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();
}
