1fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent/* 217cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent * Copyright (C) 2010 The Android Open Source Project 3fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * 4fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * Licensed under the Apache License, Version 2.0 (the "License"); 5fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * you may not use this file except in compliance with the License. 6fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * You may obtain a copy of the License at 7fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * 8fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * http://www.apache.org/licenses/LICENSE-2.0 9fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * 10fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * Unless required by applicable law or agreed to in writing, software 11fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * distributed under the License is distributed on an "AS IS" BASIS, 12fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * See the License for the specific language governing permissions and 14fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * limitations under the License. 15fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent */ 16fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 171a5149e5d7f2dddc8b324f7695e69fd89af73c52Eric Laurentpackage android.media.audiofx; 18fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 191a5149e5d7f2dddc8b324f7695e69fd89af73c52Eric Laurentimport android.media.audiofx.AudioEffect; 20ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurentimport java.util.StringTokenizer; 21fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 22fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 23fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent/** 24fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * A sound generated within a room travels in many directions. The listener first hears the 25fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * direct sound from the source itself. Later, he or she hears discrete echoes caused by sound 26fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * bouncing off nearby walls, the ceiling and the floor. As sound waves arrive after 27fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * undergoing more and more reflections, individual reflections become indistinguishable and 28fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * the listener hears continuous reverberation that decays over time. 29fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * Reverb is vital for modeling a listener's environment. It can be used in music applications 30fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * to simulate music being played back in various environments, or in games to immerse the 31fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * listener within the game's environment. 32fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * The PresetReverb class allows an application to configure the global reverb using a reverb preset. 33fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * This is primarily used for adding some reverb in a music playback context. Applications 34fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * requiring control over a more advanced environmental reverb are advised to use the 351a5149e5d7f2dddc8b324f7695e69fd89af73c52Eric Laurent * {@link android.media.audiofx.EnvironmentalReverb} class. 36fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * <p>An application creates a PresetReverb object to instantiate and control a reverb engine in the 37fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * audio framework. 38fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * <p>The methods, parameter types and units exposed by the PresetReverb implementation are 39fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * directly mapping those defined by the OpenSL ES 1.0.1 Specification 40fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * (http://www.khronos.org/opensles/) for the SLPresetReverbItf interface. 41fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * Please refer to this specification for more details. 42fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * <p>The PresetReverb is an output mix auxiliary effect and should be created on 43fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * Audio session 0. In order for a MediaPlayer or AudioTrack to be fed into this effect, 44fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * they must be explicitely attached to it and a send level must be specified. Use the effect ID 45fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * returned by getId() method to designate this particular effect when attaching it to the 46fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * MediaPlayer or AudioTrack. 471a5149e5d7f2dddc8b324f7695e69fd89af73c52Eric Laurent * <p>Creating a reverb on the output mix (audio session 0) requires permission 481a5149e5d7f2dddc8b324f7695e69fd89af73c52Eric Laurent * {@link android.Manifest.permission#MODIFY_AUDIO_SETTINGS} 491a5149e5d7f2dddc8b324f7695e69fd89af73c52Eric Laurent * <p>See {@link android.media.audiofx.AudioEffect} class for more details on controlling 501a5149e5d7f2dddc8b324f7695e69fd89af73c52Eric Laurent * audio effects. 51fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent */ 52fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 53fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurentpublic class PresetReverb extends AudioEffect { 54fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 55fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent private final static String TAG = "PresetReverb"; 56fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 57fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent // These constants must be synchronized with those in 58fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent // frameworks/base/include/media/EffectPresetReverbApi.h 59fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 60fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent /** 61fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * Preset. Parameter ID for 621a5149e5d7f2dddc8b324f7695e69fd89af73c52Eric Laurent * {@link android.media.audiofx.PresetReverb.OnParameterChangeListener} 63fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent */ 64fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent public static final int PARAM_PRESET = 0; 65fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 66fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent /** 6717cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent * No reverb or reflections 68fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent */ 6971450f813991bb76b477aaffd7cad28e8ae8af7cEric Laurent public static final short PRESET_NONE = 0; 7017cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent /** 7117cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent * Reverb preset representing a small room less than five meters in length 7217cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent */ 7371450f813991bb76b477aaffd7cad28e8ae8af7cEric Laurent public static final short PRESET_SMALLROOM = 1; 7417cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent /** 7517cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent * Reverb preset representing a medium room with a length of ten meters or less 7617cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent */ 7771450f813991bb76b477aaffd7cad28e8ae8af7cEric Laurent public static final short PRESET_MEDIUMROOM = 2; 7817cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent /** 7917cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent * Reverb preset representing a large-sized room suitable for live performances 8017cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent */ 8171450f813991bb76b477aaffd7cad28e8ae8af7cEric Laurent public static final short PRESET_LARGEROOM = 3; 8217cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent /** 8317cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent * Reverb preset representing a medium-sized hall 8417cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent */ 8571450f813991bb76b477aaffd7cad28e8ae8af7cEric Laurent public static final short PRESET_MEDIUMHALL = 4; 8617cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent /** 8717cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent * Reverb preset representing a large-sized hall suitable for a full orchestra 8817cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent */ 8971450f813991bb76b477aaffd7cad28e8ae8af7cEric Laurent public static final short PRESET_LARGEHALL = 5; 9017cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent /** 9117cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent * Reverb preset representing a synthesis of the traditional plate reverb 9217cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent */ 9371450f813991bb76b477aaffd7cad28e8ae8af7cEric Laurent public static final short PRESET_PLATE = 6; 94fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 95fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent /** 96fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * Registered listener for parameter changes. 97fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent */ 98fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent private OnParameterChangeListener mParamListener = null; 99fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 100fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent /** 101fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * Listener used internally to to receive raw parameter change event from AudioEffect super class 102fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent */ 103fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent private BaseParameterListener mBaseParamListener = null; 104fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 105fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent /** 106fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * Lock for access to mParamListener 107fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent */ 108fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent private final Object mParamListenerLock = new Object(); 109fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 110fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent /** 111fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * Class constructor. 112fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * @param priority the priority level requested by the application for controlling the 113fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * PresetReverb engine. As the same engine can be shared by several applications, this 114fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * parameter indicates how much the requesting application needs control of effect parameters. 115fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * The normal priority is 0, above normal is a positive number, below normal a negative number. 11617cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent * @param audioSession system wide unique audio session identifier. If audioSession 117fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * is not 0, the PresetReverb will be attached to the MediaPlayer or AudioTrack in the 118fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * same audio session. Otherwise, the PresetReverb will apply to the output mix. 119fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * As the PresetReverb is an auxiliary effect it is recommended to instantiate it on 120fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * audio session 0 and to attach it to the MediaPLayer auxiliary output. 121fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * 122fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * @throws java.lang.IllegalArgumentException 123fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * @throws java.lang.UnsupportedOperationException 124fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * @throws java.lang.RuntimeException 125fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent */ 126fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent public PresetReverb(int priority, int audioSession) 127fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent throws IllegalArgumentException, UnsupportedOperationException, RuntimeException { 128fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent super(EFFECT_TYPE_PRESET_REVERB, EFFECT_TYPE_NULL, priority, audioSession); 129fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent } 130fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 131fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent /** 132fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * Enables a preset on the reverb. 133fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * <p>The reverb PRESET_NONE disables any reverb from the current output but does not free the 134fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * resources associated with the reverb. For an application to signal to the implementation 135fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * to free the resources, it must call the release() method. 13617cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent * @param preset this must be one of the the preset constants defined in this class. 137fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * e.g. {@link #PRESET_SMALLROOM} 138fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * @throws IllegalStateException 139fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * @throws IllegalArgumentException 140fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * @throws UnsupportedOperationException 141fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent */ 142fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent public void setPreset(short preset) 143fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent throws IllegalStateException, IllegalArgumentException, UnsupportedOperationException { 144fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent checkStatus(setParameter(PARAM_PRESET, preset)); 145fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent } 146fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 147fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent /** 148fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * Gets current reverb preset. 14917cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent * @return the preset that is set at the moment. 150fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * @throws IllegalStateException 151fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * @throws IllegalArgumentException 152fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * @throws UnsupportedOperationException 153fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent */ 154fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent public short getPreset() 155fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent throws IllegalStateException, IllegalArgumentException, UnsupportedOperationException { 156fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent short[] value = new short[1]; 157ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent checkStatus(getParameter(PARAM_PRESET, value)); 158fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent return value[0]; 159fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent } 160fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 161fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent /** 162fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * The OnParameterChangeListener interface defines a method called by the PresetReverb 163fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * when a parameter value has changed. 164fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent */ 165fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent public interface OnParameterChangeListener { 166fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent /** 167fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * Method called when a parameter value has changed. The method is called only if the 168fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * parameter was changed by another application having the control of the same 169fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * PresetReverb engine. 170fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * @param effect the PresetReverb on which the interface is registered. 171fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * @param status status of the set parameter operation. 172fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * @param param ID of the modified parameter. See {@link #PARAM_PRESET} ... 173fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * @param value the new parameter value. 174fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent */ 175fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent void onParameterChange(PresetReverb effect, int status, int param, short value); 176fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent } 177fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 178fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent /** 179fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * Listener used internally to receive unformatted parameter change events from AudioEffect 180fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * super class. 181fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent */ 182fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent private class BaseParameterListener implements AudioEffect.OnParameterChangeListener { 183fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent private BaseParameterListener() { 184fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 185fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent } 186fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent public void onParameterChange(AudioEffect effect, int status, byte[] param, byte[] value) { 187fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent OnParameterChangeListener l = null; 188fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 189fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent synchronized (mParamListenerLock) { 190fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent if (mParamListener != null) { 191fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent l = mParamListener; 192fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent } 193fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent } 194fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent if (l != null) { 195fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent int p = -1; 196fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent short v = -1; 197fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 198fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent if (param.length == 4) { 199fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent p = byteArrayToInt(param, 0); 200fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent } 201fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent if (value.length == 2) { 202fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent v = byteArrayToShort(value, 0); 203fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent } 204fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent if (p != -1 && v != -1) { 205fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent l.onParameterChange(PresetReverb.this, status, p, v); 206fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent } 207fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent } 208fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent } 209fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent } 210fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent 211fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent /** 212fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * Registers an OnParameterChangeListener interface. 213fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent * @param listener OnParameterChangeListener interface registered 214fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent */ 215fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent public void setParameterListener(OnParameterChangeListener listener) { 216fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent synchronized (mParamListenerLock) { 217fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent if (mParamListener == null) { 218fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent mParamListener = listener; 219fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent mBaseParamListener = new BaseParameterListener(); 220fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent super.setParameterListener(mBaseParamListener); 221fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent } 222fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent } 223fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent } 224ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent 225ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent /** 226ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent * The Settings class regroups all preset reverb parameters. It is used in 227ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent * conjuntion with getProperties() and setProperties() methods to backup and restore 228ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent * all parameters in a single call. 229ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent */ 230ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent public static class Settings { 231ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent public short preset; 232ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent 233ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent public Settings() { 234ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent } 235ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent 236ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent /** 237ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent * Settings class constructor from a key=value; pairs formatted string. The string is 238ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent * typically returned by Settings.toString() method. 239ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent * @throws IllegalArgumentException if the string is not correctly formatted. 240ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent */ 241ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent public Settings(String settings) { 242ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent StringTokenizer st = new StringTokenizer(settings, "=;"); 243ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent int tokens = st.countTokens(); 244ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent if (st.countTokens() != 3) { 245ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent throw new IllegalArgumentException("settings: " + settings); 246ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent } 247ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent String key = st.nextToken(); 248ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent if (!key.equals("PresetReverb")) { 249ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent throw new IllegalArgumentException( 250ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent "invalid settings for PresetReverb: " + key); 251ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent } 252ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent try { 253ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent key = st.nextToken(); 254ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent if (!key.equals("preset")) { 255ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent throw new IllegalArgumentException("invalid key name: " + key); 256ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent } 257ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent preset = Short.parseShort(st.nextToken()); 258ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent } catch (NumberFormatException nfe) { 259ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent throw new IllegalArgumentException("invalid value for key: " + key); 260ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent } 261ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent } 262ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent 263ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent @Override 264ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent public String toString() { 265ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent String str = new String ( 266ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent "PresetReverb"+ 267ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent ";preset="+Short.toString(preset) 268ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent ); 269ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent return str; 270ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent } 271ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent }; 272ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent 273ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent 274ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent /** 275ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent * Gets the preset reverb properties. This method is useful when a snapshot of current 276ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent * preset reverb settings must be saved by the application. 277ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent * @return a PresetReverb.Settings object containing all current parameters values 278ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent * @throws IllegalStateException 279ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent * @throws IllegalArgumentException 280ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent * @throws UnsupportedOperationException 281ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent */ 282ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent public PresetReverb.Settings getProperties() 283ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent throws IllegalStateException, IllegalArgumentException, UnsupportedOperationException { 284ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent Settings settings = new Settings(); 285ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent short[] value = new short[1]; 286ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent checkStatus(getParameter(PARAM_PRESET, value)); 287ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent settings.preset = value[0]; 288ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent return settings; 289ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent } 290ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent 291ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent /** 292ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent * Sets the preset reverb properties. This method is useful when preset reverb settings have to 293ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent * be applied from a previous backup. 29417cb280e7f1ac3556eac90ab08263712e0348cb9Eric Laurent * @param settings a PresetReverb.Settings object containing the properties to apply 295ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent * @throws IllegalStateException 296ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent * @throws IllegalArgumentException 297ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent * @throws UnsupportedOperationException 298ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent */ 299ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent public void setProperties(PresetReverb.Settings settings) 300ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent throws IllegalStateException, IllegalArgumentException, UnsupportedOperationException { 301ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent checkStatus(setParameter(PARAM_PRESET, settings.preset)); 302ca57d1cc89d65dfbd59c749c5736574cd08c7bd3Eric Laurent } 303fd84f97af4b44d54bba53bb85b31a6dbce07f6e2Eric Laurent} 304