MP3 Decoder

Decode an audio data stream provided in MP3 format.

Application Examples

Implementation of this API is demonstrated in the following examples:

• get-started/play_mp3_control

• player/pipeline_play_sdcard_music

• player/pipeline_play_mp3_with_dac_or_pwm

API Reference

Header File

• esp-adf-libs/esp_codec/include/codec/mp3_decoder.h

Functions

audio_element_handle_t mp3_decoder_init(mp3_decoder_cfg_t *config)

Create an Audio Element handle to decode incoming MP3 data.

Return

The audio element handle

Parameters

• config: The configuration

Structures

struct mp3_decoder_cfg_t

Mp3 Decoder configuration.

Public Members

int out_rb_size

Size of output ringbuffer

int task_stack

Task stack size

int task_core

CPU core number (0 or 1) where decoder task in running

int task_prio

Task priority (based on freeRTOS priority)

bool stack_in_ext

Try to allocate stack in external memory

Macros

MP3_DECODER_TASK_STACK_SIZE

MP3_DECODER_TASK_CORE

MP3_DECODER_TASK_PRIO

MP3_DECODER_RINGBUFFER_SIZE

DEFAULT_MP3_DECODER_CONFIG()

Provide feedback about this document