September 1, 2026
10 min read
ffmpeg Loses HEVC Alpha: Transparent Video Fix
Transparent HEVC .mov comes out of ffmpeg with a baked-in background? ffmpeg silently drops Apple's alpha layer. The ProRes 4444 pipeline that fixes it.
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September 1, 2026
10 min read
Transparent HEVC .mov comes out of ffmpeg with a baked-in background? ffmpeg silently drops Apple's alpha layer. The ProRes 4444 pipeline that fixes it.
July 9, 2026
8 min read
Get "Operation not permitted" running ffmpeg on a file in Downloads on macOS? It's TCC blocking your terminal app, not a broken install — here's the real fix.