sub: add --osd-blur and --sub-text-blur options

These require bleeding edge libass (latest git version), and will be
ignored otherwise.

I'm not sure about the blur factor and scaling. The ASS/VSFilter
semantics for blur scaling are a bad mess. Might require further
investigation.

1 files changed, 1 insertions, 0 deletions

diff --git a/sub/sub.c b/sub/sub.c
index b0c9e22d7a..e9496f7853 100644
--- a/sub/sub.c
+++ b/sub/sub.c
@@ -79,6 +79,7 @@ const struct m_sub_options osd_style_conf = {
         OPT_FLOATRANGE("spacing", spacing, 0, -10, 10),
         OPT_INTRANGE("margin-x", margin_x, 0, 0, 300),
         OPT_INTRANGE("margin-y", margin_y, 0, 0, 600),
+        OPT_FLOATRANGE("blur", blur, 0, 0, 20),
         {0}
     },
     .size = sizeof(struct osd_style_opts),