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Redefine SendCodecs and ReceiveCodecs
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to contain all supported codecs, revealing only those that are
"enabled" at any given time.

Fixes: #2925
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@alvestrand
alvestrand committed Feb 6, 2024
1 parent d3a5c60 commit 9499ffa
Showing 1 changed file with 41 additions and 32 deletions.
73 changes: 41 additions & 32 deletions webrtc.html
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Original file line number Diff line number Diff line change
Expand Up @@ -2246,11 +2246,13 @@ <h4>
</li>
<li>
<p>
Set
<var>transceiver</var>.{{RTCRtpTransceiver/[[Receiver]]}}.{{RTCRtpReceiver/[[ReceiveCodecs]]}}
to the codecs that <var>description</var>
negotiates for receiving and which the user
agent is currently prepared to receive.
For each of the codecs that <var>description</var> negotiates for receiving:
<ol>
<li>Locate the matching codec description in <var>transceiver</var>.{{RTCRtpTransceiver/[[Receiver]]}}.{{RTCRtpReceiver/[[ReceiveCodecs]]}}.</li>
<li>If the matching codec description is not found, abort these steps.</li>
<li>Set the "enabled" flag in the matching codec description to "true".</li>
</ol>

</p>
<p class='note'>
If the <var>direction</var> is
Expand Down Expand Up @@ -2299,13 +2301,15 @@ <h4>
</li>
<li>
<p>
Set
<var>transceiver</var>.{{RTCRtpTransceiver/[[Sender]]}}.{{RTCRtpSender/[[SendCodecs]]}}
to the codecs that <var>description</var>
negotiates for sending and which the user
agent is currently capable of sending,
and set
<var>transceiver</var>.{{RTCRtpTransceiver/[[Sender]]}}.{{RTCRtpSender/[[LastReturnedParameters]]}}
For each of the codecs that <var>description</var> negotiates for sending, execute the following steps:
<ol>
<li>Locate the matching codec description in <var>transceiver</var>.{{RTCRtpTransceiver/[[Sender]]}}.{{RTCRtpSender/[[SendCodecs]]}}.</li>
<li>If the matching codec description is not found, abort these steps.</li>
<li>Set the "enabled" flag in the matching codec description to "true".</li>
</ol>
</li>
<li>
Set <var>transceiver</var>.{{RTCRtpTransceiver/[[Sender]]}}.{{RTCRtpSender/[[LastReturnedParameters]]}}
to <code>null</code>.
</p>
</li>
Expand Down Expand Up @@ -2573,11 +2577,12 @@ <h4>
</li>
<li>
<p>
Set
<var>transceiver</var>.{{RTCRtpTransceiver/[[Receiver]]}}.{{RTCRtpReceiver/[[ReceiveCodecs]]}}
to the codecs that <var>description</var>
negotiates for receiving and which the user
agent is currently prepared to receive.
For each of the codecs that <var>description</var> negotiates for receiving:
<ol>
<li>Locate the matching codec description in <var>transceiver</var>.{{RTCRtpTransceiver/[[Receiver]]}}.{{RTCRtpReceiver/[[ReceiveCodecs]]}}.</li>
<li>If the matching codec description is not found, abort these steps.</li>
<li>Set the "enabled" flag in the matching codec description to "true".</li>
</ol>
</p>
</li>
<li>
Expand All @@ -2590,11 +2595,12 @@ <h4>
<ol>
<li>
<p>
Set
<var>transceiver</var>.{{RTCRtpTransceiver/[[Sender]]}}.{{RTCRtpSender/[[SendCodecs]]}}
to the codecs that <var>description</var>
negotiates for sending and which the user
agent is currently capable of sending.
For each of the codecs that <var>description</var> negotiates for sending:
<ol>
<li>Locate the matching codec description in <var>transceiver</var>.{{RTCRtpTransceiver/[[Sender]]}}.{{RTCRtpSender/[[SendCodecs]]}}.</li>
<li>If the matching codec description is not found, abort these steps.</li>
<li>Set the "enabled" flag in the matching codec description to "true".</li>
</ol>
</p>
</li>
<li>
Expand Down Expand Up @@ -3787,8 +3793,7 @@ <h2>
<var>transceiver</var>.{{RTCRtpTransceiver/direction}}
is {{RTCRtpTransceiverDirection/"sendonly"}}
or {{RTCRtpTransceiverDirection/"sendrecv"}},
exclude any codecs not included in the
[=RTCRtpSender/list of implemented send codecs=] for
include all codecs in the <var>transceiver</var>'s {{RTCRtpTransceiver/[[Sender]]}}'s {{RTCRtpSender/[[SendCodecs]]}} for which the "enabled" flag is "true".
<var>kind</var>.
</p>
</li>
Expand All @@ -3798,9 +3803,7 @@ <h2>
<var>transceiver</var>.{{RTCRtpTransceiver/direction}}
is {{RTCRtpTransceiverDirection/"recvonly"}}
or {{RTCRtpTransceiverDirection/"sendrecv"}},
exclude any codecs not included in the
[=list of implemented receive codecs=] for
<var>kind</var>.
include all codecs in the <var>transceiver</var>'s {{RTCRtpTransceiver/[[Receiver]]}}'s {{RTCRtpReceiver/[[ReceiveCodecs]]}} for which the "enabled" flag is "true".
</p>
</li>
</ol>
Expand Down Expand Up @@ -8851,8 +8854,10 @@ <h3>
<li>
<p>
Let <var>sender</var> have a <dfn class="export" data-dfn-for="RTCRtpSender">[[\SendCodecs]]</dfn> internal
slot, representing a list of {{RTCRtpCodecParameters}}
dictionaries, and initialized to an empty list.
slot, representing a list where each element contains an {{RTCRtpCodecParameters}}
dictionary and an "enabled" boolean, and initialized to the
[=RTCRtpSender/list of implemented send codecs=], with the "enabled" flag
set in an implementation defined manner.
</p>
</li>
<li class="no-test-needed">
Expand Down Expand Up @@ -9232,8 +9237,9 @@ <h2>
</li>
<li data-tests=
"RTCRtpParameters-codecs.html,protocol/video-codecs.https.html">
{{RTCRtpParameters/codecs}} is set to the value of the
{{RTCRtpSender/[[SendCodecs]]}} internal slot.
{{RTCRtpParameters/codecs}} is set to the codecs from the
{{RTCRtpSender/[[SendCodecs]]}} internal slot where the
"enabled" flag is true.
</li>
<li data-tests="RTCRtpParameters-encodings.html">
{{RTCRtpParameters/rtcp}}.{{RTCRtcpParameters/cname}} is
Expand Down Expand Up @@ -10265,7 +10271,9 @@ <h3>
<p>
Let <var>receiver</var> have a <dfn data-dfn-for="RTCRtpReceiver">[[\ReceiveCodecs]]</dfn>
internal slot, representing a list of {{RTCRtpCodecParameters}}
dictionaries, and initialized to an empty list.
dictionaries, and initialized to an list containing all the codecs in the
<a>list of implemented receive codecs</a> for <var>kind</var>, and with the "enabled" flag
set in an implementation defined manner.
</p>
</li>
<li>
Expand Down Expand Up @@ -10427,6 +10435,7 @@ <h2>
<li data-tests="RTCRtpReceiver-getParameters.html">
<p>
{{RTCRtpParameters/codecs}} is set to the value of the
"enabled" codecs from the
{{RTCRtpReceiver/[[ReceiveCodecs]]}} internal slot.
</p>
<div class="note">
Expand Down

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