我有这个使用Android MediaRecorder记录音频文件的Android应用程序（compileSdkVersion 23，minSdkVersion 16，targetSdkVersion 23）。
这是我开始录制的方式
mMediaRecorder = new MediaRecorder();
mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
mMediaRecorder.setAudioChannels(2);
mMediaRecorder.setMaxDuration(mMaxRecordLength);
mMediaRecorder.setAudioSamplingRate(44100);
mMediaRecorder.setAudioEncodingBitRate(96000);
mMediaRecorder.setOutputFile(mFileName);
mMediaRecorder.prepare();
mMediaRecorder.start();
以及我停止录制的方式
mMediaRecorder.stop();
mMediaRecorder.reset();
mMediaRecorder.release();
问题：
当录制的音频超过1分50秒时，文件的标题似乎会遗漏一些有关文件内容的信息;我需要在播放器上播放这些文件，该播放器检查文件内的信息（不仅是文件扩展名），这样，当持续时间大于1时，它无法识别我录制的文件：50分钟。
我记录了许多长度的文件，以了解发生了什么，最后我用十六进制编辑器打开文件，这就是我发现的：
文件长度1:50分钟或少[好文件]：
....ftypmp42....isommp42..T.moov...lm
vhd..................................
..................................@..
................................ymeta
...!hdlr........mdta................+
keys............mdtacom.android.versi
on...%ilst............data........6.0
.1..S.trak...\tkhd...................
.....................................
................@.............Scmdia.
.. mdhd...............D.Jk........,hd
lr........soun............SoundHandle
...S.minf....smhd...........$dinf....
dref............url ......R.stbl...[s
tsd...........Kmp4a..................
.......D.....'esds...........@......w
...w............stts.................
.....................................
.....................................
.....................................
.....................................
.....................................
.....................................
[CUT of so many dots and not much more]
.....................................
.....................................
.....................................
......V...#........stsc..............
..........stco..........T....'free...
..............................A.mdat.
@"....------------------------------
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W.......kY..,v6`....EH_p...d..X..w.p.
[and so on]
文件长度1:51分钟或更多[坏文件]：
....ftypmp42....isommp42..T.free.....
.....................................
.....................................
.....................................
.....................................
.....................................
.....................................
.....................................
.....................................
.....................................
.....................................
.....................................
.....................................
.....................................
.....................................
.....................................
.....................................
.....................................
.....................................
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[CUT of so many dots and nothing else]
.....................................
.....................................
..............................kumdat.
@"....------------------------------
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.....5.P.kC..yzx^...9.<.z...D]TS..4Z.
[and so on]
正如你在BAD FILE中看到的那样，在第一行之后有一堆点在GOOD FILE中有信息。
你能解释一下我发生了什么，我该怎么做才能解决我的问题？