command: send additional property change events in-between loading

Opening the stream and opening the demuxer are both done asynchronously,
meaning the player reacts to client API requests. They also can
potentially take a while. Thus it's better to process outstanding
property changes, so that change events are sent for properties that
were changed during opening.

3 files changed, 3 insertions, 0 deletions

diff --git a/player/command.c b/player/command.c
index b3adb5f731..09bd118f7f 100644
--- a/player/command.c
+++ b/player/command.c
@@ -3452,6 +3452,7 @@ static const char *const *const mp_event_property_change[] = {
     E(MPV_EVENT_START_FILE, "*"),
     E(MPV_EVENT_END_FILE, "*"),
     E(MPV_EVENT_FILE_LOADED, "*"),
+    E(MP_EVENT_CHANGE_ALL, "*"),
     E(MPV_EVENT_TRACKS_CHANGED, "track-list"),
     E(MPV_EVENT_TRACK_SWITCHED, "vid", "video", "aid", "audio", "sid", "sub",
       "secondary-sid"),
diff --git a/player/command.h b/player/command.h
index d6891b66cd..30387946d3 100644
--- a/player/command.h
+++ b/player/command.h
@@ -43,6 +43,7 @@ enum {
     // Must start with the first unused positive value in enum mpv_event_id
     // MPV_EVENT_* and MP_EVENT_* must not overlap.
     INTERNAL_EVENT_BASE = 25,
+    MP_EVENT_CHANGE_ALL,
     MP_EVENT_CACHE_UPDATE,
     MP_EVENT_WIN_RESIZE,
     MP_EVENT_WIN_STATE,
diff --git a/player/loadfile.c b/player/loadfile.c
index 92018135e7..549aacc8de 100644
--- a/player/loadfile.c
+++ b/player/loadfile.c
@@ -1019,6 +1019,7 @@ static void play_current_file(struct MPContext *mpctx)
 
     stream_enable_cache(&mpctx->stream, &opts->stream_cache);
 
+    mp_notify(mpctx, MP_EVENT_CHANGE_ALL, NULL);
     mp_process_input(mpctx);
     if (mpctx->stop_play)
         goto terminate_playback;