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* Change jpegoptim to guetzli

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* guetzli compresses JPGs MUCH better than jpegoptim, the output quality is near to the original image
* guetzli needs a lot of CPU and RAM resources to work, but it is compensated with much better reduce of the size of the image
* guetzli's git is here: https://github.com/google/guetzli; it is already in Debian's repos: https://packages.debian.org/search?keywords=guetzli&searchon=names&suite=all&section=all, it has also already been packaged for ALT Linux and Slackware: https://pkgs.org/download/guetzli
* Added Russian translations into the .desktop file
This commit is contained in:
Linux 2017-07-09 12:48:01 +03:00
parent e47888e067
commit 4255dd7b62
5 changed files with 26 additions and 11 deletions
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27
src/trimage/trimage.py
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@ -22,7 +22,8 @@ from multiprocessing import cpu_count
from ui import Ui_trimage
VERSION = "1.0.5"
# change version to 1.1 after replacing jpegoptim with guetzli
VERSION = "1.1"
class StartQT4(QMainWindow):
@ -86,7 +87,7 @@ class StartQT4(QMainWindow):
"""Set up the command line options."""
parser = OptionParser(version="%prog " + VERSION,
description="GUI front-end to compress png and jpg images via "
"optipng, advpng and jpegoptim")
"optipng, advpng and guetzli")
parser.set_defaults(verbose=True)
parser.add_option("-v", "--verbose", action="store_true",
@ -261,10 +262,12 @@ class StartQT4(QMainWindow):
"""Check if the required command line apps exist."""
exe = ".exe" if (sys.platform == "win32") else ""
status = False
retcode = self.safe_call("jpegoptim" + exe + " --version")
if retcode != 0:
status = True
sys.stderr.write("[error] please install jpegoptim")
# guetzli does the compression job much better than jpegoptim (and much slower)
#retcode = self.safe_call("jpegoptim" + exe + " --version")
#if retcode != 0:
#status = True
#sys.stderr.write("[error] please install jpegoptim")
retcode = self.safe_call("optipng" + exe + " -v")
if retcode != 0:
@ -281,6 +284,13 @@ class StartQT4(QMainWindow):
status = True
sys.stderr.write("[error] please install pngcrush")
return status
# guetzli currently does not have neither --version not --help flags
retcode = self.safe_call("guetzli" + exe)
if retcode != 0:
status = True
sys.stderr.write("[error] please install guetzli")
return status
def safe_call(self, command):
""" cross-platform command-line check """
@ -431,7 +441,10 @@ class Image:
self.compressing = True
exe = ".exe" if (sys.platform == "win32") else ""
runString = {
"jpeg": u"jpegoptim" + exe + " -f --strip-all '%(file)s'",
# "jpeg": u"jpegoptim" + exe + " -f --strip-all '%(file)s'",
# I commented out jpegoptim because guetzli compresses MUCH BETTER having a similar output quality
# the default quality level for guetzli, if the parameter '--quality Q' is not passed, it 95.
"jpeg": u"guetzli" + exe + " --quality 95 '%(file)s' '%(file)s.bak' && mv '%(file)s.bak' '%(file)s'",
"png": u"optipng" + exe + " -force -o7 '%(file)s'&&advpng" + exe + " -z4 '%(file)s' && pngcrush -rem gAMA -rem alla -rem cHRM -rem iCCP -rem sRGB -rem time '%(file)s' '%(file)s.bak' && mv '%(file)s.bak' '%(file)s'"
}
# Create a backup file