so, compression settings works, and flac 1.4 compress better but MUCH slower ....
can you also post your compiler version and look into thirdparty/flac- folder to see if config.log differs much in 1.3 vs 1.4 case? especially all those assembly optimizations .....
> can you try same patches with flac 1.3.2 ?
(0) : ** rendered 9063 frames in 0.636 secs, 14250.000 fps, size 18.1 MiB
(5) : ** rendered 9063 frames in 0.631 secs, 14362.916 fps, size 17.3 MiB
(8) : ** rendered 9063 frames in 0.882 secs, 10275.510 fps, size 17.0 MiB