Python VLC MediaPlayer - 获取视频轨道描述

在本文中，我们将看到如何在Python vlc 模块中获取 MediaPlayer 对象的视频轨道描述。 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，有不同的视频轨道可供使用，以便用户可以在它们之间切换。

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

Syntax : media_player.video_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 video Tracks description
value = media_player.video_get_track_description()
  
# printing subtitle description
print("Video Track Description")
print(value)

输出 ：

Video Track Description
[(-1, b'Disable'), (0, b'Track 1')]]

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 video Tracks description
value = media_player.video_get_track_description()
  
# printing subtitle description
print("Video Track Description")
print(value)

输出 ：

Video Track Description
[(-1, b'Disable'), (0, b'Track 1')]