diff options
Diffstat (limited to 'libass')
| -rw-r--r-- | libass/ass_render.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/libass/ass_render.c b/libass/ass_render.c index e499770bca..f69c0c9518 100644 --- a/libass/ass_render.c +++ b/libass/ass_render.c @@ -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 |