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Symptoms

This issue occurs when multiple video streams are playing at the same time in a DirectShow-based application that uses the enhanced video renderer (EVR) filter. When this issue occurs, the video seek bar is still progressing, but the rendering is paused.

Additionally, in the same scenario, the lower frame rate video playback affects the playback rate of the greater frame rate video.

Cause

The EVR calls the DwmSetPresentParameters function to tell Desktop Window Manager (DWM) what frame rate it should play. However, it doesn't work correctly in this scenario and causes the issue.

Hotfix information

Important If you install a language pack after you install this hotfix, you must reinstall this hotfix. Therefore, we recommend that you install any language packs that you need before you install this hotfix. For more information, see Add language packs to Windows.


A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that's described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there's a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section doesn't appear, submit a request to Microsoft Customer Service and Support to get the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that don't qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:

http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you don't see your language, it's because a hotfix isn't available for that language.

Prerequisites

There's no prerequisite to apply this hotfix.

Registry information

To use the hotfix in this package, you don't have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix doesn't replace a previously released hotfix.

File Information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). Be aware that dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time bias. The dates and times may also change when you perform certain operations on the files.

Notes

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version

    Product

    Milestone

    Service branch

    6.2.920 0.21xxx

    Windows 8 or Windows Server 2012

    RTM

    LDR

  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

x86 Windows 8

File name

File version

File size

Date

Time

Platform

Evr.dll

6.2.9200.21654

569,344

08-Oct-2015

19:44

x86

x64 Windows 8 and Windows Server 2012

File name

File version

File size

Date

Time

Platform

Evr.dll

6.2.9200.21654

684,544

08-Oct-2015

19:53

x64

Evr.dll

6.2.9200.21654

569,344

08-Oct-2015

19:44

x86


x86 Windows 8

File property

Value

File name

Update.mum

File version

Not applicable

File size

2,005

Date (UTC)

09-Oct-2015

Time (UTC)

20:53

Platform

Not applicable

File name

X86_ea82950ccf15798e92c5d64b1d461254_31bf3856ad364e35_6.2.9200.21654_none_49a3f10b49c2fb63.manifest

File version

Not applicable

File size

709

Date (UTC)

09-Oct-2015

Time (UTC)

20:53

Platform

Not applicable

File name

X86_microsoft-windows-enhancedvideorenderer_31bf3856ad364e35_6.2.9200.21654_none_8cf7831fb6f2a3bb.manifest

File version

Not applicable

File size

12,764

Date (UTC)

08-Oct-2015

Time (UTC)

20:05

Platform

Not applicable

x64 Windows 8 and Windows Server 2012

File property

Value

File name

Amd64_9653020c5895850e04f41446636c964d_31bf3856ad364e35_6.2.9200.21654_none_b12914e6b797ce1b.manifest

File version

Not applicable

File size

1,066

Date (UTC)

09-Oct-2015

Time (UTC)

20:53

Platform

Not applicable

File name

Amd64_c1e0ca8afd5bf80e9a76662ec93caef1_31bf3856ad364e35_6.2.9200.21654_none_6d06ec3d24b7e6df.manifest

File version

Not applicable

File size

713

Date (UTC)

09-Oct-2015

Time (UTC)

20:53

Platform

Not applicable

File name

Amd64_ea82950ccf15798e92c5d64b1d461254_31bf3856ad364e35_6.2.9200.21654_none_a5c28c8f02206c99.manifest

File version

Not applicable

File size

711

Date (UTC)

09-Oct-2015

Time (UTC)

20:53

Platform

Not applicable

File name

Amd64_microsoft-windows-enhancedvideorenderer_31bf3856ad364e35_6.2.9200.21654_none_e9161ea36f5014f1.manifest

File version

Not applicable

File size

12,768

Date (UTC)

08-Oct-2015

Time (UTC)

21:28

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

2,018

Date (UTC)

09-Oct-2015

Time (UTC)

20:53

Platform

Not applicable

File name

X86_microsoft-windows-enhancedvideorenderer_31bf3856ad364e35_6.2.9200.21654_none_8cf7831fb6f2a3bb.manifest

File version

Not applicable

File size

12,764

Date (UTC)

08-Oct-2015

Time (UTC)

20:05

Platform

Not applicable


Status

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

References

See the terminology that Microsoft uses to describe software updates.

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