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- Intel Indeo(tm) Video R3.2 Update -- V3.24.01.01
- Microsoft Video for Windows 1.1e
- April 14, 1995
-
- This software update is provided to enhance your existing Indeo(R)
- Video drivers to the latest video technology for compressing, editing
- and playing back video on your Intel microprocessor-based desktop
- computer, using Microsoft's Video for Windows* Version 1.1e.
-
- Indeo Video technology gives you the capability to capture and
- compress video in a single step using Intel's Smart Video Recorder Pro
- card. It also allows you to offline compress and play back video
- using only software on your computer.
-
- The ISVR Pro works with camcorders, VCRs and laser disks to capture
- Indeo Video. It immediately compresses NTSC or PAL format files at
- 320x240, 240x180, and 160x120 pixel resolutions at up to 30 frames
- per second.
-
- In addition, the built-in scalability of Indeo technology,
- automatically adjusts the playback frame rate depending on your
- computer's performance capabilities. This allows you to play Indeo
- video files on any Intel Pentium(R) or Intel486(TM) processor-based
- computer.
-
- Readme.txt Topics:
- ------------------
- * Improvements
- * Indeo Video Drivers
- * Differences from Microsoft's VfW 1.1e Update
- * System.ini Entries
- * AVI File Editors
- * Active Palette and DCI Support
- * Known Operating Characteristics
- * Software Requirements
- * Optimum System Recomendation
- * Technical Support and Updates
-
- Improvements:
- -------------
- Indeo Video R3.2 is an update to Indeo Video R3.1 and Video for Windows
- V1.1. It provides:
-
- * Support for the Display Control Interface (DCI).
- * Support for active palette.
- * Improved visual quality. There is significantly more foreground
- and background detail for most sequences, particularly at 15fps
- with data rates of 135KB/sec or higher.
- * Improved video playback performance at low data rates.
- * Improved 16-bit image quality and playback performance.
- * Improved audio playback at low data rates.
- * Compression and decompression of images up to 640x480 size in
- 4-pixel increments. Note: 640x480x10 video with a 240KB/sec transfer
- rate, has been measured to play back at close to 10 frames per second.
- * Improved software encoder performance (2 to 5 sec/frame on a Pentium
- processor system).
- * Faster initialization.
-
- Improvements in V3.24.01.01 over V3.23.01.01:
-
- 1. Diamond Viper Pro cards will no longer fail during DCI profiling.
- 2. The offline compressor is better at reaching targeted data rates.
-
- Improvements in V3.23.01.01 over V3.22.01.44:
-
- 1. Less memory is allocated during playback.
- 2. More tolerant of errors in the video bit stream. Not as likely to
- GPF if a bit stream error is encountered during playback.
- 3. Subsampling changed to minimize color bleeding.
-
- Improvements in V3.22.01.44 over v3.22.01.43:
-
- 1. Fixes a potential problem with the floating point library not being
- exited correctly while compressing a file.
-
- Improvements in V3.22.01.43 over V3.22.01.30:
-
- 1. Fixes color shift when using Active Palette support.
- 2. Fixes sustained palette flash when video is placed in the background.
- 3. Correctly rejects AVI files with odd size images.
- 4. Fixed a possible GPF when insufficient memory was available.
- 5. The new Raw driver displays correctly under Adobe Premiere*.
-
- Indeo Video Drivers:
- --------------------
- Indeo(TM) Video R3.2 -- V3.24.01.01 incorporates the new Indeo
- Video R3.2 software codec that produces
- the highest quality video for software
- playback on Intel microprocessor based
- desktop computers.
- [filename: ir32.dll]
-
- Indeo(TM) Video Raw -- V1.10.1.6 incorporates the raw/YVU9 codec.
- [filename: iyvu9.dll]
-
- Indeo(TM) Video R2.1 -- V2.17.003 incorporates a decompressor only.
- It plays back files created with the older
- R2.1 codec.
- [filename: ir21.dll]
-
- Differences from Microsoft's VfW 1.1e Update:
- ---------------------------------------------
- The Setup utility used to install this update is a modified version of
- the Setup utility Microsoft provides with their runtime package. It is
- possible to make further changes to this program. Microsoft used to
- supply a Setup Toolkit with V3.1 of the Windows SDK. The Setup Toolkit
- can now be obtained from Microsoft's Download Service (MSDL) at
- 206-936-6735. Look for a file called CP0982.EXE in the C/C++ section.
-
- All of the Intel and non-Intel codecs are installed by this update.
- Listed below are the differences between this update and the one
- supplied by Microsoft:
-
- 1. Installs R3.2 V3.24.01.01 driver rather than V3.22.1.43.
- 2. The Raw driver (iyvu9.dll) is updated.
- 3. A file called ir30.dll is installed. See the following section
- for details.
- 4. The R2.1 driver is renamed to ir21.dll.
- 5. The readme.txt and copyrite.txt files are added. This
- readme.txt file may be deleted prior to distribution.
- 6. The files in this update do not all fit on one 3.5" diskette.
-
- System.ini Entries:
- -------------------
- The Setup program installs the Indeo video drivers along with the
- latest Video for Windows runtime. It places the following entries
- in the system.ini file for the Indeo video drivers:
-
- [drivers]
- VIDC.RT21=ir21.dll
- VIDC.YVU9=iyvu9.dll
- VIDC.IV31=ir32.dll
- VIDC.IV32=ir32.dll
-
- Previously, the recommended system.ini entries for Indeo video R3.1
- looked as follows:
-
- [drivers]
- VIDC.RT21=indeov.drv
- VIDC.YVU9=indeov.drv
- VIDC.IV31=indeov.drv
-
- Indeov.drv was an "umbrella" driver that used a text file called
- indeo.ini to point to the various Indeo video drivers. The indeo.ini
- file had the following entries:
-
- [GLOBAL]
- DRIVERS=IV31,RT21,YVU9
- [IV31]
- DEC=ir30.dll
- [RT21]
- DEC=ir21_r.dll
- [YVU9]
- DEC=ir21_r.dll
-
- Indeov.drv and indeo.ini are no longer used and may be deleted if desired.
- However, older applications, which install the Indeo video drivers, may still
- use indeov.drv and indeo.ini. Since the name of the latest Indeo video driver
- has changed from ir30.dll to ir32.dll, this would prevent IV31 files from
- accessing the latest driver. To avoid this problem, an exact copy of the
- latest ir32.dll file, named ir30.dll, is also installed by this setup program.
- It is hoped the ir30.dll file will not be used. But if another setup program
- should change the system.ini entries to point to indeov.drv, then the correct
- driver will still be accessed through ir30.dll. In the future, this precaution
- should not need to be taken.
-
- AVI File Editors:
- -----------------
- This is a recommendation for developers of AVI file editors.
- To avoid unnecessary recompression, it is recommended the IV31 and
- IV32 video formats be treated as the same video format. This speeds
- up editing operations and improves video quality. When a video editor
- saves an edited AVI file, the video formats of the source video frames
- are compared to the video format chosen for the target file.
- Typically, any frames not in the target format are recompressed. If
- a clip contains a mixture of IV31 and IV32 frames, and the output
- format is IV32, it is not necessary to recompress the IV31 frames.
- The Indeo video R3.2 codec will play back both video formats.
-
- Active Palette and DCI Support:
- -------------------------------
- Video for Windows now allows applications to properly handle an external
- palette for playback on 8-bit displays. Previously, the Indeo video driver
- could only dither to its own internal palette. Video for Windows would
- further dither the video to a requested external palette. This caused
- external palettes to be dithered twice which reduced video quality.
-
- This problem was fixed by Video for Windows 1.1d along with an updated Indeo
- video driver. Indeo video is now able to decompress directly to an external
- palette. Indeo video can be requested to use an external palette with either
- of the following MCI (Media Control Interface) commands:
-
- SETVIDEO <alias> PALETTE HANDLE TO <palette_handle>
- REALIZE <alias> BACKGROUND
-
- These commands and the MCI Interface are described in Microsoft's Video for
- Windows 1.1 Developer's Kit.
-
- DCI provides for faster and smoother playback of video on DCI-enabled
- graphics cards.
-
- Three components are needed to enable DCI support:
-
- 1. Video for Windows V1.1d or newer
- 2. The Indeo video v3.22.01.043 driver or newer
- 3. DCI-enabled graphics card and drivers
-
- The first two components are provided with this update. Contact your graphics
- card vendor to obtain DCI-enabled drivers for your graphics card.
-
- Known Operating Characteristics:
- --------------------------------
- 1. The new Indeo Video R3.2 driver can play back AVI files
- compressed using the older R3.0 and R3.1 drivers. However, AVI
- files created by the R3.2 software encoder cannot be played back
- using the Indeo video R3.0 or R3.1 drivers. Microsoft's Media
- Player will report the error "Video not available, cannot find
- 'vids.iv32' decompressor."
-
- 2. The R2.1 driver does not display a setup dialog box from
- the Control Panel.
-
- 3. Digital Video Arts, Ltd. has an Indeo video R3.2 driver that
- supports hardware playback. Call 215-576-7920 to inquire about
- their NewWorld Operating Environment.
-
- 4. The Setup utility could fail unexpectedly at the end of installation.
- If this occurs, it is usually due to low memory conditions. Close all
- other applications before running the installation.
-
- Software Requirements:
- -----------------------
- * Video for Windows V1.1d or newer
- * Windows 3.1 or newer
-
- Optimum System Recomendation:
- -----------------------------
- For the highest image quality and playback, the following system
- requirements are recommended:
-
- * Intel Pentium processor
- * System RAM: 12+ MB
- * PCI bus graphics controller with DCI-enabled drivers
- * SCSI or Enhanced IDE hard drive
-
- For best frame rate performance, put the graphics card in 8-bit
- color mode. For best image quality, use 24-bit color mode.
-
- Technical Support and Updates:
- ------------------------------
- For technical assistance, post a message on the IntelArch forum
- of CompuServe in Indeo(R) Video library #9.
-
- As new Indeo video drivers are released, they will be made available
- on CompuServe INTELARCH forum and Intel's Application Support BBS at
- 916-356-3600. Updates are also available on Internet at
- ftp://ftp.intel.com/pub/IAL/multimedia and at
- http://www.intel.com/IAL/index.html.
- _____________________________________________________________________
- * Other brands and names are the property of their respective owners.
-