Fixed: fixed black screen when pulling playhead back.

.clangd

@@ -1,7 +0,0 @@
-CompileFlags:
-  Add: []
-  Remove: [-mlongcalls, -fstrict-volatile-bitfields, -fno-shrink-wrap, -fno-tree-switch-conversion,  -mno-direct-extern-access]
-CompileFlags:
-  CompilationDatabase: build
-Diagnostics:
-  Suppress: ['drv_unknown_argument', 'unused-includes', 'pp_file_not_found']

CMakeLists.txt

@@ -18,11 +18,6 @@
 cmake_minimum_required(VERSION 3.13 FATAL_ERROR)
 
 project(olive-editor VERSION 0.2.0 LANGUAGES CXX)
-if(${CMAKE_BUILD_TYPE} EQUAL Debug)
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=memory -g")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=memory -g")
-set(CMAKE_EXE_LINKER_FLAGS  ${CMAKE_EXE_LINKER_FLAGS} -fsanitize=memory)
-endif ()
 
 
 set(CMAKE_C_FLAGS ${CMAKE_C_FLAGS} -DOFX_SUPPORTS_OPENGLRENDER)

app/codec/ffmpeg/ffmpegdecoder.cpp

@@ -361,9 +361,6 @@ TexturePtr FFmpegDecoder::RetrieveVideoInternal(const RetrieveVideoParams &p)
 				}
 			}
 		}
-		qDebug() << "[DECODER] RetrieveVideoInternal time=" << p.time.toDouble()
-				 << "format=" << static_cast<int>(f->format) << "black=" << all_black;
-
 		// Finally, perform any GPU processing required
 		TexturePtr texture = ProcessFrameIntoTexture(f, p, original);
 

app/pluginSupport/OliveClip.cpp

@@ -639,11 +639,13 @@ void olive::plugin::OliveClipInstance::setInputTexture(TexturePtr texture, OfxTi
 		image->EnsureAllocatedFromParams(params_, bounds, regionOfDefinition,
 										 false);
 	} else {
+		pruneImagesCache();
 		image = new Image(*this, params_, bounds,
 										regionOfDefinition, false);
+		image->EnsureAllocatedFromParams(params_, bounds, regionOfDefinition,
+										 false);
 		images_.insert(time, image);
 	}
-	pruneImagesCache();
 
 	uint8_t *dst = (uint8_t*)image->data();
 	if (!dst) {
@@ -655,6 +657,35 @@ void olive::plugin::OliveClipInstance::setInputTexture(TexturePtr texture, OfxTi
 		return;
 	}
 
+	// Detect NaN/Inf in float input data before passing to CImg.
+	// CImg::blur_bilateral computes (int)round(val / sigma) which becomes
+	// undefined behaviour when val is NaN, leading to out-of-bounds indexing
+	// and SIGSEGV on Apple Silicon (where (int)NaN often evaluates to 0 or
+	// INT_MIN, causing huge offsets into bgrid._data).
+	if (params_.format() == core::PixelFormat::F32) {
+		const float *fptr = reinterpret_cast<const float*>(frame->data[0]);
+		int row_floats = frame->linesize[0] / static_cast<int>(sizeof(float));
+		bool has_nan = false;
+		for (int y = 0; y < params_.height() && !has_nan; ++y) {
+			for (int x = 0; x < params_.width() * params_.channel_count(); ++x) {
+				float v = fptr[y * row_floats + x];
+				if (std::isnan(v) || std::isinf(v)) {
+					qWarning() << "[PLUGIN] NaN/Inf detected in input frame at pixel ("
+							   << x / params_.channel_count() << "," << y
+							   << ") channel=" << (x % params_.channel_count())
+							   << " value=" << v;
+					has_nan = true;
+					break;
+				}
+			}
+		}
+		if (has_nan) {
+			qWarning() << "[PLUGIN] Filling corrupted input frame with black to avoid CImg crash";
+			std::memset(dst, 0, image->row_bytes() * image->height());
+			return;
+		}
+	}
+
 	AVFramePtr src_frame = frame;
 	if (frame->format != expected_fmt ||
 		frame->width != params_.width() ||
@@ -703,7 +734,27 @@ copy_pixels:
 	int copy_height = std::min(image->height(), src_frame->height);
 
 	const uint8_t *src = src_frame->data[0];
-	if (dst_row_bytes == src_row_bytes && src_row_bytes == copy_bytes) {
+	if (params_.format() == core::PixelFormat::F32) {
+		const float *src_f = reinterpret_cast<const float*>(src);
+		float *dst_f = reinterpret_cast<float*>(dst);
+		int src_stride = src_row_bytes / static_cast<int>(sizeof(float));
+		int dst_stride = dst_row_bytes / static_cast<int>(sizeof(float));
+		int floats_per_row = copy_bytes / static_cast<int>(sizeof(float));
+		bool has_nan = false;
+		for (int y = 0; y < copy_height; ++y) {
+			for (int i = 0; i < floats_per_row; ++i) {
+				float v = src_f[y * src_stride + i];
+				if (std::isnan(v) || std::isinf(v)) {
+					v = 0.0f;
+					has_nan = true;
+				}
+				dst_f[y * dst_stride + i] = v;
+			}
+		}
+		if (has_nan) {
+			qWarning() << "[PLUGIN] NaN/Inf scrubbed from input frame data during copy";
+		}
+	} else if (dst_row_bytes == src_row_bytes && src_row_bytes == copy_bytes) {
 		std::memcpy(dst, src, copy_bytes * copy_height);
 	} else {
 		for (int y = 0; y < copy_height; ++y) {

app/pluginSupport/OliveHost.h

@@ -18,7 +18,7 @@
 #ifndef OLIVE_HOST_H
 #define OLIVE_HOST_H
 #include "node/plugins/Plugin.h"
-#include  "ofxhHost.h"
+#include "ofxhHost.h"
 #include "ofxhImageEffectAPI.h"
 #include "ofxCore.h"
 #include "ofxhImageEffect.h"
@@ -31,28 +31,25 @@
 #include <list>
 #include <memory>
 #include <qlist.h>
-namespace olive {
-namespace plugin {
-enum class HostMessageType{
-	Error,
-	Warning,
-	Message
-};
-struct HostPersistentMessage{
+namespace olive
+{
+namespace plugin
+{
+enum class HostMessageType { Error, Warning, Message };
+struct HostPersistentMessage {
 	HostMessageType type;
 	QString message;
 };
 
-
 void loadPlugins(QString path);
-class OliveHost: public OFX::Host::ImageEffect::Host{
+class OliveHost : public OFX::Host::ImageEffect::Host {
 public:
-	OliveHost()=default;
+	OliveHost() = default;
 	~OliveHost() override;
 	void destroyInstance(OFX::Host::ImageEffect::Instance *instance);
 
 	bool pluginSupported(OFX::Host::ImageEffect::ImageEffectPlugin *plugin,
-		std::string &reason) const override
+						 std::string &reason) const override
 	{
 		if (!plugin) {
 			reason = "null plugin";
@@ -65,14 +62,14 @@ public:
 		return true;
 	};
 
-	OFX::Host::ImageEffect::Instance* newInstance(void *clientData,
-							OFX::Host::ImageEffect::ImageEffectPlugin* plugin,
-							OFX::Host::ImageEffect::Descriptor& desc,
-							const std::string& context) override;
+	OFX::Host::ImageEffect::Instance *
+	newInstance(void *clientData,
+				OFX::Host::ImageEffect::ImageEffectPlugin *plugin,
+				OFX::Host::ImageEffect::Descriptor &desc,
+				const std::string &context) override;
 
-
-	std::shared_ptr<OFX::Host::ImageEffect::Descriptor> makeDescriptor(
-		OFX::Host::ImageEffect::ImageEffectPlugin* plugin) override;
+	std::shared_ptr<OFX::Host::ImageEffect::Descriptor>
+	makeDescriptor(OFX::Host::ImageEffect::ImageEffectPlugin *plugin) override;
 
 	std::shared_ptr<OFX::Host::ImageEffect::Descriptor>
 	makeDescriptor(const OFX::Host::ImageEffect::Descriptor &rootContext,

app/render/framehashcache.cpp

@@ -1,7 +1,4 @@
-/***
-
-  Olive - Non-Linear Video Editor
-  Copyright (C) 2022 Olive Team
+/*** Olive - Non-Linear Video Editor Copyright (C) 2022 Olive Team
   Modifications Copyright (C) 2025 mikesolar
 
   This program is free software: you can redistribute it and/or modify

app/render/plugin/pluginrenderer.cpp

@@ -152,7 +152,28 @@ static void ApplyParamOverrides(OFX::Host::ImageEffect::Instance &instance,
 			if (auto *param =
 					dynamic_cast<OFX::Host::Param::DoubleInstance *>(
 						entry.second)) {
-				param->set(time, value.data().toDouble());
+				double v = value.data().toDouble();
+				if (std::isnan(v) || std::isinf(v)) {
+					qWarning() << "[PLUGIN] NaN/Inf in double param" << key
+							   << "replacing with default";
+					auto *default_prop =
+						entry.second->getProperties().fetchDoubleProperty(
+							kOfxParamPropDefault);
+					v = default_prop ? default_prop->getValue() : 0.0;
+				}
+				auto *min_prop =
+					entry.second->getProperties().fetchDoubleProperty(
+						kOfxParamPropMin);
+				if (min_prop && v < min_prop->getValue()) {
+					v = min_prop->getValue();
+				}
+				auto *max_prop =
+					entry.second->getProperties().fetchDoubleProperty(
+						kOfxParamPropMax);
+				if (max_prop && v > max_prop->getValue()) {
+					v = max_prop->getValue();
+				}
+				param->set(time, v);
 			}
 			continue;
 		}
@@ -1694,10 +1715,6 @@ void olive::plugin::PluginRenderer::RenderPlugin(TexturePtr src, olive::plugin::
 
 	// render a frame
 	const char *render_field = GetRenderFieldForParams(output_params);
-	qDebug() << "[PLUGIN] RenderPlugin use_opengl=" << use_opengl
-			 << "time=" << frame
-			 << "plugin=" << PluginIdForInstance(instance)
-			 << "dest_valid=" << (destination ? destination->id().isValid() : false);
 	stat = instance->renderAction(frame, render_field, renderWindow, renderScale,
 								  true, interactive, interactive);
 	if (stat != kOfxStatOK && stat != kOfxStatReplyDefault) {
@@ -1750,7 +1767,6 @@ void olive::plugin::PluginRenderer::RenderPlugin(TexturePtr src, olive::plugin::
 				}
 			}
 		}
-		qDebug() << "[PLUGIN] output_image black=" << img_black << "plugin=" << PluginIdForInstance(instance);
 		} else {
 		if (!destination || !destination->id().isValid()) {
 #ifdef OFX_SUPPORTS_OPENGLRENDER
@@ -1796,7 +1812,6 @@ void olive::plugin::PluginRenderer::RenderPlugin(TexturePtr src, olive::plugin::
 	} else {
 		// OpenGL path: plugin has already rendered directly into the destination
 		// texture via FBO/GL. No CPU readback or conversion needed.
-		qDebug() << "[PLUGIN] OpenGL path done, returning directly";
 #ifdef OFX_SUPPORTS_OPENGLRENDER
 		DetachOutputTexture();
 		instance->contextDetachedAction();

app/render/renderprocessor.cpp

@@ -162,8 +162,6 @@ FramePtr RenderProcessor::GenerateFrame(TexturePtr texture,
 				break;
 			}
 		}
-		qDebug() << "[RENDER] GenerateFrame DownloadFromTexture all_black="
-				 << all_black << "total_bytes=" << total_bytes;
 	}
 
 	return frame;
@@ -209,9 +207,6 @@ void RenderProcessor::Run()
 		}
 
 		TexturePtr texture = GenerateTexture(time, frame_length);
-		qDebug() << "[RENDER] GenerateTexture time=" << time.toDouble()
-			 << "tex_null=" << (texture == nullptr)
-			 << "tex_dummy=" << (texture ? texture->IsDummy() : true);
 
 		if (!render_ctx_) {
 			ticket_->Finish();
@@ -269,7 +264,6 @@ void RenderProcessor::Run()
 					}
 
 					render_ctx_->Flush();
-					qDebug() << "[RENDER] Finishing with texture";
 					ticket_->Finish(QVariant::fromValue(texture));
 				} else {
 					ticket_->Finish(QVariant::fromValue(frame));

app/widget/viewer/viewerdisplay.cpp

@@ -382,15 +382,11 @@ void ViewerDisplayWidget::OnPaint()
 								 bg_color.blueF());
 
 	// We only draw if we have a pipeline
-	qDebug() << "[VIEWER] OnPaint push_mode=" << push_mode_
-			 << "color_service=" << (color_service() != nullptr)
-			 << "has_load_frame=" << !load_frame_.isNull();
 	if (push_mode_ != kPushNull) {
 		// Draw texture through color transform
 		VideoParams device_params = GetViewportParams();
 
 		if (push_mode_ == kPushBlank) {
-			qDebug() << "[VIEWER] OnPaint drawing blank";
 			DrawBlank(device_params);
 		} else if (color_service()) {
 			if (FramePtr frame = load_frame_.value<FramePtr>()) {
@@ -494,7 +490,6 @@ void ViewerDisplayWidget::OnPaint()
 				ctj.SetForceOpaque(true);
 
 				renderer()->BlitColorManaged(ctj, device_params);
-				qDebug() << "[VIEWER] OnPaint BlitColorManaged done";
 			}
 		} else {
 			qDebug() << "[VIEWER] OnPaint no color_service, skipping texture draw";