JAVA无需本地下载Ffmpeg，实现FfmpegCMD JAVA无需本地下载Ffmpeg，实现

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通过Ffmpeg实现MP4转码加密为M3u8
【JAVA无需本地下载Ffmpeg，实现FfmpegCMD】本无无需本地下载Ffmpeg，只需引入maven依赖即可
1、引入maven依赖

ws.schild jave-all-deps 3.3.1 ws.schild jave-core 3.3.1 ws.schild jave-nativebin-win64 3.3.1

2、编写FfmpegCMD类代码

package com.gxw.util; 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; /** * * @Description:(cmd方式调用ffmpeg) * @author: GuoXiangWen * @date:2022年04月16日上午08:08:08 * @Copyright: */ 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 ffmpegCmdwindows 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(); }}