Official Specs
Explore 18 curated Official Specs resources within Specs & Standards — practical tools and guides for video developers on Awesome Video.
About this collection
Official Specs is a specific area of Specs & Standards, part of Standards & Industry, and includes 18 curated resources.
Resources
- 2025 SMPTE Standards Round-UpOfficial SMPTE blog summarizing the year's standards development activity across the organization.
- AMWA IS-04 — NMOS Discovery and Registration SpecificationCanonical rendered spec for NMOS registration and query APIs used to discover senders/receivers in SMPTE ST 2110 IP production networks.
- AMWA IS-05 — NMOS Device Connection Management SpecificationSpec for configuring sender/receiver connections in NMOS-managed IP video networks, sharing the IS-04 data model.
- ANSI/SCTE 224-2021: Event Scheduling and Notification Interface (ESNI)Official SCTE-224 spec PDF defining the out-of-band scheduling/policy API complementing SCTE-35's in-stream ad-signaling marks.
- ATSC A/342-3:2025 — MPEG-H Audio System2025 revision of the ATSC 3.0 MPEG-H audio system specification, covering DRC target loudness fields, mae_LoudnessCompensationData and BS.1…
- AV1 Bitstream & Decoding Specification (1.0.0 with Errata 1)The official bitstream and decoding process specification for the AOMedia Video 1 (AV1) codec. Defines how AV1 video is encoded bit-by-bit…
- AVC/HEVC in ISOBMFF - ISO/IEC 14496-15Defines the carriage of AVC/HEVC in ISOBMFF
- CTA-5004: Common Media Client Data (CMCD) SpecificationThe canonical CTA specification defining CMCD keys and the HTTP header/query transport modes players use to report playback telemetry to CD…
- CTA-5006: Common Media Server Data (CMSD) SpecificationNormative spec for CMSD-Static and CMSD-Dynamic response headers, letting servers and CDNs return per-object telemetry and hints to players.
- CTA-WAVE Common Media Server Data (CMSD)CTA-WAVE specification repo for Common Media Server Data (CMSD), the server-to-client counterpart of CMCD.
- EBU ADM Guidelines — BW64 and ADM referenceOfficial EBU reference explaining BW64 container axml/chna chunks and the ITU-R BS.2076 Audio Definition Model structure for object-based a…
- HbbTV Specifications LibraryCanonical index of all HbbTV core specifications and conformance test suites for hybrid broadcast-broadband TV applications.
- IAMF — Immersive Audio Model and Formats SpecificationAOMedia's specification for immersive/scene-based audio delivery, with v1.1.0 approved (base-enhanced profile) and v2.0.0 in draft.
- SMPTE ST 2110 — Professional Media over Managed IP NetworksOfficial SMPTE standard page for ST 2110, the professional media-over-IP suite (2025 Emmy-winning standard with EBU and VSF).
- SMPTE Standards Quarterly Report, March 2025Official SMPTE quarterly report detailing status of in-progress standards including ST 2125/2126.
- draft-lcurley-moq-hang — MoQ media layer specificationDraft defining "hang", the media/catalog layer on top of MoQ transport describing tracks, groups and frame packaging for live A/V.
- draft-pantos-hls-rfc8216bis-22 — HTTP Live Streaming 2nd EditionCurrent HLS specification draft (protocol version 13, May 2026) that obsoletes RFC 8216, covering delivery directives and EXT-X-SERVER-CONT…
- latest HLS SpecThe official IETF specification document for HTTP Live Streaming, defining the protocol standards and technical requirements.