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avfilter/vsrc_testsrc: draw_bar: make sure width is not negative 

Reported-by: Josh de Kock
Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2016-12-15 15:52:48 +01:00
parent ab87df9a47
commit 745f4bcc2c
1 changed files with 2 additions and 2 deletions
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4
libavfilter/vsrc_testsrc.c
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@ -1309,8 +1309,8 @@ static void draw_bar(TestSourceContext *test, const uint8_t color[4],
x = FFMIN(x, test->w - 1);
y = FFMIN(y, test->h - 1);
w = FFMIN(w, test->w - x);
h = FFMIN(h, test->h - y);
w = FFMAX(FFMIN(w, test->w - x), 0);
h = FFMAX(FFMIN(h, test->h - y), 0);
av_assert0(x + w <= test->w);
av_assert0(y + h <= test->h);