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 
CameraLatency()54     public CameraLatency() {
55         super(Camera.class);
56     }
57 
58     @Override
setUp()59     protected void setUp() throws Exception {
60         getActivity();
61         super.setUp();
62     }
63 
64     @Override
tearDown()65     protected void tearDown() throws Exception {
66         super.tearDown();
67     }
68 
69     @LargeTest
testImageCapture()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