java通过url获取视频时长（无需下载文件）-Toy模板网

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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）

java通过url获取视频时长（无需下载文件）,java,java,音视频

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）

java通过url获取视频时长（无需下载文件）,java,java,音视频文章来源地址https://www.toymoban.com/news/detail-578693.html

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();
        }

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