使用 pygame 播放 H264 视频

Question

我正在使用pygame和HDMI LCD触摸屏为支持树莓派的项目做GUI。我可以使用兼容的相机录制 h264 视频，但我没有找到任何关于如何使用 pygame 播放 h264 视频的示例，有人可以指出我正确的方式吗？

Answer 1

Pygame目前不支持H.264视频播放。请尝试改用Pyglet。（注意：如果不安装AVBin，它只能播放.wav文件。

Answer 2

在 Pygame 中播放视频

完整示例到视频

        import pygame
        import cv2
        import numpy
        pygame.init()
        
        width = 1280
        height = 720
        window = pygame.display.set_mode((width, height))
        
        
        class VideoPlayer:
            def __init__(self, surface, x, y, video, play_in_loop=False, mirror_effect=False):
                self.video = video
                self.surface = surface
                self.VideoReader = None
                self.FileOpened = False
                self.x = x
                self.y = y
                self.playInLoop = play_in_loop
                self.open()
                self.FrameResizer = False
                self.mirrorEffect = mirror_effect
        
            def maintainAspectRatio(self):
                video = cv2.VideoCapture(self.video)
                flag, frame = video.read()
                frame = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
                frame = numpy.rot90(frame)
                frame = pygame.surfarray.make_surface(frame)
                height = frame.get_height()
                width = frame.get_width()
                self.height = int((self.width * (height/width)))
                video.release()
        
            def activeMirrorEffact(self):
                self.mirrorEffect = True
        
            def deactiveMirrorEffact(self):
                self.mirrorEffect = False
        
            def activeFrameResizer(self, width=600, height=600, aspectRatio=False):
                self.FrameResizer = True
                self.width = width
                self.height = height
                if aspectRatio:
                    self.maintainAspectRatio()
        
            def deactiveFrameResizer(self):
                self.FrameResizer = False
        
            def open(self):
                try:
                    self.VideoReader = cv2.VideoCapture(self.video)
                    self.VideoReader.setExceptionMode(False)
                except:
                    self.FileOpend = False
                    return False
                self.FileOpend = True
        
            def close(self):
                self.VideoReader.release()
                self.FileOpend = False
        
            def show(self):
                if self.FileOpend:
                    flag, frame = self.VideoReader.read()
                    if flag:
                        if not self.mirrorEffect:
                            frame = cv2.flip(frame, 1)
        
                        if self.FrameResizer:
                            frame = cv2.resize(frame, (self.width, self.height), fx=0, fy=0, interpolation=cv2.INTER_CUBIC)
                        frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
                        frame = numpy.rot90(frame)
                        frame = pygame.surfarray.make_surface(frame)
                        self.surface.blit(frame, (self.x, self.y))
                    else:
                        self.close()
                        if self.playInLoop:
                            self.open()
        
        
        videoPlayer = VideoPlayer(window, 0, 0, "video.mp4", True)
        videoPlayer.activeFrameResizer(600, aspectRatio=True)
        
        run = True
        while run:
            for event in pygame.event.get():
                if event.type == pygame.QUIT:
                    run = False
        
            videoPlayer.show()
            pygame.display.update()
            pygame.time.Clock().tick(30)

第 1 步：导入 cv2、数字

步骤2：只需复制"视频播放器"类

        class VideoPlayer:
            def __init__(self, surface, x, y, video, play_in_loop=False, mirror_effect=False):
                self.video = video
                self.surface = surface
                self.VideoReader = None
                self.FileOpened = False
                self.x = x
                self.y = y
                self.playInLoop = play_in_loop
                self.open()
                self.FrameResizer = False
                self.mirrorEffect = mirror_effect
            def maintainAspectRatio(self):
                video = cv2.VideoCapture(self.video)
                flag, frame = video.read()
                frame = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
                frame = numpy.rot90(frame)
                frame = pygame.surfarray.make_surface(frame)
                height = frame.get_height()
                width = frame.get_width()
                self.height = int((self.width * (height/width)))
                video.release()
            def activeMirrorEffact(self):
                self.mirrorEffect = True
            def deactiveMirrorEffact(self):
                self.mirrorEffect = False
            def activeFrameResizer(self, width=600, height=600, aspectRatio=False):
                self.FrameResizer = True
                self.width = width
                self.height = height
                if aspectRatio:
                    self.maintainAspectRatio()
            def deactiveFrameResizer(self):
                self.FrameResizer = False
            def open(self):
                try:
                    self.VideoReader = cv2.VideoCapture(self.video)
                    self.VideoReader.setExceptionMode(False)
                except:
                    self.FileOpend = False
                    return False
                self.FileOpend = True
            def close(self):
                self.VideoReader.release()
                self.FileOpend = False
            def show(self):
                if self.FileOpend:
                    flag, frame = self.VideoReader.read()
                    if flag:
                        if not self.mirrorEffect:
                            frame = cv2.flip(frame, 1)
                        if self.FrameResizer:
                            frame = cv2.resize(frame, (self.width, self.height), fx=0, fy=0, interpolation=cv2.INTER_CUBIC)
                        frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
                        frame = numpy.rot90(frame)
                        frame = pygame.surfarray.make_surface(frame)
                        self.surface.blit(frame, (self.x, self.y))
                    else:
                        self.close()
                        if self.playInLoop:
                            self.open()

第三步：这就是制作视频播放器对象的方式

        videoPlayer = VideoPlayer(Surface, x_position, y_position, video_file, Pass True if You want to play in a loop, Pass True if you Want to enable mirror effect)

如果要调整视频
大小如果"纵横比"为真，那么它将根据您默认传递的宽度保持纵横比，它将为假

        videoPlayer.activeFrameResizer(width, height, aspectRatio=True)