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PPC Cost Threshold
PPC selection threshold after applying appropriate cost factors.
PPC MV Smooth Threshold
Level of smoothing of flow of MVs by comparison with neighbouring blocks.
PPC Selection Threshold
Used when separating MVs from noise.
BG/FG Balance Cost
BG MVs should be similar to neighbouring MVs. FG MVs are independent.
Huge Motion Distance Threshold
Threshold to limit confusion between genuine fast motion of an object or false matching with nearby
features that are similar.
Huge Motion Fallback Gain
Sensitivity coefficient for huge motion check.
MV Outlier Threshold
Validation error threshold for outlier MVs. Higher value means more likely to make a false MV between
features that are similar but unrelated.
4.6.
Time Code Settings
SP-14 processes time code information from SD formats on the analogue Composite, S-Video and
Component inputs. For 480i/NTSC lines 14/277 and 16/279 are scanned for time code (VITC). For
576i/PAL lines 19/282,21/284 are scanned for time code (VITC).
Also, time code information from SMPTE RP-188 ancillary data packets (DID = 0x60, SDID = 0x60) on
the 3GSDI inputs is processed. The packets are tagged internally with the associated incoming video
frame, then sent out again on the 3GSDI output (only) when that frame reaches the output. Note that
the frame-count part of the time is regenerated as per SMPTE 12M. Missing/corrupted input packets get
replaced and frame-count on the output will match the output format.
Time Code Output
SP-14 allows to specifically switch off that time code information.
TC Source Select
The time code source can be either “Current Input' or ''Free-Run”, i.e. internal generation.
When “Current Input' mode is selected, the output time code will track the input received from the
current video source. If that input consists of a series of clips with time code discontinuities at start of
each new clip, then the output will change to match. If the input player is paused at any stage, but still
outputting valid time code, then the SP-14 output time code will also be paused.
Note that the output tracking allows for differences that can arise as a result of either one of input or
output being in 'NTSC time'. If the video format is 23.98Hz, 29.97 or 59.94Hz, then the associated time
code will run slightly slower by comparison with real time, and is known as 'NTSC time'. If “Drop Frame
Mode” is enabled, then this is compensated for by skipping two frames every minute, so the error is kept
small.
If the currently selected video input channel hardware does not support time code (DVI, HDMI,
Analogue, and Test Pattern) then the TC source selection option will say 'N/A' (not available). If time
code input is supported by the video input channel hardware (CVBS 1/2, S-Video, 3G-SDI 1/2, and Y-
CbCr) but there is no time code being supplied from the video source, then the output will just free-run.
If time code is seen for a while at the input, and then it stops, the output will continue, but free-running
based on the last time code seen.
