我使用一个MediaPlayer的一个TextureView从URL中发挥mp4视频。有没有什么办法可以编程检查,如果我玩的视频有声音?
I am using a TextureView with a MediaPlayer to play an mp4 video from a url. Is there any way I can programatically check if the video I am playing has sound?
编辑:我使用的是API 14,所以我没有访问MediaPlayer的方法getTrackInfo
I'm using API 14, so I don't have access to the MediaPlayer method getTrackInfo
非常感谢
在API级别16或更高版本中,的MediaPlayer
类有一个的 getTrackInfo
方法,该方法返回一个< A HREF =http://developer.android.com/reference/android/media/MediaPlayer.TrackInfo.html相对=nofollow> TrackInfo []
。然后,您可以调用 getTrackType
数组中的每个元素,看看你得到 MEDIA_TRACK_TYPE_AUDIO
。
In API level 16 or later, the MediaPlayer
class has a getTrackInfo
method that returns a TrackInfo[]
. You could then call getTrackType
for each element in the array and see if you get MEDIA_TRACK_TYPE_AUDIO
.