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      1 /*
      2  * Copyright (C) 2009 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.stress;
     18 
     19 import com.android.camera.Camera;
     20 
     21 import android.app.Instrumentation;
     22 import android.os.Environment;
     23 import android.test.ActivityInstrumentationTestCase2;
     24 import android.test.suitebuilder.annotation.LargeTest;
     25 import android.util.Log;
     26 import android.view.KeyEvent;
     27 
     28 import java.io.BufferedWriter;
     29 import java.io.FileWriter;
     30 
     31 /**
     32  * Junit / Instrumentation test case for camera test
     33  *
     34  */
     35 
     36 public class CameraLatency extends ActivityInstrumentationTestCase2 <Camera> {
     37     private String TAG = "CameraLatency";
     38     private static final int TOTAL_NUMBER_OF_IMAGECAPTURE = 20;
     39     private static final long WAIT_FOR_IMAGE_CAPTURE_TO_BE_TAKEN = 4000;
     40     private static final String CAMERA_TEST_OUTPUT_FILE =
     41             Environment.getExternalStorageDirectory().toString() + "/mediaStressOut.txt";
     42 
     43     private long mTotalAutoFocusTime;
     44     private long mTotalShutterLag;
     45     private long mTotalShutterToPictureDisplayedTime;
     46     private long mTotalPictureDisplayedToJpegCallbackTime;
     47     private long mTotalJpegCallbackFinishTime;
     48     private long mAvgAutoFocusTime;
     49     private long mAvgShutterLag = mTotalShutterLag;
     50     private long mAvgShutterToPictureDisplayedTime;
     51     private long mAvgPictureDisplayedToJpegCallbackTime;
     52     private long mAvgJpegCallbackFinishTime;
     53 
     54     public CameraLatency() {
     55         super(Camera.class);
     56     }
     57 
     58     @Override
     59     protected void setUp() throws Exception {
     60         getActivity();
     61         super.setUp();
     62     }
     63 
     64     @Override
     65     protected void tearDown() throws Exception {
     66         super.tearDown();
     67     }
     68 
     69     @LargeTest
     70     public void testImageCapture() {
     71         Log.v(TAG, "start testImageCapture test");
     72         Instrumentation inst = getInstrumentation();
     73         inst.sendKeyDownUpSync(KeyEvent.KEYCODE_DPAD_DOWN);
     74         try {
     75             for (int i = 0; i < TOTAL_NUMBER_OF_IMAGECAPTURE; i++) {
     76                 Thread.sleep(WAIT_FOR_IMAGE_CAPTURE_TO_BE_TAKEN);
     77                 inst.sendKeyDownUpSync(KeyEvent.KEYCODE_DPAD_CENTER);
     78                 Thread.sleep(WAIT_FOR_IMAGE_CAPTURE_TO_BE_TAKEN);
     79                 //skip the first measurement
     80                 if (i != 0) {
     81                     Camera c = getActivity();
     82                     mTotalAutoFocusTime += c.mAutoFocusTime;
     83                     mTotalShutterLag += c.mShutterLag;
     84                     mTotalShutterToPictureDisplayedTime +=
     85                             c.mShutterToPictureDisplayedTime;
     86                     mTotalPictureDisplayedToJpegCallbackTime +=
     87                             c.mPictureDisplayedToJpegCallbackTime;
     88                     mTotalJpegCallbackFinishTime += c.mJpegCallbackFinishTime;
     89                 }
     90             }
     91         } catch (Exception e) {
     92             Log.v(TAG, "Got exception", e);
     93         }
     94         //ToDO: yslau
     95         //1) Need to get the baseline from the cupcake so that we can add the
     96         //failure condition of the camera latency.
     97         //2) Only count those number with succesful capture. Set the timer to invalid
     98         //before capture and ignore them if the value is invalid
     99         int numberofRun = TOTAL_NUMBER_OF_IMAGECAPTURE - 1;
    100         mAvgAutoFocusTime = mTotalAutoFocusTime / numberofRun;
    101         mAvgShutterLag = mTotalShutterLag / numberofRun;
    102         mAvgShutterToPictureDisplayedTime =
    103                 mTotalShutterToPictureDisplayedTime / numberofRun;
    104         mAvgPictureDisplayedToJpegCallbackTime =
    105                 mTotalPictureDisplayedToJpegCallbackTime / numberofRun;
    106         mAvgJpegCallbackFinishTime =
    107                 mTotalJpegCallbackFinishTime / numberofRun;
    108 
    109         try {
    110             FileWriter fstream = null;
    111             fstream = new FileWriter(CAMERA_TEST_OUTPUT_FILE, true);
    112             BufferedWriter out = new BufferedWriter(fstream);
    113             out.write("Camera Latency : \n");
    114             out.write("Number of loop: " + TOTAL_NUMBER_OF_IMAGECAPTURE + "\n");
    115             out.write("Avg AutoFocus = " + mAvgAutoFocusTime + "\n");
    116             out.write("Avg mShutterLag = " + mAvgShutterLag + "\n");
    117             out.write("Avg mShutterToPictureDisplayedTime = "
    118                     + mAvgShutterToPictureDisplayedTime + "\n");
    119             out.write("Avg mPictureDisplayedToJpegCallbackTime = "
    120                     + mAvgPictureDisplayedToJpegCallbackTime + "\n");
    121             out.write("Avg mJpegCallbackFinishTime = " +
    122                     mAvgJpegCallbackFinishTime + "\n");
    123             out.close();
    124             fstream.close();
    125         } catch (Exception e) {
    126             fail("Camera Latency write output to file");
    127         }
    128         Log.v(TAG, "The Image capture wait time = " +
    129             WAIT_FOR_IMAGE_CAPTURE_TO_BE_TAKEN);
    130         Log.v(TAG, "Avg AutoFocus = " + mAvgAutoFocusTime);
    131         Log.v(TAG, "Avg mShutterLag = " + mAvgShutterLag);
    132         Log.v(TAG, "Avg mShutterToPictureDisplayedTime = "
    133                 + mAvgShutterToPictureDisplayedTime);
    134         Log.v(TAG, "Avg mPictureDisplayedToJpegCallbackTime = "
    135                 + mAvgPictureDisplayedToJpegCallbackTime);
    136         Log.v(TAG, "Avg mJpegCallbackFinishTime = " + mAvgJpegCallbackFinishTime);
    137     }
    138 }
    139 
    140