android

Android录制视频

这几天需要搞Android,从视频录制开始,网上例子大多不完整,问题也比较古怪,简直焦头烂额啊,下面的示例参考过别人的代码，还是拿出来给需要的朋友分享下..

Activity类:VideoActivity

package com.media.Media;

import java.io.File;
import java.io.IOException;

import android.app.Activity;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.os.Environment;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class VideoActivity extends Activity {

    
    private File myRecAudioFile;
    private SurfaceView mSurfaceView;   
    private SurfaceHolder mSurfaceHolder; 
    private Button buttonStart;
    private Button buttonStop;
    private File dir;
    private MediaRecorder recorder;
    
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.video);
        mSurfaceView = (SurfaceView) findViewById(R.id.videoView);   
        mSurfaceHolder = mSurfaceView.getHolder();   
        mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 
        buttonStart=(Button)findViewById(R.id.start);
        buttonStop=(Button)findViewById(R.id.stop);
        File defaultDir = Environment.getExternalStorageDirectory();
        String path = defaultDir.getAbsolutePath()+File.separator+"V"+File.separator;//创建文件夹存放视频
        dir = new File(path);
        if(!dir.exists()){
        	dir.mkdir();
        }
        recorder = new MediaRecorder();
        
        buttonStart.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
            	recorder();
            }
        });
        
        buttonStop.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
	             recorder.stop();
	             recorder.reset();
	             recorder.release();
	             recorder=null;
            }
        });
    }
    
    
    
    public void recorder() {
        try {
            myRecAudioFile = File.createTempFile("video", ".3gp",dir);//创建临时文件
            recorder.setPreviewDisplay(mSurfaceHolder.getSurface());//预览
            recorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);//视频源
            recorder.setAudioSource(MediaRecorder.AudioSource.MIC); //录音源为麦克风
            recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);//输出格式为3gp
            recorder.setVideoSize(800, 480);//视频尺寸
            recorder.setVideoFrameRate(15);//视频帧频率
            recorder.setVideoEncoder(MediaRecorder.VideoEncoder.H263);//视频编码
            recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);//音频编码
            recorder.setMaxDuration(10000);//最大期限
            recorder.setOutputFile(myRecAudioFile.getAbsolutePath());//保存路径
            recorder.prepare();
            recorder.start();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

界面:video.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  	xmlns:android="http://schemas.android.com/apk/res/android"
  	android:orientation="vertical"
  	android:layout_width="fill_parent"
  	android:layout_height="fill_parent">  
	<SurfaceView android:id="@+id/videoView"
	    android:visibility="visible" 
	    android:layout_width="320px" 
	    android:layout_height="240px">
	</SurfaceView>
	
	<RelativeLayout
	  	android:layout_width="fill_parent"
	  	android:layout_height="wrap_content">  
		<Button
		  android:layout_width="wrap_content"
		  android:layout_height="wrap_content"
		  android:text="录制"
		  android:id="@+id/start"/>  
		<Button
		  android:layout_width="wrap_content"
		  android:layout_height="wrap_content"
		  android:layout_toRightOf="@id/start"
		  android:text="停止"
		  android:id="@+id/stop"/>  
	</RelativeLayout>
</LinearLayout>

权限配置:AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.media.Media"
      android:versionCode="1"
      android:versionName="1.0">
    <application android:icon="@drawable/rabbit" android:label="@string/app_name">
        <activity android:name=".VideoActivity"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
    
    <uses-sdk android:minSdkVersion="7" />
	<uses-permission android:name="android.permission.CAMERA"/>
	<uses-permission android:name="android.permission.RECORD_AUDIO"/>
	<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
</manifest> 

希望对需要的人有帮助，不罗嗦了,最后还是把整个工程拿出来...

评论

1 楼 kookob 2011-04-17  

回复个问题，还要去测验，我的god啊，那些问题真难，哈哈
本来是要说你牛B的哈