FFmpeg 7.0 Upgrade

[JonnyBurger]

From message posted on Discord by artisangoose

👋 Me again! Was here last year with an ffmpeg bug that prevented ProRes videos from rendering properly on M2 Max. #1929

I've started a brand new Remotion project with the latest version, and while I don't see flickering anymore, I don't see alpha channels being handled properly. The encoded result says that it contains an Alpha channel, but the background of the video is black and the "fade-in" effect that works as expected in Remotion Studio does not work; the text is either 0% or 100% opacity in these renders. What can I provide to help debug this?

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This bug could be solved by upgrading to FFmpeg 7.0