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This page created for architecture overview and roadmap discussions.


Additional Resources:

https://www.adobe.com/content/dam/acom/en/devnet/video/pdfs/introduction_to_closed_captions.pdf

Text Track Capability Support/Test Matrix

Hardware

AAMP

(Sky/Whirlpool)

VTT / TTML

AAMP

(Comcast/US)

608/708

AAMP

(Peacock/Sling)

608/708

ATSC

608/708


AAMP (Verdi)

Teletext

(Character and

Image based variants)

Llama (AmLogic)

pending, required

required?

required?

n/a

required?

PlatCo (AmLogic)

n/a?

HiSense has called VTT captions

out as a product requirement.

pending, required

pending, required

RDKTV-243

pending, requiredn/a
XiOne Uk / De / Italy (Realtek)

working

n/arequired?n/a

Potentially required

(for muxed streams)

DELIA-46624

But no current pull.

XiOne US (Realtek0not requiredstatus?status?n/an/a
Xi (Broadcom)not required

working

working

n/an/a





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