[opendtv] Re: Carriage of various extra types of data in digital TV
- From: "Hughes Gary-DJWV76" <ghughes@xxxxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Wed, 7 May 2008 11:46:05 -0400
> On Behalf Of Tom Barry
> Sent: Friday, May 02, 2008 7:02 PM
>
> Surely they must at least support the various new options of
> closed caption info. No?
>
North American CC data is generally carried in a User Data header
(MPEG-2) or SEI (H.264). Either way, from the transport persepective it
is part of the video stream.
The DVB approach is usually to carry CC data in a private data stream on
its own PID.
Shirley
Gary Hughes
Distinguished Member, Technical Staff
Advanced Engineering
Motorola On Demand Video, MA34
80 Central St.
Boxborough, MA 01719
Email: ghughes@xxxxxxxxxxxx
Office: 978 266 7269
Mobile: 978 339 3615
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