#42

main.py

@@ -857,7 +857,10 @@ class Broadcast:
 
 
 class Video (GameObject):
+    cap:        VideoCapture | None
+    current:    Surface | None
     fps:        int
+    path:       str
     pausing:    bool                = False
     sound:      Sound | None
     surfaces:   list[Surface]
@@ -868,11 +871,59 @@ class Video (GameObject):
             path:   str,
     ):
         super ().__init__ (game)
-        self.pausing = False
-        (self.surfaces, self.fps) = self._create_surfaces (path)
+        self.path = path
+        self.cap = None
+        self.current = None
         self.sound = self._create_sound (path)
         self.stop ()
 
+    def play (
+            self,
+    ) -> None:
+        self.enabled = True
+        self.cap = VideoCapture (self.path)
+        self.frame = 0
+        if self.sound:
+            self.sound.play ()
+
+    def stop (
+            self,
+    ) -> None:
+        self.enabled = False
+        self.frame = 0
+        if self.cap:
+            self.cap.release ()
+            self.cap = None
+
+    def redraw (
+            self,
+    ) -> None:
+        if (not self.enabled) or (self.cap is None):
+            return
+        ret, frame = self.cap.read ()
+        if not ret:
+            self.stop ()
+            return
+        surf = self._convert_to_surface (frame)
+        surf = pygame.transform.scale (surf, (self.width, self.height))
+        self.game.screen.blit (surf, (self.x, self.y))
+        super ().redraw ()
+
+    def update (
+            self,
+    ) -> None:
+        super ().update ()
+
+    def _convert_to_surface (
+            self,
+            frame:  np.ndarray,
+    ) -> Surface:
+        frame = cv2.cvtColor (frame, cv2.COLOR_BGR2RGB)
+        frame_surface = pygame.surfarray.make_surface (frame)
+        frame_surface = pygame.transform.rotate (frame_surface, -90)
+        frame_surface = pygame.transform.flip (frame_surface, True, False)
+        return frame_surface
+
     def _create_sound (
             self,
             path:   str,
@@ -887,96 +938,6 @@ class Video (GameObject):
         bytes_io.seek (0)
         return pygame.mixer.Sound (bytes_io)
 
-    def _create_surfaces (
-            self,
-            path:   str,
-    ) -> tuple[list[Surface], int]:
-        cap = self._load (path)
-        surfaces: list[Surface] = []
-        if cap is None:
-            return ([], FPS)
-        fps = int (cap.get (cv2.CAP_PROP_FPS))
-        while cap.isOpened ():
-            frame = self._read_frame (cap)
-            if frame is None:
-                break
-            surfaces.append (self._convert_to_surface (frame))
-        new_surfaces: list[Surface] = []
-        for i in range (len (surfaces) * FPS // fps):
-            new_surfaces.append (surfaces[i * fps // FPS])
-        return (new_surfaces, fps)
-
-    def _load (
-            self,
-            path:   str,
-    ) -> VideoCapture | None:
-        """
-        OpenCV で動画を読込む．
-        """
-        cap = VideoCapture (path)
-        if cap.isOpened ():
-            return cap
-        return None
-
-    def _read_frame (
-            self,
-            cap:    VideoCapture,
-    ) -> np.ndarray | None:
-        """
-        動画のフレームを読込む．
-        """
-        ret:    bool
-        frame:  np.ndarray
-        (ret, frame) = cap.read ()
-        if ret:
-            return frame
-        return None
-
-    def _convert_to_surface (
-            self,
-            frame:  np.ndarray,
-    ) -> Surface:
-        frame = cv2.cvtColor (frame, cv2.COLOR_BGR2RGB)
-        frame_surface = pygame.surfarray.make_surface (frame)
-        frame_surface = pygame.transform.rotate (frame_surface, -90)
-        frame_surface = pygame.transform.flip (frame_surface, True, False)
-        return frame_surface
-
-    def play (
-            self,
-    ) -> None:
-        self.enabled = True
-        self.pausing = False
-        if self.sound is not None:
-            self.sound.play ()
-
-    def stop (
-            self,
-    ) -> None:
-        self.enabled = False
-        self.frame = 0
-
-    def pause (
-            self,
-    ) -> None:
-        self.pausing = True
-
-    def redraw (
-            self,
-    ) -> None:
-        surface = pygame.transform.scale (self.surfaces[self.frame], (self.width, self.height))
-        self.game.screen.blit (surface, (self.x, self.y))
-        super ().redraw ()
-
-    def update (
-            self,
-    ) -> None:
-        if self.frame >= len (self.surfaces) - 1:
-            self.stop ()
-        if self.pausing:
-            self.frame -= 1
-        super ().update ()
-
 
 class NicoVideo (Video):
     def __init__ (