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September 2002

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2002.09.05 09:56 "Decode group4", by Jan Edmundson
2002.09.05 10:21 "Re: Decode group4", by Frank D Cringle
2002.09.05 11:56 "Re: Decode group4", by Scott Wagner
2002.09.05 16:34 "Re: Decode group4", by Lee Howard
2002.09.05 17:45 "Re: Decode group4", by Frank D Cringle
2002.09.05 18:02 "Re: Decode group4", by Lee Howard
2002.09.09 12:27 "Re: Decode group4", by Jan Edmundson
2002.09.05 13:16 "Re: Decode group4", by Peter Nielsen

2002.09.05 09:56 "Decode group4", by Jan Edmundson

Hi all,
I am currently in the process of creating a class implementation of the fax
group 4 codec. I have a class namned CCodec with 2 methods Decode and
Encode. I am focusing on the decoding bit at the moment. I have a hypothesis
that the Decode method would be sufficently declared as follows: 
Decode( BYTE* pDest, DWORD dwDestSize, BYTE* pSrc, DWORD dwSrcSize, DWORD
dwRowSize );
Dest should be uncompressed and Src should be compressed.

Is there someone out there that has a special intrest in the tiff decoding ?
I have ripped code out of libtiff but would like to get a clearer picture of
what some of the variables is for in libtiff group 4 decoding.

/Janne.