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I have regenerated the tables in such a way as to build broader "dc" tables. The new generator code is as follows, and the optimal table was generated with a quality of 99.
#ifndef generate_universal_tables
long total = 0;
int has_over_15 = 0;
for( i = 0; i < 256; i++ )
{
if( freq[i] > 0 )
printf( "freq[%d] = %d\n", i, freq[i] );
total +=...
2009-07-25 04:20:03 UTC by warmerda
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warmerda committed patchset 30 of module libjpeg to the libjpeg CVS repository, changing 1 files.
2009-07-25 04:19:11 UTC by warmerda
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warmerda committed patchset 29 of module libjpeg to the libjpeg CVS repository, changing 1 files.
2009-07-12 15:22:00 UTC by warmerda
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I have decided not to try and adjust the libjpeg configuration logic. The macro in jmorecfg.h is sufficient.
Closing.
2009-06-27 18:31:20 UTC by warmerda
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hi,
there was a long discussion of this problem in these threads:
http://lists.fedoraproject.org/pipermail/fedora-mingw/2009-May/001380.html
http://sourceforge.net/mailarchive/message.php?msg_name=4A12C61E.9010701%40lfarkas.org
http://sourceforge.net/mailarchive/message.php?msg_name=20090424140822.GA21954%40amd.home.annexia.org
but i try to summarize the problem here.
libjpeg contains two...
2009-06-27 14:44:49 UTC by lfarkas
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warmerda committed patchset 28 of module libjpeg to the libjpeg CVS repository, changing 3 files.
2009-06-25 18:34:46 UTC by warmerda
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The proposed changes have been applied in jchuff.c (1.2) and jdhuff.c (1.2).
2009-06-23 18:53:23 UTC by warmerda
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warmerda committed patchset 27 of module libjpeg to the libjpeg CVS repository, changing 3 files.
2009-06-23 18:52:48 UTC by warmerda
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Some code in jchuff.c and jdhuff.c does not keep next_input_byte and bytes_in_buffer up to date in the source structure. This is not a problem for the read/write implementations provided with libjpeg which seem to assume buffers are always completely consumed, but it is a problem with some implementations of the read/write code that need to deal with libjpeg versions (ie. IPP) that do not...
2009-06-23 18:38:09 UTC by warmerda
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Patch commited updating these include files:
jchuff.h jdct.h jdhuff.h jmemsys.h jpegint.h jpeglib.h
I'm leaving this open since I still need to contemplate changes to configure, and jmorecfg.h.
2009-06-23 13:49:02 UTC by warmerda
