Question

几天前，我制作了一个在pygame窗口中播放视频的代码。代码工作正常，就像我最初的意图。但是，当我打印调试语句以查看其fps时，它大约在30fps左右。如果我要增加fps，我该怎么办？

这是我使用的代码。

import sys
from color import *

import pyglet
pygame.init()

running = True
gameDisplay= pygame.display.set_mode((800,600))

window = pyglet.window.Window(visible=False)
background_vid = pyglet.media.Player()

background_vid.queue(pyglet.media.load(".\\music_folder\\music_vid/servant_of_evil_converted.mp4"))
background_vid.play()

def hellow():
    print "hellow bloody world"

def on_draw():
    #We have to convert the Pyglet media player's image to a Pygame surface

    rawimage = background_vid.get_texture().get_image_data()

    print "rawimage "+str(rawimage)
    pixels = rawimage.get_data('RGBA', rawimage.width *8)


    video = pygame.image.frombuffer(pixels, (rawimage.width*2,rawimage.height), 'RGBA')

    #Blit the image to the screen
    gameDisplay.blit(video, (0, 0))



circle_x=300
while True:
    pyglet.clock.tick()
    on_draw()
    print "fps: "+str(pyglet.clock.get_fps())
    for event in pygame.event.get():
        if(event.type == pygame.QUIT):
            sys.exit()
            pygame.quit()

    pygame.draw.rect(gameDisplay, red, (circle_x, 300, 300, 300), 5)
    circle_x+=1
    pygame.display.update()

Answer 1

使用python，打印速度非常慢。尝试每隔一段时间打印一次。

示例:(需要import random）：

if random.random()>0.09:print "fps: "+str(pyglet.clock.get_fps())

Answer 2

所以@pydude所说的并非完全错误但是，为了实际消除FPS，我会在on_draw函数中放置一个自定义计数器，这样可以提高准确性。

此外，您的代码唯一真正的问题是您没有将vsync=False插入Window()装饰器。

我已经重新设计了你的代码，使其更加模块化，我还删除了潜在的瓶颈并添加了我自己的自定义FPS计数器（通过GL而不是控制台），在这里 - 有一个去看看是否它对你有用。

（注意：按 Escape 将退出应用程序）

import sys
from color import *

import pyglet
from pyglet.gl import *

from time import time # Used for FPS calc

key = pyglet.window.key

class main(pyglet.window.Window):
    def __init__ (self):
        super(main, self).__init__(800, 800, fullscreen = False, vsync = True)

        self.running = True

        self.background_vid = pyglet.media.Player()
        self.background_vid.queue(pyglet.media.load(".\\music_folder\\music_vid/servant_of_evil_converted.mp4"))
        self.background_vid.play()

        self.fps_counter = 0
        self.last_fps = time()
        self.fps_text = pyglet.text.Label(str(self.fps_counter), font_size=12, x=10, y=10)

    def on_key_press(self, symbol, modifiers):
        if symbol == key.ESCAPE: # [ESC]
            self.running = False

    def on_draw(self):
        self.render()
        #We have to convert the Pyglet media player's image to a Pygame surface


    def render(self):
        self.clear()

        rawimage = background_vid.get_texture().get_image_data()
        pixels = rawimage.get_data('RGBA', rawimage.width *8)
        video = pygame.image.frombuffer(pixels, (rawimage.width*2,rawimage.height), 'RGBA')

        #Blit the image to the screen
        self.blit(video, (0, 0))

        # And flip the GL buffer
        self.fps_counter += 1
        if time() - self.last_fps > 1:
            self.fps_text.text = str(self.fps_counter)
            self.fps_counter = 0
            self.last_fps = time()
        self.fps_text.draw()

        self.flip()

    def run(self):
        while self.running is True:
            self.render()

            # -----------> This is key <----------
            # This is what replaces pyglet.app.run()
            # but is required for the GUI to not freeze
            #
            event = self.dispatch_events()
            if event and event.type == pygame.QUIT:
                self.running = False

x = main()
x.run()

尝试将vsync = True切换为vsync = False并观察FPS计数器的差异。

如何在pygame中增加音乐视频的FPS速率？

2 个答案: