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diff --git a/source/blender/alembic/intern/abc_nurbs.h b/source/blender/alembic/intern/abc_nurbs.h
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+++ b/source/blender/alembic/intern/abc_nurbs.h
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+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Contributor(s): Esteban Tovagliari, Cedric Paille, Kevin Dietrich
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifndef __ABC_NURBS_H__
+#define __ABC_NURBS_H__
+
+#include "abc_object.h"
+
+/* ************************************************************************** */
+
+class AbcNurbsWriter : public AbcObjectWriter {
+	std::vector<Alembic::AbcGeom::ONuPatchSchema> m_nurbs_schema;
+	bool m_is_animated;
+
+public:
+	AbcNurbsWriter(Scene *scene,
+	               Object *ob,
+	               AbcTransformWriter *parent,
+	               uint32_t time_sampling,
+	               ExportSettings &settings);
+
+private:
+	virtual void do_write();
+
+	bool isAnimated() const;
+};
+
+/* ************************************************************************** */
+
+class AbcNurbsReader : public AbcObjectReader {
+	std::vector< std::pair<Alembic::AbcGeom::INuPatchSchema, Alembic::Abc::IObject> > m_schemas;
+
+public:
+	AbcNurbsReader(const Alembic::Abc::IObject &object, ImportSettings &settings);
+
+	bool valid() const;
+
+	void readObjectData(Main *bmain, float time);
+
+private:
+	void getNurbsPatches(const Alembic::Abc::IObject &obj);
+};
+
+#endif  /* __ABC_NURBS_H__ */