Altera視頻相關(guān)VIP更新詳細(xì)介紹.

1、 2011 Altera Corporation - Public Altera Video Image Processing (VIP) Solution Overview 2011 Altera Corporation - Public 2 Altera Video Framework nBuilding block IP cores to speed up development (VIP suite) nOpen, low-overhead interface standard to mix-and-match custom or off-the shelf IP nFormat co

2、nversion reference designs that showcase silicon capability, provide a starting point for design nSystem Level Tools and design methodology nVariety of development boards/kits for rapid design prototyping 2011 Altera Corporation - Public 3 Video Image Processing (VIP) Suite BT 656 Avalon ST video Sc

3、aler Deinterlacer Chroma resampler Alpha blending mixer Color plane sequencer Frame buffer Image clipper Gamma correction Test pattern generator 2D FIR filter 2D median filter Color space converter Avalon ST video BT 656 Half a dozen hardware verified video processing reference designs using these f

4、unctions Available TODAY! Switch Control Sync Frame Reader Scaler II v11.0 Deinterlacer II 2011 Altera Corporation - Public 4 Open, Low-overhead Interface Standard: Avalon Streaming (ST) Video Open interface protocol for streaming video data paths and memory-mapped control paths 2011 Altera Corporat

5、ion - Public 5 Stratix Reference Designs V1 1080p HD Video Processing SD/HD/3G-SDI CLIPCSC CVI YCbCr to RGB Motion adaptive Polyphase scaler 12x12 taps, 4:4:4 mode Deinterlacer 4:4:4 Frame rate conversion Scaler Frame buffer DDR2 HP memory SD/HD/3G-SDI CLIPCSC CVI YCbCr to RGB WeaveNearest Neighbor

6、Deinterlacer 4:4:4 Frame rate conversion Scaler TPG Frame buffer Mixer CVO DVI Avalon-ST videoClocked video Nios II processor Run-time configuration through Nios II processor Res: 480I to 1080P60 Interface: SDI, DVI Device: S2GX90 2011 Altera Corporation - Public 6 Stratix Reference Designs V2 1080p

7、 HD Video Processing SD/HD/3G-SDI CLIPCVI Motion adaptive Polyphase scaler 6X6 taps, 4:4:4 mode Deinterlacer 4:2:2 Frame rate conversion SCL Frame buffer DDR2 HP memory CVO Avalon-ST videoClocked video Nios II Processor Run-time configuration through Nios II processor CRS 4:2:2 to 4:4:4 CRS 4:4:4 to

8、 4:2:2 Interlacer 4:2:2 Res.: 480i to 1080p SDI SD/HD/3G-SDI SD/HD/3G-SDI CLIPCVI Motion adaptive Polyphase scaler 6x6 taps, 4:4:4 mode Deinterlacer 4:2:2 Frame rate conversion SCL Frame buffer CVO CRS 4:2:2 to 4:4:4 CRS 4:4:4 to 4:2:2 Interlacer 4:2:2 SDI SD/HD/3G-SDI 2011 Altera Corporation - Publ

9、ic 7 Stratix Reference Designs V3 1080p HD Video Processing 2011 Altera Corporation - Public Processes input video in 4:2:2 format Reduced external memory bandwidth (4:4:4 in UDX3) Snoop Performance monitor Component Library based scaler (4:2:2) Reference Design: UDX4.0 2011 Altera Corporation - Pub

10、lic 9 Cyclone III Reference Design 480i SD Video Processing and Mixing 480i NTSC video mixing Bitec Quad Video card OC 12C master JTAG UART Bitec DVI I/O card OC 12C master Composite Input from Bitec Quad video card DVI Tx on Bitec video card Nios II System bus switch fabric Clocked video input Clip

11、per Color plane sequencer Chroma resampler Color Space converter Motion Adaptive deinterlacer ClipperScaler Frame buffer Alpha blending tool Clocked video output Test pattern generator High performance DDR2 memory controller System bus switch fabric 2011 Altera Corporation - Public 10 http:/ Cyclone

12、 III Reference Design 480p Pixels are collected from the current field and the three preceding it nThese pixels are assembled into two 33 groups of pixels and the minimum absolute difference (MAD) of the two groups is calculated nCompare the MAD value with the previous MAD -Either the new value is k

13、ept or a mean of the new and old value is used nDeinterlacer II -Supports 3:2 cadence detection and low-angle edge detection -Supports lower latency 2011 Altera Corporation - Public 18 VIP Function Details Scaler Choose the scaling algorithm number of taps/phases Select the input and output image si

14、zes Choose from a selection of pre-built filter functions or choose a custom function 2011 Altera Corporation - Public 19 VIP Function Details Scaler Polyphase Algorithm nData from multiple lines of the input image are assembled into line buffers one for each vertical tap nThese data are then fed in

15、to parallel multipliers, before summation and possible loss of precision nThe results are gathered into registers one for each horizontal tap nThese are again multiplied and summed before precision loss down to the output data bit width 2011 Altera Corporation - Public 20 VIP Function Details Scaler

16、 II Utilizes Fewer Resources nReduces area and improves performance -Compared to first-generation scaler nSupports 4:2:2 chroma data sampling rate -Further reduces area used nAlgorithm supports -Linear and polyphase with run-time coefficient load nNew core in HDL -More efficient in using resources 2

17、011 Altera Corporation - Public 21 VIP Function Details Alpha Blending Mixer Select the number of layers to be mixed The level of blending is controlled by the number of alpha bits (up to 8) Select the size of the image 2011 Altera Corporation - Public 22 VIP Function Details Generate a color bar te

18、st pattern 2011 Altera Corporation - Public 23 BT656 Avalon ST Video nThe Clocked Video Input MegaCore function converts from clocked video formats (such as BT656 and DVI) to Avalon-ST Video nIt strips the incoming clocked video of horizontal and vertical blanking, leaving only active picture data n

19、No conversion is done to the active picture data -The color plane information remains the same as in the clocked video format. 2011 Altera Corporation - Public 24 BT656 Avalon ST Video nThe Clocked Video Output MegaCore function converts from Avalon-ST Video to clocked video formats (such as BT656 a

20、nd DVI) nIt formats Avalon-ST Video into clocked video by inserting horizontal and vertical blanking and generating horizontal and vertical sync information nNo conversion is done to the active picture data -The color plane information remains the same as in the Avalon-ST Video format. 2011 Altera C

21、orporation - Public 25 Color Plane Sequencing Cb Y Cr 8-bit, parallel, 4:4:4 Deinterlacer (MA) Chroma Resampler Polyphase Scaler Color Plane Sequencer CbYCrY 8-bit, sequence, 4:2:2 Cb Y Cr Y 8-bit, parallel, 4:2:2 G R B 8-bit, parallel, 4:4:4 Color Space Converter G R B 8-bit, parallel, 4:4:4 G R B

22、8-bit, parallel, 4:4:4 2011 Altera Corporation - Public 26 Color Plane Sequencing CbYCrY Cb Y Cr Y 2011 Altera Corporation - Public 27 Frame Buffer 2011 Altera Corporation - Public 28 Run-time Control of the Video Chain nBuild video signal chains that can be updated on- the-fly without changing the

23、HDL or bit-stream -Using the streaming interface protocol: Avalon ST Video -Using an embedded processor 2011 Altera Corporation - Public 29 Run-time Control of the Video Chain nAvalon-ST Video protocol is a packet-oriented way to send video and control data -First packet contains a frame of video da

24、ta -Second packet contains control information that applies to the subsequent video packet/frame Video function 1Video function 1 DATA VALID SOP EOP READY Avalon ST Examples of Avalon-ST Video Control Packets 2011 Altera Corporation - Public 30 Run-time Control of the Video Chain nMost video functions permit run-time control of some aspects of their behavior, using a common type of Avalon- MM slave interface nEach slave interface provides access to a set of control registers