Amended WebRTC Interoperability Tests Results

Summary - October, 2024

Untested amendments:

• Allow remote offer rid pruning of encodings through the client answer. * 2758
• Make RTCTransceiver.direction reflects local preference in offers and answers * 2759
• Don't fail sRD(offer) over rid mismatch, just answer with unicast. * 2794
• Prune createAnswer()'s encodings and SendEncodings in sLD(answer). * 2801
• Determine if DTMF can be sent inside queued playout task 2861

Amendments without implementations:

• Remove duplicate rids in proposedSendEncodings. * 2800 - see FF discussion on whether tests regressed
• Ignore comma-separated rid alternatives. * 2813 - see FF discussion on whether tests regressed
• Use the url spec to parse ice server urls * 2853
• Convert RTCIceCandidatePair dictionary to an interface 2961

Amendment with only one implementation:

• Forbid ICE gathering and connectivity checks on administrative prohibited candidates 2708 (only FF - but partial impl in Cr/Safari)
• Remove interaction between encoding.active and simulcast ~rid * 2754 (only FF)
• Mark RTP Pause/Resume as not supported * 2755 (only FF)
• Add RTCIceCandidate.relayProtocol * 2763 (only Cr - see FF bug)
• Add RTCIceCandidate.url * 2773 (only Cr - see FF bug)
• TypeError unless all or none of encodings have rids and on duplicate rids * 2774 (only FF)
• TypeError unless all or none of encodings have rids and on duplicate rids * 2775 (only FF)
• Rollback restores ridless encoding trounced by sRD(simulcastOffer). * 2797 (only FF)
• Align MTI stats with implementations * 2832 (only Cr - see FF bug)
• Queue two tasks upon finishing ICE gathering, and fire gatheringstatechange & icegatheringstatechange in same task 2894 (only FF)
• setCodecPreferences() must use case-insensitive mimeType comparison * 2975 (only FF)
• Add codec to RTCRtpEncodingParameters * 2985 (only Cr)

Amendment with sufficient implementation experience:

• Allow an implementation-defined limited to the number of configured ICE Servers * 2679 (untestable)
• Update <code>RTCIceGatheringState</code> to clarify the relevant transport it represents * 2680
• Replace <code>DOMTimeStamp</code> in the definition of the <code>RTCCertificateExpiration.expires</code> and of <code>RTCCertificate.expires</code>, and change its origin to certificate creation time * 2686 (untestable)
• Ensure the <code>connecting</code> state happens whenever a ICE or DTLS transport is new * 2687
• Validate ICE transport settings upfront when setting a configuration * 2689
• Set default values of the <code>RTCConfiguration</code> dictionary, aligning it with current implementations * 2691
• Replace <code>DOMTimeStamp</code> in the definition of the <code>RTCCertificateExpiration.expires</code> and of <code>RTCCertificate.expires</code>, and change its origin to certificate creation time * 2700 (untestable)
• Put ICE transport connection in <code>failed</code> state when no candidates are received 2704 (untestable)
• No longer queue a task in the determine DTMF algorithm 2742
• Align MTI stats with implementations * 2744
• Align MTI stats with implementations * 2748
• Remove unused RTCRtpDecodingParameters dictionary 2753 (untestable)
• Clarify simulcast envelope is determined by negotiation * 2760 (ad-hoc testing)
• Remove single-value RTCIceCredentialType enum 2767 (untestable)
• Default RTCRtpEncodingParameters.scaleResolutionDownBy to 1 for video * Remove RTCRtpEncodingParameters.scaleResolutionDownBy for audio * 2772
• Add RTCRtpEncodingParameters.maxFramerate * 2785
• Remove maxFramerate like scaleResolutionDownBy for audio * 2799
• Allow encoder resolution alignment in scaleResolutionDownBy. 2808 (untestable)
• Reject setParameters(), replaceTrack(), & insertDTMF() after stop() * 2829
• Update explanation of simulcast envelope. * 2814 (untestable)
• Create RTCRtpCodec dictionary and reuse in RTCRtpCodecCapability and RTCRtpCodecParameters definitions 2834 (untestable)
• Make RTCRtpHeaderExtensionCapability.uri required 2841 (untestable)
• Fix ambiguities in the setCodecPreferences() algorithm * 2847
• Make removeTrack() a no-op after transceiver.stop() 2875
• Don't fire connectionstatechange on pc.close() 2876
• Add empty setParameterOptions as second argument to setParameters for extensibility 2885 (untestable)
• Prevent GC of non-closed RTCDataChannels 2902
• Fix binaryType setter requirements * 2909
• Change the default value of binaryType * 2913
• setCodecPreferences only takes into account receive codecs 2926
• Add control for the receiver's jitter buffer 2953
• Make RTCDataChannel transferable to DedicatedWorker 2988

Annotated WPT results