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PC Computing: Gaming Megapac
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Gaming Megapac (PC Computing)(Ziff-Davis)(D56A)(1997).ISO
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indeo
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ivi_95nt.txt
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******************************************************************************
* *
* IVI_95NT.EXE should be used to install Indeo(R) video interactive onto a *
* system running Windows* 95 or Windows NT* *
* *
* IVI_95NT.EXE is an executable file that contains the installation *
* program for the 32-bit version of Indeo video interactive. The program *
* also installs the newest 32-bit versions of Indeo video R3.2 and Indeo *
* video Raw. *
* *
* If you plan to install Indeo video onto a system running Windows 3.X, *
* download and install the file IVI16.EXE in order to install *
* the 16-bit versions of Indeo video. *
* *
******************************************************************************
Indeo(R) Video Interactive R4.1 -- Version 4.11.15.84
Microsoft Windows 95 and Windows NT
June 28, 1996
This setup program installs the 32-bit Indeo video drivers on Windows 95
or Windows NT systems.
ivi_95nt.txt Topics:
------------------
o Indeo Video Driver Versions
o Installation
o Additional Documentation
o Known Operating Characteristics of R4.1
o Software Requirements
o Minimum System Configuration
o Technical Support and Updates
Indeo Video Drivers:
--------------------
Indeo(R) video interactive R4.1 - V4.11.15.84 [filename: ir41_32.dll]
Indeo(R) video R3.2 - V3.24.15.03 [filename: ir32_32.dll]
Indeo(R) video Raw YVU9 - V1.10.15.11 [filename: iyvu9_32.dll]
Improvement** in V4.11.15.84 over V4.11.15.62:
1. The codec has been optimized for MMX(tm) technology. MMX technology is a major
enhancement to the Intel Architecture that will make mainstream PCs richer
multimedia and communications platforms. This enhancement includes 57 new
instructions that will allow Intel processors to deliver better performance for
multimedia and communications computation. Later in 1996 Intel will be adding
MMX technology enhancements to new versions of the Pentium¿ processor, and when
PC's using the new processors are introduced Indeo video interactive will benefit
from the performance improvements offered by MMX technology. For more information
on MMX technology visit Intel on the World Wide Web at
http://www.intel.com/pc-supp/multimed/mmx/.
2. The codec uses less memory. The actual amount of memory used by the codec when
playing a given file will vary depending on how that file was compressed, but the
new codec will use anywhere from 25% to 40% less memory to open and play a file
than the previous version.
3. Files load and start playing faster. The actual time it takes to open and begin
playing a file on a given PC will vary based on system performance features such
as CPU speed, RAM, L2 cache, etc., but on average the new codec will open and start
playing files 20% to 40% faster than the previous version.
4. Playback performance has improved. A number of optimizations have been made to speed
up playback of video files, especially in 16-bit (65,000-color) display mode.
5. Enhancements have been made to the offline encoder, and a new compression mode
called the Quick Compressor has been added to make compressing video files much
faster and easier. More information on the Quick Compressor is available in the
release notes (RELEASE.DOC)
6. The new version of Indeo video interactive offers enhanced playback quality, and new
features designed to enhance the interactivity and video quality of Indeo video in
multimedia applications.
7. An online help menu is now available in the encoder's Configure dialog. This will
help guide the user through the various options available for encoding video clips.
8. Improvements have been made to the offline encoder that will allow compressed video
clips to display better quality at lower data rates.
9. A number of enhancements have been made to the ICM programming interface. These
changes will give developers creating multimedia playback applications improved
control over the codec's interactive features, especially transparency and playback
scalability.
** complete details on these improvements are available in RELEASE.DOC, included in
IVI_95NT.EXE or on the website at http://www.intel.com/pc-supp/multimed/indeo
Improvement in V3.24.15.03 over V3.24.15.02:
1. Compresses video properly.
Improvement in V3.24.15.02 over V3.24.15.01:
1. Provides correct IF09 data for DirectDraw drivers.
Installation:
-------------
Windows 95:
The setup program installs the Indeo video drivers in the Windows 95
System subdirectory (e.g. \windows\system). Setup puts the
following entries in the system.ini file:
[drivers32]
VIDC.IV41=ir41_32.dll
VIDC.IV32=ir32_32.dll
VIDC.IV31=ir32_32.dll
VIDC.YVU9=iyvu9_32.dll
Setup also places the following entries in the HKEY_LOCAL_MACHINE
section of the system registry:
System\CurrentControlSet\control\MediaResources\icm\vidc.IV41
System\CurrentControlSet\control\MediaResources\icm\vidc.IV32
System\CurrentControlSet\control\MediaResources\icm\vidc.IV31
System\CurrentControlSet\control\MediaResources\icm\vidc.YVU9
Windows NT:
The setup program installs the Indeo video drivers in the Windows NT
System32 subdirectory (e.g. \windows\system32). Setup puts the
following entries into the HKEY_LOCAL_MACHINE section of the
system registry:
Software\Microsoft\Windows NT\CurrentVersion\Drivers\VIDC.IV41
Software\Microsoft\Windows NT\CurrentVersion\Drivers\VIDC.IV32
Software\Microsoft\Windows NT\CurrentVersion\Drivers\VIDC.YVU9
Software\Microsoft\Windows NT\CurrentVersion\drivers.desc\IR41_32.DLL
Software\Microsoft\Windows NT\CurrentVersion\drivers.desc\IR32_32.DLL
Software\Microsoft\Windows NT\CurrentVersion\drivers.desc\IYVU9_32.DLL
Documentation, Technical Support, and Updates:
----------------------------------------------
Documentation, technical information, and any future updates to Indeo
video interactive will be posted on the following electronic forums:
World Wide Web http://www.intel.com/pc-supp/multimed/indeo
Internet ftp://ftp.intel.com/pub/IAL/multimedia
For technical assistance with Indeo video technology, send an
electronic mail message to developer_support@intel.com.
Known Operating Characteristics:
--------------------------------
These are the known operating characteristics of
Indeo video interactive R4.1 only:
o Can not use MCIAVI to access interactive features
In order to access the new interactive features and capabilities
introduced by Indeo video interactive within the existing Video For Windows
architecture, the ICM interface must be used. VfW does not allow
access to the ICM via the MCIAVI interface. As a result, an interactive
application must provide the MCIAVI functionality for decoding such as
avi file I/O, sound play and synchronization, and keyframe management.
Linear applications, such as those presently using Indeo Video R3.2,
can use the MCIAVI interface and obtain the image quality and the
automatic scalability capability of Indeo video interactive.
o Does not load on 386 machines
In order to provide a high quality image with good playback performance,
the recommended minimum system configuration for Indeo video interactive
is a 486DX2/66. The Indeo video interactive codec is implemented with
instructions specific to 486 or later processors. If the codec detects a
386 processor or less, then the codec is not loaded. It is recommended
that applications check the processor type and notify the 386 user that
they have insufficient resources to play the video portions of the
application.
o Playing Multiple clips
Multiple clips will play simultaneously; however, playing clips with
different frame rates disables the scalability mechanism. During
concurrent playback, both clips will play all frames and all bands.
Scalability will be re-enabled as soon as all active clips have the
same frame rate.
o Transparency Playback and Dropped Frames
1. For software vendors using Transparency and drawing directly to
the on-screen frame buffer:
If the application requires all frames to be returned, such as in
an application that uses transparency to an on-screen buffer, then
the codec should be used without ICM_DRAW_BEGIN and ICM_DRAW_END
calls surrounding the DECOMPRESS messages for the motion playback.
This ensures that no frames will be dropped so that the
non-transparent section is overlayed on the background.
These DRAW messages cause the decoder to begin scaling back and
dropping frames when the required decode time is not available.
The ICM_DRAW_BEGIN message puts the the decoder in "Normal
Playback" mode, and the ICM_DRAW_END message takes it out and puts
it back into "Stepping Mode" (The default playback mode of the
decoder), where all frames are returned.
2. For software vendors using Transparency and drawing to an
off-screen frame buffer:
The application needs to recognize the codec's "Don't Draw"
message and not flip screen buffer pages in this case.
o IF09 and Transparency / Local Decode
IF09 is a data format which can be output by the R4.1 codec. It is
similar to the Raw YVU9 format. IF09 is used as input to DCI enabled
hardware that handles color space conversion.
1. The IF09 output format supported by Indeo video interactive does
not directly support the Transparency and Local Decode features
of the algorithm, however they can be used together with
application support.
2. IF09 and Transparency: The entire IF09 buffer is filled by image
data regardless of Transparency (or local decode). Thus,
transparent pixels ARE written in this buffer. To use
transparency, the calling application must request to have the
transparency mask exposed, and combine it with the IF09 buffer at
color conversion time.
3. IF09 and Local Decode: The calling application has 2 ways of
getting full local decode support with the decoder. It may
manually clip view rectangle from the IF09 buffer, as it color
converts it to the screen, or it may request the transparency
mask, which is clipped to the view rect, and treat local decode
as transparency. In either case, the Decode rectangle will
still correctly tell the decoder the portions of video to decode.
o New Indeo Video Interactive Palette
The Indeo video interactive palette has changed relative
to the Indeo Video R3.2 palette. Any graphics or video files
created based on the Indeo Video R3.x palette will need to be
re-done to work with the Indeo video interactive palette.
o Frame Sizes
In increments of 4, the minimum supported frame size is 32x32
(pixels); and the maximum supported frame size is 8192x8192
(pixels).
o Concatenating files using an editing application
When concatenating multiple V4.1 encoded files using an editing
application such as Adobe Premiere, you must insure that all the
clips are the same size and were encoded with the same features
in the Advanced Dialog box (bi-dir, transparency, view port,
scalability, ...). Combining files with different parameters
will have undetermined behavior.
Software Requirements:
-----------------------
o Microsoft Windows 95 or Windows NT
Minimum Hardware Configuration:
------------------------------
486DX2/66 Mhz CPU
8 MB system RAM
CD ROM drive(300KB/sec)
SVGA display (VESA compliant)
8-bit Sound board
For best frame rate performance, configure the graphics card for 8-bit
color mode. For best image quality, use 24-bit color mode.
Off-line encoding is CPU-intensive, i.e. the faster the CPU the faster the
compression time.
_____________________________________________________________________
* Other brands and names are the property of their respective owners.