CDDA playback

Code example

https://github.com/ABelliqueux/nolibgs_hello_worlds/tree/main/hello_cdda

Creating the disk image

mkpsxiso -y isoconfig.xml

Using ffmpeg to generate a CDDA compliant Wav file

Needed Specification : RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, stereo 44100 Hz

Conversion

ffmpeg -i input.mp3 -acodec pcm_s16le -ac 2 -ar 44100 output.wav

Merging two mono audio channels into one stereo channel

ffmpeg -i herb.wav.new -filter_complex "[0:a][0:a]amerge=inputs=2[a]" -map "[a]" herbi.wav

Adding the audio track to the CD

Add a track section after your data track in isoconfig.xml :

<track type="audio" source="file.wav"/>

Music credits

Track 1 : Beach Party by Kevin MacLeod Link: https://incompetech.filmmusic.io/song/3429-beach-party License: https://filmmusic.io/standard-license

Track 2: Funk Game Loop by Kevin MacLeod Link: https://incompetech.filmmusic.io/song/3787-funk-game-loop License: https://filmmusic.io/standard-license