Android自定义录制视频功能

android录制视频mediarecorder+surfaceview的使用方法，供大家参考，具体内容如下

先看效果图：

<1>将视频动画显示到surfaceview控件上
<2>使用mediarecorder类进行视频的录制

常用的方法：

  mediarecorder.reset();
  mediarecorder.setvideosource(mediarecorder.videosource.camera); //从照相机采集视频
  mediarecorder.setaudiosource(mediarecorder.audiosource.mic); 
  mediarecorder.setoutputformat(mediarecorder.outputformat.three_gpp);
  mediarecorder.setvideoframerate(3); //每秒3帧
  mediarecorder.setvideoencoder(mediarecorder.videoencoder.h263); //设置视频编码方式
  mediarecorder.setaudioencoder(mediarecorder.audioencoder.amr_nb);
  file videofile = new file(environment.getexternalstoragedirectory(), system.currenttimemillis()+".3gp");
  mediarecorder.setoutputfile(videofile.getabsolutepath());
  mediarecorder.setpreviewdisplay(surfaceview.getholder().getsurface());
  mediarecorder.prepare();//预期准备
  mediarecorder.start();//开始刻录
  mediarecorder.stop();//停止刻录

下面看代码：

public class mediarecorderactivity extends appcompatactivity {

  private surfaceview sv_mediarecorder_surface;
  private mediarecorder mediarecorder;
  private boolean isstartandstop=false;

  @override
  protected void oncreate(bundle savedinstancestate) {
    super.oncreate(savedinstancestate);
    if (build.version.sdk_int >= build.version_codes.kitkat) {
      getwindow().addflags(windowmanager.layoutparams.flag_translucent_status);
      getwindow().addflags(windowmanager.layoutparams.flag_translucent_navigation);
    }
    setcontentview(r.layout.activity_mediarecorder);
    //获取surfaceview
    sv_mediarecorder_surface = (surfaceview) findviewbyid(r.id.sv_mediarecorder_surface);
    //实例化媒体录制器
    mediarecorder = new mediarecorder();

  }
  //视频录制与暂停的方法
  public void startmediacorder(view view){
    button button= (button) view;
    if (!isstartandstop) {
      if (mediarecorder==null){
        //实例化媒体录制器
        mediarecorder = new mediarecorder();
      }
      mediarecorder.reset();
      mediarecorder.setvideosource(mediarecorder.videosource.camera); //从照相机采集视频
      mediarecorder.setaudiosource(mediarecorder.audiosource.mic);//设置麦克风
      //设置保存的格式
      mediarecorder.setoutputformat(mediarecorder.outputformat.mpeg_4);
      //设置编码格式
      mediarecorder.setvideoencoder(mediarecorder.videoencoder.h263);
      mediarecorder.setaudioencoder(mediarecorder.audioencoder.amr_nb);
      mediarecorder.setvideoframerate(3);
      //获取根路径
      string sdpath= environment.getexternalstoragedirectory().getabsolutepath();
      //设置保存的路径
      mediarecorder.setoutputfile(sdpath+"/taoge"+system.currenttimemillis()+".mp4");
      //将画面展示到surfaceview
      mediarecorder.setpreviewdisplay(sv_mediarecorder_surface.getholder().getsurface());
      //准备
      try {
        mediarecorder.prepare();
        mediarecorder.start();

      } catch (ioexception e) {
        e.printstacktrace();
      }
      button.settext("结束");
    }else{

      // 为其它应用释放摄像头
      mediarecorder.release();
      mediarecorder = null;
      //关闭
      button.settext("开始");
    }
    isstartandstop=!isstartandstop;
  }


}

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