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Fix ssrc-group ordering #2925

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Fix ssrc-group ordering #2925

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4 changes: 2 additions & 2 deletions sdp.go
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Original file line number Diff line number Diff line change
Expand Up @@ -393,11 +393,11 @@ func addSenderSDP(
sendParameters := sender.GetParameters()
for _, encoding := range sendParameters.Encodings {
if encoding.RTX.SSRC != 0 {
media = media.WithValueAttribute("ssrc-group", fmt.Sprintf("FID %d %d", encoding.SSRC, encoding.RTX.SSRC))
media = media.WithValueAttribute("ssrc-group", fmt.Sprintf("FID %d %d", encoding.RTX.SSRC, encoding.SSRC))
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I thought it is primary first and then RTX like the code you had before. Do I remember it wrong?

}

if encoding.FEC.SSRC != 0 {
media = media.WithValueAttribute("ssrc-group", fmt.Sprintf("FEC-FR %d %d", encoding.SSRC, encoding.FEC.SSRC))
media = media.WithValueAttribute("ssrc-group", fmt.Sprintf("FEC-FR %d %d", encoding.FEC.SSRC, encoding.SSRC))
}

media = media.WithMediaSource(uint32(encoding.SSRC), track.StreamID() /* cname */, track.StreamID() /* streamLabel */, track.ID())
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