WebCodecs Fundamentals
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Overview
A comprehensive WebCodecs tutorial - learn VideoDecoder, VideoEncoder, audio processing, transcoding and playback patterns. Includes real-world codec support data referenced by MDN, CanIuse, and Chrome Developers.
News
AV1, H265 support in 2026: Data from 1M+ devices
Empirical analysis of AV1, HEVC, VP9, and H.264 support across 1.1 million real-world browser sessions. Key findings: AV1+HEVC covers 99.7% for decode, VP9 is as universal as H.264, and the 10-bit encoding wall affects every codec family.
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WebCodecs Codec Support Table
Real-world WebCodecs codec support across browsers and platforms - 1,087 codec strings tested across 1.1M user sessions. Find which codecs work in Chrome, Safari, Firefox, and Edge.
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Livestreaming web audio and video - Media MDN
Livestreaming technology is often employed to relay live events such as sports, concerts and more generally TV and Radio programmes that are output live. Often shortened to just streaming, livestreaming is the process of transmitting media 'live' to compu
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