java 视频格式转换-ffmpeg

import java.util.ArrayList; import java.util.List; import com.crm.util.common.PropertyUtil; public class ConvertVideo { //输出视频地址 private static String inputPath = ""; //输出视频地址(本地配置) private static String outputPath = PropertyUtil.VIDEO_STORAGE_LOCATION; //所在位置(本地配置) private static String ffmpegPath = PropertyUtil.VIDEO_FFMPEG_STORAGE_LOCATION; public static String process(String path, String name) { //转换后返回文件名 return processVedio(path,name); } // ffmpeg能解析的格式：（asx，asf，mpg，wmv，3gp，mp4，mov，avi，flv等） private static String processVedio(String path, String name) { List<String> command = new ArrayList<String>(); command.add(ffmpegPath + "ffmpeg"); command.add("-i"); command.add(path+"/"+name);//输入文件路径 command.add("-ab"); command.add("56"); command.add("-ar"); command.add("22050"); command.add("-qscale"); command.add("8"); command.add("-r"); command.add("15"); command.add("-s"); command.add("720x480"); //分辨率 name = name.substring(0, name.lastIndexOf(".")) + ".mp4"; path = path +"/"+ name ; command.add(path); //输入文件路径 try { Process videoProcess = new ProcessBuilder(command).redirectErrorStream(true).start(); new PrintStream(videoProcess.getErrorStream()).start(); new PrintStream(videoProcess.getInputStream()).start(); videoProcess.waitFor(); return name; } catch (Exception e) { e.printStackTrace(); return null; } } } class PrintStream extends Thread { java.io.InputStream __is = null; public PrintStream(java.io.InputStream is) { __is = is; } public void run() { try { while (this != null) { int _ch = __is.read(); if (_ch != -1) System.out.print((char) _ch); else break; } } catch (Exception e) { e.printStackTrace(); } } }