使用pygame播放h264视频
使用pygame播放h264视频
提问于 2017-11-07 23:58:42
我正在做的树莓派启用项目的图形用户界面使用pygame和HDMI液晶触摸屏。我可以用兼容的摄像头录制h264视频，但是我没有找到任何关于如何使用pygame播放h264视频的例子，有人能给我指出正确的方法吗？
回答 2
Stack Overflow用户
发布于 2018-07-31 01:05:48
Pygame目前不支持H.264视频播放。请尝试使用Pyglet。(注意:如果您没有安装AVBin，它只能播放.wav文件。)
Stack Overflow用户
发布于 2021-10-03 15:14:07
在Pygame中播放视频
PLay视频的完整示例
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)步骤1:导入cv2，NumPy
第2步:只复制“VideoPlayer”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3步:这就是制作视频播放器对象的方法
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)如果要调整视频的大小，请使用
如果' aspectRatio‘为True，则它将根据您传递的宽度来维护aspectRatio。默认情况下，它将为False
videoPlayer.activeFrameResizer(width, height, aspectRatio=True)页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/47162268
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