Android example source code file (MediaPlayerStressTest.java)

This example Android source code file (MediaPlayerStressTest.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, camera, currentposition, exception, largetest, media, mediaplayer, mediaplayerstresstest, mediarecorder, number_of_random_reposition_and_play_short, number_of_stress_loops, photo, playback_end_tolerance, playtime, random, seek, sound, surfaceholder, test, video

The MediaPlayerStressTest.java Android example source code

/*
 * 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.mediaframeworktest.stress;

import com.android.mediaframeworktest.MediaFrameworkTest;

import android.hardware.Camera;
import android.media.MediaPlayer;
import android.media.MediaRecorder;
import android.test.ActivityInstrumentationTestCase2;
import android.test.suitebuilder.annotation.LargeTest;
import android.util.Log;
import android.view.SurfaceHolder;

import com.android.mediaframeworktest.MediaNames;

import java.util.Random;

/**
 * Junit / Instrumentation test case for the media player
 */
public class MediaPlayerStressTest extends ActivityInstrumentationTestCase2<MediaFrameworkTest> {    
    private String TAG = "MediaPlayerStressTest";
    private MediaRecorder mRecorder;
    private Camera mCamera;

    private static final int NUMBER_OF_RANDOM_REPOSITION_AND_PLAY = 10;
    private static final int NUMBER_OF_RANDOM_REPOSITION_AND_PLAY_SHORT = 5;
    private static final int NUMBER_OF_STRESS_LOOPS = 500;
    private static final int PLAYBACK_END_TOLERANCE = 30000;
    private static final int WAIT_UNTIL_PLAYBACK_FINISH = 515000 ;

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

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

    @LargeTest
    public void testStressHWDecoderRelease() throws Exception {
        SurfaceHolder mSurfaceHolder;
        long randomseed = System.currentTimeMillis(); 
        Random generator = new Random(randomseed);
        Log.v(TAG, "Random seed: " + randomseed);
        int video_duration = MediaNames.STREAM_H264_480_360_1411k_DURATION;
        int random_play_time;

        mSurfaceHolder = MediaFrameworkTest.mSurfaceView.getHolder();
        try {
            assertTrue(MediaFrameworkTest.checkStreamingServer());
            for (int i = 0; i < NUMBER_OF_STRESS_LOOPS; i++) {
                MediaPlayer mp = new MediaPlayer();
                mp.setDataSource(MediaNames.STREAM_H264_480_360_1411k);
                mp.setDisplay(MediaFrameworkTest.mSurfaceView.getHolder());
                mp.prepare();
                mp.start();
                // seek and play
                for (int j = 0; j < generator.nextInt(10); j++) {
                    random_play_time =
                        generator.nextInt(MediaNames.STREAM_H264_480_360_1411k_DURATION / 2);
                    Log.v(TAG, "Play time = " + random_play_time);
                    Thread.sleep(random_play_time);
                    int seek_time = MediaNames.STREAM_H264_480_360_1411k_DURATION / 2;
                    Log.v(TAG, "Seek time = " + seek_time);
                    mp.seekTo(seek_time);
                }
                mp.release();
            }

        } catch (Exception e) {
            Log.v(TAG, e.toString());
            assertTrue("testStressHWDecoderRelease", false);
        }
    }

    @LargeTest
    public void testStressGetCurrentPosition() throws Exception {
        SurfaceHolder mSurfaceHolder;
        long randomseed = System.currentTimeMillis(); 
        Random generator = new Random(randomseed);
        Log.v(TAG, "Random seed: " + randomseed);
        int video_duration = MediaNames.VIDEO_H263_AMR_DURATION;
        int random_play_time = 0;
        int random_seek_time = 0;
        int random_no_of_seek = 0;

        mSurfaceHolder = MediaFrameworkTest.mSurfaceView.getHolder();
        try {
            for (int i = 0; i < NUMBER_OF_STRESS_LOOPS; i++) {
                MediaPlayer mp = new MediaPlayer();
                mp.setDataSource(MediaNames.VIDEO_H263_AMR);
                mp.setDisplay(MediaFrameworkTest.mSurfaceView.getHolder());
                mp.prepare();
                mp.start();
                random_no_of_seek = generator.nextInt(10);
                // make sure the seek at least run once.
                if (random_no_of_seek == 0) {
                    random_no_of_seek = 1;
                }
                Log.v(TAG, "random_seek = " + random_no_of_seek);
                // Play for 10 seconds then random seekTo
                for (int j = 0; j < random_no_of_seek; j++) {
                    random_play_time =
                        generator.nextInt(video_duration / 100);
                    Log.v(TAG, "Play time = " + random_play_time);
                    Thread.sleep(random_play_time);
                    random_seek_time =
                        generator.nextInt(video_duration / 2);
                    Log.v(TAG, "Seek time = " + random_seek_time);
                    mp.seekTo(random_seek_time);
                }
                //Seek to 10s from the end of the video
                mp.seekTo(video_duration - 10000);
                //After reposition, play 30 seconds the video should be finished.
                Thread.sleep(PLAYBACK_END_TOLERANCE);
                Log.v(TAG, "CurrentPosition = " + mp.getCurrentPosition());
                if ( mp.isPlaying() || mp.getCurrentPosition()
                        > (video_duration)){
                    assertTrue("Current PlayTime greater than duration", false);
                }
                mp.release();
            }

        } catch (Exception e) {
            Log.v(TAG, e.toString());
            assertTrue("testStressGetCurrentPosition", false);
        }
    }
}