FS2 v2.1r1
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traditionally called “HD,” “DTV,” or “708” captioning. The data formatting and encoding
for 708 captions is very different from the data contained in 608 (SD) captioning,
reflecting the added features and capabilities available with the CEA-708 standard.
When the Caption Translator is on, the FS2 Upconverter automatically translates
incoming line 21 captions to CEA-708 format and inserts the VANC packets into the
converted HD video stream. This is a complete translation from CEA-608 format to CEA-
708 format (including the embedded SD captions).
The FS2 Downconverters automatically intercept and reformat the SD caption data in the
incoming CEA-708 VANC packets, and output it on line 21 of the standard definition
outputs.
Input Scan and PSF
This parameter determines how the Deinterlacer handles interlaced vs. PsF inputs.
Normally, this control will only be used to indicate that a 1080PsF25 input is PsF and not
interlaced.
Auto
When Auto is selected, the system will look for clues in the source's SMPTE 352 (Payload
ID) data and respond accordingly. If there is no SMPTE 352 information, the system will
assume that 23.98/24 fps sources are PsF, and 25/29.97/30 fps sources are interlaced.
Progressive
When Progressive is selected, the system will assume that all sources are PsF (even if
there is SMPTE 352 data to the contrary).
Interlaced
When Interlaced is selected, the system will assume that all sources are interlaced (even if
there is SMPTE 352 data to the contrary)
19 Input Scan Format .
SD Line 21Closed
Caption Blanking
This parameter determines whether the FS2 blanks line 21 closed captioning data prior
to video processing of an SD 525i video input. (Line 21 normally occurs at the top of the
raster in the overscan area of video, so the presence of captioning data or blanking does
not interfere with the visible SD or Upconverted video.)
20 SD Line 21 Blanking
Blank
In Blank mode, the FS2 copies and remembers the contents of SD line 21 and then blanks
those lines before transformation to ensure captioning data does not get included in the
transformed video. If the output video is SD 525i, the copied caption information gets
reinserted on line 21 of the output. If the output video is Upconverted and parameter 18
Caption Xlator is On, the copied caption gets translated into an HD caption and inserted
into the transformed output (and if the caption translator is Off, the HD output does not
contain caption data). This is the setting to use if the SD input includes a caption and you
want to retain it at the output (parameter 18 Caption Xlator must be On), or you want to
blank it at the output (18 Caption Xlator must be Off ).
Pass
In Pass mode, the FS2 does not blank line 21 of the SD video input and passes the
unaltered video to the Video Processor for transformation. This is the setting to use if
there is no captioning data present on line 21 of a 525i video input.
Auto (default)
Deinterlacer detects input source payload ID data and sets the
processing format accordingly.
Progressive
Assumes all input sources are progressive.
Interlaced
Assumes all input sources are interlaced.
USO
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