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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-01-27 00:49:14 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-01-31 17:17:17 +0100 |
| commit | 5d0139d5f0aa9fc16661891e40efdb2671ff1726 (patch) | |
| tree | 9332140b61567397033d15cad4fb99e30786274e /libavcodec | |
| parent | fe1ccc1e91168c855a2720d0a195377f4638cc70 (diff) | |
| download | ffmpeg-5d0139d5f0aa9fc16661891e40efdb2671ff1726.tar.gz | |
avcodec/ffv1: Simplify fold()
No speed difference, or slightly faster (the difference is too small so it may be noise
that this appears faster)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/ffv1.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/libavcodec/ffv1.h b/libavcodec/ffv1.h index 653138b070..7c29d01f51 100644 --- a/libavcodec/ffv1.h +++ b/libavcodec/ffv1.h @@ -153,9 +153,7 @@ static av_always_inline int fold(int diff, int bits) if (bits == 8) diff = (int8_t)diff; else { - diff += 1 << (bits - 1); - diff = av_mod_uintp2(diff, bits); - diff -= 1 << (bits - 1); + diff = sign_extend(diff, bits); } return diff; |