FRONT_LEFT_OF_CENTER  252 libavresample/audio_mix_matrix.c             matrix[FRONT_LEFT ][FRONT_LEFT_OF_CENTER ] += 1.0;
FRONT_LEFT_OF_CENTER  255 libavresample/audio_mix_matrix.c             matrix[FRONT_CENTER][FRONT_LEFT_OF_CENTER ] += M_SQRT1_2;
FRONT_LEFT_OF_CENTER  280 libswresample/rematrix.c             matrix[ FRONT_LEFT][ FRONT_LEFT_OF_CENTER]+= 1.0;
FRONT_LEFT_OF_CENTER  283 libswresample/rematrix.c             matrix[ FRONT_CENTER][ FRONT_LEFT_OF_CENTER]+= M_SQRT1_2;