Show an explanatory message if the player is not performing very well (#1932).

[dcpomatic.git] / src / wx / film_viewer.cc

diff --git a/src/wx/film_viewer.cc b/src/wx/film_viewer.cc
index b9e9bd5331ae07c9b2959446a5a50a8ae9b69e4c..14737d0094626d3775c2a6b05a5bcd58b7cde67c 100644 (file)
--- a/src/wx/film_viewer.cc
+++ b/src/wx/film_viewer.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2012-2019 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
 
     This file is part of DCP-o-matic.
 
@@ -18,17 +18,20 @@
 
 */
 
+
 /** @file  src/film_viewer.cc
  *  @brief A wx widget to view a preview of a Film.
  */
 
-#include "film_viewer.h"
-#include "playhead_to_timecode_dialog.h"
-#include "playhead_to_frame_dialog.h"
-#include "wx_util.h"
+
 #include "closed_captions_dialog.h"
+#include "film_viewer.h"
 #include "gl_video_view.h"
+#include "nag_dialog.h"
+#include "playhead_to_frame_dialog.h"
+#include "playhead_to_timecode_dialog.h"
 #include "simple_video_view.h"
+#include "wx_util.h"
 #include "lib/film.h"
 #include "lib/ratio.h"
 #include "lib/util.h"
@@ -106,6 +109,7 @@ FilmViewer::FilmViewer (wxWindow* p)
        }
 
        _video_view->Sized.connect (boost::bind(&FilmViewer::video_view_sized, this));
+       _video_view->TooManyDropped.connect (boost::bind(&FilmViewer::too_many_frames_dropped, this));
 
        set_film (shared_ptr<Film> ());
 
@@ -730,3 +734,22 @@ FilmViewer::image_changed (shared_ptr<PlayerVideo> pv)
        emit (boost::bind(boost::ref(ImageChanged), pv));
 }
 
+
+void
+FilmViewer::too_many_frames_dropped ()
+{
+       if (!Config::instance()->nagged(Config::NAG_TOO_MANY_DROPPED_FRAMES)) {
+               stop ();
+       }
+
+       bool shown = NagDialog::maybe_nag (
+               panel(),
+               Config::NAG_TOO_MANY_DROPPED_FRAMES,
+               _("The player is dropping a lot of frames, so playback may not be accurate.\n\n"
+                 "<b>This does not necessarily mean that the DCP you are playing is defective!</b>\n\n"
+                 "You may be able to improve player performance by:\n"
+                 "• choosing 'decode at half resolution' or 'decode at quarter resolution' from the View menu\n"
+                 "• using a more powerful computer.\n"
+                )
+               );
+}