options, subs: add --ass-vsfilter-aspect-compat

Add option --ass-vsfilter-aspect-compat and corresponding property
ass_vsfilter_aspect_compat. The setting controls whether to enable the
emulation of traditional VSFilter behavior where subtitles are
stretched if the video is anamorphic (previously always enabled for
native SSA/ASS subtitles). Enabled by default. Add 'V' as a new
default keybinding to toggle the property.

1 files changed, 1 insertions, 0 deletions

diff --git a/options.h b/options.h
index 3349d52edf..f6f28c0939 100644
--- a/options.h
+++ b/options.h
@@ -92,6 +92,7 @@ typedef struct MPOpts {
     char **sub_paths;
     int sub_auto;
     int ass_enabled;
+    int ass_vsfilter_aspect_compat;
     char **ass_force_style_list;
     struct lavc_param {
         int workaround_bugs;