mirror of
https://github.com/strukturag/nextcloud-spreed-signaling
synced 2024-06-17 05:06:14 +02:00
Move Janus classes to separate files, no functional changes.
This commit is contained in:
parent
d9deddfda7
commit
a66c1d82bf
807
mcu_janus.go
807
mcu_janus.go
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@ -23,12 +23,10 @@ package signaling
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import (
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"context"
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"database/sql"
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"encoding/json"
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"errors"
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"fmt"
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"log"
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"reflect"
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"strconv"
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"sync"
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"sync/atomic"
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@ -445,272 +443,6 @@ func (m *mcuJanus) sendKeepalive() {
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}
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}
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type mcuJanusClient struct {
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mcu *mcuJanus
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listener McuListener
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mu sync.Mutex // nolint
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id uint64
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session uint64
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roomId uint64
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sid string
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streamType StreamType
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maxBitrate int
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handle *JanusHandle
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handleId uint64
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closeChan chan struct{}
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deferred chan func()
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handleEvent func(event *janus.EventMsg)
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handleHangup func(event *janus.HangupMsg)
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handleDetached func(event *janus.DetachedMsg)
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handleConnected func(event *janus.WebRTCUpMsg)
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handleSlowLink func(event *janus.SlowLinkMsg)
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handleMedia func(event *janus.MediaMsg)
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}
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func (c *mcuJanusClient) Id() string {
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return strconv.FormatUint(c.id, 10)
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}
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func (c *mcuJanusClient) Sid() string {
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return c.sid
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}
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func (c *mcuJanusClient) StreamType() StreamType {
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return c.streamType
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}
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func (c *mcuJanusClient) MaxBitrate() int {
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return c.maxBitrate
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}
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func (c *mcuJanusClient) Close(ctx context.Context) {
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}
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func (c *mcuJanusClient) SendMessage(ctx context.Context, message *MessageClientMessage, data *MessageClientMessageData, callback func(error, map[string]interface{})) {
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}
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func (c *mcuJanusClient) closeClient(ctx context.Context) bool {
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if handle := c.handle; handle != nil {
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c.handle = nil
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close(c.closeChan)
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if _, err := handle.Detach(ctx); err != nil {
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if e, ok := err.(*janus.ErrorMsg); !ok || e.Err.Code != JANUS_ERROR_HANDLE_NOT_FOUND {
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log.Println("Could not detach client", handle.Id, err)
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}
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}
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return true
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}
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return false
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}
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func (c *mcuJanusClient) run(handle *JanusHandle, closeChan <-chan struct{}) {
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loop:
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for {
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select {
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case msg := <-handle.Events:
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switch t := msg.(type) {
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case *janus.EventMsg:
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c.handleEvent(t)
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case *janus.HangupMsg:
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c.handleHangup(t)
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case *janus.DetachedMsg:
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c.handleDetached(t)
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case *janus.MediaMsg:
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c.handleMedia(t)
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case *janus.WebRTCUpMsg:
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c.handleConnected(t)
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case *janus.SlowLinkMsg:
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c.handleSlowLink(t)
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case *TrickleMsg:
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c.handleTrickle(t)
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default:
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log.Println("Received unsupported event type", msg, reflect.TypeOf(msg))
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}
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case f := <-c.deferred:
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f()
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case <-closeChan:
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break loop
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}
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}
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}
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func (c *mcuJanusClient) sendOffer(ctx context.Context, offer map[string]interface{}, callback func(error, map[string]interface{})) {
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handle := c.handle
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if handle == nil {
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callback(ErrNotConnected, nil)
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return
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}
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configure_msg := map[string]interface{}{
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"request": "configure",
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"audio": true,
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"video": true,
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"data": true,
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}
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answer_msg, err := handle.Message(ctx, configure_msg, offer)
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if err != nil {
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callback(err, nil)
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return
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}
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callback(nil, answer_msg.Jsep)
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}
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func (c *mcuJanusClient) sendAnswer(ctx context.Context, answer map[string]interface{}, callback func(error, map[string]interface{})) {
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handle := c.handle
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if handle == nil {
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callback(ErrNotConnected, nil)
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return
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}
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start_msg := map[string]interface{}{
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"request": "start",
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"room": c.roomId,
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}
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start_response, err := handle.Message(ctx, start_msg, answer)
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if err != nil {
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callback(err, nil)
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return
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}
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log.Println("Started listener", start_response)
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callback(nil, nil)
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}
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func (c *mcuJanusClient) sendCandidate(ctx context.Context, candidate interface{}, callback func(error, map[string]interface{})) {
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handle := c.handle
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if handle == nil {
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callback(ErrNotConnected, nil)
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return
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}
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if _, err := handle.Trickle(ctx, candidate); err != nil {
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callback(err, nil)
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return
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}
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callback(nil, nil)
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}
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func (c *mcuJanusClient) handleTrickle(event *TrickleMsg) {
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if event.Candidate.Completed {
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c.listener.OnIceCompleted(c)
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} else {
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c.listener.OnIceCandidate(c, event.Candidate)
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}
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}
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func (c *mcuJanusClient) selectStream(ctx context.Context, stream *streamSelection, callback func(error, map[string]interface{})) {
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handle := c.handle
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if handle == nil {
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callback(ErrNotConnected, nil)
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return
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}
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if stream == nil || !stream.HasValues() {
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callback(nil, nil)
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return
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}
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configure_msg := map[string]interface{}{
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"request": "configure",
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}
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if stream != nil {
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stream.AddToMessage(configure_msg)
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}
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_, err := handle.Message(ctx, configure_msg, nil)
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if err != nil {
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callback(err, nil)
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return
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}
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callback(nil, nil)
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}
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type publisherStatsCounter struct {
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mu sync.Mutex
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streamTypes map[StreamType]bool
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subscribers map[string]bool
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}
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func (c *publisherStatsCounter) Reset() {
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c.mu.Lock()
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defer c.mu.Unlock()
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count := len(c.subscribers)
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for streamType := range c.streamTypes {
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statsMcuPublisherStreamTypesCurrent.WithLabelValues(string(streamType)).Dec()
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statsMcuSubscriberStreamTypesCurrent.WithLabelValues(string(streamType)).Sub(float64(count))
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}
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c.streamTypes = nil
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c.subscribers = nil
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}
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func (c *publisherStatsCounter) EnableStream(streamType StreamType, enable bool) {
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c.mu.Lock()
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defer c.mu.Unlock()
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if enable == c.streamTypes[streamType] {
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return
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}
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if enable {
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if c.streamTypes == nil {
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c.streamTypes = make(map[StreamType]bool)
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}
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c.streamTypes[streamType] = true
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statsMcuPublisherStreamTypesCurrent.WithLabelValues(string(streamType)).Inc()
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statsMcuSubscriberStreamTypesCurrent.WithLabelValues(string(streamType)).Add(float64(len(c.subscribers)))
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} else {
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delete(c.streamTypes, streamType)
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statsMcuPublisherStreamTypesCurrent.WithLabelValues(string(streamType)).Dec()
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statsMcuSubscriberStreamTypesCurrent.WithLabelValues(string(streamType)).Sub(float64(len(c.subscribers)))
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}
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}
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func (c *publisherStatsCounter) AddSubscriber(id string) {
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c.mu.Lock()
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defer c.mu.Unlock()
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if c.subscribers[id] {
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return
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}
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if c.subscribers == nil {
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c.subscribers = make(map[string]bool)
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}
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c.subscribers[id] = true
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for streamType := range c.streamTypes {
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statsMcuSubscriberStreamTypesCurrent.WithLabelValues(string(streamType)).Inc()
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}
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}
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func (c *publisherStatsCounter) RemoveSubscriber(id string) {
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c.mu.Lock()
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defer c.mu.Unlock()
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if !c.subscribers[id] {
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return
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}
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delete(c.subscribers, id)
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for streamType := range c.streamTypes {
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statsMcuSubscriberStreamTypesCurrent.WithLabelValues(string(streamType)).Dec()
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}
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}
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type mcuJanusPublisher struct {
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mcuJanusClient
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id string
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bitrate int
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mediaTypes MediaType
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stats publisherStatsCounter
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}
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func (m *mcuJanus) SubscriberConnected(id string, publisher string, streamType StreamType) {
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m.mu.Lock()
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defer m.mu.Unlock()
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@ -859,178 +591,6 @@ func (m *mcuJanus) NewPublisher(ctx context.Context, listener McuListener, id st
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return client, nil
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}
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func (p *mcuJanusPublisher) handleEvent(event *janus.EventMsg) {
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if videoroom := getPluginStringValue(event.Plugindata, pluginVideoRoom, "videoroom"); videoroom != "" {
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ctx := context.TODO()
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switch videoroom {
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case "destroyed":
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log.Printf("Publisher %d: associated room has been destroyed, closing", p.handleId)
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go p.Close(ctx)
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case "slow_link":
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// Ignore, processed through "handleSlowLink" in the general events.
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default:
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log.Printf("Unsupported videoroom publisher event in %d: %+v", p.handleId, event)
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}
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} else {
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log.Printf("Unsupported publisher event in %d: %+v", p.handleId, event)
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}
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}
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func (p *mcuJanusPublisher) handleHangup(event *janus.HangupMsg) {
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log.Printf("Publisher %d received hangup (%s), closing", p.handleId, event.Reason)
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go p.Close(context.Background())
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}
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func (p *mcuJanusPublisher) handleDetached(event *janus.DetachedMsg) {
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log.Printf("Publisher %d received detached, closing", p.handleId)
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go p.Close(context.Background())
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}
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func (p *mcuJanusPublisher) handleConnected(event *janus.WebRTCUpMsg) {
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log.Printf("Publisher %d received connected", p.handleId)
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p.mcu.publisherConnected.Notify(getStreamId(p.id, p.streamType))
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}
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func (p *mcuJanusPublisher) handleSlowLink(event *janus.SlowLinkMsg) {
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if event.Uplink {
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log.Printf("Publisher %s (%d) is reporting %d lost packets on the uplink (Janus -> client)", p.listener.PublicId(), p.handleId, event.Lost)
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} else {
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log.Printf("Publisher %s (%d) is reporting %d lost packets on the downlink (client -> Janus)", p.listener.PublicId(), p.handleId, event.Lost)
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}
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}
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func (p *mcuJanusPublisher) handleMedia(event *janus.MediaMsg) {
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mediaType := StreamType(event.Type)
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if mediaType == StreamTypeVideo && p.streamType == StreamTypeScreen {
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// We want to differentiate between audio, video and screensharing
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mediaType = p.streamType
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}
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p.stats.EnableStream(mediaType, event.Receiving)
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}
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func (p *mcuJanusPublisher) HasMedia(mt MediaType) bool {
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return (p.mediaTypes & mt) == mt
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}
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func (p *mcuJanusPublisher) SetMedia(mt MediaType) {
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p.mediaTypes = mt
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}
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func (p *mcuJanusPublisher) NotifyReconnected() {
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ctx := context.TODO()
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handle, session, roomId, _, err := p.mcu.getOrCreatePublisherHandle(ctx, p.id, p.streamType, p.bitrate)
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if err != nil {
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log.Printf("Could not reconnect publisher %s: %s", p.id, err)
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// TODO(jojo): Retry
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return
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}
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p.handle = handle
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p.handleId = handle.Id
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p.session = session
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p.roomId = roomId
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log.Printf("Publisher %s reconnected on handle %d", p.id, p.handleId)
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}
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func (p *mcuJanusPublisher) Close(ctx context.Context) {
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notify := false
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p.mu.Lock()
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if handle := p.handle; handle != nil && p.roomId != 0 {
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destroy_msg := map[string]interface{}{
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"request": "destroy",
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"room": p.roomId,
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}
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if _, err := handle.Request(ctx, destroy_msg); err != nil {
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log.Printf("Error destroying room %d: %s", p.roomId, err)
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} else {
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log.Printf("Room %d destroyed", p.roomId)
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}
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p.mcu.mu.Lock()
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delete(p.mcu.publishers, getStreamId(p.id, p.streamType))
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p.mcu.mu.Unlock()
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p.roomId = 0
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notify = true
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}
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p.closeClient(ctx)
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p.mu.Unlock()
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p.stats.Reset()
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if notify {
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statsPublishersCurrent.WithLabelValues(string(p.streamType)).Dec()
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p.mcu.unregisterClient(p)
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p.listener.PublisherClosed(p)
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}
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p.mcuJanusClient.Close(ctx)
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}
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func (p *mcuJanusPublisher) SendMessage(ctx context.Context, message *MessageClientMessage, data *MessageClientMessageData, callback func(error, map[string]interface{})) {
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statsMcuMessagesTotal.WithLabelValues(data.Type).Inc()
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jsep_msg := data.Payload
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switch data.Type {
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case "offer":
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p.deferred <- func() {
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msgctx, cancel := context.WithTimeout(context.Background(), p.mcu.mcuTimeout)
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defer cancel()
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// TODO Tear down previous publisher and get a new one if sid does
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// not match?
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p.sendOffer(msgctx, jsep_msg, callback)
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}
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case "candidate":
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p.deferred <- func() {
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msgctx, cancel := context.WithTimeout(context.Background(), p.mcu.mcuTimeout)
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defer cancel()
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if data.Sid == "" || data.Sid == p.Sid() {
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p.sendCandidate(msgctx, jsep_msg["candidate"], callback)
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} else {
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go callback(fmt.Errorf("Candidate message sid (%s) does not match publisher sid (%s)", data.Sid, p.Sid()), nil)
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}
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}
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case "endOfCandidates":
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// Ignore
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default:
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go callback(fmt.Errorf("Unsupported message type: %s", data.Type), nil)
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}
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}
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func (p *mcuJanusPublisher) PublishRemote(ctx context.Context, hostname string, port int, rtcpPort int) error {
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msg := map[string]interface{}{
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"request": "publish_remotely",
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"room": p.roomId,
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"publisher_id": streamTypeUserIds[p.streamType],
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"remote_id": p.id,
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"host": hostname,
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"port": port,
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"rtcp_port": rtcpPort,
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}
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response, err := p.handle.Request(ctx, msg)
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if err != nil {
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return err
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}
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errorMessage := getPluginStringValue(response.PluginData, pluginVideoRoom, "error")
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errorCode := getPluginIntValue(response.PluginData, pluginVideoRoom, "error_code")
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if errorMessage != "" || errorCode != 0 {
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if errorMessage == "" {
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errorMessage = "unknown error"
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}
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return fmt.Errorf("%s (%d)", errorMessage, errorCode)
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}
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log.Printf("Publishing %s to %s (port=%d, rtcpPort=%d)", p.id, hostname, port, rtcpPort)
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return nil
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}
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type mcuJanusSubscriber struct {
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mcuJanusClient
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|
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publisher string
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}
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func (m *mcuJanus) getPublisher(ctx context.Context, publisher string, streamType StreamType) (*mcuJanusPublisher, error) {
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// Do the direct check immediately as this should be the normal case.
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key := getStreamId(publisher, streamType)
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@ -1294,370 +854,3 @@ func (m *mcuJanus) NewRemoteSubscriber(ctx context.Context, listener McuListener
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statsSubscribersTotal.WithLabelValues(string(publisher.StreamType())).Inc()
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return client, nil
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}
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func (p *mcuJanusSubscriber) Publisher() string {
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return p.publisher
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}
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func (p *mcuJanusSubscriber) handleEvent(event *janus.EventMsg) {
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if videoroom := getPluginStringValue(event.Plugindata, pluginVideoRoom, "videoroom"); videoroom != "" {
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ctx := context.TODO()
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switch videoroom {
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case "destroyed":
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log.Printf("Subscriber %d: associated room has been destroyed, closing", p.handleId)
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go p.Close(ctx)
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case "event":
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// Handle renegotiations, but ignore other events like selected
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// substream / temporal layer.
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if getPluginStringValue(event.Plugindata, pluginVideoRoom, "configured") == "ok" &&
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event.Jsep != nil && event.Jsep["type"] == "offer" && event.Jsep["sdp"] != nil {
|
||||
p.listener.OnUpdateOffer(p, event.Jsep)
|
||||
}
|
||||
case "slow_link":
|
||||
// Ignore, processed through "handleSlowLink" in the general events.
|
||||
default:
|
||||
log.Printf("Unsupported videoroom event %s for subscriber %d: %+v", videoroom, p.handleId, event)
|
||||
}
|
||||
} else {
|
||||
log.Printf("Unsupported event for subscriber %d: %+v", p.handleId, event)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) handleHangup(event *janus.HangupMsg) {
|
||||
log.Printf("Subscriber %d received hangup (%s), closing", p.handleId, event.Reason)
|
||||
go p.Close(context.Background())
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) handleDetached(event *janus.DetachedMsg) {
|
||||
log.Printf("Subscriber %d received detached, closing", p.handleId)
|
||||
go p.Close(context.Background())
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) handleConnected(event *janus.WebRTCUpMsg) {
|
||||
log.Printf("Subscriber %d received connected", p.handleId)
|
||||
p.mcu.SubscriberConnected(p.Id(), p.publisher, p.streamType)
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) handleSlowLink(event *janus.SlowLinkMsg) {
|
||||
if event.Uplink {
|
||||
log.Printf("Subscriber %s (%d) is reporting %d lost packets on the uplink (Janus -> client)", p.listener.PublicId(), p.handleId, event.Lost)
|
||||
} else {
|
||||
log.Printf("Subscriber %s (%d) is reporting %d lost packets on the downlink (client -> Janus)", p.listener.PublicId(), p.handleId, event.Lost)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) handleMedia(event *janus.MediaMsg) {
|
||||
// Only triggered for publishers
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) NotifyReconnected() {
|
||||
ctx, cancel := context.WithTimeout(context.Background(), p.mcu.mcuTimeout)
|
||||
defer cancel()
|
||||
handle, pub, err := p.mcu.getOrCreateSubscriberHandle(ctx, p.publisher, p.streamType)
|
||||
if err != nil {
|
||||
// TODO(jojo): Retry?
|
||||
log.Printf("Could not reconnect subscriber for publisher %s: %s", p.publisher, err)
|
||||
p.Close(context.Background())
|
||||
return
|
||||
}
|
||||
|
||||
p.handle = handle
|
||||
p.handleId = handle.Id
|
||||
p.roomId = pub.roomId
|
||||
p.sid = strconv.FormatUint(handle.Id, 10)
|
||||
p.listener.SubscriberSidUpdated(p)
|
||||
log.Printf("Subscriber %d for publisher %s reconnected on handle %d", p.id, p.publisher, p.handleId)
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) Close(ctx context.Context) {
|
||||
p.mu.Lock()
|
||||
closed := p.closeClient(ctx)
|
||||
p.mu.Unlock()
|
||||
|
||||
if closed {
|
||||
p.mcu.SubscriberDisconnected(p.Id(), p.publisher, p.streamType)
|
||||
statsSubscribersCurrent.WithLabelValues(string(p.streamType)).Dec()
|
||||
}
|
||||
p.mcu.unregisterClient(p)
|
||||
p.listener.SubscriberClosed(p)
|
||||
p.mcuJanusClient.Close(ctx)
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) joinRoom(ctx context.Context, stream *streamSelection, callback func(error, map[string]interface{})) {
|
||||
handle := p.handle
|
||||
if handle == nil {
|
||||
callback(ErrNotConnected, nil)
|
||||
return
|
||||
}
|
||||
|
||||
waiter := p.mcu.publisherConnected.NewWaiter(getStreamId(p.publisher, p.streamType))
|
||||
defer p.mcu.publisherConnected.Release(waiter)
|
||||
|
||||
loggedNotPublishingYet := false
|
||||
retry:
|
||||
join_msg := map[string]interface{}{
|
||||
"request": "join",
|
||||
"ptype": "subscriber",
|
||||
"room": p.roomId,
|
||||
}
|
||||
if p.mcu.isMultistream() {
|
||||
join_msg["streams"] = []map[string]interface{}{
|
||||
{
|
||||
"feed": streamTypeUserIds[p.streamType],
|
||||
},
|
||||
}
|
||||
} else {
|
||||
join_msg["feed"] = streamTypeUserIds[p.streamType]
|
||||
}
|
||||
if stream != nil {
|
||||
stream.AddToMessage(join_msg)
|
||||
}
|
||||
join_response, err := handle.Message(ctx, join_msg, nil)
|
||||
if err != nil {
|
||||
callback(err, nil)
|
||||
return
|
||||
}
|
||||
|
||||
if error_code := getPluginIntValue(join_response.Plugindata, pluginVideoRoom, "error_code"); error_code > 0 {
|
||||
switch error_code {
|
||||
case JANUS_VIDEOROOM_ERROR_ALREADY_JOINED:
|
||||
// The subscriber is already connected to the room. This can happen
|
||||
// if a client leaves a call but keeps the subscriber objects active.
|
||||
// On joining the call again, the subscriber tries to join on the
|
||||
// MCU which will fail because he is still connected.
|
||||
// To get a new Offer SDP, we have to tear down the session on the
|
||||
// MCU and join again.
|
||||
p.mu.Lock()
|
||||
p.closeClient(ctx)
|
||||
p.mu.Unlock()
|
||||
|
||||
var pub *mcuJanusPublisher
|
||||
handle, pub, err = p.mcu.getOrCreateSubscriberHandle(ctx, p.publisher, p.streamType)
|
||||
if err != nil {
|
||||
// Reconnection didn't work, need to unregister/remove subscriber
|
||||
// so a new object will be created if the request is retried.
|
||||
p.mcu.unregisterClient(p)
|
||||
p.listener.SubscriberClosed(p)
|
||||
callback(fmt.Errorf("Already connected as subscriber for %s, error during re-joining: %s", p.streamType, err), nil)
|
||||
return
|
||||
}
|
||||
|
||||
p.handle = handle
|
||||
p.handleId = handle.Id
|
||||
p.roomId = pub.roomId
|
||||
p.sid = strconv.FormatUint(handle.Id, 10)
|
||||
p.listener.SubscriberSidUpdated(p)
|
||||
p.closeChan = make(chan struct{}, 1)
|
||||
go p.run(p.handle, p.closeChan)
|
||||
log.Printf("Already connected subscriber %d for %s, leaving and re-joining on handle %d", p.id, p.streamType, p.handleId)
|
||||
goto retry
|
||||
case JANUS_VIDEOROOM_ERROR_NO_SUCH_ROOM:
|
||||
fallthrough
|
||||
case JANUS_VIDEOROOM_ERROR_NO_SUCH_FEED:
|
||||
switch error_code {
|
||||
case JANUS_VIDEOROOM_ERROR_NO_SUCH_ROOM:
|
||||
log.Printf("Publisher %s not created yet for %s, wait and retry to join room %d as subscriber", p.publisher, p.streamType, p.roomId)
|
||||
case JANUS_VIDEOROOM_ERROR_NO_SUCH_FEED:
|
||||
log.Printf("Publisher %s not sending yet for %s, wait and retry to join room %d as subscriber", p.publisher, p.streamType, p.roomId)
|
||||
}
|
||||
|
||||
if !loggedNotPublishingYet {
|
||||
loggedNotPublishingYet = true
|
||||
statsWaitingForPublisherTotal.WithLabelValues(string(p.streamType)).Inc()
|
||||
}
|
||||
|
||||
if err := waiter.Wait(ctx); err != nil {
|
||||
callback(err, nil)
|
||||
return
|
||||
}
|
||||
log.Printf("Retry subscribing %s from %s", p.streamType, p.publisher)
|
||||
goto retry
|
||||
default:
|
||||
// TODO(jojo): Should we handle other errors, too?
|
||||
callback(fmt.Errorf("Error joining room as subscriber: %+v", join_response), nil)
|
||||
return
|
||||
}
|
||||
}
|
||||
//log.Println("Joined as listener", join_response)
|
||||
|
||||
p.session = join_response.Session
|
||||
callback(nil, join_response.Jsep)
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) update(ctx context.Context, stream *streamSelection, callback func(error, map[string]interface{})) {
|
||||
handle := p.handle
|
||||
if handle == nil {
|
||||
callback(ErrNotConnected, nil)
|
||||
return
|
||||
}
|
||||
|
||||
configure_msg := map[string]interface{}{
|
||||
"request": "configure",
|
||||
"update": true,
|
||||
}
|
||||
if stream != nil {
|
||||
stream.AddToMessage(configure_msg)
|
||||
}
|
||||
configure_response, err := handle.Message(ctx, configure_msg, nil)
|
||||
if err != nil {
|
||||
callback(err, nil)
|
||||
return
|
||||
}
|
||||
|
||||
callback(nil, configure_response.Jsep)
|
||||
}
|
||||
|
||||
type streamSelection struct {
|
||||
substream sql.NullInt16
|
||||
temporal sql.NullInt16
|
||||
audio sql.NullBool
|
||||
video sql.NullBool
|
||||
}
|
||||
|
||||
func (s *streamSelection) HasValues() bool {
|
||||
return s.substream.Valid || s.temporal.Valid || s.audio.Valid || s.video.Valid
|
||||
}
|
||||
|
||||
func (s *streamSelection) AddToMessage(message map[string]interface{}) {
|
||||
if s.substream.Valid {
|
||||
message["substream"] = s.substream.Int16
|
||||
}
|
||||
if s.temporal.Valid {
|
||||
message["temporal"] = s.temporal.Int16
|
||||
}
|
||||
if s.audio.Valid {
|
||||
message["audio"] = s.audio.Bool
|
||||
}
|
||||
if s.video.Valid {
|
||||
message["video"] = s.video.Bool
|
||||
}
|
||||
}
|
||||
|
||||
func parseStreamSelection(payload map[string]interface{}) (*streamSelection, error) {
|
||||
var stream streamSelection
|
||||
if value, found := payload["substream"]; found {
|
||||
switch value := value.(type) {
|
||||
case int:
|
||||
stream.substream.Valid = true
|
||||
stream.substream.Int16 = int16(value)
|
||||
case float32:
|
||||
stream.substream.Valid = true
|
||||
stream.substream.Int16 = int16(value)
|
||||
case float64:
|
||||
stream.substream.Valid = true
|
||||
stream.substream.Int16 = int16(value)
|
||||
default:
|
||||
return nil, fmt.Errorf("Unsupported substream value: %v", value)
|
||||
}
|
||||
}
|
||||
|
||||
if value, found := payload["temporal"]; found {
|
||||
switch value := value.(type) {
|
||||
case int:
|
||||
stream.temporal.Valid = true
|
||||
stream.temporal.Int16 = int16(value)
|
||||
case float32:
|
||||
stream.temporal.Valid = true
|
||||
stream.temporal.Int16 = int16(value)
|
||||
case float64:
|
||||
stream.temporal.Valid = true
|
||||
stream.temporal.Int16 = int16(value)
|
||||
default:
|
||||
return nil, fmt.Errorf("Unsupported temporal value: %v", value)
|
||||
}
|
||||
}
|
||||
|
||||
if value, found := payload["audio"]; found {
|
||||
switch value := value.(type) {
|
||||
case bool:
|
||||
stream.audio.Valid = true
|
||||
stream.audio.Bool = value
|
||||
default:
|
||||
return nil, fmt.Errorf("Unsupported audio value: %v", value)
|
||||
}
|
||||
}
|
||||
|
||||
if value, found := payload["video"]; found {
|
||||
switch value := value.(type) {
|
||||
case bool:
|
||||
stream.video.Valid = true
|
||||
stream.video.Bool = value
|
||||
default:
|
||||
return nil, fmt.Errorf("Unsupported video value: %v", value)
|
||||
}
|
||||
}
|
||||
|
||||
return &stream, nil
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) SendMessage(ctx context.Context, message *MessageClientMessage, data *MessageClientMessageData, callback func(error, map[string]interface{})) {
|
||||
statsMcuMessagesTotal.WithLabelValues(data.Type).Inc()
|
||||
jsep_msg := data.Payload
|
||||
switch data.Type {
|
||||
case "requestoffer":
|
||||
fallthrough
|
||||
case "sendoffer":
|
||||
p.deferred <- func() {
|
||||
msgctx, cancel := context.WithTimeout(context.Background(), p.mcu.mcuTimeout)
|
||||
defer cancel()
|
||||
|
||||
stream, err := parseStreamSelection(jsep_msg)
|
||||
if err != nil {
|
||||
go callback(err, nil)
|
||||
return
|
||||
}
|
||||
|
||||
if data.Sid == "" || data.Sid != p.Sid() {
|
||||
p.joinRoom(msgctx, stream, callback)
|
||||
} else {
|
||||
p.update(msgctx, stream, callback)
|
||||
}
|
||||
}
|
||||
case "answer":
|
||||
p.deferred <- func() {
|
||||
msgctx, cancel := context.WithTimeout(context.Background(), p.mcu.mcuTimeout)
|
||||
defer cancel()
|
||||
|
||||
if data.Sid == "" || data.Sid == p.Sid() {
|
||||
p.sendAnswer(msgctx, jsep_msg, callback)
|
||||
} else {
|
||||
go callback(fmt.Errorf("Answer message sid (%s) does not match subscriber sid (%s)", data.Sid, p.Sid()), nil)
|
||||
}
|
||||
}
|
||||
case "candidate":
|
||||
p.deferred <- func() {
|
||||
msgctx, cancel := context.WithTimeout(context.Background(), p.mcu.mcuTimeout)
|
||||
defer cancel()
|
||||
|
||||
if data.Sid == "" || data.Sid == p.Sid() {
|
||||
p.sendCandidate(msgctx, jsep_msg["candidate"], callback)
|
||||
} else {
|
||||
go callback(fmt.Errorf("Candidate message sid (%s) does not match subscriber sid (%s)", data.Sid, p.Sid()), nil)
|
||||
}
|
||||
}
|
||||
case "endOfCandidates":
|
||||
// Ignore
|
||||
case "selectStream":
|
||||
stream, err := parseStreamSelection(jsep_msg)
|
||||
if err != nil {
|
||||
go callback(err, nil)
|
||||
return
|
||||
}
|
||||
|
||||
if stream == nil || !stream.HasValues() {
|
||||
// Nothing to do
|
||||
go callback(nil, nil)
|
||||
return
|
||||
}
|
||||
|
||||
p.deferred <- func() {
|
||||
msgctx, cancel := context.WithTimeout(context.Background(), p.mcu.mcuTimeout)
|
||||
defer cancel()
|
||||
|
||||
p.selectStream(msgctx, stream, callback)
|
||||
}
|
||||
default:
|
||||
// Return error asynchronously
|
||||
go callback(fmt.Errorf("Unsupported message type: %s", data.Type), nil)
|
||||
}
|
||||
}
|
||||
|
|
216
mcu_janus_client.go
Normal file
216
mcu_janus_client.go
Normal file
|
@ -0,0 +1,216 @@
|
|||
/**
|
||||
* Standalone signaling server for the Nextcloud Spreed app.
|
||||
* Copyright (C) 2017 struktur AG
|
||||
*
|
||||
* @author Joachim Bauch <bauch@struktur.de>
|
||||
*
|
||||
* @license GNU AGPL version 3 or any later version
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Affero General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Affero General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Affero General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
package signaling
|
||||
|
||||
import (
|
||||
"context"
|
||||
"log"
|
||||
"reflect"
|
||||
"strconv"
|
||||
"sync"
|
||||
|
||||
"github.com/notedit/janus-go"
|
||||
)
|
||||
|
||||
type mcuJanusClient struct {
|
||||
mcu *mcuJanus
|
||||
listener McuListener
|
||||
mu sync.Mutex // nolint
|
||||
|
||||
id uint64
|
||||
session uint64
|
||||
roomId uint64
|
||||
sid string
|
||||
streamType StreamType
|
||||
maxBitrate int
|
||||
|
||||
handle *JanusHandle
|
||||
handleId uint64
|
||||
closeChan chan struct{}
|
||||
deferred chan func()
|
||||
|
||||
handleEvent func(event *janus.EventMsg)
|
||||
handleHangup func(event *janus.HangupMsg)
|
||||
handleDetached func(event *janus.DetachedMsg)
|
||||
handleConnected func(event *janus.WebRTCUpMsg)
|
||||
handleSlowLink func(event *janus.SlowLinkMsg)
|
||||
handleMedia func(event *janus.MediaMsg)
|
||||
}
|
||||
|
||||
func (c *mcuJanusClient) Id() string {
|
||||
return strconv.FormatUint(c.id, 10)
|
||||
}
|
||||
|
||||
func (c *mcuJanusClient) Sid() string {
|
||||
return c.sid
|
||||
}
|
||||
|
||||
func (c *mcuJanusClient) StreamType() StreamType {
|
||||
return c.streamType
|
||||
}
|
||||
|
||||
func (c *mcuJanusClient) MaxBitrate() int {
|
||||
return c.maxBitrate
|
||||
}
|
||||
|
||||
func (c *mcuJanusClient) Close(ctx context.Context) {
|
||||
}
|
||||
|
||||
func (c *mcuJanusClient) SendMessage(ctx context.Context, message *MessageClientMessage, data *MessageClientMessageData, callback func(error, map[string]interface{})) {
|
||||
}
|
||||
|
||||
func (c *mcuJanusClient) closeClient(ctx context.Context) bool {
|
||||
if handle := c.handle; handle != nil {
|
||||
c.handle = nil
|
||||
close(c.closeChan)
|
||||
if _, err := handle.Detach(ctx); err != nil {
|
||||
if e, ok := err.(*janus.ErrorMsg); !ok || e.Err.Code != JANUS_ERROR_HANDLE_NOT_FOUND {
|
||||
log.Println("Could not detach client", handle.Id, err)
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
func (c *mcuJanusClient) run(handle *JanusHandle, closeChan <-chan struct{}) {
|
||||
loop:
|
||||
for {
|
||||
select {
|
||||
case msg := <-handle.Events:
|
||||
switch t := msg.(type) {
|
||||
case *janus.EventMsg:
|
||||
c.handleEvent(t)
|
||||
case *janus.HangupMsg:
|
||||
c.handleHangup(t)
|
||||
case *janus.DetachedMsg:
|
||||
c.handleDetached(t)
|
||||
case *janus.MediaMsg:
|
||||
c.handleMedia(t)
|
||||
case *janus.WebRTCUpMsg:
|
||||
c.handleConnected(t)
|
||||
case *janus.SlowLinkMsg:
|
||||
c.handleSlowLink(t)
|
||||
case *TrickleMsg:
|
||||
c.handleTrickle(t)
|
||||
default:
|
||||
log.Println("Received unsupported event type", msg, reflect.TypeOf(msg))
|
||||
}
|
||||
case f := <-c.deferred:
|
||||
f()
|
||||
case <-closeChan:
|
||||
break loop
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (c *mcuJanusClient) sendOffer(ctx context.Context, offer map[string]interface{}, callback func(error, map[string]interface{})) {
|
||||
handle := c.handle
|
||||
if handle == nil {
|
||||
callback(ErrNotConnected, nil)
|
||||
return
|
||||
}
|
||||
|
||||
configure_msg := map[string]interface{}{
|
||||
"request": "configure",
|
||||
"audio": true,
|
||||
"video": true,
|
||||
"data": true,
|
||||
}
|
||||
answer_msg, err := handle.Message(ctx, configure_msg, offer)
|
||||
if err != nil {
|
||||
callback(err, nil)
|
||||
return
|
||||
}
|
||||
|
||||
callback(nil, answer_msg.Jsep)
|
||||
}
|
||||
|
||||
func (c *mcuJanusClient) sendAnswer(ctx context.Context, answer map[string]interface{}, callback func(error, map[string]interface{})) {
|
||||
handle := c.handle
|
||||
if handle == nil {
|
||||
callback(ErrNotConnected, nil)
|
||||
return
|
||||
}
|
||||
|
||||
start_msg := map[string]interface{}{
|
||||
"request": "start",
|
||||
"room": c.roomId,
|
||||
}
|
||||
start_response, err := handle.Message(ctx, start_msg, answer)
|
||||
if err != nil {
|
||||
callback(err, nil)
|
||||
return
|
||||
}
|
||||
log.Println("Started listener", start_response)
|
||||
callback(nil, nil)
|
||||
}
|
||||
|
||||
func (c *mcuJanusClient) sendCandidate(ctx context.Context, candidate interface{}, callback func(error, map[string]interface{})) {
|
||||
handle := c.handle
|
||||
if handle == nil {
|
||||
callback(ErrNotConnected, nil)
|
||||
return
|
||||
}
|
||||
|
||||
if _, err := handle.Trickle(ctx, candidate); err != nil {
|
||||
callback(err, nil)
|
||||
return
|
||||
}
|
||||
callback(nil, nil)
|
||||
}
|
||||
|
||||
func (c *mcuJanusClient) handleTrickle(event *TrickleMsg) {
|
||||
if event.Candidate.Completed {
|
||||
c.listener.OnIceCompleted(c)
|
||||
} else {
|
||||
c.listener.OnIceCandidate(c, event.Candidate)
|
||||
}
|
||||
}
|
||||
|
||||
func (c *mcuJanusClient) selectStream(ctx context.Context, stream *streamSelection, callback func(error, map[string]interface{})) {
|
||||
handle := c.handle
|
||||
if handle == nil {
|
||||
callback(ErrNotConnected, nil)
|
||||
return
|
||||
}
|
||||
|
||||
if stream == nil || !stream.HasValues() {
|
||||
callback(nil, nil)
|
||||
return
|
||||
}
|
||||
|
||||
configure_msg := map[string]interface{}{
|
||||
"request": "configure",
|
||||
}
|
||||
if stream != nil {
|
||||
stream.AddToMessage(configure_msg)
|
||||
}
|
||||
_, err := handle.Message(ctx, configure_msg, nil)
|
||||
if err != nil {
|
||||
callback(err, nil)
|
||||
return
|
||||
}
|
||||
|
||||
callback(nil, nil)
|
||||
}
|
205
mcu_janus_publisher.go
Normal file
205
mcu_janus_publisher.go
Normal file
|
@ -0,0 +1,205 @@
|
|||
/**
|
||||
* Standalone signaling server for the Nextcloud Spreed app.
|
||||
* Copyright (C) 2017 struktur AG
|
||||
*
|
||||
* @author Joachim Bauch <bauch@struktur.de>
|
||||
*
|
||||
* @license GNU AGPL version 3 or any later version
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Affero General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Affero General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Affero General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
package signaling
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"log"
|
||||
|
||||
"github.com/notedit/janus-go"
|
||||
)
|
||||
|
||||
type mcuJanusPublisher struct {
|
||||
mcuJanusClient
|
||||
|
||||
id string
|
||||
bitrate int
|
||||
mediaTypes MediaType
|
||||
stats publisherStatsCounter
|
||||
}
|
||||
|
||||
func (p *mcuJanusPublisher) handleEvent(event *janus.EventMsg) {
|
||||
if videoroom := getPluginStringValue(event.Plugindata, pluginVideoRoom, "videoroom"); videoroom != "" {
|
||||
ctx := context.TODO()
|
||||
switch videoroom {
|
||||
case "destroyed":
|
||||
log.Printf("Publisher %d: associated room has been destroyed, closing", p.handleId)
|
||||
go p.Close(ctx)
|
||||
case "slow_link":
|
||||
// Ignore, processed through "handleSlowLink" in the general events.
|
||||
default:
|
||||
log.Printf("Unsupported videoroom publisher event in %d: %+v", p.handleId, event)
|
||||
}
|
||||
} else {
|
||||
log.Printf("Unsupported publisher event in %d: %+v", p.handleId, event)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *mcuJanusPublisher) handleHangup(event *janus.HangupMsg) {
|
||||
log.Printf("Publisher %d received hangup (%s), closing", p.handleId, event.Reason)
|
||||
go p.Close(context.Background())
|
||||
}
|
||||
|
||||
func (p *mcuJanusPublisher) handleDetached(event *janus.DetachedMsg) {
|
||||
log.Printf("Publisher %d received detached, closing", p.handleId)
|
||||
go p.Close(context.Background())
|
||||
}
|
||||
|
||||
func (p *mcuJanusPublisher) handleConnected(event *janus.WebRTCUpMsg) {
|
||||
log.Printf("Publisher %d received connected", p.handleId)
|
||||
p.mcu.publisherConnected.Notify(getStreamId(p.id, p.streamType))
|
||||
}
|
||||
|
||||
func (p *mcuJanusPublisher) handleSlowLink(event *janus.SlowLinkMsg) {
|
||||
if event.Uplink {
|
||||
log.Printf("Publisher %s (%d) is reporting %d lost packets on the uplink (Janus -> client)", p.listener.PublicId(), p.handleId, event.Lost)
|
||||
} else {
|
||||
log.Printf("Publisher %s (%d) is reporting %d lost packets on the downlink (client -> Janus)", p.listener.PublicId(), p.handleId, event.Lost)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *mcuJanusPublisher) handleMedia(event *janus.MediaMsg) {
|
||||
mediaType := StreamType(event.Type)
|
||||
if mediaType == StreamTypeVideo && p.streamType == StreamTypeScreen {
|
||||
// We want to differentiate between audio, video and screensharing
|
||||
mediaType = p.streamType
|
||||
}
|
||||
|
||||
p.stats.EnableStream(mediaType, event.Receiving)
|
||||
}
|
||||
|
||||
func (p *mcuJanusPublisher) HasMedia(mt MediaType) bool {
|
||||
return (p.mediaTypes & mt) == mt
|
||||
}
|
||||
|
||||
func (p *mcuJanusPublisher) SetMedia(mt MediaType) {
|
||||
p.mediaTypes = mt
|
||||
}
|
||||
|
||||
func (p *mcuJanusPublisher) NotifyReconnected() {
|
||||
ctx := context.TODO()
|
||||
handle, session, roomId, _, err := p.mcu.getOrCreatePublisherHandle(ctx, p.id, p.streamType, p.bitrate)
|
||||
if err != nil {
|
||||
log.Printf("Could not reconnect publisher %s: %s", p.id, err)
|
||||
// TODO(jojo): Retry
|
||||
return
|
||||
}
|
||||
|
||||
p.handle = handle
|
||||
p.handleId = handle.Id
|
||||
p.session = session
|
||||
p.roomId = roomId
|
||||
|
||||
log.Printf("Publisher %s reconnected on handle %d", p.id, p.handleId)
|
||||
}
|
||||
|
||||
func (p *mcuJanusPublisher) Close(ctx context.Context) {
|
||||
notify := false
|
||||
p.mu.Lock()
|
||||
if handle := p.handle; handle != nil && p.roomId != 0 {
|
||||
destroy_msg := map[string]interface{}{
|
||||
"request": "destroy",
|
||||
"room": p.roomId,
|
||||
}
|
||||
if _, err := handle.Request(ctx, destroy_msg); err != nil {
|
||||
log.Printf("Error destroying room %d: %s", p.roomId, err)
|
||||
} else {
|
||||
log.Printf("Room %d destroyed", p.roomId)
|
||||
}
|
||||
p.mcu.mu.Lock()
|
||||
delete(p.mcu.publishers, getStreamId(p.id, p.streamType))
|
||||
p.mcu.mu.Unlock()
|
||||
p.roomId = 0
|
||||
notify = true
|
||||
}
|
||||
p.closeClient(ctx)
|
||||
p.mu.Unlock()
|
||||
|
||||
p.stats.Reset()
|
||||
|
||||
if notify {
|
||||
statsPublishersCurrent.WithLabelValues(string(p.streamType)).Dec()
|
||||
p.mcu.unregisterClient(p)
|
||||
p.listener.PublisherClosed(p)
|
||||
}
|
||||
p.mcuJanusClient.Close(ctx)
|
||||
}
|
||||
|
||||
func (p *mcuJanusPublisher) SendMessage(ctx context.Context, message *MessageClientMessage, data *MessageClientMessageData, callback func(error, map[string]interface{})) {
|
||||
statsMcuMessagesTotal.WithLabelValues(data.Type).Inc()
|
||||
jsep_msg := data.Payload
|
||||
switch data.Type {
|
||||
case "offer":
|
||||
p.deferred <- func() {
|
||||
msgctx, cancel := context.WithTimeout(context.Background(), p.mcu.mcuTimeout)
|
||||
defer cancel()
|
||||
|
||||
// TODO Tear down previous publisher and get a new one if sid does
|
||||
// not match?
|
||||
p.sendOffer(msgctx, jsep_msg, callback)
|
||||
}
|
||||
case "candidate":
|
||||
p.deferred <- func() {
|
||||
msgctx, cancel := context.WithTimeout(context.Background(), p.mcu.mcuTimeout)
|
||||
defer cancel()
|
||||
|
||||
if data.Sid == "" || data.Sid == p.Sid() {
|
||||
p.sendCandidate(msgctx, jsep_msg["candidate"], callback)
|
||||
} else {
|
||||
go callback(fmt.Errorf("Candidate message sid (%s) does not match publisher sid (%s)", data.Sid, p.Sid()), nil)
|
||||
}
|
||||
}
|
||||
case "endOfCandidates":
|
||||
// Ignore
|
||||
default:
|
||||
go callback(fmt.Errorf("Unsupported message type: %s", data.Type), nil)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *mcuJanusPublisher) PublishRemote(ctx context.Context, hostname string, port int, rtcpPort int) error {
|
||||
msg := map[string]interface{}{
|
||||
"request": "publish_remotely",
|
||||
"room": p.roomId,
|
||||
"publisher_id": streamTypeUserIds[p.streamType],
|
||||
"remote_id": p.id,
|
||||
"host": hostname,
|
||||
"port": port,
|
||||
"rtcp_port": rtcpPort,
|
||||
}
|
||||
response, err := p.handle.Request(ctx, msg)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
errorMessage := getPluginStringValue(response.PluginData, pluginVideoRoom, "error")
|
||||
errorCode := getPluginIntValue(response.PluginData, pluginVideoRoom, "error_code")
|
||||
if errorMessage != "" || errorCode != 0 {
|
||||
if errorMessage == "" {
|
||||
errorMessage = "unknown error"
|
||||
}
|
||||
return fmt.Errorf("%s (%d)", errorMessage, errorCode)
|
||||
}
|
||||
|
||||
log.Printf("Publishing %s to %s (port=%d, rtcpPort=%d)", p.id, hostname, port, rtcpPort)
|
||||
return nil
|
||||
}
|
110
mcu_janus_stream_selection.go
Normal file
110
mcu_janus_stream_selection.go
Normal file
|
@ -0,0 +1,110 @@
|
|||
/**
|
||||
* Standalone signaling server for the Nextcloud Spreed app.
|
||||
* Copyright (C) 2017 struktur AG
|
||||
*
|
||||
* @author Joachim Bauch <bauch@struktur.de>
|
||||
*
|
||||
* @license GNU AGPL version 3 or any later version
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Affero General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Affero General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Affero General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
package signaling
|
||||
|
||||
import (
|
||||
"database/sql"
|
||||
"fmt"
|
||||
)
|
||||
|
||||
type streamSelection struct {
|
||||
substream sql.NullInt16
|
||||
temporal sql.NullInt16
|
||||
audio sql.NullBool
|
||||
video sql.NullBool
|
||||
}
|
||||
|
||||
func (s *streamSelection) HasValues() bool {
|
||||
return s.substream.Valid || s.temporal.Valid || s.audio.Valid || s.video.Valid
|
||||
}
|
||||
|
||||
func (s *streamSelection) AddToMessage(message map[string]interface{}) {
|
||||
if s.substream.Valid {
|
||||
message["substream"] = s.substream.Int16
|
||||
}
|
||||
if s.temporal.Valid {
|
||||
message["temporal"] = s.temporal.Int16
|
||||
}
|
||||
if s.audio.Valid {
|
||||
message["audio"] = s.audio.Bool
|
||||
}
|
||||
if s.video.Valid {
|
||||
message["video"] = s.video.Bool
|
||||
}
|
||||
}
|
||||
|
||||
func parseStreamSelection(payload map[string]interface{}) (*streamSelection, error) {
|
||||
var stream streamSelection
|
||||
if value, found := payload["substream"]; found {
|
||||
switch value := value.(type) {
|
||||
case int:
|
||||
stream.substream.Valid = true
|
||||
stream.substream.Int16 = int16(value)
|
||||
case float32:
|
||||
stream.substream.Valid = true
|
||||
stream.substream.Int16 = int16(value)
|
||||
case float64:
|
||||
stream.substream.Valid = true
|
||||
stream.substream.Int16 = int16(value)
|
||||
default:
|
||||
return nil, fmt.Errorf("Unsupported substream value: %v", value)
|
||||
}
|
||||
}
|
||||
|
||||
if value, found := payload["temporal"]; found {
|
||||
switch value := value.(type) {
|
||||
case int:
|
||||
stream.temporal.Valid = true
|
||||
stream.temporal.Int16 = int16(value)
|
||||
case float32:
|
||||
stream.temporal.Valid = true
|
||||
stream.temporal.Int16 = int16(value)
|
||||
case float64:
|
||||
stream.temporal.Valid = true
|
||||
stream.temporal.Int16 = int16(value)
|
||||
default:
|
||||
return nil, fmt.Errorf("Unsupported temporal value: %v", value)
|
||||
}
|
||||
}
|
||||
|
||||
if value, found := payload["audio"]; found {
|
||||
switch value := value.(type) {
|
||||
case bool:
|
||||
stream.audio.Valid = true
|
||||
stream.audio.Bool = value
|
||||
default:
|
||||
return nil, fmt.Errorf("Unsupported audio value: %v", value)
|
||||
}
|
||||
}
|
||||
|
||||
if value, found := payload["video"]; found {
|
||||
switch value := value.(type) {
|
||||
case bool:
|
||||
stream.video.Valid = true
|
||||
stream.video.Bool = value
|
||||
default:
|
||||
return nil, fmt.Errorf("Unsupported video value: %v", value)
|
||||
}
|
||||
}
|
||||
|
||||
return &stream, nil
|
||||
}
|
321
mcu_janus_subscriber.go
Normal file
321
mcu_janus_subscriber.go
Normal file
|
@ -0,0 +1,321 @@
|
|||
/**
|
||||
* Standalone signaling server for the Nextcloud Spreed app.
|
||||
* Copyright (C) 2017 struktur AG
|
||||
*
|
||||
* @author Joachim Bauch <bauch@struktur.de>
|
||||
*
|
||||
* @license GNU AGPL version 3 or any later version
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Affero General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Affero General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Affero General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
package signaling
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"log"
|
||||
"strconv"
|
||||
|
||||
"github.com/notedit/janus-go"
|
||||
)
|
||||
|
||||
type mcuJanusSubscriber struct {
|
||||
mcuJanusClient
|
||||
|
||||
publisher string
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) Publisher() string {
|
||||
return p.publisher
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) handleEvent(event *janus.EventMsg) {
|
||||
if videoroom := getPluginStringValue(event.Plugindata, pluginVideoRoom, "videoroom"); videoroom != "" {
|
||||
ctx := context.TODO()
|
||||
switch videoroom {
|
||||
case "destroyed":
|
||||
log.Printf("Subscriber %d: associated room has been destroyed, closing", p.handleId)
|
||||
go p.Close(ctx)
|
||||
case "event":
|
||||
// Handle renegotiations, but ignore other events like selected
|
||||
// substream / temporal layer.
|
||||
if getPluginStringValue(event.Plugindata, pluginVideoRoom, "configured") == "ok" &&
|
||||
event.Jsep != nil && event.Jsep["type"] == "offer" && event.Jsep["sdp"] != nil {
|
||||
p.listener.OnUpdateOffer(p, event.Jsep)
|
||||
}
|
||||
case "slow_link":
|
||||
// Ignore, processed through "handleSlowLink" in the general events.
|
||||
default:
|
||||
log.Printf("Unsupported videoroom event %s for subscriber %d: %+v", videoroom, p.handleId, event)
|
||||
}
|
||||
} else {
|
||||
log.Printf("Unsupported event for subscriber %d: %+v", p.handleId, event)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) handleHangup(event *janus.HangupMsg) {
|
||||
log.Printf("Subscriber %d received hangup (%s), closing", p.handleId, event.Reason)
|
||||
go p.Close(context.Background())
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) handleDetached(event *janus.DetachedMsg) {
|
||||
log.Printf("Subscriber %d received detached, closing", p.handleId)
|
||||
go p.Close(context.Background())
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) handleConnected(event *janus.WebRTCUpMsg) {
|
||||
log.Printf("Subscriber %d received connected", p.handleId)
|
||||
p.mcu.SubscriberConnected(p.Id(), p.publisher, p.streamType)
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) handleSlowLink(event *janus.SlowLinkMsg) {
|
||||
if event.Uplink {
|
||||
log.Printf("Subscriber %s (%d) is reporting %d lost packets on the uplink (Janus -> client)", p.listener.PublicId(), p.handleId, event.Lost)
|
||||
} else {
|
||||
log.Printf("Subscriber %s (%d) is reporting %d lost packets on the downlink (client -> Janus)", p.listener.PublicId(), p.handleId, event.Lost)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) handleMedia(event *janus.MediaMsg) {
|
||||
// Only triggered for publishers
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) NotifyReconnected() {
|
||||
ctx, cancel := context.WithTimeout(context.Background(), p.mcu.mcuTimeout)
|
||||
defer cancel()
|
||||
handle, pub, err := p.mcu.getOrCreateSubscriberHandle(ctx, p.publisher, p.streamType)
|
||||
if err != nil {
|
||||
// TODO(jojo): Retry?
|
||||
log.Printf("Could not reconnect subscriber for publisher %s: %s", p.publisher, err)
|
||||
p.Close(context.Background())
|
||||
return
|
||||
}
|
||||
|
||||
p.handle = handle
|
||||
p.handleId = handle.Id
|
||||
p.roomId = pub.roomId
|
||||
p.sid = strconv.FormatUint(handle.Id, 10)
|
||||
p.listener.SubscriberSidUpdated(p)
|
||||
log.Printf("Subscriber %d for publisher %s reconnected on handle %d", p.id, p.publisher, p.handleId)
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) Close(ctx context.Context) {
|
||||
p.mu.Lock()
|
||||
closed := p.closeClient(ctx)
|
||||
p.mu.Unlock()
|
||||
|
||||
if closed {
|
||||
p.mcu.SubscriberDisconnected(p.Id(), p.publisher, p.streamType)
|
||||
statsSubscribersCurrent.WithLabelValues(string(p.streamType)).Dec()
|
||||
}
|
||||
p.mcu.unregisterClient(p)
|
||||
p.listener.SubscriberClosed(p)
|
||||
p.mcuJanusClient.Close(ctx)
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) joinRoom(ctx context.Context, stream *streamSelection, callback func(error, map[string]interface{})) {
|
||||
handle := p.handle
|
||||
if handle == nil {
|
||||
callback(ErrNotConnected, nil)
|
||||
return
|
||||
}
|
||||
|
||||
waiter := p.mcu.publisherConnected.NewWaiter(getStreamId(p.publisher, p.streamType))
|
||||
defer p.mcu.publisherConnected.Release(waiter)
|
||||
|
||||
loggedNotPublishingYet := false
|
||||
retry:
|
||||
join_msg := map[string]interface{}{
|
||||
"request": "join",
|
||||
"ptype": "subscriber",
|
||||
"room": p.roomId,
|
||||
}
|
||||
if p.mcu.isMultistream() {
|
||||
join_msg["streams"] = []map[string]interface{}{
|
||||
{
|
||||
"feed": streamTypeUserIds[p.streamType],
|
||||
},
|
||||
}
|
||||
} else {
|
||||
join_msg["feed"] = streamTypeUserIds[p.streamType]
|
||||
}
|
||||
if stream != nil {
|
||||
stream.AddToMessage(join_msg)
|
||||
}
|
||||
join_response, err := handle.Message(ctx, join_msg, nil)
|
||||
if err != nil {
|
||||
callback(err, nil)
|
||||
return
|
||||
}
|
||||
|
||||
if error_code := getPluginIntValue(join_response.Plugindata, pluginVideoRoom, "error_code"); error_code > 0 {
|
||||
switch error_code {
|
||||
case JANUS_VIDEOROOM_ERROR_ALREADY_JOINED:
|
||||
// The subscriber is already connected to the room. This can happen
|
||||
// if a client leaves a call but keeps the subscriber objects active.
|
||||
// On joining the call again, the subscriber tries to join on the
|
||||
// MCU which will fail because he is still connected.
|
||||
// To get a new Offer SDP, we have to tear down the session on the
|
||||
// MCU and join again.
|
||||
p.mu.Lock()
|
||||
p.closeClient(ctx)
|
||||
p.mu.Unlock()
|
||||
|
||||
var pub *mcuJanusPublisher
|
||||
handle, pub, err = p.mcu.getOrCreateSubscriberHandle(ctx, p.publisher, p.streamType)
|
||||
if err != nil {
|
||||
// Reconnection didn't work, need to unregister/remove subscriber
|
||||
// so a new object will be created if the request is retried.
|
||||
p.mcu.unregisterClient(p)
|
||||
p.listener.SubscriberClosed(p)
|
||||
callback(fmt.Errorf("Already connected as subscriber for %s, error during re-joining: %s", p.streamType, err), nil)
|
||||
return
|
||||
}
|
||||
|
||||
p.handle = handle
|
||||
p.handleId = handle.Id
|
||||
p.roomId = pub.roomId
|
||||
p.sid = strconv.FormatUint(handle.Id, 10)
|
||||
p.listener.SubscriberSidUpdated(p)
|
||||
p.closeChan = make(chan struct{}, 1)
|
||||
go p.run(p.handle, p.closeChan)
|
||||
log.Printf("Already connected subscriber %d for %s, leaving and re-joining on handle %d", p.id, p.streamType, p.handleId)
|
||||
goto retry
|
||||
case JANUS_VIDEOROOM_ERROR_NO_SUCH_ROOM:
|
||||
fallthrough
|
||||
case JANUS_VIDEOROOM_ERROR_NO_SUCH_FEED:
|
||||
switch error_code {
|
||||
case JANUS_VIDEOROOM_ERROR_NO_SUCH_ROOM:
|
||||
log.Printf("Publisher %s not created yet for %s, wait and retry to join room %d as subscriber", p.publisher, p.streamType, p.roomId)
|
||||
case JANUS_VIDEOROOM_ERROR_NO_SUCH_FEED:
|
||||
log.Printf("Publisher %s not sending yet for %s, wait and retry to join room %d as subscriber", p.publisher, p.streamType, p.roomId)
|
||||
}
|
||||
|
||||
if !loggedNotPublishingYet {
|
||||
loggedNotPublishingYet = true
|
||||
statsWaitingForPublisherTotal.WithLabelValues(string(p.streamType)).Inc()
|
||||
}
|
||||
|
||||
if err := waiter.Wait(ctx); err != nil {
|
||||
callback(err, nil)
|
||||
return
|
||||
}
|
||||
log.Printf("Retry subscribing %s from %s", p.streamType, p.publisher)
|
||||
goto retry
|
||||
default:
|
||||
// TODO(jojo): Should we handle other errors, too?
|
||||
callback(fmt.Errorf("Error joining room as subscriber: %+v", join_response), nil)
|
||||
return
|
||||
}
|
||||
}
|
||||
//log.Println("Joined as listener", join_response)
|
||||
|
||||
p.session = join_response.Session
|
||||
callback(nil, join_response.Jsep)
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) update(ctx context.Context, stream *streamSelection, callback func(error, map[string]interface{})) {
|
||||
handle := p.handle
|
||||
if handle == nil {
|
||||
callback(ErrNotConnected, nil)
|
||||
return
|
||||
}
|
||||
|
||||
configure_msg := map[string]interface{}{
|
||||
"request": "configure",
|
||||
"update": true,
|
||||
}
|
||||
if stream != nil {
|
||||
stream.AddToMessage(configure_msg)
|
||||
}
|
||||
configure_response, err := handle.Message(ctx, configure_msg, nil)
|
||||
if err != nil {
|
||||
callback(err, nil)
|
||||
return
|
||||
}
|
||||
|
||||
callback(nil, configure_response.Jsep)
|
||||
}
|
||||
|
||||
func (p *mcuJanusSubscriber) SendMessage(ctx context.Context, message *MessageClientMessage, data *MessageClientMessageData, callback func(error, map[string]interface{})) {
|
||||
statsMcuMessagesTotal.WithLabelValues(data.Type).Inc()
|
||||
jsep_msg := data.Payload
|
||||
switch data.Type {
|
||||
case "requestoffer":
|
||||
fallthrough
|
||||
case "sendoffer":
|
||||
p.deferred <- func() {
|
||||
msgctx, cancel := context.WithTimeout(context.Background(), p.mcu.mcuTimeout)
|
||||
defer cancel()
|
||||
|
||||
stream, err := parseStreamSelection(jsep_msg)
|
||||
if err != nil {
|
||||
go callback(err, nil)
|
||||
return
|
||||
}
|
||||
|
||||
if data.Sid == "" || data.Sid != p.Sid() {
|
||||
p.joinRoom(msgctx, stream, callback)
|
||||
} else {
|
||||
p.update(msgctx, stream, callback)
|
||||
}
|
||||
}
|
||||
case "answer":
|
||||
p.deferred <- func() {
|
||||
msgctx, cancel := context.WithTimeout(context.Background(), p.mcu.mcuTimeout)
|
||||
defer cancel()
|
||||
|
||||
if data.Sid == "" || data.Sid == p.Sid() {
|
||||
p.sendAnswer(msgctx, jsep_msg, callback)
|
||||
} else {
|
||||
go callback(fmt.Errorf("Answer message sid (%s) does not match subscriber sid (%s)", data.Sid, p.Sid()), nil)
|
||||
}
|
||||
}
|
||||
case "candidate":
|
||||
p.deferred <- func() {
|
||||
msgctx, cancel := context.WithTimeout(context.Background(), p.mcu.mcuTimeout)
|
||||
defer cancel()
|
||||
|
||||
if data.Sid == "" || data.Sid == p.Sid() {
|
||||
p.sendCandidate(msgctx, jsep_msg["candidate"], callback)
|
||||
} else {
|
||||
go callback(fmt.Errorf("Candidate message sid (%s) does not match subscriber sid (%s)", data.Sid, p.Sid()), nil)
|
||||
}
|
||||
}
|
||||
case "endOfCandidates":
|
||||
// Ignore
|
||||
case "selectStream":
|
||||
stream, err := parseStreamSelection(jsep_msg)
|
||||
if err != nil {
|
||||
go callback(err, nil)
|
||||
return
|
||||
}
|
||||
|
||||
if stream == nil || !stream.HasValues() {
|
||||
// Nothing to do
|
||||
go callback(nil, nil)
|
||||
return
|
||||
}
|
||||
|
||||
p.deferred <- func() {
|
||||
msgctx, cancel := context.WithTimeout(context.Background(), p.mcu.mcuTimeout)
|
||||
defer cancel()
|
||||
|
||||
p.selectStream(msgctx, stream, callback)
|
||||
}
|
||||
default:
|
||||
// Return error asynchronously
|
||||
go callback(fmt.Errorf("Unsupported message type: %s", data.Type), nil)
|
||||
}
|
||||
}
|
99
publisher_stats_counter.go
Normal file
99
publisher_stats_counter.go
Normal file
|
@ -0,0 +1,99 @@
|
|||
/**
|
||||
* Standalone signaling server for the Nextcloud Spreed app.
|
||||
* Copyright (C) 2021 struktur AG
|
||||
*
|
||||
* @author Joachim Bauch <bauch@struktur.de>
|
||||
*
|
||||
* @license GNU AGPL version 3 or any later version
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Affero General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Affero General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Affero General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
package signaling
|
||||
|
||||
import (
|
||||
"sync"
|
||||
)
|
||||
|
||||
type publisherStatsCounter struct {
|
||||
mu sync.Mutex
|
||||
|
||||
streamTypes map[StreamType]bool
|
||||
subscribers map[string]bool
|
||||
}
|
||||
|
||||
func (c *publisherStatsCounter) Reset() {
|
||||
c.mu.Lock()
|
||||
defer c.mu.Unlock()
|
||||
|
||||
count := len(c.subscribers)
|
||||
for streamType := range c.streamTypes {
|
||||
statsMcuPublisherStreamTypesCurrent.WithLabelValues(string(streamType)).Dec()
|
||||
statsMcuSubscriberStreamTypesCurrent.WithLabelValues(string(streamType)).Sub(float64(count))
|
||||
}
|
||||
c.streamTypes = nil
|
||||
c.subscribers = nil
|
||||
}
|
||||
|
||||
func (c *publisherStatsCounter) EnableStream(streamType StreamType, enable bool) {
|
||||
c.mu.Lock()
|
||||
defer c.mu.Unlock()
|
||||
|
||||
if enable == c.streamTypes[streamType] {
|
||||
return
|
||||
}
|
||||
|
||||
if enable {
|
||||
if c.streamTypes == nil {
|
||||
c.streamTypes = make(map[StreamType]bool)
|
||||
}
|
||||
c.streamTypes[streamType] = true
|
||||
statsMcuPublisherStreamTypesCurrent.WithLabelValues(string(streamType)).Inc()
|
||||
statsMcuSubscriberStreamTypesCurrent.WithLabelValues(string(streamType)).Add(float64(len(c.subscribers)))
|
||||
} else {
|
||||
delete(c.streamTypes, streamType)
|
||||
statsMcuPublisherStreamTypesCurrent.WithLabelValues(string(streamType)).Dec()
|
||||
statsMcuSubscriberStreamTypesCurrent.WithLabelValues(string(streamType)).Sub(float64(len(c.subscribers)))
|
||||
}
|
||||
}
|
||||
|
||||
func (c *publisherStatsCounter) AddSubscriber(id string) {
|
||||
c.mu.Lock()
|
||||
defer c.mu.Unlock()
|
||||
|
||||
if c.subscribers[id] {
|
||||
return
|
||||
}
|
||||
|
||||
if c.subscribers == nil {
|
||||
c.subscribers = make(map[string]bool)
|
||||
}
|
||||
c.subscribers[id] = true
|
||||
for streamType := range c.streamTypes {
|
||||
statsMcuSubscriberStreamTypesCurrent.WithLabelValues(string(streamType)).Inc()
|
||||
}
|
||||
}
|
||||
|
||||
func (c *publisherStatsCounter) RemoveSubscriber(id string) {
|
||||
c.mu.Lock()
|
||||
defer c.mu.Unlock()
|
||||
|
||||
if !c.subscribers[id] {
|
||||
return
|
||||
}
|
||||
|
||||
delete(c.subscribers, id)
|
||||
for streamType := range c.streamTypes {
|
||||
statsMcuSubscriberStreamTypesCurrent.WithLabelValues(string(streamType)).Dec()
|
||||
}
|
||||
}
|
Loading…
Reference in a new issue