应用赫赫有名的ffmpeg，把视频文件切片成m3u8，并且通过springboot，能够实现在线的点播。
想法客户端上传视频到服务器，服务器对视频进行切片后，返回m3u8，封面等拜访门路。能够在线的播放。服务器能够对视频做一些简略的解决，例如裁剪，封面的截取工夫。
视频转码文件夹的定义喜羊羊与灰太狼 // 文件夹名称就是视频题目 |-index.m3u8 // 主m3u8文件，外面能够配置多个码率的播放地址 |-poster.jpg // 截取的封面图片 |-ts // 切片目录 |-index.m3u8 // 切片播放索引 |-key // 播放须要解密的AES KEY实现须要先在本机装置FFmpeg，并且增加到PATH环境变量，如果不会先通过搜索引擎找找材料工程
pom<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.demo</groupId> <artifactId>demo</artifactId> <version>0.0.1-SNAPSHOT</version> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.4.5</version> <relativePath /> <!-- lookup parent from repository --> </parent> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.junit.vintage</groupId> <artifactId>junit-vintage-engine</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <exclusions> <exclusion> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-undertow</artifactId> </dependency> <dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> </dependency> <dependency> <groupId>com.google.code.gson</groupId> <artifactId>gson</artifactId> </dependency> </dependencies> <build> <finalName>${project.artifactId}</finalName> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <executable>true</executable> </configuration> </plugin> </plugins> </build></project>配置文件server: port: 80app: # 存储转码视频的文件夹地址 video-folder: "C:\\Users\\Administrator\\Desktop\\tmp"spring: servlet: multipart: enabled: true # 不限度文件大小 max-file-size: -1 # 不限度申请体大小 max-request-size: -1 # 长期IO目录 location: "${java.io.tmpdir}" # 不提早解析 resolve-lazily: false # 超过1Mb，就IO到长期目录 file-size-threshold: 1MB web: resources: static-locations: - "classpath:/static/" - "file:${app.video-folder}" # 把视频文件夹目录，增加到动态资源目录列表TranscodeConfig，用于管制转码的一些参数package com.demo.ffmpeg;public class TranscodeConfig { private String poster; // 截取封面的工夫 HH:mm:ss.[SSS] private String tsSeconds; // ts分片大小，单位是秒 private String cutStart; // 视频裁剪，开始工夫 HH:mm:ss.[SSS] private String cutEnd; // 视频裁剪，完结工夫 HH:mm:ss.[SSS] public String getPoster() { return poster; } public void setPoster(String poster) { this.poster = poster; } public String getTsSeconds() { return tsSeconds; } public void setTsSeconds(String tsSeconds) { this.tsSeconds = tsSeconds; } public String getCutStart() { return cutStart; } public void setCutStart(String cutStart) { this.cutStart = cutStart; } public String getCutEnd() { return cutEnd; } public void setCutEnd(String cutEnd) { this.cutEnd = cutEnd; } @Override public String toString() { return "TranscodeConfig [poster=" + poster + ", tsSeconds=" + tsSeconds + ", cutStart=" + cutStart + ", cutEnd=" + cutEnd + "]"; }}MediaInfo，封装视频的一些根底信息package com.demo.ffmpeg;import java.util.List;import com.google.gson.annotations.SerializedName;public class MediaInfo { public static class Format { @SerializedName("bit_rate") private String bitRate; public String getBitRate() { return bitRate; } public void setBitRate(String bitRate) { this.bitRate = bitRate; } } public static class Stream { @SerializedName("index") private int index; @SerializedName("codec_name") private String codecName; @SerializedName("codec_long_name") private String codecLongame; @SerializedName("profile") private String profile; } // ---------------------------------- @SerializedName("streams") private List<Stream> streams; @SerializedName("format") private Format format; public List<Stream> getStreams() { return streams; } public void setStreams(List<Stream> streams) { this.streams = streams; } public Format getFormat() { return format; } public void setFormat(Format format) { this.format = format; }}FFmpegUtils，工具类封装FFmpeg的一些操作package com.demo.ffmpeg;import java.io.BufferedReader;import java.io.File;import java.io.IOException;import java.io.InputStreamReader;import java.nio.charset.StandardCharsets;import java.nio.file.Files;import java.nio.file.Path;import java.nio.file.Paths;import java.nio.file.StandardOpenOption;import java.security.NoSuchAlgorithmException;import java.util.ArrayList;import java.util.List;import javax.crypto.KeyGenerator;import org.apache.commons.codec.binary.Hex;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.util.StringUtils;import com.google.gson.Gson;public class FFmpegUtils { private static final Logger LOGGER = LoggerFactory.getLogger(FFmpegUtils.class); // 跨平台换行符 private static final String LINE_SEPARATOR = System.getProperty("line.separator"); /** * 生成随机16个字节的AESKEY * @return */ private static byte[] genAesKey () { try { KeyGenerator keyGenerator = KeyGenerator.getInstance("AES"); keyGenerator.init(128); return keyGenerator.generateKey().getEncoded(); } catch (NoSuchAlgorithmException e) { return null; } } /** * 在指定的目录下生成key_info, key文件，返回key_info文件 * @param folder * @throws IOException */ private static Path genKeyInfo(String folder) throws IOException { // AES 密钥 byte[] aesKey = genAesKey(); // AES 向量 String iv = Hex.encodeHexString(genAesKey()); // key 文件写入 Path keyFile = Paths.get(folder, "key"); Files.write(keyFile, aesKey, StandardOpenOption.CREATE, StandardOpenOption.TRUNCATE_EXISTING); // key_info 文件写入 StringBuilder stringBuilder = new StringBuilder(); stringBuilder.append("key").append(LINE_SEPARATOR); // m3u8加载key文件网络门路 stringBuilder.append(keyFile.toString()).append(LINE_SEPARATOR); // FFmeg加载key_info文件门路 stringBuilder.append(iv); // ASE 向量 Path keyInfo = Paths.get(folder, "key_info"); Files.write(keyInfo, stringBuilder.toString().getBytes(), StandardOpenOption.CREATE, StandardOpenOption.TRUNCATE_EXISTING); return keyInfo; } /** * 指定的目录下生成 master index.m3u8 文件 * @param fileName master m3u8文件地址 * @param indexPath 拜访子index.m3u8的门路 * @param bandWidth 流码率 * @throws IOException */ private static void genIndex(String file, String indexPath, String bandWidth) throws IOException { StringBuilder stringBuilder = new StringBuilder(); stringBuilder.append("#EXTM3U").append(LINE_SEPARATOR); stringBuilder.append("#EXT-X-STREAM-INF:BANDWIDTH=" + bandWidth).append(LINE_SEPARATOR); // 码率 stringBuilder.append(indexPath); Files.write(Paths.get(file), stringBuilder.toString().getBytes(StandardCharsets.UTF_8), StandardOpenOption.CREATE, StandardOpenOption.TRUNCATE_EXISTING); } /** * 转码视频为m3u8 * @param source 源视频 * @param destFolder 指标文件夹 * @param config 配置信息 * @throws IOException * @throws InterruptedException */ public static void transcodeToM3u8(String source, String destFolder, TranscodeConfig config) throws IOException, InterruptedException { // 判断源视频是否存在 if (!Files.exists(Paths.get(source))) { throw new IllegalArgumentException("文件不存在：" + source); } // 创立工作目录 Path workDir = Paths.get(destFolder, "ts"); Files.createDirectories(workDir); // 在工作目录生成KeyInfo文件 Path keyInfo = genKeyInfo(workDir.toString()); // 构建命令 List<String> commands = new ArrayList<>(); commands.add("ffmpeg"); commands.add("-i") ;commands.add(source); // 源文件 commands.add("-c:v") ;commands.add("libx264"); // 视频编码为H264 commands.add("-c:a") ;commands.add("copy"); // 音频间接copy commands.add("-hls_key_info_file") ;commands.add(keyInfo.toString()); // 指定密钥文件门路 commands.add("-hls_time") ;commands.add(config.getTsSeconds()); // ts切片大小 commands.add("-hls_playlist_type") ;commands.add("vod"); // 点播模式 commands.add("-hls_segment_filename") ;commands.add("%06d.ts"); // ts切片文件名称 if (StringUtils.hasText(config.getCutStart())) { commands.add("-ss") ;commands.add(config.getCutStart()); // 开始工夫 } if (StringUtils.hasText(config.getCutEnd())) { commands.add("-to") ;commands.add(config.getCutEnd()); // 完结工夫 } commands.add("index.m3u8"); // 生成m3u8文件 // 构建过程 Process process = new ProcessBuilder() .command(commands) .directory(workDir.toFile()) .start() ; // 读取过程规范输入 new Thread(() -> { try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()))) { String line = null; while ((line = bufferedReader.readLine()) != null) { LOGGER.info(line); } } catch (IOException e) { } }).start(); // 读取过程异样输入 new Thread(() -> { try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process.getErrorStream()))) { String line = null; while ((line = bufferedReader.readLine()) != null) { LOGGER.info(line); } } catch (IOException e) { } }).start(); // 阻塞直到工作完结 if (process.waitFor() != 0) { throw new RuntimeException("视频切片异样"); } // 切出封面 if (!screenShots(source, String.join(File.separator, destFolder, "poster.jpg"), config.getPoster())) { throw new RuntimeException("封面截取异样"); } // 获取视频信息 MediaInfo mediaInfo = getMediaInfo(source); if (mediaInfo == null) { throw new RuntimeException("获取媒体信息异样"); } // 生成index.m3u8文件 genIndex(String.join(File.separator, destFolder, "index.m3u8"), "ts/index.m3u8", mediaInfo.getFormat().getBitRate()); // 删除keyInfo文件 Files.delete(keyInfo); } /** * 获取视频文件的媒体信息 * @param source * @return * @throws IOException * @throws InterruptedException */ public static MediaInfo getMediaInfo(String source) throws IOException, InterruptedException { List<String> commands = new ArrayList<>(); commands.add("ffprobe"); commands.add("-i") ;commands.add(source); commands.add("-show_format"); commands.add("-show_streams"); commands.add("-print_format") ;commands.add("json"); Process process = new ProcessBuilder(commands) .start(); MediaInfo mediaInfo = null; try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()))) { mediaInfo = new Gson().fromJson(bufferedReader, MediaInfo.class); } catch (IOException e) { e.printStackTrace(); } if (process.waitFor() != 0) { return null; } return mediaInfo; } /** * 截取视频的指定工夫帧，生成图片文件 * @param source 源文件 * @param file 图片文件 * @param time 截图工夫 HH:mm:ss.[SSS] * @throws IOException * @throws InterruptedException */ public static boolean screenShots(String source, String file, String time) throws IOException, InterruptedException { List<String> commands = new ArrayList<>(); commands.add("ffmpeg"); commands.add("-i") ;commands.add(source); commands.add("-ss") ;commands.add(time); commands.add("-y"); commands.add("-q:v") ;commands.add("1"); commands.add("-frames:v") ;commands.add("1"); commands.add("-f"); ;commands.add("image2"); commands.add(file); Process process = new ProcessBuilder(commands) .start(); // 读取过程规范输入 new Thread(() -> { try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()))) { String line = null; while ((line = bufferedReader.readLine()) != null) { LOGGER.info(line); } } catch (IOException e) { } }).start(); // 读取过程异样输入 new Thread(() -> { try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process.getErrorStream()))) { String line = null; while ((line = bufferedReader.readLine()) != null) { LOGGER.error(line); } } catch (IOException e) { } }).start(); return process.waitFor() == 0; }}UploadController，执行转码操作package com.demo.web.controller;import java.io.IOException;import java.nio.file.Files;import java.nio.file.Path;import java.nio.file.Paths;import java.time.LocalDate;import java.time.format.DateTimeFormatter;import java.util.HashMap;import java.util.Map;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Value;import org.springframework.http.HttpStatus;import org.springframework.http.ResponseEntity;import org.springframework.web.bind.annotation.PostMapping;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestPart;import org.springframework.web.bind.annotation.RestController;import org.springframework.web.multipart.MultipartFile;import com.demo.ffmpeg.FFmpegUtils;import com.demo.ffmpeg.TranscodeConfig;@RestController@RequestMapping("/upload")public class UploadController { private static final Logger LOGGER = LoggerFactory.getLogger(UploadController.class); @Value("${app.video-folder}") private String videoFolder; private Path tempDir = Paths.get(System.getProperty("java.io.tmpdir")); /** * 上传视频进行切片解决，返回拜访门路 * @param video * @param transcodeConfig * @return * @throws IOException */ @PostMapping public Object upload (@RequestPart(name = "file", required = true) MultipartFile video, @RequestPart(name = "config", required = true) TranscodeConfig transcodeConfig) throws IOException { LOGGER.info("文件信息：title={}, size={}", video.getOriginalFilename(), video.getSize()); LOGGER.info("转码配置：{}", transcodeConfig); // 原始文件名称，也就是视频的题目 String title = video.getOriginalFilename(); // io到临时文件 Path tempFile = tempDir.resolve(title); LOGGER.info("io到临时文件：{}", tempFile.toString()); try { video.transferTo(tempFile); // 删除后缀 title = title.substring(0, title.lastIndexOf(".")); // 依照日期生成子目录 String today = DateTimeFormatter.ofPattern("yyyyMMdd").format(LocalDate.now()); // 尝试创立视频目录 Path targetFolder = Files.createDirectories(Paths.get(videoFolder, today, title)); LOGGER.info("创立文件夹目录：{}", targetFolder); Files.createDirectories(targetFolder); // 执行转码操作 LOGGER.info("开始转码"); try { FFmpegUtils.transcodeToM3u8(tempFile.toString(), targetFolder.toString(), transcodeConfig); } catch (Exception e) { LOGGER.error("转码异样：{}", e.getMessage()); Map<String, Object> result = new HashMap<>(); result.put("success", false); result.put("message", e.getMessage()); return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(result); } // 封装后果 Map<String, Object> videoInfo = new HashMap<>(); videoInfo.put("title", title); videoInfo.put("m3u8", String.join("/", "", today, title, "index.m3u8")); videoInfo.put("poster", String.join("/", "", today, title, "poster.jpg")); Map<String, Object> result = new HashMap<>(); result.put("success", true); result.put("data", videoInfo); return result; } finally { // 始终删除临时文件 Files.delete(tempFile); } }}index.html，客户端<html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <script src="https://cdn.jsdelivr.net/hls.js/latest/hls.min.js"></script> </head> <body> 抉择转码文件： <input name="file" type="file" accept="video/*" onchange="upload(event)"> <hr/> <video id="video" width="500" height="400" controls="controls"></video> </body> <script> const video = document.getElementById('video'); function upload (e){ let files = e.target.files if (!files) { return } // TODO 转码配置这里固定死了 var transCodeConfig = { poster: "00:00:00.001", // 截取第1毫秒作为封面 tsSeconds: 15, cutStart: "", cutEnd: "" } // 执行上传 let formData = new FormData(); formData.append("file", files[0]) formData.append("config", new Blob([JSON.stringify(transCodeConfig)], {type: "application/json; charset=utf-8"})) fetch('/upload', { method: 'POST', body: formData }) .then(resp => resp.json()) .then(message => { if (message.success){ // 设置封面 video.poster = message.data.poster; // 渲染到播放器 var hls = new Hls(); hls.loadSource(message.data.m3u8); hls.attachMedia(video); } else { alert("转码异样，详情查看控制台"); console.log(message.message); } }) .catch(err => { alert("转码异样，详情查看控制台"); throw err }) } </script></html>应用在配置文件中，配置到本地视频目录后启动关上页面 localhost点击【抉择文件】，抉择一个视频文件进行上传，期待执行结束（没有做加载动画）后端转码实现后，会主动把视频信息加载到播放器，此时能够手动点击播放按钮进行播放能够关上控制台，查看上传进度，以及播放时的网络加载信息
...