I only tested the mp4als_intel until now.
Wait a minute...
EDIT:
No, only mp4als_intel refuses to work with -p
mp4als_sse2 and mp4als_gen are working.
Will make a test with this two versions later at night.
EDIT2: (added new tests with mp4als_gen and mp4als_sse2, but without -z-switches, because they are too slow for realtime decoding, at least on my system...)
Testsystem:
CPU: 1.5GHz P4 "Williamette"
RAM: 512 MB SD-RAM PC133
HDD: WD 80GB 7.200upm
OS: WinXP SP2
=================================================================================
MODE SPEED x
ENCODE DECODE RATIO
MPEG-4 ALS RM16
-o5 14,60 42,25 63,29%
Default 10,05 31,91 62,94%
-p 2,14 24,79 62,80%
-a -o30 11,98 22,81 62,85%
-a -b -o50 7,52 12,77 62,29%
-7 0,31 4,73 61,83%
MPEG-4 ALS optimized by Garf (mp4als_intel.exe)
-o5 33,33 48,00 63,29%
Default 24,49 36,81 62,93%
-p CRASH ----- ------
-a -o30 16,35 25,21 62,85%
-a -b -o50 10,33 15,31 62,29%
-7 0,69 10,42 61,96%
MPEG-4 ALS optimized by Garf (mp4als_sse2.exe)
-o5 33,90 45,80 63,29%
Default 25,64 35,93 62,93%
-p 2,55 27,78 62,80%
-a -o30 16,71 25,75 62,85%
-a -b -o50 11,09 16,13 62,28%
-7 0,73 10,79 61,96%
MPEG-4 ALS optimized by Garf (mp4als_gen.exe)
-o5 33,71 45,80 63,29%
Default 25,21 35,50 62,93%
-p 2,54 27,65 62,80%
-a -o30 16,53 25,21 62,85%
-a -b -o50 10,89 15,92 62,29%
-7 0,72 10,75 61,96%
Very effective speed-up with all settings compared to the "original" mp4alsRM16.
Now i could die for a directshow-decoder and/or a foobar2000-plugin, because compression ratio and speed is near by my so far prefered wavpack
Very excellent work!!!
Its a real speed-up of the codec.
Is it still specs-compliant or have you changed anything that could break the specs?