New Track API

The Pion WebRTC API has been dramatically redesigned. The design docs
are located here [0]

You can also read the release notes [1] on how to migrate your
application.

[0] https://github.com/pion/webrtc-v3-design
[1] https://github.com/pion/webrtc/wiki/Release-WebRTC@v3.0.0
This commit is contained in:
Sean DuBois
2020-11-11 12:03:08 -08:00
parent 159ba5aca3
commit 7edfb701e0
46 changed files with 1750 additions and 2059 deletions

View File

@@ -10,34 +10,7 @@ import (
)
func main() {
// Wait for the offer to be pasted
offer := webrtc.SessionDescription{}
signal.Decode(signal.MustReadStdin(), &offer)
// We make our own mediaEngine so we can place the sender's codecs in it. This because we must use the
// dynamic media type from the sender in our answer. This is not required if we are the offerer
mediaEngine := webrtc.MediaEngine{}
err := mediaEngine.PopulateFromSDP(offer)
if err != nil {
panic(err)
}
// Search for VP8 Payload type. If the offer doesn't support VP8 exit since
// since they won't be able to decode anything we send them
var payloadType uint8
for _, videoCodec := range mediaEngine.GetCodecsByKind(webrtc.RTPCodecTypeVideo) {
if videoCodec.Name == "VP8" {
payloadType = videoCodec.PayloadType
break
}
}
if payloadType == 0 {
panic("Remote peer does not support VP8")
}
// Create a new RTCPeerConnection
api := webrtc.NewAPI(webrtc.WithMediaEngine(mediaEngine))
peerConnection, err := api.NewPeerConnection(webrtc.Configuration{
peerConnection, err := webrtc.NewPeerConnection(webrtc.Configuration{
ICEServers: []webrtc.ICEServer{
{
URLs: []string{"stun:stun.l.google.com:19302"},
@@ -74,8 +47,8 @@ func main() {
panic(err)
}
// Create a video track, using the same SSRC as the incoming RTP Packet
videoTrack, err := peerConnection.NewTrack(payloadType, packet.SSRC, "video", "pion")
// Create a video track
videoTrack, err := webrtc.NewTrackLocalStaticRTP(webrtc.RTPCodecCapability{MimeType: "video/vp8"}, "video", "pion")
if err != nil {
panic(err)
}
@@ -89,6 +62,10 @@ func main() {
fmt.Printf("Connection State has changed %s \n", connectionState.String())
})
// Wait for the offer to be pasted
offer := webrtc.SessionDescription{}
signal.Decode(signal.MustReadStdin(), &offer)
// Set the remote SessionDescription
if err = peerConnection.SetRemoteDescription(offer); err != nil {
panic(err)
@@ -124,13 +101,7 @@ func main() {
panic(err)
}
packet := &rtp.Packet{}
if err := packet.Unmarshal(inboundRTPPacket[:n]); err != nil {
panic(err)
}
packet.Header.PayloadType = payloadType
if writeErr := videoTrack.WriteRTP(packet); writeErr != nil {
if _, writeErr := videoTrack.Write(inboundRTPPacket[:n]); writeErr != nil {
panic(writeErr)
}
}