Welcome to qc.ebu.io
What is this?
qc.ebu.io basically is a database of definitions of Quality Control tests for audio-visual material. It also hosts reference and example test material (audio and/or video sequences).
The tests are used by media companies to verify content, for example when exchanging material with other parties, or when migrating archives.
The qc.ebu.io collection functions as an industry reference and helps ensure different QC tool implementations give comparable results for the same Tests. This is important, as providers and users of audiovisual material may not use the same QC product. It also helps educate media staff on what can go wrong with material/what errors to look for.
Besides hosting the collection of existing QC Test Definitions, qc.ebu.io is also used as an authoring tool to create new QC Test definitions. This is a collaborative effort, taking place in the EBU QC Group.
License
The qc.ebu.io Test Items are published under the Creative Commons Attribution 4.0 International license (CC-BY 4.0), except for the Test materials, which may be provided under a different license. See the individual Test Material 'remarks' for the license that applies.
Getting started
Start here if qc.ebu.io is new to you.
- A quick tour - what the menu items do
- Background - why a shared QC test collection exists
- Terminology - QC Item, Template, Editor, Test Material
- Signing in - accounts, roles, and why access can lag behind
- User roles - who can see and do what
The two things you will use most
- QC Items - the test definitions themselves
- Card colours
- Categories
- Layers
- Status
- Versioning
- URLs - versioned vs. latest
- QC Templates - selections of QC Items, and what a QC workflow is built from
- QC Test Materials - audio and video to test against
Reference
The detail behind the Items. Worth reading before interpreting a test definition, or before writing one.
- What is implicit for all QC Items - the rules that apply to every Item unless it says otherwise. Read this one.
- Parameters - Types, Representations, Units and Ranges
- Dictionary - globally defined terms
- QC Tags
How do I...
- Find the Items I need - quick filter, advanced filters, the five Item views, CSV export
- Get e-mailed when something changes - watching Items and notification settings
- Manage my account - what qc.ebu.io knows about me, and what it sends me
For editors
- Referencing related information - linking to Terms, Items and Editors while writing
- Discussions - user discussions and editor discussions
- Management functions - deleting parameter values
- API v2 validator
To the qc.ebu.io tool
More guidance and tools
Feedback & support
- EBU QC Group
- Support: e-mail to tech@ebu.ch