Add manager clearing mechanism for linux cams

[seanavery]

Description

Currently, there is a bug in the Initialize() fn in camera_linux.go where the full driver list is appended causing the manager to fill up with duplicates. This is due to generating a new uuid on the fly for each driver record.

!!! The problem only occurs if calling Initialize after initial init run.

This issue does not occur id camera_darwin.go because the id is taken from avfoundation and is deterministic/unique for each driver.

Solution

Clear all video drivers during the Initialize call to prevent duplicates.

[seanavery]

Looks like I am having CI issues with pion/ice dependency. Not sure if this is related to the recent golang and dependency updates over the last couple of weeks.

Run make test
go: github.com/pion/ice/v2@v2.3.10: missing go.sum entry for go.mod file; to add it:
	go mod download github.com/pion/ice/v2
go: github.com/pion/ice/v2@v2.3.10: missing go.sum entry for go.mod file; to add it:
	go mod download github.com/pion/ice/v2
go vet 
go: github.com/pion/ice/v2@v2.3.10: missing go.sum entry for go.mod file; to add it:
	go mod download github.com/pion/ice/v2
make: *** [Makefile:7[6](https://github.com/pion/mediadevices/actions/runs/6537347218/job/17750984775?pr=532#step:5:7): test] Error 1
Error: Process completed with exit code 2.

It looks like CI failed for the last commit Bump minimum supported Go version to 1.19 .

[bazile-clyde]

Looks like I am having CI issues with pion/ice dependency. Not sure if this is related to the recent golang and dependency updates over the last couple of weeks.

Run make test
go: github.com/pion/ice/v2@v2.3.10: missing go.sum entry for go.mod file; to add it:
	go mod download github.com/pion/ice/v2
go: github.com/pion/ice/v2@v2.3.10: missing go.sum entry for go.mod file; to add it:
	go mod download github.com/pion/ice/v2
go vet 
go: github.com/pion/ice/v2@v2.3.10: missing go.sum entry for go.mod file; to add it:
	go mod download github.com/pion/ice/v2
make: *** [Makefile:7[6](https://github.com/pion/mediadevices/actions/runs/6537347218/job/17750984775?pr=532#step:5:7): test] Error 1
Error: Process completed with exit code 2.

It looks like CI failed for the last commit Bump minimum supported Go version to 1.19 .

Ah, I see. I added a fix for this issue #533. You can rebase this on top of that commit after it's pushed. Looks good so far.

[codecov]

Codecov Report

Attention: 7 lines in your changes are missing coverage. Please review.

Files	Coverage Δ
pkg/driver/camera/camera_linux.go	25.00% <50.00%> (+0.52%)	⬆️
pkg/driver/manager.go	56.00% <0.00%> (-4.87%)	⬇️

📢 Thoughts on this report? Let us know!.

[bazile-clyde]

@seanavery the master branch is passing, so feel free to rebase and force push.

[bazile-clyde]

LGTM!