SolarLiner/interflow

Web support

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#21 opened on Mar 10, 2025

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B-WASMP-Webfeaturehelp wanted

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Description

Problem Statement

Add support for Web Audio.

Proposed Solution

It's unclear what the solution should be.

There are two approaches:

  1. Create a separate module for running in a Web Audio node. This is the better performance option, separates concerns and does not block the main thread (nor competes with it for timeslices). However, SharedArrayBuffers are not available unless a specific security context is active; in practice, unless the user can configure the headers the HTTP server sends with the payload that will instanciate the module, this is not available to us.
  2. Schedule the audio callbacks on the main thread at regular intervals, and use a ring buffer to pop audio data from the Web Audio node. This approach is available everywhere, and has been used in other projects, but is the cause of performance issues on the web.

Checklist

  • I have searched for existing issues that may be similar
  • I have explained the feature's value proposition
  • I have provided concrete examples

Contributor guide

Research direction
Investigate the two proposed approaches for adding Web Audio support: (1) creating a separate module with SharedArrayBuffer (requires specific HTTP headers) and (2) scheduling on main thread with a ring buffer. Evaluate trade offs in performance, availability, and implementation complexity.
Tech stack
rust
Domain
audio video rtcweb dev
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Needs investigation
Prerequisites
RustWebAssemblyAudio basics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30