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Align RTCEncodedVideoFrame type handling to how data is handled. #279

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Merged
merged 2 commits into from
Aug 21, 2025
Merged

Align RTCEncodedVideoFrame type handling to how data is handled. #279

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64a18b1
Align RTCEncodedVideoFrame type handling to how data is handled.
youennf Aug 21, 2025
e56b05b
Clarify type attribute getter
youennf Aug 21, 2025
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10 changes: 6 additions & 4 deletions index.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -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>
Expand All @@ -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,
Expand Down Expand Up @@ -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]]`.

Expand Down Expand Up @@ -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">
Expand Down