SWAP

SWAP is a Simple Wav Audio Player.
About Installation and Usage References

About

SWAP is a Simple Wav Audio Player written for LINUX devices entirely in C. It uses LINUX's built in ALSA (Advanced Linux Sound Architecture) library to access the hardware's soundcard, writing information from a WAV file to it directly (as of right now, it only CONSISTENTLY supports those created with the createwav.c file).
Reading other .WAV files is a feature I look towards including soon, since it should be a simple fix of parsing the corresponding file's RIFF container for the relevant chunks (format and data), while excluding others (such as any irrelevant metadata).
Alongside this, the audio created and read by the *.c files is for mono (single channel) output. Reading stereo data might be easier to implement than expected (since it is more common in documentation/cookbooks online), but I would ideally like to implement creating stereo files before this for testing purposes.

Installation

0. Ensure you are on an OS that uses the LINUX kernel.
1. Clone the repository.
2. Edit any changes you want for your .WAV in createwav.c (A is CLI coming... eventually ;]..).
3. Edit the filename in both createwav.c and playwav.c so the file is written and read correctly.
4. Compile both files using make
5. Run both create and play.

References

1. Create WAV header: https://docs.fileformat.com/audio/wav/ (although there are some nuances that are not gone over)
2. A slightly more nuanced version of above: https://www.mmsp.ece.mcgill.ca/Documents/AudioFormats/WAVE/WAVE.html
3. ALSA/PCM documentation: https://vovkos.github.io/doxyrest/samples/alsa/group_PCM.html#doxid-group-p-c-m-1ga45d50841b307f2156fce1857bfac228c
4. VERY good ALSA library setup guide: https://alsamodular.sourceforge.net/alsa_programming_howto.html#sect02
5. Another setup guide: https://www.linuxjournal.com/article/6735