osd: fix possible misses of osd-dimensions property updates

check_obj_resize() in sub/osd.c calls mp_client_broadcast_event(), which
calls notify_property_events(). This is pretty unexpected, because
check_obj_resize() may be called from the VO thread. While that's sort
of awful, it seems to be OK locking-wise. But it breaks an assumption in
notify_property_events() that the core doesn't need to be woken up,
which could possibly lead to a missed/delayed property update (although
rather unlikely).

Fix this by explicitly waking up the core when it's called from the OSD
code.

1 files changed, 3 insertions, 0 deletions

diff --git a/player/client.h b/player/client.h
index 3408ff17f0..affefe8d71 100644
--- a/player/client.h
+++ b/player/client.h
@@ -39,6 +39,9 @@ struct mpv_global *mp_client_get_global(struct mpv_handle *ctx);
 struct MPContext *mp_client_get_core(struct mpv_handle *ctx);
 struct MPContext *mp_client_api_get_core(struct mp_client_api *api);
 
+void mp_client_broadcast_event_external(struct mp_client_api *api, int event,
+                                        void *data);
+
 // m_option.c
 void *node_get_alloc(struct mpv_node *node);