1 /* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.effectstest; 18 19 import android.app.Activity; 20 import android.content.Context; 21 import android.content.Intent; 22 import android.os.Bundle; 23 import android.util.Log; 24 import android.view.KeyEvent; 25 import android.view.Menu; 26 import android.view.View.OnClickListener; 27 import android.view.View; 28 import android.view.ViewGroup; 29 import android.widget.Button; 30 import android.widget.TextView; 31 import android.widget.EditText; 32 import android.widget.SeekBar; 33 import android.widget.ToggleButton; 34 import android.widget.CompoundButton; 35 import android.widget.CompoundButton.OnCheckedChangeListener; 36 import java.nio.ByteOrder; 37 import java.nio.ByteBuffer; 38 import java.util.HashMap; 39 import java.util.Map; 40 41 42 import android.media.audiofx.Equalizer; 43 import android.media.audiofx.AudioEffect; 44 45 public class EqualizerTest extends Activity implements OnCheckedChangeListener { 46 47 private final static String TAG = "EqualizerTest"; 48 49 private static int NUM_BANDS = 5; 50 private static int NUM_PARAMS = NUM_BANDS + 1; 51 52 private EffectParameter[] mParameters = new EffectParameter[NUM_PARAMS]; 53 private Equalizer mEqualizer; 54 ToggleButton mOnOffButton; 55 ToggleButton mReleaseButton; 56 EditText mSessionText; 57 static int sSession = 0; 58 EffectListner mEffectListener = new EffectListner(); 59 private static HashMap<Integer, Equalizer> sInstances = new HashMap<Integer, Equalizer>(10); 60 String mSettings = ""; 61 62 public EqualizerTest() { 63 Log.d(TAG, "contructor"); 64 } 65 66 @Override 67 public void onCreate(Bundle icicle) { 68 super.onCreate(icicle); 69 70 SeekBar seekBar; 71 TextView textView; 72 73 setContentView(R.layout.equalizertest); 74 75 mSessionText = findViewById(R.id.sessionEdit); 76 mSessionText.setOnKeyListener(mSessionKeyListener); 77 78 mSessionText.setText(Integer.toString(sSession)); 79 80 mReleaseButton = (ToggleButton)findViewById(R.id.eqReleaseButton); 81 mOnOffButton = (ToggleButton)findViewById(R.id.equalizerOnOff); 82 83 getEffect(sSession); 84 85 if (mEqualizer != null) { 86 mReleaseButton.setOnCheckedChangeListener(this); 87 mOnOffButton.setOnCheckedChangeListener(this); 88 89 short[] bandLevelRange = mEqualizer.getBandLevelRange(); 90 int centerFreq; 91 int []freqRange; 92 93 // Band 1 level 94 centerFreq = mEqualizer.getCenterFreq((short)0); 95 freqRange = mEqualizer.getBandFreqRange((short)0); 96 displayFreq(R.id.eqParam1Center, centerFreq); 97 displayFreq(R.id.eqParam1Min, freqRange[0]); 98 displayFreq(R.id.eqParam1Max, freqRange[1]); 99 seekBar = (SeekBar)findViewById(R.id.eqParam1SeekBar); 100 textView = (TextView)findViewById(R.id.eqParam1Value); 101 mParameters[0] = new BandLevelParam(mEqualizer, 0, bandLevelRange[0], bandLevelRange[1], seekBar, textView); 102 seekBar.setOnSeekBarChangeListener(mParameters[0]); 103 104 // Band 2 level 105 centerFreq = mEqualizer.getCenterFreq((short)1); 106 freqRange = mEqualizer.getBandFreqRange((short)1); 107 displayFreq(R.id.eqParam2Center, centerFreq); 108 displayFreq(R.id.eqParam2Min, freqRange[0]); 109 displayFreq(R.id.eqParam2Max, freqRange[1]); 110 seekBar = (SeekBar)findViewById(R.id.eqParam2SeekBar); 111 textView = (TextView)findViewById(R.id.eqParam2Value); 112 mParameters[1] = new BandLevelParam(mEqualizer, 1, bandLevelRange[0], bandLevelRange[1], seekBar, textView); 113 seekBar.setOnSeekBarChangeListener(mParameters[1]); 114 115 // Band 3 level 116 centerFreq = mEqualizer.getCenterFreq((short)2); 117 freqRange = mEqualizer.getBandFreqRange((short)2); 118 displayFreq(R.id.eqParam3Center, centerFreq); 119 displayFreq(R.id.eqParam3Min, freqRange[0]); 120 displayFreq(R.id.eqParam3Max, freqRange[1]); 121 seekBar = (SeekBar)findViewById(R.id.eqParam3SeekBar); 122 textView = (TextView)findViewById(R.id.eqParam3Value); 123 mParameters[2] = new BandLevelParam(mEqualizer, 2, bandLevelRange[0], bandLevelRange[1], seekBar, textView); 124 seekBar.setOnSeekBarChangeListener(mParameters[2]); 125 126 // Band 4 level 127 centerFreq = mEqualizer.getCenterFreq((short)3); 128 freqRange = mEqualizer.getBandFreqRange((short)3); 129 displayFreq(R.id.eqParam4Center, centerFreq); 130 displayFreq(R.id.eqParam4Min, freqRange[0]); 131 displayFreq(R.id.eqParam4Max, freqRange[1]); 132 seekBar = (SeekBar)findViewById(R.id.eqParam4SeekBar); 133 textView = (TextView)findViewById(R.id.eqParam4Value); 134 mParameters[3] = new BandLevelParam(mEqualizer, 3, bandLevelRange[0], bandLevelRange[1], seekBar, textView); 135 seekBar.setOnSeekBarChangeListener(mParameters[3]); 136 137 // Band 5 level 138 centerFreq = mEqualizer.getCenterFreq((short)4); 139 freqRange = mEqualizer.getBandFreqRange((short)4); 140 displayFreq(R.id.eqParam5Center, centerFreq); 141 displayFreq(R.id.eqParam5Min, freqRange[0]); 142 displayFreq(R.id.eqParam5Max, freqRange[1]); 143 seekBar = (SeekBar)findViewById(R.id.eqParam5SeekBar); 144 textView = (TextView)findViewById(R.id.eqParam5Value); 145 mParameters[4] = new BandLevelParam(mEqualizer, 4, bandLevelRange[0], bandLevelRange[1], seekBar, textView); 146 seekBar.setOnSeekBarChangeListener(mParameters[4]); 147 148 // Presets 149 short numPresets = mEqualizer.getNumberOfPresets(); 150 seekBar = (SeekBar)findViewById(R.id.eqParam6SeekBar); 151 textView = (TextView)findViewById(R.id.eqParam6Value); 152 mParameters[5] = new PresetParam(mEqualizer, (short)0, (short)(numPresets-1), seekBar, textView); 153 seekBar.setOnSeekBarChangeListener(mParameters[5]); 154 } 155 } 156 157 @Override 158 public void onResume() { 159 super.onResume(); 160 } 161 162 @Override 163 public void onPause() { 164 super.onPause(); 165 } 166 167 private View.OnKeyListener mSessionKeyListener 168 = new View.OnKeyListener() { 169 public boolean onKey(View v, int keyCode, KeyEvent event) { 170 if (event.getAction() == KeyEvent.ACTION_DOWN) { 171 switch (keyCode) { 172 case KeyEvent.KEYCODE_DPAD_CENTER: 173 case KeyEvent.KEYCODE_ENTER: 174 try { 175 sSession = Integer.parseInt(mSessionText.getText().toString()); 176 getEffect(sSession); 177 if (mEqualizer != null) { 178 for (int i = 0 ; i < mParameters.length; i++) { 179 mParameters[i].setEffect(mEqualizer); 180 mParameters[i].setEnabled(true); 181 } 182 } 183 } catch (NumberFormatException e) { 184 Log.d(TAG, "Invalid session #: "+mSessionText.getText().toString()); 185 } 186 187 return true; 188 } 189 } 190 return false; 191 } 192 }; 193 194 // OnCheckedChangeListener 195 public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { 196 if (buttonView.getId() == R.id.equalizerOnOff) { 197 if (mEqualizer != null) { 198 mEqualizer.setEnabled(isChecked); 199 updateBands(); 200 } 201 } 202 if (buttonView.getId() == R.id.eqReleaseButton) { 203 if (isChecked) { 204 if (mEqualizer == null) { 205 getEffect(sSession); 206 if (mEqualizer != null) { 207 for (int i = 0 ; i < mParameters.length; i++) { 208 mParameters[i].setEffect(mEqualizer); 209 mParameters[i].setEnabled(true); 210 } 211 } 212 } 213 } else { 214 if (mEqualizer != null) { 215 for (int i = 0 ; i < mParameters.length; i++) { 216 mParameters[i].setEnabled(false); 217 } 218 putEffect(sSession); 219 } 220 } 221 } 222 } 223 224 protected void updateBands() { 225 for (int i = 0 ; i < NUM_BANDS; i++) { 226 mParameters[i].updateDisplay(); 227 } 228 } 229 230 private void displayFreq(int viewId, int freq) { 231 TextView textView = (TextView)findViewById(viewId); 232 String text = Integer.toString(freq/1000)+" Hz"; 233 textView.setText(text); 234 } 235 236 private class EqualizerParam extends EffectParameter { 237 private Equalizer mEqualizer; 238 239 public EqualizerParam(Equalizer equalizer, int min, int max, SeekBar seekBar, TextView textView, String unit) { 240 super (min, max, seekBar, textView, unit); 241 242 mEqualizer = equalizer; 243 updateDisplay(); 244 } 245 246 @Override 247 public void setParameter(Integer value) { 248 } 249 250 @Override 251 public Integer getParameter() { 252 return new Integer(0); 253 } 254 255 @Override 256 public void setEffect(Object eq) { 257 mEqualizer = (Equalizer)eq; 258 } 259 } 260 261 private class BandLevelParam extends EqualizerParam { 262 private int mBand; 263 264 public BandLevelParam(Equalizer equalizer, int band, short min, short max, SeekBar seekBar, TextView textView) { 265 super (equalizer, min, max, seekBar, textView, "mB"); 266 267 mBand = band; 268 mEqualizer = equalizer; 269 updateDisplay(); 270 } 271 272 @Override 273 public void setParameter(Integer value) { 274 if (mEqualizer != null) { 275 mEqualizer.setBandLevel((short)mBand, value.shortValue()); 276 } 277 } 278 279 @Override 280 public Integer getParameter() { 281 if (mEqualizer != null) { 282 return new Integer(mEqualizer.getBandLevel((short)mBand)); 283 } 284 return new Integer(0); 285 } 286 } 287 288 private class PresetParam extends EqualizerParam { 289 290 public PresetParam(Equalizer equalizer, short min, short max, SeekBar seekBar, TextView textView) { 291 super (equalizer, min, max, seekBar, textView, ""); 292 293 mEqualizer = equalizer; 294 updateDisplay(); 295 } 296 297 @Override 298 public void setParameter(Integer value) { 299 if (mEqualizer != null) { 300 mEqualizer.usePreset(value.shortValue()); 301 } 302 } 303 304 @Override 305 public Integer getParameter() { 306 if (mEqualizer != null) { 307 return new Integer(mEqualizer.getCurrentPreset()); 308 } 309 return new Integer(0); 310 } 311 312 @Override 313 public void displayValue(int value, boolean fromTouch) { 314 String text = mEqualizer.getPresetName((short)value); 315 mValueText.setText(text); 316 if (!fromTouch) { 317 mSeekBar.setProgress(value - mMin); 318 } else { 319 updateBands(); 320 } 321 } 322 } 323 324 public class EffectListner implements AudioEffect.OnEnableStatusChangeListener, 325 AudioEffect.OnControlStatusChangeListener, 326 Equalizer.OnParameterChangeListener 327 { 328 public EffectListner() { 329 } 330 public void onEnableStatusChange(AudioEffect effect, boolean enabled) { 331 Log.d(TAG,"onEnableStatusChange: "+ enabled); 332 } 333 public void onControlStatusChange(AudioEffect effect, boolean controlGranted) { 334 Log.d(TAG,"onControlStatusChange: "+ controlGranted); 335 } 336 337 public void onParameterChange(Equalizer effect, int status, int param1, int param2, int value) { 338 Log.d(TAG,"onParameterChange EQ, status: "+status+" p1: "+param1+" p2: "+param2+" v: "+value); 339 } 340 341 private int byteArrayToInt(byte[] valueBuf, int offset) { 342 ByteBuffer converter = ByteBuffer.wrap(valueBuf); 343 converter.order(ByteOrder.nativeOrder()); 344 return converter.getInt(offset); 345 346 } 347 private short byteArrayToShort(byte[] valueBuf, int offset) { 348 ByteBuffer converter = ByteBuffer.wrap(valueBuf); 349 converter.order(ByteOrder.nativeOrder()); 350 return converter.getShort(offset); 351 352 } 353 } 354 355 private void getEffect(int session) { 356 synchronized (sInstances) { 357 if (sInstances.containsKey(session)) { 358 mEqualizer = sInstances.get(session); 359 } else { 360 try{ 361 mEqualizer = new Equalizer(0, session); 362 } catch (IllegalArgumentException e) { 363 Log.e(TAG,"Equalizer effect not supported"); 364 } catch (UnsupportedOperationException e) { 365 Log.e(TAG,"Equalizer library not loaded"); 366 } catch (IllegalStateException e) { 367 Log.e(TAG,"Equalizer cannot get presets"); 368 } catch (RuntimeException e) { 369 Log.e(TAG,"Equalizer effect not found"); 370 } 371 sInstances.put(session, mEqualizer); 372 } 373 } 374 mReleaseButton.setEnabled(false); 375 mOnOffButton.setEnabled(false); 376 if (mEqualizer != null) { 377 if (mSettings != "") { 378 Log.d(TAG,"Equalizer settings: "+mSettings); 379 mEqualizer.setProperties(new Equalizer.Settings(mSettings)); 380 } 381 382 mEqualizer.setEnableStatusListener(mEffectListener); 383 mEqualizer.setControlStatusListener(mEffectListener); 384 mEqualizer.setParameterListener(mEffectListener); 385 386 mReleaseButton.setChecked(true); 387 mReleaseButton.setEnabled(true); 388 389 mOnOffButton.setChecked(mEqualizer.getEnabled()); 390 mOnOffButton.setEnabled(true); 391 } 392 } 393 394 private void putEffect(int session) { 395 // mOnOffButton.setChecked(false); 396 mOnOffButton.setEnabled(false); 397 synchronized (sInstances) { 398 if (mEqualizer != null) { 399 mSettings = mEqualizer.getProperties().toString(); 400 mEqualizer.release(); 401 Log.d(TAG,"Equalizer released, settings: "+mSettings); 402 mEqualizer = null; 403 sInstances.remove(session); 404 } 405 } 406 } 407 } 408
