|
Additional Information: |
NOTE: This driver will now automatically extract to your hard drive. It will only extract under Windows 95, Windows 98, and Windows NT. The extraction process will NOT work with any other operating system.
Released Version
Version 1.00 First Release
Summary of Changes
Where: <n.nn> Diskette version (For example, 1.00 means Version 1.00)
(New) New function or enhancement
(Fix) Correction to existing function
(Restriction) Remaining restriction
v1.00
-(New) Initial release.
Installation instructions
When you install the Windows NT 4.0 MPEG Feature Program, you must also install the following device drivers/utility program:
- Windows NT Mwave/DSP Feature Diskette V2.42
- Windows NT 4.0 Display Driver V1.00
- Windows NT ThinkPad Feature Program V3.50 or higher
Note:
To support the suspend/resume feature using MPEG driver, ThinkPad Feature program must be installed as the prerequisite software.
- If you install the PC Card Director for the hot plug features, it is recommended to install V1.01 or later version to get the better video/audio performance.
Installing MPEG Feature Program
Following are the steps to be carried out to install the driver from the installation program.
1. Extract the drivers onto the hard drive.
2. Run Start --> Settings --> Control Panel -> Multimedia.
3. Multimedia Properties window shows up. Click on Devices tab. Click on Add... button. A window titled Add shows up. It shows a list of drivers. Select Unlisted or Updated Driver.
4. Click OK or hit the Enter key. The Install Driver window shows up. Enter C:\DRIVERS\WNT\MPEG in the window. Click on OK or hit the Enter key. The window titled Add Unlisted or Updated Driver will show the following device :
(MCI)IBM MPEG-2 Decoder
Click on OK or hit the Enter key.
5. System does some processing to install the driver. It takes a few seconds and then the window titled Installation panel shows up. This panel shows the version number of the driver. Click on OK or hit the Enter key. The window disappears and you are back in the Control Panel window again. The installation procedure is over.
How to verify the installation
Please carry out the following steps for verifying that installation has taken place correctly:
1. Click on Start --> Settings --> Control Panel.
2. Double-click on Devices. A window titled Devices shows up. Look for an entry by name mpegcd1 under the device column in this window. This entry corresponding to mpegcd1 should show the Status as Started and Startup as System. Click on Close or hit the Enter key.
3. Click on Start -> Programs -> Accessories -> Multimedia -> MediaPlayer.
4. Click the mouse on the Device menu button on this window. You should be able to see an entry corresponding to MPEG driver. The entry would be having the name IBM MPEG-2 Decoder.
5. Click File and click Open... and select any MPEG1 or MPEG2-HHR file that want to play. After few seconds, MPEG video clip window should come on the screen. Click play button to start playing back he MPEG file you opened.
6. MPEG file should be playing with sound/video.
Helpful hints how to use the MPEG driver on Windows NT 4.0
When you use the MPEG driver on Windows NT 4.0, the following items should be considered since some limitations exist in the driver.
1. Any multimedia player application provided by a third party or a custom player application created for Windows NT is not guaranteed to work with this driver. Only the "Media Player" application (mplay32.exe) is tested and verified.
2. MPEG-2 Main Profile/Main Level is not supported. MPEG-2 HHR(Half Height Resolution) with Transport Stream media is the only supported MPEG-2 feature with this current release.
3. Running more than one video application which shares the same video hardware is not supported. For example, while an MPEG file is in play, the video capture application will not work. Run one or the other at a time.
4. When IBM MPEG-2 Decoder is selected on the Device menu on the Media Player, opening the another Media Player for the Sound/MIDI/Video for Windows/CD Audio is on hold. If it requires using other devices concurrently with MPEG device on Media Player, select these devices first before selecting the IBM MPEG-2 Decoder.
5. Displaying the video window to the external CRT or to TV(NTSC/PAL) is supported. When the video is displayed on these screen, following is the limitation.
External CRT
Setting the video mode to the following is not supported:
- 1024x768/256 colors/75 Hz Refresh Rate
- 1024x768/64K colors/75 Hz refresh Rate
- 1280x1024/256 colors
- 16 colors (640x480, 800x600, 1024x768)
External TV (NTSC or PAL)
- Set the scan mode to "overscan" when Enhanced Video is enabled using the ThinkPad Feature Program. Setting to "underscan" mode shows the partial clipped image on the video window.
6. To get better audio/video performance when playing MPEG-2 files, please consider the following:
Playing MPEG-2 is sensitive to the available CPU time in the system. If you run applications that require a large amount of CPU resources, it will affect the audio/video latency for the MPEG playback. So, try to avoid running other applications as much as possible during the playback of the MPEG-2 files.
Another known limitation occurs when using the PC Card Director, version 1.00. This affects the audio/video latency because of its CPU overhead. This problem is fixed by the PC Card Director, version 1.01 which is available in BBS or IBM web site. If you use the version 1.00 of the PC Card Director, please do the following as a work around:
- Go to Windows NT Control Panel
- Double click Devices and search for PC Card PnP Filter in the device list.
- Select PC Card PnP Filter and select Stop.
- Select Startup... and change the startup type from Automatic to Disable.
- Click OK and close Devices under Control Panel.
By disabling the PC Card Director, MPEG audio/video latency problem will be resolved. It is recommended that you will install the latest PC Card Director when you need the PCMCIA hot plug feature.
|
- mptp4wnt.exe