead to decode Large storage footprint for recording Universally supported by web browsers No native audio integration in the stream High quality per individual frame Subject to network jitter The Core Axis MJPEG CGI URL Structure
Source: GitHub AxisCommunications Discussion