From 3bbd058c6d5c8b953fd80658ae696a16ff928896 Mon Sep 17 00:00:00 2001 From: Oleg Oshmyan Date: Sat, 23 May 2015 02:35:21 +0300 Subject: Apply fade only when the fade alpha is positive (like VSFilter) --- libass/ass_render.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'libass/ass_render.c') diff --git a/libass/ass_render.c b/libass/ass_render.c index 18ddea4..f471c81 100644 --- a/libass/ass_render.c +++ b/libass/ass_render.c @@ -1950,8 +1950,10 @@ static int parse_events(ASS_Renderer *render_priv, ASS_Event *event) info->font = render_priv->state.font; for (i = 0; i < 4; ++i) { uint32_t clr = render_priv->state.c[i]; - change_alpha(&clr, - mult_alpha(_a(clr), render_priv->state.fade), 1.); + // VSFilter compatibility: apply fade only when it's positive + if (render_priv->state.fade > 0) + change_alpha(&clr, + mult_alpha(_a(clr), render_priv->state.fade), 1.); info->c[i] = clr; } -- cgit v1.2.3