Support both recommended and legacy layouts in Windows installer

Default to %ProgramData%\obs-studio\plugins\ on fresh installs.
Restore the previously recorded install path on upgrades, so users
who installed to a custom location are not silently moved.

.github/scripts/Package-Windows.ps1

@@ -68,44 +68,53 @@ function Package {
 
     Remove-Item @RemoveArgs
 
-    # Build a staging directory with two subfolders:
-    #   recommended/ - new layout, extract to %ProgramData%\obs-studio\
-    #   legacy/      - old layout, extract to the OBS install directory
-    $ReleasePath  = "${ProjectRoot}/release/${Configuration}"
-    $StagingPath  = "${ProjectRoot}/release/zip-staging"
-    $NewBinPath   = "${ReleasePath}/${ProductName}/bin/64bit"
-    $NewDataPath  = "${ReleasePath}/${ProductName}/data"
-
-    Remove-Item -Path $StagingPath -Recurse -Force -ErrorAction SilentlyContinue
-    New-Item -ItemType Directory -Force -Path $StagingPath | Out-Null
-    Copy-Item -Path "${ProjectRoot}/build-aux/CI/windows/README.txt" -Destination "${StagingPath}/README.txt"
+    $ReleasePath = "${ProjectRoot}/release/${Configuration}"
+    $NewBinPath  = "${ReleasePath}/${ProductName}/bin/64bit"
+    $NewDataPath = "${ReleasePath}/${ProductName}/data"
+    $CIWindowsDir = "${ProjectRoot}/build-aux/CI/windows"
 
+    # --- Recommended zip (new layout, extract to %ProgramData%\obs-studio\) ---
+    Log-Group "Archiving ${ProductName} (recommended)..."
+    $RecStaging = "${ProjectRoot}/release/zip-staging-rec"
+    Remove-Item -Path $RecStaging -Recurse -Force -ErrorAction SilentlyContinue
+    New-Item -ItemType Directory -Force -Path $RecStaging | Out-Null
+    Copy-Item -Path "${CIWindowsDir}/README.txt" -Destination "${RecStaging}/README.txt"
     if ( Test-Path -Path $NewBinPath ) {
-        $RecBinPath    = "${StagingPath}/recommended/${ProductName}/bin/64bit"
-        $LegacyBinPath = "${StagingPath}/legacy/obs-plugins/64bit"
-        New-Item -ItemType Directory -Force -Path $RecBinPath    | Out-Null
-        New-Item -ItemType Directory -Force -Path $LegacyBinPath | Out-Null
-        Copy-Item -Path "${NewBinPath}/*" -Destination $RecBinPath    -Recurse -Force
-        Copy-Item -Path "${NewBinPath}/*" -Destination $LegacyBinPath -Recurse -Force
+        $RecBinPath = "${RecStaging}/${ProductName}/bin/64bit"
+        New-Item -ItemType Directory -Force -Path $RecBinPath | Out-Null
+        Copy-Item -Path "${NewBinPath}/*" -Destination $RecBinPath -Recurse -Force
     }
     if ( Test-Path -Path $NewDataPath ) {
-        $RecDataPath    = "${StagingPath}/recommended/${ProductName}/data"
-        $LegacyDataPath = "${StagingPath}/legacy/data/obs-plugins/${ProductName}"
-        New-Item -ItemType Directory -Force -Path $RecDataPath    | Out-Null
-        New-Item -ItemType Directory -Force -Path $LegacyDataPath | Out-Null
-        Copy-Item -Path "${NewDataPath}/*" -Destination $RecDataPath    -Recurse -Force
-        Copy-Item -Path "${NewDataPath}/*" -Destination $LegacyDataPath -Recurse -Force
+        $RecDataPath = "${RecStaging}/${ProductName}/data"
+        New-Item -ItemType Directory -Force -Path $RecDataPath | Out-Null
+        Copy-Item -Path "${NewDataPath}/*" -Destination $RecDataPath -Recurse -Force
     }
+    Compress-Archive -Force -Path (Get-ChildItem -Path $RecStaging) `
+        -CompressionLevel Optimal `
+        -DestinationPath "${ProjectRoot}/release/${OutputName}.zip"
+    Remove-Item -Path $RecStaging -Recurse -Force
+    Log-Group
 
-    Log-Group "Archiving ${ProductName}..."
-    $CompressArgs = @{
-        Path = (Get-ChildItem -Path $StagingPath)
-        CompressionLevel = 'Optimal'
-        DestinationPath = "${ProjectRoot}/release/${OutputName}.zip"
-        Verbose = ($null -ne $Env:CI)
+    # --- Legacy zip (old layout, extract to OBS install directory) ---
+    Log-Group "Archiving ${ProductName} (legacy)..."
+    $LegStaging = "${ProjectRoot}/release/zip-staging-leg"
+    Remove-Item -Path $LegStaging -Recurse -Force -ErrorAction SilentlyContinue
+    New-Item -ItemType Directory -Force -Path $LegStaging | Out-Null
+    Copy-Item -Path "${CIWindowsDir}/README-legacy.txt" -Destination "${LegStaging}/README.txt"
+    if ( Test-Path -Path $NewBinPath ) {
+        $LegBinPath = "${LegStaging}/obs-plugins/64bit"
+        New-Item -ItemType Directory -Force -Path $LegBinPath | Out-Null
+        Copy-Item -Path "${NewBinPath}/*" -Destination $LegBinPath -Recurse -Force
     }
-    Compress-Archive -Force @CompressArgs
-    Remove-Item -Path $StagingPath -Recurse -Force
+    if ( Test-Path -Path $NewDataPath ) {
+        $LegDataPath = "${LegStaging}/data/obs-plugins/${ProductName}"
+        New-Item -ItemType Directory -Force -Path $LegDataPath | Out-Null
+        Copy-Item -Path "${NewDataPath}/*" -Destination $LegDataPath -Recurse -Force
+    }
+    Compress-Archive -Force -Path (Get-ChildItem -Path $LegStaging) `
+        -CompressionLevel Optimal `
+        -DestinationPath "${ProjectRoot}/release/${OutputName}-legacy.zip"
+    Remove-Item -Path $LegStaging -Recurse -Force
     Log-Group
 
     if ( ( $BuildInstaller ) ) {
@@ -120,7 +129,24 @@ function Package {
         Push-Location -Stack BuildTemp
         Ensure-Location -Path "${ProjectRoot}/release"
         Remove-Item -Path Package -Recurse -Force -ErrorAction SilentlyContinue
-        Copy-Item -Path ${Configuration} -Destination Package -Recurse
+
+        # Recommended layout (for %ProgramData%\obs-studio\plugins\)
+        $PkgRec = "Package/recommended"
+        New-Item -ItemType Directory -Force -Path $PkgRec | Out-Null
+        Copy-Item -Path "${Configuration}/*" -Destination $PkgRec -Recurse -Force
+
+        # Legacy layout (for OBS installation directory)
+        if ( Test-Path "${Configuration}/${ProductName}/bin/64bit" ) {
+            $PkgLegBin = "Package/legacy/obs-plugins/64bit"
+            New-Item -ItemType Directory -Force -Path $PkgLegBin | Out-Null
+            Copy-Item -Path "${Configuration}/${ProductName}/bin/64bit/*" -Destination $PkgLegBin -Recurse -Force
+        }
+        if ( Test-Path "${Configuration}/${ProductName}/data" ) {
+            $PkgLegData = "Package/legacy/data/obs-plugins/${ProductName}"
+            New-Item -ItemType Directory -Force -Path $PkgLegData | Out-Null
+            Copy-Item -Path "${Configuration}/${ProductName}/data/*" -Destination $PkgLegData -Recurse -Force
+        }
+
         Invoke-External iscc ${IsccFile} /O"${ProjectRoot}/release" /F"${OutputName}-Installer"
         Remove-Item -Path Package -Recurse
         Pop-Location -Stack BuildTemp

build-aux/CI/windows/README-legacy.txt

@@ -0,0 +1,23 @@
+Advanced Scene Switcher - Windows Installation (Legacy)
+========================================================
+
+For full installation instructions visit:
+https://github.com/WarmUpTill/SceneSwitcher/wiki/Installation
+
+
+This archive uses the legacy plugin layout for older OBS versions,
+portable OBS installs, and Steam.
+
+Extract the CONTENTS of this archive into your OBS installation directory,
+typically:
+
+    C:\Program Files\obs-studio\
+
+Merge the data\ and obs-plugins\ folders with the existing ones when prompted.
+
+Steam users: right-click OBS in your library -> Manage -> Browse local files,
+then extract the contents of this archive into that directory.
+
+
+For OBS 28 and newer the recommended archive is preferred:
+    advanced-scene-switcher-<version>-windows-x64.zip

build-aux/CI/windows/README.txt

@@ -1,22 +1,15 @@
 Advanced Scene Switcher - Windows Installation
-==============================================
+===============================================
 
 For full installation instructions visit:
 https://github.com/WarmUpTill/SceneSwitcher/wiki/Installation
 
 
-Quick guide
------------
+This archive uses the recommended plugin layout for OBS 28 and newer.
 
-This archive contains two installation methods.
-Choose ONE depending on your OBS version.
+Extract the CONTENTS of this archive into:
 
-
-recommended\   (preferred)
----------------------------------------------
-Extract the CONTENTS of this folder into:
-
-    C:\ProgramData\obs-studio\
+    C:\ProgramData\obs-studio\plugins\
 
 Tip: press Win+R and type  %ProgramData%\obs-studio\plugins  to open that folder.
 
@@ -24,14 +17,5 @@ After extracting, the path should look like:
     C:\ProgramData\obs-studio\plugins\advanced-scene-switcher\bin\64bit\advanced-scene-switcher.dll
 
 
-legacy\   (older OBS versions, portable OBS installs, or if the recommended method does not work)
----------------------------------------------------------------------------
-Extract the CONTENTS of this folder into your OBS installation directory,
-typically:
-
-    C:\Program Files\obs-studio\
-
-Merge the data\ and obs-plugins\ folders with the existing ones when prompted.
-
-Steam users: right-click OBS in your library -> Manage -> Browse local files,
-then extract the contents of legacy\ into that directory.
+If the plugin does not appear in OBS, try the legacy archive instead:
+    advanced-scene-switcher-<version>-windows-x64-legacy.zip

cmake/windows/resources/installer-Windows.iss.in

@@ -23,14 +23,17 @@ SolidCompression=yes
 DirExistsWarning=no
 UsePreviousAppDir=no
 SetupIconFile=installer.ico
-UninstallDisplayIcon={app}\advanced-scene-switcher\data\res\images\logo.ico
+UninstallDisplayIcon={code:GetUninstallIconPath}
 DisableDirPage=no
 
 [Languages]
 Name: "english"; MessagesFile: "compiler:Default.isl"
 
 [Files]
-Source: "..\release\Package\*"; DestDir: "{app}"; Flags: ignoreversion recursesubdirs createallsubdirs
+; Recommended layout - used when installing to %ProgramData%\obs-studio\plugins\
+Source: "..\release\Package\recommended\*"; DestDir: "{app}"; Flags: ignoreversion recursesubdirs createallsubdirs; Check: IsRecommendedLayout
+; Legacy layout - used when installing to the OBS installation directory
+Source: "..\release\Package\legacy\*"; DestDir: "{app}"; Flags: ignoreversion recursesubdirs createallsubdirs; Check: IsLegacyLayout
 Source: "..\LICENSE"; Flags: dontcopy
 ; NOTE: Don't use "Flags: ignoreversion" on any shared system files
 
@@ -53,23 +56,54 @@ begin
   );
 end;
 
+// Returns true when the selected install directory is under %ProgramData%,
+// meaning the recommended plugin layout should be used.
+function IsRecommendedLayout(): Boolean;
+begin
+  Result := Pos(LowerCase(ExpandConstant('{commonappdata}')),
+                LowerCase(WizardDirValue())) = 1;
+end;
+
+function IsLegacyLayout(): Boolean;
+begin
+  Result := not IsRecommendedLayout();
+end;
+
+function GetUninstallIconPath(Param: string): string;
+begin
+  if IsRecommendedLayout() then
+    Result := ExpandConstant('{app}\advanced-scene-switcher\data\res\images\logo.ico')
+  else
+    Result := ExpandConstant('{app}\data\obs-plugins\advanced-scene-switcher\res\images\logo.ico');
+end;
+
 function GetDirName(Value: string): string;
+var
+  PrevPath: string;
+  UninstallKey: string;
 begin
   Result := ExpandConstant('{commonappdata}\obs-studio\plugins');
+  UninstallKey := 'SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\' + '{' + '{#MyAppId}' + '}_is1';
+  if RegQueryStringValue(HKLM, UninstallKey, 'InstallLocation', PrevPath) and (PrevPath <> '') then
+    Result := PrevPath;
 end;
 
 // Remove files placed by the legacy installer (obs-plugins/64bit and
 // data/obs-plugins layout) so the plugin is not loaded twice by OBS.
-// We read InstallLocation from our own previous uninstall entry, which is
-// the exact directory the old installer used regardless of OBS install path.
+// Only runs when upgrading from a legacy location to the recommended one.
 procedure RemoveLegacyFiles();
 var
   OldInstallPath: string;
   UninstallKey: string;
 begin
+  if not IsRecommendedLayout() then
+    Exit;
   UninstallKey := 'SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\' + '{' + '{#MyAppId}' + '}_is1';
   if not RegQueryStringValue(HKLM, UninstallKey, 'InstallLocation', OldInstallPath) then
     Exit;
+  // Skip if the previous install was already in the recommended location
+  if Pos(LowerCase(ExpandConstant('{commonappdata}')), LowerCase(OldInstallPath)) = 1 then
+    Exit;
   DeleteFile(OldInstallPath + '\obs-plugins\64bit\advanced-scene-switcher.dll');
   DeleteFile(OldInstallPath + '\obs-plugins\64bit\advanced-scene-switcher.pdb');
   DeleteFile(OldInstallPath + '\obs-plugins\64bit\advanced-scene-switcher-lib.dll');
@@ -83,4 +117,3 @@ begin
   if CurStep = ssInstall then
     RemoveLegacyFiles();
 end;
-

lib/advanced-scene-switcher.cpp

@@ -461,12 +461,13 @@ void SwitcherData::Stop()
 		SetMacroAbortWait(true);
 		GetMacroWaitCV().notify_all();
 		GetMacroTransitionCV().notify_all();
-		StopAllMacros();
+		SignalStopAllMacros();
 		StopAndClearAllActionQueues();
 		CloseAllInputDialogs();
 		th->wait();
 		delete th;
 		th = nullptr;
+		WaitForAllMacros();
 		RunStopSteps();
 	}
 

lib/macro/macro-helpers.hpp

@@ -76,7 +76,8 @@ EXPORT bool RunMacroElseActions(Macro *, bool forceParallel = false,
 				bool ignorePause = false);
 EXPORT bool RunMacros();
 
-void StopAllMacros();
+void SignalStopAllMacros();
+void WaitForAllMacros();
 
 EXPORT void LoadMacros(obs_data_t *obj);
 EXPORT void SaveMacros(obs_data_t *obj);

lib/macro/macro-ref.cpp

@@ -74,11 +74,11 @@ void LoadMacroList(obs_data_t *obj, std::vector<MacroRef> &macros,
 {
 	obs_data_array_t *array = obs_data_get_array(obj, name.c_str());
 	size_t count = obs_data_array_count(array);
+	macros.reserve(macros.size() + count);
 	for (size_t i = 0; i < count; i++) {
 		obs_data_t *array_obj = obs_data_array_item(array, i);
-		MacroRef ref;
-		ref.Load(array_obj);
-		macros.push_back(ref);
+		macros.emplace_back();
+		macros.back().Load(array_obj);
 		obs_data_release(array_obj);
 	}
 	obs_data_array_release(array);

lib/macro/macro-tab.cpp

@@ -395,7 +395,7 @@ void AdvSceneSwitcher::ImportMacros()
 	std::vector<std::shared_ptr<Macro>> importedMacros;
 	auto &tempMacros = GetTemporaryMacros();
 
-	auto lock = LockContext();
+	std::unique_lock<std::mutex> lock(*GetMutex());
 	for (size_t i = 0; i < count; i++) {
 		tempMacros.clear();
 
@@ -405,10 +405,14 @@ void AdvSceneSwitcher::ImportMacros()
 		macro->Load(array_obj);
 		RunAndClearPostLoadSteps();
 
-		if (macroNameExists(macro->Name()) &&
-		    !ResolveMacroImportNameConflict(macro)) {
-			groupSize--;
-			continue;
+		if (macroNameExists(macro->Name())) {
+			lock.unlock();
+			bool resolved = ResolveMacroImportNameConflict(macro);
+			lock.lock();
+			if (!resolved) {
+				groupSize--;
+				continue;
+			}
 		}
 
 		importedMacros.emplace_back(macro);

lib/macro/macro.cpp

@@ -1316,7 +1316,14 @@ bool RunMacros()
 	return true;
 }
 
-void StopAllMacros()
+void SignalStopAllMacros()
+{
+	for (const auto &m : GetAllMacros()) {
+		m->SignalStop();
+	}
+}
+
+void WaitForAllMacros()
 {
 	for (const auto &m : GetAllMacros()) {
 		m->Stop();

lib/macro/macro.hpp

@@ -61,6 +61,7 @@ public:
 	PauseStateSaveBehavior GetPauseStateSaveBehavior() const;
 
 	void Stop();
+	void SignalStop() { _stop = true; }
 	bool GetStop() const { return _stop; }
 	void ResetTimers();
 
@@ -228,7 +229,7 @@ void LoadMacros(obs_data_t *obj);
 void SaveMacros(obs_data_t *obj);
 bool CheckMacros();
 bool RunMacros();
-void StopAllMacros();
+void WaitForAllMacros();
 void InvalidateMacroTempVarValues();
 std::shared_ptr<Macro> GetMacroWithInvalidConditionInterval();
 

plugins/twitch/event-sub.cpp

@@ -262,12 +262,21 @@ std::string EventSub::AddEventSubscription(std::shared_ptr<TwitchToken> token,
 		return "";
 	}
 
+	// Capture the session ID and release the lock before making the HTTP
+	// request. Holding the mutex during a network call would block
+	// SubscriptionIsActive() on the condition-check thread for the entire
+	// duration of the request, causing visibly slow macro evaluations.
+	const std::string sessionID = eventSub->_sessionID;
+	lock.unlock();
+
 	OBSDataAutoRelease postData = copyData(subscription.data);
-	setTransportData(postData.Get(), eventSub->_sessionID);
+	setTransportData(postData.Get(), sessionID);
 	auto result = SendPostRequest(*token, registerSubscriptionURL.data(),
 				      registerSubscriptionPath.data(), {},
 				      postData.Get());
 
+	lock.lock();
+
 	if (result.status != 202) {
 		const char *error = obs_data_get_string(result.data, "error");
 		const char *message =
@@ -280,6 +289,24 @@ std::string EventSub::AddEventSubscription(std::shared_ptr<TwitchToken> token,
 		return "";
 	}
 
+	// Verify the session has not been replaced while the HTTP request was
+	// in flight (e.g. a reconnect occurred). If it was, the subscription
+	// we just created belongs to a dead session and must be discarded so
+	// the caller will retry with the new session ID.
+	if (eventSub->_sessionID != sessionID) {
+		blog(LOG_INFO,
+		     "discarding Twitch EventSub registration - session ID "
+		     "changed during HTTP request");
+		return "";
+	}
+
+	// Another thread may have registered the same subscription while the
+	// lock was released.
+	if (isAlreadySubscribed(eventSub->_activeSubscriptions, subscription)) {
+		eventSub->LogActiveSubscriptions();
+		return eventSub->_activeSubscriptions.find(subscription)->id;
+	}
+
 	OBSDataArrayAutoRelease replyArray =
 		obs_data_get_array(result.data, "data");
 	OBSDataAutoRelease replyData = obs_data_array_item(replyArray, 0);
@@ -439,9 +466,10 @@ void EventSub::OnMessage(connection_hdl, EventSubWSClient::message_ptr message)
 
 void EventSub::HandleWelcome(obs_data_t *data)
 {
+	std::lock_guard<std::mutex> lock(_subscriptionMtx);
 	OBSDataAutoRelease session = obs_data_get_obj(data, "session");
 	_sessionID = obs_data_get_string(session, "id");
-	ClearActiveSubscriptions();
+	_activeSubscriptions.clear();
 	blog(LOG_INFO, "Twitch EventSub connected");
 	vblog(LOG_INFO, "Twitch EventSub session id: %s", _sessionID.c_str());
 }

plugins/video/macro-condition-video.cpp

@@ -403,11 +403,12 @@ bool MacroConditionVideo::CheckBrightnessThreshold()
 
 bool MacroConditionVideo::CheckOCR()
 {
-	if (!_ocrParameters.Initialized()) {
+	auto *ocr = _ocrParameters.GetOCR();
+	if (!ocr) {
 		return false;
 	}
 
-	auto text = RunOCR(_ocrParameters.GetOCR(), _screenshotData.GetImage(),
+	auto text = RunOCR(ocr, _screenshotData.GetImage(),
 			   _ocrParameters.color, _ocrParameters.colorThreshold);
 	if (!text) {
 		return false;

plugins/video/parameter-wrappers.cpp

@@ -82,7 +82,7 @@ bool ObjDetectParameters::Save(obs_data_t *obj) const
 	minSize.Save(data, "minSize");
 	maxSize.Save(data, "maxSize");
 	obs_data_set_obj(obj, "objectMatchData", data);
-	obs_data_set_int(data, "version", 1);
+	obs_data_set_int(data, "version", 2);
 	obs_data_release(data);
 	return true;
 }
@@ -121,6 +121,21 @@ bool ObjDetectParameters::Load(obs_data_t *obj)
 	// TODO: Remove this fallback in a future version
 	if (!obs_data_has_user_value(data, "version")) {
 		scaleFactor = obs_data_get_double(data, "scaleFactor");
+	} else if (obs_data_get_int(data, "version") == 1) {
+#ifdef _WIN32
+		// On Windows the plugin directory moved from
+		// "Program Files/.../data/obs-plugins/advanced-scene-switcher"
+		// to "ProgramData/.../plugins/advanced-scene-switcher/data",
+		// which invalidates previously saved default model paths.
+		const std::string oldPrefix =
+			"../../data/obs-plugins/advanced-scene-switcher/res/cascadeClassifiers/";
+		if (modelPath.substr(0, oldPrefix.size()) == oldPrefix) {
+			modelPath = std::string(obs_get_module_data_path(
+					    obs_current_module())) +
+				    "/res/cascadeClassifiers/" +
+				    modelPath.substr(oldPrefix.size());
+		}
+#endif
 	}
 	if (scaleFactor.IsFixedType() && !isScaleFactorValid(scaleFactor)) {
 		scaleFactor = 1.1;
@@ -303,9 +318,6 @@ OCRParameters::OCRParameters(const OCRParameters &other)
 	  useConfig(other.useConfig),
 	  configFile(other.configFile)
 {
-	if (!initDone) {
-		Setup();
-	}
 }
 
 OCRParameters &OCRParameters::operator=(const OCRParameters &other)
@@ -319,9 +331,7 @@ OCRParameters &OCRParameters::operator=(const OCRParameters &other)
 	languageCode = other.languageCode;
 	useConfig = other.useConfig;
 	configFile = other.configFile;
-	if (!initDone) {
-		Setup();
-	}
+	initDone = false;
 	return *this;
 }
 
@@ -337,7 +347,7 @@ bool OCRParameters::Save(obs_data_t *obj) const
 	SaveColor(data, "textColor", color);
 	colorThreshold.Save(data, "colorThreshold");
 	obs_data_set_int(data, "pageSegMode", static_cast<int>(pageSegMode));
-	obs_data_set_int(data, "version", 2);
+	obs_data_set_int(data, "version", 3);
 	obs_data_set_obj(obj, "ocrData", data);
 	obs_data_release(data);
 	return true;
@@ -356,6 +366,23 @@ bool OCRParameters::Load(obs_data_t *obj)
 		tesseractBasePath = std::string(obs_get_module_data_path(
 					    obs_current_module())) +
 				    "/res/ocr/";
+	} else if (obs_data_get_int(data, "version") == 2) {
+#ifdef _WIN32
+		// On Windows the plugin directory moved from
+		// "Program Files/.../data/obs-plugins/advanced-scene-switcher"
+		// to "ProgramData/.../plugins/advanced-scene-switcher/data",
+		// which invalidates the previously saved default OCR path.
+		const std::string oldPath = tesseractBasePath;
+		if (oldPath ==
+			    "../../data/obs-plugins/advanced-scene-switcher/res/ocr/" ||
+		    oldPath ==
+			    "../../data/obs-plugins/advanced-scene-switcher/res/ocr") {
+			tesseractBasePath =
+				std::string(obs_get_module_data_path(
+					obs_current_module())) +
+				"/res/ocr/";
+		}
+#endif
 	}
 	useConfig = obs_data_get_bool(data, "useConfig");
 	configFile = obs_data_get_string(data, "configFile");
@@ -380,6 +407,14 @@ void OCRParameters::SetPageMode(tesseract::PageSegMode mode)
 	}
 }
 
+tesseract::TessBaseAPI *OCRParameters::GetOCR()
+{
+	if (!initDone) {
+		Setup();
+	}
+	return initDone ? ocr.get() : nullptr;
+}
+
 bool OCRParameters::SetLanguageCode(const std::string &value)
 {
 	const auto dataPath = QString::fromStdString(tesseractBasePath) + "/" +
@@ -389,7 +424,7 @@ bool OCRParameters::SetLanguageCode(const std::string &value)
 		return false;
 	}
 	languageCode = value;
-	Setup();
+	initDone = false;
 	return true;
 }
 
@@ -408,7 +443,7 @@ bool OCRParameters::SetTesseractBasePath(const std::string &value)
 		return false;
 	}
 	tesseractBasePath = value;
-	Setup();
+	initDone = false;
 	return true;
 }
 
@@ -420,13 +455,13 @@ std::string OCRParameters::GetTesseractBasePath() const
 void OCRParameters::EnableCustomConfig(bool enable)
 {
 	useConfig = enable;
-	Setup();
+	initDone = false;
 }
 
 void OCRParameters::SetCustomConfigFile(const std::string &filename)
 {
 	configFile = filename;
-	Setup();
+	initDone = false;
 }
 
 void OCRParameters::Setup()

plugins/video/parameter-wrappers.hpp

@@ -108,10 +108,7 @@ public:
 	void SetCustomConfigFile(const std::string &);
 	std::string GetCustomConfigFile() const { return configFile; }
 	tesseract::PageSegMode GetPageMode() const { return pageSegMode; }
-	tesseract::TessBaseAPI *GetOCR() const
-	{
-		return initDone ? ocr.get() : nullptr;
-	}
+	tesseract::TessBaseAPI *GetOCR();
 
 	StringVariable text = obs_module_text("AdvSceneSwitcher.enterText");
 	RegexConfig regex = RegexConfig::PartialMatchRegexConfig();