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avcodec/tiff: fix odd dimensioned yuv 

Fixes Ticket3893

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-09-15 01:33:09 +02:00
parent 04b0dda853
commit 6beea6f017
1 changed files with 3 additions and 1 deletions
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4
libavcodec/tiff.c
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@ -510,7 +510,9 @@ static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int strid
}
dst = s->yuv_line;
stride = 0;
width = s->width * s->subsampling[1] + 2*(s->width / s->subsampling[0]);
width = (s->width - 1) / s->subsampling[0] + 1;
width = width * s->subsampling[0] * s->subsampling[1] + 2*width;
av_assert0(width <= bytes_per_row);
av_assert0(s->bpp == 24);
}