SolarLiner/interflow

Report input/output latency

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#42 opened on Mar 19, 2025

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 (0 comments) (1 reaction) (0 assignees)Rust (4 forks)auto 404
apifeaturegood first issuehelp wanted

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Description

Problem Statement

In order to give users the ability to do full latency compensation, it is crucial that we give them the reported input/output latencies, if provided by the driver.

This is especially important with #22 that will bring its own latency when resampling.

Proposed Solution

Add a latency: Option<Timestamp> to AudioInput and AudioOutput exposing the reported latency information

Alternative Solutions

  • Not reporting latency: having the information could be misleading as an accurate measurement, which I don't think it is on most platforms unless using pro audio with correct latency measurements.
  • Reporting latency another way (how?)

Checklist

  • I have searched for existing issues that may be similar
  • I have explained the feature's value proposition
  • I have provided concrete examples (not done; hopefully self-explanatory)

Contributor guide

Research direction
Add a `latency: Option<Timestamp>` field to both `AudioInput` and `AudioOutput` structs. Look at the driver implementations to see if they provide latency information, and if so, expose it through these new fields.
Tech stack
rust
Domain
audio video rtc
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
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.
Clear
Prerequisites
Rust
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65