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Default to single-scan DC

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People don't like green faces
This commit is contained in:
Kornel
2021-02-25 21:43:59 +00:00
parent ceb4f8e97c
commit 9f01177f72
2 changed files with 5 additions and 5 deletions
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2
README-mozilla.txt
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@@ -185,7 +185,7 @@ Integer Extension Parameters Supported by mozjpeg
8 = Table from: An Improved Detection Model for DCT Coefficient Quantization 8 = Table from: An Improved Detection Model for DCT Coefficient Quantization
(1993) Peterson, Ahumada and Watson (1993) Peterson, Ahumada and Watson
* JINT_DC_SCAN_OPT_MODE (default: 1) * JINT_DC_SCAN_OPT_MODE (default: 0)
Specifies the DC scan optimization mode. The following options are Specifies the DC scan optimization mode. The following options are
available: available:
0 = One scan for all components 0 = One scan for all components

2
jcparam.c
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@@ -488,7 +488,7 @@ jpeg_set_defaults (j_compress_ptr cinfo)
jpeg_default_colorspace(cinfo); jpeg_default_colorspace(cinfo);
cinfo->master->dc_scan_opt_mode = 1; cinfo->master->dc_scan_opt_mode = 0;
#ifdef C_PROGRESSIVE_SUPPORTED #ifdef C_PROGRESSIVE_SUPPORTED
if (cinfo->master->compress_profile == JCP_MAX_COMPRESSION) { if (cinfo->master->compress_profile == JCP_MAX_COMPRESSION) {