Stopping video playback when opening a project, trying to simplify some edge cases (no need for continous playback during switching project files, lol)

Author: jonoomph

src/windows/main_window.py

@@ -486,6 +486,12 @@ def open_project(self, file_path, clear_thumbnails=True):
             # Ignore the request
             return
 
+        # Stop preview thread
+        self.SpeedSignal.emit(0)
+        ui_util.setup_icon(self, self.actionPlay, "actionPlay", "media-playback-start")
+        self.actionPlay.setChecked(False)
+        QCoreApplication.processEvents()
+
         # Do we have unsaved changes?
         if app.project.needs_save():
             ret = QMessageBox.question(self, _("Unsaved Changes"), _("Save changes to project first?"), QMessageBox.Cancel | QMessageBox.No | QMessageBox.Yes)

src/windows/video_widget.py

@@ -46,8 +46,6 @@ def changed(self, action):
         display_ratio_changed = False
         pixel_ratio_changed = False
         if action.key and action.key[0] in ["display_ratio", "pixel_ratio"] or action.type in ["load"]:
-            self.mutex.lock()
-
             # Update display ratio (if found)
             if action.type == "load" and action.values.get("display_ratio"):
                 display_ratio_changed = True
@@ -72,8 +70,6 @@ def changed(self, action):
             if display_ratio_changed or pixel_ratio_changed:
                 get_app().window.timeline_sync.timeline.SetMaxSize(round(self.width() * self.pixel_ratio.ToFloat()), round(self.height() * self.pixel_ratio.ToFloat()))
 
-            self.mutex.unlock()
-
     def paintEvent(self, event, *args):
         """ Custom paint event """
         self.mutex.lock()