[tkfoss]

Those decoders aren't even compiled and activated in the released binaries. But in any case, why would that be FFMPEGs problem?

[yegle]

Please stop spreading this misinformation. At least in Debian this is enabled by default (and as another post indicates, Ubuntu as well).

Run the following command to confirm:

ffmpeg -codecs|grep sanm

[tkfoss]

You re right, thanks!

ffmpeg version 8.0 Copyright (c) 2000-2025 the FFmpeg developers ... D.V.L. sanm LucasArts SANM/SMUSH video

[astrange]

If you're using ffmpeg it's recommended to just enable the things you need, or only accept some container formats. But yes, in a generic package everything is enabled.