Re: [mediacapture-fromelement] Must the alpha channel be preserved, and what about encoding in an alpha-less format? (#30)

> My assumption was that WebM/VP8 would handle the transparency.

There's alpha support for webm/vp8, but the alpha channel data is passed in webm's BlockAdditional field, i.e., it's a webm-specific feature.

With WebRTC there's no webm container involved, and AFAIK there's no spec covering rtp/vp8 with alpha.

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Received on Monday, 1 February 2021 12:09:06 UTC