Re: gzip/deflate compression/encoding

In <[email protected]> Frank Ellermann <[email protected]> writes:

>Bruce Lilly wrote:

>> Conclusions:
>> 1. binary-to-8bit encoding w/o gzip compression is fine for audio,
>>    image, and video media which already has media-specific compression
>>    (for 8bit transport, avoiding the 37+% expansion of base64)

>Yes

Question:

Are the usual audio, image, etc. formats truly 8bit clean (i.e. are they
guaranteed not to contain NUL or naked CR or LF)? If not, then you are
back to the 37+% expansion of base64.

For that matter, is a gzipped file 8bit clean?

-- 
Charles H. Lindsey ---------At Home, doing my own thing------------------------
Tel: +44 161 436 6131 Fax: +44 161 436 6133   Web: http://www.cs.man.ac.uk/~chl
Email: [email protected]      Snail: 5 Clerewood Ave, CHEADLE, SK8 3JU, U.K.
PGP: 2C15F1A9      Fingerprint: 73 6D C2 51 93 A0 01 E7 65 E8 64 7E 14 A4 AB A5