options: make mp_vo_opts options an actual sub-option group

Just a minor refactor along the planned option change. This commit will
make it easier to update (i.e. copy) the VO options without copying
_all_ options. For now, behavior should be equivalent, though.

(The VO options were put into a separate struct quite early - when all
global variables were removed from the source code. It wasn't clear
whether the separate struct would have any actual purpose, but it seems
it will now. Awesome, huh.)

1 files changed, 1 insertions, 1 deletions

diff --git a/options/options.h b/options/options.h
index 187abc2c1a..130ab4c1cf 100644
--- a/options/options.h
+++ b/options/options.h
@@ -98,7 +98,7 @@ typedef struct MPOpts {
     int gapless_audio;
     double audio_buffer;
 
-    mp_vo_opts vo;
+    mp_vo_opts *vo;
     int allow_win_drag;
 
     char *wintitle;