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imgutils: Fix illegal read.
Found with address sanitizer.
Signed-off-by: Alex Converse <alex.converse@gmail.com>
(cherry picked from commit c693aa6f71
)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -125,7 +125,7 @@ int av_image_fill_pointers(uint8_t *data[4], enum PixelFormat pix_fmt, int heigh
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has_plane[desc->comp[i].plane] = 1;
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total_size = size[0];
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for (i = 1; has_plane[i] && i < 4; i++) {
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for (i = 1; i < 4 && has_plane[i]; i++) {
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int h, s = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;
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data[i] = data[i-1] + size[i-1];
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h = (height + (1 << s) - 1) >> s;
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