Re: Release of new ``tight'' encoding available.

From: Kumaran Narayanan (kums@cisco.com)
Date: Sat Aug 26 2000 - 16:26:05 EDT

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    Hi,
        Sorry for asking, but I am tired of compiling the code on SunOS..

        Does anyone have Xvnc binary for SunOS 5.6 ( Generic_105181-10 sun4u sparc
        SUNW,Ultra-2) and vncviewer binary for WinNT 4.0?

        (with the following compression code)

        I would really appreciate your kind help in this regard.

    thanks,
    kumaran

    >
    > Hello,
    >
    > I'm glad to announce that I've finished main part of my VNC
    > compression project. All the source code and some comparison results
    > are available from the project homepage:
    >
    > http://www.ce.cctpu.edu.ru/vnc/
    >
    > Unix code is currently based on the AT&T's vnc-3.3.3p1 Unix source
    > distribution, Windows part is based on the TridiaVNC Windows source.
    > Primary development platform was Linux, so the Unix code is much
    > better tested compared to Windows part.
    >
    > New ``tight'' encoding usually achieves compression ratios 5..30%
    > higher compared to pure zlib compression (as implemented in the
    > TridiaVNC distributions) and it seems to be a little faster than zlib
    > at both server and client sides in most cases. I plan to continue the
    > work on this encoding and I believe I'm able to improve both
    > compression ratios and encoder/decoder speed much further (while new
    > releases will remain compatible with current version).
    >
    > The Unix patch also adds new -tunnel option to vncviewer for automatic
    > SSH tunneling. Tunneling command can be provided in VNC_TUNNEL_CMD
    > environment variable, or compiled-in default command (invoking SSH
    > port forwarding) will be used. Note that tunneling command MUST
    > contain %H, %R and %L patterns which will be substituted with remote
    > hostname, remote port and local port accordingly. Default command is
    > "/usr/bin/ssh -f -L %L:%H:%R %H sleep 20".
    >
    > It is the first time this code goes public, so please consider it to
    > be BETA quality. I'll be glad to hear your questions, opinions and
    > suggestions.
    >
    > --
    > With Best Wishes,
    > Constantin
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    > ---------------------------------------------------------------------
    >
    > 

    -- 
Kumaran Narayanan            
Cisco Systems Inc.
Voice (408)853-8658
Mail  kums@cisco.com
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