snapshot of https://github.com/pion/webrtc.git (main, 2026-09-15; blobs > 131072B omitted)

internal/fmtp/vp9.go

@@ -0,0 +1,42 @@
+// SPDX-FileCopyrightText: 2026 The Pion community <https://pion.ly>
+// SPDX-License-Identifier: MIT
+
+package fmtp
+
+type vp9FMTP struct {
+	parameters map[string]string
+}
+
+func (h *vp9FMTP) MimeType() string {
+	return "video/vp9"
+}
+
+func (h *vp9FMTP) Match(b FMTP) bool {
+	c, ok := b.(*vp9FMTP)
+	if !ok {
+		return false
+	}
+
+	// RTP Payload Format for VP9 Video - draft-ietf-payload-vp9-16
+	// https://datatracker.ietf.org/doc/html/draft-ietf-payload-vp9-16
+	// If no profile-id is present, Profile 0 MUST be inferred
+	hProfileID, ok := h.parameters["profile-id"]
+	if !ok {
+		hProfileID = "0"
+	}
+	cProfileID, ok := c.parameters["profile-id"]
+	if !ok {
+		cProfileID = "0"
+	}
+	if hProfileID != cProfileID {
+		return false
+	}
+
+	return true
+}
+
+func (h *vp9FMTP) Parameter(key string) (string, bool) {
+	v, ok := h.parameters[key]
+
+	return v, ok
+}