Question

MediaRecorder适用于其他版本的Android，但不适用于2.3.3：

try {

    MediaRecorder mRecorder = new MediaRecorder();
    mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
    mRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
    mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
    mRecorder.setOutputFile( path + "r_" + FileName );

    int version = android.os.Build.VERSION.SDK_INT;
    Log.d("MP3Downloader", "V: " + version );

    if( version >= 8 ) {
        mRecorder.setAudioEncodingBitRate(16);
        mRecorder.setAudioSamplingRate(44100);
        mRecorder.setAudioChannels(2);
    }

    mRecorder.prepare();
    mRecorder.start();
} catch (Exception e) {
    Log.e("MP3Downloader", "MediaRecorder Failed: " + e.getMessage() );
}

我在版本2.3.3上收到错误开始失败：-2147483648。我没有发现其他任何地方都有这个问题。

我也尝试过：

try {

    MediaRecorder mRecorder = new MediaRecorder();
    mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
    mRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
    mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);

    FileOutputStream fos = new FileOutputStream( "r_" + FileName);

    mRecorder.setOutputFile( fos.getFD() );



    int version = android.os.Build.VERSION.SDK_INT;
    Log.d("MP3Downloader", "V: " + version );

    if( version >= 8 ) {
        mRecorder.setAudioEncodingBitRate(16);
        mRecorder.setAudioSamplingRate(44100);
        mRecorder.setAudioChannels(1);
    }

    mRecorder.prepare();
    mRecorder.start();
} catch (Exception e) {
    Log.e("MP3Downloader", "MediaRecorder Failed: " + e.getMessage() );
}

但是，我得到例外：＆＃34;（只读文件系统）＆＃34;

我有权限：

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />

Answer 1

使用3gpp更改输出格式。

Android MediaRecorder - 2.3.3开始失败：-2147483648

1 个答案: