Track and provide access to "bytes_in" and "bytes_out"

[dralley]

So that it's easy for one to see how many bytes have been written (compressed size) and from how many input bytes (decompressed size).

[natir]

Hello thanks for your issue,

Sorry I'm not sure to understand your idea what you want?

[dralley]

I'd like to write a compressed file, and at the end of that process, know how large the file is, both compressed and uncompressed. The former is easy enough to measure by looking at the size of the compressed file, but the latter is impossible without some kind of wrapper in front of the compression.