mirror of
https://github.com/livekit/livekit.git
synced 2026-03-29 13:39:52 +00:00
a04e566dbf
* Use published track for model access in data down track. No need to pass in the model. * implementation type assertion * remove redundant log key * one more type * Close interface method * clean up redundant log key * remove unused method * some interface changes to support data tracks in replay * correct mock signature
100 lines
2.9 KiB
Go
100 lines
2.9 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 (
|
|
"fmt"
|
|
"time"
|
|
|
|
"github.com/livekit/livekit-server/pkg/rtc/datatrack"
|
|
"github.com/livekit/livekit-server/pkg/rtc/types"
|
|
"github.com/livekit/protocol/livekit"
|
|
"github.com/livekit/protocol/logger"
|
|
)
|
|
|
|
var _ types.DataDownTrack = (*DataDownTrack)(nil)
|
|
var _ types.DataTrackSender = (*DataDownTrack)(nil)
|
|
|
|
type DataDownTrackParams struct {
|
|
Logger logger.Logger
|
|
SubscriberID livekit.ParticipantID
|
|
PublishDataTrack types.DataTrack
|
|
Handle uint16
|
|
Transport types.DataTrackTransport
|
|
}
|
|
|
|
type DataDownTrack struct {
|
|
params DataDownTrackParams
|
|
createdAt int64
|
|
}
|
|
|
|
func NewDataDownTrack(params DataDownTrackParams) (*DataDownTrack, error) {
|
|
d := &DataDownTrack{
|
|
params: params,
|
|
createdAt: time.Now().UnixNano(),
|
|
}
|
|
|
|
if err := d.params.PublishDataTrack.AddDataDownTrack(d); err != nil {
|
|
d.params.Logger.Warnw("could not add data down track", err)
|
|
return nil, err
|
|
}
|
|
|
|
d.params.Logger.Infow("created data down track", "name", d.Name())
|
|
return d, nil
|
|
}
|
|
|
|
func (d *DataDownTrack) Close() {
|
|
d.params.Logger.Infow("closing data down track", "name", d.Name())
|
|
d.params.PublishDataTrack.DeleteDataDownTrack(d.SubscriberID())
|
|
}
|
|
|
|
func (d *DataDownTrack) Handle() uint16 {
|
|
return d.params.Handle
|
|
}
|
|
|
|
func (d *DataDownTrack) PublishDataTrack() types.DataTrack {
|
|
return d.params.PublishDataTrack
|
|
}
|
|
|
|
func (d *DataDownTrack) ID() livekit.TrackID {
|
|
return d.params.PublishDataTrack.ID()
|
|
}
|
|
|
|
func (d *DataDownTrack) Name() string {
|
|
return d.params.PublishDataTrack.Name()
|
|
}
|
|
|
|
func (d *DataDownTrack) SubscriberID() livekit.ParticipantID {
|
|
// add `createdAt` to ensure repeated subscriptions from same subscriber to same publisher does not collide
|
|
return livekit.ParticipantID(fmt.Sprintf("%s:%d", d.params.SubscriberID, d.createdAt))
|
|
}
|
|
|
|
func (d *DataDownTrack) WritePacket(data []byte, packet *datatrack.Packet, _arrivalTime int64) {
|
|
forwardedPacket := *packet
|
|
forwardedPacket.Handle = d.params.Handle
|
|
buf, err := forwardedPacket.Marshal()
|
|
if err != nil {
|
|
d.params.Logger.Warnw("could not marshal data track message", err)
|
|
return
|
|
}
|
|
if err := d.params.Transport.SendDataTrackMessage(buf); err != nil {
|
|
d.params.Logger.Warnw("could not send data track message", err, "handle", d.params.Handle)
|
|
}
|
|
}
|
|
|
|
func (d *DataDownTrack) UpdateSubscriptionOptions(subscriptionOptions *livekit.DataTrackSubscriptionOptions) {
|
|
// DT-TODO
|
|
}
|