diff --git a/UI/obs-app.cpp b/UI/obs-app.cpp
index 83d0a2ec3..25722473c 100644
--- a/UI/obs-app.cpp
+++ b/UI/obs-app.cpp
@@ -1657,6 +1657,119 @@ string GenerateSpecifiedFilename(const char *extension, bool noSpace,
 	return string(filename);
 }
 
+static void FindBestFilename(string &strPath, bool noSpace)
+{
+	int num = 2;
+
+	if (!os_file_exists(strPath.c_str()))
+		return;
+
+	const char *ext = strrchr(strPath.c_str(), '.');
+	if (!ext)
+		return;
+
+	int extStart = int(ext - strPath.c_str());
+	for (;;) {
+		string testPath = strPath;
+		string numStr;
+
+		numStr = noSpace ? "_" : " (";
+		numStr += to_string(num++);
+		if (!noSpace)
+			numStr += ")";
+
+		testPath.insert(extStart, numStr);
+
+		if (!os_file_exists(testPath.c_str())) {
+			strPath = testPath;
+			break;
+		}
+	}
+}
+
+static void ensure_directory_exists(string &path)
+{
+	replace(path.begin(), path.end(), '\\', '/');
+
+	size_t last = path.rfind('/');
+	if (last == string::npos)
+		return;
+
+	string directory = path.substr(0, last);
+	os_mkdirs(directory.c_str());
+}
+
+static void remove_reserved_file_characters(string &s)
+{
+	replace(s.begin(), s.end(), '\\', '/');
+	replace(s.begin(), s.end(), '*', '_');
+	replace(s.begin(), s.end(), '?', '_');
+	replace(s.begin(), s.end(), '"', '_');
+	replace(s.begin(), s.end(), '|', '_');
+	replace(s.begin(), s.end(), ':', '_');
+	replace(s.begin(), s.end(), '>', '_');
+	replace(s.begin(), s.end(), '<', '_');
+}
+
+string GetFormatString(const char *format, const char *prefix,
+		       const char *suffix)
+{
+	string f;
+
+	if (prefix && *prefix) {
+		f += prefix;
+		if (f.back() != ' ')
+			f += " ";
+	}
+
+	f += format;
+
+	if (suffix && *suffix) {
+		if (*suffix != ' ')
+			f += " ";
+		f += suffix;
+	}
+
+	remove_reserved_file_characters(f);
+
+	return f;
+}
+
+string GetOutputFilename(const char *path, const char *ext, bool noSpace,
+			 bool overwrite, const char *format)
+{
+	OBSBasic *main = reinterpret_cast<OBSBasic *>(App()->GetMainWindow());
+
+	os_dir_t *dir = path && path[0] ? os_opendir(path) : nullptr;
+
+	if (!dir) {
+		if (main->isVisible())
+			OBSMessageBox::warning(main,
+					       QTStr("Output.BadPath.Title"),
+					       QTStr("Output.BadPath.Text"));
+		else
+			main->SysTrayNotify(QTStr("Output.BadPath.Text"),
+					    QSystemTrayIcon::Warning);
+		return "";
+	}
+
+	os_closedir(dir);
+
+	string strPath;
+	strPath += path;
+
+	char lastChar = strPath.back();
+	if (lastChar != '/' && lastChar != '\\')
+		strPath += "/";
+
+	strPath += GenerateSpecifiedFilename(ext, noSpace, format);
+	ensure_directory_exists(strPath);
+	if (!overwrite)
+		FindBestFilename(strPath, noSpace);
+
+	return strPath;
+}
+
 vector<pair<string, string>> GetLocaleNames()
 {
 	string path;
diff --git a/UI/obs-app.hpp b/UI/obs-app.hpp
index e10ea6bdd..cb67df0e4 100644
--- a/UI/obs-app.hpp
+++ b/UI/obs-app.hpp
@@ -40,6 +40,10 @@ std::string GenerateTimeDateFilename(const char *extension,
 				     bool noSpace = false);
 std::string GenerateSpecifiedFilename(const char *extension, bool noSpace,
 				      const char *format);
+std::string GetFormatString(const char *format, const char *prefix,
+			    const char *suffix);
+std::string GetOutputFilename(const char *path, const char *ext, bool noSpace,
+			      bool overwrite, const char *format);
 QObject *CreateShortcutFilter();
 
 struct BaseLexer {
diff --git a/UI/window-basic-main-outputs.cpp b/UI/window-basic-main-outputs.cpp
index 47eb33070..708cb270a 100644
--- a/UI/window-basic-main-outputs.cpp
+++ b/UI/window-basic-main-outputs.cpp
@@ -164,36 +164,6 @@ static void OBSStopVirtualCam(void *data, calldata_t *params)
 	UNUSED_PARAMETER(params);
 }
 
-static void FindBestFilename(string &strPath, bool noSpace)
-{
-	int num = 2;
-
-	if (!os_file_exists(strPath.c_str()))
-		return;
-
-	const char *ext = strrchr(strPath.c_str(), '.');
-	if (!ext)
-		return;
-
-	int extStart = int(ext - strPath.c_str());
-	for (;;) {
-		string testPath = strPath;
-		string numStr;
-
-		numStr = noSpace ? "_" : " (";
-		numStr += to_string(num++);
-		if (!noSpace)
-			numStr += ")";
-
-		testPath.insert(extStart, numStr);
-
-		if (!os_file_exists(testPath.c_str())) {
-			strPath = testPath;
-			break;
-		}
-	}
-}
-
 /* ------------------------------------------------------------------------ */
 
 static bool CreateAACEncoder(OBSEncoder &res, string &id, int bitrate,
@@ -903,30 +873,6 @@ bool SimpleOutput::StartStreaming(obs_service_t *service)
 	return false;
 }
 
-static void remove_reserved_file_characters(string &s)
-{
-	replace(s.begin(), s.end(), '\\', '/');
-	replace(s.begin(), s.end(), '*', '_');
-	replace(s.begin(), s.end(), '?', '_');
-	replace(s.begin(), s.end(), '"', '_');
-	replace(s.begin(), s.end(), '|', '_');
-	replace(s.begin(), s.end(), ':', '_');
-	replace(s.begin(), s.end(), '>', '_');
-	replace(s.begin(), s.end(), '<', '_');
-}
-
-static void ensure_directory_exists(string &path)
-{
-	replace(path.begin(), path.end(), '\\', '/');
-
-	size_t last = path.rfind('/');
-	if (last == string::npos)
-		return;
-
-	string directory = path.substr(0, last);
-	os_mkdirs(directory.c_str());
-}
-
 void SimpleOutput::UpdateRecording()
 {
 	if (replayBufferActive || recordingActive)
@@ -977,54 +923,15 @@ bool SimpleOutput::ConfigureRecording(bool updateReplayBuffer)
 	int rbSize =
 		config_get_int(main->Config(), "SimpleOutput", "RecRBSize");
 
-	os_dir_t *dir = path && path[0] ? os_opendir(path) : nullptr;
-
-	if (!dir) {
-		if (main->isVisible())
-			OBSMessageBox::warning(main,
-					       QTStr("Output.BadPath.Title"),
-					       QTStr("Output.BadPath.Text"));
-		else
-			main->SysTrayNotify(QTStr("Output.BadPath.Text"),
-					    QSystemTrayIcon::Warning);
-		return false;
-	}
-
-	os_closedir(dir);
-
+	string f;
 	string strPath;
-	strPath += path;
-
-	char lastChar = strPath.back();
-	if (lastChar != '/' && lastChar != '\\')
-		strPath += "/";
-
-	strPath += GenerateSpecifiedFilename(ffmpegOutput ? "avi" : format,
-					     noSpace, filenameFormat);
-	ensure_directory_exists(strPath);
-	if (!overwriteIfExists)
-		FindBestFilename(strPath, noSpace);
 
 	obs_data_t *settings = obs_data_create();
 	if (updateReplayBuffer) {
-		string f;
-
-		if (rbPrefix && *rbPrefix) {
-			f += rbPrefix;
-			if (f.back() != ' ')
-				f += " ";
-		}
-
-		f += filenameFormat;
-
-		if (rbSuffix && *rbSuffix) {
-			if (*rbSuffix != ' ')
-				f += " ";
-			f += rbSuffix;
-		}
-
-		remove_reserved_file_characters(f);
-
+		f = GetFormatString(filenameFormat, rbPrefix, rbSuffix);
+		strPath = GetOutputFilename(path, ffmpegOutput ? "avi" : format,
+					    noSpace, overwriteIfExists,
+					    f.c_str());
 		obs_data_set_string(settings, "directory", path);
 		obs_data_set_string(settings, "format", f.c_str());
 		obs_data_set_string(settings, "extension", format);
@@ -1033,6 +940,10 @@ bool SimpleOutput::ConfigureRecording(bool updateReplayBuffer)
 		obs_data_set_int(settings, "max_size_mb",
 				 usingRecordingPreset ? rbSize : 0);
 	} else {
+		f = GetFormatString(filenameFormat, nullptr, nullptr);
+		strPath = GetOutputFilename(path, ffmpegOutput ? "avi" : format,
+					    noSpace, overwriteIfExists,
+					    f.c_str());
 		obs_data_set_string(settings, ffmpegOutput ? "url" : "path",
 				    strPath.c_str());
 	}
@@ -1779,34 +1690,9 @@ bool AdvancedOutput::StartRecording()
 						  ? "FFFileNameWithoutSpace"
 						  : "RecFileNameWithoutSpace");
 
-		os_dir_t *dir = path && path[0] ? os_opendir(path) : nullptr;
-
-		if (!dir) {
-			if (main->isVisible())
-				OBSMessageBox::warning(
-					main, QTStr("Output.BadPath.Title"),
-					QTStr("Output.BadPath.Text"));
-			else
-				main->SysTrayNotify(
-					QTStr("Output.BadPath.Text"),
-					QSystemTrayIcon::Warning);
-			return false;
-		}
-
-		os_closedir(dir);
-
-		string strPath;
-		strPath += path;
-
-		char lastChar = strPath.back();
-		if (lastChar != '/' && lastChar != '\\')
-			strPath += "/";
-
-		strPath += GenerateSpecifiedFilename(recFormat, noSpace,
-						     filenameFormat);
-		ensure_directory_exists(strPath);
-		if (!overwriteIfExists)
-			FindBestFilename(strPath, noSpace);
+		string strPath = GetOutputFilename(path, recFormat, noSpace,
+						   overwriteIfExists,
+						   filenameFormat);
 
 		obs_data_t *settings = obs_data_create();
 		obs_data_set_string(settings, ffmpegRecording ? "url" : "path",
@@ -1879,53 +1765,11 @@ bool AdvancedOutput::StartReplayBuffer()
 		rbTime = config_get_int(main->Config(), "AdvOut", "RecRBTime");
 		rbSize = config_get_int(main->Config(), "AdvOut", "RecRBSize");
 
-		os_dir_t *dir = path && path[0] ? os_opendir(path) : nullptr;
-
-		if (!dir) {
-			if (main->isVisible())
-				OBSMessageBox::warning(
-					main, QTStr("Output.BadPath.Title"),
-					QTStr("Output.BadPath.Text"));
-			else
-				main->SysTrayNotify(
-					QTStr("Output.BadPath.Text"),
-					QSystemTrayIcon::Warning);
-			return false;
-		}
-
-		os_closedir(dir);
-
-		string strPath;
-		strPath += path;
-
-		char lastChar = strPath.back();
-		if (lastChar != '/' && lastChar != '\\')
-			strPath += "/";
-
-		strPath += GenerateSpecifiedFilename(recFormat, noSpace,
-						     filenameFormat);
-		ensure_directory_exists(strPath);
-		if (!overwriteIfExists)
-			FindBestFilename(strPath, noSpace);
+		string f = GetFormatString(filenameFormat, rbPrefix, rbSuffix);
+		string strPath = GetOutputFilename(
+			path, recFormat, noSpace, overwriteIfExists, f.c_str());
 
 		obs_data_t *settings = obs_data_create();
-		string f;
-
-		if (rbPrefix && *rbPrefix) {
-			f += rbPrefix;
-			if (f.back() != ' ')
-				f += " ";
-		}
-
-		f += filenameFormat;
-
-		if (rbSuffix && *rbSuffix) {
-			if (*rbSuffix != ' ')
-				f += " ";
-			f += rbSuffix;
-		}
-
-		remove_reserved_file_characters(f);
 
 		obs_data_set_string(settings, "directory", path);
 		obs_data_set_string(settings, "format", f.c_str());