See https://community.platformio.org/t/esp32-adf-audio-dev-framework-please-help/
Look into the platformio.ini
to understand how building works and what you have to change.
If you do not at least change an include path from the build_unflags
settings, the firmware will not
compile!
All of the ESP-ADF code is a momentary snapshot of the repo (https://github.com/espressif/esp-adf/) on the 27.04.2019 with the latest ESP-IDF. That's right, not the 6 month old ESP-IDF version ESP-ADF uses right now .
All ESP-ADF code is property of Espressif.