*flag_abs_radius=0;/* differential coding by default */
if(*radius_diff_cnt==ISM_FEC_MAX/* make differential encoding in ISM_FEC_MAX consecutive frames at maximum (in order to control the decoding in FEC) */
#ifdef ISM_NON_DIEGETIC_PAN
||last_ism_metadata_flag==2/* If last frame had no metadata coded, do not use differential coding */
#endif
||last_ism_metadata_flag==0/* If last frame had no metadata coded, do not use differential coding */
*flag_abs_angle1=0;/* differential coding by default */
if(angle->angle1_diff_cnt==ISM_FEC_MAX/* make differential encoding in ISM_FEC_MAX consecutive frames at maximum (in order to control the decoding in FEC) */
||last_ism_metadata_flag==0/* If last frame had no metadata coded, do not use differential coding */
#ifdef ISM_NON_DIEGETIC_PAN
||last_ism_metadata_flag==2/* If last frame had no metadata coded, do not use differential coding */