Audio player component for esp32
Capabilities
- MP3 decoding (via libhelix-mp3)
- Wav/wave file decoding
Who is this for?
Decode only audio playback on esp32 series of chips, where the features and footprint of esp-adf are not necessary.
What about esp-adf?
This component is not intended to compete with esp-adf, a much more fully developed audio framework.
It does however have a number of advantages at the moment including:
- Fully open source (esp-adf has a number of binary modules at the moment)
- Minimal size (it's less capable, but also simpler, than esp-adf)
Dependencies
For MP3 support you'll need the esp-libhelix-mp3 component.
Tests
Unity tests are implemented in the test/ folder.
States
stateDiagram-v2
[*] --> Idle : new(), cb(IDLE)
Idle --> Playing : play(), cb(PLAYING)
Playing --> Paused : pause(), cb(PAUSE)
Paused --> Playing : resume(), cb(PLAYING)
Playing --> Playing : play(), cb(COMPLETED_PLAYING_NEXT)
Paused --> Idle : stop(), cb(IDLE)
Playing --> Idle : song complete, cb(IDLE)
[*] --> Shutdown : delete(), cb(SHUTDOWN)
Shutdown --> Idle : new(), cb(IDLE)
Note: Diagram shortens callbacks from AUDIO_PLAYER_EVENT_xxx to xxx, and functions from audio_player_xxx() to xxx(), for clarity.