Go bindings for SRT (Secure Reliable Transport), the open source transport technology that optimizes streaming performance across unpredictable networks.
The purpose of srtgo is easing the adoption of SRT transport technology. Using Go, with just a few lines of code you can implement an application that sends/receives data with all the benefits of SRT technology: security and reliability, while keeping latency low.
No! We are just exposing the great work done by the community in the SRT project as a golang library. All the functionality and implementation still resides in the official SRT project.
- Basic API exposed to easy develop SRT sender/receiver apps
- Caller and Listener mode
- Live transport type
- File transport type
- Message/Buffer API
- SRT transport options up to SRT 1.4.1 (options added by later libsrt releases are not exposed yet)
- SRT Stats retrieval
Example of a SRT receiver application:
package main
import (
"github.com/haivision/srtgo"
"fmt"
)
func main() {
options := make(map[string]string)
options["transtype"] = "file"
sck := srtgo.NewSrtSocket("0.0.0.0", 8090, options)
defer sck.Close()
sck.Listen(1)
s, _ := sck.Accept()
defer s.Close()
buf := make([]byte, 2048)
for {
n, _ := s.Read(buf)
if n == 0 {
break
}
fmt.Println("Received %d bytes", n)
}
//....
}- srtlib
You can find detailed instructions about how to install srtlib in its README file
srtgo requires srt 1.4.2 or newer to build: it uses APIs first introduced in 1.4.2 (srt_connect_callback, srt_setrejectreason, and the SRT_EPOLLEMPTY/SRT_ESCLOSED/SRT_ESYSOBJ error codes).
For security, srt 1.5.6 or newer is recommended: every earlier release is affected by CVE-2026-55869 (buffer overflow in KMREQ/KMRSP handling) and CVE-2026-55868 (encryption state machine downgrade), both fixed in srt 1.5.6. See SECURITY.md.