Hello everybody !
I have some big news today, our codec is working and I’m able to display a sound on our card. I had some problems with buffer sizes and ogg vorbis format, but now my function can read a song in ogg format from our SDcard and display it on our jack. The recording function is also about to work, we can obtain data from the microphone and save it in a file on our SDcard, but when we display it, we only hear some noises. So we didn’t finish all the functions of our codec but the end is imminent ! Good night 😀