Lines Matching defs:C0
58 opus_int32 C0, num, nrg, rc_Q31, invGain_Q30, Atmp_QA, Atmp1, tmp1, tmp2, x1, x2;
70 silk_sum_sqr_shift( &C0, &rshifts, x, nb_subfr * subfr_length );
72 C0 = silk_LSHIFT32( C0, rshifts - MAX_RSHIFTS );
73 silk_assert( C0 > 0 );
76 lz = silk_CLZ32( C0 ) - 1;
80 C0 = silk_RSHIFT32( C0, rshifts_extra );
83 C0 = silk_LSHIFT32( C0, -rshifts_extra );
87 CAb[ 0 ] = CAf[ 0 ] = C0 + silk_SMMUL( SILK_FIX_CONST( FIND_LPC_COND_FAC, 32 ), C0 ) + 1; /* Q(-rshifts) */
116 CAb[ 0 ] = CAf[ 0 ] = C0 + silk_SMMUL( SILK_FIX_CONST( FIND_LPC_COND_FAC, 32 ), C0 ) + 1; /* Q(-rshifts) */
251 /* Subtract energy of preceding samples from C0 */
255 C0 -= (opus_int32)silk_RSHIFT64( silk_inner_prod16_aligned_64( x_ptr, x_ptr, D ), rshifts );
260 C0 -= silk_LSHIFT32( silk_inner_prod_aligned( x_ptr, x_ptr, D ), -rshifts );
264 *res_nrg = silk_LSHIFT( silk_SMMUL( invGain_Q30, C0 ), 2 );
276 *res_nrg = silk_SMLAWW( nrg, silk_SMMUL( SILK_FIX_CONST( FIND_LPC_COND_FAC, 32 ), C0 ), -tmp1 );/* Q( -rshifts ) */
