vo_wayand: save the flip time in the frame handler

This value is more accurate than the default value.

1 files changed, 10 insertions, 0 deletions

diff --git a/video/out/vo_wayland.c b/video/out/vo_wayland.c
index cde13bcded..92d7d56f68 100644
--- a/video/out/vo_wayland.c
+++ b/video/out/vo_wayland.c
@@ -42,6 +42,8 @@
 #include "common/msg.h"
 #include "input/input.h"
 
+#include "osdep/timer.h"
+
 #include "wayland_common.h"
 #include "wayland-version.h"
 
@@ -161,6 +163,8 @@ struct priv {
     // this id tells us if the subtitle part has changed or not
     int bitmap_pos_id[MAX_OSD_PARTS];
 
+    int64_t recent_flip_time; // last frame event
+
     // options
     int enable_alpha;
     int use_rgb565;
@@ -621,6 +625,7 @@ static void frame_handle_redraw(void *data,
 
         p->redraw_callback = NULL;
     }
+    p->recent_flip_time = mp_time_us();
 }
 
 static const struct wl_callback_listener frame_listener = {
@@ -907,6 +912,11 @@ static int control(struct vo *vo, uint32_t request, void *data)
         args->out_image = get_screenshot(p);
         return true;
     }
+    case VOCTRL_GET_RECENT_FLIP_TIME:
+    {
+        *(int64_t*) data = p->recent_flip_time;
+        return VO_TRUE;
+    }
     }
     int events = 0;
     int r = vo_wayland_control(vo, &events, request, data);