java把m3u8视频转为mp4
代码
import java.io.*;
import java.nio.charset.Charset;
import java.nio.file.Path;
import java.nio.file.Files;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeUnit;
/**
* @Title: Process
* @Author cxf
* @Package com.example.demo.test
* @Date 2024/7/11 10:29
* @description: 测试
*/
public class ProcessUtils {
public static void main(String[] args) {
long start = System.currentTimeMillis();
List<String> splice = splice();
if (!splice.isEmpty()) {
for (String command : splice) {
int result = ProcessUtils.executeCommand(command);
if (result == 0) {
try {
//System.out.println("command "+command);
String replace = command.replace("copy /b ", "");
String[] split = replace.split(" \\+ ");
String string = split[0];
String sub = string.substring(0, string.lastIndexOf("\\"));
String target = sub.substring(0, sub.lastIndexOf("\\"));
File file = new File(target);
if (file.exists()) {
deleteDirectory(file);
}
TimeUnit.SECONDS.sleep(3);
} catch (Exception e) {
}
} else {
System.out.println(command);
System.out.println(result);
}
}
}
long end = System.currentTimeMillis();
System.out.println("处理完成，耗时：" + ((end - start) / 1000) + "秒");
/* try {
TimeUnit.MINUTES.sleep(4);
} catch (InterruptedException e) {
e.printStackTrace();
}*/
}
private static List<String> splice() {
int count = 0;
int stop = 10;
// 25个小文件合成一个临时文件
int batchSize = 30;
List<String> strList = new ArrayList<>();
try {
// ts文件所在目录
String dirPath = "D:\\movie";
// MP4存放目录
String moviePath = "D:\\video\\";
File file = new File(dirPath);
if (file.exists()) {// 1.判断文件是否存在
File[] movieDir = file.listFiles();
for (File dir : movieDir) {
if (count > stop) {
break;
}
File[] tsDir = dir.listFiles();
if(tsDir.length > 0){
count++;
if (dir.isDirectory()) {
String tmpDir = dir.getAbsolutePath();
File videoPath = new File(tmpDir);
File[] files = videoPath.listFiles();
List<String> sortList = new ArrayList<String>();
for (File file2 : files) {
if (file2.isDirectory()) {
String absolutePath = file2.getAbsolutePath();
File videos = new File(absolutePath + "");
File[] ts = videos.listFiles();
int total = ts.length;
if (total > 0) {
for (File t : ts) {
String name = t.getName();
if (!(name.endsWith(".class") || name.endsWith(".bat"))) {
if (name.endsWith("ts")) {
sortList.add(name);
}
}
}
sortList.sort((o1, o2) -> {
String split1 = o1.split("\\.")[0];
String split2 = o2.split("\\.")[0];
int parseInt1;
int parseInt2;
try {
parseInt1 = Integer.parseInt(split1);
parseInt2 = Integer.parseInt(split2);
} catch (NumberFormatException e) {//如果是非数字，按照原来的顺序
return 0;
}
if (parseInt1 > parseInt2) {
return 1;
} else {
return -1;
}
});
int size = sortList.size();
if (size > batchSize) {
List<String> temList = new ArrayList<>();
String tmp = tmpDir + "\\tmp\\";
File t = new File(tmp);
if (!t.exists()) {
t.mkdir();
} else {
tmp = tmpDir + "\\tmp2\\";
t = new File(tmp);
t.mkdir();
}
for (int s = 0; s < size; s += batchSize) {
int endIndex = Math.min(s + batchSize, size);
List<String> subList = sortList.subList(s, endIndex);
int subListSize = subList.size();
StringBuffer fw = new StringBuffer("copy /b ");
for (int i = 0; i < subListSize; i++) {
if (i == subListSize - 1) {
fw.append(absolutePath).append("\\");
fw.append(subList.get(i));
break;
}
fw.append(absolutePath).append("\\");
fw.append(subList.get(i)).append(" + ");
}
long timeMillis = System.currentTimeMillis();
fw.append(" ").append(tmp);
fw.append(timeMillis).append(".ts");
String com = fw.toString();
//System.out.println(com);
temList.add(com);
TimeUnit.MILLISECONDS.sleep(500);
}
tmpVideo(temList, absolutePath);
} else {
StringBuffer fw = new StringBuffer("copy /b ");
for (int i = 0; i < size; i++) {
if (i == size - 1) {
fw.append(absolutePath).append("\\");
fw.append(sortList.get(i));
break;
}
fw.append(absolutePath).append("\\");
fw.append(sortList.get(i)).append(" + ");
}
long timeMillis = System.currentTimeMillis();
fw.append(" ").append(moviePath);
fw.append(timeMillis).append(".mp4");
String com = fw.toString();
//System.out.println(com);
strList.add(com);
TimeUnit.MILLISECONDS.sleep(1000);
}
}
}
}
}
}else{
System.out.println("空文件夹 "+ dir.getAbsolutePath());
dir.delete();
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return strList;
}
// 将多个小文件合成临时文件，删除小文件
private static void tmpVideo(List<String> strList, String path) throws Exception {
if (!strList.isEmpty()) {
boolean flag = true;
int r = 0;
for (String com : strList) {
//System.out.println(com);
int result = ProcessUtils.executeCommand(com);
r++;
if (result == 0) {
//TimeUnit.MILLISECONDS.sleep(1000);
} else {
flag = false;
System.out.println("失败批次：" + com);
}
}
if (flag) {
deleteDirectory(new File(path));
System.out.println("删除 " + path + " 成功");
}
}
}
public static int executeCommand(String command) {
int exitCode = 1;
Charset charset = System.getProperty("os.name").toLowerCase().contains("win") ? Charset.forName("GBK") : Charset.defaultCharset();
String os = System.getProperty("os.name").toLowerCase();
List<String> commands = new ArrayList<>();
// 判断操作系统类型，并准备命令
if (os.contains("win")) {
// Windows
commands.add("cmd");
commands.add("/c");
} else {
// Unix/Linux/MacOS
commands.add("/bin/sh");
commands.add("-c");
}
commands.add(command);
// 执行命令并获取结果
try {
ProcessBuilder processBuilder = new ProcessBuilder(commands);
Process process = processBuilder.start();
// 获取输出
String output = readStream(process.getInputStream(), charset);
// 等待进程结束
exitCode = process.waitFor();
if (exitCode == 0) {
return exitCode;
} else {
String error = readStream(process.getErrorStream(), charset);
System.out.println("exit code " + exitCode + " and error: " + error);
throw new IOException("exit code " + exitCode + " and error: " + error + output);
}
} catch (IOException | InterruptedException e) {
Thread.currentThread().interrupt();
//return "Error: " + e.getMessage();
}
return exitCode;
}
private static void deleteDirectory(File directory) throws Exception {
if (directory.exists()) {
Files.walk(directory.toPath())
.sorted((p1, p2) -> -p1.compareTo(p2))
.map(Path::toFile)
.forEach(File::delete);
System.out.println("已删除: " + directory.getAbsolutePath());
}
}
private static String readStream(InputStream inputStream, Charset charset) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, charset));
StringBuilder builder = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
builder.append(line);
builder.append(System.getProperty("line.separator"));
}
return builder.toString();
}
public static void test(String[] args) throws IOException {
String property = System.getProperty("user.dir");
File file = new File(property);// 文件夹
String runFilePath = property + "/new.bat";
File runFile = new File(runFilePath);// 生成的可执行文件
FileWriter fw = null;
try {
fw = new FileWriter(runFile);
fw.append("copy /b ");
fw.flush();
if (file.exists()) {// 1.判断文件是否存在
if (file.isDirectory()) {// 2.判断是否为文件夹
File[] listFiles = file.listFiles();
List<String> sortList = new ArrayList<String>();
for (File file2 : listFiles) {
String name = file2.getName();// 获取名字
if (!(name.endsWith(".class") || name.endsWith(".bat"))) {
sortList.add(name);
}
}
//4.排序
sortList.sort((o1, o2) -> {
String split1 = o1.split("\\.")[0];
String split2 = o2.split("\\.")[0];
int parseInt1;
int parseInt2;
try {
parseInt1 = Integer.parseInt(split1);
parseInt2 = Integer.parseInt(split2);
} catch (NumberFormatException e) {//如果是非数字，按照原来的顺序
return 0;
}
if (parseInt1 > parseInt2) {
return 1;
} else {
return -1;
}
});
int size = sortList.size();
for (int i = 0; i < size; i++) {
System.out.println(sortList.get(i));
if (i == size - 1) {
fw.append(sortList.get(i));
break;
}
fw.append(sortList.get(i) + "+");
fw.flush();
}
fw.append(" new.mp4");
fw.flush();
fw.close();
}
}
callCmd(runFilePath);
} catch (Exception e) {
e.printStackTrace();
} finally {
if (fw != null) {
fw.close();
}
}
}
private static void callCmd(String locationCmd) {
StringBuilder sb = new StringBuilder();
InputStream in = null;
BufferedReader bufferedReader = null;
try {
Process child = Runtime.getRuntime().exec(locationCmd);
in = child.getInputStream();
bufferedReader = new BufferedReader(new InputStreamReader(in));
String line;
while ((line = bufferedReader.readLine()) != null) {
sb.append(line + "\n");
}
bufferedReader.close();
in.close();
try {
child.waitFor();
} catch (InterruptedException e) {
System.out.println(e);
}
System.out.println("sb:" + sb.toString());
System.out.println("callCmd execute finished");
//执行完成后，将执行文件删除。
File file = new File(locationCmd);
file.delete();
} catch (IOException e) {
System.out.println(e);
} finally {
try {
//将流关闭，从小往大关,防止流未关闭占用内存
if (bufferedReader != null) {
bufferedReader.close();
}
if (in != null) {
in.close();
}
} catch (IOException e) {
}
}
}
}