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Add Retransmission and FEC to TrackLocal

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If the MediaEngine contains support for them a SSRC will be generated
appropriately

Co-authored-by: aggresss <aggresss@163.com>
Co-authored-by: Kevin Wang <kevmo314@gmail.com>

Resolves #1989
Resolves #1675
This commit is contained in:
Sean DuBois
2024-10-01 09:23:24 -04:00
parent bd2309f7f4
commit 4541b73b1a
21 changed files with 467 additions and 119 deletions
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24
interceptor.go
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@@ -159,7 +159,7 @@ func (i *interceptorToTrackLocalWriter) Write(b []byte) (int, error) {
return i.WriteRTP(&packet.Header, packet.Payload)
}
func createStreamInfo(id string, ssrc SSRC, payloadType PayloadType, codec RTPCodecCapability, webrtcHeaderExtensions []RTPHeaderExtensionParameter) *interceptor.StreamInfo {
func createStreamInfo(id string, ssrc, ssrcFEC, ssrcRTX SSRC, payloadType PayloadType, codec RTPCodecCapability, webrtcHeaderExtensions []RTPHeaderExtensionParameter) *interceptor.StreamInfo {
headerExtensions := make([]interceptor.RTPHeaderExtension, 0, len(webrtcHeaderExtensions))
for _, h := range webrtcHeaderExtensions {
headerExtensions = append(headerExtensions, interceptor.RTPHeaderExtension{ID: h.ID, URI: h.URI})
@@ -171,15 +171,17 @@ func createStreamInfo(id string, ssrc SSRC, payloadType PayloadType, codec RTPCo
}
return &interceptor.StreamInfo{
ID: id,
Attributes: interceptor.Attributes{},
SSRC: uint32(ssrc),
PayloadType: uint8(payloadType),
RTPHeaderExtensions: headerExtensions,
MimeType: codec.MimeType,
ClockRate: codec.ClockRate,
Channels: codec.Channels,
SDPFmtpLine: codec.SDPFmtpLine,
RTCPFeedback: feedbacks,
ID: id,
Attributes: interceptor.Attributes{},
SSRC: uint32(ssrc),
SSRCRetransmission: uint32(ssrcRTX),
SSRCForwardErrorCorrection: uint32(ssrcFEC),
PayloadType: uint8(payloadType),
RTPHeaderExtensions: headerExtensions,
MimeType: codec.MimeType,
ClockRate: codec.ClockRate,
Channels: codec.Channels,
SDPFmtpLine: codec.SDPFmtpLine,
RTCPFeedback: feedbacks,
}
}