diff --git a/pc.py b/pc.py
index 71f9e47..37c5cf0 100644
--- a/pc.py
+++ b/pc.py
@@ -38,7 +38,6 @@ cell_w, cell_h = w//m, h//m
 c = 1 # Color channels
 fps = 24
 kf = 1 # Keyframes (every kf-th source frame is a cell frame candidate)
-start, stop = 3275, 97701
 ts, ti = 1, 0 # Number of threads, current thread index
 
 cache = {}
@@ -69,9 +68,8 @@ def load_image(fn):
 def read_images():
     def save_data():
         np.save(data_fn, data)
-    src_fn = f'{src_dn}/{stop:08d}.jpg'
     if not os.path.exists(src_dn):
-        os.makedirs(src_dn, exist_ok=True)
+        os.makedirs(src_dn)
         os.system(f'ffmpeg -i "{video_fn}" -q:v 1 "{src_dn}/%08d.jpg"')
     cell_dn = f'{src_dn}_{cell_w}x{cell_h}'
     os.makedirs(cell_dn, exist_ok=True)