Skip to content

[AI Task] [Tizen.Multimedia.Recorder] Make GetSupportedVideoResolutions cache thread-safe via Lazy<T> #7712

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
JoonghyunCho wants to merge 2 commits into
base: main
Choose a base branch
from
Open

[AI Task] [Tizen.Multimedia.Recorder] Make GetSupportedVideoResolutions cache thread-safe via Lazy<T> #7712

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
2c8104f
[Tizen.Multimedia.Recorder] Make GetSupportedVideoResolutions cache t…
Jun 21, 2026
2921234
Address review feedback
Jun 22, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
28 changes: 17 additions & 11 deletions src/Tizen.Multimedia.Recorder/Recorder/VideoRecorder.Capabilities.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,10 @@ namespace Tizen.Multimedia
public partial class VideoRecorder
{
private static IEnumerable<Size> _frontResolutions;
private static readonly object _frontLock = new object();

private static IEnumerable<Size> _rearResolutions;
private static readonly object _rearLock = new object();

private static IEnumerable<Size> GetVideoResolutions(NativeHandle handle)
{
Expand Down Expand Up @@ -75,19 +78,22 @@ public static IEnumerable<Size> GetSupportedVideoResolutions(CameraDevice device
{
ValidationUtil.ValidateEnum(typeof(CameraDevice), device, nameof(device));

if (device == CameraDevice.Front)
{
return _frontResolutions ?? (_frontResolutions = LoadVideoResolutions(CameraDevice.Front));
}

if (device == CameraDevice.Rear)
switch (device)
{
return _rearResolutions ?? (_rearResolutions = LoadVideoResolutions(CameraDevice.Rear));
case CameraDevice.Front:
lock (_frontLock)
{
return _frontResolutions ?? (_frontResolutions = LoadVideoResolutions(CameraDevice.Front));
}
case CameraDevice.Rear:
lock (_rearLock)
{
return _rearResolutions ?? (_rearResolutions = LoadVideoResolutions(CameraDevice.Rear));
}
default:
Debug.Fail($"No cache for {device}.");
return LoadVideoResolutions(device);
}
Comment on lines +81 to 96

@gemini-code-assist gemini-code-assist Bot Jun 21, 2026

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

high

Update the resolution retrieval logic to use a simple lock-based initialization. This ensures thread safety and guarantees that if LoadVideoResolutions throws a transient exception, the fields remain null so that subsequent calls can retry the initialization.

            switch (device)
            {
                case CameraDevice.Front:
                    lock (_frontLock)
                    {
                        return _frontResolutions ?? (_frontResolutions = LoadVideoResolutions(CameraDevice.Front));
                    }
                case CameraDevice.Rear:
                    lock (_rearLock)
                    {
                        return _rearResolutions ?? (_rearResolutions = LoadVideoResolutions(CameraDevice.Rear));
                    }
                default:
                    Debug.Fail($"No cache for {device}.");
                    return LoadVideoResolutions(device);
            }


Debug.Fail($"No cache for {device}.");

return LoadVideoResolutions(device);
}

/// <summary>
Expand Down
Loading