Logging.md

Logging

To debug the application, it is useful to enable logging.

By default, the plugin outputs INFO level logs.
You can change the log level at runtime as follows:

Mediapipe.Unity.Logger.MinLogLevel = Logger.LogLevel.Debug;

Additionally, MediaPipe uses Google Logging Library(glog) internally.
You can configure it by setting flags.

Glog.Logtostderr = true; // when true, log will be output to `Editor.log` / `Player.log`
Glog.Minloglevel = 0; // output INFO logs
Glog.V = 3; // output more verbose logs

To enable those flags, call Glog.Initialize when the application starts.

Glog.Initialize("MediaPipeUnityPlugin");

☠️ Glog.Initialize can be called only once. The second call will crash your application or UnityEditor.

💡 If you look closely at Editor.log, you will notice the following warning log output.\

WARNING: Logging before InitGoogleLogging() is written to STDERR

To suppress it, you need to call Glog.Initialize.
However, without setting true to Glog.Logtostderr, glog won't output to Editor.log / Player.log.