pyglet -- 视频播放器 （简单实现，效果不是太好，切换资源会卡死)（三）
实现一个简单的视频播放器，效果不是很好。这里不多说，直接贴代码了。
1 #-*- coding:gbk -*- 2 import pyglet 3 import os 4 from pyglet.gl import * 5 6 def draw_rec(x,y,width,height): 7 """ 8 矩形 9 """ 10 glLoadIdentity() 11 glPushMatrix() 12 glBegin(GL_LINE_LOOP) 13 glVertex2f(x,y) 14 glVertex2f(x+width,y) 15 glVertex2f(x+width,y+height) 16 glVertex2f(x,y+height) 17 glEnd() 18 glPopMatrix() 19 20 21 class Button(pyglet.event.EventDispatcher): 22 23 def __init__(self): 24 super(Button,self).__init__() 25 self.x=y=0 #按钮的位置以及大小 26 self.width=height=10 27 self.hit=False #按钮是否被鼠标点击 28 self._text=pyglet.text.Label('',anchor_x='center',anchor_y='center') #初始化是必要的,必须写在__init__中，不然给他赋文本值会当成全局量，最终显示的按钮的文本是最后一个赋值（即，作为私有量） 29 30 def draw(self): 31 """ 32 画按钮 33 """ 34 if self.hit: 35 glColor3f(0.0,1.0,0.0) 36 draw_rec(self.x,self.y,self.width,self.height) 37 glColor3f(1.0,1.0,1.0) 38 self.draw_label() 39 def set_text(self,button_text): 40 """ 41 改变按钮的文本 42 """ 43 self._text.text=button_text 44 button_text=property(lambda self: self._text.text,set_text) 45 def set_size(self,x,y,width,height): 46 """ 47 改变按钮的位置和大小 48 """ 49 self.x=x 50 self.y=y 51 self.width=width 52 self.height=height 53 54 def on_mouse_press(self,x,y,button,modifiers): 55 self.dispatch_event('on_press') #调度事件 56 self.hit=True #鼠标点击，颜色变化 57 def on_mouse_drag(self,x,y,dx,dy,button,modifiers): 58 """ 59 拖动 60 """ 61 self.dispatch_event('on_value_change') 62 def on_mouse_release(self,x,y,button,modifiers): 63 self.dispatch_event('on_release') 64 self.hit=False #释放鼠标，恢复颜色 65 def draw_label(self): 66 """ 67 添加标签 68 """ 69 self._text.x=self.x+self.width/2 70 self._text.y=self.y+self.height/2 71 self._text.draw() 72 def hit_test(self,x,y): 73 return (self.x<x<self.x+self.width and self.y < y < self.y+self.height) 74 75 76 77 #注册事件类型 78 Button.register_event_type('on_press') 79 Button.register_event_type('on_value_change') 80 Button.register_event_type('on_release') 81 82 83 class Player(pyglet.media.Player): 84 x=y=0 85 width=height=10 86 87 def load_source(self,path): 88 """ 89 载入视频资源 90 """ 91 resource_path=[path] 92 pyglet.resource.path=resource_path 93 pyglet.resource.reindex() 94 if path: 95 for root,dirname,files in os.walk(path): 96 for f in files: 97 source=pyglet.resource.media(f) 98 self.queue(source) 99 def set_locate(self,x,y): 100 """ 101 设置播放器的位置 102 """ 103 self.x=x 104 self.y=y 105 def get_and_set_video_size(self): 106 """ 107 获取视频的大小并设置播放器的长宽 108 """ 109 if self.source and self.source.video_format: 110 self.width=self.source.video_format.width 111 self.height=self.source.video_format.height 112 if self.source.video_format.sample_aspect>1: 113 self.width*=self.source.video_format.sample_aspect 114 else: 115 self.height/=self.source.video_format.sample_aspect 116 117 118 119 class MyPlayer(pyglet.window.Window): 120 def __init__(self,caption): 121 super(MyPlayer,self).__init__(caption=caption,resizable=True) 122 self.padding=10 #默认的间距以及长宽 123 self.width=50 124 self.height=30 125 126 #下面列出要显示的列表 127 self.drawable=[] #显示列表 128 129 #播放器 130 self.player=Player() 131 self.player.load_source('E:music') 132 self.player.set_locate(0,self.padding*2+30) #播放器显示位置 133 self.player.get_and_set_video_size() #得到视频的大小并设置 134 self.player.EOS_NEXT='next' #按顺序进行播放 135 self.player.push_handlers(self) 136 137 #播放/暂停控制按钮 138 self.play_pause_control=Button() 139 self.play_pause_control.width=50 140 self.play_pause_control.height=30 141 self.play_pause_control.set_size(self.padding,self.padding,self.play_pause_control.width,self.play_pause_control.height) #位置以及大小 142 self.play_pause_control.button_text='play' #文本设置 143 self.play_pause_control.on_press=lambda:self.on_play_pause() 144 self.drawable.append(self.play_pause_control) #将这个按钮加入到显示列表中 145 146 #全屏控制按钮 147 self.isscreenfull=Button() 148 self.isscreenfull.width=50 149 self.isscreenfull.height=30 150 self.isscreenfull.set_size(self.padding*2+self.play_pause_control.width,self.padding,self.isscreenfull.width,self.isscreenfull.height) 151 self.isscreenfull.button_text='全屏' 152 self.isscreenfull.on_press=lambda: self.set_fullscreen(True) 153 self.drawable.append(self.isscreenfull) 154 155 def on_draw(self): 156 self.clear() 157 #显示播放器 158 if self.player.source and self.player.source.video_format: 159 self.player.get_texture().blit((self.width-self.player.width)/2,self.player.y,width=self.player.width,height=self.player.height) #注意这里width=,height=不能省略，否则画面不会出现的 160 161 162 #画列表中所有的控制按钮 163 if self.drawable: 164 for draw_c in self.drawable: 165 draw_c.draw() 166 def on_mouse_press(self,x,y,button,modifiers): 167 for dc in self.drawable: 168 if dc.hit_test(x,y): 169 dc.on_mouse_press(x,y,button,modifiers) 170 def on_play_pause(self): 171 if self.player.playing: 172 self.player.pause() 173 self.play_pause_control.set_text('pause') 174 else: 175 if self.player.time > self.player.source.duration: 176 self.player.seek(0) 177 self.player.play() 178 self.play_pause_control.set_text('play') 179 def on_mouse_release(self,x,y,button,modifiers): 180 for dc in self.drawable: 181 if dc.hit_test(x,y): 182 dc.on_mouse_release(x,y,button,modifiers) 183 def on_resize(self,width,height): 184 super(MyPlayer,self).on_resize(width,height) 185 if self.player.source: 186 video_width,video_height=self.player.width,self.player.height 187 188 display_aspect=width/float(height) 189 video_aspect=video_width/float(video_height) 190 191 if video_aspect>display_aspect: 192 self.player.width=width 193 self.player.height=width/video_aspect 194 else: 195 self.player.height=height 196 self.player.width=height * video_aspect 197 self.player.x=(width-self.player.width)/2 198 self.player.y=(height-self.player.height)/2 199 200 if __name__ == "__main__": 201 wn=MyPlayer('my player') 202 wn.set_size(int(wn.player.width),int(wn.player.height)) #将窗口的大小设置的和视频一样大小 203 wn.set_visible(True) #可见 204 wn.player.play() 205 pyglet.app.run() 206