Altera Video and Image Processing Suite User Manual
Page 62
Format
Description
Picture height (in lines)
• The IP core counts the total number of lines per frame or
field, and the number of lines in the active picture
period.
• One full frame or field of video is required before the IP
core can determine the height.
Interlaced/Progressive
• The IP core detects whether the incoming video is
interlaced or progressive.
• If it is interlaced, separate height values are stored for
both fields.
• One full frame or field of video and a line from a second
frame or field are required before the IP core can
determine whether the source is interlaced or progres‐
sive.
Standard
• The IP core provides the contents of the
vid_std
bus via
the Standard register.
• When connected to the
rx_std
signal of an SDI IP core,
for example, these values can be used to report the
standard (SD, HD, or 3G) of the incoming video.
UG-VIPSUITE
2015.05.04
Clocked Video Input Format Detection
4-3
Clocked Video Interface IP Cores
Altera Corporation
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