:warning: This file is part of the "archive" – it could contain statements or terms which are incompatible with the main body of the specification and the identity and timing model. :warning:
Production Operations
This document explores a range of common production operations and the requirements for tracking identity and timing through them.
Basic Operations
The following set of basic operations have been identified (and grouped).
Grey SCs & TVIs: If the content is modified for purely technical reasons, it's likely to be the same TVI / SC. If it's modified for editorial reasons it's likely to be a new TVI / SC. If in doubt, considering each case as a new TVI / SC would avoid errors, but might mean additional steps for users in navigating between similar media.
No Identity Change
- Storage
- Stored Content Access (ie. no re-timing)
- Internal Lossless Format Conversion (ie. within 'black box')
- Data Transfer
- Buffer / Highly Latent Connection
0:1 TDS
New TDS, New SC, Same TVI
- Capture
1:0 TDS
No New TDS, No New SC, Same TVI
- Output
1:1 TDS
New TDS, New SC, New TVI
- Slow Motion / Speed Up
- Stored Content Replay (ie. with re-timing)
- Time Shift
- Content Analysis
- Frame Synchroniser / Rate Conforming Operation
- Variable Time Shift (including Delay Line)
New TDS, New SC, Same TVI
- Time Context Re-Mapping
New TDS, Same SC Permitted (due to same TVI), Same TVI
- Audio / Video Bit Depth Modification
- Chroma Subsampling Modification
- Byte Packing Modification
- Colorspace Conversion
- Colour Encoding Conversion
- Video Resolution Modification
- Sample Rate Conversion
- Encode / Decode
New TDS, Grey SC (due to grey TVI), Grey TVI
- Amplify / Attenuate
- Video Crop / Zoom
- Video Squeeze / Squash
- Conversion to monochrome
- EQ Modification
1..*:1 TDS
New TDS, New SC, New TVI
- Switch
- Mix
- Combine
- Video Keying
- DOG Overlay / Insertion
- Audio / Video Watermarking
1:1..* TDS
New TDS, New SC, New TVI
- Split