我被搞懵了，接下来我能记得的，就是看见一些数字符号啥的出现了，最后出现一个错误信息，像是'文件格式无效'什么的。

The next thing I know, all these Numbers and symbols show up and I get an error message saying 'invalid file format' or something.

youdao

由于我们不得不违背了以前ico文件格式的兼容性，这也解决了上次提及的人们提供了错误mask的问题。

Since we had to break compatibility with the traditional format for ICO images, we may as well solve the problem we saw last time of people who specify an incorrect mask.

youdao

如果有错误发生，返回值为- 1，例如没有可生成的语音文件格式。

If an error occurs then the result is -1. This can happen, for example, if you ask for a non-existent format.

youdao