Python实现的视频播放器功能完整示例

2023-09-17 00:00:05 335

本文实例讲述了Python实现的视频播放器功能。分享给大家供大家参考，具体如下：

#-*-coding:utf-8-*-
#!python3
#----------------------------------------------------------------------------
#pyglet
#Copyright(c)2006-2008AlexHolkner
#Allrightsreserved.
#
#Redistributionanduseinsourceandbinaryforms,withorwithout
#modification,arepermittedprovidedthatthefollowingconditions
#aremet:
#
#*Redistributionsofsourcecodemustretaintheabovecopyright
#notice,thislistofconditionsandthefollowingdisclaimer.
#*Redistributionsinbinaryformmustreproducetheabovecopyright
#notice,thislistofconditionsandthefollowingdisclaimerin
#thedocumentationand/orothermaterialsprovidedwiththe
#distribution.
#*Neitherthenameofpygletnorthenamesofits
#contributorsmaybeusedtoendorseorpromoteproducts
#derivedfromthissoftwarewithoutspecificpriorwritten
#permission.
#
#THISSOFTWAREISPROVIDEDBYTHECOPYRIGHTHOLDERSANDCONTRIBUTORS
#"ASIS"ANDANYEXPRESSORIMPLIEDWARRANTIES,INCLUDING,BUTNOT
#LIMITEDTO,THEIMPLIEDWARRANTIESOFMERCHANTABILITYANDFITNESS
#FORAPARTICULARPURPOSEAREDISCLAIMED.INNOEVENTSHALLTHE
#COPYRIGHTOWNERORCONTRIBUTORSBELIABLEFORANYDIRECT,INDIRECT,
#INCIDENTAL,SPECIAL,EXEMPLARY,ORCONSEQUENTIALDAMAGES(INCLUDING,
#BUTNOTLIMITEDTO,PROCUREMENTOFSUBSTITUTEGOODSORSERVICES;
#LOSSOFUSE,DATA,ORPROFITS;ORBUSINESSINTERRUPTION)HOWEVER
#CAUSEDANDONANYTHEORYOFLIABILITY,WHETHERINCONTRACT,STRICT
#LIABILITY,ORTORT(INCLUDINGNEGLIGENCEOROTHERWISE)ARISINGIN
#ANYWAYOUTOFTHEUSEOFTHISSOFTWARE,EVENIFADVISEDOFTHE
#POSSIBILITYOFSUCHDAMAGE.
#----------------------------------------------------------------------------
'''AudioandvideoplayerwithsimpleGUIcontrols.
'''
__docformat__='restructuredtext'
__version__='$Id:$'
importsys
frompyglet.glimport*
importpyglet
frompyglet.windowimportkey
defdraw_rect(x,y,width,height):
glBegin(GL_LINE_LOOP)
glVertex2f(x,y)
glVertex2f(x+width,y)
glVertex2f(x+width,y+height)
glVertex2f(x,y+height)
glEnd()
classControl(pyglet.event.EventDispatcher):
x=y=0
width=height=10
def__init__(self,parent):
super(Control,self).__init__()
self.parent=parent
defhit_test(self,x,y):#点中控件
return(self.x1:
width*=video_format.sample_aspect
elifvideo_format.sample_aspect<1:
height/=video_format.sample_aspect
returnwidth,height
defset_default_video_size(self):
'''Makethewindowsizejustbigenoughtoshowthecurrent
videoandtheGUI.'''
width=self.GUI_WIDTH
height=self.GUI_HEIGHT
video_width,video_height=self.get_video_size()
width=max(width,video_width)
height+=video_height
self.set_size(int(width),int(height))
defon_resize(self,width,height):
'''Positionandsizevideoimage.'''
super(PlayerWindow,self).on_resize(width,height)
self.slider.width=width-self.GUI_PADDING*2
height-=self.GUI_HEIGHT
ifheight<=0:
return
video_width,video_height=self.get_video_size()
ifvideo_width==0orvideo_height==0:
return
display_aspect=width/float(height)
video_aspect=video_width/float(video_height)
ifvideo_aspect>display_aspect:
self.video_width=width
self.video_height=width/video_aspect
else:
self.video_height=height
self.video_width=height*video_aspect
self.video_x=(width-self.video_width)/2
self.video_y=(height-self.video_height)/2+self.GUI_HEIGHT
defon_mouse_press(self,x,y,button,modifiers):
forcontrolinself.controls:
ifcontrol.hit_test(x,y):
control.on_mouse_press(x,y,button,modifiers)
defon_key_press(self,symbol,modifiers):
ifsymbol==key.SPACE:
self.on_play_pause()
elifsymbol==key.ESCAPE:
self.dispatch_event('on_close')
defon_close(self):
self.player.pause()
self.close()
defon_play_pause(self):
ifself.player.playing:
self.player.pause()
else:
ifself.player.time>=self.player.source.duration:#如果放完了
self.player.seek(0)
self.player.play()
self.gui_update_state()
defon_draw(self):
self.clear()
#Video
ifself.player.sourceandself.player.source.video_format:
self.player.get_texture().blit(self.video_x,
self.video_y,
width=self.video_width,
height=self.video_height)
#GUI
self.slider.value=self.player.time
forcontrolinself.controls:
control.draw()
if__name__=='__main__':
iflen(sys.argv)<2:
print('Usage:media_player.py[...]')
sys.exit(1)
forfilenameinsys.argv[1:]:
player=pyglet.media.Player()
window=PlayerWindow(player)
source=pyglet.media.load(filename)
player.queue(source)
window.gui_update_source()
window.set_default_video_size()
window.set_size(400,400)
window.set_visible(True)
window.gui_update_state()
player.play()
pyglet.app.run()

注：这里用到的pyglet库，可点击此处下载https://www.lfd.uci.edu/~gohlke/pythonlibs/#pyglet

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Python实现的视频播放器功能完整示例

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