Skip to content

WebCodecs is a flexible web API for encoding and decoding audio and video.

License

Notifications You must be signed in to change notification settings

webrtcHacks/webcodecs

 
 

Folders and files

NameName
Last commit message
Last commit date

Latest commit

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Repository files navigation

WebCodecs

The WebCodecs API allows web applications to encode and decode audio and video.

Many Web APIs use media codecs internally to support APIs for particular uses:

  • HTMLMediaElement and Media Source Extensions
  • WebAudio (decodeAudioData)
  • MediaRecorder
  • WebRTC

But there’s no general way to flexibly configure and use these media codecs. Because of this, many web applications have resorted to implementing media codecs in JavaScript or WebAssembly, despite the disadvantages:

  • Increased bandwidth to download codecs already in the browser.
  • Reduced performance
  • Reduced power efficiency

It's great for:

  • Live streaming
  • Cloud gaming
  • Media file editing and transcoding

See the explainer for more info.

Code samples

Please see https://w3c.github.io/webcodecs/samples/

WebCodecs registries

This repository also contains two registries:

  • The WebCodecs Codec Registry provides the means to identify and avoid collisions among codec strings used in WebCodecs and provides a mechanism to define codec-specific members of WebCodecs codec configuration dictionaries. Codec-specific registrations entered in the registry are also maintained in the repository, please refer to the registry for a comprehensive list.

  • The WebCodecs VideoFrame Metadata Registry enumerates the metadata fields that can be attached to VideoFrame objects via the VideoFrameMetadata dictionary. Metadata registrations entered in the registry may be maintained in this repository or elsewhere. Please refer to the registry for a comprehensive list.

About

WebCodecs is a flexible web API for encoding and decoding audio and video.

Resources

License

Stars

Watchers

Forks

Releases

No releases published

Packages

No packages published

Languages

  • HTML 99.7%
  • Makefile 0.3%