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Generate transceivers from incoming SDP.

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This commit is contained in:
Juliusz Chroboczek 2021-01-11 20:24:09 +01:00
parent 1ca4c76667
commit dad113c1f9
3 changed files with 23 additions and 22 deletions
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1
go.mod
View file

@ -8,6 +8,7 @@ require (
github.com/pion/ice/v2 v2.0.14 github.com/pion/ice/v2 v2.0.14
github.com/pion/rtcp v1.2.6 github.com/pion/rtcp v1.2.6
github.com/pion/rtp v1.6.2 github.com/pion/rtp v1.6.2
github.com/pion/sdp/v3 v3.0.3
github.com/pion/webrtc/v3 v3.0.2-0.20201230060242-921608c26b93 github.com/pion/webrtc/v3 v3.0.2-0.20201230060242-921608c26b93
golang.org/x/crypto v0.0.0-20201217014255-9d1352758620 golang.org/x/crypto v0.0.0-20201217014255-9d1352758620
) )

22
rtpconn/rtpconn.go
View file

@ -11,6 +11,7 @@ import (
"github.com/pion/rtcp" "github.com/pion/rtcp"
"github.com/pion/rtp" "github.com/pion/rtp"
"github.com/pion/sdp/v3"
"github.com/pion/webrtc/v3" "github.com/pion/webrtc/v3"
"github.com/jech/galene/conn" "github.com/jech/galene/conn"
@ -458,13 +459,21 @@ func pushConn(up *rtpUpConnection, g *group.Group, cs []group.Client) {
}(g, cs) }(g, cs)
} }
func newUpConn(c group.Client, id string, labels map[string]string) (*rtpUpConnection, error) { func newUpConn(c group.Client, id string, labels map[string]string, offer string) (*rtpUpConnection, error) {
var o sdp.SessionDescription
err := o.Unmarshal([]byte(offer))
if err != nil {
return nil, err
}
pc, err := c.Group().API().NewPeerConnection(*ice.ICEConfiguration()) pc, err := c.Group().API().NewPeerConnection(*ice.ICEConfiguration())
if err != nil { if err != nil {
return nil, err return nil, err
} }
_, err = pc.AddTransceiverFromKind(webrtc.RTPCodecTypeAudio, for _, m := range o.MediaDescriptions {
_, err = pc.AddTransceiverFromKind(
webrtc.NewRTPCodecType(m.MediaName.Media),
webrtc.RtpTransceiverInit{ webrtc.RtpTransceiverInit{
Direction: webrtc.RTPTransceiverDirectionRecvonly, Direction: webrtc.RTPTransceiverDirectionRecvonly,
}, },
@ -473,15 +482,6 @@ func newUpConn(c group.Client, id string, labels map[string]string) (*rtpUpConne
pc.Close() pc.Close()
return nil, err return nil, err
} }
_, err = pc.AddTransceiverFromKind(webrtc.RTPCodecTypeVideo,
webrtc.RtpTransceiverInit{
Direction: webrtc.RTPTransceiverDirectionRecvonly,
},
)
if err != nil {
pc.Close()
return nil, err
} }
up := &rtpUpConnection{id: id, pc: pc, labels: labels} up := &rtpUpConnection{id: id, pc: pc, labels: labels}

6
rtpconn/webclient.go
View file

@ -206,7 +206,7 @@ func getUpConns(c *webClient) []*rtpUpConnection {
return up return up
} }
func addUpConn(c *webClient, id string, labels map[string]string) (*rtpUpConnection, bool, error) { func addUpConn(c *webClient, id string, labels map[string]string, offer string) (*rtpUpConnection, bool, error) {
c.mu.Lock() c.mu.Lock()
defer c.mu.Unlock() defer c.mu.Unlock()
@ -222,7 +222,7 @@ func addUpConn(c *webClient, id string, labels map[string]string) (*rtpUpConnect
return old, false, nil return old, false, nil
} }
conn, err := newUpConn(c, id, labels) conn, err := newUpConn(c, id, labels, offer)
if err != nil { if err != nil {
return nil, false, err return nil, false, err
} }
@ -488,7 +488,7 @@ func gotOffer(c *webClient, id string, sdp string, renegotiate bool, labels map[
delUpConn(c, id) delUpConn(c, id)
} }
up, isnew, err := addUpConn(c, id, labels) up, isnew, err := addUpConn(c, id, labels, sdp)
if err != nil { if err != nil {
return err return err
} }