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.camera; 18 19 import android.annotation.TargetApi; 20 import android.app.Activity; 21 import android.content.Context; 22 import android.content.SharedPreferences; 23 import android.content.SharedPreferences.Editor; 24 import android.content.res.Resources; 25 import android.content.res.TypedArray; 26 import android.hardware.Camera.CameraInfo; 27 import android.hardware.Camera.Parameters; 28 import android.hardware.Camera.Size; 29 import android.media.CamcorderProfile; 30 import android.util.FloatMath; 31 import android.util.Log; 32 33 import com.android.gallery3d.common.ApiHelper; 34 35 import java.util.ArrayList; 36 import java.util.List; 37 import java.util.Locale; 38 39 /** 40 * Provides utilities and keys for Camera settings. 41 */ 42 public class CameraSettings { 43 private static final int NOT_FOUND = -1; 44 45 public static final String KEY_VERSION = "pref_version_key"; 46 public static final String KEY_LOCAL_VERSION = "pref_local_version_key"; 47 public static final String KEY_RECORD_LOCATION = "pref_camera_recordlocation_key"; 48 public static final String KEY_VIDEO_QUALITY = "pref_video_quality_key"; 49 public static final String KEY_VIDEO_TIME_LAPSE_FRAME_INTERVAL = "pref_video_time_lapse_frame_interval_key"; 50 public static final String KEY_PICTURE_SIZE = "pref_camera_picturesize_key"; 51 public static final String KEY_JPEG_QUALITY = "pref_camera_jpegquality_key"; 52 public static final String KEY_FOCUS_MODE = "pref_camera_focusmode_key"; 53 public static final String KEY_FLASH_MODE = "pref_camera_flashmode_key"; 54 public static final String KEY_VIDEOCAMERA_FLASH_MODE = "pref_camera_video_flashmode_key"; 55 public static final String KEY_WHITE_BALANCE = "pref_camera_whitebalance_key"; 56 public static final String KEY_SCENE_MODE = "pref_camera_scenemode_key"; 57 public static final String KEY_EXPOSURE = "pref_camera_exposure_key"; 58 public static final String KEY_TIMER = "pref_camera_timer_key"; 59 public static final String KEY_TIMER_SOUND_EFFECTS = "pref_camera_timer_sound_key"; 60 public static final String KEY_VIDEO_EFFECT = "pref_video_effect_key"; 61 public static final String KEY_CAMERA_ID = "pref_camera_id_key"; 62 public static final String KEY_CAMERA_HDR = "pref_camera_hdr_key"; 63 public static final String KEY_CAMERA_FIRST_USE_HINT_SHOWN = "pref_camera_first_use_hint_shown_key"; 64 public static final String KEY_VIDEO_FIRST_USE_HINT_SHOWN = "pref_video_first_use_hint_shown_key"; 65 66 public static final String EXPOSURE_DEFAULT_VALUE = "0"; 67 68 public static final int CURRENT_VERSION = 5; 69 public static final int CURRENT_LOCAL_VERSION = 2; 70 71 private static final String TAG = "CameraSettings"; 72 73 private final Context mContext; 74 private final Parameters mParameters; 75 private final CameraInfo[] mCameraInfo; 76 private final int mCameraId; 77 78 public CameraSettings(Activity activity, Parameters parameters, 79 int cameraId, CameraInfo[] cameraInfo) { 80 mContext = activity; 81 mParameters = parameters; 82 mCameraId = cameraId; 83 mCameraInfo = cameraInfo; 84 } 85 86 public PreferenceGroup getPreferenceGroup(int preferenceRes) { 87 PreferenceInflater inflater = new PreferenceInflater(mContext); 88 PreferenceGroup group = 89 (PreferenceGroup) inflater.inflate(preferenceRes); 90 if (mParameters != null) initPreference(group); 91 return group; 92 } 93 94 @TargetApi(ApiHelper.VERSION_CODES.HONEYCOMB) 95 public static String getDefaultVideoQuality(int cameraId, 96 String defaultQuality) { 97 if (ApiHelper.HAS_FINE_RESOLUTION_QUALITY_LEVELS) { 98 if (CamcorderProfile.hasProfile( 99 cameraId, Integer.valueOf(defaultQuality))) { 100 return defaultQuality; 101 } 102 } 103 return Integer.toString(CamcorderProfile.QUALITY_HIGH); 104 } 105 106 public static void initialCameraPictureSize( 107 Context context, Parameters parameters) { 108 // When launching the camera app first time, we will set the picture 109 // size to the first one in the list defined in "arrays.xml" and is also 110 // supported by the driver. 111 List<Size> supported = parameters.getSupportedPictureSizes(); 112 if (supported == null) return; 113 for (String candidate : context.getResources().getStringArray( 114 R.array.pref_camera_picturesize_entryvalues)) { 115 if (setCameraPictureSize(candidate, supported, parameters)) { 116 SharedPreferences.Editor editor = ComboPreferences 117 .get(context).edit(); 118 editor.putString(KEY_PICTURE_SIZE, candidate); 119 editor.apply(); 120 return; 121 } 122 } 123 Log.e(TAG, "No supported picture size found"); 124 } 125 126 public static void removePreferenceFromScreen( 127 PreferenceGroup group, String key) { 128 removePreference(group, key); 129 } 130 131 public static boolean setCameraPictureSize( 132 String candidate, List<Size> supported, Parameters parameters) { 133 int index = candidate.indexOf('x'); 134 if (index == NOT_FOUND) return false; 135 int width = Integer.parseInt(candidate.substring(0, index)); 136 int height = Integer.parseInt(candidate.substring(index + 1)); 137 for (Size size : supported) { 138 if (size.width == width && size.height == height) { 139 parameters.setPictureSize(width, height); 140 return true; 141 } 142 } 143 return false; 144 } 145 146 public static int getMaxVideoDuration(Context context) { 147 int duration = 0; // in milliseconds, 0 means unlimited. 148 try { 149 duration = context.getResources().getInteger(R.integer.max_video_recording_length); 150 } catch (Resources.NotFoundException ex) { 151 } 152 return duration; 153 } 154 155 private void initPreference(PreferenceGroup group) { 156 ListPreference videoQuality = group.findPreference(KEY_VIDEO_QUALITY); 157 ListPreference timeLapseInterval = group.findPreference(KEY_VIDEO_TIME_LAPSE_FRAME_INTERVAL); 158 ListPreference pictureSize = group.findPreference(KEY_PICTURE_SIZE); 159 ListPreference whiteBalance = group.findPreference(KEY_WHITE_BALANCE); 160 ListPreference sceneMode = group.findPreference(KEY_SCENE_MODE); 161 ListPreference flashMode = group.findPreference(KEY_FLASH_MODE); 162 ListPreference focusMode = group.findPreference(KEY_FOCUS_MODE); 163 IconListPreference exposure = 164 (IconListPreference) group.findPreference(KEY_EXPOSURE); 165 CountDownTimerPreference timer = 166 (CountDownTimerPreference) group.findPreference(KEY_TIMER); 167 ListPreference countDownSoundEffects = group.findPreference(KEY_TIMER_SOUND_EFFECTS); 168 IconListPreference cameraIdPref = 169 (IconListPreference) group.findPreference(KEY_CAMERA_ID); 170 ListPreference videoFlashMode = 171 group.findPreference(KEY_VIDEOCAMERA_FLASH_MODE); 172 ListPreference videoEffect = group.findPreference(KEY_VIDEO_EFFECT); 173 ListPreference cameraHdr = group.findPreference(KEY_CAMERA_HDR); 174 175 // Since the screen could be loaded from different resources, we need 176 // to check if the preference is available here 177 if (videoQuality != null) { 178 filterUnsupportedOptions(group, videoQuality, getSupportedVideoQuality()); 179 } 180 181 if (pictureSize != null) { 182 filterUnsupportedOptions(group, pictureSize, sizeListToStringList( 183 mParameters.getSupportedPictureSizes())); 184 filterSimilarPictureSize(group, pictureSize); 185 } 186 if (whiteBalance != null) { 187 filterUnsupportedOptions(group, 188 whiteBalance, mParameters.getSupportedWhiteBalance()); 189 } 190 if (sceneMode != null) { 191 filterUnsupportedOptions(group, 192 sceneMode, mParameters.getSupportedSceneModes()); 193 } 194 if (flashMode != null) { 195 filterUnsupportedOptions(group, 196 flashMode, mParameters.getSupportedFlashModes()); 197 } 198 if (focusMode != null) { 199 if (!Util.isFocusAreaSupported(mParameters)) { 200 filterUnsupportedOptions(group, 201 focusMode, mParameters.getSupportedFocusModes()); 202 } else { 203 // Remove the focus mode if we can use tap-to-focus. 204 removePreference(group, focusMode.getKey()); 205 } 206 } 207 if (videoFlashMode != null) { 208 filterUnsupportedOptions(group, 209 videoFlashMode, mParameters.getSupportedFlashModes()); 210 } 211 if (exposure != null) buildExposureCompensation(group, exposure); 212 if (cameraIdPref != null) buildCameraId(group, cameraIdPref); 213 214 if (timeLapseInterval != null) { 215 if (ApiHelper.HAS_TIME_LAPSE_RECORDING) { 216 resetIfInvalid(timeLapseInterval); 217 } else { 218 removePreference(group, timeLapseInterval.getKey()); 219 } 220 } 221 if (videoEffect != null) { 222 if (ApiHelper.HAS_EFFECTS_RECORDING) { 223 initVideoEffect(group, videoEffect); 224 resetIfInvalid(videoEffect); 225 } else { 226 filterUnsupportedOptions(group, videoEffect, null); 227 } 228 } 229 if (cameraHdr != null && (!ApiHelper.HAS_CAMERA_HDR 230 || !Util.isCameraHdrSupported(mParameters))) { 231 removePreference(group, cameraHdr.getKey()); 232 } 233 } 234 235 private void buildExposureCompensation( 236 PreferenceGroup group, IconListPreference exposure) { 237 int max = mParameters.getMaxExposureCompensation(); 238 int min = mParameters.getMinExposureCompensation(); 239 if (max == 0 && min == 0) { 240 removePreference(group, exposure.getKey()); 241 return; 242 } 243 float step = mParameters.getExposureCompensationStep(); 244 245 // show only integer values for exposure compensation 246 int maxValue = (int) FloatMath.floor(max * step); 247 int minValue = (int) FloatMath.ceil(min * step); 248 CharSequence entries[] = new CharSequence[maxValue - minValue + 1]; 249 CharSequence entryValues[] = new CharSequence[maxValue - minValue + 1]; 250 int[] icons = new int[maxValue - minValue + 1]; 251 TypedArray iconIds = mContext.getResources().obtainTypedArray( 252 R.array.pref_camera_exposure_icons); 253 for (int i = minValue; i <= maxValue; ++i) { 254 entryValues[maxValue - i] = Integer.toString(Math.round(i / step)); 255 StringBuilder builder = new StringBuilder(); 256 if (i > 0) builder.append('+'); 257 entries[maxValue - i] = builder.append(i).toString(); 258 icons[maxValue - i] = iconIds.getResourceId(3 + i, 0); 259 } 260 exposure.setUseSingleIcon(true); 261 exposure.setEntries(entries); 262 exposure.setEntryValues(entryValues); 263 exposure.setLargeIconIds(icons); 264 } 265 266 private void buildCameraId( 267 PreferenceGroup group, IconListPreference preference) { 268 int numOfCameras = mCameraInfo.length; 269 if (numOfCameras < 2) { 270 removePreference(group, preference.getKey()); 271 return; 272 } 273 274 CharSequence[] entryValues = new CharSequence[numOfCameras]; 275 for (int i = 0; i < numOfCameras; ++i) { 276 entryValues[i] = "" + i; 277 } 278 preference.setEntryValues(entryValues); 279 } 280 281 private static boolean removePreference(PreferenceGroup group, String key) { 282 for (int i = 0, n = group.size(); i < n; i++) { 283 CameraPreference child = group.get(i); 284 if (child instanceof PreferenceGroup) { 285 if (removePreference((PreferenceGroup) child, key)) { 286 return true; 287 } 288 } 289 if (child instanceof ListPreference && 290 ((ListPreference) child).getKey().equals(key)) { 291 group.removePreference(i); 292 return true; 293 } 294 } 295 return false; 296 } 297 298 private void filterUnsupportedOptions(PreferenceGroup group, 299 ListPreference pref, List<String> supported) { 300 301 // Remove the preference if the parameter is not supported or there is 302 // only one options for the settings. 303 if (supported == null || supported.size() <= 1) { 304 removePreference(group, pref.getKey()); 305 return; 306 } 307 308 pref.filterUnsupported(supported); 309 if (pref.getEntries().length <= 1) { 310 removePreference(group, pref.getKey()); 311 return; 312 } 313 314 resetIfInvalid(pref); 315 } 316 317 private void filterSimilarPictureSize(PreferenceGroup group, 318 ListPreference pref) { 319 pref.filterDuplicated(); 320 if (pref.getEntries().length <= 1) { 321 removePreference(group, pref.getKey()); 322 return; 323 } 324 resetIfInvalid(pref); 325 } 326 327 private void resetIfInvalid(ListPreference pref) { 328 // Set the value to the first entry if it is invalid. 329 String value = pref.getValue(); 330 if (pref.findIndexOfValue(value) == NOT_FOUND) { 331 pref.setValueIndex(0); 332 } 333 } 334 335 private static List<String> sizeListToStringList(List<Size> sizes) { 336 ArrayList<String> list = new ArrayList<String>(); 337 for (Size size : sizes) { 338 list.add(String.format(Locale.ENGLISH, "%dx%d", size.width, size.height)); 339 } 340 return list; 341 } 342 343 public static void upgradeLocalPreferences(SharedPreferences pref) { 344 int version; 345 try { 346 version = pref.getInt(KEY_LOCAL_VERSION, 0); 347 } catch (Exception ex) { 348 version = 0; 349 } 350 if (version == CURRENT_LOCAL_VERSION) return; 351 352 SharedPreferences.Editor editor = pref.edit(); 353 if (version == 1) { 354 // We use numbers to represent the quality now. The quality definition is identical to 355 // that of CamcorderProfile.java. 356 editor.remove("pref_video_quality_key"); 357 } 358 editor.putInt(KEY_LOCAL_VERSION, CURRENT_LOCAL_VERSION); 359 editor.apply(); 360 } 361 362 public static void upgradeGlobalPreferences(SharedPreferences pref) { 363 upgradeOldVersion(pref); 364 upgradeCameraId(pref); 365 } 366 367 private static void upgradeOldVersion(SharedPreferences pref) { 368 int version; 369 try { 370 version = pref.getInt(KEY_VERSION, 0); 371 } catch (Exception ex) { 372 version = 0; 373 } 374 if (version == CURRENT_VERSION) return; 375 376 SharedPreferences.Editor editor = pref.edit(); 377 if (version == 0) { 378 // We won't use the preference which change in version 1. 379 // So, just upgrade to version 1 directly 380 version = 1; 381 } 382 if (version == 1) { 383 // Change jpeg quality {65,75,85} to {normal,fine,superfine} 384 String quality = pref.getString(KEY_JPEG_QUALITY, "85"); 385 if (quality.equals("65")) { 386 quality = "normal"; 387 } else if (quality.equals("75")) { 388 quality = "fine"; 389 } else { 390 quality = "superfine"; 391 } 392 editor.putString(KEY_JPEG_QUALITY, quality); 393 version = 2; 394 } 395 if (version == 2) { 396 editor.putString(KEY_RECORD_LOCATION, 397 pref.getBoolean(KEY_RECORD_LOCATION, false) 398 ? RecordLocationPreference.VALUE_ON 399 : RecordLocationPreference.VALUE_NONE); 400 version = 3; 401 } 402 if (version == 3) { 403 // Just use video quality to replace it and 404 // ignore the current settings. 405 editor.remove("pref_camera_videoquality_key"); 406 editor.remove("pref_camera_video_duration_key"); 407 } 408 409 editor.putInt(KEY_VERSION, CURRENT_VERSION); 410 editor.apply(); 411 } 412 413 private static void upgradeCameraId(SharedPreferences pref) { 414 // The id stored in the preference may be out of range if we are running 415 // inside the emulator and a webcam is removed. 416 // Note: This method accesses the global preferences directly, not the 417 // combo preferences. 418 int cameraId = readPreferredCameraId(pref); 419 if (cameraId == 0) return; // fast path 420 421 int n = CameraHolder.instance().getNumberOfCameras(); 422 if (cameraId < 0 || cameraId >= n) { 423 writePreferredCameraId(pref, 0); 424 } 425 } 426 427 public static int readPreferredCameraId(SharedPreferences pref) { 428 return Integer.parseInt(pref.getString(KEY_CAMERA_ID, "0")); 429 } 430 431 public static void writePreferredCameraId(SharedPreferences pref, 432 int cameraId) { 433 Editor editor = pref.edit(); 434 editor.putString(KEY_CAMERA_ID, Integer.toString(cameraId)); 435 editor.apply(); 436 } 437 438 public static int readExposure(ComboPreferences preferences) { 439 String exposure = preferences.getString( 440 CameraSettings.KEY_EXPOSURE, 441 EXPOSURE_DEFAULT_VALUE); 442 try { 443 return Integer.parseInt(exposure); 444 } catch (Exception ex) { 445 Log.e(TAG, "Invalid exposure: " + exposure); 446 } 447 return 0; 448 } 449 450 public static int readEffectType(SharedPreferences pref) { 451 String effectSelection = pref.getString(KEY_VIDEO_EFFECT, "none"); 452 if (effectSelection.equals("none")) { 453 return EffectsRecorder.EFFECT_NONE; 454 } else if (effectSelection.startsWith("goofy_face")) { 455 return EffectsRecorder.EFFECT_GOOFY_FACE; 456 } else if (effectSelection.startsWith("backdropper")) { 457 return EffectsRecorder.EFFECT_BACKDROPPER; 458 } 459 Log.e(TAG, "Invalid effect selection: " + effectSelection); 460 return EffectsRecorder.EFFECT_NONE; 461 } 462 463 public static Object readEffectParameter(SharedPreferences pref) { 464 String effectSelection = pref.getString(KEY_VIDEO_EFFECT, "none"); 465 if (effectSelection.equals("none")) { 466 return null; 467 } 468 int separatorIndex = effectSelection.indexOf('/'); 469 String effectParameter = 470 effectSelection.substring(separatorIndex + 1); 471 if (effectSelection.startsWith("goofy_face")) { 472 if (effectParameter.equals("squeeze")) { 473 return EffectsRecorder.EFFECT_GF_SQUEEZE; 474 } else if (effectParameter.equals("big_eyes")) { 475 return EffectsRecorder.EFFECT_GF_BIG_EYES; 476 } else if (effectParameter.equals("big_mouth")) { 477 return EffectsRecorder.EFFECT_GF_BIG_MOUTH; 478 } else if (effectParameter.equals("small_mouth")) { 479 return EffectsRecorder.EFFECT_GF_SMALL_MOUTH; 480 } else if (effectParameter.equals("big_nose")) { 481 return EffectsRecorder.EFFECT_GF_BIG_NOSE; 482 } else if (effectParameter.equals("small_eyes")) { 483 return EffectsRecorder.EFFECT_GF_SMALL_EYES; 484 } 485 } else if (effectSelection.startsWith("backdropper")) { 486 // Parameter is a string that either encodes the URI to use, 487 // or specifies 'gallery'. 488 return effectParameter; 489 } 490 491 Log.e(TAG, "Invalid effect selection: " + effectSelection); 492 return null; 493 } 494 495 public static void restorePreferences(Context context, 496 ComboPreferences preferences, Parameters parameters) { 497 int currentCameraId = readPreferredCameraId(preferences); 498 499 // Clear the preferences of both cameras. 500 int backCameraId = CameraHolder.instance().getBackCameraId(); 501 if (backCameraId != -1) { 502 preferences.setLocalId(context, backCameraId); 503 Editor editor = preferences.edit(); 504 editor.clear(); 505 editor.apply(); 506 } 507 int frontCameraId = CameraHolder.instance().getFrontCameraId(); 508 if (frontCameraId != -1) { 509 preferences.setLocalId(context, frontCameraId); 510 Editor editor = preferences.edit(); 511 editor.clear(); 512 editor.apply(); 513 } 514 515 // Switch back to the preferences of the current camera. Otherwise, 516 // we may write the preference to wrong camera later. 517 preferences.setLocalId(context, currentCameraId); 518 519 upgradeGlobalPreferences(preferences.getGlobal()); 520 upgradeLocalPreferences(preferences.getLocal()); 521 522 // Write back the current camera id because parameters are related to 523 // the camera. Otherwise, we may switch to the front camera but the 524 // initial picture size is that of the back camera. 525 initialCameraPictureSize(context, parameters); 526 writePreferredCameraId(preferences, currentCameraId); 527 } 528 529 private ArrayList<String> getSupportedVideoQuality() { 530 ArrayList<String> supported = new ArrayList<String>(); 531 // Check for supported quality 532 if (ApiHelper.HAS_FINE_RESOLUTION_QUALITY_LEVELS) { 533 getFineResolutionQuality(supported); 534 } else { 535 supported.add(Integer.toString(CamcorderProfile.QUALITY_HIGH)); 536 CamcorderProfile high = CamcorderProfile.get( 537 mCameraId, CamcorderProfile.QUALITY_HIGH); 538 CamcorderProfile low = CamcorderProfile.get( 539 mCameraId, CamcorderProfile.QUALITY_LOW); 540 if (high.videoFrameHeight * high.videoFrameWidth > 541 low.videoFrameHeight * low.videoFrameWidth) { 542 supported.add(Integer.toString(CamcorderProfile.QUALITY_LOW)); 543 } 544 } 545 546 return supported; 547 } 548 549 @TargetApi(ApiHelper.VERSION_CODES.HONEYCOMB) 550 private void getFineResolutionQuality(ArrayList<String> supported) { 551 if (CamcorderProfile.hasProfile(mCameraId, CamcorderProfile.QUALITY_1080P)) { 552 supported.add(Integer.toString(CamcorderProfile.QUALITY_1080P)); 553 } 554 if (CamcorderProfile.hasProfile(mCameraId, CamcorderProfile.QUALITY_720P)) { 555 supported.add(Integer.toString(CamcorderProfile.QUALITY_720P)); 556 } 557 if (CamcorderProfile.hasProfile(mCameraId, CamcorderProfile.QUALITY_480P)) { 558 supported.add(Integer.toString(CamcorderProfile.QUALITY_480P)); 559 } 560 } 561 562 private void initVideoEffect(PreferenceGroup group, ListPreference videoEffect) { 563 CharSequence[] values = videoEffect.getEntryValues(); 564 565 boolean goofyFaceSupported = 566 EffectsRecorder.isEffectSupported(EffectsRecorder.EFFECT_GOOFY_FACE); 567 boolean backdropperSupported = 568 EffectsRecorder.isEffectSupported(EffectsRecorder.EFFECT_BACKDROPPER) && 569 Util.isAutoExposureLockSupported(mParameters) && 570 Util.isAutoWhiteBalanceLockSupported(mParameters); 571 572 ArrayList<String> supported = new ArrayList<String>(); 573 for (CharSequence value : values) { 574 String effectSelection = value.toString(); 575 if (!goofyFaceSupported && effectSelection.startsWith("goofy_face")) continue; 576 if (!backdropperSupported && effectSelection.startsWith("backdropper")) continue; 577 supported.add(effectSelection); 578 } 579 580 filterUnsupportedOptions(group, videoEffect, supported); 581 } 582 } 583
