wav2mp3

A small POC command line tool leveraging the libmp3lame library for converting wave-files to the mp3 format.

BUILD

The code can be built both on Linux and Windows (MinGW 32).

COMMON DEPENDENCIES

• GNU C++ compiler (C++11)
• libstdc++
• pthreads
• libmp3lame (>= 3.100)
• CMake (>= 3.1)

COMMON BUILD OPTIONS

wav2mp3 requires a new libmp3lame (>=3.100). In order to use this library from another location, use the corresponding cmake variables. Example:

cmake .. -DCMAKE_LIBRARY_PATH=/path/to/my/lame/lib -DCMAKE_INCLUDE_PATH=/path/to/my/lame/include

For additional debugging output and non-optimized compilation build in Debug mode:

cmake .. -DCMAKE_BUILD_TYPE=Debug

Linux

In its simplest form build the project as follows:

mkdir build
cd build
cmake ..
make -j4
sudo make install

Windows/MinGW

On Windows platforms you need to install the MinGW(32) development environment including all libaries mentioned above.

Build the code with something like the following:

mkdir build
cd build
cmake .. -G "MinGW Makefiles"
mingw32-make

RUN

Run the command line tool passing the directory containing wave-files that shall be converted to mp3, e.g. like this:

./wav2mp3 /path/to/my/wav/files

It will convert all files with the extension .wav to .mp3 files in the passed directory.

POSSIBLE IMPROVEMENTS / TODOS

• Support wave-formats with != 16 bits per sample
• Improve performance by using different flavors of lame_encode_buffer_XXX().
• Unit tests?!