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41 lines
1.2 KiB
Go
41 lines
1.2 KiB
Go
package webrtc
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// SDPSemantics determines which style of SDP offers and answers
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// can be used
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type SDPSemantics int
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const (
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// SDPSemanticsUnifiedPlan uses unified-plan offers and answers
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// (the default in Chrome since M72)
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// https://tools.ietf.org/html/draft-roach-mmusic-unified-plan-00
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SDPSemanticsUnifiedPlan SDPSemantics = iota
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// SDPSemanticsPlanB uses plan-b offers and answers
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// NB: This format should be considered deprecated
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// https://tools.ietf.org/html/draft-uberti-rtcweb-plan-00
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SDPSemanticsPlanB
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// SDPSemanticsUnifiedPlanWithFallback prefers unified-plan
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// offers and answers, but will respond to a plan-b offer
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// with a plan-b answer
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SDPSemanticsUnifiedPlanWithFallback
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)
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const (
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sdpSemanticsUnifiedPlanWithFallback = "unified-plan-with-fallback"
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sdpSemanticsUnifiedPlan = "unified-plan"
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sdpSemanticsPlanB = "plan-b"
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)
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func (s SDPSemantics) String() string {
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switch s {
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case SDPSemanticsUnifiedPlanWithFallback:
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return sdpSemanticsUnifiedPlanWithFallback
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case SDPSemanticsUnifiedPlan:
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return sdpSemanticsUnifiedPlan
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case SDPSemanticsPlanB:
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return sdpSemanticsPlanB
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default:
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return ErrUnknownType.Error()
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}
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}
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