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Fix division by zero in "\t" parsing. 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@23151 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
eugeni 2007-04-27 14:18:44 +00:00
parent 7b5e1f8939
commit 13156cd794
1 changed files with 6 additions and 3 deletions
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9
libass/ass_render.c
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@ -929,11 +929,14 @@ static char* parse_tag(char* p, double pwr) {
if (v3 < 0.)
v3 = 0.;
t = frame_context.time - render_context.event->Start; // FIXME: move to render_context
if (t < t1)
if (t <= t1)
k = 0.;
else if (t > t2)
else if (t >= t2)
k = 1.;
else k = pow(((double)(t - t1)) / delta_t, v3);
else {
assert(delta_t != 0.);
k = pow(((double)(t - t1)) / delta_t, v3);
}
while (*p == '\\')
p = parse_tag(p, k); // maybe k*pwr ? no, specs forbid nested \t's
skip_all(')'); // FIXME: better skip(')'), but much more tags support required