Altera Video and Image Processing Suite User Manual
Page 41
Parameter
Recommended Color Patterns
Bits per Color Sample
Parallel
Sequence
Y’CbCr
Y
Cb
Cr
Cr
Cb
Y
4:2:2 Y’CbCr
Cb Cr
Y
Y
Cr
Cb
Y
Y
Following these recommendations, ensures compatibility minimizing the need for color pattern
rearranging. These color patterns are designed to be compatible with common clocked video standards
where possible.
Note: If you must rearrange color patterns, use the Color Plane Sequencer IP core.
4:2:2 Mode Support
Some of the IP cores in the Video and Image Processing Suite do not support 4:2:2 mode. You can
parameterize the IP cores to 2 symbols in parallel or sequence to make them appear like 4:2:2.
The following IP cores do not support 4:2:2 mode:
• 2D FIR Filter
• Color Space Converter
Some IP cores use 2-pixel alignment of 4:2:2. These IP cores send pixels in “pairs” to get a complete “Y,
Cb and Cr”. The following IP cores use 2-pixel alignment:
• Alpha Blending Mixer
• Clipper
• Clipper II
• Gamma Corrector
Specifying Color Pattern Options
You can specify parameters in the parameter editor that allow you to describe a color pattern that has its
color planes entirely in sequence (one per cycle) or entirely in parallel (all in one cycle). You can select the
number of color planes per pixel, and whether the planes of the color pattern transmit in sequence or in
parallel.
Some of the IP cores' user interfaces provide controls allowing you to describe a color pattern that has
color plane samples in parallel with each other and in sequence such that it extends over multiple clock
cycles. You can select the number of color planes of the color pattern in parallel (number of rows of the
color pattern) and the number of color planes in sequence (number of columns of the color pattern).
2-14
Static Parameters of Video Data Packets
UG-VIPSUITE
2015.05.04
Altera Corporation
Interfaces