1 /* 2 * Copyright (C) 2015 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.one.v2.camera2proxy; 18 19 import android.graphics.ImageFormat; 20 import android.media.Image; 21 import android.os.Handler; 22 import android.view.Surface; 23 24 import com.google.common.base.Objects; 25 26 import javax.annotation.Nonnull; 27 import javax.annotation.Nullable; 28 import javax.annotation.concurrent.GuardedBy; 29 30 /** 31 * A replacement for {@link android.media.ImageReader}. 32 */ 33 public final class AndroidImageReaderProxy implements ImageReaderProxy { 34 private final Object mLock; 35 @GuardedBy("mLock") 36 private final android.media.ImageReader mDelegate; 37 AndroidImageReaderProxy(android.media.ImageReader delegate)38 public AndroidImageReaderProxy(android.media.ImageReader delegate) { 39 mLock = new Object(); 40 mDelegate = delegate; 41 } 42 43 /** 44 * @See {@link android.media.ImageReader} 45 */ newInstance(int width, int height, int format, int maxImages)46 public static ImageReaderProxy newInstance(int width, int height, int format, int maxImages) { 47 return new AndroidImageReaderProxy(android.media.ImageReader.newInstance(width, height, 48 format, maxImages)); 49 } 50 imageFormatToString(int imageFormat)51 private static String imageFormatToString(int imageFormat) { 52 switch (imageFormat) { 53 case ImageFormat.JPEG: 54 return "JPEG"; 55 case ImageFormat.NV16: 56 return "NV16"; 57 case ImageFormat.NV21: 58 return "NV21"; 59 case ImageFormat.RAW10: 60 return "RAW10"; 61 case ImageFormat.RAW_SENSOR: 62 return "RAW_SENSOR"; 63 case ImageFormat.RGB_565: 64 return "RGB_565"; 65 case ImageFormat.UNKNOWN: 66 return "UNKNOWN"; 67 case ImageFormat.YUV_420_888: 68 return "YUV_420_888"; 69 case ImageFormat.YUY2: 70 return "YUY2"; 71 case ImageFormat.YV12: 72 return "YV12"; 73 } 74 return Integer.toString(imageFormat); 75 } 76 77 @Override getWidth()78 public int getWidth() { 79 synchronized (mLock) { 80 return mDelegate.getWidth(); 81 } 82 } 83 84 @Override getHeight()85 public int getHeight() { 86 synchronized (mLock) { 87 return mDelegate.getHeight(); 88 } 89 } 90 91 @Override getImageFormat()92 public int getImageFormat() { 93 synchronized (mLock) { 94 return mDelegate.getImageFormat(); 95 } 96 } 97 98 @Override getMaxImages()99 public int getMaxImages() { 100 synchronized (mLock) { 101 return mDelegate.getMaxImages(); 102 } 103 } 104 105 @Override 106 @Nonnull getSurface()107 public Surface getSurface() { 108 synchronized (mLock) { 109 return mDelegate.getSurface(); 110 } 111 } 112 113 @Override 114 @Nullable acquireLatestImage()115 public ImageProxy acquireLatestImage() { 116 synchronized (mLock) { 117 Image image = mDelegate.acquireLatestImage(); 118 if (image == null) { 119 return null; 120 } else { 121 return new AndroidImageProxy(image); 122 } 123 } 124 } 125 126 @Override 127 @Nullable acquireNextImage()128 public ImageProxy acquireNextImage() { 129 synchronized (mLock) { 130 Image image = mDelegate.acquireNextImage(); 131 if (image == null) { 132 return null; 133 } else { 134 return new AndroidImageProxy(image); 135 } 136 } 137 } 138 139 @Override setOnImageAvailableListener(@onnull final ImageReaderProxy.OnImageAvailableListener listener, Handler handler)140 public void setOnImageAvailableListener(@Nonnull 141 final ImageReaderProxy.OnImageAvailableListener listener, 142 Handler handler) { 143 synchronized (mLock) { 144 mDelegate.setOnImageAvailableListener( 145 new android.media.ImageReader.OnImageAvailableListener() { 146 @Override 147 public void onImageAvailable(android.media.ImageReader imageReader) { 148 listener.onImageAvailable(); 149 } 150 }, handler); 151 } 152 } 153 154 @Override close()155 public void close() { 156 synchronized (mLock) { 157 mDelegate.close(); 158 } 159 } 160 161 @Override toString()162 public String toString() { 163 Objects.ToStringHelper tsh; 164 synchronized (mLock) { 165 tsh = Objects.toStringHelper(mDelegate); 166 } 167 return tsh.add("width", getWidth()) 168 .add("height", getHeight()) 169 .add("format", imageFormatToString(getImageFormat())) 170 .toString(); 171 } 172 } 173