vdrPlugins.vaapidevice: ffmpeg_3 -> ffmpeg
vdrPlugins.vaapidevice: ffmpeg_3 -> ffmpeg

Luckily, it seems to build properly with no changes.
Inspecting the logs further reveals that it built with only deprecation warnings.

NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs