java 实现视频转换通用工具类：视频加水印-通过Avs文件添加视频水印（五-2）

/*** ffmpeg通过Avs文件添加视频水印* @param avsPath avs文件路径* @param tarVideoPath 视频文件(新)* @return*/public static boolean processFfmpegWmByAvs(String srcAvsPath,String tarVideoPath) {  if (!checkfile(srcAvsPath)) {  logger.error("【" + srcAvsPath + "】  不存在 !"); return false;  }  //如果父目录不存在就创建一个tarVideoPath = BaseCommonUtil.replaceFliePathStr(tarVideoPath);BaseCommonUtil.mkdir(tarVideoPath.substring(0,tarVideoPath.lastIndexOf("/")));List<String> commend = new java.util.ArrayList<String>();  commend.add(ffmpegPath);commend.add("-y");  commend.add("-i");  commend.add(srcAvsPath);commend.add(tarVideoPath);  try {  ProcessBuilder builder = new ProcessBuilder(); builder.command(commend); Process process = builder.start(); doWaitFor(process);  process.destroy(); if (!checkfile(tarVideoPath)) {  logger.error("【" + srcAvsPath + "】 processFfmpegWmByAvs 视频添加水印不成功 !");return false;  }  return true;  } catch (Exception e) {  logger.error("【" + srcAvsPath + "】processFfmpegWmByAvs  视频添加水印不成功 !");return false;  }  }  

/*** 生成Avs文件* @param srcPath  视频路径* @param tarAvsPath* @param waterMarkPath 水印图片路径* @param x* @param y* @param alpha* @return*/public static boolean createAvsFile(String srcPath,String tarAvsPath,String waterMarkPath,int x,int y, float alpha){if(!checkfile(srcPath)){   logger.error("【" + srcPath + "】  视频文件不存在 !"); return false;   } if(!checkfile(waterMarkPath)){   logger.error("【" + waterMarkPath + "】  水印图片不存在 !"); return false;   } PrintWriter out=null;  try {//  这里设置avs文件的存放路径以及文件名try {StringBuffer n=new StringBuffer();n.append("video").append("=").append(" DirectShowSource ").append("(\"").append(srcPath).append("\")").append("\n");n.append("logo").append("=").append(" ImageSource ").append("(\"").append(waterMarkPath).append("\")").append("\n");n.append("logomask").append("=").append(" ImageSource ").append("(\"").append(waterMarkPath).append("\")").append("\n");//overlay参数n.append("overlay");n.append("(");n.append("video").append(","); //videon.append("logo").append(",");  //logon.append("mask=logomask").append(",");  //maskn.append("y=").append(y).append(",");  //水印的纵坐标 yn.append("x=").append(x).append(",");  //水印的水平坐标  xn.append("mode=\"blend\"").append(",");  //水印模式：opacityn.append("opacity=").append(alpha);  //水印透明度n.append(")");n.append("\n");out = new PrintWriter(new File(tarAvsPath));out.print(n.toString());       return true;} catch (FileNotFoundException e) {logger.error("创建【" + srcPath + "】createAvsFile  AVS文件不成功 !");return false;  }} finally {if(out != null){out.close();}}}