surfaceview+MediaRecorder 视频录制压缩

• （Android）项目中用到了MediaRecorder进行视频的录制，但是做的过程中不知是我的代码问题还是mui本身的问题 ，当我调用这个方法时mediarecorder.setPreviewDisplay(surfaceview.getHolder().getSurface());总是掉不出来，总是报错！

附上代码：
var ioOptions = plus.android.importClass('java.io.IOException');
var activityInfo = plus.android.importClass('android.content.pm.ActivityInfo');
var PixelFormat = plus.android.importClass('android.graphics.PixelFormat');
var Camera = plus.android.importClass('android.hardware.Camera');
var SurfaceView = plus.android.importClass('android.view.SurfaceView');
var MediaRecorder = plus.android.importClass('android.media.MediaRecorder');
var Bundle = plus.android.importClass('android.os.Bundle');
var SurfaceHolder = plus.android.implements('android.view.SurfaceHolder');
// var View = plus.android.importClass('android.view.View');
var LinearLayout = plus.android.importClass('android.widget.LinearLayout');
var Surface = plus.android.importClass('android.view.Surface');
var SurfaceTexture = plus.android.importClass('android.graphics.SurfaceTexture');

var main = plus.android.runtimeMainActivity();  
var view = new LinearLayout(main);  
    //设置布局参数  
var lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);  
console.log("1010101010" lp);  
view.setLayoutParams(lp);//设置布局参数  
console.log("2020202020");  
var surfaceview = new SurfaceView(main);  
 console.log("30303030" surfaceview);  
var linearParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT); //取控件surfaceview当前的布局参数  

console.log("4040404004" linearParams);
view.addView(surfaceview,linearParams);

main.setContentView(view);  

mediarecorder = new MediaRecorder();// 创建mediarecorder对象  

//设置摄像头以及摄像头的方向  
var CammeraIndex=FindBackCamera();//网上参考的一个函数，用来获取后置摄像头的info  
console.log("1111111111");  
var mCamera=Camera.open();  
console.log("222222222");  
mCamera.setDisplayOrientation(90);  
mCamera.unlock();  
console.log("33333");  

console.log(surfaceview);  
var SurfaceHolder = surfaceview.getHolder();// 取得holder  
console.log("4444444");  

// console.log(holder);
// holder.addCallback(main); // holder加入回调接口
// setType必须设置，要不出错.

mediarecorder.setCamera(mCamera);  

// 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(1280, 720);  
// 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);  
console.log("555555555555" surfaceview.getHolder());  

mediarecorder.setPreviewDisplay(surfaceview.getHolder().getSurface());  
console.log("66666666666" new Surface(new SurfaceTexture(0)));  
// 设置视频文件输出的路径  
mediarecorder.setOutputFile("/sdcard/love.3gp");  
console.log("777777777");  
// 准备录制  
mediarecorder.prepare();  
console.log("88888888888");  
// 开始录制  
mediarecorder.start();  
console.log("9999999999");