rfc9628v6.txt		rfc9628.txt
	skipping to change at line 951 ¶		skipping to change at line 951 ¶
	adapt the transmission rate by instructing the encoder to encode at a		adapt the transmission rate by instructing the encoder to encode at a
	certain target rate. Media-aware network elements MAY use the		certain target rate. Media-aware network elements MAY use the
	information in the VP9 payload descriptor in Section 4.2 to identify		information in the VP9 payload descriptor in Section 4.2 to identify
	non-reference frames and discard them in order to reduce network		non-reference frames and discard them in order to reduce network
	congestion. Note that discarding of non-reference frames cannot be		congestion. Note that discarding of non-reference frames cannot be
	done if the stream is encrypted (because the non-reference marker is		done if the stream is encrypted (because the non-reference marker is
	encrypted).		encrypted).
	10. IANA Considerations		10. IANA Considerations
	IANA has registered the media type registration "video/vp9" as		IANA has registered the media type "video/vp9" as specified in
	specified in Section 7. The media type has also been added to the		Section 7. The media type has also been added to the "RTP Payload
	"RTP Payload Format Media Types" <https://www.iana.org/assignments/		Format Media Types" registry of the "Real-Time Transport Protocol
	rtp-parameters> registry of the "Real-Time Transport Protocol (RTP)		(RTP) Parameters" registry group (https://www.iana.org/assignments/
	Paramaeters" registry group as follows.		rtp-parameters) as follows.
	Media Type: video		Media Type: video
	Subtype: VP9		Subtype: VP9
	Clock Rate (Hz): 90000		Clock Rate (Hz): 90000
	Reference: RFC 9628		Reference: RFC 9628
	11. References		11. References
	11.1. Normative References		11.1. Normative References
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