Cobalt Digital Inc 9922-FS, Руководство по эксплуатации продукта, Страница: 16 / 118

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9922-FS Functional Description
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9922-FS PRODUCT MANUAL 9922FS-OM (V1.5)
Key/Fill Insertion
Option
+KEYER
provides for three of the card SDI video inputs to be used as
respective program video, key, and fill inputs. This function provides chroma
keying using the
KEY VID IN
signal. The
FILL VID IN
signal provides the fill
video that is inserted in the area “cleared out” by the key. The keying user
interface displays key and fill timing relative to the card output video,
allowing timing offset to be adjusted such that key and fill can be properly
framed. (The option and its host card does not provide timing offset control of
the key/fill video; offset must be provided by external frame sync cards or
devices controlling the key and fill video feed.) The program video input
when using keying accommodates either an SDI or an analog video input; key
and fill inputs are SDI only.
Alpha threshold keyer modes allow full-color key/fill from cost-effective
generic sources such as a standard PC (with appropriate HDMI-to-SDI output
conversion) hosting simple .bmp, .jpeg, or .png graphic files. In these modes,
a common key/fill SDI input provides both the key and fill input.
EAS Text Crawl Generation
Option
+EAS
provides for
automated keying Emergency Alert System (EAS) text crawls in the active
program video output. The function receives its text stream via a card serial
data input. The EAS crawl start can be set to trigger upon receiving the serial
data message, or be set to use a GPI to trigger start of the EAS crawl.
Embedded in the received serial data are commands which set the message
severity to be shown by the keyed crawl (severity is correlated to
user-specified text color and background color for the crawl). User controls
allow control of the crawl speed and repeat of the crawl burn-in (if desired).
Refer to +TTS Manual Supplement OPT-SW-PHXEAS-MS for detailed
information and installation/setup instructions. This supplement is furnished
with the option.
Color Corrector
Option
+COLOR
converts the YCbCr SDI input video to the 4:4:4 RGB color
space (where the color correction is applied), and then back to YCbCr SDI on
the output. Controls are available to adjust each RGB level independently for
both white levels (gain) and black levels (offset). Gamma can also be
independently adjusted for each RGB channels. Various controls can be
ganged to provide adjustment for all three color channels simultaneously.