Files
livekit/pkg/rtc/datatrack_stats.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

111 lines
2.6 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/hanzoai/livekit/pkg/rtc/datatrack"
"github.com/livekit/protocol/logger"
"github.com/livekit/protocol/utils/mono"
)
type dataTrackStatsParams struct {
Logger logger.Logger
}
type dataTrackStats struct {
params dataTrackStatsParams
lock sync.Mutex
startTime int64
endTime int64
highestSequenceNumber uint16
numPackets int
numPacketsLost int
numPacketsOutOfOrder int
numFrames int // count of `F` tagged packets, i. e. packets with final packet of frame marker
numBytes int
}
func newDataTrackStats(params dataTrackStatsParams) *dataTrackStats {
return &dataTrackStats{
params: params,
}
}
func (d *dataTrackStats) Update(packet *datatrack.Packet, arrivalTime int64, payloadLength int) {
d.lock.Lock()
defer d.lock.Unlock()
d.numBytes += payloadLength
if d.endTime != 0 {
return
}
if d.startTime == 0 {
d.startTime = arrivalTime
d.highestSequenceNumber = packet.SequenceNumber
d.numPackets = 1
} else {
diff := packet.SequenceNumber - d.highestSequenceNumber
switch {
case diff == 0: // duplicate
return
case diff > (1 << 15): // out of order
d.numPackets++
d.numPacketsOutOfOrder++
if d.numPacketsLost > 0 {
d.numPacketsLost--
}
default: // in order
d.numPackets++
d.numPacketsLost += int(diff) - 1
d.highestSequenceNumber = packet.SequenceNumber
}
}
if packet.IsFinalOfFrame {
d.numFrames++
}
}
func (d *dataTrackStats) Close() {
d.lock.Lock()
defer d.lock.Unlock()
d.endTime = mono.UnixNano()
if d.startTime != 0 {
duration := time.Duration(d.endTime - d.startTime).Seconds()
fps := float64(d.numFrames) / duration
d.params.Logger.Infow(
"data track stats",
"duration", duration,
"numPackets", d.numPackets,
"numPacketsLost", d.numPacketsLost,
"numPacketsOutOfOrder", d.numPacketsOutOfOrder,
"numFrames", d.numFrames,
"fps", fps,
"numBytes", d.numBytes,
)
}
}