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lavfi/testsrc2: fix hang with very small sizes.

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Move a subtraction to the other side of the equal to avoid overflows.
This commit is contained in:
Nicolas George 2017-10-30 10:04:55 +01:00
parent 86c446ec61
commit a8305b0ea3
1 changed files with 2 additions and 2 deletions
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4
libavfilter/vsrc_testsrc.c
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@ -857,8 +857,8 @@ static void test2_fill_picture(AVFilterContext *ctx, AVFrame *frame)
uint8_t alpha[256];
r = s->pts;
for (y = ymin; y < ymax - 15; y += 16) {
for (x = xmin; x < xmax - 15; x += 16) {
for (y = ymin; y + 15 < ymax; y += 16) {
for (x = xmin; x + 15 < xmax; x += 16) {
if ((x ^ y) & 16)
continue;
for (i = 0; i < 256; i++) {