Community Spec Library
Delivery specs contributed and maintained by post houses worldwide. Airlines, regional broadcasters, niche streaming platforms — the destinations that don't publish public documentation. Verified specs are validated against real deliveries.
Contribute a Spec
Post houses deliver to platforms nobody documents. If you've reverse-engineered a spec for an airline, regional broadcaster, or niche streaming service — share it. Verified submissions are credited and kept in sync.
United Airlines IFE HD
VerifiedUnited PaxEx content delivery specification for inflight entertainment systems. MPEG-4 AVC, 1280×720, AC-3 stereo. Includes seat-back UI safe zone mapping.
Validated against 3 actual United IFE deliveries (2024–2025)
Delta Airlines IFE SD/HD
CommunityDelta Airbus/Boeing IFE delivery spec. SD 720×480 for older fleet, HD 1280×720 for newer. Strict timecode requirements, MPEG-2 for legacy systems.
Legacy fleet specs may vary. Confirm with Delta IFE content team.
Panasonic Avionics eX3 IFE
VerifiedPanasonic eX3 AVOD system delivery for carriers using Panasonic equipment (ANA, Cathay, United). H.264 baseline + AAC, specific container requirements.
Used by 3 post houses for ongoing IFE delivery contracts
CBS Broadcast HD
VerifiedCBS Television Network broadcast delivery for episodic programming. XDCAM HD 50 Mbps, OP-47 captions embedded, -24 LKFS ATSC A/85.
Current as of Q4 2025 CBS delivery guidelines
NBC Broadcast HD
VerifiedNBC Universal broadcast episodic delivery spec. Similar to CBS but different timecode and slate requirements. ProRes 422 HQ or XDCAM HD422 50 Mbps.
BBC iPlayer HD Delivery
CommunityBBC iPlayer HD content delivery for third-party productions. AS-11 (MXF with AMWA constraints) required. AS-10 for some legacy content. EBU R128 loudness.
BBC requirements vary by content type (drama vs documentary). Verify with BBC commissioning exec.
Vimeo OTT / VOD 4K
CommunityVimeo OTT (pay-per-view and subscription video) delivery spec for 4K. H.264 or HEVC MP4, -14 LUFS target, SRT or VTT captions.
DCP Flat (2K Cinema)
VerifiedSMPTE DCP for theatrical 2K flat presentation (1998×1080). JPEG 2000 MXF, PCM 24-bit 48kHz or 96kHz, 5.1 or 7.1. Interop or SMPTE packaging.
Compliant with SMPTE ST 428 and DCI specification 1.4.1
DCP Scope (2.39:1 2K Cinema)
VerifiedSMPTE DCP for theatrical 2K scope (2048×858). Widescreen anamorphic presentation. Same packaging as flat with different resolution and container.
Validated against DCI Specification 1.4.1
LinkedIn Video Ads
CommunityLinkedIn video advertising delivery. MP4 H.264, 16:9 or 1:1, 256×256 to 4096×4096, -14 LUFS. Very specific bitrate per format requirements.
X (Twitter) Video
CommunityX platform video upload spec for organic posts and media files. H.264 or H.265 MP4, max 512MB, -14 LUFS, SRT captions (limited language support).