Mjpg - Axis Cgi

At the heart of this interaction lies the /axis-cgi/mjpg/video.cgi endpoint, a powerful tool that returns a motion JPEG stream. While modern cameras support H.264 and H.265, the MJPEG stream remains critical for legacy systems, custom dashboards, robotics vision, and low-latency applications.

import cv2 url = "http://root:pass@192.168.1.100/axis-cgi/mjpg/video.cgi?resolution=800x600" cap = cv2.VideoCapture(url)

http://<camera-ip>/axis-cgi/mjpg/video.cgi Most Axis cameras require digest or basic authentication. You must pass credentials either in the URL or in the HTTP headers: axis cgi mjpg

const streamUrl = 'http://192.168.1.100/axis-cgi/mjpg/video.cgi'; const auth = btoa('root:pass'); fetch(streamUrl, headers: 'Authorization': Basic $auth ) .then(response => const reader = response.body.getReader(); let boundary = ''; let buffer = '';

Introduction In the world of network surveillance and embedded video systems, few combinations have proven as enduringly useful as Axis CGI and the MJPEG video format. For over two decades, Axis Communications—the market leader in network video—has provided a robust, well-documented Common Gateway Interface (CGI) API. This API allows developers, integrators, and power users to interact directly with the camera’s firmware via simple HTTP requests. At the heart of this interaction lies the

| Parameter | Description | Example | |-----------|-------------|---------| | resolution | Width x Height | resolution=640x480 | | fps | Frames per second (camera max allowed) | fps=15 | | compression | JPEG quality (0-100, 100=best) | compression=30 | | camera | Select camera (for multi-sensor or PTZ) | camera=1 | | clock | Overlay timestamp | clock=1 | | text | Custom text overlay | text=My%20Stream | | date | Show date | date=1 | | quad | Apply quad view if supported | quad=1 | | rect | Crop region (x,y,w,h) | rect=100,100,400,300 | | rotation | Rotate image (0, 90, 180, 270) | rotation=90 | | mirror | Mirror image | mirror=1 | http://192.168.1.100/axis-cgi/mjpg/video.cgi?resolution=1280x720&fps=10&compression=25&clock=1&text=Front%20Door This will generate an MJPEG stream at 720p, 10 fps, medium compression, with a timestamp and custom text. Part 3: How to Consume the MJPEG Stream Method 1: HTML <img> Tag (Simplest) The most surprising fact: you can embed an Axis MJPEG stream directly in a web page using a static image tag.

| Endpoint | Purpose | |----------|---------| | /axis-cgi/jpg/image.cgi | Single JPEG snapshot | | /axis-cgi/com/ptz.cgi | Pan, tilt, zoom control | | /axis-cgi/param.cgi | Read or set configuration | | /axis-cgi/io/port.cgi | Control digital I/O ports | | /axis-cgi/operator/search.cgi | Search recorded video | You must pass credentials either in the URL

camera: - platform: generic name: Axis Front Door still_image_url: http://root:pass@192.168.1.100/axis-cgi/jpg/image.cgi stream_source: http://root:pass@192.168.1.100/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. 3. Legacy SCADA and Control Rooms Older industrial monitoring systems (no WebRTC support) can display multiple Axis MJPEG streams in an HTML frame grid. 4. Debugging and Field Testing Technicians use /axis-cgi/mjpg/video.cgi to quickly verify camera focus, angle, and lighting without specialized software. Part 7: Beyond MJPEG – Other Useful Axis CGI Endpoints While MJPEG is king for streaming, check out these related Axis CGI endpoints: