diff options
| -rw-r--r-- | libavcodec/Makefile | 2 | ||||
| -rw-r--r-- | libavcodec/aacps.c | 225 | ||||
| -rw-r--r-- | libavcodec/aacps.h | 2 | ||||
| -rw-r--r-- | libavcodec/aacpsdsp.c | 211 | ||||
| -rw-r--r-- | libavcodec/aacpsdsp.h | 52 |
5 files changed, 331 insertions, 161 deletions
diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 657f6a0708..367dc1d646 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -53,7 +53,7 @@ OBJS-$(CONFIG_A64MULTI_ENCODER) += a64multienc.o elbg.o OBJS-$(CONFIG_A64MULTI5_ENCODER) += a64multienc.o elbg.o OBJS-$(CONFIG_AAC_DECODER) += aacdec.o aactab.o aacsbr.o aacps.o \ aacadtsdec.o mpeg4audio.o kbdwin.o \ - sbrdsp.o + sbrdsp.o aacpsdsp.o OBJS-$(CONFIG_AAC_ENCODER) += aacenc.o aaccoder.o \ aacpsy.o aactab.o \ psymodel.o iirfilter.o \ diff --git a/libavcodec/aacps.c b/libavcodec/aacps.c index 6c9dcf2f1b..7578034f82 100644 --- a/libavcodec/aacps.c +++ b/libavcodec/aacps.c @@ -304,26 +304,14 @@ static void hybrid2_re(float (*in)[2], float (*out)[32][2], const float filter[7 } /** Split one subband into 6 subsubbands with a complex filter */ -static void hybrid6_cx(float (*in)[2], float (*out)[32][2], const float (*filter)[7][2], int len) +static void hybrid6_cx(PSDSPContext *dsp, float (*in)[2], float (*out)[32][2], const float (*filter)[7][2], int len) { - int i, j, ssb; + int i; int N = 8; float temp[8][2]; for (i = 0; i < len; i++, in++) { - for (ssb = 0; ssb < N; ssb++) { - float sum_re = filter[ssb][6][0] * in[6][0], sum_im = filter[ssb][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[ssb][j][0] * (in0_re + in1_re) - filter[ssb][j][1] * (in0_im - in1_im); - sum_im += filter[ssb][j][0] * (in0_im + in1_im) + filter[ssb][j][1] * (in0_re - in1_re); - } - temp[ssb][0] = sum_re; - temp[ssb][1] = sum_im; - } + dsp->hybrid_analysis(temp, in, filter, 1, N); out[0][i][0] = temp[6][0]; out[0][i][1] = temp[6][1]; out[1][i][0] = temp[7][0]; @@ -339,28 +327,18 @@ static void hybrid6_cx(float (*in)[2], float (*out)[32][2], const float (*filter } } -static void hybrid4_8_12_cx(float (*in)[2], float (*out)[32][2], const float (*filter)[7][2], int N, int len) +static void hybrid4_8_12_cx(PSDSPContext *dsp, float (*in)[2], float (*out)[32][2], const float (*filter)[7][2], int N, int len) { - int i, j, ssb; + int i; for (i = 0; i < len; i++, in++) { - for (ssb = 0; ssb < N; ssb++) { - float sum_re = filter[ssb][6][0] * in[6][0], sum_im = filter[ssb][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[ssb][j][0] * (in0_re + in1_re) - filter[ssb][j][1] * (in0_im - in1_im); - sum_im += filter[ssb][j][0] * (in0_im + in1_im) + filter[ssb][j][1] * (in0_re - in1_re); - } - out[ssb][i][0] = sum_re; - out[ssb][i][1] = sum_im; - } + dsp->hybrid_analysis(out[0] + i, in, filter, 32, N); } } -static void hybrid_analysis(float out[91][32][2], float in[5][44][2], float L[2][38][64], int is34, int len) +static void hybrid_analysis(PSDSPContext *dsp, float out[91][32][2], + float in[5][44][2], float L[2][38][64], + int is34, int len) { int i, j; for (i = 0; i < 5; i++) { @@ -370,27 +348,17 @@ static void hybrid_analysis(float out[91][32][2], float in[5][44][2], float L[2] } } if (is34) { - hybrid4_8_12_cx(in[0], out, f34_0_12, 12, len); - hybrid4_8_12_cx(in[1], out+12, f34_1_8, 8, len); - hybrid4_8_12_cx(in[2], out+20, f34_2_4, 4, len); - hybrid4_8_12_cx(in[3], out+24, f34_2_4, 4, len); - hybrid4_8_12_cx(in[4], out+28, f34_2_4, 4, len); - for (i = 0; i < 59; i++) { - for (j = 0; j < len; j++) { - out[i+32][j][0] = L[0][j][i+5]; - out[i+32][j][1] = L[1][j][i+5]; - } - } + hybrid4_8_12_cx(dsp, in[0], out, f34_0_12, 12, len); + hybrid4_8_12_cx(dsp, in[1], out+12, f34_1_8, 8, len); + hybrid4_8_12_cx(dsp, in[2], out+20, f34_2_4, 4, len); + hybrid4_8_12_cx(dsp, in[3], out+24, f34_2_4, 4, len); + hybrid4_8_12_cx(dsp, in[4], out+28, f34_2_4, 4, len); + dsp->hybrid_analysis_ileave(out + 27, L, 5, len); } else { - hybrid6_cx(in[0], out, f20_0_8, len); + hybrid6_cx(dsp, in[0], out, f20_0_8, len); hybrid2_re(in[1], out+6, g1_Q2, len, 1); hybrid2_re(in[2], out+8, g1_Q2, len, 0); - for (i = 0; i < 61; i++) { - for (j = 0; j < len; j++) { - out[i+10][j][0] = L[0][j][i+3]; - out[i+10][j][1] = L[1][j][i+3]; - } - } + dsp->hybrid_analysis_ileave(out + 7, L, 3, len); } //update in_buf for (i = 0; i < 5; i++) { @@ -398,7 +366,8 @@ static void hybrid_analysis(float out[91][32][2], float in[5][44][2], float L[2] } } -static void hybrid_synthesis(float out[2][38][64], float in[91][32][2], int is34, int len) +static void hybrid_synthesis(PSDSPContext *dsp, float out[2][38][64], + float in[91][32][2], int is34, int len) { int i, n; if (is34) { @@ -422,12 +391,7 @@ static void hybrid_synthesis(float out[2][38][64], float in[91][32][2], int is34 out[1][n][4] += in[28+i][n][1]; } } - for (i = 0; i < 59; i++) { - for (n = 0; n < len; n++) { - out[0][n][i+5] = in[i+32][n][0]; - out[1][n][i+5] = in[i+32][n][1]; - } - } + dsp->hybrid_synthesis_deint(out, in + 27, 5, len); } else { for (n = 0; n < len; n++) { out[0][n][0] = in[0][n][0] + in[1][n][0] + in[2][n][0] + @@ -439,12 +403,7 @@ static void hybrid_synthesis(float out[2][38][64], float in[91][32][2], int is34 out[0][n][2] = in[8][n][0] + in[9][n][0]; out[1][n][2] = in[8][n][1] + in[9][n][1]; } - for (i = 0; i < 61; i++) { - for (n = 0; n < len; n++) { - out[0][n][i+3] = in[i+10][n][0]; - out[1][n][i+3] = in[i+10][n][1]; - } - } + dsp->hybrid_synthesis_deint(out, in + 7, 3, len); } } @@ -661,10 +620,6 @@ static void decorrelation(PSContext *ps, float (*out)[32][2], const float (*s)[3 const float a_smooth = 0.25f; ///< Smoothing coefficient int i, k, m, n; int n0 = 0, nL = 32; - static const int link_delay[] = { 3, 4, 5 }; - static const float a[] = { 0.65143905753106f, - 0.56471812200776f, - 0.48954165955695f }; if (is34 != ps->is34bands_old) { memset(ps->peak_decay_nrg, 0, sizeof(ps->peak_decay_nrg)); @@ -674,11 +629,9 @@ static void decorrelation(PSContext *ps, float (*out)[32][2], const float (*s)[3 memset(ps->ap_delay, 0, sizeof(ps->ap_delay)); } - for (n = n0; n < nL; n++) { - for (k = 0; k < NR_BANDS[is34]; k++) { - int i = k_to_i[k]; - power[i][n] += s[k][n][0] * s[k][n][0] + s[k][n][1] * s[k][n][1]; - } + for (k = 0; k < NR_BANDS[is34]; k++) { + int i = k_to_i[k]; + ps->dsp.add_squares(power[i], s[k], nL - n0); } //Transient detection @@ -706,54 +659,31 @@ static void decorrelation(PSContext *ps, float (*out)[32][2], const float (*s)[3 for (k = 0; k < NR_ALLPASS_BANDS[is34]; k++) { int b = k_to_i[k]; float g_decay_slope = 1.f - DECAY_SLOPE * (k - DECAY_CUTOFF[is34]); - float ag[PS_AP_LINKS]; g_decay_slope = av_clipf(g_decay_slope, 0.f, 1.f); memcpy(delay[k], delay[k]+nL, PS_MAX_DELAY*sizeof(delay[k][0])); memcpy(delay[k]+PS_MAX_DELAY, s[k], numQMFSlots*sizeof(delay[k][0])); for (m = 0; m < PS_AP_LINKS; m++) { memcpy(ap_delay[k][m], ap_delay[k][m]+numQMFSlots, 5*sizeof(ap_delay[k][m][0])); - ag[m] = a[m] * g_decay_slope; - } - for (n = n0; n < nL; n++) { - float in_re = delay[k][n+PS_MAX_DELAY-2][0] * phi_fract[is34][k][0] - - delay[k][n+PS_MAX_DELAY-2][1] * phi_fract[is34][k][1]; - float in_im = delay[k][n+PS_MAX_DELAY-2][0] * phi_fract[is34][k][1] + - delay[k][n+PS_MAX_DELAY-2][1] * phi_fract[is34][k][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[k][m][n+5-link_delay[m]][0]; - float link_delay_im = ap_delay[k][m][n+5-link_delay[m]][1]; - float fractional_delay_re = Q_fract_allpass[is34][k][m][0]; - float fractional_delay_im = Q_fract_allpass[is34][k][m][1]; - ap_delay[k][m][n+5][0] = in_re; - ap_delay[k][m][n+5][1] = 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[k][m][n+5][0] += ag[m] * in_re; - ap_delay[k][m][n+5][1] += ag[m] * in_im; - } - out[k][n][0] = transient_gain[b][n] * in_re; - out[k][n][1] = transient_gain[b][n] * in_im; } + ps->dsp.decorrelate(out[k], delay[k] + PS_MAX_DELAY - 2, ap_delay[k], + phi_fract[is34][k], Q_fract_allpass[is34][k], + transient_gain[b], g_decay_slope, nL - n0); } for (; k < SHORT_DELAY_BAND[is34]; k++) { + int i = k_to_i[k]; memcpy(delay[k], delay[k]+nL, PS_MAX_DELAY*sizeof(delay[k][0])); memcpy(delay[k]+PS_MAX_DELAY, s[k], numQMFSlots*sizeof(delay[k][0])); - for (n = n0; n < nL; n++) { - //H = delay 14 - out[k][n][0] = transient_gain[k_to_i[k]][n] * delay[k][n+PS_MAX_DELAY-14][0]; - out[k][n][1] = transient_gain[k_to_i[k]][n] * delay[k][n+PS_MAX_DELAY-14][1]; - } + //H = delay 14 + ps->dsp.mul_pair_single(out[k], delay[k] + PS_MAX_DELAY - 14, + transient_gain[i], nL - n0); } for (; k < NR_BANDS[is34]; k++) { + int i = k_to_i[k]; memcpy(delay[k], delay[k]+nL, PS_MAX_DELAY*sizeof(delay[k][0])); memcpy(delay[k]+PS_MAX_DELAY, s[k], numQMFSlots*sizeof(delay[k][0])); - for (n = n0; n < nL; n++) { - //H = delay 1 - out[k][n][0] = transient_gain[k_to_i[k]][n] * delay[k][n+PS_MAX_DELAY-1][0]; - out[k][n][1] = transient_gain[k_to_i[k]][n] * delay[k][n+PS_MAX_DELAY-1][1]; - } + //H = delay 1 + ps->dsp.mul_pair_single(out[k], delay[k] + PS_MAX_DELAY - 1, + transient_gain[i], nL - n0); } } @@ -797,7 +727,7 @@ static void remap20(int8_t (**p_par_mapped)[PS_MAX_NR_IIDICC], static void stereo_processing(PSContext *ps, float (*l)[32][2], float (*r)[32][2], int is34) { - int e, b, k, n; + int e, b, k; float (*H11)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H11; float (*H12)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H12; @@ -909,70 +839,44 @@ static void stereo_processing(PSContext *ps, float (*l)[32][2], float (*r)[32][2 H22[0][e+1][b] = h22; } for (k = 0; k < NR_BANDS[is34]; k++) { - float h11r, h12r, h21r, h22r; - float h11i, h12i, h21i, h22i; - float h11r_step, h12r_step, h21r_step, h22r_step; - float h11i_step, h12i_step, h21i_step, h22i_step; + float h[2][4]; + float h_step[2][4]; int start = ps->border_position[e]; int stop = ps->border_position[e+1]; float width = 1.f / (stop - start); b = k_to_i[k]; - h11r = H11[0][e][b]; - h12r = H12[0][e][b]; - h21r = H21[0][e][b]; - h22r = H22[0][e][b]; + h[0][0] = H11[0][e][b]; + h[0][1] = H12[0][e][b]; + h[0][2] = H21[0][e][b]; + h[0][3] = H22[0][e][b]; if (!PS_BASELINE && ps->enable_ipdopd) { //Is this necessary? ps_04_new seems unchanged if ((is34 && k <= 13 && k >= 9) || (!is34 && k <= 1)) { - h11i = -H11[1][e][b]; - h12i = -H12[1][e][b]; - h21i = -H21[1][e][b]; - h22i = -H22[1][e][b]; + h[1][0] = -H11[1][e][b]; + h[1][1] = -H12[1][e][b]; + h[1][2] = -H21[1][e][b]; + h[1][3] = -H22[1][e][b]; } else { - h11i = H11[1][e][b]; - h12i = H12[1][e][b]; - h21i = H21[1][e][b]; - h22i = H22[1][e][b]; + h[1][0] = H11[1][e][b]; + h[1][1] = H12[1][e][b]; + h[1][2] = H21[1][e][b]; + h[1][3] = H22[1][e][b]; } } //Interpolation - h11r_step = (H11[0][e+1][b] - h11r) * width; - h12r_step = (H12[0][e+1][b] - h12r) * width; - h21r_step = (H21[0][e+1][b] - h21r) * width; - h22r_step = (H22[0][e+1][b] - h22r) * width; + h_step[0][0] = (H11[0][e+1][b] - h[0][0]) * width; + h_step[0][1] = (H12[0][e+1][b] - h[0][1]) * width; + h_step[0][2] = (H21[0][e+1][b] - h[0][2]) * width; + h_step[0][3] = (H22[0][e+1][b] - h[0][3]) * width; if (!PS_BASELINE && ps->enable_ipdopd) { - h11i_step = (H11[1][e+1][b] - h11i) * width; - h12i_step = (H12[1][e+1][b] - h12i) * width; - h21i_step = (H21[1][e+1][b] - h21i) * width; - h22i_step = (H22[1][e+1][b] - h22i) * width; - } - for (n = start + 1; n <= stop; n++) { - //l is s, r is d - float l_re = l[k][n][0]; - float l_im = l[k][n][1]; - float r_re = r[k][n][0]; - float r_im = r[k][n][1]; - h11r += h11r_step; - h12r += h12r_step; - h21r += h21r_step; - h22r += h22r_step; - if (!PS_BASELINE && ps->enable_ipdopd) { - h11i += h11i_step; - h12i += h12i_step; - h21i += h21i_step; - h22i += h22i_step; - - l[k][n][0] = h11r*l_re + h21r*r_re - h11i*l_im - h21i*r_im; - l[k][n][1] = h11r*l_im + h21r*r_im + h11i*l_re + h21i*r_re; - r[k][n][0] = h12r*l_re + h22r*r_re - h12i*l_im - h22i*r_im; - r[k][n][1] = h12r*l_im + h22r*r_im + h12i*l_re + h22i*r_re; - } else { - l[k][n][0] = h11r*l_re + h21r*r_re; - l[k][n][1] = h11r*l_im + h21r*r_im; - r[k][n][0] = h12r*l_re + h22r*r_re; - r[k][n][1] = h12r*l_im + h22r*r_im; - } + h_step[1][0] = (H11[1][e+1][b] - h[1][0]) * width; + h_step[1][1] = (H12[1][e+1][b] - h[1][1]) * width; + h_step[1][2] = (H21[1][e+1][b] - h[1][2]) * width; + h_step[1][3] = (H22[1][e+1][b] - h[1][3]) * width; } + ps->dsp.stereo_interpolate[!PS_BASELINE && ps->enable_ipdopd]( + l[k] + start + 1, r[k] + start + 1, + h, h_step, stop - start); } } } @@ -989,11 +893,11 @@ int ff_ps_apply(AVCodecContext *avctx, PSContext *ps, float L[2][38][64], float if (top < NR_ALLPASS_BANDS[is34]) memset(ps->ap_delay + top, 0, (NR_ALLPASS_BANDS[is34] - top)*sizeof(ps->ap_delay[0])); - hybrid_analysis(Lbuf, ps->in_buf, L, is34, len); + hybrid_analysis(&ps->dsp, Lbuf, ps->in_buf, L, is34, len); decorrelation(ps, Rbuf, Lbuf, is34); stereo_processing(ps, Lbuf, Rbuf, is34); - hybrid_synthesis(L, Lbuf, is34, len); - hybrid_synthesis(R, Rbuf, is34, len); + hybrid_synthesis(&ps->dsp, L, Lbuf, is34, len); + hybrid_synthesis(&ps->dsp, R, Rbuf, is34, len); return 0; } @@ -1041,4 +945,5 @@ av_cold void ff_ps_init(void) { av_cold void ff_ps_ctx_init(PSContext *ps) { + ff_psdsp_init(&ps->dsp); } diff --git a/libavcodec/aacps.h b/libavcodec/aacps.h index 124fbee221..d5c355d5bd 100644 --- a/libavcodec/aacps.h +++ b/libavcodec/aacps.h @@ -24,6 +24,7 @@ #include <stdint.h> +#include "aacpsdsp.h" #include "avcodec.h" #include "get_bits.h" @@ -72,6 +73,7 @@ typedef struct { float H22[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC]; int8_t opd_hist[PS_MAX_NR_IIDICC]; int8_t ipd_hist[PS_MAX_NR_IIDICC]; + PSDSPContext dsp; } PSContext; void ff_ps_init(void); diff --git a/libavcodec/aacpsdsp.c b/libavcodec/aacpsdsp.c new file mode 100644 index 0000000000..3d9eb61fd6 --- /dev/null +++ b/libavcodec/aacpsdsp.c @@ -0,0 +1,211 @@ +/* + * 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)[7][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], 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; +} diff --git a/libavcodec/aacpsdsp.h b/libavcodec/aacpsdsp.h new file mode 100644 index 0000000000..909d3418f2 --- /dev/null +++ b/libavcodec/aacpsdsp.h @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2012 Mans Rullgard + * + * 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 + */ + +#ifndef LIBAVCODEC_AACPSDSP_H +#define LIBAVCODEC_AACPSDSP_H + +#define PS_QMF_TIME_SLOTS 32 +#define PS_AP_LINKS 3 +#define PS_MAX_AP_DELAY 5 + +typedef struct PSDSPContext { + void (*add_squares)(float *dst, const float (*src)[2], int n); + void (*mul_pair_single)(float (*dst)[2], float (*src0)[2], float *src1, + int n); + void (*hybrid_analysis)(float (*out)[2], float (*in)[2], + const float (*filter)[7][2], + int stride, int n); + void (*hybrid_analysis_ileave)(float (*out)[32][2], float L[2][38][64], + int i, int len); + void (*hybrid_synthesis_deint)(float out[2][38][64], float (*in)[32][2], + int i, int len); + 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); + void (*stereo_interpolate[2])(float (*l)[2], float (*r)[2], + float h[2][4], float h_step[2][4], + int len); +} PSDSPContext; + +void ff_psdsp_init(PSDSPContext *s); + +#endif /* LIBAVCODEC_AACPSDSP_H */ |