mirror of
https://github.com/hanzoai/livekit.git
synced 2026-10-30 18:29:34 +00:00
zeekay
e9292da479
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.
139 lines
3.2 KiB
Go
139 lines
3.2 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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"errors"
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"io"
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"time"
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"github.com/hanzoai/livekit/pkg/sfu/bwe"
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"github.com/livekit/mediatransportutil"
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"github.com/livekit/protocol/logger"
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"github.com/livekit/protocol/utils/mono"
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"github.com/pion/rtp"
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"go.uber.org/atomic"
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)
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type Base struct {
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logger logger.Logger
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bwe bwe.BWE
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lastPacketSentAt atomic.Int64
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*ProbeObserver
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}
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func NewBase(logger logger.Logger, bwe bwe.BWE) *Base {
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return &Base{
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logger: logger,
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bwe: bwe,
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ProbeObserver: NewProbeObserver(logger),
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}
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}
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func (b *Base) SetInterval(_interval time.Duration) {
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}
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func (b *Base) SetBitrate(_bitrate int) {
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}
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func (b *Base) TimeSinceLastSentPacket() time.Duration {
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return time.Duration(mono.UnixNano() - b.lastPacketSentAt.Load())
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}
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func (b *Base) SendPacket(p *Packet) (int, error) {
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defer func() {
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if p.HeaderPool != nil && p.Header != nil {
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*p.Header = rtp.Header{}
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p.HeaderPool.Put(p.Header)
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}
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if p.Pool != nil && p.PoolEntity != nil {
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p.Pool.Put(p.PoolEntity)
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}
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*p = Packet{}
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PacketFactory.Put(p)
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}()
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err := b.patchRTPHeaderExtensions(p)
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if err != nil {
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b.logger.Errorw("patching rtp header extensions err", err)
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return 0, err
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}
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var written int
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written, err = p.WriteStream.WriteRTP(p.Header, p.Payload)
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if err != nil {
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if !errors.Is(err, io.ErrClosedPipe) {
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b.logger.Errorw("write rtp packet failed", err)
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}
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return 0, err
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}
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return written, nil
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}
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// patch just abs-send-time and transport-cc extensions if applicable
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func (b *Base) patchRTPHeaderExtensions(p *Packet) error {
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sendingAt := mono.Now()
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if p.AbsSendTimeExtID != 0 {
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absSendTimeExt := rtp.AbsSendTimeExtension{
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Timestamp: uint64(mediatransportutil.ToNtpTime(sendingAt) >> 14),
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}
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absSendTimeBytes, err := absSendTimeExt.Marshal()
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if err != nil {
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return err
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}
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if err = p.Header.SetExtension(p.AbsSendTimeExtID, absSendTimeBytes); err != nil {
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return err
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}
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b.lastPacketSentAt.Store(sendingAt.UnixNano())
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}
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packetSize := p.HeaderSize + len(p.Payload)
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if p.TransportWideExtID != 0 && b.bwe != nil {
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twccSN := b.bwe.RecordPacketSendAndGetSequenceNumber(
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sendingAt.UnixMicro(),
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packetSize,
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p.IsRTX,
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p.ProbeClusterId,
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p.IsProbe,
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)
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twccExt := rtp.TransportCCExtension{
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TransportSequence: twccSN,
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}
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twccExtBytes, err := twccExt.Marshal()
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if err != nil {
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return err
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}
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if err = p.Header.SetExtension(p.TransportWideExtID, twccExtBytes); err != nil {
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return err
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}
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b.lastPacketSentAt.Store(sendingAt.UnixNano())
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}
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b.ProbeObserver.RecordPacket(packetSize, p.IsRTX, p.ProbeClusterId, p.IsProbe)
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return nil
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}
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// ------------------------------------------------
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