ryan/mozjpeg
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

The Independent JPEG Group's JPEG software v7

Browse Source
This commit is contained in:
Guido Vollbeding
2009-06-27 00:00:00 +00:00
committed by DRC
parent 1e247ac854
commit 5996a25e2f
143 changed files with 56935 additions and 12882 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
jdarith.c
View File

@@ -1,10 +1,9 @@
/*
* jdarith.c
*
* Copyright (C) 1997, Guido Vollbeding <guivol@esc.de>.
* This file is NOT part of the Independent JPEG Group's software
* for legal reasons.
* See the accompanying README file for conditions of distribution and use.
* Developed 1997 by Guido Vollbeding.
* This file is part of the Independent JPEG Group's software.
* For conditions of distribution and use, see the accompanying README file.
*
* This file contains portable arithmetic entropy decoding routines for JPEG
* (implementing the ISO/IEC IS 10918-1 and CCITT Recommendation ITU-T T.81).
@@ -462,11 +461,12 @@ decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
for (;;) {
thiscoef = *block + jpeg_natural_order[k];
if (*thiscoef) { /* previously nonzero coef */
if (arith_decode(cinfo, st + 2))
if (arith_decode(cinfo, st + 2)) {
if (*thiscoef < 0)
*thiscoef += m1;
else
*thiscoef += p1;
}
break;
}
if (arith_decode(cinfo, st + 1)) { /* newly nonzero coef */