java调用FFmpeg及mencoder转换视频为FLV并截图

Conver.java
package com.ll19.flv;

public class Conver {

public void run() {
try {
// 转换并截图
String filePath = "D:\\video\\old\\test.avi";
ConverVideo cv = new ConverVideo(filePath);
cv.beginConver();

// 仅截图
// ProcessFlvImg pfi = new ProcessFlvImg();
// pfi.processImg("D:\\video\\old\\test.avi");

} catch (Exception e) {
e.printStackTrace();
}
}

public static void main(String args[]) {
Conver c = new Conver();
c.run();
}
}

ConverVideo.java
package com.ll19.flv;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.Date;
import java.util.List;

public class ConverVideo {

private Date dt;
private long begintime;
private String PATH;
private String filerealname; // 文件名 不包括扩展名
private String filename; // 包括扩展名
private String videofolder = "D:\\video\\other\\"; // 别的格式视频的目录
private String flvfolder = "D:\\video\\flv\\"; // flv视频的目录
private String ffmpegpath = "D:\\video\\FFmpeg\\bin\\ffmpeg.exe"; // ffmpeg.exe的目录
private String mencoderpath = "D:\\video\\mencoder\\"; // mencoder的目录
private String videoRealPath = "D:\\video\\flv\\"; // 截图的视频目录;
private String imageRealPath = "D:\\video\\img\\"; // 截图的存放目录

public ConverVideo() {
}

public ConverVideo(String path) {
PATH = path;
}

public String getPATH() {
return PATH;
}

public void setPATH(String path) {
PATH = path;
}

public boolean beginConver() {
File fi = new File(PATH);
filename = fi.getName();
filerealname = filename.substring(0, filename.lastIndexOf("."))
.toLowerCase();
System.out.println("----接收到文件(" + PATH
+ ")需要转换-------------------------- ");
if (!checkfile(PATH)) {
System.out.println(PATH + "文件不存在" + " ");
return false;
}
dt = new Date();
begintime = dt.getTime();
System.out
.println("----开始转文件(" + PATH + ")-------------------------- ");
if (process()) {
Date dt2 = new Date();
System.out.println("转换成功 ");
long endtime = dt2.getTime();
long timecha = (endtime - begintime);
String totaltime = sumTime(timecha);
System.out.println("共用了:" + totaltime + " ");
if (processImg()) {
System.out.println("截图成功了 ");
} else {
System.out.println("截图不成功了 ");
}
PATH = null;
return true;
} else {
PATH = null;
return false;
}
}

public boolean processImg() {

List commend = new java.util.ArrayList();
commend.add(ffmpegpath);
commend.add("-i");
commend.add(videoRealPath + filerealname + ".flv");
commend.add("-y");
commend.add("-f");
commend.add("image2");
commend.add("-ss");
commend.add("38");
commend.add("-t");
commend.add("0.001");
commend.add("-s");
commend.add("320x240");
commend.add(imageRealPath + filerealname + ".jpg");
try {
ProcessBuilder builder = new ProcessBuilder();
builder.command(commend);
builder.start();
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}

private boolean process() {
int type = checkContentType();
boolean status = false;
if (type == 0) {

// status = processFLV(PATH);// 直接将文件转为flv文件
status = processFLV(PATH);
} else if (type == 1) {
String avifilepath = processAVI(type);
if (avifilepath == null)
return false;
// avi文件没有得到
else {
System.out.println("kaishizhuang");
status = processFLV(avifilepath);// 将avi转为flv
}
}
return status;
}

private int checkContentType() {
String type = PATH.substring(PATH.lastIndexOf(".") + 1, PATH.length())
.toLowerCase();
// ffmpeg能解析的格式：（asx，asf，mpg，wmv，3gp，mp4，mov，avi，flv等）
if (type.equals("avi")) {
return 0;
} else if (type.equals("mpg")) {
return 0;
} else if (type.equals("wmv")) {
return 0;
} else if (type.equals("3gp")) {
return 0;
} else if (type.equals("mov")) {
return 0;
} else if (type.equals("mp4")) {
return 0;
} else if (type.equals("asf")) {
return 0;
} else if (type.equals("asx")) {
return 0;
} else if (type.equals("flv")) {
return 0;
}
// 对ffmpeg无法解析的文件格式(wmv9，rm，rmvb等),
// 可以先用别的工具（mencoder）转换为avi(ffmpeg能解析的)格式.
else if (type.equals("wmv9")) {
return 1;
} else if (type.equals("rm")) {
return 1;
} else if (type.equals("rmvb")) {
return 1;
}
return 9;
}

private boolean checkfile(String path) {
File file = new File(path);
if (!file.isFile()) {
return false;
} else {
return true;
}
}

// 对ffmpeg无法解析的文件格式(wmv9，rm，rmvb等), 可以先用别的工具（mencoder）转换为avi(ffmpeg能解析的)格式.
private String processAVI(int type) {
List commend = new java.util.ArrayList();
commend.add(mencoderpath);
commend.add(PATH);
commend.add("-oac");
commend.add("mp3lame");
commend.add("-lameopts");
commend.add("preset=64");
commend.add("-ovc");
commend.add("xvid");
commend.add("-xvidencopts");
commend.add("bitrate=600");
commend.add("-of");
commend.add("avi");
commend.add("-o");
commend.add(videofolder + filerealname + ".avi");
// 命令类型：mencoder 1.rmvb -oac mp3lame -lameopts preset=64 -ovc xvid
// -xvidencopts bitrate=600 -of avi -o rmvb.avi
try {
ProcessBuilder builder = new ProcessBuilder();
builder.command(commend);
Process p = builder.start();

doWaitFor(p);
return videofolder + filerealname + ".avi";
} catch (Exception e) {
e.printStackTrace();
return null;
}
}

// ffmpeg能解析的格式：（asx，asf，mpg，wmv，3gp，mp4，mov，avi，flv等）
private boolean processFLV(String oldfilepath) {

if (!checkfile(PATH)) {
System.out.println(oldfilepath + " is not file");
return false;
}

List commend = new java.util.ArrayList();
commend.add(ffmpegpath);
commend.add("-i");
commend.add(oldfilepath);
commend.add("-ab");
commend.add("64");
commend.add("-acodec");
commend.add("mp3");
commend.add("-ac");
commend.add("2");
commend.add("-ar");
commend.add("22050");
commend.add("-b");
commend.add("230");
commend.add("-r");
commend.add("24");
commend.add("-y");
commend.add(flvfolder + filerealname + ".flv");
try {
ProcessBuilder builder = new ProcessBuilder();
String cmd = commend.toString();
builder.command(commend);
Process p = builder.start();
doWaitFor(p);
p.destroy();
deleteFile(oldfilepath);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}

public int doWaitFor(Process p) {
InputStream in = null;
InputStream err = null;
int exitValue = -1; // returned to caller when p is finished
try {
System.out.println("comeing");
in = p.getInputStream();
err = p.getErrorStream();
boolean finished = false; // Set to true when p is finished

while (!finished) {
try {
while (in.available() > 0) {
Character c = new Character((char) in.read());
System.out.print(c);
}
while (err.available() > 0) {
Character c = new Character((char) err.read());
System.out.print(c);
}

exitValue = p.exitValue();
finished = true;

} catch (IllegalThreadStateException e) {
Thread.currentThread().sleep(500);
}
}
} catch (Exception e) {
System.err.println("doWaitFor();: unexpected exception - "
+ e.getMessage());
} finally {
try {
if (in != null) {
in.close();
}

} catch (IOException e) {
System.out.println(e.getMessage());
}
if (err != null) {
try {
err.close();
} catch (IOException e) {
System.out.println(e.getMessage());
}
}
}
return exitValue;
}

public void deleteFile(String filepath) {
File file = new File(filepath);
if (PATH.equals(filepath)) {
if (file.delete()) {
System.out.println("文件" + filepath + "已删除");
}
} else {
if (file.delete()) {
System.out.println("文件" + filepath + "已删除 ");
}
File filedelete2 = new File(PATH);
if (filedelete2.delete()) {
System.out.println("文件" + PATH + "已删除");
}
}
}

public String sumTime(long ms) {
int ss = 1000;
long mi = ss * 60;
long hh = mi * 60;
long dd = hh * 24;

long day = ms / dd;
long hour = (ms - day * dd) / hh;
long minute = (ms - day * dd - hour * hh) / mi;
long second = (ms - day * dd - hour * hh - minute * mi) / ss;
long milliSecond = ms - day * dd - hour * hh - minute * mi - second
* ss;

String strDay = day < 10 ? "0" + day + "天" : "" + day + "天";
String strHour = hour < 10 ? "0" + hour + "小时" : "" + hour + "小时";
String strMinute = minute < 10 ? "0" + minute + "分" : "" + minute + "分";
String strSecond = second < 10 ? "0" + second + "秒" : "" + second + "秒";
String strMilliSecond = milliSecond < 10 ? "0" + milliSecond : ""
+ milliSecond;
strMilliSecond = milliSecond < 100 ? "0" + strMilliSecond + "毫秒" : ""
+ strMilliSecond + " 毫秒";
return strDay + " " + strHour + ":" + strMinute + ":" + strSecond + " "
+ strMilliSecond;

}
}

ProcessFlvImg.java

package com.ll19.flv;

import java.io.File;
import java.util.List;

public class ProcessFlvImg {

public String ffmpegpath = "D:\\video\\FFmpeg\\bin\\ffmpeg.exe"; // ffmpeg.exe的目录

public boolean processImg(String path) {

File fi = new File(path);

List commend = new java.util.ArrayList();
commend.add(ffmpegpath);
commend.add("-i");
commend.add(path);
commend.add("-y");
commend.add("-f");
commend.add("image2");
commend.add("-ss");
commend.add("38");
commend.add("-t");
commend.add("0.001");
commend.add("-s");
commend.add("320x240");
commend.add(fi.getPath() + ".jpg");

try {
ProcessBuilder builder = new ProcessBuilder();
builder.command(commend);
builder.start();
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}

}