Java-解析音频文件时长
java利用Ffmpeg解析音频文件时长
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import java.io.IOException;
import java.io.InputStream;
import java.math.BigDecimal;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class FfmpegCmdDurationTest {
private final static String DURATION_START = "Duration:";
private final static String KEY_FOR_HOUR = "hour";
private final static String KEY_FOR_MINUTE = "minute";
private final static String KEY_FOR_SECONED = "seconed";
private final static String KEY_FOR_MILLSECONED = "millseconed";
//小时 * 60 = 分
//分 * 60 = 秒
private final static BigDecimal GAP_60 = new BigDecimal("60");
//秒* 1000 = 毫秒
private final static BigDecimal GAP_1000 = new BigDecimal("1000");
/**
* TYPE_0:小时
* TYPE_1:分钟
* TYPE_2:秒钟
* TYPE_3:毫秒
*/
public final static int TYPE_0 = 0;
public final static int TYPE_1 = 1;
public final static int TYPE_2 = 2;
public final static int TYPE_3 = 3;
//ffmpeg执行命令 1665557874.18 1665556459.14
private final static String cmd_4_info = "-i D:/upload/sound//1665557874.18.mp3";
public static void main(String[] args) {
try {
//System.out.println(String.format("获取时长：%s 小时", duration(cmd_4_info,TYPE_0).doubleValue()));
//System.out.println(String.format("获取时长：%s 分钟", duration(cmd_4_info,TYPE_1).doubleValue()));
System.out.println(String.format("获取时长：%s 秒钟", duration(cmd_4_info,TYPE_2).setScale(0, BigDecimal.ROUND_FLOOR)));
System.out.println(duration(cmd_4_info,2).setScale(0, BigDecimal.ROUND_FLOOR).toPlainString());
//System.out.println(String.format("获取时长：%s 毫秒", duration(cmd_4_info,TYPE_3).doubleValue()));
//System.out.println("");
//System.out.println(String.format("获取时长（格式化）：%s", durationFormat(cmd_4_info)));
} catch (Exception e) {
e.printStackTrace();
}
}
/**
*
* @Description: (获取格式化的时间duration：such as:00:01:03.32)
* @param: @param cmd_4_info
* @param: @return
* @param: @throws Exception
* @return: BigDecimal
* @throws
*/
public static String durationFormat(final String cmd_4_info) throws Exception {
String duration = null;
Map<String,String> map = null;
try {
CompletableFuture<String> completableFutureTask = CompletableFuture.supplyAsync(() ->{
String durationStr = null;
//执行ffmpeg命令
StringBuffer sText = getErrorStreamText(cmd_4_info);
if(null != sText && sText.indexOf(DURATION_START) > -1) {
String stextOriginal = sText.toString();
//正则解析时间
Matcher matcher = patternDuration().matcher(stextOriginal);
//正则提取字符串
while(matcher.find()){
//such as:00:01:03.32
durationStr = matcher.group(1);
break;
}
}
return durationStr;
}, ThreadPoolExecutorUtils.pool);
duration = completableFutureTask.get();
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
e.printStackTrace();
} catch (ExecutionException e) {
e.printStackTrace();
}
return duration;
}
/**
*
* @Description: (获取时长)
* @param: @param cmd_4_info ffmpeg命令，如：-i I:\\荣耀视频测试.mp4
* @param: @param type 类型：
* TYPE_0:小时
* TYPE_1:分钟
* TYPE_2:秒钟
* TYPE_3:毫秒
* @param: @return
* @return: BigDecimal
* @throws Exception
* @throws
*/
public static BigDecimal duration(final String cmd_4_info, int type) throws Exception {
BigDecimal duration = new BigDecimal("00");
Map<String,String> map = null;
try {
CompletableFuture<Map<String,String>> completableFutureTask = CompletableFuture.supplyAsync(() ->{
Map<String,String> mapTmp = null;
//执行ffmpeg命令
StringBuffer sText = getErrorStreamText(cmd_4_info);
if(null != sText && sText.indexOf(DURATION_START) > -1) {
String stextOriginal = sText.toString();
//正则解析时间
Matcher matcher = patternDuration().matcher(stextOriginal);
//正则提取字符串
while(matcher.find()){
//such as:00:01:03.32
String durationStr = matcher.group(1);
mapTmp = getHourMinuteSeconedMillseconed(durationStr);
break;
}
}
return mapTmp;
}, ThreadPoolExecutorUtils.pool);
map = completableFutureTask.get();
if(null != map && map.size() > 0) {
switch (type) {
case TYPE_0:
//小时
duration = duration.add(new BigDecimal(map.get(KEY_FOR_HOUR)));
break;
case TYPE_1:
//分钟
duration = duration.add(new BigDecimal(map.get(KEY_FOR_HOUR)).multiply(GAP_60))
.add(new BigDecimal(map.get(KEY_FOR_MINUTE)));
break;
case TYPE_2:
//秒
duration = duration.add(new BigDecimal(map.get(KEY_FOR_HOUR)).multiply(GAP_60).multiply(GAP_60))
.add(new BigDecimal(map.get(KEY_FOR_MINUTE)).multiply(GAP_60))
.add(new BigDecimal(map.get(KEY_FOR_SECONED)));
break;
case TYPE_3:
//毫秒
duration = duration.add(new BigDecimal(map.get(KEY_FOR_HOUR)).multiply(GAP_60).multiply(GAP_60).multiply(GAP_1000))
.add(new BigDecimal(map.get(KEY_FOR_MINUTE)).multiply(GAP_60).multiply(GAP_1000))
.add(new BigDecimal(map.get(KEY_FOR_SECONED)).multiply(GAP_1000))
.add(new BigDecimal(map.get(KEY_FOR_MILLSECONED)));
break;
default:
throw new Exception("未知的类型！");
}
}
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
e.printStackTrace();
} catch (ExecutionException e) {
e.printStackTrace();
}
return duration;
}
//模式
public static Pattern patternDuration() {
//"(?i)duration:\\s*([0-9\\:\\.]+)"-->匹配到时分秒即可，毫秒不需要
return Pattern.compile("(?i)duration:\\s*([0-9\\:\\.]+)");
}
/**
*
* @Description: (获取错误流)
* @param: @param cmd_4_info
* @param: @return
* @return: StringBuffer
* @throws
*/
private static StringBuffer getErrorStreamText(String cmdStr) {
//返回的text
StringBuffer sText = new StringBuffer();
FfmpegCmd ffmpegCmd = new FfmpegCmd();
try {
;
//错误流
InputStream errorStream = null;
//destroyOnRuntimeShutdown表示是否立即关闭Runtime
//如果ffmpeg命令需要长时间执行，destroyOnRuntimeShutdown = false
//openIOStreams表示是不是需要打开输入输出流:
// inputStream = processWrapper.getInputStream();
// outputStream = processWrapper.getOutputStream();
// errorStream = processWrapper.getErrorStream();
ffmpegCmd.execute(false, true, cmdStr);
errorStream = ffmpegCmd.getErrorStream();
//打印过程
int len = 0;
while ((len=errorStream.read())!=-1){
char t = (char)len;
// System.out.print(t);
sText.append(t);
}
//code=0表示正常
ffmpegCmd.getProcessExitCode();
} catch (IOException e) {
e.printStackTrace();
} finally {
//关闭资源
ffmpegCmd.close();
}
//返回
return sText;
}
/**
*
* @Description: (获取duration的时分秒毫秒)
* @param: durationStr such as:00:01:03.32
* @return: Map
* @throws
*/
private static Map<String,String> getHourMinuteSeconedMillseconed(String durationStr){
HashMap<String,String> map = new HashMap<>(4);
if(null != durationStr && durationStr.length() > 0) {
String[] durationStrArr = durationStr.split("\\:");
String hour = durationStrArr[0];
String minute = durationStrArr[1];
//特殊
String seconed = "00";
String millseconed = "00";
String seconedTmp = durationStrArr[2];
if(seconedTmp.contains("\\.")) {
String[] seconedTmpArr = seconedTmp.split("\\.");
seconed = seconedTmpArr[0];
millseconed = seconedTmpArr[1];
}
else {
seconed = seconedTmp;
}
map.put(KEY_FOR_HOUR, hour);
map.put(KEY_FOR_MINUTE, minute);
map.put(KEY_FOR_SECONED, seconed);
map.put(KEY_FOR_MILLSECONED, millseconed);
}
return map;
}
}
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import ws.schild.jave.process.ProcessKiller;
import ws.schild.jave.process.ProcessWrapper;
import ws.schild.jave.process.ffmpeg.DefaultFFMPEGLocator;
public class FfmpegCmd {
private static final Logger LOG = LoggerFactory.getLogger(ProcessWrapper.class);
/** The process representing the ffmpeg execution. */
private Process ffmpeg = null;
/**
* A process killer to kill the ffmpeg process with a shutdown hook, useful if the jvm execution
* is shutted down during an ongoing encoding process.
*/
private ProcessKiller ffmpegKiller = null;
/** A stream reading from the ffmpeg process standard output channel. */
private InputStream inputStream = null;
/** A stream writing in the ffmpeg process standard input channel. */
private OutputStream outputStream = null;
/** A stream reading from the ffmpeg process standard error channel. */
private InputStream errorStream = null;
/**
* Executes the ffmpeg process with the previous given arguments.
*
* @param destroyOnRuntimeShutdown destroy process if the runtime VM is shutdown
* @param openIOStreams Open IO streams for input/output and errorout, should be false when
* destroyOnRuntimeShutdown is false too
* @param ffmpegCmd windows such as (mp4 transform to mov):
* " -i C:\\Users\\hsj\\AppData\\Local\\Temp\\jave\\honer.mp4 -c copy C:\\Users\\hsj\\AppData\\Local\\Temp\\jave\\honer_test.mov "
* @throws IOException If the process call fails.
*/
public void execute(boolean destroyOnRuntimeShutdown, boolean openIOStreams, String ffmpegCmd) throws IOException {
DefaultFFMPEGLocator defaultFFMPEGLocator = new DefaultFFMPEGLocator();
StringBuffer cmd = new StringBuffer(defaultFFMPEGLocator.getExecutablePath());
//insert blank for delimiter
cmd.append(" ");
cmd.append(ffmpegCmd);
String cmdStr = String.format("ffmpegCmd final is :%s", cmd.toString());
System.out.println(cmdStr);
LOG.info(cmdStr);
Runtime runtime = Runtime.getRuntime();
try {
ffmpeg = runtime.exec(cmd.toString());
if (destroyOnRuntimeShutdown) {
ffmpegKiller = new ProcessKiller(ffmpeg);
runtime.addShutdownHook(ffmpegKiller);
}
if (openIOStreams) {
inputStream = ffmpeg.getInputStream();
outputStream = ffmpeg.getOutputStream();
errorStream = ffmpeg.getErrorStream();
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Returns a stream reading from the ffmpeg process standard output channel.
*
* @return A stream reading from the ffmpeg process standard output channel.
*/
public InputStream getInputStream() {
return inputStream;
}
/**
* Returns a stream writing in the ffmpeg process standard input channel.
*
* @return A stream writing in the ffmpeg process standard input channel.
*/
public OutputStream getOutputStream() {
return outputStream;
}
/**
* Returns a stream reading from the ffmpeg process standard error channel.
*
* @return A stream reading from the ffmpeg process standard error channel.
*/
public InputStream getErrorStream() {
return errorStream;
}
/** If there's a ffmpeg execution in progress, it kills it. */
public void destroy() {
if (inputStream != null) {
try {
inputStream.close();
} catch (Throwable t) {
LOG.warn("Error closing input stream", t);
}
inputStream = null;
}
if (outputStream != null) {
try {
outputStream.close();
} catch (Throwable t) {
LOG.warn("Error closing output stream", t);
}
outputStream = null;
}
if (errorStream != null) {
try {
errorStream.close();
} catch (Throwable t) {
LOG.warn("Error closing error stream", t);
}
errorStream = null;
}
if (ffmpeg != null) {
ffmpeg.destroy();
ffmpeg = null;
}
if (ffmpegKiller != null) {
Runtime runtime = Runtime.getRuntime();
runtime.removeShutdownHook(ffmpegKiller);
ffmpegKiller = null;
}
}
/**
* Return the exit code of the ffmpeg process If the process is not yet terminated, it waits for
* the termination of the process
*
* @return process exit code
*/
public int getProcessExitCode() {
// Make sure it's terminated
try {
ffmpeg.waitFor();
} catch (InterruptedException ex) {
LOG.warn("Interrupted during waiting on process, forced shutdown?", ex);
}
return ffmpeg.exitValue();
}
/**close**/
public void close() {
destroy();
}
}
import java.util.concurrent.ExecutorService;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
public class ThreadPoolExecutorUtils {
//多线程
public static int core = Runtime.getRuntime().availableProcessors();
public static ExecutorService pool = new ThreadPoolExecutor(core,//核心
core * 2,//最大
0L,//空闲立即退出
TimeUnit.MILLISECONDS,
new LinkedBlockingQueue<Runnable>(1024),//无边界阻塞队列
new ThreadPoolExecutor.AbortPolicy());
}
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