# WIA-MEDIA-001 — Streaming

> 스트리밍 표준 — 미디어 스트리밍 · ABR · 저지연 · CDN · DRM

## Scope

This standard documents the WIA Standards canonical envelope shape,
API surface, protocol exchanges, and ecosystem integration for
streaming hosts that need to interoperate across
jurisdictions, vendors, and operational contexts. The standard
composes with the wider WIA Standards family to inherit cross-
standard composition, audit transport, and federation handshakes
without per-standard re-implementation.

## Normative references

- MPEG-DASH per ISO/IEC 23009-1
- Apple HLS per IETF Internet-Draft
- CMAF per ISO/IEC 23000-19
- WebRTC per W3C / IETF RFC 8825
- DRM per W3C EME + Common Encryption ISO/IEC 23001-7
- SCTE 35 / SCTE 224 ad insertion
- ATSC 3.0 (A/300 series)
- IETF RFC 8216 HLS
- DVB MPEG-DASH Profile (TS 103 285)

## Phase organisation

The standard is published in four Phase files:

- `spec/PHASE-1-DATA-FORMAT.md` (or PHASE-1-FOUNDATION.md) — wire-format envelopes
- `spec/PHASE-2-API.md` (or PHASE-2-DATA.md) — REST + JSON-RPC surface
- `spec/PHASE-3-PROTOCOL.md` — protocol exchanges and federation
- `spec/PHASE-4-INTEGRATION.md` — ecosystem composition and compliance

## eBook companion

A learner-focused 8-chapter eBook is published in both Korean and
English at `ebook/ko/` and `ebook/en/`:

1. MPEG-DASH per ISO/IEC 23009-1
2. HLS per RFC 8216bis
3. CMAF per ISO/IEC 23000-19
4. Adaptive Bitrate Algorithms
5. DRM per W3C EME and CENC
6. Server-Side Ad Insertion (SSAI)
7. Low-Latency Live (LL-HLS / DASH-LL)
8. Origin / CDN Architecture

## CLI

A POSIX shell helper is published at `cli/streaming.sh`. The helper ships
sample envelope generators with no dependencies beyond `jq` and POSIX
shell so integrators can exercise the contract before wiring real
backends.

## Reference simulator

A browser-based reference simulator is published at `simulator/index.html`.
The simulator surfaces every Phase 1 envelope and walks every Phase 2
endpoint exchange so adopters can study the contract behaviour before
integrating with a real backend.

## Conformance

A standard is conformant when:

1. Every Phase 1 envelope it emits validates against the published
   JSON Schema for that envelope class
2. Every Phase 2 endpoint it exposes honours the documented status
   codes, content shapes, and error envelopes
3. Every Phase 3 protocol exchange it participates in honours the
   handshake order, signature requirements, and audit hook contract
4. Phase 4 ecosystem composition reaches the required cross-standard
   capabilities (audit transport, identity, federation) per the
   Phase 4 §4 capability matrix

## Governance

Maintained under the WIA Standards public-benefit governance model.
See `https://wiastandards.com/governance/` for committee composition,
voting rules, and the per-standard release calendar.

弘益人間 — Benefit All Humanity.