Python VLC MediaPlayer - 获取音轨说明

在本文中，我们将了解如何在Python vlc 模块中获取 MediaPlayer 对象的音轨描述。 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。我们可以借助MediaPlayer方法创建一个 MediaPlayer 对象。在某些视频中，有不同的音轨可用，以便用户可以在它们之间切换，例如，一个视频可以有不同的语言版本，因此它可能有多个音轨。

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

Syntax : media_player.audio_get_track_description()

Argument : It takes no argument

Return : It returns list

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 resource locator
mrl = "death_note.mkv"
  
# setting mrl to the media player
media_player.set_mrl(mrl)
  
# 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 Tracks description
value = media_player.audio_get_track_description()
  
# printing subtitle description
print("Audio Tracks Description")
print(value)

输出 ：

Audio Tracks Description
[(-1, b'Disable'), (1, b'English - [English]'), (2, b'English Commentary - [English]')]

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 resource locator
mrl = "1.mp4"
  
# setting mrl to the media player
media_player.set_mrl(mrl)
  
# 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 Tracks description
value = media_player.audio_get_track_description()
  
# printing subtitle description
print("Audio Tracks Description")
print(value)

输出 ：

Audio Tracks Description
[]