Video stream

As explained in Web Components in Action

A video feed is a continuing sequence of video frames supplied by a camera or another source.

How Web Components in Action covers it

How deep it goes

Explains stream setup, frame exposure, refresh timing, and effects, but defers the component's underlying implementation.

Examples

Demonstrates camera playback, canvas refresh, black-and-white filtering, video snow, edge detection, and custom shaders.

What it assumes

Assumes JavaScript and browser-component familiarity while hiding the repetitive mechanics of starting streams and exposing frames.

What you can do after

Apply camera-backed streams through a custom video component and experiment with canvas, ImageData, or WebGL effects.

How it connects

Connects video streams with JavaScript, canvas, Web Components, WebGL, shaders, and video filters.

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Related concepts

• web applicationused by · A web application is software that provides functionality through web technologies and is accessed by users through a browser or other web client.
• face-detection algorithmused by · A face-detection algorithm identifies and locates regions corresponding to human faces in images or video.
• change detectionused by · Change detection is the process of identifying relevant differences between successive states and determining the updates required in response.
• cameraproduced by · A camera is an imaging device that captures visual information from its surroundings for recording, display, monitoring, or analysis.

This explainer was generated by Manning's knowledge graph from the text of Web Components in Action. The section links point to the parts of the book it draws on.