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unmo3 (opensource) v0.5 ----------------------- 26 Feb 2006 Copyright Laurent Clÿᅵÿévy (lclevy()club-internet.fr) This code is under GPLv2 license. Not for any commercial usage. * Introduction The piece of code has been written as a compagnion (validation code) of the document "the unofficial MO3 specification". See http://lclevy.free.fr/mo3 It is targeted to developpers or technical people, not for end users. It can be used by IT/XM/S3M modules specialists (tracker editor developper or modules players) to write a MO3 import loader, or more generally to handle MO3 modules in any way. The MO3 format has been created by Ian Luck (http://www.un4seen.com). If you are looking for a good encoder and decoder (but without the source code) and a good module player, Ian's web site is the right place to go. * Features of unmo3 (opensource version) Here they are: - uncompress the MO3 header and samples with lossless compression - able to save uncompressed header and samples - able to extract mp3 and ogg compressed samples - can display a channel of a given pattern into 2 forms - as encoded inside MO3 file - as it is usually appears in a tracker editor This code has been written under Cygwin/IA32, should work under Linux/IA32, and is supposed portable under other architectures. It will be tested under Solaris/Ultrasparc. If you want to run the auto tests, you have to download "unmo3_test.zip". * Syntax unmo3 [options] filename.mo3 available options are: -a parselevel (from 1-4) Display content of the MO3 file with more (-a 4) or less (-a 1) details -d debuglevel (2) Display some inner-working information -v pattern_number voice_number Display a channel of a given pattern as encoded inside MO3 module (technical output) -o Must be combined with -v. Display a given channel, but as seen in any tracker editor (user friendly output). -h header_output_filename Write the uncompressed MO3 header into a file, for further study for example. -s sample_number | all Save one sample, or all samples of the MO3 module. * Usage - to build the executable #make dep #make - demo you can try #make demo to see a 'demo' - tests #make test for the auto tests : mainly to check the decompression routines ("unmo3_test.zip" archive is required). * Not provided with this code There is remaining work to do to interpret how all IT/XM and S3M effects and samples/instruments parameters are stored AND interpreted by a player. But 80-90% of this work has been done in the documentation. And maybe in a future release I'll write a .mod module writer. Have fun, Laurent |
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