diff --git a/source-dvd.py b/source-dvd.py
index fcc243f..eb2bf53 100644
--- a/source-dvd.py
+++ b/source-dvd.py
@@ -6,10 +6,12 @@ import random
 direction_x = random.choice([-1, 1])
 direction_y = random.choice([-1, 1])
 
+video = obs.obs_video_info()
+obs.obs_get_video_info(video)
+print(video.base_height, video.base_width)
 # Initialize global position
-position_x = 1920/2
-position_y = 1080/2
-
+position_x = video.base_width/2
+position_y = video.base_height/2
 # Global variables holding the values of data settings / properties
 source_name = "Spaceship"  # Name of the source to bounce
 speed_x = 5.0  # Speed of movement in the X direction
@@ -43,7 +45,7 @@ def get_scene_item_from_source(source):
 
 # Function to update position
 def update_position():
-    global position_x, position_y, direction_x, direction_y
+    global position_x, position_y, direction_x, direction_y, video
 
     source = obs.obs_get_source_by_name(source_name)
     if source is None:
@@ -63,8 +65,8 @@ def update_position():
     width = (obs.obs_source_get_width(source) - source_crop.left - source_crop.right) * source_transform.scale.x 
     height = (obs.obs_source_get_height(source) - source_crop.top - source_crop.bottom) * source_transform.scale.y 
     #print(width, height)
-    canvas_width = 1920
-    canvas_height = 1080
+    canvas_width = video.base_width
+    canvas_height = video.base_height
     #print(width, height, canvas_width, canvas_height)
     # Calculate new position
     position_x += direction_x * speed_x