Crate rvoip_audio_core 

RVOIP Audio Core Library

Comprehensive audio handling for VoIP applications, providing device management, format conversion, codec processing, and RTP audio stream integration.

Architecture

The audio-core library is organized into several key modules:

• Device Management: Cross-platform audio device access and control
• Format Bridge: Audio format conversion and resampling
• Pipeline: High-level audio streaming pipelines
• RTP Integration: RTP payload encoding/decoding
• Processing: Audio signal processing (AEC, AGC, etc.)

Quick Start

Device Enumeration

use rvoip_audio_core::device::AudioDeviceManager;
use rvoip_audio_core::types::AudioDirection;

let device_manager = AudioDeviceManager::new().await?;
 
// List available devices
let input_devices = device_manager.list_devices(AudioDirection::Input).await?;
let output_devices = device_manager.list_devices(AudioDirection::Output).await?;
 
println!("Found {} input devices", input_devices.len());
println!("Found {} output devices", output_devices.len());

Audio Pipeline

use rvoip_audio_core::pipeline::AudioPipeline;
use rvoip_audio_core::types::{AudioFormat, AudioDirection};

// Create a basic audio pipeline
let mut pipeline = AudioPipeline::builder()
    .input_format(AudioFormat::pcm_8khz_mono())
    .output_format(AudioFormat::pcm_48khz_stereo())
    .build()
    .await?;

// Start the pipeline
pipeline.start().await?;

Features

This crate supports multiple optional features:

• device-cpal: CPAL-based audio device support (default)
• format-conversion: Audio format conversion and resampling
• processing-*: Audio signal processing features

Enable features in your Cargo.toml:

[dependencies]
rvoip-audio-core = { version = "0.1", features = ["full"] }

Re-exports

pub use error::AudioError;

pub use error::AudioResult;

pub use types::AudioFormat;

pub use types::AudioFrame;

pub use types::AudioDirection;

pub use types::AudioDeviceInfo;

pub use types::AudioStreamConfig;

pub use types::AudioQualityMetrics;

pub use device::AudioDeviceManager;

pub use device::AudioDevice;

pub use pipeline::AudioPipeline;

Modules

defaults

Default audio configuration constants

device

Audio device management

error

Error types for the audio-core library

format

Audio format conversion using dasp

pipeline

Audio pipeline

rtp

RTP integration

types

Core audio types and structures

Structs

RtpPacket

An RTP packet with header and payload

SessionId

Unique identifier for a session

Constants

VERSION

Audio-core library version

Traits

MediaControl

Extension trait for media control operations