安卓中webp格式图片转换格式上传服务器（包含.jar和.so文件）

来源：互联网发布：火箭模拟软件编辑：程序博客网时间：2024/06/07 01:39

/** * Created by pc on 2017/8/24. * 转换图片格式为webp的图片、这种格式要么服务器处理、要么客户端本地处理、否则上传不支持

http://download.csdn.net/download/dsb2008dsb/9813264（.jar和.so下载地址） */public class WebpImageToPngImageUtils {    static {        System.loadLibrary("webp");    }    public static byte[] loadFileAsByteArray(String filePath) {        File file = new File(filePath);        byte[] data = new byte[(int) file.length()];        try {            FileInputStream inputStream;            inputStream = new FileInputStream(file);            inputStream.read(data);            inputStream.close();        } catch (Exception e) {            e.printStackTrace();        }        return data;    }    public static Bitmap webpToBitmap(byte[] encoded) {        int[] width = new int[]{0};        int[] height = new int[]{0};        byte[] decoded = libwebp.WebPDecodeARGB(encoded, encoded.length, width, height);        //byte[] decoded = libwebp.WebPDecodeARGB(encoded, encoded.length, width, height);        int[] pixels = new int[decoded.length / 4];        ByteBuffer.wrap(decoded).asIntBuffer().get(pixels);        return Bitmap.createBitmap(pixels, width[0], height[0], Bitmap.Config.ARGB_8888);    }    public static File changeImageType(File file) {        File newFile;        //webp图片格式判断代码：        BitmapFactory.Options options = new BitmapFactory.Options();        options.inJustDecodeBounds = true;        BitmapFactory.decodeFile(file.getAbsolutePath(), options);        String type = options.outMimeType;        if (type.equals("image/webp")) {//        Bitmap转png代码：            Bitmap bp = webpToBitmap(loadFileAsByteArray(file.getAbsolutePath()));            String c = file.getParent();            newFile = new File(c + File.separator + System.currentTimeMillis() + ".png");            if (newFile.exists()) {                newFile.delete();            }            FileOutputStream out;            try {                out = new FileOutputStream(newFile);                if (bp.compress(Bitmap.CompressFormat.PNG, 90, out)) {                    out.flush();                    out.close();                }                return newFile;            } catch (FileNotFoundException e) {                e.printStackTrace();            } catch (IOException e) {                e.printStackTrace();            }        }        return file;    }}

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