Android 中使用MediaRecorder进行录像详解（视频录制） (转)

在这里给出自己的一个测试DEMO，里面注释很详细。简单的视频录制功能.

package com.video;    import java.io.IOException;    import android.app.Activity;  import android.content.pm.ActivityInfo;  import android.graphics.PixelFormat;  import android.media.MediaRecorder;  import android.os.Bundle;  import android.view.SurfaceHolder;  import android.view.SurfaceView;  import android.view.View;  import android.view.View.OnClickListener;  import android.view.Window;  import android.view.WindowManager;  import android.widget.Button;    /**  * class name：TestBasicVideo<BR>  * class description：一个简单的录制视频例子<BR>  * PS：实现基本的录制保存文件 <BR>  *   * @version 1.00 2011/09/21  * @author CODYY)peijiangping  */  public class TestBasicVideo extends Activity implements SurfaceHolder.Callback {      private Button start;// 开始录制按钮       private Button stop;// 停止录制按钮       private MediaRecorder mediarecorder;// 录制视频的类       private SurfaceView surfaceview;// 显示视频的控件       // 用来显示视频的一个接口，我靠不用还不行，也就是说用mediarecorder录制视频还得给个界面看       // 想偷偷录视频的同学可以考虑别的办法。。嗯需要实现这个接口的Callback接口       private SurfaceHolder surfaceHolder;        public void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);          requestWindowFeature(Window.FEATURE_NO_TITLE);// 去掉标题栏           getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,                  WindowManager.LayoutParams.FLAG_FULLSCREEN);// 设置全屏           // 设置横屏显示           setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);          // 选择支持半透明模式,在有surfaceview的activity中使用。           getWindow().setFormat(PixelFormat.TRANSLUCENT);          setContentView(R.layout.main);          init();      }        private void init() {          start = (Button) this.findViewById(R.id.start);          stop = (Button) this.findViewById(R.id.stop);          start.setOnClickListener(new TestVideoListener());          stop.setOnClickListener(new TestVideoListener());          surfaceview = (SurfaceView) this.findViewById(R.id.surfaceview);          SurfaceHolder holder = surfaceview.getHolder();// 取得holder           holder.addCallback(this); // holder加入回调接口           // setType必须设置，要不出错.           holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);      }        class TestVideoListener implements OnClickListener {            @Override          public void onClick(View v) {              if (v == start) {                  mediarecorder = new MediaRecorder();// 创建mediarecorder对象                   // 设置录制视频源为Camera(相机)                   mediarecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);                  // 设置录制完成后视频的封装格式THREE_GPP为3gp.MPEG_4为mp4                   mediarecorder                          .setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);                  // 设置录制的视频编码h263 h264                   mediarecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);                  // 设置视频录制的分辨率。必须放在设置编码和格式的后面，否则报错                   mediarecorder.setVideoSize(176, 144);                  // 设置录制的视频帧率。必须放在设置编码和格式的后面，否则报错                   mediarecorder.setVideoFrameRate(20);                  mediarecorder.setPreviewDisplay(surfaceHolder.getSurface());                  // 设置视频文件输出的路径                   mediarecorder.setOutputFile("/sdcard/love.3gp");                  try {                      // 准备录制                       mediarecorder.prepare();                      // 开始录制                       mediarecorder.start();                  } catch (IllegalStateException e) {                      // TODO Auto-generated catch block                       e.printStackTrace();                  } catch (IOException e) {                      // TODO Auto-generated catch block                       e.printStackTrace();                  }              }              if (v == stop) {                  if (mediarecorder != null) {                      // 停止录制                       mediarecorder.stop();                      // 释放资源                       mediarecorder.release();                      mediarecorder = null;                  }              }            }        }        @Override      public void surfaceChanged(SurfaceHolder holder, int format, int width,              int height) {          // 将holder，这个holder为开始在oncreat里面取得的holder，将它赋给surfaceHolder           surfaceHolder = holder;      }        @Override      public void surfaceCreated(SurfaceHolder holder) {          // 将holder，这个holder为开始在oncreat里面取得的holder，将它赋给surfaceHolder           surfaceHolder = holder;      }        @Override      public void surfaceDestroyed(SurfaceHolder holder) {          // surfaceDestroyed的时候同时对象设置为null           surfaceview = null;          surfaceHolder = null;          mediarecorder = null;      }  }  

main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"      android:layout_width="fill_parent"      android:layout_height="fill_parent"      android:orientation="horizontal" >        <LinearLayout          android:layout_width="fill_parent"          android:layout_height="fill_parent"          android:layout_weight="1" >            <SurfaceView              android:id="@+id/surfaceview"              android:layout_width="fill_parent"              android:layout_height="fill_parent" />      </LinearLayout>        <LinearLayout          android:layout_width="fill_parent"          android:layout_height="fill_parent"          android:layout_weight="4"          android:gravity="center"          android:orientation="vertical" >            <Button              android:id="@+id/start"              android:layout_width="fill_parent"              android:layout_height="wrap_content"              android:layout_weight="1"              android:text="Start" />            <Button              android:id="@+id/stop"              android:layout_width="fill_parent"              android:layout_height="wrap_content"              android:layout_weight="1"              android:text="Stop" />      </LinearLayout>    </LinearLayout>  

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>  <manifest xmlns:android="http://schemas.android.com/apk/res/android"      package="com.video"      android:versionCode="1"      android:versionName="1.0" >        <application          android:icon="@drawable/icon"          android:label="@string/app_name" >          <activity              android:label="@string/app_name"              android:name=".TestBasicVideo" >              <intent-filter >                  <action android:name="android.intent.action.MAIN" />                    <category android:name="android.intent.category.LAUNCHER" />              </intent-filter>          </activity>      </application>        <uses-sdk android:minSdkVersion="8" />        <uses-permission android:name="android.permission.CAMERA" >      </uses-permission>      <uses-permission android:name="android.permission.RECORD_AUDIO" >      </uses-permission>      <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" >      </uses-permission>    </manifest>