Blackmagic Design BDLKWEBPTRPRO Web Presenter HD

User Manual - Page 12

For BDLKWEBPTRPRO.

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Video Input
The 5 mini viewers at the top of the video input panel show the previous 6 seconds of
your live stream, each mini viewer represents 1.2 seconds of streaming time.
Below the mini viewers you can view detailed technical information about the video
input source connected to your Web Presenter’s SDI input.
Input Standard Displays the resolution and frame rate of the SDI video input.
Web Presenter supports up to 2160p60.
Colorimetry Shows the color space of the SDI video input. Web Presenter
supports Rec.601, Rec.709 and Rec.2020 color spaces.
SDI Ancillary Data Ancillary data is data carried in the SDI video input that is in
addition to video. This includes embedded audio, timecode and
closed captions. If your SDI input includes ancillary data then
‘Present’ will be displayed.
Timecode Displays the timecode from the SDI video input source.
Closed Captions If your SDI video input includes Closed Captions the format will be
displayed here. CEA-608 and CEA-708 formats are supported.
SMPTE 292 CRC This is an error checking function for SDI video. If your
Web Presenter detects a problem in the SDI video input it will
display an error. CRC errors are usually caused by a faulty SDI cable
or a cable that is too long.
Luminance Y Bits
and Chroma Bits
The indicators for ‘luminance y bits’ and ‘chroma bits’ show you
the activity of the SDI video input signal. Each letter represents the
state of one bit of the video signal.
X - An ‘X’ indicates a constantly changing bit.
L - A low bit.
H - A high bit.
SDI offsets are subtracted to make it easy to understand. For
example, all bits are low when video is black.
Generally, all 10 bits for your SDI video input will show ‘X’ to mean
all the bits on your video stream are changing constantly. If your
SDI input is 8 bit video, the two rightmost bits will always be ‘L’ as
they don’t have any data. If a bit stays ‘L’ or ‘H’ when you expect
itto be ‘X, this indicates a ‘stuck bit’ and could be the result of a
fault in the upstream video.
12Using the Monitor Output
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