test(VideoManager): address Windows sink review follow-up

[alireza787b]

Description

This is the post-merge review cleanup requested on #14728.

It does not change runtime behavior. It:

• clarifies why the D3D11 sink advertises only native GPU formats;
• removes asynchronous waits from synchronous caps assertions;
• removes an unused videotestsrc property; and
• narrows the Windows skip condition to D3D11-specific initialization failures.

The original CPU-frame fallback was reproduced and verified by the maintainer before #14728 was merged. This follow-up does not claim separate hardware-decoder coverage for 4:2:2 or 4:4:4 streams.

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change or feature
• Documentation update
• Refactoring (no functional changes)
• CI/Build changes
• Other

Testing

• Tested locally: reviewed the focused diff and ran git diff --check
• Added/updated unit tests

Exact PR head: 37fc2884e83d733d15efcf839b40175a9cda0cd6.

• Exact-head QGC CI passed Linux x64/arm64 release builds, unit and integration tests, ASan/UBSan, coverage thresholds, Windows, macOS, iOS, Android, Docker, custom-plugin, and CodeQL checks. Linux evidence: run 30596390058
• Codecov reports every modified coverable line covered
• Tested with simulator (not applicable)
• Tested with hardware (no new runtime behavior)

Platforms Tested

• Linux (QGC exact-head CI)
• Windows: the underlying fallback in fix(VideoManager): preserve Windows software frames #14728 was manually verified before merge
• macOS (QGC exact-head CI build)
• Android (QGC exact-head CI build)
• iOS (QGC exact-head CI build)

Flight Stacks Tested

Not applicable; this only refines GStreamer sink tests and comments.

Screenshots

Not applicable; there is no UI change.

Checklist

• I have read the Contribution Guidelines
• I have read the Code of Conduct
• My code follows the project coding standards
• I have updated tests to capture the reviewed behavior
• New and existing unit and integration tests pass at the exact head in QGC CI

Related Issues

Follow-up to #14728.

---

By submitting this pull request, I confirm that my contribution is made under the terms of the project's dual license (Apache 2.0 and GPL v3).

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 32.65%. Comparing base (f29efd3) to head (37fc288).
⚠️ Report is 236 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #14752      +/-   ##
==========================================
+ Coverage   25.47%   32.65%   +7.18%     
==========================================
  Files         769      784      +15     
  Lines       65912    67564    +1652     
  Branches    30495    31292     +797     
==========================================
+ Hits        16788    22061    +5273     
+ Misses      37285    30629    -6656     
- Partials    11839    14874    +3035     

Flag	Coverage Δ
unittests	32.65% <ø> (+7.18%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.
see 477 files with indirect coverage changes

---

Continue to review full report in Codecov by Harness.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update ed09a05...37fc288. Read the comment docs.

🚀 New features to boost your workflow:

• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[github-actions]

Build Results

Platform Status

Platform	Status	Details
Linux	Passed	View
Windows	Passed	View
MacOS	Passed	View
Android	Passed	View

All builds passed.

Pre-commit

Check	Status	Details
pre-commit	Failed (non-blocking)	View

Pre-commit hooks: 0 passed, 0 failed, 0 skipped.

Test Results

linux-coverage-integration: 37 passed, 0 skipped
linux-coverage-unit: 117 passed, 0 skipped
linux-sanitizers-integration: 20 passed, 0 skipped
linux-sanitizers-unit: 117 passed, 0 skipped
Total: 291 passed, 0 skipped

Code Coverage

Coverage: 69.4%

No baseline available for comparison

Artifact Sizes

Artifact	Size
QGroundControl	221.80 MB
QGroundControl-aarch64	179.35 MB
QGroundControl-installer-AMD64	137.85 MB
QGroundControl-installer-AMD64-ARM64	80.35 MB
QGroundControl-installer-ARM64	109.10 MB
QGroundControl-linux	87.04 MB
QGroundControl-mac	87.04 MB
QGroundControl-x86_64	191.58 MB
No baseline available for comparison

---

_{Updated: 2026-07-31 02:06:37 UTC • Commit: 37fc288 • Triggered by: Windows}