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

Add -nojfif param

Browse Source 
With this parem do not write JFIF APP0 marker segment. Reduce size in 18 bytes.  This is a mandatory marker, but no error in know programs if are lost. Safe for web use.
This commit is contained in:
JosePineiro
2018-06-04 21:06:40 +02:00
committed by GitHub
parent b85de60a9f
commit fce0382181
1 changed files with 4 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
cjpeg.c
View File

@@ -196,6 +196,7 @@ usage (void)
fprintf(stderr, " -tune-ms-ssim Tune trellis optimization for MS-SSIM\n");
fprintf(stderr, "Switches for advanced users:\n");
fprintf(stderr, " -noovershoot Disable black-on-white deringing via overshoot\n");
fprintf(stderr, " -nojfif Do not write JFIF. Reduce size in 18 bytes but break standar. No know problems in web use.\n");
#ifdef C_ARITH_CODING_SUPPORTED
fprintf(stderr, " -arithmetic Use arithmetic coding\n");
#endif
@@ -583,6 +584,9 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
} else if (keymatch(arg, "noovershoot", 11)) {
jpeg_c_set_bool_param(cinfo, JBOOLEAN_OVERSHOOT_DERINGING, FALSE);
} else if (keymatch(arg, "nojfif", 6)) {
cinfo->write_JFIF_header = 0;
} else {
fprintf(stderr, "%s: unknown option '%s'\n", progname, arg);
usage(); /* bogus switch */