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/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.camera.stress;
import com.android.camera.Camera;
import android.app.Instrumentation;
import android.os.Environment;
import android.test.ActivityInstrumentationTestCase2;
import android.test.suitebuilder.annotation.LargeTest;
import android.util.Log;
import android.view.KeyEvent;
import java.io.BufferedWriter;
import java.io.FileWriter;
/**
* Junit / Instrumentation test case for camera test
*
*/
public class CameraLatency extends ActivityInstrumentationTestCase2 <Camera> {
private String TAG = "CameraLatency";
private static final int TOTAL_NUMBER_OF_IMAGECAPTURE = 20;
private static final long WAIT_FOR_IMAGE_CAPTURE_TO_BE_TAKEN = 4000;
private static final String CAMERA_TEST_OUTPUT_FILE =
Environment.getExternalStorageDirectory().toString() + "/mediaStressOut.txt";
private long mTotalAutoFocusTime;
private long mTotalShutterLag;
private long mTotalShutterToPictureDisplayedTime;
private long mTotalPictureDisplayedToJpegCallbackTime;
private long mTotalJpegCallbackFinishTime;
private long mAvgAutoFocusTime;
private long mAvgShutterLag = mTotalShutterLag;
private long mAvgShutterToPictureDisplayedTime;
private long mAvgPictureDisplayedToJpegCallbackTime;
private long mAvgJpegCallbackFinishTime;
public CameraLatency() {
super("com.google.android.camera", Camera.class);
}
@Override
protected void setUp() throws Exception {
getActivity();
super.setUp();
}
@Override
protected void tearDown() throws Exception {
super.tearDown();
}
@LargeTest
public void testImageCapture() {
Log.v(TAG, "start testImageCapture test");
Instrumentation inst = getInstrumentation();
inst.sendKeyDownUpSync(KeyEvent.KEYCODE_DPAD_DOWN);
inst.sendKeyDownUpSync(KeyEvent.KEYCODE_DPAD_DOWN);
try {
for (int i = 0; i < TOTAL_NUMBER_OF_IMAGECAPTURE; i++) {
Thread.sleep(WAIT_FOR_IMAGE_CAPTURE_TO_BE_TAKEN);
inst.sendKeyDownUpSync(KeyEvent.KEYCODE_DPAD_CENTER);
Thread.sleep(WAIT_FOR_IMAGE_CAPTURE_TO_BE_TAKEN);
//skip the first measurement
if (i != 0) {
Camera c = getActivity();
mTotalAutoFocusTime += c.mAutoFocusTime;
mTotalShutterLag += c.mShutterLag;
mTotalShutterToPictureDisplayedTime +=
c.mShutterToPictureDisplayedTime;
mTotalPictureDisplayedToJpegCallbackTime +=
c.mPictureDisplayedToJpegCallbackTime;
mTotalJpegCallbackFinishTime += c.mJpegCallbackFinishTime;
}
}
} catch (Exception e) {
Log.v(TAG, e.toString());
}
//ToDO: yslau
//1) Need to get the baseline from the cupcake so that we can add the
//failure condition of the camera latency.
//2) Only count those number with succesful capture. Set the timer to invalid
//before capture and ignore them if the value is invalid
int numberofRun = TOTAL_NUMBER_OF_IMAGECAPTURE - 1;
mAvgAutoFocusTime = mTotalAutoFocusTime / numberofRun;
mAvgShutterLag = mTotalShutterLag / numberofRun;
mAvgShutterToPictureDisplayedTime =
mTotalShutterToPictureDisplayedTime / numberofRun;
mAvgPictureDisplayedToJpegCallbackTime =
mTotalPictureDisplayedToJpegCallbackTime / numberofRun;
mAvgJpegCallbackFinishTime =
mTotalJpegCallbackFinishTime / numberofRun;
try {
FileWriter fstream = null;
fstream = new FileWriter(CAMERA_TEST_OUTPUT_FILE, true);
BufferedWriter out = new BufferedWriter(fstream);
out.write("Camera Latency : \n");
out.write("Number of loop: " + TOTAL_NUMBER_OF_IMAGECAPTURE + "\n");
out.write("Avg AutoFocus = " + mAvgAutoFocusTime + "\n");
out.write("Avg mShutterLag = " + mAvgShutterLag + "\n");
out.write("Avg mShutterToPictureDisplayedTime = "
+ mAvgShutterToPictureDisplayedTime + "\n");
out.write("Avg mPictureDisplayedToJpegCallbackTime = "
+ mAvgPictureDisplayedToJpegCallbackTime + "\n");
out.write("Avg mJpegCallbackFinishTime = " +
mAvgJpegCallbackFinishTime + "\n");
out.close();
fstream.close();
} catch (Exception e) {
fail("Camera Latency write output to file");
}
Log.v(TAG, "The Image capture wait time = " +
WAIT_FOR_IMAGE_CAPTURE_TO_BE_TAKEN);
Log.v(TAG, "Avg AutoFocus = " + mAvgAutoFocusTime);
Log.v(TAG, "Avg mShutterLag = " + mAvgShutterLag);
Log.v(TAG, "Avg mShutterToPictureDisplayedTime = "
+ mAvgShutterToPictureDisplayedTime);
Log.v(TAG, "Avg mPictureDisplayedToJpegCallbackTime = "
+ mAvgPictureDisplayedToJpegCallbackTime);
Log.v(TAG, "Avg mJpegCallbackFinishTime = " + mAvgJpegCallbackFinishTime);
assertTrue("testImageCapture", true);
}
}
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