Code example for EnvironmentalReverb

Methods: getProperties, release, setProperties

0
    public void test1_5Properties() throws Exception { 
        boolean result = false;
        String msg = "test1_5Properties()";
        getReverb(0); 
        try { 
            EnvironmentalReverb.Settings settings = mReverb.getProperties();
            short newRoomLevel = 0;
            if (settings.roomLevel == 0) {
                newRoomLevel = -1000;
            } 
            String str = settings.toString();
            settings = new EnvironmentalReverb.Settings(str);
            settings.roomLevel = newRoomLevel;
            mReverb.setProperties(settings);
            settings = mReverb.getProperties();
            assertTrue(msg +": setProperties failed",
                    (settings.roomLevel > (newRoomLevel - MILLIBEL_TOLERANCE)) &&
                    (settings.roomLevel < (newRoomLevel + MILLIBEL_TOLERANCE)));
            result = true;
        } catch (IllegalArgumentException e) {
            msg = msg.concat(": Bad parameter value");
            loge(msg, "Bad parameter value");
        } catch (UnsupportedOperationException e) {
            msg = msg.concat(": get parameter() rejected");
            loge(msg, "get parameter() rejected");
        } catch (IllegalStateException e) {
            msg = msg.concat("get parameter() called in wrong state");
            loge(msg, "get parameter() called in wrong state");
        } finally { 
            releaseReverb(); 
        } 
        assertTrue(msg, result);
    } 
 
    //----------------------------------------------------------------- 
    // 2 - Effect action 
    //---------------------------------- 
 
    //Test case 2.0: test actual auxiliary reverb influence on sound 
    @LargeTest 
    public void test2_0AuxiliarySoundModification() throws Exception { 
        boolean result = false;
        String msg = "test2_0AuxiliarySoundModification()";
        EnergyProbe probe = null;
        AudioEffect vc = null;
        MediaPlayer mp = null;
        AudioManager am = (AudioManager) getActivity().getSystemService(Context.AUDIO_SERVICE);
        int ringerMode = am.getRingerMode();
        am.setRingerMode(AudioManager.RINGER_MODE_NORMAL);
        int volume = am.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
        am.setStreamVolume(AudioManager.STREAM_MUSIC,
                           am.getStreamMaxVolume(AudioManager.STREAM_MUSIC),
                           0); 
        getReverb(0); 
        try { 
            probe = new EnergyProbe(0);
            // creating a volume controller on output mix ensures that ro.audio.silent mutes 
            // audio after the effects and not before 
            vc = new AudioEffect(
                                AudioEffect.EFFECT_TYPE_NULL, 
                                VOLUME_EFFECT_UUID,
                                0, 
                                0); 
            vc.setEnabled(true);
 
            mp = new MediaPlayer();
            mp.setDataSource(MediaNames.SINE_200_1000);
            mp.setAudioStreamType(AudioManager.STREAM_MUSIC);
            mp.attachAuxEffect(mReverb.getId());
            mp.setAuxEffectSendLevel(1.0f);
            mReverb.setRoomLevel((short)0);
            mReverb.setReverbLevel((short)0);
            mReverb.setDecayTime(2000);
            mReverb.setEnabled(true);
            mp.prepare();
            mp.start();
            Thread.sleep(1000);
            mp.stop();
            Thread.sleep(300);
            // measure energy around 1kHz after media player was stopped for 300 ms 
            int energy1000 = probe.capture(1000);
            assertTrue(msg + ": reverb has no effect", energy1000 > 0);
            result = true;
        } catch (IllegalArgumentException e) {
            msg = msg.concat(": Bad parameter value");
            loge(msg, "Bad parameter value");
        } catch (UnsupportedOperationException e) {
            msg = msg.concat(": get parameter() rejected");
            loge(msg, "get parameter() rejected");
        } catch (IllegalStateException e) {
            msg = msg.concat("get parameter() called in wrong state");
            loge(msg, "get parameter() called in wrong state");
        } catch (InterruptedException e) {
            loge(msg, "sleep() interrupted");
        } 
        finally { 
            releaseReverb(); 
            if (mp != null) {
                mp.release();
            } 
            if (vc != null) {
                vc.release();
            } 
            if (probe != null) {
                probe.release();
            } 
            am.setStreamVolume(AudioManager.STREAM_MUSIC, volume, 0);
            am.setRingerMode(ringerMode);
        } 
        assertTrue(msg, result);
    } 
 
    //Test case 2.1: test actual insert reverb influence on sound 
    @LargeTest 
    public void test2_1InsertSoundModification() throws Exception { 
        boolean result = false;
        String msg = "test2_1InsertSoundModification()";
        EnergyProbe probe = null;
        AudioEffect vc = null;
        MediaPlayer mp = null;
        AudioEffect rvb = null;
        AudioManager am = (AudioManager) getActivity().getSystemService(Context.AUDIO_SERVICE);
        int ringerMode = am.getRingerMode();
        am.setRingerMode(AudioManager.RINGER_MODE_NORMAL);
        int volume = am.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
        am.setStreamVolume(AudioManager.STREAM_MUSIC,
                           am.getStreamMaxVolume(AudioManager.STREAM_MUSIC),
                           0); 
        try { 
            // creating a volume controller on output mix ensures that ro.audio.silent mutes 
            // audio after the effects and not before 
            vc = new AudioEffect(
                                AudioEffect.EFFECT_TYPE_NULL, 
                                VOLUME_EFFECT_UUID,
                                0, 
                                0); 
            vc.setEnabled(true);
 
            mp = new MediaPlayer();
            mp.setDataSource(MediaNames.SINE_200_1000);
            mp.setAudioStreamType(AudioManager.STREAM_MUSIC);
 
            // create reverb with UUID instead of EnvironmentalReverb constructor otherwise an 
            // auxiliary reverb will be chosen by the effect framework as we are on session 0 
            rvb = new AudioEffect(
                        AudioEffect.EFFECT_TYPE_NULL, 
                        ENV_REVERB_EFFECT_UUID,
                        0, 
                        0); 
 
            rvb.setParameter(EnvironmentalReverb.PARAM_ROOM_LEVEL, (short)0);
            rvb.setParameter(EnvironmentalReverb.PARAM_REVERB_LEVEL, (short)0);
            rvb.setParameter(EnvironmentalReverb.PARAM_DECAY_TIME, 2000);
            rvb.setEnabled(true);
 
            // create probe after reverb so that it is chained behind the reverb in the 
            // effect chain 
            probe = new EnergyProbe(0);
 
            mp.prepare();
            mp.start();
            Thread.sleep(1000);
            mp.stop();
            Thread.sleep(300);
            // measure energy around 1kHz after media player was stopped for 300 ms 
            int energy1000 = probe.capture(1000);
            assertTrue(msg + ": reverb has no effect", energy1000 > 0);
            result = true;
        } catch (IllegalArgumentException e) {
            msg = msg.concat(": Bad parameter value");
            loge(msg, "Bad parameter value");
        } catch (UnsupportedOperationException e) {
            msg = msg.concat(": get parameter() rejected");
            loge(msg, "get parameter() rejected");
        } catch (IllegalStateException e) {
            msg = msg.concat("get parameter() called in wrong state");
            loge(msg, "get parameter() called in wrong state");
        } catch (InterruptedException e) {
            loge(msg, "sleep() interrupted");
        } 
        finally { 
            if (mp != null) {
                mp.release();
            } 
            if (vc != null) {
                vc.release();
            } 
            if (rvb != null) {
                rvb.release();
            } 
            if (probe != null) {
                probe.release();
            } 
            am.setStreamVolume(AudioManager.STREAM_MUSIC, volume, 0);
            am.setRingerMode(ringerMode);
        } 
        assertTrue(msg, result);
    } 
 
    //----------------------------------------------------------------- 
    // private methods 
    //---------------------------------- 
 
    private void getReverb(int session) {
         if (mReverb == null || session != mSession) {
             if (session != mSession && mReverb != null) {
                 mReverb.release();
                 mReverb = null;
             } 
             try { 
                mReverb = new EnvironmentalReverb(0, session);
                mSession = session;
            } catch (IllegalArgumentException e) {
                Log.e(TAG, "getReverb() EnvironmentalReverb not found exception: "+e);
            } catch (UnsupportedOperationException e) {
                Log.e(TAG, "getReverb() Effect library not loaded exception: "+e);
            } 
         } 
         assertNotNull("could not create mReverb", mReverb);
    } 
 
    private void releaseReverb() { 
        if (mReverb != null) {
            mReverb.release();
            mReverb = null;
        } 
   } 
 
}