diff options
Diffstat (limited to 'libavcodec/aacpsdsp.c')
-rw-r--r-- | libavcodec/aacpsdsp.c | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/libavcodec/aacpsdsp.c b/libavcodec/aacpsdsp.c deleted file mode 100644 index 88e731f..0000000 --- a/libavcodec/aacpsdsp.c +++ /dev/null @@ -1,214 +0,0 @@ -/* - * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com> - * - * This file is part of Libav. - * - * Libav is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * Libav is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include "config.h" -#include "libavutil/attributes.h" -#include "aacpsdsp.h" - -static void ps_add_squares_c(float *dst, const float (*src)[2], int n) -{ - int i; - for (i = 0; i < n; i++) - dst[i] += src[i][0] * src[i][0] + src[i][1] * src[i][1]; -} - -static void ps_mul_pair_single_c(float (*dst)[2], float (*src0)[2], float *src1, - int n) -{ - int i; - for (i = 0; i < n; i++) { - dst[i][0] = src0[i][0] * src1[i]; - dst[i][1] = src0[i][1] * src1[i]; - } -} - -static void ps_hybrid_analysis_c(float (*out)[2], float (*in)[2], - const float (*filter)[8][2], - int stride, int n) -{ - int i, j; - - for (i = 0; i < n; i++) { - float sum_re = filter[i][6][0] * in[6][0]; - float sum_im = filter[i][6][0] * in[6][1]; - - for (j = 0; j < 6; j++) { - float in0_re = in[j][0]; - float in0_im = in[j][1]; - float in1_re = in[12-j][0]; - float in1_im = in[12-j][1]; - sum_re += filter[i][j][0] * (in0_re + in1_re) - - filter[i][j][1] * (in0_im - in1_im); - sum_im += filter[i][j][0] * (in0_im + in1_im) + - filter[i][j][1] * (in0_re - in1_re); - } - out[i * stride][0] = sum_re; - out[i * stride][1] = sum_im; - } -} - -static void ps_hybrid_analysis_ileave_c(float (*out)[32][2], float L[2][38][64], - int i, int len) -{ - int j; - - for (; i < 64; i++) { - for (j = 0; j < len; j++) { - out[i][j][0] = L[0][j][i]; - out[i][j][1] = L[1][j][i]; - } - } -} - -static void ps_hybrid_synthesis_deint_c(float out[2][38][64], - float (*in)[32][2], - int i, int len) -{ - int n; - - for (; i < 64; i++) { - for (n = 0; n < len; n++) { - out[0][n][i] = in[i][n][0]; - out[1][n][i] = in[i][n][1]; - } - } -} - -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], const float (*Q_fract)[2], - const float *transient_gain, - float g_decay_slope, - int len) -{ - static const float a[] = { 0.65143905753106f, - 0.56471812200776f, - 0.48954165955695f }; - float ag[PS_AP_LINKS]; - int m, n; - - for (m = 0; m < PS_AP_LINKS; m++) - ag[m] = a[m] * g_decay_slope; - - for (n = 0; n < len; n++) { - float in_re = delay[n][0] * phi_fract[0] - delay[n][1] * phi_fract[1]; - float in_im = delay[n][0] * phi_fract[1] + delay[n][1] * phi_fract[0]; - for (m = 0; m < PS_AP_LINKS; m++) { - float a_re = ag[m] * in_re; - float a_im = ag[m] * in_im; - float link_delay_re = ap_delay[m][n+2-m][0]; - float link_delay_im = ap_delay[m][n+2-m][1]; - float fractional_delay_re = Q_fract[m][0]; - float fractional_delay_im = Q_fract[m][1]; - float apd_re = in_re; - float apd_im = in_im; - in_re = link_delay_re * fractional_delay_re - - link_delay_im * fractional_delay_im - a_re; - in_im = link_delay_re * fractional_delay_im + - link_delay_im * fractional_delay_re - a_im; - ap_delay[m][n+5][0] = apd_re + ag[m] * in_re; - ap_delay[m][n+5][1] = apd_im + ag[m] * in_im; - } - out[n][0] = transient_gain[n] * in_re; - out[n][1] = transient_gain[n] * in_im; - } -} - -static void ps_stereo_interpolate_c(float (*l)[2], float (*r)[2], - float h[2][4], float h_step[2][4], - int len) -{ - float h0 = h[0][0]; - float h1 = h[0][1]; - float h2 = h[0][2]; - float h3 = h[0][3]; - float hs0 = h_step[0][0]; - float hs1 = h_step[0][1]; - float hs2 = h_step[0][2]; - float hs3 = h_step[0][3]; - int n; - - for (n = 0; n < len; n++) { - //l is s, r is d - float l_re = l[n][0]; - float l_im = l[n][1]; - float r_re = r[n][0]; - float r_im = r[n][1]; - h0 += hs0; - h1 += hs1; - h2 += hs2; - h3 += hs3; - l[n][0] = h0 * l_re + h2 * r_re; - l[n][1] = h0 * l_im + h2 * r_im; - r[n][0] = h1 * l_re + h3 * r_re; - r[n][1] = h1 * l_im + h3 * r_im; - } -} - -static void ps_stereo_interpolate_ipdopd_c(float (*l)[2], float (*r)[2], - float h[2][4], float h_step[2][4], - int len) -{ - float h00 = h[0][0], h10 = h[1][0]; - float h01 = h[0][1], h11 = h[1][1]; - float h02 = h[0][2], h12 = h[1][2]; - float h03 = h[0][3], h13 = h[1][3]; - float hs00 = h_step[0][0], hs10 = h_step[1][0]; - float hs01 = h_step[0][1], hs11 = h_step[1][1]; - float hs02 = h_step[0][2], hs12 = h_step[1][2]; - float hs03 = h_step[0][3], hs13 = h_step[1][3]; - int n; - - for (n = 0; n < len; n++) { - //l is s, r is d - float l_re = l[n][0]; - float l_im = l[n][1]; - float r_re = r[n][0]; - float r_im = r[n][1]; - h00 += hs00; - h01 += hs01; - h02 += hs02; - h03 += hs03; - h10 += hs10; - h11 += hs11; - h12 += hs12; - h13 += hs13; - - l[n][0] = h00 * l_re + h02 * r_re - h10 * l_im - h12 * r_im; - l[n][1] = h00 * l_im + h02 * r_im + h10 * l_re + h12 * r_re; - r[n][0] = h01 * l_re + h03 * r_re - h11 * l_im - h13 * r_im; - r[n][1] = h01 * l_im + h03 * r_im + h11 * l_re + h13 * r_re; - } -} - -av_cold void ff_psdsp_init(PSDSPContext *s) -{ - s->add_squares = ps_add_squares_c; - s->mul_pair_single = ps_mul_pair_single_c; - s->hybrid_analysis = ps_hybrid_analysis_c; - s->hybrid_analysis_ileave = ps_hybrid_analysis_ileave_c; - s->hybrid_synthesis_deint = ps_hybrid_synthesis_deint_c; - s->decorrelate = ps_decorrelate_c; - s->stereo_interpolate[0] = ps_stereo_interpolate_c; - s->stereo_interpolate[1] = ps_stereo_interpolate_ipdopd_c; - - if (ARCH_ARM) - ff_psdsp_init_arm(s); -} |