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nintha / webp-imageio-core

Java Image I/O reader and writer for the Google WebP image format without system native libs
Apache License 2.0
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does this mean animated webp can not convert to gif? #3

Closed VINO42 closed 5 years ago

VINO42 commented 5 years ago

I just try to convert an animated webp file to a animated gif file,when run the demo code something happened,this is the demo:

   `public static void main(String[] args) throws IOException {

    String inputPath = "/demo01.webp";String outputGifPath = "test_pic/test_.gif";

    // Obtain a WebP ImageReader instance
    ImageReader reader = ImageIO.getImageReadersByMIMEType("image/webp").next();
    // Configure decoding parameters
    WebPReadParam readParam = new WebPReadParam();
    readParam.setBypassFiltering(true);

    // Configure the input on the ImageReader
    try {
        reader.setInput(new FileImageInputStream(new File(inputPath)));
    } catch (IOException e) {
        e.printStackTrace();
    }

    // Decode the image
    BufferedImage image = reader.read(0, readParam);
    ImageIO.write(image, "gif", new File(outputGifPath));
}`

and this is the exception Exception in thread "main" java.io.IOException: Decode returned code VP8_STATUS_UNSUPPORTED_FEATURE at com.luciad.imageio.webp.WebP.decode(WebP.java:61) at com.luciad.imageio.webp.WebPReader.read(WebPReader.java:158) at com.andy.main(Test.java:281)

should I compile the libwebp1.0.0 or the newer? 0.1.0 版本用的库是 libwebp0.4.2，比较老了， 你可以自己编译 mac 环境的 libwebp1.0.0 的动态链接库。我手上没有 mac 机器，无能为力。 https://segmentfault.com/a/1190000016324137

nintha commented 5 years ago

yep, you can compile the libwebp1.0.0 or the newer.