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imgutils: Fix illegal read.

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Found with address sanitizer.

Signed-off-by: Alex Converse <alex.converse@gmail.com>
This commit is contained in:
Thierry Foucu 2011-11-18 17:36:50 -08:00 committed by Alex Converse
parent ff3755cbde
commit c693aa6f71
1 changed files with 1 additions and 1 deletions
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2
libavutil/imgutils.c
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@ -118,7 +118,7 @@ int av_image_fill_pointers(uint8_t *data[4], enum PixelFormat pix_fmt, int heigh
has_plane[desc->comp[i].plane] = 1; has_plane[desc->comp[i].plane] = 1;
total_size = size[0]; total_size = size[0];
for (i = 1; has_plane[i] && i < 4; i++) { for (i = 1; i < 4 && has_plane[i]; i++) {
int h, s = (i == 1 || i == 2) ? desc->log2_chroma_h : 0; int h, s = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;
data[i] = data[i-1] + size[i-1]; data[i] = data[i-1] + size[i-1];
h = (height + (1 << s) - 1) >> s; h = (height + (1 << s) - 1) >> s;