java程序实现视频格式的转换
http://blog.sina.com.cn/s/blog_96b60b0c01013mi5.html
原文地址:java程序实现视频格式的转换作者:笑看风云
flv格式转换--第一步
不定期更新...
首先要安装MediaCoder
安装目录假设为D:flvMediaCoder
在D:flvMediaCodercodecs目录下有一些要用到的,如ffmpeg.exe , mencoder.exe还有一些dll
ConvertVideo.java
package com.lichen.test;
import java.io.File;
import java.util.List;
public class ConvertVideo {
private final static String PATH = "d:\test\a.mpg";
public static void main(String[] args) {
if (!checkfile(PATH)) {
System.out.println(PATH + " is not file");
return;
}
if (process()) {
System.out.println("ok");
}
}
private static 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=processImg();
processFLV(PATH);
} else if (type == 1) {
String avifilepath = processAVI(type);
if (avifilepath == null)
return false;// avi文件没有得到
status = processFLV(avifilepath);// 将avi转为flv
}
return status;
}
private static 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 static boolean checkfile(String path) {
File file = new File(path);
if (!file.isFile()) {
return false;
}
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 static String processAVI(int type) {
List<String> commend = new java.util.ArrayList<String>();
// commend.add("e:\mencoder"); // D:flvMediaCodercodecs
commend.add("d:\flv\MediaCoder\codecs");
commend.add(PATH);
commend.add("-oac");
commend.add("lavc");
commend.add("-lavcopts");
commend.add("acodec=mp3:abitrate=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("d:\test\a.avi");
try {
ProcessBuilder builder = new ProcessBuilder();
builder.command(commend);
builder.start();
return "c:\home\a.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 static boolean processFLV(String oldfilepath) {
if (!checkfile(PATH)) {
System.out.println(oldfilepath + " is not file");
return false;
}
List<String> commend = new java.util.ArrayList<String>();
commend.add("d:\flv\MediaCoder\codecs\ffmpeg.exe");
commend.add("-i");
commend.add(oldfilepath);
commend.add("-ab");
commend.add("64");
// commend.add(" -acodec ");
// commend.add("codec");
commend.add("-ac");
commend.add("2");
commend.add("-ar");
commend.add("22050");
commend.add("-b");
commend.add("230");
// commend.add("-s");
// commend.add("350x240");
commend.add("-r");
commend.add("29.97");
commend.add("-y");
commend.add("d:\test\b.flv");
System.out.println(commend);
try {
ProcessBuilder builder = new ProcessBuilder();
builder.command(commend);
builder.start();
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
// 生成图片 参数String newfilename, String newimg
public static boolean processImg() {
// System.out.println(newfilename + "->" + newimg);
List<String> commend = new java.util.ArrayList<String>();
commend.add("d:\flv\MediaCoder\codecs\ffmpeg.exe");
commend.add("-i");
commend.add("d:\test\a.mpg");
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("d:\test\b.jpg");
try {
ProcessBuilder builder = new ProcessBuilder();
builder.command(commend);
builder.start();
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
}
import java.io.File;
import java.util.List;
public class ConvertVideo {
private final static String PATH = "d:\test\a.mpg";
public static void main(String[] args) {
if (!checkfile(PATH)) {
System.out.println(PATH + " is not file");
return;
}
if (process()) {
System.out.println("ok");
}
}
private static 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=processImg();
processFLV(PATH);
} else if (type == 1) {
String avifilepath = processAVI(type);
if (avifilepath == null)
return false;// avi文件没有得到
status = processFLV(avifilepath);// 将avi转为flv
}
return status;
}
private static 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 static boolean checkfile(String path) {
File file = new File(path);
if (!file.isFile()) {
return false;
}
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 static String processAVI(int type) {
List<String> commend = new java.util.ArrayList<String>();
// commend.add("e:\mencoder"); // D:flvMediaCodercodecs
commend.add("d:\flv\MediaCoder\codecs");
commend.add(PATH);
commend.add("-oac");
commend.add("lavc");
commend.add("-lavcopts");
commend.add("acodec=mp3:abitrate=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("d:\test\a.avi");
try {
ProcessBuilder builder = new ProcessBuilder();
builder.command(commend);
builder.start();
return "c:\home\a.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 static boolean processFLV(String oldfilepath) {
if (!checkfile(PATH)) {
System.out.println(oldfilepath + " is not file");
return false;
}
List<String> commend = new java.util.ArrayList<String>();
commend.add("d:\flv\MediaCoder\codecs\ffmpeg.exe");
commend.add("-i");
commend.add(oldfilepath);
commend.add("-ab");
commend.add("64");
// commend.add(" -acodec ");
// commend.add("codec");
commend.add("-ac");
commend.add("2");
commend.add("-ar");
commend.add("22050");
commend.add("-b");
commend.add("230");
// commend.add("-s");
// commend.add("350x240");
commend.add("-r");
commend.add("29.97");
commend.add("-y");
commend.add("d:\test\b.flv");
System.out.println(commend);
try {
ProcessBuilder builder = new ProcessBuilder();
builder.command(commend);
builder.start();
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
// 生成图片 参数String newfilename, String newimg
public static boolean processImg() {
// System.out.println(newfilename + "->" + newimg);
List<String> commend = new java.util.ArrayList<String>();
commend.add("d:\flv\MediaCoder\codecs\ffmpeg.exe");
commend.add("-i");
commend.add("d:\test\a.mpg");
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("d:\test\b.jpg");
try {
ProcessBuilder builder = new ProcessBuilder();
builder.command(commend);
builder.start();
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
}