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Return an error when adding a duplicate down track.
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parent
73f72c45fc
commit
d9e72f4fd0
1 changed files with 14 additions and 2 deletions
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@ -403,6 +403,20 @@ func addDownTrack(c *webClient, conn *rtpDownConnection, remoteTrack conn.UpTrac
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return nil, errors.New("unexpected up track type")
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}
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conn.mu.Lock()
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defer conn.mu.Unlock()
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remoteSSRC := rt.track.SSRC()
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for _, t := range conn.tracks {
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tt, ok := t.remote.(*rtpUpTrack)
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if !ok {
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return nil, errors.New("unexpected up track type")
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}
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if tt.track.SSRC() == remoteSSRC {
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return nil, os.ErrExist
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}
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}
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local, err := webrtc.NewTrackLocalStaticRTP(
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remoteTrack.Codec(),
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rt.track.ID(), rt.track.StreamID(),
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@ -431,9 +445,7 @@ func addDownTrack(c *webClient, conn *rtpDownConnection, remoteTrack conn.UpTrac
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atomics: &downTrackAtomics{},
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}
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conn.mu.Lock()
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conn.tracks = append(conn.tracks, track)
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conn.mu.Unlock()
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go rtcpDownListener(conn, track, sender)
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