错误codeS媒体播放器的语法和定义 [英] Error Codes Media Player syntax and definition

问题描述

我找不到错误codeS的任何文件关于Android系统。我把在一起似乎是工作的一个较低级别的API设置，但不能在一个较高的应用程序。
尝试播放音频文件，就像我说的这一切在一个低版本的工作时，出现的错误。

I cannot find any documentation on error codes with regard to Android. I am putting together an app that seemed to be working on a lower level API setup but not on a higher one. The error occurs when trying to play an audio file and like I said it all worked in a lower version.

错误code我看到的是在日志中有：

The error code I see is in the log are:

的MediaPlayer方式/警告（1，32）结果，
  MediaPlayer的信息（1,32）结果
  MediaPlayer的信息/警告（1,26）结果
  MediaPlayer的信息（1,26）结果
  MediaPlayer的错误（351，-4）结果
  MediaPlayer的错误（351，-4）结果
  VideoView错误（351，-4）

MediaPlayer info/warning (1, 32)
MediaPlayer Info (1,32)
MediaPlayer info/warning (1,26)
MediaPlayer Info (1,26)
MediaPlayer error(351, -4)
MediaPlayer Error(351,-4)
VideoView Error(351,-4)

所以，可以有人请解释这是如何工作的详细？
我知道我在的MediaPlayer 和可能的误差 VideoView 按照上面的数据，但什么号码重新present？我想这是一个特别的错误，但哪一个呢？

So can someone please explain how this works in detail? I know I have an error in MediaPlayer and possibly VideoView as per the data above but what do the numbers represent? I assume it is a particular error but which one?

我似乎无法找到这样的东西，以及如何，这是去codeD。
我在哪里可以找到如何找出这意味着是最主要的问题文档。

I can not seem to find anything on this and how this is decoded. Where can I find documentation on how to find out what this means that is the main question.

如果我能得到这个特殊的错误code甚至更好的答案，但同样实际的文件源，所以我也许可以查找额外的codeS自己会也大有裨益。

If I can get an answer for this particular error code even better, but again the actual documentation source so I may be able to look up additional codes myself would be of great benefit also.

下面是详细的日志文件由Eclipse作为出口：

Here is the exact logfile as exported by Eclipse:

07-04 12:22:48.298: V/key =(6969): http://xxxxxx/glennharrold/audio/normal/relaxsleepwellfull.mp3
07-04 12:22:48.388: D/MediaPlayer(6969): Couldn't open file on client side, trying server side   
07-04 12:22:48.388: D/SprintMM(6969): Proxy will be bypassed because of WIFI connection.
07-04 12:22:48.508: W/MediaPlayer(6969): info/warning (1, 32)
07-04 12:22:48.508: I/MediaPlayer(6969): Info (1,32)
07-04 12:22:48.508: W/MediaPlayer(6969): info/warning (1, 26)
07-04 12:22:48.508: I/MediaPlayer(6969): Info (1,26)
07-04 12:22:48.508: E/MediaPlayer(6969): error (351, -4)
07-04 12:22:48.508: E/MediaPlayer(6969): Error (351,-4)
07-04 12:22:48.508: D/VideoView(6969): Error: 351,-4

现在什么还不清楚到底是什么意思，我可以看到，它可能有一些做与不被客户端上找到该文件，但此相同code工作在我复制工作$较低的API版本C $ C到这个应用程序，使一个新的。
我在看，我没有在我的Eclipse的logcat中唯一看到的是（6969）和 D / ， E / ， W / ， I / 在MediaPlayer的文字面前
不知道这是什么多余的东西意味着，当我的code导出到文本文件时，它才会出现。

Now what is unclear is exactly what means what I can see that it may have something to do with the file not being found on the client side but this exact same code works on a lower API version I copied working code to this App to make a new one. The only thing I see in this that I did not see in my logcat in Eclipse is the (6969) and the D/, E/, W/, I/ in front of MediaPlayer text don't know what this extra stuff means and it only appears when I export the code to a text file.

推荐答案

仅供参考，当logcat的显示信息，它是下列之一：

FYI, When logcat displays information it is one of the following:

• ð - D ebug


• W -​​ 是W arning


• I - 我载文信息

• D - D ebug
• W - W arning
• I - I nformation

由'/'用标识来识别，通常通过TAG在做的一个标准做法定义的Java code名称如下：

Followed by a '/' with a identifier to identify the Java code name which is usually defined by TAG as in a standard practice of doing :

public class fooClass{
    private static final String TAG = "fooClass";
    // ... SNIP
}

在此之后，是在DalvikVM运行Java code的进程ID，以根据程序规范一些信息的错误code /消息一起。

Following that, is the process id of the Java code that is running in the DalvikVM, along with some informative error code/message depending on the program spec.

例如，从Java类继续在 fooClass 如上强调，假设它有一个功能 fooMethod 像这样的：

For example, continuing on from the Java class fooClass as highlighted above, suppose it has a function fooMethod like this:

private void fooMethod(){    
    Log.d(TAG, "fooMethod() - This is a debug message");    
    //    
    Log.i(TAG, "fooMethod() - This is a info message");    
    //    
    Log.w(TAG, "fooMethod() - This is a warning message"); 
}

现在，将在日志像这样显示：

Now that will show up in the log like this:

07-04 20:58:00 D/fooClass (1234): fooMethod() - This is a debug message 
07-04 20:58:00 I/fooClass (1234): fooMethod() - This is a info message 
07-04 20:58:00 W/fooClass (1234): fooMethod() - This is a warning message

一些应用程序，将选出显示在程序员的自由裁量权的消息，或显示一个神秘的消息。

Some apps, will elect to display the message at the programmer's discretion or display a cryptic message.

值得注意的是Android框架本身，有些服务将显示有任何意义不大，除了开发商（S）的ROM本身背后意义的消息，在排除故障提供帮助。

Notably within the Android framework itself, some services will display a meaningless message that has little significance to anyone except the developer(s) behind the ROM itself, to aid in troubleshooting.

的 修改的由于OP上试图敲定理解这种坚持，在这里不用

Since the OP insisted on trying to nail down understanding this, here goes

在AOSP源$ C ​​$ c代表的MediaPlayer位于github上<一个href=\"https://github.com/android/platform_frameworks_base/blob/master/media/java/android/media/MediaPlayer.java\"相对=nofollow>这里，看看在那里有以'pvmf_return_ codes.h在源行号的引用 1547 ，其中，快速谷歌福导致这种<一个href=\"http://www.netmite.com/android/mydroid/external/opencore/pvmi/pvmf/include/pvmf_return_$c$cs.h\"相对=nofollow>林记。错误code和条件为不兼容或介质错误的结果。

The AOSP source code for the MediaPlayer lies on github here, look in there there's a reference to 'pvmf_return_codes.h' in the source on line number 1547, which, a quick google-fu lead to this linky. The error code and condition is as a result of incompatible or media error.

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