Java 类android.media.audiofx.Virtualizer 实例源码

public EqualizerHelper(int audioSessionId1, boolean equalizerEnabled) throws RuntimeException {

        mEqualizer = new Equalizer(0, audioSessionId1);
        mEqualizer.setEnabled(equalizerEnabled);

        mVirtualizer = new Virtualizer(0, audioSessionId1);
        mVirtualizer.setEnabled(equalizerEnabled);

        mBassBoost = new BassBoost(0, audioSessionId1);
        mBassBoost.setEnabled(equalizerEnabled);

        mPresetReverb = new PresetReverb(0, audioSessionId1);
        mPresetReverb.setEnabled(equalizerEnabled);
    }

public static void initVirtualizer(int audioID) {
    EndVirtual();
    try {
        virtualizer = new Virtualizer(0, audioID);
        short str = (short) Extras.getInstance().saveEq().getInt(VIRTUAL_BOOST, 0);
        if (str > 0) {
            setVirtualizerStrength(str);
        }else {
            setVirtualizerStrength((short) 0);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

private void release(AudioEffect effect) {
    if (null != effect) {
        effect.setControlStatusListener(null);
        effect.setEnableStatusListener(null);
        if (effect instanceof Equalizer) {
            ((Equalizer) effect).setParameterListener(null);
        } else if (effect instanceof BassBoost) {
            ((BassBoost) effect).setParameterListener(null);
        } else if (effect instanceof Virtualizer) {
            ((Virtualizer) effect).setParameterListener(null);
        }
        effect.release();
    }
}

private void release(AudioEffect effect) {
    if (null != effect) {
        effect.setControlStatusListener(null);
        effect.setEnableStatusListener(null);
        if (effect instanceof Equalizer) {
            ((Equalizer) effect).setParameterListener(null);
        } else if (effect instanceof BassBoost) {
            ((BassBoost) effect).setParameterListener(null);
        } else if (effect instanceof Virtualizer) {
            ((Virtualizer) effect).setParameterListener(null);
        }
        effect.release();
    }
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    Log.d(AppConstants.LOG_TAG, "onCreate");
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_hello_audioeffect);

    setUpViews();

    playSong();

    mBassBoost = new BassBoost(0, mMediaPlayer.getAudioSessionId());
    mBassBoost.setEnabled(true);

    mVirtualizer = new Virtualizer(0, mMediaPlayer.getAudioSessionId());
    mVirtualizer.setEnabled(true);

    mAudioManager = (AudioManager) getSystemService(AUDIO_SERVICE);
    mMaxVolume = mAudioManager
            .getStreamMaxVolume(AudioManager.STREAM_MUSIC);
    Log.d(AppConstants.LOG_TAG, "Max Volume: " + mMaxVolume);

    mVolumeBar.setMax(mMaxVolume);

    mLeftSeekBar.setMax(mMaxVolume);
    mRightSeekBar.setMax(mMaxVolume);

    updateCurrentVolume();

}

public Virtualizer getVirtualizer() {
    return mVirtualizer;
}

public void setVirtualizer(Virtualizer virtualizer) {
    mVirtualizer = virtualizer;
}

@TargetApi(Build.VERSION_CODES.KITKAT)
public musicHandler(musicPlayer Gh) {
    mEvent = new Event("PLayer");
    this.Gh = Gh;
    loadStartup();
    mediaplayer = new MediaPlayer();
    mediaplayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
        @Override
        public void onPrepared(MediaPlayer mp) {
            if(needPlay){
                isPrepared = true;
                play(needId);
            }else{
                isPrepared = true;
                if(needStop){
                    needStop = false;
                }else{
                    mediaplayer.start();
                }
                mediaplayer.setOnCompletionListener(OC);
                mEvent.trigger(playerEvents.SONG_CHANGED);
            }
        }
    });

    needStop = true;
    playByNumber(0);

    EQs = new EqlizerSettings(Gh.getBaseContext());

    bass = new BassBoost(0, mediaplayer.getAudioSessionId());
    bass.setEnabled(true);


    equlizer = new Equalizer(0, mediaplayer.getAudioSessionId());
    equlizer.setEnabled(true);

    virtualizer = new Virtualizer(0, mediaplayer.getAudioSessionId());
    virtualizer.setEnabled(true);

    if(android.os.Build.VERSION.SDK_INT >= 19){
        loudness = new LoudnessEnhancer(  mediaplayer.getAudioSessionId());
        loudness.setEnabled(true);
    }else{
        loudness = null;
    }


    setEQs(EQs.isOn);


    setBass(EQs.BASS);
    setTrable(EQs.TRABLE);
    setVoice(EQs.VOICE);
    setVirtualizer(EQs.VIRCHULIZER);
    setLoudnessEnhancer(EQs.LOUDNESS);
    mEvent.trigger(playerEvents.EQ_CHANGED);
    mEvent.trigger(playerEvents.PLAYER_COMPLETE);

}

public final View a(LayoutInflater paramLayoutInflater, ViewGroup paramViewGroup, Bundle paramBundle)
{
  View localView1 = super.a(paramLayoutInflater, paramViewGroup, paramBundle, efj.wI);
  this.d = new cqf(this, f());
  View localView2 = localView1.findViewById(aaw.mk);
  localView2.setOnClickListener(this);
  this.d.setAnchorView(localView2);
  this.d.setLayoutParams(new FrameLayout.LayoutParams(-1, -1));
  this.Z = ((VideoView)localView1.findViewById(aaw.ml));
  this.Z.setMediaController(this.d);
  this.Z.setOnPreparedListener(this);
  this.Z.setOnCompletionListener(this);
  this.Z.setOnErrorListener(this);
  v();
  if ((paramBundle != null) && (this.a != null))
  {
    this.Z.start();
    this.Z.suspend();
    this.ah = true;
  }
  a(localView1, aau.lN);
  int j;
  if (this.ad.getBooleanExtra("virtualize", false))
  {
    if (Build.VERSION.SDK_INT < 18) {
      break label259;
    }
    j = 1;
    if (j != 0)
    {
      int k = this.Z.getAudioSessionId();
      if (k != 0)
      {
        this.aj = new Virtualizer(0, k);
        this.aj.setEnabled(true);
      }
    }
  }
  if (Build.VERSION.SDK_INT >= 14) {}
  for (int i = 1;; i = 0)
  {
    if (i != 0) {
      localView1.setOnSystemUiVisibilityChangeListener(new cqe(this));
    }
    return localView1;
    label259:
    j = 0;
    break;
  }
}