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All lines – composite in video path processing – Grass Valley 8964DEC v.1.1.0 User Manual

Page 21

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8964DEC/-FS — Instruction Manual

21

Configuration

The line numbers for each category above are defined in

Table 3

for both

525 and 625 line rates on the 8964DEC module.

Note

The categories may not match the line definition as specified in the applicable
standard.

Line pairs in the P_Active line category can be reserved for carrying data
by configuring Data Line Pairs with local or remote controls. Refer to

Table 4

for a listing of the Data Line Pairs lines that are available with each

setting.

All Lines – Composite In Video Path Processing

The incoming video composite signal path for each channel can be pro-
cessed before decoding. These processing functions affect all lines of video
at once, both active picture lines and VBI lines.

The following processing functions are available for the video composite
input signals:

AGC and ACC on or off – the Auto Gain Control (AGC) and Auto
Chroma Control (ACC) are set to default to the off condition (

Enable AGC

and

ACC

checkboxes not checked). This is the recommended state and

provides the following controls for video and chroma gain:

Input Video Gain – adjust the input video gain in percent relative to
100% (100% = 1 V p-p). AGC operation is based on sync tip.

Table 3. Line Numbers for 8964DEC Line Categories

Line Categories

Label

525

625

Start

End

Start

End

F_Active

25 (F1)

288 (F2)

263 (F1)
525 (F2)

29 (F1)

342 (F2)

310 (F1)
623 (F2)

P_Active

21 (F1)

284 (F2)

24 (F1)

287 (F2)

24 (F1)

337 (F2)

28 (F1)

341 (F2)

CVBI

10 (F1)

273 (F2)

20 (F1)

283 (F2)

6 (F1)

319 (F2)

23 (F1)

336 (F2)

FVBI

1 (F1)

264 (F2)

9 (F1)

272 (F2)

624 (F1)
311 (F2)

5 (F1)

318 (F2)

Table 4. Lines Reserved for Carrying Data

525 Line

Selection

Data Line Pairs

Reserved

625 Line

Selection

Data Line Pairs

Reserved

None

None

None

None

21/284

21/284

24/337

24/337

22/285

21/284 – 22/285

25/338

24/337 – 25/338

23/286

21/284 – 23/286

26/339

24/337 – 26/339

24/287

21/284 – 24/287

27/340

24/337 – 27/340

28/341

24/337 – 28/341