ffmpeg/libavfilter
Clément Bœsch 3429714f3d avfilter/dctdnoiz: fix slice_h computation
ceilf() can only work if the reminder of the division is not 0.

This fixes memory errors with for instance:
  ffmpeg -f lavfi -i testsrc=s=800x500 -threads 3 -vf dctdnoiz -frames:v 1 -f null -

(cherry picked from commit eb7efaa9244720c5f2051d76d76faeec864eca7a)
2015-02-12 20:21:56 +01:00
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