mirror of
https://github.com/strukturag/nextcloud-spreed-signaling
synced 2024-05-04 23:03:09 +02:00
020cbaf49d
When a publisher has a connection the publisher can update the connection (for example, to add a video track to an audio only connection) by sending an updated offer to Janus. Janus detects that, adjusts the connection and then sends back an answer. Once the publisher connection is updated Janus starts a renegotiation for the subscribers and generates the offers to be sent to them. The signaling server did not handle the event, so the offers were not sent and the subscriber connections were not updated. Now the offers are sent as needed, which makes possible for the renegotiation to be completed by the clients. In this case the "offer" message will also include an "update" parameter so clients can differentiate between offers to create new connections or update the existing one. Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>
100 lines
2.3 KiB
Go
100 lines
2.3 KiB
Go
/**
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* Standalone signaling server for the Nextcloud Spreed app.
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* Copyright (C) 2017 struktur AG
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*
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* @author Joachim Bauch <bauch@struktur.de>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package signaling
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import (
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"context"
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"fmt"
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"github.com/dlintw/goconf"
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)
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const (
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McuTypeJanus = "janus"
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McuTypeProxy = "proxy"
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McuTypeDefault = McuTypeJanus
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)
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var (
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ErrNotConnected = fmt.Errorf("not connected")
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)
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type MediaType int
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const (
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MediaTypeAudio MediaType = 1 << 0
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MediaTypeVideo MediaType = 1 << 1
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MediaTypeScreen MediaType = 1 << 2
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)
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type McuListener interface {
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PublicId() string
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OnUpdateOffer(client McuClient, offer map[string]interface{})
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OnIceCandidate(client McuClient, candidate interface{})
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OnIceCompleted(client McuClient)
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PublisherClosed(publisher McuPublisher)
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SubscriberClosed(subscriber McuSubscriber)
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}
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type McuInitiator interface {
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Country() string
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}
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type Mcu interface {
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Start() error
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Stop()
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Reload(config *goconf.ConfigFile)
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SetOnConnected(func())
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SetOnDisconnected(func())
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GetStats() interface{}
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NewPublisher(ctx context.Context, listener McuListener, id string, streamType string, bitrate int, mediaTypes MediaType, initiator McuInitiator) (McuPublisher, error)
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NewSubscriber(ctx context.Context, listener McuListener, publisher string, streamType string) (McuSubscriber, error)
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}
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type McuClient interface {
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Id() string
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StreamType() string
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Close(ctx context.Context)
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SendMessage(ctx context.Context, message *MessageClientMessage, data *MessageClientMessageData, callback func(error, map[string]interface{}))
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}
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type McuPublisher interface {
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McuClient
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HasMedia(MediaType) bool
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}
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type McuSubscriber interface {
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McuClient
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Publisher() string
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}
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