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      1 /*
      2  * Copyright 2013 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 androidx.media.filterfw.samples.simplecamera;
     18 
     19 import android.content.res.AssetManager;
     20 import android.graphics.Bitmap;
     21 import android.graphics.BitmapFactory;
     22 import android.net.Uri;
     23 import android.provider.MediaStore;
     24 import androidx.media.filterfw.Filter;
     25 import androidx.media.filterfw.FrameImage2D;
     26 import androidx.media.filterfw.FrameType;
     27 import androidx.media.filterfw.MffContext;
     28 import androidx.media.filterfw.MffFilterTestCase;
     29 
     30 import java.io.FileNotFoundException;
     31 import java.io.IOException;
     32 import java.util.concurrent.ExecutionException;
     33 import java.util.concurrent.TimeoutException;
     34 
     35 
     36 public class ExposureFilterTest extends MffFilterTestCase {
     37 
     38     private AssetManager assetMgr = null;
     39     @Override
     40     protected Filter createFilter(MffContext mffContext) {
     41         assetMgr = mffContext.getApplicationContext().getAssets();
     42         return new ExposureFilter(mffContext, "exposureFilter");
     43     }
     44 
     45     public void testExposureFilter() throws Exception{
     46         final int INPUT_WIDTH = 480;
     47         final int INPUT_HEIGHT = 640;
     48         FrameImage2D image =
     49                 createFrame(FrameType.image2D(FrameType.ELEMENT_RGBA8888, FrameType.READ_CPU),
     50                         new int[] {INPUT_WIDTH,INPUT_HEIGHT}).asFrameImage2D();
     51 
     52         Bitmap bitmap = BitmapFactory.decodeStream(assetMgr.open("0002_000390.jpg"));
     53         image.setBitmap(bitmap);
     54 
     55         injectInputFrame("image", image);
     56         process();
     57         final float EXPECTED_OVEREXPOSURE = 0.00757f;
     58         assertEquals(EXPECTED_OVEREXPOSURE, ((Float) getOutputFrame("overExposureRating").
     59                 asFrameValue().getValue()).floatValue(), 0.001f);
     60         final float EXPECTED_UNDEREXPOSURE = 0.2077f;
     61         assertEquals(EXPECTED_UNDEREXPOSURE, ((Float) getOutputFrame("underExposureRating").
     62                 asFrameValue().getValue()).floatValue(), 0.001f);
     63     }
     64 }