Fix Windows Media Source bug with Packaged Apps #2609
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…not work when running app as packaged.
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Pull Request Overview
This PR fixes a bug on Windows where media playback fails in packaged mode by ensuring that the MediaElement correctly retrieves package resources.
- Added a null and whitespace check on ResourceMediaSource.Path before constructing the file path.
- Introduced two new helper classes (FileSystemUtils and AppInfoUtils) to retrieve and normalize the app package file path on Windows.
Reviewed Changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| MediaManager.windows.cs | Adds a Path check and uses PlatformGetFullAppPackageFilePath to correctly obtain a media file’s URI. |
| FileSystemUtils.windows.cs | Introduces file path normalization and retrieval methods to support packaged app scenarios. |
| AppInfoUtils.windows.cs | Implements app info utilities, including packaged app detection and version retrieval. |
2 tasks
VladislavAntonyuk
approved these changes
Jul 3, 2025
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Description of Change
This fixes a bug in Windows where running an app in packaged mode results in media element not finding package resources and failing to playback Media Source from resource directory.
Linked Issues
PR Checklist
approved(bug) orChampioned(feature/proposal)mainat time of PRAdditional information
To test this change run sample app in packaged and unpackaged mode and load local resource from drop down menu in sample app. It fixes an issue where running app as packaged results in failed media playback when choosing local resource from menu.
I added two Microsoft internal classes and I used null forgiveness operator. I know that is not allowed and would love it if someone could tell me if I should just rewrite the internals or just do the minimum to have it compile. Currently I only made the adjustments to let the app compile. I am happy to fix the use of null operator but I wanted feedback before modifying MS internals.