获得MP3文件长度 [英] Getting mp3 file length

问题描述

我目前正在在C＃编写一个音频播放器。我使用的BASS库来处理播放音乐，但现在我有小问题，让歌曲的长度。

I am currently trying to write an Audio Player in C#. I am using BASS library to deal with playing music but now i have small problem with getting length of the song.

嗯，我已经阅读BASS doc和找到了一个方法：
全部我需要做的就是

Well i have read BASS doc and found a way: "All" i need to do is

int stream = Bass.BASS_StreamCreateFile(filepath,....);
int length = Bass.BASS_ChannelBytes2Seconds(stream, Bass.BASS_ChannelGetLength(stream));

和在大多数情况下，我得到的歌曲有效长度。这里的问题开始。据我所知流创建操作是相当昂贵（纠正我，如果我错了），并创建一个流只有拿到这首歌的长度看起来有点傻。

And in most of cases i get valid length of song. And here the problem starts. As far as i know the stream creation operation is quite expensive (correct me if i am mistaken) and creating a stream only to get length of the song looks a little silly.

所以我的问题是：是否有任何其他方式得到它，而无需创建蒸汽文件（不是如此昂贵）。我将在以后考虑阅读的ID3标签。正在创造流邪恶必须不管是什么做的，即使我会尝试用它会做同样的事情其他图书馆得到它？

So my question is: Is there any other way to get it without creating steam file (not being so expensive). I will be thinking later about reading id3 tags. Is creating that stream "evil that must be done no matter what" and even if i would try to get it with other library it would do exactly the same thing?

推荐答案

您可以使用的 Microsoft.WindowsAPICodePack.Shell ：

using Microsoft.WindowsAPICodePack.Shell;

然后，像这样的代码：

Then code like so:

string file = "myfile.mp3"
ShellFile so = ShellFile.FromFilePath(file);
double nanoseconds;
double.TryParse(so.Properties.System.Media.Duration.Value.ToString(), out nanoseconds);

有一个的代码项目，可以帮助你以及

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