Add vp9 support for E2EE

[lukasIO]

Unfortunately av1 fails with TypeError: Destination stream closed when trying to decode frames. This needs further investigation.
Until then, VP9 addition is nice, too!

~~Caveats: this is currently only secure if backupCodec: undefined is specified. Backup codecs are currently sent unencrypted, which is definitely unexpected. ~~
^ backup codecs are currently disabled in general when e2ee is enabled

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🦋 Changeset detected

Latest commit: 708003f

The changes in this PR will be included in the next version bump.

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livekit-client	Patch

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size-limit report 📦

Path	Size
dist/livekit-client.esm.mjs	80.24 KB (0%)
dist/livekit-client.umd.js	86.06 KB (0%)

[lukasIO]

closing for now due to the backupCodec complications

[Stogas]

@lukasIO

Could you elaborate a little bit?

I'd still consider this open, as VP9 support is still wanted and missing.

[lukasIO]

hi @Stogas,

encryption support for backup codecs is missing, which would be needed to ensure that also clients that don't support vp9 would be able to receive the media stream.

I can reopen the issue, but there's currently no ETA for encryption support of backup codecs

[davidzhao]

We should disable backupCodec when e2ee is used. since vp9 is supported everywhere, I think the impact of that should be fairly minimal

[lukasIO]

We should disable backupCodec when e2ee is used.

That's what we do already today.
I'll update this PR in order to merge it in

[davidzhao]

awesome!