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File: [ls] / libgig / README
(download)
Revision: 1.12, Sun Sep 9 09:36:23 2007 UTC (3 years ago) by persson Branch: MAIN Changes since 1.11: +5 -1 lines * the configure script can now be used in Windows with MSYS |
This file is part of libgig, which is released under the terms of the GNU General Public License.
Home
====
You can always find the latest version of libgig at:
http://stud.hs-heilbronn.de/~cschoene/projects/libgig/
Content
=======
libgig actually consists of three parts:
- RIFF classes (RIFF.h, RIFF.cpp): Provides convenient methods to parse and
access arbitrary RIFF files.
- DLS classes (DLS.h, DLS.cpp): They're using the RIFF classes to parse
DLS (Downloadable Sounds) Level 1 and 2
files and provide abstract access to the
data.
- gig classes (gig.h, gig.cpp): These are based on the DLS classes and
provide the necessary extensions for
the Gigasampler file format.
Beside the actual library there are four example applications:
gigdump: Demo app that prints out the content of a .gig file.
gigextract: Extracts samples from a .gig file.
dlsdump: Demo app that prints out the content of a DLS file.
rifftree: Tool that prints out the RIFF tree of an arbitrary RIFF
file.
Since version 3.0.0 libgig also provides write support, that is for
creating modifying .gig, DLS and RIFF files.
Requirements
============
POSIX systems (e.g. Linux, OS X):
---------------------------------
You need at least to have libtool installed to be able to build the
library with "./configure && make".
Additionally you need to have either libaudiofile (>= 0.2.3) or
libsndfile (>= 1.0.2) installed which is mandatory to be able to compile
the 'gigextract' example application. But of course 'gigextract' is still
just an example application, so it would make sense to compile it only if
one of those libraries are available. That would remove that hard
dependency to those two libs. But that's not a priority for me now.
Note: for Windows systems only libsndfile is available.
If you want to regenerate all autotools build files (that is configure,
Makefile.in, etc.) then you need to have automake (>= 1.5) and autoconf
installed.
Windows:
--------
The precompiled versions of libgig (and its tools) should be compatible
with any Windows operating system of at least Win95 or younger. Notice
that all example / demo applications coming with libgig are pure console
applications, thus you won't see a GUI showing up! :)
If you want to compile libgig and its tools by yourself, please also
notice the requirements under "Compiling for Windows".
Other Operating Systems:
------------------------
libgig was written to compile for any operating system, using standard C
library functions. However the latest versions of libgig lack a portable
implementation of one tiny method called RIFF::File::ResizeFile(). So you
would either have to add native OS API calls for that particular method,
that is dependant to your OS, or you have to add a portable
implementation. No matter which way you choose, please let us know! :)
Compiling for Linux
===================
You can either compile the sources and install the library directly on
your system or you can create Redhat or Debian packages.
a) Compiling and installing directly
Call './configure && make' on the console to compile the library, all
tools and demo applications, documentation and install them with
'make install'. The latter has to be called as root.
If you are compiling from CVS you have to call 'make -f Makefile.cvs'
to generate all autotools build files before calling
'./configure && make'.
You can use 'make distclean' and probably 'make -f Makefile.cvs clean'
to clean up everything again. The latter will also delete all automatic
generated autools build files.
b) Creating Debian packages
Use 'dpkg-buildpackage -rfakeroot -b' to compile and create the Debian
packages. This will generate 3 Debian packages:
libgig: Contains the shared library files.
libgig-dev: Contains the header files and documentation for building
applications using libgig.
gigtools: Contains the tools and demo applications.
You can use 'fakeroot debian/rules clean' to clean up everything again.
c) Creating Redhat packages
You need to have the rpmbuild tool installed and properly configured to
create RPM packages. To create the RPM packages do the following:
* Get .spec file generated by ./configure and edit it as appropriate.
* Copy the source tarball to "/usr/src/<rpmdir>/SOURCES" directory,
where <rpmdir> is dependent to the system you are using. For SuSE
<rmpdir> will be "packages", for Mandrake <rpmdir> is "RPM" and for
Redhat / Fedora <rpmdir> always equals "redhat".
* Build the rpm(s) by invoking 'rpmbuild -bb <specfile>' from the
command line.
On success, the resulting rpm(s) can usually be found under the proper
"/usr/src/<rpmdir>/RPMS/<arch>" directory.
Compiling for Windows
=====================
libgig and its tools can be compiled for Windows using Bloodshed Dev-C++,
which is a free (GPL) C++ integrated development environment for Windows.
It is also possible to use MSYS from MinGW, which allows you to use
'./configure && make' like the linux builds.
You can download Dev-C++ here:
http://www.bloodshed.net/devcpp.html
Make sure you install a version with Mingw integrated.
a) Compiling libgig.dll
Simply open the project file "win32/libgig.dev" either directly in Dev-C++
or by double clicking on the project file in the Windows explorer, then
click on "Compile" in the Dev-C++ menu and that's it! After compilation
finished, you can find the files "libgig.dll", "libgig.a" and
"liblibgig.def" in the "win32" directory.
b) Compiling the example tools "rifftree", "dlsdump" and "gigdump"
You need to have libgig.dll compiled as described in a). Then you can
compile the respective tool by simply opening the respective project
(.dev) file and clicking on "Compile" from the Dev-C++ menu. After
compilation you can find the respective .exe file in the "win32"
directory.
c) Compiling the example tool "gigextract"
You need to have libgig.dll compiled as described in a). Also you need
libsndfile (as DLL) which is used to create the .wav files. You can
download libsndfile already precompiled as DLL here:
http://www.mega-nerd.com/libsndfile/
Extract the .zip file i.e. to "C:\". The libsndfile .dll file should then
be i.e. under "C:\libsndfile-1_0_17". Beside the .dll file, make sure
libsndfile's .lib file exists in that directory as well. If the .lib file
does not exist yet, you have to create it with:
dlltool --input-def libsndfile-1.def --output-lib libsndfile-1.lib
Then you have to ensure the settings of gigextract's Dev-C++ project file
are pointing to the correct location of your local copy of libsndfile. For
that click in the Dev-C++ menu on "Project" -> "Project Options". Then
click on the tab "Parameter" and make sure the path to "libsndfile-1.lib"
in the "Linker" list view is correct. Then click on the tab "Directories"
and then on the tab "Include Directories" and make sure the path to
libsndfile points to the correct location there as well.
After that you should finally be able to compile "gigextract" by clicking
on "Compile" in the Dev-C++ menu. After compilation succeeded, you can
find the "gigextract.exe" file in the "win32" directory.
Test Cases
==========
The libgig sources come with a tiny console application which allows to
automatically test libgig's functions on your system. This test
application is not compiled by default, you have to compile it explicitly
with the following commands on the console (cppunit has to be installed):
cd src/testcases
make libgigtests
and then run the test application from the same directory with:
./libgigtests
License
=======
libgig and its tools are released under the GNU General Public License.
API Documentation
=================
If you have Doxygen installed you can generate the API documentation by
running 'make docs' in the sources' top level directory. The API
documentation will be generated in the 'doc' subdirectory.
Patches
=======
If you have bug fixes or improvements, your patches are always welcome!
Send them either directly to me or to the LinuxSampler developer's mailing
list <linuxsampler-devel@lists.sourceforge.net>.
Bugs
====
Please use http://bugs.linuxsampler.org to check and report possible bugs.
You might also try to run the "Test Cases" coming with libgig (see above),
especially in case you are running on an odd system.
Credits
=======
The initial library was based on the reverse engineering effort of
Paul Kellett and Ruben van Royen. We owe current support for the quite new
Gigasampler v3 format to Andreas Persson. Please also have a look at the
ChangeLog for all those who contributed. Thanks to all of you for your
great work!
Christian Schoenebeck <cuse@users.sourceforge.net>
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