@Garf
Yes, flac_msvc is working, but it encodes a little bit slower than the other.
EDIT: (new test with the new flac_msvc)
Testsystem:
CPU: 1.5GHz P4 "Williamette"
RAM: 512 MB SD-RAM PC133
HDD: WD 80GB 7.200upm
OS: WinXP SP2
Programm: foobar2000 0.8.3 (decoded: speed-meter)
=================================================================================
MODE SPEED x
ENCODE DECODE RATIO
FLAC 1.1.2
-0 25,95 40,43 68,06%
-1 25,43 39,60 66,55%
-2 23,13 40,00 65,89%
-3 21,94 36,56 66,43%
-4 19,90 35,88 64,80%
-5 17,94 36,58 64,30%
-6 17,60 36,23 64,21%
-7 7,82 36,92 64,09%
-8 6,20 35,88 64,05%
FLAC_MSVC 1.1.2.1 optimized by Garf
-0 24,93 41,29 68,06%
-1 24,45 40,00 66,55%
-2 19,90 40,84 65,90%
-3 21,33 37,29 66,27%
-4 18,28 35,88 64,71%
-5 16,33 36,92 64,17%
-6 12,92 36,92 64,07%
-7 3,75 36,92 63,91%
-8 2,91 36,23 63,87%
Seems to be a slight improvement in compression ratio from -3 up to -8, without any real effect on decoding speed.