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correct lag playback compensation

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This commit is contained in:
Federico Galatolo
2021-04-24 15:18:11 +02:00
parent 1827699319
commit 574cb9c2f6
1 changed files with 5 additions and 3 deletions
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8
manim_presentation/present.py
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@ -116,6 +116,8 @@ class Display:
self.state = State.PLAYING self.state = State.PLAYING
self.lastframe = None self.lastframe = None
self.current_presentation_i = 0 self.current_presentation_i = 0
self.lag = 0
self.last_time = now() self.last_time = now()
@property @property
@ -141,6 +143,8 @@ class Display:
self.handle_key() self.handle_key()
def show_video(self): def show_video(self):
self.lag = now() - self.last_time
self.last_time = now()
cv2.imshow("Video", self.lastframe) cv2.imshow("Video", self.lastframe)
def show_info(self): def show_info(self):
@ -186,9 +190,7 @@ class Display:
def handle_key(self): def handle_key(self):
sleep_time = math.ceil(1000/self.current_presentation.fps) sleep_time = math.ceil(1000/self.current_presentation.fps)
lag = now() - self.last_time key = cv2.waitKey(fix_time(sleep_time - self.lag)) & 0xFF
self.last_time = now()
key = cv2.waitKey(fix_time(sleep_time - lag)) & 0xFF
if key == Config.QUIT_KEY: if key == Config.QUIT_KEY:
self.quit() self.quit()