Xilinx UG4153 manual

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Table of contents for the manual

  • Page 1

    R H.264 Motion Estimation Engine v1.0 User Guide [optional] UG453 (v1.1) Ap ril 23, 2008 [opt ional] H.264 Motion Estimation Engine v1.0 User Guide UG453 (v1.1) Ap ril 23, 2008[...]

  • Page 2

    H.264 Motion Estimation Engine www .xilinx.com UG453 (v1.1) April 23, 2008 Xilinx is disclosing this user guide , manual, rel ease note, an d/ or specification (the “Documen tation”) to you so lely for u se in the de velopment of designs to operate with Xilinx hardw are de vices. Y ou may not re produce, distribu te, repub lish, download, displ[...]

  • Page 3

    UG453 (v1.1) Apr il 23, 2008 www .xilinx.com H.264 Motion Es timation Engine T able of Contents Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Schedule of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 4

    UG453 (v1.1) Apr il 23, 2008 www .xilinx.com H.264 Motion Es timation Engine Appendix: Supporting Information Input Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Directory Tree Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 5

    UG453 (v1.1) Apr il 23, 2008 www .xilinx.com H.264 Motion Es timation Engine Schedule of Figur es Chapter 1: Introduction Chapter 2: Installing the H.264 Moti on Estimation Engine Core Chapter 3: Designing with the H.264 Motion Estimation Engi ne Core Figure 3-1: H.264 Encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 6

    H.264 Motion Estimation Engine www .xilinx.com UG453 (v1.1) Apr il 23, 2008[...]

  • Page 7

    UG453 (v1.1) Apr il 23, 2008 www .xilinx.com H.264 Motion Es timation Engine Schedule of T ables Chapter 1: Introduction Chapter 2: Installing the H.264 Moti on Estimation Engine Core Chapter 3: Designing with the H.264 Motion Estimation Engi ne Core Chapter 4: Simulating the H. 264 Mo tion Estimation Engine Core Chapter 5: Verifying the System Tab[...]

  • Page 8

    H.264 Motion Estimation Engine www .xilinx.com UG453 (v1.1) Apr il 23, 2008[...]

  • Page 9

    H.264 Motion Estimation Engine www .xilinx.com 9 UG453 (v1.1) Apr il 23, 2008 R Pr eface About This Guide This document is intended to guide the user through all aspects of installation, demonstration, simulation, verification, an d general usage of the Motion Estimation Engine core. It should be read in conjunction with the Xilinx Motion Estimatio[...]

  • Page 10

    10 www .xilinx.com H.264 Motion Es timation Engine UG453 (v1.1) April 23, 2008 Pref ace: About This Guide R T ypographical The following typographical conventions are used in this document: Online Document The following conventions ar e used in this document: Con vention Meaning or Use Example Courier font Messages, prompts, and program files that [...]

  • Page 11

    H.264 Motion Estimation Engine www .xilinx.com 11 UG453 (v1.1) Apr il 23, 2008 Con v entions R Red text Cross-r eference link to a location in another document See Figur e 2-5 in the V irtex-II Platform FPGA User Guide. Blue, underlined text Hyperlink to a website (URL) Go to http://www .xilinx.com for the latest speed files. Con vention Meaning or[...]

  • Page 12

    12 www .xilinx.com H.264 Motion Es timation Engine UG453 (v1.1) April 23, 2008 Pref ace: About This Guide R[...]

  • Page 13

    H.264 Motion Estimation Engine www .xilinx.com 13 UG453 (v1.1) Apr il 23, 2008 R Chapter 1 Intr oduction This user guide is required r eading for t he engineer using or consid ering using the Xi linx® Motion Estimation Engine core. The release of this pr oduct is given in ZIP file form. About the Core The Xilinx Motion Estimation Engine core accep[...]

  • Page 14

    14 www .xilinx.com H.264 Motion Es timation Engine UG453 (v1.1) April 23, 2008 Chapter 1: Introduct ion R Feedbac k Xilinx welcomes comments and suggestions abou t the Motion Est imation Engine cor e and the accompanying documentation. For comments or suggestions about the Motion Estimation Engine core, s ubmit a W ebCase from www .xilinx.com/suppo[...]

  • Page 15

    H.264 Motion Estimation Engine www .xilinx.com 15 UG453 (v1.1) Apr il 23, 2008 R Chapter 2 Installing the H.264 Motion Estimation Engine Cor e This chapter provides instructions for installi ng the H. 264 Motion Estimation Engine core. The Motion Estimation Engine fixed netlist is provided under th e Xilinx LogiCORE™ Site License Agreement, which[...]

  • Page 16

    16 www .xilinx.com H.264 Motion Es timation Engine UG453 (v1.1) April 23, 2008 Chapter 2: Installing the H.264 Motion Estimation Engine Core R 4. Allow the extractor utility you use to overwrite all exi sting files and maintain the directory structur e defined in the ar chive. See “ Appendix , “Supporting Information” ” for an illustration [...]

  • Page 17

    H.264 Motion Estimation Engine www .xilinx.com 17 UG453 (v1.1) Apr il 23, 2008 R Chapter 3 Designing with the H.264 Motion Estimation Engine Cor e This chapter describes how to include a Moti on Estimation Engine core into the next hierarchy of system ar chitecture. VHDL T emplate Files T o help the user design the cor e into his system, the releas[...]

  • Page 18

    18 www .xilinx.com H.264 Motion Es timation Engine UG453 (v1.1) April 23, 2008 Chapter 3: Designing with the H.264 Motion Est imation Engine Core R Motion est imation requires a definit ion of a search region and a se arch scheme to find th e best match (motion vector) within a search r e gion. Ra te-Distortion th eory also take s into consideratio[...]

  • Page 19

    H.264 Motion Estimation Engine www .xilinx.com 19 UG453 (v1.1) Apr il 23, 2008 Motion E stimation in the H.264 En coder R X-Ref Target - Figure 3-2 Figure 3-2: Motion Estimation Engine Bloc k Diagram FULL P E L Motion Estim ation Search Sliding Window Controller (112 x128 ) External Memory Controller Variable Block Size Decision External Mem ory Fr[...]

  • Page 20

    20 www .xilinx.com H.264 Motion Es timation Engine UG453 (v1.1) April 23, 2008 Chapter 3: Designing with the H.264 Motion Est imation Engine Core R[...]

  • Page 21

    H.264 Motion Estimation Engine www .xilinx.com 21 UG453 (v1.1) Apr il 22, 2008 R Chapter 4 Simulating the H. 264 Motion Estimation Engine Cor e This chapter describes a test bench ar chit ecture that was created in the ModelSim environment for simulation of the Motion Estimation Engine cor e. It does not describe the verification platform. The simu[...]

  • Page 22

    22 www .xilinx.com H.264 Motion Es timation Engine UG453 (v1.1) April 22, 2008 Chapter 4: Simulating the H. 2 64 Motio n Estimation Engine Core R 4. T estbench source file: /HDL/LowCost_MotionEstimation/MotionEstimation/Testbench/ MotionEstimation_TB.vhd Running the T est Bench T o run the test bench: 1. Double-click on the vsim_gui.bat file. This [...]

  • Page 23

    H.264 Motion Estimation Engine www .xilinx.com 23 UG453 (v1.1) Apr il 23, 2008 R Chapter 5 V erifying the System This chapter describes the verification envir o nment delivered with the Motion Estimation Engine core. Ultimately , the system is verified by using long regr ession tests with several differ ent r esolution input sequences. The outp ut [...]

  • Page 24

    24 www .xilinx.com H.264 Motion Es timation Engine UG453 (v1.1) April 23, 2008 Chapter 5: V erifying the System R Running the V erification T ests There ar e five tests that can be run by the user . Each test has varying characteristics , including varying video forma ts, parameter settin gs, etc. A description of the tests is given in the Appendix[...]

  • Page 25

    H.264 Motion Estimation Engine www .xilinx.com 25 UG453 (v1.1) Apr il 23, 2008 V erification Notes R The command line in the batch script invokes the following pr ocesses in this or der: 1. A DOS window is spawned. 2. A Perl script ( MotionEstimation_Verification.pl ) is called, which sets up the requir ed test(s) in order with the appr opriate par[...]

  • Page 26

    26 www .xilinx.com H.264 Motion Es timation Engine UG453 (v1.1) April 23, 2008 Chapter 5: V erifying the System R[...]

  • Page 27

    H.264 Motion Estimation Engine www .xilinx.com 27 UG453 (v1.1) Apr il 23, 2008 R Appendix Supporting Information Input Sequences The files provided as video input source files ar e: InputSequencescity_4cif_30city_4cif_30.hdr InputSequencescity_4cif_30city_4cif_30.yuv InputSequencesfootball_cif_30football_cif_30.hdr InputSequencesfootball[...]

  • Page 28

    28 www .xilinx.com H.264 Motion Es timation Engine UG453 (v1.1) April 23, 2008 R References 1. ITU-T/ISO/IEC, Advanced V ideo Coding for Generic Audio V isual Services , H.264 03/2005. X-Ref Target - Figure A-1 Figure A-1: Directory T ree Struct ure[...]