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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-09-13 04:24:49 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-10-28 02:22:42 +0200 |
| commit | 1a106752f37cf9119615e0db908d13b714f565d2 (patch) | |
| tree | 2b828a7359d3311e7cc9c8e0b855764d4c1b9cb5 | |
| parent | ab5d930762389f4200fb600c84580e6b79b2c153 (diff) | |
| download | ffmpeg-1a106752f37cf9119615e0db908d13b714f565d2.tar.gz | |
avcodec/dvdsubdec: Avoid branch in decode_run_8bit()
Speed improvment 35.5 sec -> 34.7sec
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 71bf0330505e2108935d05c5c018ec65eac4b946)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/dvdsubdec.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/libavcodec/dvdsubdec.c b/libavcodec/dvdsubdec.c index e18113c20c..a5107096df 100644 --- a/libavcodec/dvdsubdec.c +++ b/libavcodec/dvdsubdec.c @@ -82,10 +82,7 @@ static int decode_run_8bit(GetBitContext *gb, int *color) { int len; int has_run = get_bits1(gb); - if (get_bits1(gb)) - *color = get_bits(gb, 8); - else - *color = get_bits(gb, 2); + *color = get_bits(gb, 2 + 6*get_bits1(gb)); if (has_run) { if (get_bits1(gb)) { len = get_bits(gb, 7); |