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The Independent JPEG Group's JPEG software v8d

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This commit is contained in:
Guido Vollbeding
2012-01-15 00:00:00 +00:00
committed by DRC
parent c39ec149e8
commit 5829cb2398
40 changed files with 1437 additions and 734 deletions
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7
libjpeg.txt
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@@ -1,6 +1,6 @@
USING THE IJG JPEG LIBRARY
Copyright (C) 1994-2010, Thomas G. Lane, Guido Vollbeding.
Copyright (C) 1994-2011, Thomas G. Lane, Guido Vollbeding.
This file is part of the Independent JPEG Group's software.
For conditions of distribution and use, see the accompanying README file.
@@ -1310,8 +1310,9 @@ jpeg_read_header's guess by setting jpeg_color_space. jpeg_read_header also
selects a default output color space based on (its guess of) jpeg_color_space;
set out_color_space to override this. Again, you must select a supported
transformation. jdcolor.c currently supports
YCbCr => GRAYSCALE
YCbCr => RGB
YCbCr => GRAYSCALE
RGB => GRAYSCALE
GRAYSCALE => RGB
YCCK => CMYK
as well as the null transforms. (Since GRAYSCALE=>RGB is provided, an
@@ -2940,7 +2941,7 @@ Library compile-time options
A number of compile-time options are available by modifying jmorecfg.h.
The JPEG standard provides for both the baseline 8-bit DCT process and
a 12-bit DCT process. The IJG code supports 12-bit lossy JPEG if you define
a 12-bit DCT process. The IJG code supports 12-bit JPEG if you define
BITS_IN_JSAMPLE as 12 rather than 8. Note that this causes JSAMPLE to be
larger than a char, so it affects the surrounding application's image data.
The sample applications cjpeg and djpeg can support 12-bit mode only for PPM