sub: fully update plaintext subtitle styles at runtime

Update options like --sub-text-margin-y at runtime. These are somewhat
of a problem, because ass_set_selective_style_override() (intentionally)
does not override them. This should be fixed in libass (by providing
additional override modes), but for now this will do.

Also change the signature of mp_ass_configure(), so we can get access to
the track.

Additionally, drop the redundant setting of the style Alignment (it's
overwritten by mp_ass_set_style()).

See #1622 (again).

1 files changed, 0 insertions, 1 deletions

diff --git a/sub/ass_mp.c b/sub/ass_mp.c
index 9ec86e9dd8..44ce330d0e 100644
--- a/sub/ass_mp.c
+++ b/sub/ass_mp.c
@@ -93,7 +93,6 @@ void mp_ass_add_default_styles(ASS_Track *track, struct MPOpts *opts)
         track->default_style = sid;
         ASS_Style *style = track->styles + sid;
         style->Name = strdup("Default");
-        style->Alignment = 2;
         mp_ass_set_style(style, track->PlayResY, opts->sub_text_style);
     }