Fix for [#34182] Movie Distortion and Bilateral Blur doesn't work together

* added area of interest based on a radius around the input tile.
If someone can implement a correct formula (based on K1, K2 and K3) and send it to me, I will be happy to apply it!

 - At Mind -

source/blender/compositor/operations/COM_MovieDistortionOperation.cpp

@@ -112,3 +112,16 @@ void MovieDistortionOperation::executePixel(float output[4], float x, float y, P
 		this->m_inputOperation->read(output, x, y, COM_PS_BILINEAR);
 	}
 }
+
+bool MovieDistortionOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output)
+{
+	const int marginX = this->m_width*0.15;
+	const int marginY = this->m_height*0.15;
+
+	rcti newInput;
+	newInput.xmin = input->xmin - marginX;
+	newInput.ymin = input->ymin - marginY;
+	newInput.xmax = input->xmax + marginX;
+	newInput.ymax = input->ymax + marginY;
+	return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output);
+}

source/blender/compositor/operations/COM_MovieDistortionOperation.h

@@ -162,6 +162,8 @@ public:
 	
 	void setMovieClip(MovieClip *clip) { this->m_movieClip = clip; }
 	void setFramenumber(int framenumber) { this->m_framenumber = framenumber; }
+	bool determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output);
+
 };
 
 void deintializeDistortionCache(void);