w3c / w3c/webcodecs

Alpha support

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#200 12 comments 3 reactions 0 assignees View on GitHub

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Description

Hello 👋

I tried to find informations about alpha support in the documentation, but I couldn't find anything talking about that.
Can you tell me if alpha is supported with vp8 / vp9 encoding?

I made a wasm implementation of libwebm to mux a .webm file from the WebCodecs video chunks, it works well but the alpha channel is ignored during the process.

Thank you 🙏

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Research direction

The report concerns WebCodecs video chunks, a wasm libwebm muxer, and VP8/VP9 encoding; begin by checking the WebCodecs encoding path and the format's alpha-channel support. Done should be a clear determination of whether alpha is supported and, if not, a defined scope for adding or documenting that support.

Written by the indexing model from the issue text.

Assessment

Tech stack
wasm
Domain
audio-video-rtc
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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