FIX: The audio stream may be truncated when you use a custom DirectX Media Object (DMO) transform together with two-pass encoding in Windows Media Encoder 9 Series (907657)


The information in this article applies to:

  • Microsoft Windows Media Encoder 9 Series

SYMPTOMS

When you use a custom Microsoft DirectX Media Object (DMO) transform together with two-pass encoding in Microsoft Windows Media Encoder 9 Series, the audio stream may be truncated.

CAUSE

The pins on the filter graph are not correctly reset after the preprocessing pass is completed.

RESOLUTION

Hotfix information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, 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:

http://support.microsoft.com/contactus/?ws=support

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.

Download information

The following file is available for download from the Microsoft Download Center:

DownloadDownload the WindowsMedia9-KB907657-x86-INTL.exe package now.

For more 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

Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

File information

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
   -----------------------------------------------------
   07-Sep-2005  17:34  9.0.0.3327  472,576  Wmexfmwp.dll

WORKAROUND

To work around this problem, use one of the following methods:
  • Use one-pass encoding.
  • Use an uncompressed profile in Windows Media Encoder 9 Series when you apply the transform. Then, reencode the uncompressed file by using two-pass encoding.

STATUS

Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Modification Type:MinorLast Reviewed:6/2/2006
Keywords:kbfix kbQFE kbHotfixServer KB907657 kbAudDeveloper
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