Cobalt-digital COMPASS 9223 Dual-Channel 3G_HD_SD MPEG-4 Encoder Manuel d'utilisateur télécharger pdf (Page 35)

35 9223-OM (V2.0)

Advanced Tab – VBI/Ancillary Data Insertion

The 9223 can extract the following data types from the video input and insert them in the

compressed video output:

• Closed Captioning

• Active Format Description (AFD)

Closed Captioning

The Closed Captioning controls are only displayed if Field/Frame Rate in the Basic Tab –

Video Configuration is set to NTSC. The appearance of this control is also a function of the

Input Resolution and Input Source parameters, as depicted below.

The Closed Captioning controls are as follows:

• Enable CC: check this box to enable Closed-Captioning insertion. Closed Captions are

inserted in the video elementary stream, as per ATSC A/72. Both CEA-608 and

CEA-708 captions are supported.

• CC Source: this controls where the encoder extracts closed captions from. As depicted

below, this field may or may not be editable, depending on the input resolution and input

source. The options are:

o CEA-608 Line 21: this option can only be used for SD inputs. The encoder will

extract all the CEA-608 information from both fields of Line 21, if present.

o SMPTE-334 VANC: this option can only be used for SDI inputs. The encoder

will expect closed-captioning information in the VANC. Both CEA-608 and

CEA-708 modes are supported (and automatically detected).

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Cobalt-digital COMPASS 9223 Dual-Channel 3G_HD_SD MPEG-4 Encoder Manuel d'utilisateur Page 35