Fix dual stream with factory API.

[michelinewu]

Fixes for:

• Crashing every time streaming dual mode to YT
• Stream crashes immediately after going live with Twitch both enabled
• Vertical Recording Records Horizontal

[bundlemon]

BundleMon

Files added (4)

Status	Path	Size	Limits
✅	renderer.(hash).js	+7.73MB	-
✅	vendors~renderer.(hash).js	+4.67MB	-
✅	updater.js	+115.29KB	-
✅	guest-api.js	+40.23KB	-

Total files change +12.54MB

Final result: ✅

View report in BundleMon website ➡️

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Current branch size history

[wesrupert]

This cast has a code smell to me. Is there a reason we don't have the | null type annotation on this.contexts[c][t], if it's expected to get nulled out here? Where is contexts defined?

[michelinewu]

contexts is defined on line 192 to be used as a private store for the instances. The casting is for strictnulls. Without it there is the error:
TS2352: Conversion of type 'null' to type '(ISimpleStreaming | IAdvancedStreaming) & ((ISimpleRecording | IAdvancedRecording) & (ISimpleReplayBuffer | IAdvancedReplayBuffer))' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first.