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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-08-04 02:34:11 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-08-12 21:48:15 +0200 |
| commit | bf97d11b0881aae26410cb938c2bdd53585e7398 (patch) | |
| tree | bed9307cb7f90e60eaf03729054f792f7f52c939 | |
| parent | 82920bf49434d14ed0144319f785cc74a1534fc5 (diff) | |
| download | ffmpeg-bf97d11b0881aae26410cb938c2bdd53585e7398.tar.gz | |
avcodec/ivi: Factor width dereference out of the loops in ivi_output_plane()
396078 -> 268468 dezicycles
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/ivi.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/libavcodec/ivi.c b/libavcodec/ivi.c index ebb7f03007..b23d4af27e 100644 --- a/libavcodec/ivi.c +++ b/libavcodec/ivi.c @@ -914,13 +914,14 @@ static void ivi_output_plane(IVIPlaneDesc *plane, uint8_t *dst, ptrdiff_t dst_pi for (y = 0; y < plane->height; y++) { int m = 0; - for (x = 0; x < plane->width; x++) { + int w = plane->width; + for (x = 0; x < w; x++) { int t = src[x] + 128; dst[x] = t; m |= t; } if (m & ~255) - for (x = 0; x < plane->width; x++) + for (x = 0; x < w; x++) dst[x] = av_clip_uint8(src[x] + 128); src += pitch; dst += dst_pitch; |