教你用Java来实现把视频批量转换为gif动态图

现如今短视频非常火热，里面的内容层出不穷，而且还是新颖奇特。有时候对于某个视频的感官还不错，就想把它存下来当做手机壁纸或是电脑壁纸。下面，就和大家分享一下如何用Java来实现把视频转换为gif动态图。

效果图

本功能实现需要用到第三方jar包 jave，JAVE 是java调用FFmpeg的封装工具。

spring boot项目pom文件中添加以下依赖

    <!-- 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单类实现代码，复制到Spring boot项目中，用idea编辑器主方法运行。

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");
    }
 
 
}

运行结果截图