dvdnav: prevent reallocation of fake highlight buffer

Since subsizes were never updated, the bitmap buffer was always
reallocated whenever mp_nav_get_highlight() called.

1 files changed, 2 insertions, 0 deletions

diff --git a/player/dvdnav.c b/player/dvdnav.c
index 5b40f1256f..20b11af52c 100644
--- a/player/dvdnav.c
+++ b/player/dvdnav.c
@@ -247,6 +247,8 @@ void mp_nav_get_highlight(void *priv, struct mp_osd_res res,
         talloc_free(sub->bitmap);
         sub->bitmap = talloc_array(sub, uint32_t, sizes[0] * sizes[1]);
         memset(sub->bitmap, 0x80, talloc_get_size(sub->bitmap));
+        nav->subsize[0] = sizes[0];
+        nav->subsize[1] = sizes[1];
     }
 
     sub->x = nav->highlight[0];