Android视录视频示例及代码下载



本文一位Android开发工程师在做Android视频通话功能，从最简单的视频录制开始，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。

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这几天需要搞一个Android视频通话功能，从最简单的视频录制开始，网上例子大多不完整。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
Camera camera=Camera.open(); //在这个区间调用
camera.setDisplayOrientation(90);
camera.unlock();
 MediaRecorder.setCamera(camera);
            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>