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