| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.camera.settings; |
| |
| import android.content.ContentResolver; |
| import android.content.Context; |
| |
| import com.android.camera.settings.SettingsUtil.CameraDeviceSelector; |
| import com.android.camera.settings.SettingsUtil.SelectedVideoQualities; |
| import com.android.camera.util.GservicesHelper; |
| import com.android.camera.util.Size; |
| import com.android.ex.camera2.portability.CameraAgentFactory; |
| import com.android.ex.camera2.portability.CameraDeviceInfo; |
| import com.google.common.base.Optional; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import javax.annotation.Nonnull; |
| import javax.annotation.ParametersAreNonnullByDefault; |
| |
| /** |
| * Loads the camera picture sizes that can be set by the user. |
| * <p> |
| * This class is compatible with pre-Lollipop since it uses the compatibility |
| * layer to access the camera metadata. |
| */ |
| @ParametersAreNonnullByDefault |
| public class PictureSizeLoader { |
| /** |
| * Holds the sizes for the back- and front cameras which will be available |
| * to the user for selection form settings. |
| */ |
| @ParametersAreNonnullByDefault |
| public static class PictureSizes { |
| public final List<Size> backCameraSizes; |
| public final List<Size> frontCameraSizes; |
| public final Optional<SelectedVideoQualities> videoQualitiesBack; |
| public final Optional<SelectedVideoQualities> videoQualitiesFront; |
| |
| PictureSizes(List<Size> backCameraSizes, |
| List<Size> frontCameraSizes, |
| Optional<SelectedVideoQualities> videoQualitiesBack, |
| Optional<SelectedVideoQualities> videoQualitiesFront) { |
| this.backCameraSizes = backCameraSizes; |
| this.frontCameraSizes = frontCameraSizes; |
| this.videoQualitiesBack = videoQualitiesBack; |
| this.videoQualitiesFront = videoQualitiesFront; |
| } |
| } |
| |
| private final Context mContext; |
| private final ContentResolver mContentResolver; |
| private final CameraDeviceInfo mCameraDeviceInfo; |
| private final boolean mCachedOnly; |
| |
| /** |
| * Initializes a new picture size loader. |
| * <p> |
| * This constructor will default to using the camera devices if the size |
| * values were not found in cache. |
| * |
| * @param context used to load caches sizes from preferences. |
| */ |
| public PictureSizeLoader(Context context) { |
| this(context, false); |
| } |
| |
| /** |
| * Initializes a new picture size loader. |
| * |
| * @param context used to load caches sizes from preferences. |
| * @param cachedOnly if set to true, this will only check the cache for |
| * sizes. If the cache is empty, this will NOT attempt to open |
| * the camera devices in order to obtain the sizes. |
| */ |
| public PictureSizeLoader(Context context, boolean cachedOnly) { |
| mContext = context; |
| mContentResolver = context.getContentResolver(); |
| mCameraDeviceInfo = CameraAgentFactory |
| .getAndroidCameraAgent(context, CameraAgentFactory.CameraApi.API_1) |
| .getCameraDeviceInfo(); |
| mCachedOnly = cachedOnly; |
| } |
| |
| public void release(){ |
| CameraAgentFactory.recycle(CameraAgentFactory.CameraApi.API_1); |
| } |
| |
| /** |
| * Computes the list of picture sizes that should be displayed by settings. |
| * <p> |
| * For this it will open the camera devices to determine the available |
| * sizes, if the sizes are not already cached. This is to be compatible with |
| * devices running Camera API 1. |
| * <p> |
| * We then calculate the resolutions that should be available and in the end |
| * filter it in case a resolution is on the blacklist for this device. |
| */ |
| public PictureSizes computePictureSizes() { |
| List<Size> backCameraSizes = computeSizesForCamera(SettingsUtil.CAMERA_FACING_BACK); |
| List<Size> frontCameraSizes = computeSizesForCamera(SettingsUtil.CAMERA_FACING_FRONT); |
| Optional<SelectedVideoQualities> videoQualitiesBack = |
| computeQualitiesForCamera(SettingsUtil.CAMERA_FACING_BACK); |
| Optional<SelectedVideoQualities> videoQualitiesFront = |
| computeQualitiesForCamera(SettingsUtil.CAMERA_FACING_FRONT); |
| return new PictureSizes(backCameraSizes, frontCameraSizes, videoQualitiesBack, |
| videoQualitiesFront); |
| } |
| |
| private List<Size> computeSizesForCamera(CameraDeviceSelector facingSelector) { |
| List<Size> sizes; |
| int cameraId = SettingsUtil.getCameraId(mCameraDeviceInfo, facingSelector); |
| if (cameraId >= 0) { |
| if (mCachedOnly) { |
| sizes = CameraPictureSizesCacher.getCachedSizesForCamera(cameraId, mContext) |
| .orNull(); |
| } else { |
| sizes = CameraPictureSizesCacher.getSizesForCamera(cameraId, mContext); |
| } |
| |
| if (sizes != null) { |
| sizes = ResolutionUtil |
| .getDisplayableSizesFromSupported(sizes, |
| facingSelector == SettingsUtil.CAMERA_FACING_BACK); |
| String blacklisted = GservicesHelper |
| .getBlacklistedResolutionsBack(mContentResolver); |
| sizes = ResolutionUtil.filterBlackListedSizes(sizes, blacklisted); |
| return sizes; |
| } |
| } |
| return new ArrayList<>(0); |
| } |
| |
| private Optional<SelectedVideoQualities> computeQualitiesForCamera( |
| CameraDeviceSelector facingSelector) { |
| int cameraId = SettingsUtil.getCameraId(mCameraDeviceInfo, facingSelector); |
| if (cameraId >= 0) { |
| // This is guaranteed not to be null/absent. |
| return Optional.of(SettingsUtil.getSelectedVideoQualities(cameraId)); |
| } |
| return Optional.absent(); |
| } |
| } |