unmo3

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open source MO3 decompression and decoding support (but not playback)

unmo3 최신버젼 다운로드

최종 버전 다운로드 (.zip)

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# unmo3 (opensource) #
----------
3 Jan 2015,
v0.61

Copyright Laurent Clévy (lclevy@free.fr)

This code is under GPLv2 license, with exception to *mo3_unpack.c/.h* under BSD now.

----------

## Changelog ##
- no more updates on https://github.com/lclevy/unmo3, see openMPT project instead.
- 16nov2015: updates by **Johannes Schultz (sagamusix)** from openMPT. 
   - possible buffer overflow fixes in mo3_unpack.c
   - specification updates
   - unpacking code used in [libopenmpt](http://lib.openmpt.org/libopenmpt/ "libopenmpt"), under BSD license: [https://source.openmpt.org/browse/openmpt/trunk/OpenMPT/soundlib/Load_mo3.cpp](https://source.openmpt.org/browse/openmpt/trunk/OpenMPT/soundlib/Load_mo3.cpp "https://source.openmpt.org/browse/openmpt/trunk/OpenMPT/soundlib/Load_mo3.cpp") 
- 21may2014: **project moved to [https://github.com/lclevy/unmo3](https://github.com/lclevy/unmo3 "https://github.com/lclevy/unmo3")** 
- 19jul2009: code source updated to v0.6 for MO3 v2.4 encoder
 -   version = 5. Also able to handle version = 3 (encoder 2.2)
 -   compressed header at offset 12 instead of 8
 -   2 times bytes 0 after samples names instead of 1.
 -   specification updated to v0.91
- 26feb2006: initial version : v0.5

## 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](http://lclevy.free.fr/mo3 "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](http://www.un4seen.com "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.

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.

This work has been done by Johannes Schultz (sagamusix) from openMPT, thanks to him !

Have fun.

Laurent

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