Subsampled data, Color plane sequencer parameter settings, Subsampled data -4 – Altera Video and Image Processing Suite User Manual
Page 138: Color plane sequencer parameter settings -4
Subsampled Data
In addition to fully sampled color patterns, the Color Plane Sequencer IP core also supports 4:2:2
subsampled data.
For the Color Plane Sequencer IP core to support 4:2:2 subsampled data, you can configure the IP core
with two color patterns in sequence, so that subsampled planes can be specified individually.
When splitting subsampled planes from fully-sampled planes, the Avalon-ST Video control packet for the
subsampled video data packet can have its width value halved, so that the subsampled planes can be
processed by other IP cores as if fully sampled. This halving can be applied to control packets on port
dout0
and port
dout1
, or control packets on port
dout0
only.
Color Plane Sequencer Parameter Settings
Table 9-1: Color Plane Sequencer Parameter Settings
Parameter
Value
Description
Bits per pixel per color plane
4-20, Default = 8
Select the number of bits per pixel (per color
plane).
Two pixels per port
On or Off
Turn on to enable two pixels on each port.
• Turn on this parameter if you want to
treat Cb and Cr separately because it
requires two pixels worth of data.
• Alternatively, you can turn off this
parameter and use channel names C, Y
instead of Cb, Y, Cr, Y.
din0: Color planes in sequence
1, 2, 3, 4
Select the number of color planes in sequence
for input port
din0
.
din0: Color planes in parallel
1, 2, 3, 4
Select the number of color planes in parallel
for input port
din0
.
din1: Port enabled
On or Off
Turn on to enable input port
din1
.
din1: Color planes in sequence
1, 2, 3, 4
Select the number of color planes in sequence
for input port
din1
.
din1: Color planes in parallel
1, 2, 3, 4
Select the number of color planes in parallel
for input port
din1
.
dout0: Non-image packet source • din 0
• din 1
• din 0 and din 1
Select the source port(s) that are enabled for
non-image packets for output port
dout0
.
dout0: Color planes in sequence 1, 2, 3, 4
Select the number of color planes in sequence
for input port
dout0
.
9-4
Subsampled Data
UG-VIPSUITE
2015.05.04
Altera Corporation
Color Plane Sequencer IP Core