FIX: The filter graph that uses the Windows Media ASF Writer filter may stop working when a sparse script stream is present (839522)
The information in this article applies to:
- Microsoft Windows Media Format 9 Series SDK
Important This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base: 256986 Description of the Microsoft Windows Registry SYMPTOMSSome applications that use the Windows Media ASF Writer Filter in the filter graph may stop capturing data when the profile contains a script stream.CAUSEThis problem occurs because the filter graph contains a script stream that has commands at infrequent intervals, also known as a sparse script stream. When the filter graph contains a sparse script stream, the audio pins and the video pins sleep while the data in the script stream catches up.RESOLUTIONA 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 following file is available for download from the Microsoft Download Center: Download the WindowsMedia9-KB839522-ENU.exe package now.
For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to Obtain Microsoft Support Files from Online Services
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The English version of this hotfix has the file attributes (or later) 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
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01-Apr-2004 14:35 9.0.0.3155 245,760 Qasf.dll
STATUSMicrosoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section of this article.
Modification Type: | Major | Last Reviewed: | 4/7/2006 |
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Keywords: | kbQFE KBHotfixServer kbdownload kbBug kbfix KB839522 kbAudDeveloper |
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