1、导入架包

        <!-- jave 核心依赖 --><dependency><groupId>ws.schild</groupId><artifactId>jave-core</artifactId><version>2.4.6</version></dependency><!-- 根据不同操作系统引入不同FFmpeg包 --><!-- window32位 FFmpeg --><dependency><groupId>ws.schild</groupId><artifactId>jave-native-win32</artifactId><version>2.4.6</version></dependency><!-- window64位 FFmpeg --><dependency><groupId>ws.schild</groupId><artifactId>jave-native-win64</artifactId><version>2.4.6</version></dependency><!-- linux64位 FFmpeg --><dependency><groupId>ws.schild</groupId><artifactId>jave-native-linux64</artifactId><version>2.4.6</version></dependency><!-- macos64位 FFmpeg --><dependency><groupId>ws.schild</groupId><artifactId>jave-native-osx64</artifactId><version>2.4.6</version></dependency>

2、创建FFmpegFileInfo类（类的位置ws.schild.jave）

 

package ws.schild.jave;import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;public class FFmpegFileInfo {private static final Log LOG = LogFactory.getLog(MultimediaObject.class);private static final Pattern SIZE_PATTERN = Pattern.compile("(\\d+)x(\\d+)", 2);private static final Pattern FRAME_RATE_PATTERN = Pattern.compile("([\\d.]+)\\s+(?:fps|tbr)", 2);private static final Pattern BIT_RATE_PATTERN = Pattern.compile("(\\d+)\\s+kb/s", 2);private static final Pattern SAMPLING_RATE_PATTERN = Pattern.compile("(\\d+)\\s+Hz", 2);private static final Pattern CHANNELS_PATTERN = Pattern.compile("(mono|stereo|quad)", 2);private final FFMPEGLocator locator;private File inputFile;public FFmpegFileInfo(File input) {this.locator = new DefaultFFMPEGLocator();this.inputFile = input;}public File getFile() {return this.inputFile;}public void setFile(File file) {this.inputFile = file;}public FFmpegFileInfo(File input, FFMPEGLocator locator) {this.locator = locator;this.inputFile = input;}public MultimediaInfo getInfo(String url) throws InputFormatException, EncoderException {FFMPEGExecutor ffmpeg = this.locator.createExecutor();ffmpeg.addArgument("-i");ffmpeg.addArgument(url);try {ffmpeg.execute();} catch (IOException var9) {throw new EncoderException(var9);}MultimediaInfo var4;try {RBufferedReader reader = new RBufferedReader(new InputStreamReader(ffmpeg.getErrorStream()));var4 = this.parseMultimediaInfo(this.inputFile, reader);} finally {ffmpeg.destroy();}return var4;}private MultimediaInfo parseMultimediaInfo(File source, RBufferedReader reader) throws InputFormatException, EncoderException {Pattern p1 = Pattern.compile("^\\s*Input #0, (\\w+).+$\\s*", 2);Pattern p2 = Pattern.compile("^\\s*Duration: (\\d\\d):(\\d\\d):(\\d\\d)\\.(\\d\\d).*$", 2);Pattern p3 = Pattern.compile("^\\s*Stream #\\S+: ((?:Audio)|(?:Video)|(?:Data)): (.*)\\s*$", 2);Pattern p4 = Pattern.compile("^\\s*Metadata:", 2);MultimediaInfo info = null;try {int step = 0;while(true) {String line = reader.readLine();LOG.debug("Output line: " + line);if (line == null) {break;}Matcher m;String type;switch(step) {case 0:String token = source.getAbsolutePath() + ": ";if (line.startsWith(token)) {String message = line.substring(token.length());throw new InputFormatException(message);}Matcher m = p1.matcher(line);if (m.matches()) {type = m.group(1);info = new MultimediaInfo();info.setFormat(type);++step;}break;case 1:m = p2.matcher(line);if (m.matches()) {long hours = (long)Integer.parseInt(m.group(1));long minutes = (long)Integer.parseInt(m.group(2));long seconds = (long)Integer.parseInt(m.group(3));long dec = (long)Integer.parseInt(m.group(4));long duration = dec * 10L + seconds * 1000L + minutes * 60L * 1000L + hours * 60L * 60L * 1000L;info.setDuration(duration);++step;}break;case 2:m = p3.matcher(line);p4.matcher(line);if (m.matches()) {type = m.group(1);String specs = m.group(2);StringTokenizer st;int i;String token;boolean parsed;Matcher m2;int bitRate;if ("Video".equalsIgnoreCase(type)) {VideoInfo video = new VideoInfo();st = new StringTokenizer(specs, ",");for(i = 0; st.hasMoreTokens(); ++i) {token = st.nextToken().trim();if (i == 0) {video.setDecoder(token);} else {parsed = false;m2 = SIZE_PATTERN.matcher(token);if (!parsed && m2.find()) {bitRate = Integer.parseInt(m2.group(1));int height = Integer.parseInt(m2.group(2));video.setSize(new VideoSize(bitRate, height));parsed = true;}m2 = FRAME_RATE_PATTERN.matcher(token);if (!parsed && m2.find()) {try {float frameRate = Float.parseFloat(m2.group(1));video.setFrameRate(frameRate);} catch (NumberFormatException var22) {LOG.info("Invalid frame rate value: " + m2.group(1), var22);}parsed = true;}m2 = BIT_RATE_PATTERN.matcher(token);if (!parsed && m2.find()) {bitRate = Integer.parseInt(m2.group(1));video.setBitRate(bitRate * 1000);parsed = true;}}}info.setVideo(video);} else if ("Audio".equalsIgnoreCase(type)) {AudioInfo audio = new AudioInfo();st = new StringTokenizer(specs, ",");for(i = 0; st.hasMoreTokens(); ++i) {token = st.nextToken().trim();if (i == 0) {audio.setDecoder(token);} else {parsed = false;m2 = SAMPLING_RATE_PATTERN.matcher(token);if (!parsed && m2.find()) {bitRate = Integer.parseInt(m2.group(1));audio.setSamplingRate(bitRate);parsed = true;}m2 = CHANNELS_PATTERN.matcher(token);if (!parsed && m2.find()) {String ms = m2.group(1);if ("mono".equalsIgnoreCase(ms)) {audio.setChannels(1);} else if ("stereo".equalsIgnoreCase(ms)) {audio.setChannels(2);} else if ("quad".equalsIgnoreCase(ms)) {audio.setChannels(4);}parsed = true;}m2 = BIT_RATE_PATTERN.matcher(token);if (!parsed && m2.find()) {bitRate = Integer.parseInt(m2.group(1));audio.setBitRate(bitRate * 1000);parsed = true;}}}info.setAudio(audio);}}}if (line.startsWith("frame=")) {reader.reinsertLine(line);break;}}} catch (IOException var23) {throw new EncoderException(var23);}if (info == null) {throw new InputFormatException();} else {return info;}}
}

3、打包把类打成class文件放到本地的Maven仓库（如果在测试类中使用跳过此步）

 4、测试

String url="https://xxx.mp4";File mediaFile = new File(url);FFmpegFileInfo ffmpegFileInfo = new FFmpegFileInfo(mediaFile);MultimediaInfo info = null;try {info = ffmpegFileInfo.getInfo(url);long duration = info.getDuration();System.out.println("============="+duration/1000);} catch (EncoderException e) {e.printStackTrace();}