Crate rusty_esp_audio 

rusty_esp_audio — ESP-ADF / ESP-GMF / esp_codec_dev remade in Rust: I2S/PDM capture and playback, a fixed-block audio pipeline, codec-chip drivers, Opus/FLAC/ADPCM framing via the Remade codecs. Memory safe, no_std core.

This is the facade: it re-exports the no_std core and exposes the chip backends under esp. Depend on this crate; reach into the sub-crates only when you are building a backend.

Part of Janus (Remade With Rust). Plan: docs/plans/rusty_esp_audio.md.

Modules

chip

Codec chips as register data — esp_codec_dev’s drivers remade.

codec

Framing and conversion: esp_audio_codec’s PCM/ADPCM remade, plus WAV headers, plus FLAC through the house rusty_flac behind the flac feature (the one allocating module). Lossy codecs are a measured decision (A4).

elements

The elements: ESP-ADF’s filter/resample/mixer elements and ESP-SR’s lite front end, each an Element over interleaved i16.

esp

Chip backends (esp-hal for Track B, esp-idf for Track A).

esp_core

rusty_esp_core — the shared vocabulary of the Janus ESP family.

pipeline

Element and Pipeline: ESP-ADF’s audio_element / audio_pipeline remade as a fixed-block chain over two halves of one caller scratch buffer.

prelude

The names a sketch or firmware wants in scope.

ring

RingBuffer: ESP-ADF’s ringbuf remade as a whole-frame ring over a caller-owned slice.

source

Where blocks come from and where they go.

Structs

Pipeline

A fixed chain of N elements.

RingBuffer

A whole-frame byte ring over borrowed memory.

Constants

VERSION

Crate version, for capability manifests and logs.

Traits

AudioSink

Consumes blocks of PCM.

AudioSource

Produces fixed-size blocks of PCM into caller memory.

Element

One processing stage.

Functions

rms_dbfs_i16

Level of an interleaved i16 block in dBFS (RMS over all channels). Digital silence returns -120.0.