Using MediaPlayer to play Video and Audio
/*
* 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.example.android.apis.media;
import android.app.Activity;
import android.content.Intent;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnBufferingUpdateListener;
import android.media.MediaPlayer.OnCompletionListener;
import android.media.MediaPlayer.OnPreparedListener;
import android.media.MediaPlayer.OnVideoSizeChangedListener;
import android.os.Bundle;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
class MediaPlayerDemo_Audio extends Activity {
private static final String TAG = "MediaPlayerDemo";
private MediaPlayer mMediaPlayer;
private static final String MEDIA = "media";
private static final int LOCAL_AUDIO = 1;
private static final int STREAM_AUDIO = 2;
private static final int RESOURCES_AUDIO = 3;
private static final int LOCAL_VIDEO = 4;
private static final int STREAM_VIDEO = 5;
private String path;
private TextView tx;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
tx = new TextView(this);
setContentView(tx);
Bundle extras = getIntent().getExtras();
playAudio(extras.getInt(MEDIA));
}
private void playAudio(Integer media) {
try {
switch (media) {
case LOCAL_AUDIO:
/**
* TODO: Set the path variable to a local audio file path.
*/
path = "";
if (path == "") {
// Tell the user to provide an audio file URL.
Toast.makeText(
MediaPlayerDemo_Audio.this,
"Please edit MediaPlayer_Audio Activity, "
+ "and set the path variable to your audio file path."
+ " Your audio file must be stored on sdcard.",
Toast.LENGTH_LONG).show();
}
mMediaPlayer = new MediaPlayer();
mMediaPlayer.setDataSource(path);
mMediaPlayer.prepare();
mMediaPlayer.start();
break;
case RESOURCES_AUDIO:
/**
* TODO: Upload a audio file to res/raw folder and provide its
* resid in MediaPlayer.create() method.
*/
mMediaPlayer = MediaPlayer.create(this, R.raw.test_cbr);//test_cbr.mp3
mMediaPlayer.start();
}
tx.setText("Playing audio...");
} catch (Exception e) {
Log.e(TAG, "error: " + e.getMessage(), e);
}
}
@Override
protected void onDestroy() {
super.onDestroy();
// TODO Auto-generated method stub
if (mMediaPlayer != null) {
mMediaPlayer.release();
mMediaPlayer = null;
}
}
}
class MediaPlayerDemo_Video extends Activity implements
OnBufferingUpdateListener, OnCompletionListener, OnPreparedListener,
OnVideoSizeChangedListener, SurfaceHolder.Callback {
private static final String TAG = "MediaPlayerDemo";
private int mVideoWidth;
private int mVideoHeight;
private MediaPlayer mMediaPlayer;
private SurfaceView mPreview;
private SurfaceHolder holder;
private String path;
private Bundle extras;
private static final String MEDIA = "media";
private static final int LOCAL_AUDIO = 1;
private static final int STREAM_AUDIO = 2;
private static final int RESOURCES_AUDIO = 3;
private static final int LOCAL_VIDEO = 4;
private static final int STREAM_VIDEO = 5;
private boolean mIsVideoSizeKnown = false;
private boolean mIsVideoReadyToBePlayed = false;
/**
*
* Called when the activity is first created.
*/
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.row);
mPreview = (SurfaceView) findViewById(R.id.surface);
holder = mPreview.getHolder();
holder.addCallback(this);
holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
extras = getIntent().getExtras();
}
private void playVideo(Integer Media) {
doCleanUp();
try {
switch (Media) {
case LOCAL_VIDEO:
/*
* TODO: Set the path variable to a local media file path.
*/
path = "";
if (path == "") {
// Tell the user to provide a media file URL.
Toast.makeText(
MediaPlayerDemo_Video.this,
"Please edit MediaPlayerDemo_Video Activity, "
+ "and set the path variable to your media file path."
+ " Your media file must be stored on sdcard.",
Toast.LENGTH_LONG).show();
}
break;
case STREAM_VIDEO:
/*
* TODO: Set path variable to progressive streamable mp4 or 3gpp
* format URL. Http protocol should be used. Mediaplayer can
* only play "progressive streamable contents" which basically
* means: 1. the movie atom has to precede all the media data
* atoms. 2. The clip has to be reasonably interleaved.
*/
path = "";
if (path == "") {
// Tell the user to provide a media file URL.
Toast.makeText(
MediaPlayerDemo_Video.this,
"Please edit MediaPlayerDemo_Video Activity,"
+ " and set the path variable to your media file URL.",
Toast.LENGTH_LONG).show();
}
break;
}
// Create a new media player and set the listeners
mMediaPlayer = new MediaPlayer();
mMediaPlayer.setDataSource(path);
mMediaPlayer.setDisplay(holder);
mMediaPlayer.prepare();
mMediaPlayer.setOnBufferingUpdateListener(this);
mMediaPlayer.setOnCompletionListener(this);
mMediaPlayer.setOnPreparedListener(this);
mMediaPlayer.setOnVideoSizeChangedListener(this);
mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
} catch (Exception e) {
Log.e(TAG, "error: " + e.getMessage(), e);
}
}
public void onBufferingUpdate(MediaPlayer arg0, int percent) {
Log.d(TAG, "onBufferingUpdate percent:" + percent);
}
public void onCompletion(MediaPlayer arg0) {
Log.d(TAG, "onCompletion called");
}
public void onVideoSizeChanged(MediaPlayer mp, int width, int height) {
Log.v(TAG, "onVideoSizeChanged called");
if (width == 0 || height == 0) {
Log.e(TAG, "invalid video width(" + width + ") or height(" + height
+ ")");
return;
}
mIsVideoSizeKnown = true;
mVideoWidth = width;
mVideoHeight = height;
if (mIsVideoReadyToBePlayed && mIsVideoSizeKnown) {
startVideoPlayback();
}
}
public void onPrepared(MediaPlayer mediaplayer) {
Log.d(TAG, "onPrepared called");
mIsVideoReadyToBePlayed = true;
if (mIsVideoReadyToBePlayed && mIsVideoSizeKnown) {
startVideoPlayback();
}
}
public void surfaceChanged(SurfaceHolder surfaceholder, int i, int j, int k) {
Log.d(TAG, "surfaceChanged called");
}
public void surfaceDestroyed(SurfaceHolder surfaceholder) {
Log.d(TAG, "surfaceDestroyed called");
}
public void surfaceCreated(SurfaceHolder holder) {
Log.d(TAG, "surfaceCreated called");
playVideo(extras.getInt(MEDIA));
}
@Override
protected void onPause() {
super.onPause();
releaseMediaPlayer();
doCleanUp();
}
@Override
protected void onDestroy() {
super.onDestroy();
releaseMediaPlayer();
doCleanUp();
}
private void releaseMediaPlayer() {
if (mMediaPlayer != null) {
mMediaPlayer.release();
mMediaPlayer = null;
}
}
private void doCleanUp() {
mVideoWidth = 0;
mVideoHeight = 0;
mIsVideoReadyToBePlayed = false;
mIsVideoSizeKnown = false;
}
private void startVideoPlayback() {
Log.v(TAG, "startVideoPlayback");
holder.setFixedSize(mVideoWidth, mVideoHeight);
mMediaPlayer.start();
}
}
public class Test extends Activity {
private Button mlocalvideo;
private Button mresourcesvideo;
private Button mstreamvideo;
private Button mlocalaudio;
private Button mresourcesaudio;
private Button mstreamaudio;
private static final String MEDIA = "media";
private static final int LOCAL_AUDIO = 1;
private static final int STREAM_AUDIO = 2;
private static final int RESOURCES_AUDIO = 3;
private static final int LOCAL_VIDEO = 4;
private static final int STREAM_VIDEO = 5;
private static final int RESOURCES_VIDEO = 6;
@Override
protected void onCreate(Bundle icicle) {
// TODO Auto-generated method stub
super.onCreate(icicle);
setContentView(R.layout.main);
mlocalaudio = (Button) findViewById(R.id.localaudio);
mlocalaudio.setOnClickListener(mLocalAudioListener);
mresourcesaudio = (Button) findViewById(R.id.resourcesaudio);
mresourcesaudio.setOnClickListener(mResourcesAudioListener);
mlocalvideo = (Button) findViewById(R.id.localvideo);
mlocalvideo.setOnClickListener(mLocalVideoListener);
mstreamvideo = (Button) findViewById(R.id.streamvideo);
mstreamvideo.setOnClickListener(mStreamVideoListener);
}
private OnClickListener mLocalAudioListener = new OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(Test.this.getApplication(),
MediaPlayerDemo_Audio.class);
intent.putExtra(MEDIA, LOCAL_AUDIO);
startActivity(intent);
}
};
private OnClickListener mResourcesAudioListener = new OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(Test.this.getApplication(),
MediaPlayerDemo_Audio.class);
intent.putExtra(MEDIA, RESOURCES_AUDIO);
startActivity(intent);
}
};
private OnClickListener mLocalVideoListener = new OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(Test.this,
MediaPlayerDemo_Video.class);
intent.putExtra(MEDIA, LOCAL_VIDEO);
startActivity(intent);
}
};
private OnClickListener mStreamVideoListener = new OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(Test.this,
MediaPlayerDemo_Video.class);
intent.putExtra(MEDIA, STREAM_VIDEO);
startActivity(intent);
}
};
}
//main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<Button android:id="@+id/localvideo"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:text="local_video"
/>
<Button android:id="@+id/streamvideo"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:text="stream_video"
/>
<Button android:id="@+id/localaudio"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:text="local_audio"
/>
<Button android:id="@+id/resourcesaudio"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:text="res_audio"
/>
</LinearLayout>
//row.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<SurfaceView android:id="@+id/surface"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center">
</SurfaceView>
</LinearLayout>
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