lvd Release Notes

2 Installation Information

3 Known Problems and Workarounds

 



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       1.  Introduction

       The Live Video Digitizer (LVD) provides real-time frame grab
       capability for IRIS-4D/GT and IRIS-4D/GTX workstations.  The
       software option is a set of sample programs that demonstrate
       the features of the LVD frame grabber board.  To properly
       use the LVD demos, make sure that you've installed the
       standard set of demos that comes with your 4D1-5.2 system
       software.

       Note:  Your software package includes a Software License
              Agreement.  This software is provided to you solely
              under the terms and conditions of the Software
              License Agreement.  Please take a few moments to
              review the Agreement.

       This document contains the following chapters:

         1.  Introduction

         2.  Installation Information

         3.  Bug Fixes


       1.1  Release_Identification_Information

       Following is the release identification information for LVD:

       Software Option Product        Live Video Digitizer

       Version                        1.5.1
       System Software Requirements   IRIX 5.2 or later



       1.2  Online_Release_Notes

       After you install the online documentation for a product
       (the relnotes subsystem), you can view the release notes on
       your screen.

       If you have a graphics system, select ``Release Notes'' from
       the Tools submenu of the Toolchest. This displays the
       grelnotes(1) graphical browser for the online release notes.

       Refer to the grelnotes(1) man page for information on
       options to this command.

       If you do not have a graphics system, you can use the
       relnotes command.  Refer to the relnotes(1) man page for











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       accessing the online release notes.

       1.3  Product_Support

       Silicon Graphics, Inc., provides a comprehensive product
       support maintenance program for its products.

       If you are in North America and would like support for your
       Silicon Graphics-supported products, contact the Technical
       Assistance Center at
       1-800-800-4SGI.

       If you are outside North America, contact the Silicon
       Graphics subsidiary or authorized distributor in your
       country.












































 



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       2.  Installation_Information

       This chapter lists supplemental information to the IRIS
       Software Installation Guide.  The information listed here is
       product-specific; use it with the Installation Guide to
       install this product.

       2.1  Live_Video_Digitizer_Subsystems

       The Live Video Digitizer (LVD) software includes these
       subsystems:

       lvd.man.relnotes    Live Video Digitizer release notes

       lvd.sw.demos        Live Video Digitizer demo executables

       lvd.sw.src          Live Video Digitizer demo source code


       2.2  LVD_Subsystem_Disk_Space_Requirements

       This section lists the subsystems (and their sizes) of the
       LVD software.

       If you are installing this software for the first time, the
       subsystems marked ``default'' are the ones that are
       installed if you use the ``go'' menu item.  To install a
       different set of subsystems, use the ``install,''
       ``remove,'' ``keep,'' and ``step'' commands in inst to
       customize the list of subsystems to be installed, then
       select the ``go'' menu item.

       Note:  The listed subsystem sizes are approximate. Refer to
              the IRIS Software Installation Guide for information
              on finding exact sizes.

       Subsystem Name                Subsystem Size
                                     (512-byte blocks)

       lvd.man.relnotes (default)            10
       lvd.sw.demos (default)               369

       lvd.sw.src (default)                 244



















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       2.3  Installation_Method

       All of the subsystems for the Live Video Digitizer can be
       installed using IRIX.  You do not need to use the miniroot.
       Refer to the IRIS Software Installation Guide for complete
       installation instructions.





















































 



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       3.  Known_Problems_and_Workarounds

       In IRIX system software releases 3.3.3 and 4.0.1, a timing
       bug existed in the graphics microcode that controls frame
       transfers from the Live Video Digitizer.  The bug causes
       frame transfers to abort early, whenever a certain time
       limit is exceeded.  For standard NTSC-sized transfers, the
       bug did not manifest itself.  If you performed PAL-sized
       transfers, or enabled alpha blending, the transfers aborted
       early.  This problem will be corrected in future versions of
       the IRIX operating system.  The only workaround in these
       circumstances is to transfer fewer pixels per frame.