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ffv1: fix calculating slice dimensions for version 2

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It got broken in 0f13cd3187.

CC:libav-stable@libav.org
This commit is contained in:
Anton Khirnov 2013-02-19 08:15:07 +01:00
parent 7b89cd20d8
commit d243896987
1 changed files with 2 additions and 2 deletions
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4
libavcodec/ffv1dec.c
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@ -734,8 +734,8 @@ static int read_header(FFV1Context *f)
fs->slice_x /= f->num_h_slices;
fs->slice_y /= f->num_v_slices;
fs->slice_width /= f->num_h_slices - fs->slice_x;
fs->slice_height /= f->num_v_slices - fs->slice_y;
fs->slice_width = fs->slice_width / f->num_h_slices - fs->slice_x;
fs->slice_height = fs->slice_height / f->num_v_slices - fs->slice_y;
if ((unsigned)fs->slice_width > f->width ||
(unsigned)fs->slice_height > f->height)
return AVERROR_INVALIDDATA;