1 /* 2 * Copyright (C) 2016 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.dialer.callcomposer; 18 19 import android.annotation.TargetApi; 20 import android.content.Context; 21 import android.graphics.Bitmap; 22 import android.graphics.Bitmap.CompressFormat; 23 import android.graphics.BitmapFactory; 24 import android.media.ExifInterface; 25 import android.net.Uri; 26 import android.os.Build.VERSION_CODES; 27 import android.support.annotation.NonNull; 28 import android.support.annotation.Nullable; 29 import android.support.v4.util.Pair; 30 import com.android.dialer.callcomposer.util.BitmapResizer; 31 import com.android.dialer.common.Assert; 32 import com.android.dialer.common.concurrent.DialerExecutor.Worker; 33 import com.android.dialer.util.DialerUtils; 34 import java.io.File; 35 import java.io.FileOutputStream; 36 import java.io.InputStream; 37 import java.io.OutputStream; 38 39 /** Task for copying and resizing images to be shared with RCS process. */ 40 @TargetApi(VERSION_CODES.M) 41 class CopyAndResizeImageWorker implements Worker<Uri, Pair<File, String>> { 42 private static final String MIME_TYPE = "image/jpeg"; 43 44 private final Context context; 45 46 CopyAndResizeImageWorker(@NonNull Context context) { 47 this.context = Assert.isNotNull(context); 48 } 49 50 /** 51 * @param input The filepath where the image is located. 52 * @return a Pair where the File contains the resized image, and the String is the result File's 53 * MIME type. 54 */ 55 @Nullable 56 @Override 57 public Pair<File, String> doInBackground(@Nullable Uri input) throws Throwable { 58 // BitmapFactory.decodeStream strips exif data, so we need to save it here and apply it later. 59 int rotation = 0; 60 try { 61 rotation = 62 new ExifInterface(input.getPath()) 63 .getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL); 64 } catch (Exception ignored) { 65 // Couldn't get exif tags, not the end of the world 66 } 67 68 try (InputStream inputStream = context.getContentResolver().openInputStream(input)) { 69 Bitmap bitmap = BitmapFactory.decodeStream(inputStream); 70 bitmap = BitmapResizer.resizeForEnrichedCalling(bitmap, exifToDegrees(rotation)); 71 72 File outputFile = DialerUtils.createShareableFile(context); 73 try (OutputStream outputStream = new FileOutputStream(outputFile)) { 74 // Encode images to jpeg as it is better for camera pictures which we expect to be sending 75 bitmap.compress(CompressFormat.JPEG, 80, outputStream); 76 return new Pair<>(outputFile, MIME_TYPE); 77 } 78 } 79 } 80 81 private static int exifToDegrees(int exifOrientation) { 82 switch (exifOrientation) { 83 case ExifInterface.ORIENTATION_ROTATE_90: 84 return 90; 85 case ExifInterface.ORIENTATION_ROTATE_180: 86 return 180; 87 case ExifInterface.ORIENTATION_ROTATE_270: 88 return 270; 89 default: 90 return 0; 91 } 92 } 93 } 94
