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group	confluence_rdk_user, rdk_license_onlywiki

Additional Resources:

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

Text Track Capability Support/Test Matrix

Caption Type	Subtec	RDK CC Manager
VTT	supported	supported (with callback to app)
ttml	supported	not supported
CEA608	not yet supported	supported
CEA708	supported, not integrated	supported
Rendering	Wayland	DirectFB

Subtec WebVTT design

View file

Subtec WebVTT design.docxheight250

Architecture Diagrams

draw.io Diagram

border	true

diagramName	Proposal Subtec Integration
simpleViewer	false
width
links	auto
tbstyle	top
lbox	true
diagramWidth	961
revision	3

RDK CC Manager

draw.io Diagram

border	true

diagramName	RDK_CC_Manager
simpleViewer	false
width
links	auto
tbstyle	top
lbox	true
diagramWidth	1005
revision	3

AAMP Closed Captioning Support

Applications using AAMP have the support to use closed captioning. AAMP have in-band caption support for both CEA-608 and CEA-708 captions. Closed captioning can be achieved via two methods, using AAMP UVE APIs or using XREReceiver cc manager.

CC_Rendering_Support.pdf