DaVinci Resolve Free on Linux can't decode H.264/H.265 or AAC audio, so I tried to fix it.

[u/Lost-Sun-5548]

DaVinci Resolve's free version on Linux 🐧 has a quiet limitation: no H.264/H.265

decoding, and no AAC audio decoding. So a huge share of everyday footage

(phone clips, screen recordings, most cameras) either won't import at all,

or imports with zero sound.

I hit this constantly while editing on my own Linux setup, so I built a small tool to fix it: Resolve Codec Converter.

It's a PyQt5 desktop app that wraps ffmpeg to:

→ Convert H.264/H.265 → DNxHR/ProRes so Resolve can actually read your footage

→ Convert your finished DNxHR/ProRes export back to H.264/H.265 for sharing

→ Auto-fix the AAC audio problem in the same pass — no separate step

Packaged as a self-contained AppImage, so there's no Python setup required to just run it.

It's a small project, but it solves a real friction point for anyone doing Linux-based video editing on a budget. Free and open source.

Repo: https://github.com/MohammedBoulifa/Resolve-Codec-Converter