1227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks/* 2227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * Copyright 2013 The Android Open Source Project 3227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * 4227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * Licensed under the Apache License, Version 2.0 (the "License"); 5227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * you may not use this file except in compliance with the License. 6227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * You may obtain a copy of the License at 7227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * 8227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * http://www.apache.org/licenses/LICENSE-2.0 9227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * 10227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * Unless required by applicable law or agreed to in writing, software 11227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * distributed under the License is distributed on an "AS IS" BASIS, 12227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * See the License for the specific language governing permissions and 14227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks * limitations under the License. 15227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks */ 16227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 17227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendrickspackage androidx.media.filterfw.samples.simplecamera; 18227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 19227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricksimport android.util.Log; 20227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricksimport androidx.media.filterfw.Filter; 21227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricksimport androidx.media.filterfw.Frame; 22227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricksimport androidx.media.filterfw.FrameImage2D; 23227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricksimport androidx.media.filterfw.FrameType; 24227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricksimport androidx.media.filterfw.FrameValue; 25227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricksimport androidx.media.filterfw.MffContext; 26227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricksimport androidx.media.filterfw.OutputPort; 27227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricksimport androidx.media.filterfw.Signature; 28227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 29227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricksimport java.nio.ByteBuffer; 30227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 31227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendrickspublic class ContrastRatioFilter extends Filter { 32227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 33227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks private static final String TAG = "ContrastRatioFilter"; 34227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks private static boolean mLogVerbose = Log.isLoggable(TAG, Log.VERBOSE); 35227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 36227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks public ContrastRatioFilter(MffContext context, String name) { 37227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks super(context, name); 38227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks } 39227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 40227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks @Override 41227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks public Signature getSignature() { 42227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks FrameType imageIn = FrameType.image2D(FrameType.ELEMENT_RGBA8888, FrameType.READ_CPU); 43227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks FrameType floatT = FrameType.single(float.class); 44227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks return new Signature().addInputPort("image", Signature.PORT_REQUIRED, imageIn) 45227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks .addOutputPort("contrastRatingToGoodness", Signature.PORT_REQUIRED, floatT) 46227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks .disallowOtherPorts(); 47227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 48227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks } 49227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 50227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks @Override 51227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks protected void onProcess() { 52227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks FrameImage2D inputImage = getConnectedInputPort("image").pullFrame().asFrameImage2D(); 53227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 54227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks float contrastRatio; 55227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks ByteBuffer inputBuffer = inputImage.lockBytes(Frame.MODE_READ); 56227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 57227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks contrastRatio = contrastOperator(inputImage.getWidth(), inputImage.getHeight(), 58227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks inputBuffer); 59227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 60227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks inputImage.unlock(); 61227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 62227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks if (mLogVerbose) Log.v(TAG, "contrastRatio: " + contrastRatio); 63227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 64227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks OutputPort contrastToGoodnessPort = getConnectedOutputPort("contrastRatingToGoodness"); 65227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks FrameValue contrastOutFrame2 = 66227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks contrastToGoodnessPort.fetchAvailableFrame(null).asFrameValue(); 67227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks contrastOutFrame2.setValue(contrastRatio); 68227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks contrastToGoodnessPort.pushFrame(contrastOutFrame2); 69227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 70227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 71227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks } 72227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 73227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks private static native float contrastOperator(int width, int height, ByteBuffer imageBuffer); 74227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 75227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks static { 76227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks System.loadLibrary("smartcamera_jni"); 77227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks } 78227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks 79227b47625d7482b5b47ad0e4c70ce0a246236adeBenjamin Hendricks} 80