/*
* Copyright (C) 2012 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.mediaframeworktest.stress;
import com.android.mediaframeworktest.MediaFrameworkTest;
import com.android.mediaframeworktest.helpers.CameraTestHelper;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.Writer;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
import java.util.List;
import android.hardware.Camera.Parameters;
import android.os.Environment;
import android.os.Handler;
import android.os.Looper;
import android.test.ActivityInstrumentationTestCase2;
import android.test.suitebuilder.annotation.LargeTest;
import android.util.Log;
import android.view.SurfaceHolder;
/**
* Junit / Instrumentation test case for the following camera APIs:
* - camera zoom
* - scene mode
*
* adb shell am instrument
* -e class com.android.mediaframeworktest.stress.CameraStressTest
* -w com.android.mediaframeworktest/.CameraStressTestRunner
*/
public class CameraStressTest extends ActivityInstrumentationTestCase2<MediaFrameworkTest> {
private static final int NUMBER_OF_SCENE_MODE_LOOPS = 10;
private static final int NUMBER_OF_ZOOM_LOOPS = 100;
private static final long WAIT_TIMEOUT = 10 * 1000; // 10 seconds
private static final String CAMERA_STRESS_OUTPUT = "cameraStressOutput.txt";
private CameraTestHelper mCameraTestHelper;
private Handler mHandler;
private Thread mLooperThread;
private Writer mOutput;
private String TAG = "CameraStressTest";
public CameraStressTest() {
super("com.android.mediaframeworktest", MediaFrameworkTest.class);
}
protected void setUp() throws Exception {
final Semaphore sem = new Semaphore(0);
mLooperThread = new Thread() {
@Override
public void run() {
Log.v(TAG, "starting looper");
Looper.prepare();
mHandler = new Handler();
sem.release();
Looper.loop();
Log.v(TAG, "quit looper");
}
};
mLooperThread.start();
if (!sem.tryAcquire(WAIT_TIMEOUT, TimeUnit.MILLISECONDS)) {
fail("Failed to start the looper.");
}
getActivity();
super.setUp();
mCameraTestHelper = new CameraTestHelper();
File stressOutFile = new File(String.format("%s/%s",
Environment.getExternalStorageDirectory(), CAMERA_STRESS_OUTPUT));
mOutput = new BufferedWriter(new FileWriter(stressOutFile, true));
mOutput.write(this.getName() + "\n");
}
@Override
protected void tearDown() throws Exception {
if (mHandler != null) {
mHandler.getLooper().quit();
mHandler = null;
}
if (mLooperThread != null) {
mLooperThread.join(WAIT_TIMEOUT);
if (mLooperThread.isAlive()) {
fail("Failed to stop the looper.");
}
mLooperThread = null;
}
mOutput.write("\n\n");
mOutput.close();
super.tearDown();
}
private void runOnLooper(final Runnable command) throws InterruptedException {
final Semaphore sem = new Semaphore(0);
mHandler.post(new Runnable() {
@Override
public void run() {
try {
command.run();
} finally {
sem.release();
}
}
});
if (!sem.tryAcquire(WAIT_TIMEOUT, TimeUnit.MILLISECONDS)) {
fail("Failed to run the command on the looper.");
}
}
/**
* Stress test iterating on the various scene modes (action, night, party, etc.)
*/
@LargeTest
public void testStressCameraSceneModes() throws Exception {
try {
SurfaceHolder surfaceHolder = MediaFrameworkTest.mSurfaceView.getHolder();
Parameters params = mCameraTestHelper.getCameraParameters();
List<String> supportedSceneModes = params.getSupportedSceneModes();
assertNotNull("No scene modes supported", supportedSceneModes);
mOutput.write("Total number of loops: " +
(NUMBER_OF_SCENE_MODE_LOOPS * supportedSceneModes.size()) + "\n");
Log.v(TAG, "Start preview");
mOutput.write("No of loop: ");
for (int i = 0; i < supportedSceneModes.size(); i++) {
for (int j = 0; j < NUMBER_OF_SCENE_MODE_LOOPS; j++) {
runOnLooper(new Runnable() {
@Override
public void run() {
mCameraTestHelper.setupCameraTest();
}
});
Log.v(TAG, "Setting scene mode to " + supportedSceneModes.get(i));
params.setSceneMode(supportedSceneModes.get(i));
mCameraTestHelper.setParameters(params);
mCameraTestHelper.startCameraPreview(surfaceHolder);
mCameraTestHelper.capturePhoto();
if (i == 0 && j == 0) {
mOutput.write(Integer.toString(j + i * NUMBER_OF_SCENE_MODE_LOOPS));
} else {
mOutput.write(", " + (j + i * NUMBER_OF_SCENE_MODE_LOOPS));
}
}
}
mCameraTestHelper.cleanupTestImages();
} catch (Exception e) {
Log.e(TAG, e.toString());
fail("Camera scene mode test Exception");
}
}
/**
* Stress test iterating on the range of supported camera zoom levels
*/
@LargeTest
public void testStressCameraZoom() throws Exception {
try {
SurfaceHolder surfaceHolder = MediaFrameworkTest.mSurfaceView.getHolder();
Parameters params = mCameraTestHelper.getCameraParameters();
if (!params.isSmoothZoomSupported() && !params.isZoomSupported()) {
Log.v(TAG, "Device camera does not support zoom");
fail("Camera zoom stress test failed due to unsupported feature");
} else {
Log.v(TAG, "Device camera does support zoom");
Log.v(TAG, "Start preview");
mOutput.write("Total number of loops: " + NUMBER_OF_ZOOM_LOOPS + "\n");
mOutput.write("No of loops: ");
int nextZoomLevel = 0;
for (int i = 0; i < NUMBER_OF_ZOOM_LOOPS; i++) {
runOnLooper(new Runnable() {
@Override
public void run() {
mCameraTestHelper.setupCameraTest();
}
});
mCameraTestHelper.startCameraPreview(surfaceHolder);
params = mCameraTestHelper.mCamera.getParameters();
int currentZoomLevel = params.getZoom();
if (nextZoomLevel >= params.getMaxZoom()) {
nextZoomLevel = 0;
}
++nextZoomLevel;
if (params.isSmoothZoomSupported()) {
mCameraTestHelper.mCamera.startSmoothZoom(nextZoomLevel);
} else {
params.setZoom(nextZoomLevel);
mCameraTestHelper.setParameters(params);
}
mCameraTestHelper.capturePhoto();
if (i == 0) {
mOutput.write(Integer.toString(i));
} else {
mOutput.write(", " + i);
}
}
}
mCameraTestHelper.cleanupTestImages();
} catch (Exception e) {
Log.e(TAG, e.toString());
fail("Camera zoom stress test Exception");
}
}
}