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Code Issues Releases Wiki Activity

Use FFMPEG to broadcast the stream on Twitch

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This commit is contained in:
Yohann D'ANELLO
2020-09-29 20:56:31 +02:00
parent 0adecb07cd
commit 969d36fab4
1 changed files with 22 additions and 0 deletions
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22
stream/srt/srt.go
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@@ -1,8 +1,11 @@
package srt package srt
import ( import (
"bufio"
"fmt"
"log" "log"
"net" "net"
"os/exec"
"strconv" "strconv"
"github.com/haivision/srtgo" "github.com/haivision/srtgo"
@@ -48,8 +51,14 @@ func Serve(cfg *Options) {
continue continue
} }
// Launch ffmpeg to stream on other RTMP servers
ffmpeg := exec.Command("ffmpeg", "-re", "-i", "pipe:0", "-f", "flv", "-c:v", "libx264", "-preset", "veryfast", "-maxrate", "3000k", "-bufsize", "6000k", "-pix_fmt", "yuv420p", "-g", "50", "-c:a", "aac", "-b:a", "160k", "-ac", "2", "-ar", "44100", fmt.Sprintf("rtmp://live.twitch.tv/app/%s", "TWITCH_STREAM_KEY")) //nolint
ffmpegIn, _ := ffmpeg.StdinPipe()
ffmpegOut, _ := ffmpeg.StderrPipe()
buff := make([]byte, 2048) buff := make([]byte, 2048)
n, err := s.Read(buff, 10000) n, err := s.Read(buff, 10000)
ffmpegIn.Write(buff[:n])
if err != nil { if err != nil {
log.Println("Error occurred while reading SRT socket:", err) log.Println("Error occurred while reading SRT socket:", err)
break break
@@ -68,6 +77,18 @@ func Serve(cfg *Options) {
// videoTrack, err := peerConnection.NewTrack(payloadType, packet.SSRC, "video", "pion") // videoTrack, err := peerConnection.NewTrack(payloadType, packet.SSRC, "video", "pion")
if err := ffmpeg.Start(); err != nil {
panic(err)
}
// Log ffmpeg output
go func() {
scanner := bufio.NewScanner(ffmpegOut)
for scanner.Scan() {
log.Println(scanner.Text())
}
}()
// Read RTP packets forever and send them to the WebRTC Client // Read RTP packets forever and send them to the WebRTC Client
for { for {
n, err := s.Read(buff, 10000) n, err := s.Read(buff, 10000)
@@ -79,6 +100,7 @@ func Serve(cfg *Options) {
log.Printf("Received %d bytes", n) log.Printf("Received %d bytes", n)
packet := &rtp.Packet{} packet := &rtp.Packet{}
ffmpegIn.Write(buff[:n])
if err := packet.Unmarshal(buff[:n]); err != nil { if err := packet.Unmarshal(buff[:n]); err != nil {
panic(err) panic(err)
} }