backport from dev the ability to seek to a percentage of currently playing video

actions.py

@@ -194,6 +194,10 @@ class Actions(object):
     def seek_back_on_player(self):
         self.video_driver.current_player.seek(-(self.data.settings['sampler']['SEEK_TIME']['value']))
 
+    def seek_to_location_on_player(self, position):
+        print("seek_to_location_on_player passed %s" % position)
+        self.video_driver.current_player.seek_percent(position)
+
     def toggle_function(self):
         self.data.function_on = not self.data.function_on
 

video_centre/alt_video_player.py

@@ -125,6 +125,12 @@ class AltVideoPlayer:
         else:
             self.message_handler.set_message('INFO', 'can not seek outside range')
 
+    def seek_percent(self, percent):
+        # convert % to absolute position in current clip
+        duration = self.end - self.start
+        pos = duration * percent
+        self.set_position(self.start + pos)
+
     def change_rate(self, amount):
         if self.rate is None:
             self.rate = 1

video_centre/video_player.py

@@ -156,6 +156,12 @@ class VideoPlayer:
         else:
             self.message_handler.set_message('INFO', 'can not seek outside range')
 
+    def seek_percent(self, percent):
+        # convert % to absolute position in current clip
+        duration = self.end - self.start
+        pos = duration * percent
+        self.set_position(self.start + pos)
+
     def change_rate(self, amount):
         new_rate = self.rate + amount
         if (new_rate > self.omx_player.minimum_rate() and new_rate < self.omx_player.maximum_rate()):