This is a reference implementation of the Simple Audio Compression (SAC) compression algorithms (4-bit and 8-bit DDPCM).
A simple conversion tool is included that enables conversion between SAC and WAVE format files.
The library is written in C++, but the API is plain C.
This is experimental code. The library API will most likely change.
To build the library, run
make from the lib folder.
To build to conversion tool, run
make from the tools folder.
A note on OpenMP
The default is for libsac to use OpenMP, which requires that you enable OpenMP
when linking to the library (e.g. using
-fopenmp for gcc/g++), otherwise you
may get linking errors such as
undefined reference to 'omp_get_num_threads'.
To disable the use of OpenMP, build the library using
For Mac OS X, or generally when using clang, disabling OpenMP may be required.
Please note that encoding will typically be much slower when OpenMP is disabled.
This library is released under the zlib/libpng license:
Copyright (c) 2014 Marcus Geelnard This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 3. This notice may not be removed or altered from any source distribution.