[Cin] flac 1.4.0

[Andrea paz]

Great! The results are excellent:

(0) : ** rendered 9063 frames in 0.641 secs, 14138.846 fps, size 18.1 MiB

(5) : ** rendered 9063 frames in 0.632 secs, 14340.190 fps, size 16.1 MiB

(8) : ** rendered 9063 frames in 1.134 secs, 7992.063 fps, size 15.8 MiB

Perhaps ffmpeg's flac preset is better, but even so it is great (with
ffmpeg it goes from 0.6 sec with 44 MiB files up to 4 sec with 4.7 MiB
files).
Thanks!