Ericsson AVP 1000 1RU, Справочное руководство, Страница: 425 / 508

Technical Specification
EN/LZT 790 0023/1 R16A
B-9
Closed Captions
Closed Caption data and any user data embedded in the SDI/HD-SDI according to
SMPTE 334, is extracted and inserted into the picture user data of the video stream
in accordance with ATSC A/72 part 1.
Information regarding the closed captions is carried in PSI as per ATSC A/72 part 2.
Time Code
Time code is extracted from HANC of the incoming video and carried in the
Transport Stream adaptation layer as described in Annex E of ETSI TS 101 154
(AU_information).
OP-47
Teletext subtitles can be extracted from ANC in accordance with OP-47 and carried
in a Teletext PID.
AFD
As part of the ANC Data, Active Format Description codes can also be transmitted.
These codes provide information to video devices about where in the coded picture
the active video is. The codes are defined by ETSI TS 101 154 V1.7.1 Annex B,
ATSC A/53 Part 4 and SMPTE 2016-1-2007.
Active Format Descriptor (AFD) uses three bits of video index to define the video
format. This information is encoded into user data and can then be used by a
Decoder for wide-screen switching.
HDR/WSS Signalling
HDR/WSS codes can be signalled in accordance with SDR (BT.709), UHD SDR
(BT.2020), HDR HLG10 (HDR in VUI), HDR HLG10 (SDR in VUI), HDR PQ10.
Generic ANC
Up to 2 Mbps of generic data can be extracted from ANC of the incoming video and
encapsulated in accordance with SMPTE 2038 (Carriage of Ancillary Data Packets
in an MPEG-2 Transport Stream).
VBI Data
The extraction of VBI types can be enabled or disabled individually. The video line
from which the VBI is extracted can also be configured. The default is set according
to the relevant standard for the VBI type.
VBI Lines
Up to 8 VBI lines per field can be extracted. Unless otherwise stated, all VBI data
are formed into one VBI Transport Stream packet that conforms to ETSI EN 301 775
or SCTE 127.