This means that the rest of the time, there's simply no data in the stream the colorspace filter works on.

这意味着在其余时间里，colorspace过滤器处理的流中没有数据。

youdao

The first change you might try is to move the colorspace filter onto the path that leads to the JPEG conversion.

需要更改的第一步是将 colorspace 过滤器移动到进行 JPEG 转换的路径中。

youdao