[FFmpeg-cvslog] mandelbrot: only check periodicity once for each period instead of twice.

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sun Nov 13 16:37:55 2011 +0100| [1d066087327ef3eb496ad5d78b4ccc0d40c5c9d6] | committer: Michael Niedermayer

mandelbrot: only check periodicity once for each period instead of twice.

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1d066087327ef3eb496ad5d78b4ccc0d40c5c9d6
---

 libavfilter/vsrc_mandelbrot.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/libavfilter/vsrc_mandelbrot.c b/libavfilter/vsrc_mandelbrot.c
index 7bcf3b7..6f9644d 100644
--- a/libavfilter/vsrc_mandelbrot.c
+++ b/libavfilter/vsrc_mandelbrot.c
@@ -194,7 +194,7 @@ static void draw_mandelbrot(AVFilterContext *ctx, uint32_t *color, int linesize,
                 zi= 2*zr*zi + ci;
                 zr=       t + cr;
                 if(use_zyklus){
-                    if(i && mb->zyklus[i>>1][0]==zr && mb->zyklus[i>>1][1]==zi)
+                    if((i&1) && mb->zyklus[i>>1][0]==zr && mb->zyklus[i>>1][1]==zi)
                         break;
                     mb->zyklus[i][0]= zr;
                     mb->zyklus[i][1]= zi;