ffv1: fix calculating slice dimensions for version 2

It got broken in 0f13cd3187.

CC:libav-stable@libav.org
(cherry picked from commit d243896987)

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
This commit is contained in:
Anton Khirnov
2013-02-19 08:15:07 +01:00
committed by Reinhard Tartler
parent 62a657de16
commit d48da91373

View File

@@ -735,8 +735,8 @@ 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;