大佬们，image decode failed 怎么解决

我把PiexlMap的数据转为byte[] 后存在了服务器的mysql的blob类型里

public static PixelMap byte2PixelMap(byte[] bytes){
        ImageSource.DecodingOptions decodingOptions = new ImageSource.DecodingOptions();
        ImageSource.SourceOptions srcOpts = new ImageSource.SourceOptions();
        //错误提示出现在下面
        srcOpts.formatHint = "image/png";
        decodingOptions.rotateDegrees = 0.0f;
        decodingOptions.desiredPixelFormat = PixelFormat.ARGB_8888;

        return ImageSource.create(bytes, srcOpts).createPixelmap(decodingOptions);

    }
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，存没有报错，但是往回取然后从byte[]转换成PiexlMap后就报错了：然后就摸不着头脑，请大佬指点

java.lang.RuntimeException: Unable to resume activity {com.daqin.gamedemo/com.daqin.gamedemo.MainAbilityShellActivity}: ohos.media.image.SourceDataMalformedException: image decode failed

......

Caused by: ohos.media.image.SourceDataMalformedException: image decode failed
        at ohos.media.image.ImageSource.nativeCreateImageSource(Native Method)
        at ohos.media.image.ImageSource.create(ImageSource.java:598)
        at ohos.media.image.ImageSource.create(ImageSource.java:494)
        at com.daqin.gamedemo.utils.byte2PixelMap(util.java:376)