Separate from ion-sfu (#171)

* Separate from ion-sfu

changes:
1. extract pkg/buffer, twcc, sfu, relay, stats, logger

2. to solve cycle import, move ion-sfu/pkg/logger to pkg/sfu/logger

3. replace pion/ion-sfu => ./
reason: will change import pion/ion-sfu/pkg/* to livekit-server/pkg/*
after this pr merged. Just not change any code in this pr, because it
will confused with the separate code from ion-sfu in review.

* Move code from ion-sfu to pkg/sfu

* fix build error for resovle conflict

Co-authored-by: cnderrauber <zengjie9004@gmail.com>

pkg/rtc/config.go

@@ -4,8 +4,8 @@ import (
 	"errors"
 	"net"
 
+	"github.com/livekit/livekit-server/pkg/sfu/buffer"
 	"github.com/pion/ice/v2"
-	"github.com/pion/ion-sfu/pkg/buffer"
 	"github.com/pion/webrtc/v3"
 
 	"github.com/livekit/livekit-server/pkg/config"

pkg/rtc/mediatrack.go

@@ -6,12 +6,12 @@ import (
 	"sync/atomic"
 	"time"
 
+	"github.com/livekit/livekit-server/pkg/sfu"
+	"github.com/livekit/livekit-server/pkg/sfu/buffer"
+	"github.com/livekit/livekit-server/pkg/sfu/twcc"
 	"github.com/livekit/protocol/logger"
 	livekit "github.com/livekit/protocol/proto"
 	"github.com/livekit/protocol/utils"
-	"github.com/pion/ion-sfu/pkg/buffer"
-	"github.com/pion/ion-sfu/pkg/sfu"
-	"github.com/pion/ion-sfu/pkg/twcc"
 	"github.com/pion/rtcp"
 	"github.com/pion/webrtc/v3"
 	"github.com/pion/webrtc/v3/pkg/rtcerr"

pkg/rtc/participant.go

@@ -9,11 +9,11 @@ import (
 	"time"
 
 	lru "github.com/hashicorp/golang-lru"
+	"github.com/livekit/livekit-server/pkg/sfu"
+	"github.com/livekit/livekit-server/pkg/sfu/twcc"
 	"github.com/livekit/protocol/logger"
 	livekit "github.com/livekit/protocol/proto"
 	"github.com/livekit/protocol/utils"
-	"github.com/pion/ion-sfu/pkg/sfu"
-	"github.com/pion/ion-sfu/pkg/twcc"
 	"github.com/pion/rtcp"
 	"github.com/pion/webrtc/v3"
 	"github.com/pkg/errors"

pkg/rtc/plithrottle.go

@@ -14,7 +14,7 @@ type pliThrottle struct {
 	lastSent map[uint32]int64
 }
 
-// github.com/pion/ion-sfu/pkg/sfu/simulcast.go
+// github.com/livekit/livekit-server/pkg/sfu/simulcast.go
 const (
 	fullResolution    = "f"
 	halfResolution    = "h"

pkg/rtc/room.go

@@ -8,9 +8,9 @@ import (
 	"time"
 
 	"github.com/go-logr/logr"
+	"github.com/livekit/livekit-server/pkg/sfu/buffer"
 	"github.com/livekit/protocol/logger"
 	livekit "github.com/livekit/protocol/proto"
-	"github.com/pion/ion-sfu/pkg/buffer"
 	"google.golang.org/protobuf/proto"
 
 	"github.com/livekit/livekit-server/pkg/config"

pkg/rtc/subscribedtrack.go

@@ -4,9 +4,9 @@ import (
 	"time"
 
 	"github.com/bep/debounce"
+	"github.com/livekit/livekit-server/pkg/sfu"
 	livekit "github.com/livekit/protocol/proto"
 	"github.com/livekit/protocol/utils"
-	"github.com/pion/ion-sfu/pkg/sfu"
 	"github.com/pion/webrtc/v3"
 )
 

pkg/rtc/types/interfaces.go

@@ -3,7 +3,7 @@ package types
 import (
 	"time"
 
-	"github.com/pion/ion-sfu/pkg/sfu"
+	"github.com/livekit/livekit-server/pkg/sfu"
 	"github.com/pion/rtcp"
 	"github.com/pion/webrtc/v3"
 

pkg/rtc/types/typesfakes/fake_subscribed_track.go

@@ -5,8 +5,8 @@ import (
 	"sync"
 
 	"github.com/livekit/livekit-server/pkg/rtc/types"
+	"github.com/livekit/livekit-server/pkg/sfu"
 	livekit "github.com/livekit/protocol/proto"
-	"github.com/pion/ion-sfu/pkg/sfu"
 )
 
 type FakeSubscribedTrack struct {

pkg/rtc/wrappedreceiver.go

@@ -1,7 +1,7 @@
 package rtc
 
 import (
-	"github.com/pion/ion-sfu/pkg/sfu"
+	"github.com/livekit/livekit-server/pkg/sfu"
 )
 
 // wrapper around WebRTC receiver, overriding its ID