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indeo3: fix out of picture write.

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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-03-24 02:05:50 +01:00
parent 59a4b73531
commit ba775a54bc
1 changed files with 2 additions and 2 deletions
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4
libavcodec/indeo3.c
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@ -419,8 +419,8 @@ static int decode_cell_data(Cell *cell, uint8_t *block, uint8_t *ref_block,
blk_row_offset = (row_offset << (2 + v_zoom)) - (cell->width << 2);
line_offset = v_zoom ? row_offset : 0;
for (y = 0; y < cell->height; is_first_row = 0, y += 1 + v_zoom) {
for (x = 0; x < cell->width; x += 1 + h_zoom) {
for (y = 0; y + v_zoom < cell->height; is_first_row = 0, y += 1 + v_zoom) {
for (x = 0; x + h_zoom < cell->width; x += 1 + h_zoom) {
ref = ref_block;
dst = block;