28 for (i = 0; i < n; i++)
29 dst[i] += src[i][0] * src[i][0] + src[i][1] * src[i][1];
36 for (i = 0; i < n; i++) {
37 dst[i][0] = src0[i][0] * src1[i];
38 dst[i][1] = src0[i][1] * src1[i];
43 const float (*
filter)[8][2],
48 for (i = 0; i < n; i++) {
49 float sum_re =
filter[i][6][0] * in[6][0];
50 float sum_im =
filter[i][6][0] * in[6][1];
52 for (j = 0; j < 6; j++) {
53 float in0_re = in[j][0];
54 float in0_im = in[j][1];
55 float in1_re = in[12-j][0];
56 float in1_im = in[12-j][1];
57 sum_re +=
filter[i][j][0] * (in0_re + in1_re) -
58 filter[i][j][1] * (in0_im - in1_im);
59 sum_im +=
filter[i][j][0] * (in0_im + in1_im) +
60 filter[i][j][1] * (in0_re - in1_re);
62 out[i *
stride][0] = sum_re;
63 out[i *
stride][1] = sum_im;
73 for (j = 0; j <
len; j++) {
74 out[i][j][0] = L[0][j][i];
75 out[i][j][1] = L[1][j][i];
87 for (n = 0; n <
len; n++) {
88 out[0][n][i] = in[i][n][0];
89 out[1][n][i] = in[i][n][1];
96 const float phi_fract[2],
float (*Q_fract)[2],
97 const float *transient_gain,
101 static const float a[] = { 0.65143905753106f,
108 ag[m] = a[m] * g_decay_slope;
110 for (n = 0; n <
len; n++) {
111 float in_re = delay[n][0] * phi_fract[0] - delay[n][1] * phi_fract[1];
112 float in_im = delay[n][0] * phi_fract[1] + delay[n][1] * phi_fract[0];
114 float a_re = ag[m] * in_re;
115 float a_im = ag[m] * in_im;
116 float link_delay_re = ap_delay[m][n+2-m][0];
117 float link_delay_im = ap_delay[m][n+2-m][1];
118 float fractional_delay_re = Q_fract[m][0];
119 float fractional_delay_im = Q_fract[m][1];
120 float apd_re = in_re;
121 float apd_im = in_im;
122 in_re = link_delay_re * fractional_delay_re -
123 link_delay_im * fractional_delay_im - a_re;
124 in_im = link_delay_re * fractional_delay_im +
125 link_delay_im * fractional_delay_re - a_im;
126 ap_delay[m][n+5][0] = apd_re + ag[m] * in_re;
127 ap_delay[m][n+5][1] = apd_im + ag[m] * in_im;
129 out[n][0] = transient_gain[n] * in_re;
130 out[n][1] = transient_gain[n] * in_im;
135 float h[2][4],
float h_step[2][4],
142 float hs0 = h_step[0][0];
143 float hs1 = h_step[0][1];
144 float hs2 = h_step[0][2];
145 float hs3 = h_step[0][3];
148 for (n = 0; n <
len; n++) {
150 float l_re = l[n][0];
151 float l_im = l[n][1];
152 float r_re =
r[n][0];
153 float r_im =
r[n][1];
158 l[n][0] = h0 * l_re + h2 * r_re;
159 l[n][1] = h0 * l_im + h2 * r_im;
160 r[n][0] = h1 * l_re + h3 * r_re;
161 r[n][1] = h1 * l_im + h3 * r_im;
166 float h[2][4],
float h_step[2][4],
169 float h00 = h[0][0], h10 = h[1][0];
170 float h01 = h[0][1], h11 = h[1][1];
171 float h02 = h[0][2], h12 = h[1][2];
172 float h03 = h[0][3], h13 = h[1][3];
173 float hs00 = h_step[0][0], hs10 = h_step[1][0];
174 float hs01 = h_step[0][1], hs11 = h_step[1][1];
175 float hs02 = h_step[0][2], hs12 = h_step[1][2];
176 float hs03 = h_step[0][3], hs13 = h_step[1][3];
179 for (n = 0; n <
len; n++) {
181 float l_re = l[n][0];
182 float l_im = l[n][1];
183 float r_re =
r[n][0];
184 float r_im =
r[n][1];
194 l[n][0] = h00 * l_re + h02 * r_re - h10 * l_im - h12 * r_im;
195 l[n][1] = h00 * l_im + h02 * r_im + h10 * l_re + h12 * r_re;
196 r[n][0] = h01 * l_re + h03 * r_re - h11 * l_im - h13 * r_im;
197 r[n][1] = h01 * l_im + h03 * r_im + h11 * l_re + h13 * r_re;
static void ps_stereo_interpolate_c(float(*l)[2], float(*r)[2], float h[2][4], float h_step[2][4], int len)
void ff_psdsp_init_arm(PSDSPContext *s)
av_cold void ff_psdsp_init(PSDSPContext *s)
void(* hybrid_analysis_ileave)(float(*out)[32][2], float L[2][38][64], int i, int len)
static void ps_hybrid_synthesis_deint_c(float out[2][38][64], float(*in)[32][2], int i, int len)
void(* mul_pair_single)(float(*dst)[2], float(*src0)[2], float *src1, int n)
Macro definitions for various function/variable attributes.
static void ps_mul_pair_single_c(float(*dst)[2], float(*src0)[2], float *src1, int n)
void(* stereo_interpolate[2])(float(*l)[2], float(*r)[2], float h[2][4], float h_step[2][4], int len)
static float phi_fract[2][50][2]
void(* hybrid_synthesis_deint)(float out[2][38][64], float(*in)[32][2], int i, int len)
void(* hybrid_analysis)(float(*out)[2], float(*in)[2], const float(*filter)[8][2], int stride, int n)
static void ps_stereo_interpolate_ipdopd_c(float(*l)[2], float(*r)[2], float h[2][4], float h_step[2][4], int len)
static void ps_add_squares_c(float *dst, const float(*src)[2], int n)
static void filter(MpegAudioContext *s, int ch, const short *samples, int incr)
void(* decorrelate)(float(*out)[2], float(*delay)[2], float(*ap_delay)[PS_QMF_TIME_SLOTS+PS_MAX_AP_DELAY][2], const float phi_fract[2], float(*Q_fract)[2], const float *transient_gain, float g_decay_slope, int len)
static void ps_hybrid_analysis_c(float(*out)[2], float(*in)[2], const float(*filter)[8][2], int stride, int n)
#define PS_QMF_TIME_SLOTS
void(* add_squares)(float *dst, const float(*src)[2], int n)
static void ps_decorrelate_c(float(*out)[2], float(*delay)[2], float(*ap_delay)[PS_QMF_TIME_SLOTS+PS_MAX_AP_DELAY][2], const float phi_fract[2], float(*Q_fract)[2], const float *transient_gain, float g_decay_slope, int len)
static void ps_hybrid_analysis_ileave_c(float(*out)[32][2], float L[2][38][64], int i, int len)