When some video cards use a bob deinterlacing algorithm, video that the Video Mixer Renderer 9 (VMR9) has rendered may not play back correctly. Sometimes, the user may notice high CPU utilization when this problem occurs. Also, the program that is playing back the content may quit unexpectedly (crash).
This problem occurs because presentation times are not correctly assigned to samples when the video card deinterlaces content by using the bob deinterlacing algorithm.
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next release that contains this hotfix.
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:Note
In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone
tab in the Date and Time tool in Control Panel.
Date Time Version Size File name
31-Aug-2004 19:33 6.5.2600.2508 1,287,680 Quartz.dll
Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section.
Bob deinterlacing is a technique for displaying interlaced video. In bob mode, each field is displayed individually. The gaps between scan lines are filled by using interpolation.
For more information, see the DirectX Software Development Kit.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
Description of the standard terminology that is used to describe Microsoft software updates