This page summarizes groups mentioned throughout this document's pages, along with the name of the specifications and features that these groups are (or were) responsible for. Please refer to individual pages for details about the relevance and status of each work.

List of groups

GroupSpecificationMention
Audio Community GroupAudio Device ClientAudio rendering
in Media rendering
Audio Working GroupWeb Audio APIAudio/Video rendering
in Media rendering
Audio control
in Playback controls
Audio Processing
in Media processing
Audio synchronization
in Media orchestration
Audiobooks Working GroupAudiobooksMedia packaging
in Media distribution
Publication ManifestMedia packaging
in Media distribution
CSS Working Groupprofiled device-dependent colors in CSS Color Module Level 4Rendering in different color spaces
in Media rendering
CSS Spatial Navigation Level 1User Interface
in Playback controls
color-gamut media query in Media Queries Level 4Rendering in different color spaces
in Media rendering
Capabilities and quality
in Media distribution
Detecting Capabilities
in Device interoperability
Media Queries Level 5Rendering in different color spaces
in Media rendering
Capabilities and quality
in Media distribution
Detecting Capabilities
in Device interoperability
Web AnimationsTimeline management
in Media orchestration
Color on the Web Community GroupHigh Dynamic Range and Wide Gamut Color on the WebRendering in different color spaces
in Media rendering
Devices and Sensors Working GroupHTML Media CaptureCamera and mike capture
in Media capture
Media Capture Stream with Workerin Media processing
Network Service Discoveryin Media rendering
EPUB 3 Community GroupEPUB 3.2Media packaging
in Media distribution
GPU for the Web Working GroupWebGPUVideo processing
in Media processing
HTML Working Group Accessibility Task ForceA transcript extension for HTMLRendering of captions
in Media rendering
Immersive Web Community GroupWebVRin Media rendering
Immersive Web Working GroupWebXR Device APIRendering in VR/AR headsets
in Media rendering
Virtual reality control
in Playback controls
WebXR Gamepads Module - Level 1Virtual reality control
in Playback controls
Machine Learning for the Web Community GroupWeb Neural Network APIVideo processing
in Media processing
Media and Entertainment Interest GroupBullet Chatting ProposalRendering of captions
in Media rendering
Cloud Browser ArchitectureCloud browsing
in Media distribution
Media Timed EventsSynchronization to a media stream
in Media orchestration
Media Fragments Working GroupMedia Fragments URI 1.0 (basic)Rendering of media fragments
in Media rendering
Control position in media timeline when sharing
in Playback controls
Fragment streaming
in Media distribution
Media Resource In-band Tracks Community GroupSourcing In-band Media Resource Tracks from Media Containers into HTMLMappings
in Media distribution
Closed Captioning
in Media orchestration
Media Working GroupAutoplay Policy DetectionAutoplay
in Playback controls
Encrypted Media ExtensionsRendering of protected media
in Media rendering
Protected Media
in Media processing
Persistent usage record session in Encrypted Media ExtensionsRendering of protected media
in Media rendering
HDCP detection in Encrypted Media ExtensionsRendering of protected media
in Media rendering
Encryption scheme detection in Encrypted Media ExtensionsRendering of protected media
in Media rendering
API to find existing sessions in Encrypted Media ExtensionsRendering of protected media
in Media rendering
Media CapabilitiesCapabilities and quality
in Media distribution
Detecting Capabilities
in Device interoperability
Media Playback QualityCapabilities and quality
in Media distribution
Measuring the Quality of Experience
in Device interoperability
Media Session StandardOS-wide media control
in Playback controls
Media Source Extensions™Adaptive streaming
in Media distribution
in Media processing
Codec switching in Media Source Extensions™Adaptive streaming
in Media distribution
in Media processing
Picture-in-PictureDistributed rendering
in Media rendering
Multi-Device Timing Community GroupTiming ObjectDistributed rendering
in Media rendering
Multi-device media control
in Playback controls
Multi-device synchronization
in Media orchestration
Second Screen Working GroupOpen Screen ProtocolDistributed rendering
in Media rendering
Presentation APIDistributed rendering
in Media rendering
Remote Playback APIDistributed rendering
in Media rendering
Service Workers Working GroupService Workers 1in Media distribution
Timed Text Working GroupProposal for an Exchange Format to support Audio DescriptionRendering of captions
in Media rendering
Timed Text Markup Language 2 (TTML2) (2nd Edition)Rendering of captions
in Media rendering
Closed Captioning
in Media orchestration
TTML Profiles for Internet Media Subtitles and Captions 1.1Rendering of captions
in Media rendering
WebVTT: The Web Video Text Tracks FormatRendering of captions
in Media rendering
Closed Captioning
in Media orchestration
TV Control Working Group TV Control APITuner control
in Playback controls
Broadcast
in Media distribution
W3CEvent Timing APIMeasuring the Quality of Experience
in Device interoperability
Web Applications Working GroupMedia keys in UI Events KeyboardEvent key ValuesKey-based control
in Playback controls
Web Application ManifestMedia packaging
in Media distribution
Web Media API Community GroupWeb Media API Snapshot 2019Common baseline of the Web platform
in Device interoperability
Web Media Application Developer GuidelinesMedia Web applications Best Practices
in Device interoperability
Web Performance Working GroupFrame TimingMeasuring the Quality of Experience
in Device interoperability
High Resolution Time Level 2Measuring the Quality of Experience
in Device interoperability
Long Tasks API 1Measuring the Quality of Experience
in Device interoperability
Navigation Timing Level 2Measuring the Quality of Experience
in Device interoperability
Paint Timing 1Measuring the Quality of Experience
in Device interoperability
Performance TimelineMeasuring the Quality of Experience
in Device interoperability
Resource Timing Level 2Measuring the Quality of Experience
in Device interoperability
Server TimingMeasuring the Quality of Experience
in Device interoperability
Timing Entry Names RegistryMeasuring the Quality of Experience
in Device interoperability
User Timing Level 2Measuring the Quality of Experience
in Device interoperability
Web Platform Incubator Community GroupAccelerated Shape Detection in ImagesVideo processing
in Media processing
DataCueSynchronization to a media stream
in Media orchestration
Element Timing APIMeasuring the Quality of Experience
in Device interoperability
HTMLVideoElement.requestVideoFrameCallback()Video processing
in Media processing
Input for Workers and WorkletsInput latency
in Playback controls
Layout InstabilityMeasuring the Quality of Experience
in Device interoperability
Web PackagingMedia packaging
in Media distribution
WebCodecsMedia Encoding/Decoding
in Media processing
WebRTC Working GroupAudio Output Devices APIDistributed rendering
in Media rendering
Media Capture and StreamsTimestamp accuracy in captured content
in Media orchestration
Camera and mike capture
in Media capture
Media Capture Depth Stream Extensions3D Camera capture
in Media capture
Media Capture from DOM ElementsScreen capture
in Media capture
Media Capture Stream with Workerin Media processing
MediaStream Image CapturePhotography API
in Media capture
MediaStream RecordingRecording
in Media capture
MediaStreamTrack Content HintsRealtime distribution
in Media distribution
Scalable Video Coding (SVC) Extension for WebRTCRealtime distribution
in Media distribution
Screen CaptureScreen capture
in Media capture
WebRTC 1.0: Real-Time Communication Between BrowsersRealtime distribution
in Media distribution
WebAssembly Working GroupWebAssembly Core SpecificationImage and Video Processing
in Media processing
WebTransport Working GroupWebTransportRealtime distribution
in Media distribution
WHATWGvideo element in HTML StandardAudio/Video rendering
in Media rendering
audio element in HTML StandardAudio/Video rendering
in Media rendering
HTMLMediaElement interface in HTML StandardControl of one local media element
in Playback controls
The 2D rendering context in HTML StandardImage and Video Processing
in Media processing
requestAnimationFrame in HTML StandardImage and Video Processing
in Media processing
timeupdate event in HTML StandardTimeline management
in Media orchestration