Files
livekit/pkg/rtc/medialossproxy.go
zeekay e9292da479 refactor: own the module path, and move the KV client to hanzokv/go
This fork lived at github.com/hanzoai/livekit but still declared
`module github.com/livekit/livekit-server`, so all 505 self-references pointed
at upstream. A fork that does not own its module path is the exact thing the
owned-module-paths rule exists to prevent: every import line in every consumer
carries someone else's brand, and `go get` resolves to their code, not ours.

  module + 505 self-imports  github.com/livekit/livekit-server -> github.com/hanzoai/livekit
  KV client                  github.com/redis/go-redis/v9      -> github.com/hanzokv/go/v9
  message bus                github.com/livekit/psrpc          -> github.com/hanzoai/psrpc

psrpc had to be forked (hanzoai/psrpc, Apache-2.0) because its bus is typed
against the KV client — the same shape redsync had for hanzoai/git.

DELIBERATELY NOT FORKED: github.com/livekit/{protocol,mediatransportutil,
mageutil} keep their addresses. Only `protocol` still reaches go-redis, through
a single file (redis/redis.go) out of 305. Forking an 11.5MB core wire-protocol
library that this server must track in lockstep — and that upstream pushed
yesterday — to change one file trades a tidy dependency graph for permanent
divergence on the fastest-moving dependency here. So one indirect
github.com/redis/go-redis entry remains, via livekit/protocol/redis, and that
is the correct place for it to live.
2026-07-26 08:14:23 -07:00

106 lines
2.4 KiB
Go

// Copyright 2023 LiveKit, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package rtc
import (
"sync"
"time"
"github.com/pion/rtcp"
"github.com/livekit/protocol/livekit"
"github.com/livekit/protocol/logger"
"github.com/hanzoai/livekit/pkg/sfu"
)
const (
downLostUpdateDelta = time.Second
)
type MediaLossProxyParams struct {
Logger logger.Logger
}
type MediaLossProxy struct {
params MediaLossProxyParams
lock sync.Mutex
maxDownFracLost uint8
maxDownFracLostTs time.Time
maxDownFracLostValid bool
onMediaLossUpdate func(fractionalLoss uint8)
}
func NewMediaLossProxy(params MediaLossProxyParams) *MediaLossProxy {
return &MediaLossProxy{params: params}
}
func (m *MediaLossProxy) OnMediaLossUpdate(f func(fractionalLoss uint8)) {
m.lock.Lock()
m.onMediaLossUpdate = f
m.lock.Unlock()
}
func (m *MediaLossProxy) HandleMaxLossFeedback(_ *sfu.DownTrack, report *rtcp.ReceiverReport) {
m.lock.Lock()
for _, rr := range report.Reports {
m.maxDownFracLostValid = true
if m.maxDownFracLost < rr.FractionLost {
m.maxDownFracLost = rr.FractionLost
}
}
m.lock.Unlock()
m.maybeUpdateLoss()
}
func (m *MediaLossProxy) NotifySubscriberNodeMediaLoss(_nodeID livekit.NodeID, fractionalLoss uint8) {
m.lock.Lock()
m.maxDownFracLostValid = true
if m.maxDownFracLost < fractionalLoss {
m.maxDownFracLost = fractionalLoss
}
m.lock.Unlock()
m.maybeUpdateLoss()
}
func (m *MediaLossProxy) maybeUpdateLoss() {
var (
shouldUpdate bool
maxLost uint8
)
m.lock.Lock()
now := time.Now()
if now.Sub(m.maxDownFracLostTs) > downLostUpdateDelta && m.maxDownFracLostValid {
shouldUpdate = true
maxLost = m.maxDownFracLost
m.maxDownFracLost = 0
m.maxDownFracLostTs = now
m.maxDownFracLostValid = false
}
onMediaLossUpdate := m.onMediaLossUpdate
m.lock.Unlock()
if shouldUpdate {
if onMediaLossUpdate != nil {
onMediaLossUpdate(maxLost)
}
}
}