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获取视频时长

千妈小语 2022-10-02 阅读 89
  • ​​参考1​​
  • ​​参考2​​
  • ​​参考3​​
  • 下载jar到本地

jave

  • 导入本地仓库

mvn install:install-file -Dfile=jave-1.0.2.jar -DgroupId=joinery -DartifactId=jave -Dversion=1.0.2 -Dpackaging=jar

  • 工程pom中导入该依赖

  <dependency>
<groupId>it.sauronsoftware</groupId>
<artifactId>jave</artifactId>
<version>1.0.2</version>
</dependency>

  • 获取视频时长

import it.sauronsoftware.jave.Encoder;
import it.sauronsoftware.jave.MultimediaInfo;
import java.io.File;

@GetMapping(value = "/getVideoLength")
@ApiOperation(value="获取视频时长")
public Object getVideoLength(){
File source = new File("C:\\Users\\ychen\\Videos\\test\\video1.flv");
Encoder encoder = new Encoder();
String length = "";
try {
MultimediaInfo m = encoder.getInfo(source);
long ls = m.getDuration()/1000;
int hour = (int) (ls/3600);
int minute = (int) (ls%3600)/60;
int second = (int) (ls-hour*3600-minute*60);
length =hour+"时"+minute+"分"+second+"秒";
} catch (Exception e) {
e.printStackTrace();
return "计算出错";
}
return new JSONResult(length);
}

  • 将MultipartFile转File

import org.springframework.web.multipart.MultipartFile;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

public class MultipartFileToFile {

// MultipartFile 转 File
public static File multipartFileToFile(MultipartFile file) throws Exception {

File toFile = null;
if (file.equals("") || file.getSize() <= 0) {
file = null;
} else {
InputStream ins = null;
ins = file.getInputStream();
toFile = new File(file.getOriginalFilename());
inputStreamToFile(ins, toFile);
ins.close();
}
return toFile;
}

//获取流文件
private static void inputStreamToFile(InputStream ins, File file) {
try {
OutputStream os = new FileOutputStream(file);
int bytesRead = 0;
byte[] buffer = new byte[8192];
while ((bytesRead = ins.read(buffer, 0, 8192)) != -1) {
os.write(buffer, 0, bytesRead);
}
os.close();
ins.close();
} catch (Exception e) {
e.printStackTrace();
}
}

// 删除本地临时文件
public static void delteTempFile(File file) {
if (file != null) {
File del = new File(file.toURI());
del.delete();
}
}

}

  • 获取视频时长优化

    @GetMapping(value = "/getVideoLength")
@ApiOperation(value="获取视频时长")
public Object getVideoLength(@RequestParam("file") MultipartFile file) throws IOException {
File toFile = null;
if (file.equals("") || file.getSize() <= 0) {
file = null;
} else {
InputStream ins = null;
ins = file.getInputStream();
toFile = new File(file.getOriginalFilename());
inputStreamToFile(ins, toFile);
ins.close();
}
// 计算时长
Encoder encoder = new Encoder();
String length = "";
try {
MultimediaInfo m = encoder.getInfo(toFile);
long ls = m.getDuration()/1000;
int hour = (int) (ls/3600);
int minute = (int) (ls%3600)/60;
int second = (int) (ls-hour*3600-minute*60);
length =hour+"时"+minute+"分"+second+"秒";
} catch (Exception e) {
e.printStackTrace();
return "计算出错";
}
// 删除临时文件
delteTempFile(toFile);
return new JSONResult(length);
}



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