(Mixer though relies on WebRTC through its proprietary FTL protocol which OBS already supports). Most still use RTMP (Twitch, YouTube, Facebook.). Long answer: None of the main streaming services support the SRT protocol for ingest. The API is fully documented on GitHub.Ī very good source of info is the SRT Cookbook.Ĭan SRT be used with Twitch or my favorite service?
There is also a white paper which can be found here Other competing new protocols are WebRTC, Zixi (closed source) and RIST the latter two are quite similar to SRT and all go beyond RTMP.įor further technical details, we recommend this video by Alex Converse, a Twitch engineer: SRT adds up to these two protocols to transport MPEGTS, with the best of two worlds: the reliability of TCP, and the lower latency of UDP. It can also be used with TCP, which is more reliable but has larger latency. (In terms of comparison, RTMP protocol relies on the FLV container.) The MPEGTS container is usually used along with UDP protocol, which makes it fast, but very unreliable and prone to packet loss. While RTMP development has been abandoned since 2012, SRT development is still very much active.Īs a protocol, it is content agnostic, although the industry uses it along with an MPEGTS container, which is the de facto standard in broadcast industry.
#Camerafi live video 2018 code#
Unlike RTMP, SRT is an open source protocol, and the source code can be found on GitHub. (Hey Haivision, friendly suggestion: it'd be nice to have this vid posted on YouTube instead of having to enter personal info! :P ) The NAB 2019 NAB SRT panel can be watched here. See the NAB 2018 SRT panel with ESPN, NFL, Microsoft speakers talking about their use of SRT: SRT is mostly used in the broadcast and corporate world at the moment.(2) low latency (as low as twice the round-trip between encoder and ingest server, with sub-second latency usually). (1) better resilience to network issues (jitter, lost packets, delay, bandwidth fluctuations) with mechanisms for packet recovery (retransmission or ARQ automatic repeat request and also FEC forward error correction) + internet bonding and Secure Reliable Transport (or SRT in short) is a relatively recent open source streaming protocol, originally developped by Haivision (first demo in 2013) and promoted by the SRT Alliance which includes many big players in the streaming/video/telco industry.Option 2: Stream SRT using the Custom FFmpeg Record output.Option 1: Stream SRT using the Streaming output.Can SRT be used with Twitch or my favorite service?.This feature requires OBS Studio 25.0 or newer.
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