#1
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Best Compression For Archiving
Not sure if this is the right part of this forum to ask this, but?
Trying to save space on HDD by LOSSLESSLY compressing some games for archiving purposes. And later decompressing these games LOSSLESSLY to match the orginal files exactly (bit perfect). At this stage, concentrating mostly on compressing .dds, .jpg, .ogg, and .png files from games. So far, compressing *.dds files seem to be quite good using lolz directly with -d128 option and with all other lolz options at default settings. Here is a sample dds file in case someone wishes to improve broch_02.dds compression? Now, having problems compressing *.jpg, *.png, and *.ogg files (LOSSLESSLY). Since these files are already compressed (to a degree), it is difficult compressing these files much smaller. Here are some sample files - he-crown-solomon117.jpg common_game_04.png amb_in_boat_cabin.ogg Can anyone suggest suitable tools and their settings to losslessly compress these (sample) files, please? Thank you! |
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#2
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packjpg for jpeg images, png contains zlib streams so xtool or reflate should work, oggrec can compress ogg files losslessly.
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#3
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turned command into code
Thanks for the post!
I'm experimenting with several compressors now. But trying to compress the png file common_game_04.png using xtool produces the same sized file output (113 kB)! No compression of this file at all!? Tried using the command Code:
xtool e:precomp:c32mb,t4:zlib Last edited by Joe Forster/STA; 04-11-2019 at 02:46. |
#4
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Try reflate. XTool doesn't work for all png streams.
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#5
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Thanks again.
But where do I get the "reflate", and what (command line) settings should be used to run it? The *.ogg file recompressor oggre doesn't seem to compress the amb_in_boat_cabin.ogg file much unfortunately. Original ogg file size ~ 1004 kB, and after recompressing, the file size becomes only ~ 971 kB. This is only about 3% reduction in file size. Is there a better program or group of programs that would LOSSLESSLY compress *.ogg files better? Ideally something around 50% or more reduction in file size would be excellent! Last edited by brispuss; 03-11-2019 at 20:19. |
#6
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oggrec is probably the best(or only) lossless compressor for ogg files. Ogg files aren't much recompressible.
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#7
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Here's reflate CLS-Reflate
As it's a cls release, you don't need to edit arc.ini, just paste the files beside arc.exe |
#8
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Thanks again for the comments and link.
EDIT: Not sure how to run reflate now? 1) Which version of reflate should be used "k" or "l"? And why? 2) Pasted files from "k" version into Freearc (v0.67) bin sub-directory where the command line executable version of Freearc (Arc.exe) is. 3) Tried running reflate executable under elevated command prompt and nothing seemed to happen. 4) Ran Arc executable under elevated commend prompt, but I don't see an option for "reflate"; unless I missed it? 5) So how do you run reflate? 6) And how do you run reflate ONLY without any precompression and without any compression applied? Last edited by brispuss; 04-11-2019 at 20:17. Reason: How on earth is reflate run???? |
#9
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reflate is a precompressor. Use l version. Program works like -mreflate+srep+lolz
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#10
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Thanks, but which command line executable should be run? Arc.exe? Or?
I tried the command "arc -mreflate" only but only get arc showing commands help!? Also tried "arc -mreflate+srep+lolz" but still get arc showing commands help only!? |
#11
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@brispuss
Code:
FreeArc 0.67 (March 15 2014) http://freearc.org March 15 2014 High-performance archiver. Free as well for commercial as for non-commercial use Usage: Arc command [options...] archive [files... @listfiles...] Commands: a add files to archive c add comment to archive ch modify archive (recompress, encrypt and so on) create create new archive cw write archive comment to file d delete files from archive e extract files from archive ignoring pathnames f freshen archive j join archives k lock archive l list files in archive lb bare list of files in archive lt technical archive listing m move files and dirs to archive mf move files to archive modify modify archive using +/-/* actions r recover archive using recovery record rr add recovery record to archive s convert archive to SFX t test archive integrity u update files in archive v verbosely list files in archive x extract files from archive Options: -- stop processing options -ac --ClearArchiveBit clear Archive bit on files succesfully (de)archived -ad --adddir add arcname to extraction path -aeALGORITHM --encryption=ALGORITHM encryption ALGORITHM (aes, blowfish, serpent, twofish) -agFMT --autogenerate=FMT autogenerate archive name with FMT -ao --SelectArchiveBit select only files with Archive bit set -apDIR --arcpath=DIR base DIR in archive -baMODE --BrokenArchive=MODE deal with badly broken archive using MODE -cfgFILES --config=FILES use configuration FILES (default: arc*.ini) -d --delete delete files & dirs after successful archiving -df --delfiles delete only files after successful archiving -diAMOUNT --display=AMOUNT control AMOUNT of information displayed: [hoacmnwrfdtske]* -dmMETHOD --dirmethod=METHOD compression METHOD for archive directory -dpDIR --diskpath=DIR base DIR on disk -dsORDER --sort=ORDER sort files in ORDER -ed --nodirs don't add empty dirs to archive -envVAR read default options from environment VAR (default: FREEARC) -epMODE --ExcludePath=MODE Exclude/expand path MODE -f --freshen freshen files -fn --fullnames match with full names -hpPASSWORD --HeadersPassword=PASSWORD encrypt/decrypt archive headers and data using PASSWORD -iTYPE --indicator=TYPE select progress indicator TYPE (0/1/2) -ioff --shutdown shutdown computer when operation completed -k --lock lock archive -kb --keepbroken keep broken extracted files -kfKEYFILE --keyfile=KEYFILE encrypt/decrypt using KEYFILE -lcN --LimitCompMem=N limit memory usage for compression to N mbytes -ldN --LimitDecompMem=N limit memory usage for decompression to N mbytes -mMETHOD --method=METHOD compression METHOD (-m0..-m9, -m1x..-m9x) -maLEVEL set filetype detection LEVEL (+/-/1..9) -max maximum compression using external precomp, ecm, ppmonstr -mc disable compression algorithms (-mcd-, -mc-rep...) -mdN --dictionary=N set compression dictionary to N mbytes -mmMODE --multimedia=MODE set multimedia compression to MODE -ms --StoreCompressed store already compressed files -mtTHREADS --MultiThreaded=THREADS number of compression THREADS -mx maximum internal compression mode -nFILESPECS --include=FILESPECS include only files matching FILESPECS -oMODE --overwrite=MODE existing files overwrite MODE (+/-/p) -okfKEYFILE --OldKeyfile=KEYFILE old KEYFILE used only for decryption -opPASSWORD --OldPassword=PASSWORD old PASSWORD used only for decryption -pPASSWORD --password=PASSWORD encrypt/decrypt compressed data using PASSWORD -r --recursive recursively collect files -rrSIZE --recovery=SIZE add recovery information of specified SIZE to archive -sGROUPING --solid=GROUPING GROUPING for solid compression -scCHARSETS --charset=CHARSETS CHARSETS used for listfiles and comment files -sfxMODULE add sfx MODULE ("freearc.sfx" by default) -slSIZE --SizeLess=SIZE select files smaller than SIZE -smSIZE --SizeMore=SIZE select files larger than SIZE -t --test test archive after operation -tTYPE --type=TYPE archive TYPE (arc/zip/rar/...) -taTIME --TimeAfter=TIME select files modified after specified TIME -tbTIME --TimeBefore=TIME select files modified before specified TIME -tk --keeptime keep original archive time -tl --timetolast set archive time to latest file -tnPERIOD --TimeNewer=PERIOD select files newer than specified time PERIOD -toPERIOD --TimeOlder=PERIOD select files older than specified time PERIOD -tpMODE --pretest=MODE test archive before operation using MODE -u --update update files -vSIZE --volume=SIZE split archive to volumes each of SIZE bytes -wDIRECTORY --workdir=DIRECTORY DIRECTORY for temporary files -xFILESPECS --exclude=FILESPECS exclude FILESPECS from operation -y --yes answer Yes to all queries -zFILE --arccmt=FILE read archive comment from FILE or stdin --append add new files to the end of archive --archive-comment=COMMENT input archive COMMENT in cmdline --bypass=URL setups proxy bypass list for URL access --cache=N use N mbytes for read-ahead cache --crconly save/check CRC, but don't store data --create-in-workdir create archive in workdir and then move to final location --dirs add empty dirs to archive --groups=FILE name of groups FILE --language=FILE load localisation from FILE --logfile=FILE duplicate all information displayed to this FILE --noarcext don't add default extension to archive name --nodata don't store data in archive --nodates don't store filetimes in archive --nodir don't write archive directories --original=URL redownload broken parts of archive from the URL --pause-before-exit=PAUSE make a PAUSE just before closing program window --print-config display built-in definitions of compression methods --proxy=URL setups proxy(s) for URL access --queue queue operations across multiple FreeArc copies --recompress recompress archive contents --save-bad-ranges=FILE save list of broken archive parts to the FILE --sync synchronize archive and disk contents All OK Code:
:-ioff --shutdown SET exclude=-x@Resources\_Exclude.lst SET DIR1=M:\Journey SET MC=SR+lolz:dtb1:d32:mtt1:mt6:mc1023 Resources\Arc.exe create -cfgFA.ini -i2 -ds=pns -ep1 -r -ed -w.\Temp -s; -dp"%DIR1%" -m%MC% %exclude% "Journey.Bin" RD /S /Q TEMP pause Last edited by Simorq; 05-11-2019 at 01:10. |
#12
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Thanks for the detailed reply!
I've basically got cls-reflate working now by using the command- Code:
arc create -mreflate archive inputfile Code:
arc create -msrep archive inputfile As of now, by experimenting with different (pre)compressors, the best compression for *.png files seems to be by using - Precomp V0.4.7 (-cn -brute options), and then using lolz V22c4b (-d128 -mc1023 options). The test file common_game_04.png at 113 kB is compressed to 90 kB. Not too bad, but I would like better compression if possible. As for the *.ogg files, they are proving to be extremely difficult to compress much further! EDIT: I've got the common_game_04.png file compressed down to 77 kB by using Precomp and then using fp8 V6 at maximum compression (-8 option). And by using paq8px V183fix1 (-9beta options) instead of fp8 V6, common_game_04.png is now compressed to 72 kB, but this compression process is VERY SLOW! Last edited by brispuss; 05-11-2019 at 20:39. |
#13
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Trying to save space on HDD by LOSSLESSLY compressing some games for archiving purposes. And later decompressing these games LOSSLESSLY to match the orginal files exactly (bit perfect).
Last edited by amcic1994; 05-01-2020 at 05:19. |
#14
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Thanks alot!
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