VideoRelative
目录
1. Jave2
The JAVE2 (Java Audio Video Encoder) library is Java wrapper on the ffmpeg project. Developers can take take advantage of JAVE2 to transcode audio and video files from a format to another. In example you can transcode an AVI file to a MPEG one, you can change a DivX video stream into a (youtube like) Flash FLV one, you can convert a WAV audio file to a MP3 or a Ogg Vorbis one, you can separate and transcode audio and video tracks, you can resize videos, changing their sizes and proportions and so on.
1.1 video to gif
- pom.xml
<!-- https://mvnrepository.com/artifact/ws.schild/jave-core -->
<dependency>
<groupId>ws.schild</groupId>
<artifactId>jave-core</artifactId>
<version>3.1.1</version>
</dependency>
<!-- 以下依赖根据系统二选一 -->
<!-- win系统平台的依赖 -->
<dependency>
<groupId>ws.schild</groupId>
<artifactId>jave-nativebin-win64</artifactId>
<version>3.1.1</version>
</dependency>
<!-- linux系统平台的依赖 -->
<dependency>
<groupId>ws.schild</groupId>
<artifactId>jave-nativebin-linux64</artifactId>
<version>3.1.1</version>
</dependency>
- java
import ws.schild.jave.Encoder;
import ws.schild.jave.EncoderException;
import ws.schild.jave.MultimediaObject;
import ws.schild.jave.encode.EncodingAttributes;
import ws.schild.jave.encode.VideoAttributes;
import ws.schild.jave.info.MultimediaInfo;
import ws.schild.jave.info.VideoInfo;
import ws.schild.jave.info.VideoSize;
import java.io.File;
import java.util.Arrays;
public class VideoToGIf {
//输出格式
private static final String outputFormat = "gif";
/**
* 获得转化后的文件名
*
* @param sourceFilePath : 源视频文件路径
* @return
*/
public static String getNewFileName(String sourceFilePath) {
File source = new File(sourceFilePath);
String fileName = source.getName().substring(0, source.getName().lastIndexOf("."));
return fileName + "." + outputFormat;
}
/**
* 转化音频格式
*
* @param sourceFilePath : 源视频文件路径
* @param targetFilePath : 目标gif文件路径
* @return
*/
public static void transform(String sourceFilePath, String targetFilePath) {
File source = new File(sourceFilePath);
File target = new File(targetFilePath);
try {
//获得原视频的分辨率
MultimediaObject mediaObject = new MultimediaObject(source);
MultimediaInfo multimediaInfo = mediaObject.getInfo();
VideoInfo videoInfo = multimediaInfo.getVideo();
VideoSize sourceSize = videoInfo.getSize();
//设置视频属性
VideoAttributes video = new VideoAttributes();
video.setCodec(outputFormat);
//设置视频帧率 正常为10 ，值越大越流畅
video.setFrameRate(10);
//设置视频分辨率
VideoSize targetSize = new VideoSize(sourceSize.getWidth() / 5, sourceSize.getHeight() / 5);
video.setSize(targetSize);
//设置转码属性
EncodingAttributes attrs = new EncodingAttributes();
attrs.setVideoAttributes(video);
// 音频转换格式类
Encoder encoder = new Encoder();
encoder.encode(mediaObject, target, attrs);
System.out.println("转换已完成...");
} catch (EncoderException e) {
e.printStackTrace();
}
}
/**
* 批量转化视频格式
*
* @param sourceFolderPath : 源视频文件夹路径
* @param targetFolderPath : 目标gif文件夹路径
* @return
*/
public static void batchTransform(String sourceFolderPath, String targetFolderPath) {
File sourceFolder = new File(sourceFolderPath);
if (sourceFolder.list().length != 0) {
Arrays.asList(sourceFolder.list()).forEach(e -> {
transform(sourceFolderPath + "\\" + e, targetFolderPath + "\\" + getNewFileName(e));
});
}
}
public static void main(String[] args) {
batchTransform("C:\\Users\\tarzan\\Desktop\\video", "C:\\Users\\tarzan\\Desktop\\gif");
}
}