VideoThumbTaker.java
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package com.phxl.common.util;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class VideoThumbTaker {
static Log log = LogFactory.getLog(VideoThumbTaker.class);
protected String ffmpegApp;
public VideoThumbTaker(String ffmpegApp) {
this.ffmpegApp = ffmpegApp;
}
@SuppressWarnings("unused")
/****
* 获取指定时间内的图片
*
* @param videoFilename:视频路径
* @param thumbFilename:图片保存路径
* @param width:图片长
* @param height:图片宽
* @param hour:指定时
* @param min:指定分
* @param sec:指定秒
* @throws IOException
* @throws InterruptedException
*/
public void getThumb(String videoFilename, String thumbFilename, int width, int height, int hour, int min,
float sec) throws IOException, InterruptedException {
ProcessBuilder processBuilder = new ProcessBuilder(ffmpegApp, "-y", "-i", videoFilename, "-vframes", "1", "-ss",
hour + ":" + min + ":" + sec, "-f", "mjpeg", "-s", width + "*" + height, "-an", thumbFilename);
Process process = processBuilder.start();
InputStream stderr = process.getErrorStream();
InputStreamReader isr = new InputStreamReader(stderr);
BufferedReader br = new BufferedReader(isr);
String line;
while ((line = br.readLine()) != null)
;
process.waitFor();
if (br != null)
br.close();
if (isr != null)
isr.close();
if (stderr != null)
stderr.close();
}
/****
* 获取指定时间内的图片
*
* @param ffmpeg:ffmpeg插件路径
* @param localMp4:本地mp4保存路径
* @param localMp4Img:本地mp4图片保存路径
* @throws IOException
* @throws InterruptedException
*/
public static void getVidioImg(String ffmpeg,String localMp4,String localMp4Img) throws Exception{
VideoThumbTaker videoThumbTaker = new VideoThumbTaker(ffmpeg);
videoThumbTaker.getThumb(localMp4, localMp4Img, 800,600, 0, 0, 0.5f);
}
/**
* 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) {
log.error("获取音频时长失败:"+e);
}
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;
}
//测试方法
public static void main(String[] args) {
String ffmpegPath = "D:\\software\\ffmpeg\\bin\\ffmpeg.exe";
//VideoThumbTaker videoThumbTaker = new VideoThumbTaker("D:\\software\\ffmpeg\\bin\\ffmpeg.exe");
try {
/*videoThumbTaker.getThumb("D:\\videoMp4sLoc\\114265ef-beb6-437f-9015-2e9af8fa2b9a.mp4", "D:\\thumbTest222.png", 800,600, 0, 0, 1);
System.out.println("over");*/
System.out.println(getVideoTime("D:\\jpg\\22.mp3",ffmpegPath));
} catch (Exception e) {
e.printStackTrace();
}
}
}