Change go version to 1.20 for Windows 7 support

internal/exec/exec.go

@@ -10,7 +10,6 @@ import (
 	"net/url"
 	"os"
 	"os/exec"
-	"slices"
 	"strings"
 	"sync"
 	"time"
@@ -230,7 +229,7 @@ func trimSpace(b []byte) []byte {
 func setRemoteInfo(info core.Info, source string, args []string) {
 	info.SetSource(source)
 
-	if i := slices.Index(args, "-i"); i > 0 && i < len(args)-1 {
+	if i := core.Index(args, "-i"); i > 0 && i < len(args)-1 {
 		rawURL := args[i+1]
 		if u, err := url.Parse(rawURL); err == nil && u.Host != "" {
 			info.SetRemoteAddr(u.Host)

internal/ffmpeg/ffmpeg.go

@@ -2,7 +2,6 @@ package ffmpeg
 
 import (
 	"net/url"
-	"slices"
 	"strings"
 
 	"github.com/AlexxIT/go2rtc/internal/api"
@@ -44,7 +43,7 @@ func Init() {
 			return "", err
 		}
 		args := parseArgs(url[7:])
-		if slices.Contains(args.Codecs, "auto") {
+		if core.Contains(args.Codecs, "auto") {
 			return "", nil // force call streams.HandleFunc("ffmpeg")
 		}
 		return "exec:" + args.String(), nil

internal/webrtc/candidates.go

@@ -2,10 +2,10 @@ package webrtc
 
 import (
 	"net"
-	"slices"
 	"strings"
 
 	"github.com/AlexxIT/go2rtc/internal/api/ws"
+	"github.com/AlexxIT/go2rtc/pkg/core"
 	"github.com/AlexxIT/go2rtc/pkg/webrtc"
 	pion "github.com/pion/webrtc/v3"
 )
@@ -75,14 +75,14 @@ func FilterCandidate(candidate *pion.ICECandidate) bool {
 
 	// host candidate should be in the hosts list
 	if candidate.Typ == pion.ICECandidateTypeHost && filters.Candidates != nil {
-		if !slices.Contains(filters.Candidates, candidate.Address) {
+		if !core.Contains(filters.Candidates, candidate.Address) {
 			return false
 		}
 	}
 
 	if filters.Networks != nil {
 		networkType := NetworkType(candidate.Protocol.String(), candidate.Address)
-		if !slices.Contains(filters.Networks, networkType) {
+		if !core.Contains(filters.Networks, networkType) {
 			return false
 		}
 	}