import com.googlecode.mp4parser.boxes.mp4.objectdescriptors.AudioSpecificConfig; //导入依赖的package包/类
private AudioQuality getAacAudioQuality(Track track, AudioSampleEntry ase) {
    AudioQuality l = new AudioQuality();
    final ESDescriptorBox esDescriptorBox = ase.getBoxes(ESDescriptorBox.class).get(0);
    final AudioSpecificConfig audioSpecificConfig = esDescriptorBox.getEsDescriptor().getDecoderConfigDescriptor().getAudioSpecificInfo();
    if (audioSpecificConfig.getSbrPresentFlag() == 1) {
        l.fourCC = "AACH";
    } else if (audioSpecificConfig.getPsPresentFlag() == 1) {
        l.fourCC = "AACP"; //I'm not sure if that's what MS considers as AAC+ - because actually AAC+ and AAC-HE should be the same...
    } else {
        l.fourCC = "AACL";
    }
    l.bitrate = getBitrate(track);
    l.audioTag = 255;
    l.samplingRate = ase.getSampleRate();
    l.channels = ase.getChannelCount();
    l.bitPerSample = ase.getSampleSize();
    l.packetSize = 4;
    l.codecPrivateData = getAudioCodecPrivateData(audioSpecificConfig);
    //Index="0" Bitrate="103000" AudioTag="255" SamplingRate="44100" Channels="2" BitsPerSample="16" packetSize="4" CodecPrivateData=""
    return l;
}
 

import com.googlecode.mp4parser.boxes.mp4.objectdescriptors.AudioSpecificConfig; //导入依赖的package包/类
private String getAudioCodecPrivateData(AudioSpecificConfig audioSpecificConfig) {
    byte[] configByteArray = audioSpecificConfig.getConfigBytes();
    return Hex.encodeHex(configByteArray);
}