Python VLC MediaPlayer – 获取音频延迟

在本文中，我们将了解如何在Python vlc 模块中获取 MediaPlayer 对象的音频延迟。 VLC媒体播放器是VideoLAN项目开发的一款免费开源的便携式跨平台媒体播放软件和流媒体服务器。 MediPlyer 对象是 vlc 模块中用于播放视频的基本对象。音频通道或音轨是存储设备或调音台中的音频信号通信通道，用于多轨录音和扩声等操作。音频延迟意味着音频将在比正常时间延迟时间之后播放。可以借助audio_set_delay方法进行设置。

In order to do this we will use audio_get_delay method with the MediaPlayer object

Syntax : media_player.audio_get_delay()

Argument : It takes no argument

Return : It returns integer

下面是实现

# importing vlc module
import vlc
  
# importing time module
import time
  
  
# creating vlc media player object
media_player = vlc.MediaPlayer()
  
# media object
media = vlc.Media("death_note.mkv")
  
# setting media to the media player
media_player.set_media(media)
  
# setting video scale
media_player.video_set_scale(0.6)
  
  
  
# setting volume
media_player.audio_set_volume(80)
  
# start playing video
media_player.play()
  
# wait so the video can be played for 5 seconds
# irrespective for length of video
time.sleep(5)
  
# getting audio delay
value = media_player.audio_get_delay()
  
# printing value
print("Audio delay : ")
print(value)

输出 ：

Audio delay : 
0

另一个例子
下面是实现

# importing vlc module
import vlc
  
# importing time module
import time
  
# creating vlc media player object
media_player = vlc.MediaPlayer()
  
# media object
media = vlc.Media("1mp4.mkv")
  
# setting media to the media player
media_player.set_media(media)
  
  
# setting volume
media_player.audio_set_volume(70)
  
  
# setting video scale
media_player.video_set_scale(0.6)
  
  
# start playing video
media_player.play()
  
# wait so the video can be played for 5 seconds
# irrespective for length of video
time.sleep(5)
  
# getting audio delay
value = media_player.audio_get_delay()
  
# printing value
print("Audio delay : ")
print(value)

输出 ：

Audio delay : 
0