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Android example source code file (MediaPlayerPerformance.java)

This example Android source code file (MediaPlayerPerformance.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" TM.

Java - Android tags/keywords

android, bufferedwriter, conditionvariable, decoder_limit, encoder_limit, exception, file, filewriter, h263, io, largetest, media, mediarecorder, num_playback_in_each_loop, num_stress_loop, os, photo, string, test, writer

The MediaPlayerPerformance.java Android example source code

/*
 * Copyright (C) 2008 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.performance;

import com.android.mediaframeworktest.MediaFrameworkTest;
import com.android.mediaframeworktest.MediaNames;

import android.database.sqlite.SQLiteDatabase;
import android.hardware.Camera;
import android.hardware.Camera.PreviewCallback;
import android.media.MediaPlayer;
import android.media.MediaRecorder;
import android.os.ConditionVariable;
import android.os.Looper;
import android.os.SystemClock;
import android.test.ActivityInstrumentationTestCase;
import android.test.suitebuilder.annotation.LargeTest;
import android.test.suitebuilder.annotation.Suppress;
import android.util.Log;
import android.view.SurfaceHolder;

import java.io.FileDescriptor;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.Writer;
import java.io.File;
import java.io.FileWriter;
import java.io.BufferedWriter;

import android.media.MediaMetadataRetriever;
import com.android.mediaframeworktest.MediaProfileReader;

import android.hardware.Camera.PreviewCallback;

/**
 * Junit / Instrumentation - performance measurement for media player and 
 * recorder
 */
public class MediaPlayerPerformance extends ActivityInstrumentationTestCase<MediaFrameworkTest> {

    private String TAG = "MediaPlayerPerformance";

    private SQLiteDatabase mDB;
    private SurfaceHolder mSurfaceHolder = null;
    private static final int NUM_STRESS_LOOP = 10;
    private static final int NUM_PLAYBACk_IN_EACH_LOOP = 20;
    private static final long MEDIA_STRESS_WAIT_TIME = 5000; //5 seconds
    private static final String MEDIA_MEMORY_OUTPUT =
        "/sdcard/mediaMemOutput.txt";

    private static int mStartMemory = 0;
    private static int mEndMemory = 0;
    private static int mStartPid = 0;
    private static int mEndPid = 0;

    private Looper mLooper = null;
    private RawPreviewCallback mRawPreviewCallback = new RawPreviewCallback();
    private final ConditionVariable mPreviewDone = new ConditionVariable();
    private static int WAIT_FOR_COMMAND_TO_COMPLETE = 10000;  // Milliseconds.

    //the tolerant memory leak
    private static int ENCODER_LIMIT = 150;
    private static int DECODER_LIMIT = 150;
    private static int CAMERA_LIMIT = 80;

    Camera mCamera;

    public MediaPlayerPerformance() {
        super("com.android.mediaframeworktest", MediaFrameworkTest.class);
    }

    protected void setUp() throws Exception {
        super.setUp();
    }

    public void createDB() {
        mDB = SQLiteDatabase.openOrCreateDatabase("/sdcard/perf.db", null);
        mDB.execSQL("CREATE TABLE IF NOT EXISTS perfdata (_id INTEGER PRIMARY KEY," + 
                "file TEXT," + "setdatatime LONG," + "preparetime LONG," +
                "playtime LONG" + ");");
        //clean the table before adding new data
        mDB.execSQL("DELETE FROM perfdata");
    }

    public void audioPlaybackStartupTime(String[] testFile) {
        long t1 = 0;
        long t2 = 0;
        long t3 = 0;
        long t4 = 0;
        long setDataSourceDuration = 0;
        long prepareDuration = 0;
        long startDuration = 0;
        long totalSetDataTime = 0;
        long totalPrepareTime = 0;
        long totalStartDuration = 0;

        int numberOfFiles = testFile.length;
        Log.v(TAG, "File length " + numberOfFiles);
        for (int k = 0; k < numberOfFiles; k++) {
            MediaPlayer mp = new MediaPlayer();
            try {
                t1 = SystemClock.uptimeMillis();
                FileInputStream fis = new FileInputStream(testFile[k]);
                FileDescriptor fd = fis.getFD();
                mp.setDataSource(fd);
                fis.close();
                t2 = SystemClock.uptimeMillis();
                mp.prepare();
                t3 = SystemClock.uptimeMillis();
                mp.start();
                t4 = SystemClock.uptimeMillis();
            } catch (Exception e) {
                Log.v(TAG, e.toString());
            }
            setDataSourceDuration = t2 - t1;
            prepareDuration = t3 - t2;
            startDuration = t4 - t3;
            totalSetDataTime = totalSetDataTime + setDataSourceDuration;
            totalPrepareTime = totalPrepareTime + prepareDuration;
            totalStartDuration = totalStartDuration + startDuration;
            mDB.execSQL("INSERT INTO perfdata (file, setdatatime, preparetime," +
                    " playtime) VALUES (" + '"' + testFile[k] + '"' + ',' +
                    setDataSourceDuration + ',' + prepareDuration +
            		',' + startDuration + ");");
            Log.v(TAG, "File name " + testFile[k]);
            mp.stop();
            mp.release();
        }
        Log.v(TAG, "setDataSource average " + totalSetDataTime / numberOfFiles);
        Log.v(TAG, "prepare average " + totalPrepareTime / numberOfFiles);
        Log.v(TAG, "start average " + totalStartDuration / numberOfFiles);

    }

    @Suppress
    public void testStartUpTime() throws Exception {
        createDB();
        audioPlaybackStartupTime(MediaNames.MP3FILES);
        audioPlaybackStartupTime(MediaNames.AACFILES);

        //close the database after all transactions
        if (mDB.isOpen()) {
            mDB.close();
        }
    }

    public void wmametadatautility(String[] testFile) {
        long t1 = 0;
        long t2 = 0;
        long sum = 0;
        long duration = 0;
        MediaMetadataRetriever retriever = new MediaMetadataRetriever();
        String value;
        for (int i = 0, n = testFile.length; i < n; ++i) {
            try {
                t1 = SystemClock.uptimeMillis();
                retriever.setDataSource(testFile[i]);
                value = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_ALBUM);
                value = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_ARTIST);
                value = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_COMPOSER);
                value = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_GENRE);
                value = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_TITLE);
                value = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_YEAR);
                value =
                    retriever
                    .extractMetadata(MediaMetadataRetriever.METADATA_KEY_CD_TRACK_NUMBER);
                t2 = SystemClock.uptimeMillis();
                duration = t2 - t1;
                Log.v(TAG, "Time taken = " + duration);
                sum = sum + duration;
            } catch (Exception e) {
                Log.v(TAG, e.getMessage());
            }

        }
        Log.v(TAG, "Average duration = " + sum / testFile.length);
    }

    private void initializeMessageLooper() {
        final ConditionVariable startDone = new ConditionVariable();
        new Thread() {
            @Override
            public void run() {
                Looper.prepare();
                Log.v(TAG, "start loopRun");
                mLooper = Looper.myLooper();
                mCamera = Camera.open();
                startDone.open();
                Looper.loop();
                Log.v(TAG, "initializeMessageLooper: quit.");
            }
        }.start();

        if (!startDone.block(WAIT_FOR_COMMAND_TO_COMPLETE)) {
            fail("initializeMessageLooper: start timeout");
        }
    }

    private void terminateMessageLooper() throws Exception {
        mLooper.quit();
        // Looper.quit() is asynchronous. The looper may still has some
        // preview callbacks in the queue after quit is called. The preview
        // callback still uses the camera object (setHasPreviewCallback).
        // After camera is released, RuntimeException will be thrown from
        // the method. So we need to join the looper thread here.
        mLooper.getThread().join();
        mCamera.release();
    }

    private final class RawPreviewCallback implements PreviewCallback {
        public void onPreviewFrame(byte[] rawData, Camera camera) {
            mPreviewDone.open();
        }
    }

    private void waitForPreviewDone() {
        if (!mPreviewDone.block(WAIT_FOR_COMMAND_TO_COMPLETE)) {
            Log.v(TAG, "waitForPreviewDone: timeout");
        }
        mPreviewDone.close();
    }

    public void stressCameraPreview() {
        for (int i = 0; i < NUM_PLAYBACk_IN_EACH_LOOP; i++) {
            try {
                initializeMessageLooper();
                mCamera.setPreviewCallback(mRawPreviewCallback);
                mSurfaceHolder = MediaFrameworkTest.mSurfaceView.getHolder();
                mCamera.setPreviewDisplay(mSurfaceHolder);
                mCamera.startPreview();
                waitForPreviewDone();
                Thread.sleep(1000);
                mCamera.stopPreview();
                terminateMessageLooper();
            } catch (Exception e) {
                Log.v(TAG, e.toString());
            }
        }
    }

    // Note: This test is to assume the mediaserver's pid is 34
    public void mediaStressPlayback(String testFilePath) {
        for (int i = 0; i < NUM_PLAYBACk_IN_EACH_LOOP; i++) {
            MediaPlayer mp = new MediaPlayer();
            try {
                mp.setDataSource(testFilePath);
                mp.setDisplay(MediaFrameworkTest.mSurfaceView.getHolder());
                mp.prepare();
                mp.start();
                Thread.sleep(MEDIA_STRESS_WAIT_TIME);
                mp.release();
            } catch (Exception e) {
                mp.release();
                Log.v(TAG, e.toString());
            }
        }
    }

    // Note: This test is to assume the mediaserver's pid is 34
    private void stressVideoRecord(int frameRate, int width, int height, int videoFormat,
            int outFormat, String outFile, boolean videoOnly) {
        // Video recording
        for (int i = 0; i < NUM_PLAYBACk_IN_EACH_LOOP; i++) {
            MediaRecorder mRecorder = new MediaRecorder();
            try {
                if (!videoOnly) {
                    Log.v(TAG, "setAudioSource");
                    mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
                }
                mRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
                mRecorder.setOutputFormat(outFormat);
                Log.v(TAG, "output format " + outFormat);
                mRecorder.setOutputFile(outFile);
                mRecorder.setVideoFrameRate(frameRate);
                mRecorder.setVideoSize(width, height);
                Log.v(TAG, "setEncoder");
                mRecorder.setVideoEncoder(videoFormat);
                if (!videoOnly) {
                    mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
                }
                mSurfaceHolder = MediaFrameworkTest.mSurfaceView.getHolder();
                mRecorder.setPreviewDisplay(mSurfaceHolder.getSurface());
                mRecorder.prepare();
                mRecorder.start();
                Thread.sleep(MEDIA_STRESS_WAIT_TIME);
                mRecorder.stop();
                mRecorder.release();
            } catch (Exception e) {
                Log.v("record video failed ", e.toString());
                mRecorder.release();
            }
        }
    }

    public void stressAudioRecord(String filePath) {
        // This test is only for the short media file
        for (int i = 0; i < NUM_PLAYBACk_IN_EACH_LOOP; i++) {
            MediaRecorder mRecorder = new MediaRecorder();
            try {
                mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
                mRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
                mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
                mRecorder.setOutputFile(filePath);
                mRecorder.prepare();
                mRecorder.start();
                Thread.sleep(MEDIA_STRESS_WAIT_TIME);
                mRecorder.stop();
                mRecorder.release();
            } catch (Exception e) {
                Log.v(TAG, e.toString());
                mRecorder.release();
            }
        }
    }

    //Write the ps output to the file
    public void getMemoryWriteToLog(Writer output, int writeCount) {
        String memusage = null;
        try {
            if (writeCount == 0) {
                mStartMemory = getMediaserverVsize();
                output.write("Start memory : " + mStartMemory + "\n");
            }
            memusage = captureMediaserverInfo();
            output.write(memusage);
            if (writeCount == NUM_STRESS_LOOP - 1) {
                mEndMemory = getMediaserverVsize();
                output.write("End Memory :" + mEndMemory + "\n");
            }
        } catch (Exception e) {
            e.toString();
        }
    }

    public String captureMediaserverInfo() {
        String cm = "ps mediaserver";
        String memoryUsage = null;

        int ch;
        try {
            Process p = Runtime.getRuntime().exec(cm);
            InputStream in = p.getInputStream();
            StringBuffer sb = new StringBuffer(512);
            while ((ch = in.read()) != -1) {
                sb.append((char) ch);
            }
            memoryUsage = sb.toString();
        } catch (IOException e) {
            Log.v(TAG, e.toString());
        }
        String[] poList = memoryUsage.split("\r|\n|\r\n");
        String memusage = poList[1].concat("\n");
        return memusage;
    }

    public int getMediaserverPid(){
        String memoryUsage = null;
        int pidvalue = 0;
        memoryUsage = captureMediaserverInfo();
        String[] poList2 = memoryUsage.split("\t|\\s+");
        String pid = poList2[1];
        pidvalue = Integer.parseInt(pid);
        Log.v(TAG, "PID = " + pidvalue);
        return pidvalue;
    }

    public int getMediaserverVsize(){
        String memoryUsage = captureMediaserverInfo();
        String[] poList2 = memoryUsage.split("\t|\\s+");
        String vsize = poList2[3];
        int vsizevalue = Integer.parseInt(vsize);
        Log.v(TAG, "VSIZE = " + vsizevalue);
        return vsizevalue;
    }

    public boolean validateMemoryResult(int startPid, int startMemory, Writer output, int limit)
            throws Exception {
        // Wait for 10 seconds to make sure the memory settle.
        Thread.sleep(10000);
        mEndPid = getMediaserverPid();
        int memDiff = mEndMemory - startMemory;
        if (memDiff < 0) {
            memDiff = 0;
        }
        output.write("The total diff = " + memDiff);
        output.write("\n\n");
        // mediaserver crash
        if (startPid != mEndPid) {
            output.write("mediaserver died. Test failed\n");
            return false;
        }
        // memory leak greter than the tolerant
        if (memDiff > limit) return false;
        return true;
    }

    @Suppress
    public void testWmaParseTime() throws Exception {
        // createDB();
        wmametadatautility(MediaNames.WMASUPPORTED);
    }


    // Test case 1: Capture the memory usage after every 20 h263 playback
    @LargeTest
    public void testH263VideoPlaybackMemoryUsage() throws Exception {
        boolean memoryResult = false;
        mStartPid = getMediaserverPid();

        File h263MemoryOut = new File(MEDIA_MEMORY_OUTPUT);
        Writer output = new BufferedWriter(new FileWriter(h263MemoryOut, true));
        output.write("H263 Video Playback Only\n");
        for (int i = 0; i < NUM_STRESS_LOOP; i++) {
            mediaStressPlayback(MediaNames.VIDEO_HIGHRES_H263);
            getMemoryWriteToLog(output, i);
        }
        output.write("\n");
        memoryResult = validateMemoryResult(mStartPid, mStartMemory, output, DECODER_LIMIT);
        output.close();
        assertTrue("H263 playback memory test", memoryResult);
    }

    // Test case 2: Capture the memory usage after every 20 h264 playback
    @LargeTest
    public void testH264VideoPlaybackMemoryUsage() throws Exception {
        boolean memoryResult = false;
        mStartPid = getMediaserverPid();

        File h264MemoryOut = new File(MEDIA_MEMORY_OUTPUT);
        Writer output = new BufferedWriter(new FileWriter(h264MemoryOut, true));
        output.write("H264 Video Playback only\n");
        for (int i = 0; i < NUM_STRESS_LOOP; i++) {
            mediaStressPlayback(MediaNames.VIDEO_H264_AMR);
            getMemoryWriteToLog(output, i);
        }
        output.write("\n");
        memoryResult = validateMemoryResult(mStartPid, mStartMemory, output, DECODER_LIMIT);
        output.close();
        assertTrue("H264 playback memory test", memoryResult);
    }

    // Test case 3: Capture the memory usage after each 20 WMV playback
    @LargeTest
    public void testWMVVideoPlaybackMemoryUsage() throws Exception {
        boolean memoryResult = false;
        if (MediaProfileReader.getWMVEnable()){
            mStartPid = getMediaserverPid();
            File wmvMemoryOut = new File(MEDIA_MEMORY_OUTPUT);
            Writer output = new BufferedWriter(new FileWriter(wmvMemoryOut, true));
            output.write("WMV video playback only\n");
            for (int i = 0; i < NUM_STRESS_LOOP; i++) {
                mediaStressPlayback(MediaNames.VIDEO_WMV);
                getMemoryWriteToLog(output, i);
            }
            output.write("\n");
            memoryResult = validateMemoryResult(mStartPid, mStartMemory, output, DECODER_LIMIT);
            output.close();
            assertTrue("wmv playback memory test", memoryResult);
        }
    }

    // Test case 4: Capture the memory usage after every 20 video only recorded
    @LargeTest
    public void testH263RecordVideoOnlyMemoryUsage() throws Exception {
        boolean memoryResult = false;
        mStartPid = getMediaserverPid();

        File videoH263RecordOnlyMemoryOut = new File(MEDIA_MEMORY_OUTPUT);
        Writer output = new BufferedWriter(new FileWriter(videoH263RecordOnlyMemoryOut, true));
        output.write("H263 video record only\n");
        for (int i = 0; i < NUM_STRESS_LOOP; i++) {
            stressVideoRecord(20, 352, 288, MediaRecorder.VideoEncoder.H263,
                    MediaRecorder.OutputFormat.MPEG_4, MediaNames.RECORDED_VIDEO_3GP, true);
            getMemoryWriteToLog(output, i);
        }
        output.write("\n");
        memoryResult = validateMemoryResult(mStartPid, mStartMemory, output, ENCODER_LIMIT);
        output.close();
        assertTrue("H263 record only memory test", memoryResult);
    }

    // Test case 5: Capture the memory usage after every 20 video only recorded
    @LargeTest
    public void testMpeg4RecordVideoOnlyMemoryUsage() throws Exception {
        boolean memoryResult = false;
        mStartPid = getMediaserverPid();

        File videoMp4RecordOnlyMemoryOut = new File(MEDIA_MEMORY_OUTPUT);
        Writer output = new BufferedWriter(new FileWriter(videoMp4RecordOnlyMemoryOut, true));
        output.write("MPEG4 video record only\n");
        for (int i = 0; i < NUM_STRESS_LOOP; i++) {
            stressVideoRecord(20, 352, 288, MediaRecorder.VideoEncoder.MPEG_4_SP,
                    MediaRecorder.OutputFormat.MPEG_4, MediaNames.RECORDED_VIDEO_3GP, true);
            getMemoryWriteToLog(output, i);
        }
        output.write("\n");
        memoryResult = validateMemoryResult(mStartPid, mStartMemory, output, ENCODER_LIMIT);
        output.close();
        assertTrue("mpeg4 record only memory test", memoryResult);
    }

    // Test case 6: Capture the memory usage after every 20 video and audio
    // recorded
    @LargeTest
    public void testRecordVidedAudioMemoryUsage() throws Exception {
        boolean memoryResult = false;
        mStartPid = getMediaserverPid();

        File videoRecordAudioMemoryOut = new File(MEDIA_MEMORY_OUTPUT);
        Writer output = new BufferedWriter(new FileWriter(videoRecordAudioMemoryOut, true));
        output.write("Audio and h263 video record\n");
        for (int i = 0; i < NUM_STRESS_LOOP; i++) {
            stressVideoRecord(20, 352, 288, MediaRecorder.VideoEncoder.H263,
                    MediaRecorder.OutputFormat.MPEG_4, MediaNames.RECORDED_VIDEO_3GP, false);
            getMemoryWriteToLog(output, i);
        }
        output.write("\n");
        memoryResult = validateMemoryResult(mStartPid, mStartMemory, output, ENCODER_LIMIT);
        output.close();
        assertTrue("H263 audio video record memory test", memoryResult);
    }

    // Test case 7: Capture the memory usage after every 20 audio only recorded
    @LargeTest
    public void testRecordAudioOnlyMemoryUsage() throws Exception {
        boolean memoryResult = false;
        mStartPid = getMediaserverPid();

        File audioOnlyMemoryOut = new File(MEDIA_MEMORY_OUTPUT);
        Writer output = new BufferedWriter(new FileWriter(audioOnlyMemoryOut, true));
        output.write("Audio record only\n");
        for (int i = 0; i < NUM_STRESS_LOOP; i++) {
            stressAudioRecord(MediaNames.RECORDER_OUTPUT);
            getMemoryWriteToLog(output, i);
        }
        output.write("\n");
        memoryResult = validateMemoryResult(mStartPid, mStartMemory, output, ENCODER_LIMIT);
        output.close();
        assertTrue("audio record only memory test", memoryResult);
    }

    // Test case 8: Capture the memory usage after every 20 camera preview
    @LargeTest
    public void testCameraPreviewMemoryUsage() throws Exception {
        boolean memoryResult = false;
        mStartPid = getMediaserverPid();

        File cameraPreviewMemoryOut = new File(MEDIA_MEMORY_OUTPUT);
        Writer output = new BufferedWriter(new FileWriter(cameraPreviewMemoryOut, true));
        output.write("Camera Preview Only\n");
        for (int i = 0; i < NUM_STRESS_LOOP; i++) {
            stressCameraPreview();
            getMemoryWriteToLog(output, i);
        }
        output.write("\n");
        memoryResult = validateMemoryResult(mStartPid, mStartMemory, output, CAMERA_LIMIT);
        output.close();
        assertTrue("camera preview memory test", memoryResult);
    }
}

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