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

15 mentions on Hacker News by 11 people: 1 story, 14 comments · first 2020-01-04 · latest 2025-12-25

Mentions per year 15 mentions · busiest year 2023 (6)
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  1. …(text-draws, etc). Maybe having an ImageEncoder API might be worthwhile after all then https://github.com/w3c/webcodecs/issues/204 .
    comment by DaleCurtis · 2025-12-25 · in Show HN: WebPtoPNG – I built a WebP to PNG tool, everything runs in the browser
  2. …trying to do it fully clientside, it would be slow and all, here is a bit about the alternatives: https://github.com/w3c/webcodecs/blob/main/explainer.md none of those alternatvies were specifically just for decoding and encoding, usually…
    comment by zenkyu · 2024-05-12 · in Show HN: Open-Source Video Editor Web App
  3. Encoding alpha, please! https://github.com/w3c/webcodecs/issues/672 Thanks for the great work on WebCodecs!
    comment by krebby · 2023-10-30 · in Replacing WebRTC: real-time latency with WebTransport and WebCodecs
  4. …abstraction on top of QP work for the case you have in mind? * Reference frame control seems to be https://github.com/w3c/webcodecs/issues/285 , there's some interest in this for 2024, so I'd expect progress here. * Does splitting frames…
    comment by DaleCurtis · 2023-10-30 · in Replacing WebRTC: real-time latency with WebTransport and WebCodecs
  5. …codec and bitstream parameters. If it's H264 or H265, there's some more discussion and links here: https://github.com/w3c/webcodecs/issues/698#issuecomment-161... The optimizeForLatency parameter may also help in some cases:…
    comment by DaleCurtis · 2023-10-30 · in Replacing WebRTC: real-time latency with WebTransport and WebCodecs
  6. https://blog.paul.cx/post/audio-video-synchronization-with-t... has some background, https://github.com/w3c/webcodecs/blob/main/samples/lib/web_a... is part of a full example that you can run using web codecs, web audio, audioworklet…
    comment by padenot · 2023-10-30 · in Replacing WebRTC: real-time latency with WebTransport and WebCodecs
  7. …"We may need more encoding options, like non-reference frames or SVC", please file issues at https://github.com/w3c/webcodecs/issues
    comment by DaleCurtis · 2023-10-30 · in Replacing WebRTC: real-time latency with WebTransport and WebCodecs
  8. …a three.js animation. [0] https://developer.mozilla.org/en-US/docs/Web/API/WebCodecs_A... [1] https://github.com/w3c/webcodecs
    comment by qwertox · 2023-03-18 · in Real-Time Video Processing with WebCodecs and Streams
  9. …be the ultimate way to handle all of this in the future but it is only working in Chrome I think https://github.com/w3c/webcodecs
    comment by tylerlarson · 2021-08-29 · in Show HN: I made a meme creator that makes around $4k a month
  10. …this issue should hopefully be addressed whenever WebCodecs is standardized and implemented: https://github.com/WICG/web-codecs/issues/28 But until then it's quite disappointing that developers have to go as far as rolling their own…
    comment by aeroheim · 2020-09-25 · in Show HN: Decode audio files in the browser without insane memory usage
  11. …and decode some audio and video as well to make that useful. For that, there is WebCodecs (see https://github.com/WICG/web-codecs or https://www.chromestatus.com/feature/5669293909868544 ) For use cases like live streaming and cloud…
    comment by pthatcherg · 2020-06-16 · in Show HN: WebRTC Insertable Streams and server processing
  12. …ttps://www.w3.org/2019/09/18-mediaprocessing-harald-inserta... or something more low-level like this: https://github.com/WICG/web-codecs/blob/master/explainer.md ). But the web standard not being there yet doesn't prevent someone from…
    comment by pthatcherg · 2020-03-31 · in Zoom meetings aren’t end-to-end encrypted, despite marketing
  13. …protocols customized to their needs [2] [3]. [1] https://w3c.github.io/openscreenprotocol/ [2] https://github.com/WICG/web-codecs [3] https://github.com/WICG/web-transport (client/server), https://w3c.github.io/webrtc-quic/ (P2P) If you…
    comment by mfoltzgoogle · 2020-03-03 · in NymphCast: Casual attempt at open alternative to Chromecast
  14. …that would let video encoding be accelerated without going through the entire WebRTC pipeline: https://github.com/WICG/web-codecs/blob/master/explainer.md Somewhat tangentially related, for cases when P2P connectivity is not needed,…
    comment by vasilvv · 2020-01-04 · in Show HN: Pure C WebRTC implementation for embedded devices