sub: mess with styling defaults, change --ass-use-margins behavior

Now --ass-use-margins doesn't apply to normal subtitles anymore. This is
probably the inverse from the mpv behavior users expected so far, and
thus a breaking change, so rename the option, that the user at least has
a chance to lookup the option and decide whether the new behavior is
wanted or not.

The basic idea here is:
- plain text subtitles should have a certain useful defalt behavior,
  like actually using margins
- ASS subtitles should never be broken by default
- ASS subtitles should look and behave like plaintext subtitles if
  the --ass-style-override=force option is used

This also subtly changes --sub-scale-with-window and adds the --ass-
scale-with-window option. Since this one isn't so important, don't
bother with compatibility.

1 files changed, 1 insertions, 1 deletions

diff --git a/sub/ass_mp.h b/sub/ass_mp.h
index 86c5c7ff0a..4e5cc88554 100644
--- a/sub/ass_mp.h
+++ b/sub/ass_mp.h
@@ -53,7 +53,7 @@ void mp_ass_add_default_styles(ASS_Track *track, struct MPOpts *opts);
 ASS_Track *mp_ass_default_track(ASS_Library *library, struct MPOpts *opts);
 
 struct MPOpts;
-void mp_ass_configure(ASS_Renderer *priv, struct MPOpts *opts,
+void mp_ass_configure(ASS_Renderer *priv, struct MPOpts *opts, bool is_ass,
                       struct mp_osd_res *dim);
 void mp_ass_configure_fonts(ASS_Renderer *priv, struct osd_style_opts *opts,
                             struct mpv_global *global, struct mp_log *log);