MediaCapabilities: query HDR with decodingInfo()

Misc

This specification provides APIs for websites to detect whether HDR formats, i.e. Dolby Vision, HDR10(+), and HLG, can be decoded and rendered by the browser. For HDR support detection, there are three main components whose capabilities need to be surfaced -- the decoder, renderer, and screen. The decoder takes in an encoded stream and produces a decoded stream understood by the renderer, which in turn maps the stream's signals to those the screen can properly output.

This API allows capable clients to enjoy high-end media playback experiences. Otherwise, HDR content does not get served to preserve networking bandwidth, playback quality, and power consumption.

Documentation

Specification

Editor's draft

Status in Chromium

Blink components: Blink>Media>Capabilities

In development (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

Firefox: No public signals
Edge: Public support
Safari: Public support
Web Developers: Positive

Owners

Last updated on 2020-02-03