Java通过调用FFMPEG获取视频时长

FFmpeg version SVN-r10087, Copyright (c) 2000-2007 Fabrice Bellard, et al.
 configuration: --prefix=f:/svn_build_bins --enable-memalign-hack --enable-shared --disable-static --enable-w32threads --enable-liba52 --enable-avisynth --enable-libamr-nb --enable-libamr-wb --enable-libfaac --enable-libfaad --enable-libgsm --enable-libmp3lame --enable-libogg --enable-libtheora --enable-libvorbis --enable-libx264 --enable-gpl --extra-cflags=-I/usr/local/include --extra-ldflags=-L/usr/local/lib
 libavutil version: 49.5.0
 libavcodec version: 51.40.4
 libavformat version: 51.12.2
 built on Aug 12 2007 11:38:35, gcc: 4.2.1
 
 Compiled by msn: dev # fastreaming.com, 2007/08/12
 Enjoy it
 
Input #0, avi, from 'D:\MonitorRecord\monitor_20091222_050948_1.avi':
 Duration: 00:00:25.0, start: 0.000000, bitrate: 619 kb/s
 Stream #0.0: Video: mpeg4, yuv420p, 1620x1100, 1.14 fps(r)
Must supply at least one output file

/**
 * 获取视频总时间
 * @param viedo_path 视频路径
 * @param ffmpeg_path ffmpeg路径
 * @return
 */
 public static int getVideoTime(String video_path, String ffmpeg_path) {
 List<String> commands = new java.util.ArrayList<String>();
 commands.add(ffmpeg_path);
 commands.add("-i");
 commands.add(video_path);
 try {
 ProcessBuilder builder = new ProcessBuilder();
 builder.command(commands);
 final Process p = builder.start();
 
 //从输入流中读取视频信息
 BufferedReader br = new BufferedReader(new InputStreamReader(p.getErrorStream()));
 StringBuffer sb = new StringBuffer();
 String line = "";
 while ((line = br.readLine()) != null) {
 sb.append(line);
 }
 br.close();
 
 //从视频信息中解析时长
 String regexDuration = "Duration: (.*?), start: (.*?), bitrate: (\\d*) kb\\/s";
 Pattern pattern = Pattern.compile(regexDuration);
 Matcher m = pattern.matcher(sb.toString());
 if (m.find()) {
 int time = getTimelen(m.group(1));
 log.info(video_path+",视频时长："+time+", 开始时间："+m.group(2)+",比特率："+m.group(3)+"kb/s");
 return time;
 }
 } catch (Exception e) {
 e.printStackTrace();
 }
 
 return 0;
 }
 
 //格式:"00:00:10.68"
 private static int getTimelen(String timelen){
 int min=0;
 String strs[] = timelen.split(":");
 if (strs[0].compareTo("0") > 0) {
 min+=Integer.valueOf(strs[0])*60*60;//秒
 }
 if(strs[1].compareTo("0")>0){
 min+=Integer.valueOf(strs[1])*60;
 }
 if(strs[2].compareTo("0")>0){
 min+=Math.round(Float.valueOf(strs[2]));
 }
 return min;
}