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Add remote track channelCount #3025

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Add remote track channelCount #3025

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308a590
Add remote track channelCount
henbos Nov 26, 2024
9cde211
Merge branch 'main' into 241126_channelCount
henbos Nov 28, 2024
3579baa
Update description
henbos Nov 28, 2024
5d27f27
data-tests
henbos Nov 28, 2024
c4a49af
Merge branch 'main' into 241126_channelCount
dontcallmedom Jan 17, 2025
7475848
Fix amendments.json
dontcallmedom Jan 17, 2025
7eff351
Fix amendments.json
dontcallmedom Jan 17, 2025
20dbf35
Update amendments.json
henbos Mar 27, 2025
61999b9
Address dom comments
henbos Mar 27, 2025
becc7a3
Add MUST language
henbos Mar 27, 2025
57dbd50
nit
henbos Mar 27, 2025
135f52e
Merge branch 'main' into 241126_channelCount
henbos Mar 27, 2025
7f3c5eb
Adapt amendments to appended rows
dontcallmedom Mar 27, 2025
3e03beb
Merge branch 'main' into 241126_channelCount
henbos Mar 28, 2025
577d9cb
Clarify and take stereo flag into account
henbos Mar 28, 2025
ced7c79
Merge branch '241126_channelCount' of https://github.com/henbos/webrt…
henbos Mar 28, 2025
953516d
Local SDP
henbos Mar 28, 2025
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15 changes: 15 additions & 0 deletions amendments.json
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Original file line number Diff line number Diff line change
Expand Up @@ -1243,6 +1243,21 @@
]
}
],
"remote-track-settings-channel-count": [
{
"description": "Add channelCount to remote track settings",
"type": "addition",
"status": "candidate",
"difftype": "append",
"id": 53,
"pr": 3025,
"tests": [
"webrtc/RTCRtpEncodingParameters-codec-opus-stereo.https.html"
],
"testUpdates": [
"web-platform-tests/wpt#48599",
"web-platform-tests/wpt#49392"
=======
"codec-match-without-level-id": [
{
"description": "Two codecs are considered the same even if level-id is not",
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1 change: 1 addition & 0 deletions base-rec.html
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Expand Up @@ -15949,6 +15949,7 @@ <h4 id="x9-3-1-mediatracksupportedconstraints-mediatrackcapabilities-mediatrackc
double rounded to the tenth decimal place.
</td>
</tr>
<div id="remote-track-settings-channel-count"><!-- ammendment --></div>
</tbody>
</table>
<p class="no-test-needed">
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15 changes: 15 additions & 0 deletions webrtc.html
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Expand Up @@ -16677,6 +16677,21 @@ <h4>
double rounded to the tenth decimal place.
</td>
</tr>
<div id="remote-track-settings-channel-count">
<tr id="def-constraint-channelCount">
<th data-tests="RTCRtpEncodingParameters-codec-opus-stereo.https.html">
channelCount
</th>
<td>
{{ConstrainULong}}
</td>
<td>
As a setting, this is the number of channels of the latest
audio frame received, reflecting the number of
{{RTCRtpCodec/channels}} that the decoder outputted.
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Comment from Youenn: make this more clear that you MUST do what the decoder is capable of

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Also to refresh our memories about the conclusion: we have go-ahead to return 2 here and as per discussion, saying MUST here was preferred.

I updated this sentence to say "A stereo capable decoder MUST produce stereo and return the value 2.

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The WPT also reflects the "always do stereo on the receiving track" decision.

</td>
</tr>
</div>
</tbody>
</table>
<p class="no-test-needed">
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