copy_len=NS2SA(output_frame*FRAMES_PER_SEC,(2*FRAME_SIZE_NS-L_PROT_NS)/2);/* prototype fill on each side of xsubst to fill MDCT Frame */
copy_len=NS2SA_FX2(L_mult0(output_frame,FRAMES_PER_SEC),(2*FRAME_SIZE_NS-L_PROT_NS)/2);/* prototype fill on each side of xsubst to fill MDCT Frame */
move16();
ola_len=NS2SA(output_frame*FRAMES_PER_SEC,N_ZERO_MDCT_NS-(2*FRAME_SIZE_NS-L_PROT_NS)/2);/* remaining lengt of LA_ZEROS to overlap add decoded with xsubst */
ola_len=NS2SA_FX2(L_mult0(output_frame,FRAMES_PER_SEC),N_ZERO_MDCT_NS-(2*FRAME_SIZE_NS-L_PROT_NS)/2);/* remaining lengt of LA_ZEROS to overlap add decoded with xsubst */