diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2006-10-08 13:20:22 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2006-10-08 13:20:22 +0000 |
| commit | 260ceb632295f7cea1248ed062e9ac95641edf27 (patch) | |
| tree | 65e24c8fc44b1d5f8b2f9d2eaad7f389209eaa88 /libavcodec/cabac.c | |
| parent | 99ce10873df41ba650e51c8069280a32a1f57961 (diff) | |
branchless renormalization (1% faster get_cabac) old branchless renormalization wasnt faster because gcc was scared of the shift variable (missusing bit variable now)
Originally committed as revision 6587 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/cabac.c')
| -rw-r--r-- | libavcodec/cabac.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/libavcodec/cabac.c b/libavcodec/cabac.c index 8dd00a3cd9..f724dd5368 100644 --- a/libavcodec/cabac.c +++ b/libavcodec/cabac.c @@ -73,22 +73,22 @@ const uint8_t ff_h264_lps_state[64]= { }; const uint8_t ff_h264_norm_shift[256]= { - 8,7,6,6,5,5,5,5,4,4,4,4,4,4,4,4, + 9,8,7,7,6,6,6,6,5,5,5,5,5,5,5,5, + 4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4, 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3, + 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3, + 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, + 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, + 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, + 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, + 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, + 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, - 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, }; /** |