UI: Add obs_frontend_get_current_record_output_path()

Returns the current path of the record output.

UI/api-interface.cpp

@@ -618,6 +618,13 @@ struct OBSStudioAPI : obs_frontend_callbacks {
 					  Q_ARG(OBSSource, OBSSource(source)));
 	}
 
+	char *obs_frontend_get_current_record_output_path(void) override
+	{
+		const char *recordOutputPath = main->GetCurrentOutputPath();
+
+		return bstrdup(recordOutputPath);
+	}
+
 	void on_load(obs_data_t *settings) override
 	{
 		for (size_t i = saveCallbacks.size(); i > 0; i--) {

UI/obs-frontend-api/obs-frontend-api.cpp

@@ -546,3 +546,10 @@ void obs_frontend_open_source_filters(obs_source_t *source)
 	if (callbacks_valid())
 		c->obs_frontend_open_source_filters(source);
 }
+
+char *obs_frontend_get_current_record_output_path(void)
+{
+	return !!callbacks_valid()
+		       ? c->obs_frontend_get_current_record_output_path()
+		       : nullptr;
+}

UI/obs-frontend-api/obs-frontend-api.h

@@ -220,6 +220,8 @@ EXPORT void obs_frontend_reset_video(void);
 EXPORT void obs_frontend_open_source_properties(obs_source_t *source);
 EXPORT void obs_frontend_open_source_filters(obs_source_t *source);
 
+EXPORT char *obs_frontend_get_current_record_output_path(void);
+
 /* ------------------------------------------------------------------------- */
 
 #ifdef __cplusplus

UI/obs-frontend-api/obs-frontend-internal.hpp

@@ -138,6 +138,8 @@ struct obs_frontend_callbacks {
 	virtual void
 	obs_frontend_open_source_properties(obs_source_t *source) = 0;
 	virtual void obs_frontend_open_source_filters(obs_source_t *source) = 0;
+
+	virtual char *obs_frontend_get_current_record_output_path(void) = 0;
 };
 
 EXPORT void