Thanks XIAO.

Finally i do:
 ZeroCopyInputStream* input = new 
google::protobuf::io::FileInputStream(filedescriptor);
 google::protobuf::io::GzipInputStream gzip_stream(input, 
GzipInputStream::GZIP);
 Mail.ParseFromZeroCopyStream(&gzip_stream);


And this work perfectly.  I paste the code for someone need.


El lunes, 21 de enero de 2013 12:53:28 UTC+1, David Granados escribió:
>
> Hello.
>
> I compressed a proto object: Mail, in a file named : file.sav.
>
> Now i need get the proto object mail again, from the file.sav.
>
>  I'm tying some like:
>  google::protobuf::io::FileInputStream file_stream(filedescriptor);
>  google::protobuf::io::GzipInputStream gzip_stream(&file_stream, 
> GzipInputStream::GZIP);
>
> I don't know how deserializate from stream to object Mail.
>
> Regards.
>        
>
>

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