Java基于animated

　　工作中, gif动图转图片/图片集转gif

　　pom依赖很简单

1<!-- gif -->
2        <dependency>
3            <groupId>com.madgag</groupId>
4            <artifactId>animated-gif-lib</artifactId>
5            <version>1.4</version>
6        </dependency>

　　简单的工具类实现

1import com.madgag.gif.fmsware.AnimatedGifEncoder;
2import com.madgag.gif.fmsware.GifDecoder;
3
4import javax.imageio.ImageIO;
5import java.awt.*;
6import java.awt.image.BufferedImage;
7import java.io.File;
8import java.io.IOException;
9import java.util.ArrayList;
10import java.util.List;
11
12public class GifOperator {
13
14    public static void main(String[] args) throws IOException {
15
16        String outputPath = "/home/lab/test/001.gif";
17        String imagePath = "/home/lab/test/33.gif";
18        reverseGif(imagePath,outputPath);
19        // Gif转图片
20        String dirPath = "/home/lab/test/22/";
21        gifToImages(imagePath,dirPath);
22        List<BufferedImage> images = new ArrayList<>();
23        for (int i = 0 ; i < 111;i++) {
24            File outFile = new File(dirPath + i + ".png");
25            BufferedImage image = ImageIO.read(outFile);
26            images.add(image);
27        }
28        imagesToGif(images,"/home/lab/test/res.gif");
29    }
30
31    /**
32     * 多图片转gif
33     * @param imageList
34     * @param outputPath
35     * @throws IOException
36     */
37    static void imagesToGif(List<BufferedImage> imageList, String outputPath) throws IOException {
38        // 拆分一帧一帧的压缩之后合成
39        AnimatedGifEncoder encoder = new AnimatedGifEncoder();
40        encoder.start(outputPath);
41        encoder.setRepeat(0);
42        for (BufferedImage bufferedImage :
43                imageList) {
44            encoder.setDelay(100);
45            int height = bufferedImage.getHeight();
46            int width = bufferedImage.getWidth();
47            BufferedImage zoomImage = new BufferedImage(width, height, 3);
48            Image image = bufferedImage.getScaledInstance(width, height, Image.SCALE_SMOOTH);
49            Graphics gc = zoomImage.getGraphics();
50            gc.setColor(Color.WHITE);
51            gc.drawImage(image, 0, 0, null);
52            encoder.addFrame(zoomImage);
53        }
54        encoder.finish();
55        File outFile = new File(outputPath);
56        BufferedImage image = ImageIO.read(outFile);
57        ImageIO.write(image, outFile.getName(), outFile);
58    }
59
60    /**
61     * Gif转图片集
62     * @param imagePath
63     * @param outputDirPath
64     * @throws IOException
65     */
66    static void gifToImages(String imagePath,String outputDirPath) throws IOException {
67        GifDecoder decoder = new GifDecoder();
68        int status = decoder.read(imagePath);
69        if (status != GifDecoder.STATUS_OK) {
70            throw new IOException("read image " + imagePath + " error!");
71        }
72        for (int i = 0; i < decoder.getFrameCount();i++) {
73            BufferedImage bufferedImage = decoder.getFrame(i);// 获取每帧BufferedImage流
74            File outFile = new File(outputDirPath + i + ".png");
75            ImageIO.write(bufferedImage, "png", outFile);
76        }
77    }
78
79    /**
80     * 视频倒放
81     * @param imagePath
82     * @param outputPath
83     * @throws IOException
84     */
85    public static void reverseGif(String imagePath,String outputPath) throws IOException {
86        GifDecoder decoder = new GifDecoder();
87        int status = decoder.read(imagePath);
88        if (status != GifDecoder.STATUS_OK) {
89            throw new IOException("read image " + imagePath + " error!");
90        }
91        // 拆分一帧一帧的压缩之后合成
92        AnimatedGifEncoder encoder = new AnimatedGifEncoder();
93        encoder.start(outputPath);
94        encoder.setRepeat(decoder.getLoopCount());
95        for (int i = decoder.getFrameCount() -1; i >= 0; i--) {
96            encoder.setDelay(decoder.getDelay(i));// 设置播放延迟时间
97            BufferedImage bufferedImage = decoder.getFrame(i);// 获取每帧BufferedImage流
98            int height = bufferedImage.getHeight();
99            int width = bufferedImage.getWidth();
100            BufferedImage zoomImage = new BufferedImage(width, height, bufferedImage.getType());
101            Image image = bufferedImage.getScaledInstance(width, height, Image.SCALE_SMOOTH);
102            Graphics gc = zoomImage.getGraphics();
103            gc.setColor(Color.WHITE);
104            gc.drawImage(image, 0, 0, null);
105            encoder.addFrame(zoomImage);
106        }
107        encoder.finish();
108        File outFile = new File(outputPath);
109        BufferedImage image = ImageIO.read(outFile);
110        ImageIO.write(image, outFile.getName(), outFile);
111    }
112
113}