Goryu does one thing: terminate an SRT bonding group (libsrt socket groups) and forward ordinary SRT. Whether it is the right tool depends on what your encoder sends and what your server accepts.
If your server can accept bonded SRT itself
Then you do not need a relay. Nimble Streamer documents receiving bonded SRT input (broadcast and main/backup groups). SRS has an open proposal to accept bonded publishers (ossrs/srs#4771); until it ships, SRS rejects a group. MediaMTX and datarhei Core were tested with a bonded group and rejected it too (see Downstream servers).
SRTLA
SRTLA (from BELABOX, with a more recently active
fork, irlserver/srtla) is a different design:
a proxy layer that spreads one SRT connection over several links, built for
bonding cellular modems in mobile streaming. The sender runs an SRTLA sender and
the receiver runs srtla_rec in front of a plain SRT server.
It is not interchangeable with Goryu. SRTLA is its own protocol, so a sender that
speaks SRTLA cannot talk to Goryu, and an encoder that sends a libsrt socket group
cannot talk to srtla_rec. Pick by what your encoder implements. With native SRT
bonding in broadcast mode every link carries the whole stream, which gives
seamless protection against a link failing; SRTLA's selling point is also
combining the capacity of several links.
Vendor bonding
Some bonded-cellular products use their own protocol and their own receiver, not libsrt socket groups; Haivision's bonded cellular path, for one, uses its SST protocol into StreamHub. Those senders do not work with Goryu. SRT Mini Server's SRT Bonding Agent bonds the output of any encoder on Windows; its page does not say how, so it has not been tried with Goryu.
Other tools
- libsrt's own apps.
srt-live-transmittakes one input and one output and does not document group support.srt-test-liveis libsrt's bonding test application, not something to run as a relay. - Your own libsrt program. Goryu is about 2,600 lines of C; if you need other behaviour, the architecture is short enough to fork.
- Plain SRT relays such as voc/srtrelay fan one SRT stream out to many viewers; its README does not mention bonding.