In the fourth season of ‘Bruce’s Shorts’, Bruce Devlin takes a look at the Interoperable Master Format (IMF). IMF needs a generic captioning and subtitling format for the planet. Episode 5 asks “Why choose IMSC1?”
Internet Media Subtitling & Captions (IMSC1) profile of Timed-Text Markup Language (TTML), the first global standard for captions. IMSC cations can be rendered into different formats for delivery: CTA 608, CTA 708, WST and many others. IMSC is designed to be used for mastering to multiple standards, just like IMF.
If you missed episodes 1, 2 and 3:
1. What is IMF?, check this link: Bruce‘s Shorts | 4.1 - Why does IMF exist?
2. What is an IMF IMP? check this link: Bruce‘s Shorts | 4.2 - Why does IMF IMP?
3. What is an IMF CPL? check this link: Bruce's Shorts | 4.3 - What is and IMF CPL?
4. How do you QC IMF? check this link: Bruce's Shorts | 4.4 — How do you QC IMF?
IMF is standardised by the SMPTE as ST 2067.
You might also like...
OTT delivery continues to expand to meet the relentless growing consumer demand. This trend shows no chance of abating and technologists are continually looking to innovation to scale infrastructures accordingly. But what does it mean to scale OTT? Where is…
Need a live shot from inside an unmarked moving rental sedan during a thunderstorm? No problem.
Here we look at one of the first practical error-correcting codes to find wide usage. Richard Hamming worked with early computers and became frustrated when errors made them crash. The rest is history.
Error correction is fascinating not least because it involves concepts that are not much used elsewhere, along with some idiomatic terminology that needs careful definition.
Errors are handled in real channels by a combination of techniques and it is the overall result that matters. This means that different media and channels can have completely different approaches to the problem, yet still deliver reliable data.