MJPEG视频如何转成JPEG或在android上播放, 没做过视频处理
     byte[]videoBytes = getBytes(videoBuff,packageLength);
     backbitmap =BitmapFactory.decodeByteArray(videoBytes, 0, videoBytes.length);
     if(backbitmap!=null)
     {
        Rect localRect1 = new Rect(0, 0, this.backbitmap.getWidth(), this.backbitmap.getHeight());
        Rect localRect2 = new Rect(0, 0, 640, 480);
        Canvas canvas  = this.mSurfaceHolder.lockCanvas(null);
        canvas.drawBitmap(this.backbitmap, localRect1, localRect2, null);
     mSurfaceview.draw(canvas);
     }
videoBuff 是对方通过udp传过来的祼码流,没有jpeg头尾,转换时backbitmap这个怎么总是为空,这个mjpeg还需要解码什么的吗?