From 64a18b1f9a8db54bd6f9ff536852c2f3ccba12e4 Mon Sep 17 00:00:00 2001
From: Youenn Fablet <youenn@apple.com>
Date: Thu, 21 Aug 2025 15:35:22 +0200
Subject: [PATCH 1/2] Align RTCEncodedVideoFrame type handling to how data is
 handled. We use a [[type]] slot and set it in constructor, as well as
 deserialization steps. We make it clear that data/type attributes are related
 to [[type]]/[[data]] slots.

---
 index.bs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/index.bs b/index.bs
index 80eaae5..098acbb 100644
--- a/index.bs
+++ b/index.bs
@@ -585,6 +585,7 @@ interface RTCEncodedVideoFrame {
             {{RTCEncodedFrameMetadata/mimeType}}.
             For <a href="https://w3c.github.io/webrtc-svc/">SVC</a>, each spatial layer
             is transformed separately.
+            On getting, |this|.`[[data]]` MUST be returned. On setting, |this|.`[[data]]` MUST be set to the new value.
         </p>
         <p class="note">
               Since packetizers may drop certain elements, e.g. AV1 temporal delimiter OBUs,
@@ -667,14 +668,14 @@ interface RTCEncodedVideoFrame {
 Their [=serialization steps=], given |value|, |serialized|, and |forStorage|, are:
 
 1. If |forStorage| is true, then throw a {{DataCloneError}}.
-1. Set |serialized|.`[[type]]` to the value of |value|.{{RTCEncodedVideoFrame/type}}.
+1. Set |serialized|.`[[type]]` to the value of |value|.`[[type]]`.
 1. Set |serialized|.`[[metadata]]` to an internal representation of |value|'s metadata.
 1. Set |serialized|.`[[data]]` to the [=sub-serialization=] of |value|.`[[data]]`.
 
 
 Their [=deserialization steps=], given |serialized|, |value| and |realm|, are:
 
-1. Set |value|.{{RTCEncodedVideoFrame/type}} to |serialized|.`[[type]]`.
+1. Set |value|.`[[type]]` to |serialized|.`[[type]]`.
 1. Set |value|'s metadata to the platform object representation of |serialized|.`[[metadata]]`.
 1. Set |value|.`[[data]]` to the [=sub-deserialization=] of |serialized|.`[[data]]`.
 
@@ -783,6 +784,7 @@ interface RTCEncodedAudioFrame {
             The encoded frame data. The format of the data depends on the audio codec that is
             used to encode/decode the frame which can be determined by looking at the
             {{RTCEncodedFrameMetadata/mimeType}}.
+            On getting, |this|.`[[data]]` MUST be returned. On setting, |this|.`[[data]]` MUST be set to the new value.
             The following table gives a number of examples:
         </p>
         <table class="simple">

From e56b05bce9f22c475361dc5529fed27ad29eb666 Mon Sep 17 00:00:00 2001
From: Youenn Fablet <youenn@apple.com>
Date: Thu, 21 Aug 2025 16:56:28 +0200
Subject: [PATCH 2/2] Clarify type attribute getter

---
 index.bs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/index.bs b/index.bs
index 098acbb..4c1e5f4 100644
--- a/index.bs
+++ b/index.bs
@@ -571,8 +571,8 @@ interface RTCEncodedVideoFrame {
     </dt>
     <dd>
         <p>
-            The type attribute allows the application to determine when a key frame is being
-            sent or received.
+            The type attribute allows the application to determine when a frame is a key frame or a delta frame.
+            On getting, |this|.`[[type]]` MUST be returned.
         </p>
     </dd>
     <dt>