setBgf1            83 3rdparty/openexr/IlmImf/ImfTimeCode.cpp     setBgf1 (bgf1);
setBgf1           385 3rdparty/openexr/IlmImf/ImfTimeCode.cpp         setBgf1 (true);
setBgf1           195 3rdparty/openexr/IlmImf/ImfTimeCode.h     void	setBgf1 (bool value);