IPSR-VIDEO Altera, IPSR-VIDEO Datasheet - Page 132

• Manufacturer Part Number: IPSR-VIDEO
• Description: RENEWAL Of IPS-VIDEO
• Manufacturer: Altera
• Series: IP Suitesr

Specifications of IPSR-VIDEO

• Software Application: IP CORE, SUITES
• Supported Families: Arria GX, Cyclone II, HardCopy II, Stratix II
• Features: Common Avalon Streaming (Avalon-St) Interface And Avalon-St Video Protocol
• Core Architecture: FPGA
• Core Sub-architecture: Arria, Cyclone, Stratix
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: na

5–52
Gamma Corrector
Table 5–22. Gamma Corrector Avalon-ST Video Protocol Parameters
Interlacer
Video and Image Processing Suite User Guide
Frame Width
Frame Height
Interlaced /
Progressive
Bits per Color Sample
Color Pattern
Parameter
Table 5–21. Avalon-ST Video Parameters (Part 2 of 2)
The Gamma Corrector MegaCore function provides a look-up table (LUT) accessed
through an Avalon-MM slave port. The gamma values can be entered in the LUT by
external hardware using this interface.
For information about using Avalon-MM slave interfaces for run-time control in the
Video and Image Processing Suite, refer to
page
Table 7–14 on page
Avalon-MM interface signals, refer to
When dealing with image data with N bits per pixel per color plane, the address space
of the Avalon-MM slave port spans 2
Registers 2 to 2
data with a value x will be mapped to whatever value is in the LUT at address x + 2.
The Gamma Corrector MegaCore function can process streams of pixel data of the
types shown in
The Interlacer MegaCore function converts progressive video to interlaced video. The
Interlacer generates an interlaced stream by dropping half the lines of each
progressive input frame. The Interlacer drops odd and even lines in successive order
to produce an alternating sequence of F0 and F1 fields. The output field rate is
consequently equal to the input frame rate.
The Interlacer MegaCore function handles changing input resolutions by reading the
content of Avalon-ST Video control packets. The Interlacer supports incoming streams
where the height of the progressive input frames is an odd value. In such a case, the
height of the output F0 fields are one line higher than the height of the output F1
fields.
Bits per Color Sample
Color Pattern
Read from control packets at run time.
Read from control packets at run time.
Either.
Number of bits per color sample selected in the parameter editor.
One, two or three channels in sequence or parallel. For example, if three channels
in sequence is selected where ,
4–17. For details of the control register maps, refer to
Parameter
N
Table
+ 1 are the look-up values for the gamma correction function. Image
7–12, and
5–22.
Specified in parameter editor.
Up to four color planes in parallel, with up to three color planes in
sequence.
Table 7–15 on page
and
N
Table 6–14 on page
can be any color plane:
+ 2 registers where each register is N bits wide.
Value
“Avalon-MM Slave Interfaces” on
7–12. For information about the
Value
6–17.
Table 7–13 on page
Chapter 5: Functional Descriptions
January 2011 Altera Corporation
Gamma Corrector
α
7–12,
β
γ