fix the flickering

app.py

@@ -20,9 +20,9 @@ def increase_fps(input_video_path, target_fps=60):
     # Расчет коэффициента интерполяции
     ratio = target_fps / input_fps
     output = cv2.VideoWriter(output_path, codec, target_fps, (width, height))
+
     ret, prev_frame = cap.read()
 
-    # Проверка первого кадра
     if not ret:
         cap.release()
         output.release()
@@ -30,32 +30,25 @@ def increase_fps(input_video_path, target_fps=60):
 
     prev_frame_gray = cv2.cvtColor(prev_frame, cv2.COLOR_BGR2GRAY)
 
-    for _ in range(frame_count - 1):
+    while True:
         ret, next_frame = cap.read()
         if not ret:
             break
 
-        # Преобразуем текущий кадр в черно-белый
         next_frame_gray = cv2.cvtColor(next_frame, cv2.COLOR_BGR2GRAY)
 
-        # Убедимся, что размеры кадров совпадают
-        if prev_frame_gray.shape != next_frame_gray.shape:
-            next_frame_gray = cv2.resize(next_frame_gray, (prev_frame_gray.shape[1], prev_frame_gray.shape[0]))
-
         # Оптический поток
-        flow = cv2.calcOpticalFlowFarneback(
-            prev_frame_gray, next_frame_gray, None, 0.5, 3, 15, 3, 5, 1.2, 0
-        )
+        flow = cv2.calcOpticalFlowFarneback(prev_frame_gray, next_frame_gray, None, 0.5, 3, 15, 3, 5, 1.2, 0)
 
         # Генерация промежуточных кадров
         for i in range(1, int(ratio)):
             alpha = i / ratio
-            intermediate_frame = cv2.addWeighted(prev_frame_gray, 1 - alpha, next_frame_gray, alpha, 0)
-            intermediate_bgr = cv2.cvtColor(intermediate_frame, cv2.COLOR_GRAY2BGR)
-            output.write(intermediate_bgr)
+            intermediate_frame = cv2.addWeighted(prev_frame, 1 - alpha, next_frame, alpha, 0)
+            output.write(intermediate_frame)
 
         output.write(next_frame)
         prev_frame_gray = next_frame_gray
+        prev_frame = next_frame
 
     cap.release()
     output.release()