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Perfloop Agent
7ef0cd014e
* Reduce descriptor marshal allocations on Go 1.26.4/linux-amd64 Signed-off-by: Perfloop Agent <agent@perfloop.ai> * Use require in the descriptor marshal benchmark test Signed-off-by: Perfloop Agent <agent@perfloop.ai> * sfu: marshal dependency descriptors into caller-owned scratch * sfu: reuse the selector's descriptor clone * sfu: share one inline header-extension size constant --------- Signed-off-by: Perfloop Agent <agent@perfloop.ai>
93 lines
2.5 KiB
Go
93 lines
2.5 KiB
Go
// Copyright 2023 LiveKit, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package pacer
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import (
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"sync"
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"time"
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"github.com/livekit/livekit-server/pkg/sfu/ccutils"
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dd "github.com/livekit/livekit-server/pkg/sfu/rtpextension/dependencydescriptor"
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"github.com/pion/rtp"
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"github.com/pion/webrtc/v4"
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)
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var (
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PacketFactory = &sync.Pool{
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New: func() any {
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return &Packet{}
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},
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}
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)
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// --------------------------------------
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type PacerBehavior string
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const (
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PacerBehaviorPassThrough PacerBehavior = "pass-through"
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PacerBehaviorNoQueue PacerBehavior = "no-queue"
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PacerBehaviorLeakybucket PacerBehavior = "leaky-bucket"
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)
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type Packet struct {
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Header *rtp.Header
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HeaderPool *sync.Pool
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HeaderSize int
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Payload []byte
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IsRTX bool
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ProbeClusterId ccutils.ProbeClusterId
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IsProbe bool
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AbsSendTimeExtID uint8
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TransportWideExtID uint8
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WriteStream webrtc.TrackLocalWriter
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Pool *sync.Pool
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PoolEntity *[]byte
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// per-packet scratch for header extensions patched at send time,
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// the Packet is owned by one send until SendPacket returns
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absSendTimeBuf [3]byte
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twccBuf [2]byte
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extBuf [dd.MaxInlineExtensionSize]byte
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}
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// HoldExtension copies ext into scratch the header can point at until SendPacket returns, nil if it does not fit
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func (p *Packet) HoldExtension(ext []byte) []byte {
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if len(ext) > len(p.extBuf) {
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return nil
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}
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return p.extBuf[:copy(p.extBuf[:], ext)]
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}
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type Pacer interface {
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Enqueue(p *Packet)
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Stop()
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SetInterval(interval time.Duration)
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SetBitrate(bitrate int)
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TimeSinceLastSentPacket() time.Duration
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SetPacerProbeObserverListener(listener PacerProbeObserverListener)
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StartProbeCluster(pci ccutils.ProbeClusterInfo)
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EndProbeCluster(probeClusterId ccutils.ProbeClusterId) ccutils.ProbeClusterInfo
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}
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type PacerProbeObserverListener interface {
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OnPacerProbeObserverClusterComplete(probeClusterId ccutils.ProbeClusterId)
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}
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// ------------------------------------------------
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