android mediaplayer 播放流媒体 m3u8

最新推荐文章于 2023-03-19 21:58:07 发布

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分类专栏： android 文章标签： android layout menu exception video class

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本文介绍了一个简单的Android应用程序，用于播放在线视频。通过SurfaceView显示视频，并利用MediaPlayer进行视频播放控制。文章展示了如何设置布局文件、处理视频播放生命周期事件以及与用户界面交互。

1,activity_main.xml:

2.MainActivity

package com.xxexample.myvideodemo;

import java.io.IOException;

import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnBufferingUpdateListener;
import android.media.MediaPlayer.OnCompletionListener;
import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.support.v4.app.NavUtils;

public class MainActivity extends Activity   implements
OnBufferingUpdateListener, OnCompletionListener,
MediaPlayer.OnPreparedListener, SurfaceHolder.Callback {



   private MediaPlayer mediaPlayer;

   private SurfaceView surfaceView;

   private SurfaceHolder surfaceHolder;

   private int videoWidth;

   private int videoHeight;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        getActionBar().setDisplayHomeAsUpEnabled(true);


        this.surfaceView = (SurfaceView) this.findViewById(R.id.surface);
       this.surfaceHolder = this.surfaceView.getHolder();
       this.surfaceHolder.addCallback(this);
       this.surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
       Log.v("mplayer", ">>>create ok.");

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }


    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case android.R.id.home:
                NavUtils.navigateUpFromSameTask(this);
                return true;
        }
        return super.onOptionsItemSelected(item);
    }


    private void playVideo() throws IllegalArgumentException,
   IllegalStateException, IOException {
this.mediaPlayer = new MediaPlayer();

//这个是优酷视频：http://v.youku.com/player/getRealM3U8/vid/XNDUxNTYyNjI0/type//video.m3u8,它的id会根据时间而改变，所以有时测试失败，就是视频有效时间段过了(这东西困了我一天时间，哈哈)

下面代码中的视频是固定的，每次测试都成功：

String path3 = "http://mediamotiononline.ios.internapcdn.net/mediamotiononline/inapcms/CMS16042/flash/16042_adaptive2.mp4.m3u8";

this.mediaPlayer.setDataSource(path3);
this.mediaPlayer.setDisplay(this.surfaceHolder);
this.mediaPlayer.prepare();
this.mediaPlayer.start();

this.mediaPlayer.setOnBufferingUpdateListener(this);
this.mediaPlayer.setOnPreparedListener(this);
//this.mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
Log.v("mplayer", ">>>play video");
}

   public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) {
       // TODO Auto-generated method stub

   }

   public void surfaceCreated(SurfaceHolder arg0) {

       // TODO Auto-generated method stub

       try {
           this.playVideo();
       } catch (Exception e) {
           Log.e("mplayer", ">>>error", e);
       }
       Log.v("mplayer", ">>>surface created");
   }

   public void surfaceDestroyed(SurfaceHolder arg0) {
       // TODO Auto-generated method stub

   }

   public void onPrepared(MediaPlayer arg0) {
       // TODO Auto-generated method stub

       this.videoWidth = this.mediaPlayer.getVideoWidth();
       this.videoHeight = this.mediaPlayer.getVideoHeight();

       if (this.videoHeight != 0 && this.videoWidth != 0) {
           this.surfaceHolder.setFixedSize(this.videoWidth, this.videoHeight);
           this.mediaPlayer.start();
       }

   }

   public void onCompletion(MediaPlayer arg0) {
       // TODO Auto-generated method stub

   }

   public void onBufferingUpdate(MediaPlayer arg0, int arg1) {
       // TODO Auto-generated method stub

   }

}