mirror of https://github.com/jech/galene.git
Split out connection-related code into conn.go.
This commit is contained in:
Juliusz Chroboczek
parent
2a35f4e5d9
commit
6d6cb6caf2
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@ -0,0 +1,191 @@
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// Copyright (c) 2020 by Juliusz Chroboczek.
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// This is not open source software. Copy it, and I'll break into your
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// house and tell your three year-old that Santa doesn't exist.
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package main
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import (
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"sync"
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"sync/atomic"
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"sfu/estimator"
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"sfu/jitter"
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"sfu/packetcache"
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"github.com/pion/webrtc/v2"
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)
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type upTrack struct {
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track *webrtc.Track
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label string
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rate *estimator.Estimator
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cache *packetcache.Cache
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jitter *jitter.Estimator
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maxBitrate uint64
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lastPLI uint64
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lastSenderReport uint32
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lastSenderReportTime uint32
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localCh chan struct{} // signals that local has changed
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writerDone chan struct{} // closed when the loop dies
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mu sync.Mutex
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local []*downTrack
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}
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func (up *upTrack) notifyLocal() {
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var s struct{}
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select {
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case up.localCh <- s:
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case <-up.writerDone:
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}
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}
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func (up *upTrack) addLocal(local *downTrack) {
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up.mu.Lock()
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for _, t := range up.local {
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if t == local {
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up.mu.Unlock()
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return
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}
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}
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up.local = append(up.local, local)
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up.mu.Unlock()
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up.notifyLocal()
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}
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func (up *upTrack) delLocal(local *downTrack) bool {
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up.mu.Lock()
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for i, l := range up.local {
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if l == local {
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up.local = append(up.local[:i], up.local[i+1:]...)
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up.mu.Unlock()
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up.notifyLocal()
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return true
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}
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}
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up.mu.Unlock()
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return false
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}
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func (up *upTrack) getLocal() []*downTrack {
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up.mu.Lock()
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defer up.mu.Unlock()
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local := make([]*downTrack, len(up.local))
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copy(local, up.local)
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return local
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}
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func (up *upTrack) hasRtcpFb(tpe, parameter string) bool {
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for _, fb := range up.track.Codec().RTCPFeedback {
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if fb.Type == tpe && fb.Parameter == parameter {
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return true
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}
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}
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return false
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}
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type upConnection struct {
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id string
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label string
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pc *webrtc.PeerConnection
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tracks []*upTrack
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labels map[string]string
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iceCandidates []*webrtc.ICECandidateInit
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}
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func getUpMid(pc *webrtc.PeerConnection, track *webrtc.Track) string {
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for _, t := range pc.GetTransceivers() {
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if t.Receiver() != nil && t.Receiver().Track() == track {
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return t.Mid()
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}
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}
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return ""
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}
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func (up *upConnection) complete() bool {
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for mid, _ := range up.labels {
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found := false
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for _, t := range up.tracks {
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m := getUpMid(up.pc, t.track)
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if m == mid {
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found = true
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break
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}
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}
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if !found {
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return false
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}
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}
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return true
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}
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type bitrate struct {
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bitrate uint64
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microseconds uint64
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}
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const receiverReportTimeout = 8000000
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func (br *bitrate) Set(bitrate uint64, now uint64) {
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// this is racy -- a reader might read the
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// data between the two writes. This shouldn't
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// matter, we'll recover at the next sample.
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atomic.StoreUint64(&br.bitrate, bitrate)
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atomic.StoreUint64(&br.microseconds, now)
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}
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func (br *bitrate) Get(now uint64) uint64 {
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ts := atomic.LoadUint64(&br.microseconds)
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if now < ts || now > ts+receiverReportTimeout {
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return ^uint64(0)
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}
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return atomic.LoadUint64(&br.bitrate)
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}
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type receiverStats struct {
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loss uint32
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jitter uint32
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microseconds uint64
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}
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func (s *receiverStats) Set(loss uint8, jitter uint32, now uint64) {
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atomic.StoreUint32(&s.loss, uint32(loss))
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atomic.StoreUint32(&s.jitter, jitter)
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atomic.StoreUint64(&s.microseconds, now)
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}
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func (s *receiverStats) Get(now uint64) (uint8, uint32) {
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ts := atomic.LoadUint64(&s.microseconds)
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if now < ts || now > ts+receiverReportTimeout {
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return 0, 0
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}
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return uint8(atomic.LoadUint32(&s.loss)), atomic.LoadUint32(&s.jitter)
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}
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type downTrack struct {
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track *webrtc.Track
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remote *upTrack
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maxLossBitrate *bitrate
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maxREMBBitrate *bitrate
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rate *estimator.Estimator
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stats *receiverStats
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}
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func (down *downTrack) GetMaxBitrate(now uint64) uint64 {
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br1 := down.maxLossBitrate.Get(now)
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br2 := down.maxREMBBitrate.Get(now)
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if br1 < br2 {
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return br1
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}
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return br2
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}
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type downConnection struct {
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id string
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pc *webrtc.PeerConnection
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remote *upConnection
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tracks []*downTrack
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iceCandidates []*webrtc.ICECandidateInit
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}
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175
group.go
175
group.go
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@ -16,186 +16,11 @@ import (
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"sync/atomic"
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"time"
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"sfu/estimator"
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"sfu/jitter"
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"sfu/mono"
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"sfu/packetcache"
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"github.com/pion/webrtc/v2"
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)
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type upTrack struct {
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track *webrtc.Track
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label string
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rate *estimator.Estimator
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cache *packetcache.Cache
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jitter *jitter.Estimator
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maxBitrate uint64
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lastPLI uint64
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lastSenderReport uint32
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lastSenderReportTime uint32
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localCh chan struct{} // signals that local has changed
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writerDone chan struct{} // closed when the loop dies
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mu sync.Mutex
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local []*downTrack
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}
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func (up *upTrack) notifyLocal() {
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var s struct{}
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select {
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case up.localCh <- s:
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case <-up.writerDone:
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}
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}
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func (up *upTrack) addLocal(local *downTrack) {
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up.mu.Lock()
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for _, t := range up.local {
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if t == local {
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up.mu.Unlock()
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return
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}
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}
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up.local = append(up.local, local)
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up.mu.Unlock()
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up.notifyLocal()
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}
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func (up *upTrack) delLocal(local *downTrack) bool {
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up.mu.Lock()
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for i, l := range up.local {
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if l == local {
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up.local = append(up.local[:i], up.local[i+1:]...)
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up.mu.Unlock()
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up.notifyLocal()
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return true
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}
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}
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up.mu.Unlock()
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return false
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}
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func (up *upTrack) getLocal() []*downTrack {
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up.mu.Lock()
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defer up.mu.Unlock()
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local := make([]*downTrack, len(up.local))
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copy(local, up.local)
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return local
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}
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func (up *upTrack) hasRtcpFb(tpe, parameter string) bool {
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for _, fb := range up.track.Codec().RTCPFeedback {
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if fb.Type == tpe && fb.Parameter == parameter {
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return true
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}
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}
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return false
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}
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type upConnection struct {
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id string
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label string
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pc *webrtc.PeerConnection
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tracks []*upTrack
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labels map[string]string
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}
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func getUpMid(pc *webrtc.PeerConnection, track *webrtc.Track) string {
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for _, t := range pc.GetTransceivers() {
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if t.Receiver() != nil && t.Receiver().Track() == track {
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return t.Mid()
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}
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}
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return ""
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}
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func (up *upConnection) complete() bool {
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for mid, _ := range up.labels {
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found := false
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for _, t := range up.tracks {
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m := getUpMid(up.pc, t.track)
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if m == mid {
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found = true
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break
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}
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}
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if !found {
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return false
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}
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}
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return true
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}
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type bitrate struct {
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bitrate uint64
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microseconds uint64
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}
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const receiverReportTimeout = 8000000
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func (br *bitrate) Set(bitrate uint64, now uint64) {
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// this is racy -- a reader might read the
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// data between the two writes. This shouldn't
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// matter, we'll recover at the next sample.
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atomic.StoreUint64(&br.bitrate, bitrate)
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atomic.StoreUint64(&br.microseconds, now)
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}
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func (br *bitrate) Get(now uint64) uint64 {
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ts := atomic.LoadUint64(&br.microseconds)
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if now < ts || now > ts+receiverReportTimeout {
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return ^uint64(0)
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}
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return atomic.LoadUint64(&br.bitrate)
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}
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type receiverStats struct {
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loss uint32
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jitter uint32
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microseconds uint64
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}
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func (s *receiverStats) Set(loss uint8, jitter uint32, now uint64) {
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atomic.StoreUint32(&s.loss, uint32(loss))
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atomic.StoreUint32(&s.jitter, jitter)
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atomic.StoreUint64(&s.microseconds, now)
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}
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func (s *receiverStats) Get(now uint64) (uint8, uint32) {
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ts := atomic.LoadUint64(&s.microseconds)
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if now < ts || now > ts+receiverReportTimeout {
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return 0, 0
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}
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return uint8(atomic.LoadUint32(&s.loss)), atomic.LoadUint32(&s.jitter)
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}
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type downTrack struct {
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track *webrtc.Track
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remote *upTrack
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maxLossBitrate *bitrate
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maxREMBBitrate *bitrate
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rate *estimator.Estimator
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stats *receiverStats
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}
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func (down *downTrack) GetMaxBitrate(now uint64) uint64 {
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br1 := down.maxLossBitrate.Get(now)
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br2 := down.maxREMBBitrate.Get(now)
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if br1 < br2 {
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return br1
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}
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return br2
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}
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type downConnection struct {
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id string
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pc *webrtc.PeerConnection
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remote *upConnection
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tracks []*downTrack
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}
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type client struct {
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group *group
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id string
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