From f4f92b29bfecdbe80843013cae6408ea32634fda Mon Sep 17 00:00:00 2001
From: WarmUpTill <19472752+WarmUpTill@users.noreply.github.com>
Date: Wed, 13 May 2026 18:39:03 +0200
Subject: [PATCH] Prevent crash when OCR traineddata file is missing

---
 plugins/video/opencv-helpers.cpp     | 3 +--
 plugins/video/parameter-wrappers.hpp | 5 ++++-
 plugins/video/preview-dialog.cpp     | 1 +
 3 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/plugins/video/opencv-helpers.cpp b/plugins/video/opencv-helpers.cpp
index bd5ac933..92f80a3f 100644
--- a/plugins/video/opencv-helpers.cpp
+++ b/plugins/video/opencv-helpers.cpp
@@ -231,10 +231,9 @@ std::optional<std::string> RunOCR(tesseract::TessBaseAPI *ocr,
 				  const QImage &image, const QColor &color,
 				  double colorDiff)
 {
-	(void)ocr;
 	(void)color;
 	(void)colorDiff;
-	if (image.isNull()) {
+	if (!ocr || image.isNull()) {
 		return {};
 	}
 
diff --git a/plugins/video/parameter-wrappers.hpp b/plugins/video/parameter-wrappers.hpp
index a2421f27..04ad2dc2 100644
--- a/plugins/video/parameter-wrappers.hpp
+++ b/plugins/video/parameter-wrappers.hpp
@@ -108,7 +108,10 @@ public:
 	void SetCustomConfigFile(const std::string &);
 	std::string GetCustomConfigFile() const { return configFile; }
 	tesseract::PageSegMode GetPageMode() const { return pageSegMode; }
-	tesseract::TessBaseAPI *GetOCR() const { return ocr.get(); }
+	tesseract::TessBaseAPI *GetOCR() const
+	{
+		return initDone ? ocr.get() : nullptr;
+	}
 
 	StringVariable text = obs_module_text("AdvSceneSwitcher.enterText");
 	RegexConfig regex = RegexConfig::PartialMatchRegexConfig();
diff --git a/plugins/video/preview-dialog.cpp b/plugins/video/preview-dialog.cpp
index 844ccebd..e3f28f4a 100644
--- a/plugins/video/preview-dialog.cpp
+++ b/plugins/video/preview-dialog.cpp
@@ -391,6 +391,7 @@ void PreviewImage::MarkOCRMatch(QImage &screenshot,
 	if (!text) {
 		emit StatusUpdate(obs_module_text(
 			"AdvSceneSwitcher.condition.video.ocrMatchFail"));
+		return;
 	}
 
 	QString status(obs_module_text(