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Searched refs:A_Q28 (Results 1 – 4 of 4) sorted by relevance

/external/libopus/silk/
DLP_variable_cutoff.c43 opus_int32 A_Q28[ TRANSITION_NA ], in silk_LP_interpolate_filter_taps()
62 A_Q28[ na ] = silk_SMLAWB( in silk_LP_interpolate_filter_taps()
79 A_Q28[ na ] = silk_SMLAWB( in silk_LP_interpolate_filter_taps()
88 … silk_memcpy( A_Q28, silk_Transition_LP_A_Q28[ ind ], TRANSITION_NA * sizeof( opus_int32 ) ); in silk_LP_interpolate_filter_taps()
92 …silk_memcpy( A_Q28, silk_Transition_LP_A_Q28[ TRANSITION_INT_NUM - 1 ], TRANSITION_NA * sizeof( op… in silk_LP_interpolate_filter_taps()
106 opus_int32 B_Q28[ TRANSITION_NB ], A_Q28[ TRANSITION_NA ], fac_Q16 = 0; in silk_LP_variable_cutoff() local
126 silk_LP_interpolate_filter_taps( B_Q28, A_Q28, ind, fac_Q16 ); in silk_LP_variable_cutoff()
133 silk_biquad_alt( frame, B_Q28, A_Q28, psLP->In_LP_State, frame, frame_length, 1); in silk_LP_variable_cutoff()
Dbiquad_alt.c45 …const opus_int32 *A_Q28, /* I AR coefficients [2] … in silk_biquad_alt() argument
57 A0_L_Q28 = ( -A_Q28[ 0 ] ) & 0x00003FFF; /* lower part */ in silk_biquad_alt()
58 A0_U_Q28 = silk_RSHIFT( -A_Q28[ 0 ], 14 ); /* upper part */ in silk_biquad_alt()
59 A1_L_Q28 = ( -A_Q28[ 1 ] ) & 0x00003FFF; /* lower part */ in silk_biquad_alt()
60 A1_U_Q28 = silk_RSHIFT( -A_Q28[ 1 ], 14 ); /* upper part */ in silk_biquad_alt()
DSigProc_FIX.h98 …const opus_int32 *A_Q28, /* I AR coefficients [2] …
/external/libopus/src/
Dopus_encoder.c284 const opus_int32 *A_Q28, /* I: AR coefficients [2] */ in silk_biquad_float() argument
297 A[0] = (opus_val32)(A_Q28[0] * (1.f/((opus_int32)1<<28))); in silk_biquad_float()
298 A[1] = (opus_val32)(A_Q28[1] * (1.f/((opus_int32)1<<28))); in silk_biquad_float()
322 opus_int32 B_Q28[ 3 ], A_Q28[ 2 ]; in hp_cutoff() local
339 A_Q28[ 0 ] = silk_SMULWW( r_Q22, silk_SMULWW( Fc_Q19, Fc_Q19 ) - SILK_FIX_CONST( 2.0, 22 ) ); in hp_cutoff()
340 A_Q28[ 1 ] = silk_SMULWW( r_Q22, r_Q22 ); in hp_cutoff()
343 silk_biquad_alt( in, B_Q28, A_Q28, hp_mem, out, len, channels ); in hp_cutoff()
345 silk_biquad_alt( in+1, B_Q28, A_Q28, hp_mem+2, out+1, len, channels ); in hp_cutoff()
348 silk_biquad_float( in, B_Q28, A_Q28, hp_mem, out, len, channels ); in hp_cutoff()
350 silk_biquad_float( in+1, B_Q28, A_Q28, hp_mem+2, out+1, len, channels ); in hp_cutoff()