# Haivision/srt

Secure, Reliable, Transport

Repository: https://github.com/Haivision/srt
Canonical: https://ross.abutalabs.com/products/srt
Homepage: https://www.srtalliance.org
Language: C++
License: MPL-2.0
License Family: copyleft
Topics: srt, live-streaming, transport, low-latency, c-plus-plus, multimedia
Last push: 2026-08-26T08:46:34+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 87, longevity 100
- inputs: {"age_days": 3436, "days_push": 7, "days_rel": 7, "gap_med": 83, "n_releases_24m": 4}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3585, forks 938 (observed 2026-08-28T04:08:11.051323+00:00)

## What it is
SRT (Secure Reliable Transport) is an open-source transport protocol and C++ library for ultra-low-latency live video and audio streaming over unpredictable IP networks. It provides AES encryption, packet loss recovery via ARQ and FEC, connection bonding, and adaptive congestion control.

## Use cases
- stream live video with sub-second latency over the internet
- send video contribution feeds between broadcast sites over lossy networks
- encrypt live media streams in transit
- recover from packet loss during live streaming
- bond multiple network connections for resilient video transport
- transfer bulk data reliably over UDP

## When to choose
- you need low-latency live video delivery over the public internet
- your network has jitter, congestion, or packet loss
- you need encrypted media transport with an open, industry-standard protocol
- you are building broadcast contribution or distribution workflows

## When to avoid
- you need simple file download over HTTP where TCP/TLS suffices
- you need web browser playback directly without a gateway or transcoder
- your use case tolerates high latency and simpler protocols like RTMP or HLS are adequate

## Facets
- artifact type: library
- maturity: stable
- function: networking, security, cryptography, video-processing, audio-processing, streaming
- domain: media, networking, developer-tools
- platform: cpp, windows, cross-platform
- tags: srt-protocol, low-latency-streaming, live-video, arq, fec, connection-bonding, aes-encryption, broadcast, udp-transport, video, real-time, linux, macos

## Member repositories
- Haivision/srt (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:11.051323+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:33:54.581615+00:00, confidence not recorded.
  - readme: https://github.com/Haivision/srt (fetched 2026-08-28T04:08:11.051323+00:00, sha 71db6d1ca8bd)
  - homepage: https://www.srtalliance.org (fetched 2026-08-29T09:27:20.570772+00:00, sha dfd55b957f7e)
  - site_page: https://srtalliance.org/srt-faq (fetched 2026-08-29T09:27:20.573224+00:00, sha 47b3dfa8ca4f)
- Data as of 2026-08-30T08:39:29.467469+00:00.