android mediaEffect musicFx

app:

Music

MusicFX

添加到Music菜单中：

 if (getPackageManager().resolveActivity(i, 0) != null) {
                menu.add(0, EFFECTS_PANEL, 0, R.string.effectspanel).setIcon(R.drawable.ic_menu_eq);
            }

Music 菜单中启动 MusicFX：

 case EFFECTS_PANEL: {
                    Intent i = new Intent(AudioEffect.ACTION_DISPLAY_AUDIO_EFFECT_CONTROL_PANEL);
                    i.putExtra(AudioEffect.EXTRA_AUDIO_SESSION, mService.getAudioSessionId());
                    startActivityForResult(i, EFFECTS_PANEL);
                    return true;

framework:

aosp_4.4/frameworks/base/media/java/android/media/audiofx

jni:

aosp_4.4/frameworks/base/media/jni/audioeffect/android_media_AudioEffect.cpp

jni depend lib

aosp_4.4/frameworks/av/include/media/AudioEffect.h

aosp_4.4/frameworks/av/media/libmedia/AudioEffect.cpp