獲取mp3文件的採樣率

/** * 獲取mp3文件的採樣率 * @param filefullname 文件完整路徑 * @return 採樣率 */public int getMp3SampleRate(String filefullname) {    MediaExtractor mExtractor = new MediaExtractor();    try {        mExtractor.setDataSource(filefullname);    } catch (IOException e) {        e.printStackTrace();    }    MediaFormat format = mExtractor.getTrackFormat(0);    //獲取當前音頻的採樣率    mExtractor.selectTrack(0);    int mSampleRate = format.getInteger(MediaFormat.KEY_SAMPLE_RATE);    return mSampleRate;}