| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * MPEG-4 Parametric Stereo decoding functions | ||
| 3 | * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com> | ||
| 4 | * | ||
| 5 | * This file is part of FFmpeg. | ||
| 6 | * | ||
| 7 | * FFmpeg is free software; you can redistribute it and/or | ||
| 8 | * modify it under the terms of the GNU Lesser General Public | ||
| 9 | * License as published by the Free Software Foundation; either | ||
| 10 | * version 2.1 of the License, or (at your option) any later version. | ||
| 11 | * | ||
| 12 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 15 | * Lesser General Public License for more details. | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU Lesser General Public | ||
| 18 | * License along with FFmpeg; if not, write to the Free Software | ||
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 20 | * | ||
| 21 | * Note: Rounding-to-nearest used unless otherwise stated | ||
| 22 | * | ||
| 23 | */ | ||
| 24 | |||
| 25 | #include <stdint.h> | ||
| 26 | #include "libavutil/common.h" | ||
| 27 | #include "libavutil/mathematics.h" | ||
| 28 | #include "libavutil/mem_internal.h" | ||
| 29 | #include "aacps.h" | ||
| 30 | #if USE_FIXED | ||
| 31 | #include "aacps_fixed_tablegen.h" | ||
| 32 | #else | ||
| 33 | #include "libavutil/internal.h" | ||
| 34 | #include "aacps_tablegen.h" | ||
| 35 | #endif /* USE_FIXED */ | ||
| 36 | |||
| 37 | static const INTFLOAT g1_Q2[] = { | ||
| 38 | Q31(0.0f), Q31(0.01899487526049f), Q31(0.0f), Q31(-0.07293139167538f), | ||
| 39 | Q31(0.0f), Q31(0.30596630545168f), Q31(0.5f) | ||
| 40 | }; | ||
| 41 | |||
| 42 | 3 | static void ipdopd_reset(int8_t *ipd_hist, int8_t *opd_hist) | |
| 43 | { | ||
| 44 | int i; | ||
| 45 |
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54 | for (i = 0; i < PS_MAX_NR_IPDOPD; i++) { |
| 46 | 51 | opd_hist[i] = 0; | |
| 47 | 51 | ipd_hist[i] = 0; | |
| 48 | } | ||
| 49 | 3 | } | |
| 50 | |||
| 51 | /** Split one subband into 2 subsubbands with a symmetric real filter. | ||
| 52 | * The filter must have its non-center even coefficients equal to zero. */ | ||
| 53 | 3028 | static void hybrid2_re(INTFLOAT (*in)[2], INTFLOAT (*out)[32][2], | |
| 54 | const INTFLOAT filter[7], int len, int reverse) | ||
| 55 | { | ||
| 56 | int i, j; | ||
| 57 |
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99924 | for (i = 0; i < len; i++, in++) { |
| 58 | 96896 | INT64FLOAT re_in = AAC_MUL31(filter[6], in[6][0]); //real inphase | |
| 59 | 96896 | INT64FLOAT re_op = 0.0f; //real out of phase | |
| 60 | 96896 | INT64FLOAT im_in = AAC_MUL31(filter[6], in[6][1]); //imag inphase | |
| 61 | 96896 | INT64FLOAT im_op = 0.0f; //imag out of phase | |
| 62 |
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387584 | for (j = 0; j < 6; j += 2) { |
| 63 | 290688 | re_op += (INT64FLOAT)filter[j+1] * (in[j+1][0] + in[12-j-1][0]); | |
| 64 | 290688 | im_op += (INT64FLOAT)filter[j+1] * (in[j+1][1] + in[12-j-1][1]); | |
| 65 | } | ||
| 66 | |||
| 67 | #if USE_FIXED | ||
| 68 | ✗ | re_op = (re_op + 0x40000000) >> 31; | |
| 69 | ✗ | im_op = (im_op + 0x40000000) >> 31; | |
| 70 | #endif /* USE_FIXED */ | ||
| 71 | |||
| 72 | 96896 | out[ reverse][i][0] = (INTFLOAT)(re_in + re_op); | |
| 73 | 96896 | out[ reverse][i][1] = (INTFLOAT)(im_in + im_op); | |
| 74 |
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96896 | out[!reverse][i][0] = (INTFLOAT)(re_in - re_op); |
| 75 |
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96896 | out[!reverse][i][1] = (INTFLOAT)(im_in - im_op); |
| 76 | } | ||
| 77 | 3028 | } | |
| 78 | |||
| 79 | /** Split one subband into 6 subsubbands with a complex filter */ | ||
| 80 | 1514 | static void hybrid6_cx(PSDSPContext *dsp, INTFLOAT (*in)[2], INTFLOAT (*out)[32][2], | |
| 81 | TABLE_CONST INTFLOAT (*filter)[8][2], int len) | ||
| 82 | { | ||
| 83 | int i; | ||
| 84 | 1514 | int N = 8; | |
| 85 | 1514 | LOCAL_ALIGNED_16(INTFLOAT, temp, [8], [2]); | |
| 86 | |||
| 87 |
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49962 | for (i = 0; i < len; i++, in++) { |
| 88 | 48448 | dsp->hybrid_analysis(temp, in, (const INTFLOAT (*)[8][2]) filter, 1, N); | |
| 89 | 48448 | out[0][i][0] = temp[6][0]; | |
| 90 | 48448 | out[0][i][1] = temp[6][1]; | |
| 91 | 48448 | out[1][i][0] = temp[7][0]; | |
| 92 | 48448 | out[1][i][1] = temp[7][1]; | |
| 93 | 48448 | out[2][i][0] = temp[0][0]; | |
| 94 | 48448 | out[2][i][1] = temp[0][1]; | |
| 95 | 48448 | out[3][i][0] = temp[1][0]; | |
| 96 | 48448 | out[3][i][1] = temp[1][1]; | |
| 97 | 48448 | out[4][i][0] = temp[2][0] + temp[5][0]; | |
| 98 | 48448 | out[4][i][1] = temp[2][1] + temp[5][1]; | |
| 99 | 48448 | out[5][i][0] = temp[3][0] + temp[4][0]; | |
| 100 | 48448 | out[5][i][1] = temp[3][1] + temp[4][1]; | |
| 101 | } | ||
| 102 | 1514 | } | |
| 103 | |||
| 104 | 510 | static void hybrid4_8_12_cx(PSDSPContext *dsp, | |
| 105 | INTFLOAT (*in)[2], INTFLOAT (*out)[32][2], | ||
| 106 | TABLE_CONST INTFLOAT (*filter)[8][2], int N, int len) | ||
| 107 | { | ||
| 108 | int i; | ||
| 109 | |||
| 110 |
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16830 | for (i = 0; i < len; i++, in++) { |
| 111 | 16320 | dsp->hybrid_analysis(out[0] + i, in, (const INTFLOAT (*)[8][2]) filter, 32, N); | |
| 112 | } | ||
| 113 | 510 | } | |
| 114 | |||
| 115 | 1616 | static void hybrid_analysis(PSDSPContext *dsp, INTFLOAT out[91][32][2], | |
| 116 | INTFLOAT in[5][44][2], INTFLOAT L[2][38][64], | ||
| 117 | int is34, int len) | ||
| 118 | { | ||
| 119 | int i, j; | ||
| 120 |
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9696 | for (i = 0; i < 5; i++) { |
| 121 |
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315120 | for (j = 0; j < 38; j++) { |
| 122 | 307040 | in[i][j+6][0] = L[0][j][i]; | |
| 123 | 307040 | in[i][j+6][1] = L[1][j][i]; | |
| 124 | } | ||
| 125 | } | ||
| 126 |
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1616 | if (is34) { |
| 127 | 102 | hybrid4_8_12_cx(dsp, in[0], out, f34_0_12, 12, len); | |
| 128 | 102 | hybrid4_8_12_cx(dsp, in[1], out+12, f34_1_8, 8, len); | |
| 129 | 102 | hybrid4_8_12_cx(dsp, in[2], out+20, f34_2_4, 4, len); | |
| 130 | 102 | hybrid4_8_12_cx(dsp, in[3], out+24, f34_2_4, 4, len); | |
| 131 | 102 | hybrid4_8_12_cx(dsp, in[4], out+28, f34_2_4, 4, len); | |
| 132 | 102 | dsp->hybrid_analysis_ileave(out + 27, L, 5, len); | |
| 133 | } else { | ||
| 134 | 1514 | hybrid6_cx(dsp, in[0], out, f20_0_8, len); | |
| 135 | 1514 | hybrid2_re(in[1], out+6, g1_Q2, len, 1); | |
| 136 | 1514 | hybrid2_re(in[2], out+8, g1_Q2, len, 0); | |
| 137 | 1514 | dsp->hybrid_analysis_ileave(out + 7, L, 3, len); | |
| 138 | } | ||
| 139 | //update in_buf | ||
| 140 |
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9696 | for (i = 0; i < 5; i++) { |
| 141 | 8080 | memcpy(in[i], in[i]+32, 6 * sizeof(in[i][0])); | |
| 142 | } | ||
| 143 | 1616 | } | |
| 144 | |||
| 145 | 3232 | static void hybrid_synthesis(PSDSPContext *dsp, INTFLOAT out[2][38][64], | |
| 146 | INTFLOAT in[91][32][2], int is34, int len) | ||
| 147 | { | ||
| 148 | int i, n; | ||
| 149 |
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3232 | if (is34) { |
| 150 |
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6732 | for (n = 0; n < len; n++) { |
| 151 | 6528 | memset(out[0][n], 0, 5*sizeof(out[0][n][0])); | |
| 152 | 6528 | memset(out[1][n], 0, 5*sizeof(out[1][n][0])); | |
| 153 |
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84864 | for (i = 0; i < 12; i++) { |
| 154 | 78336 | out[0][n][0] += (UINTFLOAT)in[ i][n][0]; | |
| 155 | 78336 | out[1][n][0] += (UINTFLOAT)in[ i][n][1]; | |
| 156 | } | ||
| 157 |
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58752 | for (i = 0; i < 8; i++) { |
| 158 | 52224 | out[0][n][1] += (UINTFLOAT)in[12+i][n][0]; | |
| 159 | 52224 | out[1][n][1] += (UINTFLOAT)in[12+i][n][1]; | |
| 160 | } | ||
| 161 |
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32640 | for (i = 0; i < 4; i++) { |
| 162 | 26112 | out[0][n][2] += (UINTFLOAT)in[20+i][n][0]; | |
| 163 | 26112 | out[1][n][2] += (UINTFLOAT)in[20+i][n][1]; | |
| 164 | 26112 | out[0][n][3] += (UINTFLOAT)in[24+i][n][0]; | |
| 165 | 26112 | out[1][n][3] += (UINTFLOAT)in[24+i][n][1]; | |
| 166 | 26112 | out[0][n][4] += (UINTFLOAT)in[28+i][n][0]; | |
| 167 | 26112 | out[1][n][4] += (UINTFLOAT)in[28+i][n][1]; | |
| 168 | } | ||
| 169 | } | ||
| 170 | 204 | dsp->hybrid_synthesis_deint(out, in + 27, 5, len); | |
| 171 | } else { | ||
| 172 |
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99924 | for (n = 0; n < len; n++) { |
| 173 | 96896 | out[0][n][0] = (UINTFLOAT)in[0][n][0] + in[1][n][0] + in[2][n][0] + | |
| 174 | 96896 | (UINTFLOAT)in[3][n][0] + in[4][n][0] + in[5][n][0]; | |
| 175 | 96896 | out[1][n][0] = (UINTFLOAT)in[0][n][1] + in[1][n][1] + in[2][n][1] + | |
| 176 | 96896 | (UINTFLOAT)in[3][n][1] + in[4][n][1] + in[5][n][1]; | |
| 177 | 96896 | out[0][n][1] = (UINTFLOAT)in[6][n][0] + in[7][n][0]; | |
| 178 | 96896 | out[1][n][1] = (UINTFLOAT)in[6][n][1] + in[7][n][1]; | |
| 179 | 96896 | out[0][n][2] = (UINTFLOAT)in[8][n][0] + in[9][n][0]; | |
| 180 | 96896 | out[1][n][2] = (UINTFLOAT)in[8][n][1] + in[9][n][1]; | |
| 181 | } | ||
| 182 | 3028 | dsp->hybrid_synthesis_deint(out, in + 7, 3, len); | |
| 183 | } | ||
| 184 | 3232 | } | |
| 185 | |||
| 186 | /// All-pass filter decay slope | ||
| 187 | #define DECAY_SLOPE Q30(0.05f) | ||
| 188 | /// Number of frequency bands that can be addressed by the parameter index, b(k) | ||
| 189 | static const int NR_PAR_BANDS[] = { 20, 34 }; | ||
| 190 | static const int NR_IPDOPD_BANDS[] = { 11, 17 }; | ||
| 191 | /// Number of frequency bands that can be addressed by the sub subband index, k | ||
| 192 | static const int NR_BANDS[] = { 71, 91 }; | ||
| 193 | /// Start frequency band for the all-pass filter decay slope | ||
| 194 | static const int DECAY_CUTOFF[] = { 10, 32 }; | ||
| 195 | /// Number of all-pass filer bands | ||
| 196 | static const int NR_ALLPASS_BANDS[] = { 30, 50 }; | ||
| 197 | /// First stereo band using the short one sample delay | ||
| 198 | static const int SHORT_DELAY_BAND[] = { 42, 62 }; | ||
| 199 | |||
| 200 | /** Table 8.46 */ | ||
| 201 | 1 | static void map_idx_10_to_20(int8_t *par_mapped, const int8_t *par, int full) | |
| 202 | { | ||
| 203 | int b; | ||
| 204 |
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1 | if (full) |
| 205 | 1 | b = 9; | |
| 206 | else { | ||
| 207 | ✗ | b = 4; | |
| 208 | ✗ | par_mapped[10] = 0; | |
| 209 | } | ||
| 210 |
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11 | for (; b >= 0; b--) { |
| 211 | 10 | par_mapped[2*b+1] = par_mapped[2*b] = par[b]; | |
| 212 | } | ||
| 213 | 1 | } | |
| 214 | |||
| 215 | 1 | static void map_idx_34_to_20(int8_t *par_mapped, const int8_t *par, int full) | |
| 216 | { | ||
| 217 | 1 | par_mapped[ 0] = (2*par[ 0] + par[ 1]) / 3; | |
| 218 | 1 | par_mapped[ 1] = ( par[ 1] + 2*par[ 2]) / 3; | |
| 219 | 1 | par_mapped[ 2] = (2*par[ 3] + par[ 4]) / 3; | |
| 220 | 1 | par_mapped[ 3] = ( par[ 4] + 2*par[ 5]) / 3; | |
| 221 | 1 | par_mapped[ 4] = ( par[ 6] + par[ 7]) / 2; | |
| 222 | 1 | par_mapped[ 5] = ( par[ 8] + par[ 9]) / 2; | |
| 223 | 1 | par_mapped[ 6] = par[10]; | |
| 224 | 1 | par_mapped[ 7] = par[11]; | |
| 225 | 1 | par_mapped[ 8] = ( par[12] + par[13]) / 2; | |
| 226 | 1 | par_mapped[ 9] = ( par[14] + par[15]) / 2; | |
| 227 | 1 | par_mapped[10] = par[16]; | |
| 228 |
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1 | if (full) { |
| 229 | 1 | par_mapped[11] = par[17]; | |
| 230 | 1 | par_mapped[12] = par[18]; | |
| 231 | 1 | par_mapped[13] = par[19]; | |
| 232 | 1 | par_mapped[14] = ( par[20] + par[21]) / 2; | |
| 233 | 1 | par_mapped[15] = ( par[22] + par[23]) / 2; | |
| 234 | 1 | par_mapped[16] = ( par[24] + par[25]) / 2; | |
| 235 | 1 | par_mapped[17] = ( par[26] + par[27]) / 2; | |
| 236 | 1 | par_mapped[18] = ( par[28] + par[29] + par[30] + par[31]) / 4; | |
| 237 | 1 | par_mapped[19] = ( par[32] + par[33]) / 2; | |
| 238 | } | ||
| 239 | 1 | } | |
| 240 | |||
| 241 | 8 | static void map_val_34_to_20(INTFLOAT par[PS_MAX_NR_IIDICC]) | |
| 242 | { | ||
| 243 | #if USE_FIXED | ||
| 244 | ✗ | par[ 0] = (int)(((int64_t)(par[ 0] + (unsigned)(par[ 1]>>1)) * 1431655765 + \ | |
| 245 | ✗ | 0x40000000) >> 31); | |
| 246 | ✗ | par[ 1] = (int)(((int64_t)((par[ 1]>>1) + (unsigned)par[ 2]) * 1431655765 + \ | |
| 247 | ✗ | 0x40000000) >> 31); | |
| 248 | ✗ | par[ 2] = (int)(((int64_t)(par[ 3] + (unsigned)(par[ 4]>>1)) * 1431655765 + \ | |
| 249 | ✗ | 0x40000000) >> 31); | |
| 250 | ✗ | par[ 3] = (int)(((int64_t)((par[ 4]>>1) + (unsigned)par[ 5]) * 1431655765 + \ | |
| 251 | ✗ | 0x40000000) >> 31); | |
| 252 | #else | ||
| 253 | 8 | par[ 0] = (2*par[ 0] + par[ 1]) * 0.33333333f; | |
| 254 | 8 | par[ 1] = ( par[ 1] + 2*par[ 2]) * 0.33333333f; | |
| 255 | 8 | par[ 2] = (2*par[ 3] + par[ 4]) * 0.33333333f; | |
| 256 | 8 | par[ 3] = ( par[ 4] + 2*par[ 5]) * 0.33333333f; | |
| 257 | #endif /* USE_FIXED */ | ||
| 258 | 8 | par[ 4] = AAC_HALF_SUM(par[ 6], par[ 7]); | |
| 259 | 8 | par[ 5] = AAC_HALF_SUM(par[ 8], par[ 9]); | |
| 260 | 8 | par[ 6] = par[10]; | |
| 261 | 8 | par[ 7] = par[11]; | |
| 262 | 8 | par[ 8] = AAC_HALF_SUM(par[12], par[13]); | |
| 263 | 8 | par[ 9] = AAC_HALF_SUM(par[14], par[15]); | |
| 264 | 8 | par[10] = par[16]; | |
| 265 | 8 | par[11] = par[17]; | |
| 266 | 8 | par[12] = par[18]; | |
| 267 | 8 | par[13] = par[19]; | |
| 268 | 8 | par[14] = AAC_HALF_SUM(par[20], par[21]); | |
| 269 | 8 | par[15] = AAC_HALF_SUM(par[22], par[23]); | |
| 270 | 8 | par[16] = AAC_HALF_SUM(par[24], par[25]); | |
| 271 | 8 | par[17] = AAC_HALF_SUM(par[26], par[27]); | |
| 272 | #if USE_FIXED | ||
| 273 | ✗ | par[18] = (((par[28]+2)>>2) + ((par[29]+2)>>2) + ((par[30]+2)>>2) + ((par[31]+2)>>2)); | |
| 274 | #else | ||
| 275 | 8 | par[18] = ( par[28] + par[29] + par[30] + par[31]) * 0.25f; | |
| 276 | #endif /* USE_FIXED */ | ||
| 277 | 8 | par[19] = AAC_HALF_SUM(par[32], par[33]); | |
| 278 | 8 | } | |
| 279 | |||
| 280 | 204 | static void map_idx_10_to_34(int8_t *par_mapped, const int8_t *par, int full) | |
| 281 | { | ||
| 282 |
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204 | if (full) { |
| 283 | 204 | par_mapped[33] = par[9]; | |
| 284 | 204 | par_mapped[32] = par[9]; | |
| 285 | 204 | par_mapped[31] = par[9]; | |
| 286 | 204 | par_mapped[30] = par[9]; | |
| 287 | 204 | par_mapped[29] = par[9]; | |
| 288 | 204 | par_mapped[28] = par[9]; | |
| 289 | 204 | par_mapped[27] = par[8]; | |
| 290 | 204 | par_mapped[26] = par[8]; | |
| 291 | 204 | par_mapped[25] = par[8]; | |
| 292 | 204 | par_mapped[24] = par[8]; | |
| 293 | 204 | par_mapped[23] = par[7]; | |
| 294 | 204 | par_mapped[22] = par[7]; | |
| 295 | 204 | par_mapped[21] = par[7]; | |
| 296 | 204 | par_mapped[20] = par[7]; | |
| 297 | 204 | par_mapped[19] = par[6]; | |
| 298 | 204 | par_mapped[18] = par[6]; | |
| 299 | 204 | par_mapped[17] = par[5]; | |
| 300 | 204 | par_mapped[16] = par[5]; | |
| 301 | } else { | ||
| 302 | ✗ | par_mapped[16] = 0; | |
| 303 | } | ||
| 304 | 204 | par_mapped[15] = par[4]; | |
| 305 | 204 | par_mapped[14] = par[4]; | |
| 306 | 204 | par_mapped[13] = par[4]; | |
| 307 | 204 | par_mapped[12] = par[4]; | |
| 308 | 204 | par_mapped[11] = par[3]; | |
| 309 | 204 | par_mapped[10] = par[3]; | |
| 310 | 204 | par_mapped[ 9] = par[2]; | |
| 311 | 204 | par_mapped[ 8] = par[2]; | |
| 312 | 204 | par_mapped[ 7] = par[2]; | |
| 313 | 204 | par_mapped[ 6] = par[2]; | |
| 314 | 204 | par_mapped[ 5] = par[1]; | |
| 315 | 204 | par_mapped[ 4] = par[1]; | |
| 316 | 204 | par_mapped[ 3] = par[1]; | |
| 317 | 204 | par_mapped[ 2] = par[0]; | |
| 318 | 204 | par_mapped[ 1] = par[0]; | |
| 319 | 204 | par_mapped[ 0] = par[0]; | |
| 320 | 204 | } | |
| 321 | |||
| 322 | ✗ | static void map_idx_20_to_34(int8_t *par_mapped, const int8_t *par, int full) | |
| 323 | { | ||
| 324 | ✗ | if (full) { | |
| 325 | ✗ | par_mapped[33] = par[19]; | |
| 326 | ✗ | par_mapped[32] = par[19]; | |
| 327 | ✗ | par_mapped[31] = par[18]; | |
| 328 | ✗ | par_mapped[30] = par[18]; | |
| 329 | ✗ | par_mapped[29] = par[18]; | |
| 330 | ✗ | par_mapped[28] = par[18]; | |
| 331 | ✗ | par_mapped[27] = par[17]; | |
| 332 | ✗ | par_mapped[26] = par[17]; | |
| 333 | ✗ | par_mapped[25] = par[16]; | |
| 334 | ✗ | par_mapped[24] = par[16]; | |
| 335 | ✗ | par_mapped[23] = par[15]; | |
| 336 | ✗ | par_mapped[22] = par[15]; | |
| 337 | ✗ | par_mapped[21] = par[14]; | |
| 338 | ✗ | par_mapped[20] = par[14]; | |
| 339 | ✗ | par_mapped[19] = par[13]; | |
| 340 | ✗ | par_mapped[18] = par[12]; | |
| 341 | ✗ | par_mapped[17] = par[11]; | |
| 342 | } | ||
| 343 | ✗ | par_mapped[16] = par[10]; | |
| 344 | ✗ | par_mapped[15] = par[ 9]; | |
| 345 | ✗ | par_mapped[14] = par[ 9]; | |
| 346 | ✗ | par_mapped[13] = par[ 8]; | |
| 347 | ✗ | par_mapped[12] = par[ 8]; | |
| 348 | ✗ | par_mapped[11] = par[ 7]; | |
| 349 | ✗ | par_mapped[10] = par[ 6]; | |
| 350 | ✗ | par_mapped[ 9] = par[ 5]; | |
| 351 | ✗ | par_mapped[ 8] = par[ 5]; | |
| 352 | ✗ | par_mapped[ 7] = par[ 4]; | |
| 353 | ✗ | par_mapped[ 6] = par[ 4]; | |
| 354 | ✗ | par_mapped[ 5] = par[ 3]; | |
| 355 | ✗ | par_mapped[ 4] = (par[ 2] + par[ 3]) / 2; | |
| 356 | ✗ | par_mapped[ 3] = par[ 2]; | |
| 357 | ✗ | par_mapped[ 2] = par[ 1]; | |
| 358 | ✗ | par_mapped[ 1] = (par[ 0] + par[ 1]) / 2; | |
| 359 | ✗ | par_mapped[ 0] = par[ 0]; | |
| 360 | ✗ | } | |
| 361 | |||
| 362 | 16 | static void map_val_20_to_34(INTFLOAT par[PS_MAX_NR_IIDICC]) | |
| 363 | { | ||
| 364 | 16 | par[33] = par[19]; | |
| 365 | 16 | par[32] = par[19]; | |
| 366 | 16 | par[31] = par[18]; | |
| 367 | 16 | par[30] = par[18]; | |
| 368 | 16 | par[29] = par[18]; | |
| 369 | 16 | par[28] = par[18]; | |
| 370 | 16 | par[27] = par[17]; | |
| 371 | 16 | par[26] = par[17]; | |
| 372 | 16 | par[25] = par[16]; | |
| 373 | 16 | par[24] = par[16]; | |
| 374 | 16 | par[23] = par[15]; | |
| 375 | 16 | par[22] = par[15]; | |
| 376 | 16 | par[21] = par[14]; | |
| 377 | 16 | par[20] = par[14]; | |
| 378 | 16 | par[19] = par[13]; | |
| 379 | 16 | par[18] = par[12]; | |
| 380 | 16 | par[17] = par[11]; | |
| 381 | 16 | par[16] = par[10]; | |
| 382 | 16 | par[15] = par[ 9]; | |
| 383 | 16 | par[14] = par[ 9]; | |
| 384 | 16 | par[13] = par[ 8]; | |
| 385 | 16 | par[12] = par[ 8]; | |
| 386 | 16 | par[11] = par[ 7]; | |
| 387 | 16 | par[10] = par[ 6]; | |
| 388 | 16 | par[ 9] = par[ 5]; | |
| 389 | 16 | par[ 8] = par[ 5]; | |
| 390 | 16 | par[ 7] = par[ 4]; | |
| 391 | 16 | par[ 6] = par[ 4]; | |
| 392 | 16 | par[ 5] = par[ 3]; | |
| 393 | 16 | par[ 4] = AAC_HALF_SUM(par[ 2], par[ 3]); | |
| 394 | 16 | par[ 3] = par[ 2]; | |
| 395 | 16 | par[ 2] = par[ 1]; | |
| 396 | 16 | par[ 1] = AAC_HALF_SUM(par[ 0], par[ 1]); | |
| 397 | 16 | } | |
| 398 | |||
| 399 | 1616 | static void decorrelation(PSContext *ps, INTFLOAT (*out)[32][2], const INTFLOAT (*s)[32][2], int is34) | |
| 400 | { | ||
| 401 | 1616 | LOCAL_ALIGNED_16(INTFLOAT, power, [34], [PS_QMF_TIME_SLOTS]); | |
| 402 | 1616 | LOCAL_ALIGNED_16(INTFLOAT, transient_gain, [34], [PS_QMF_TIME_SLOTS]); | |
| 403 | 1616 | INTFLOAT *peak_decay_nrg = ps->peak_decay_nrg; | |
| 404 | 1616 | INTFLOAT *power_smooth = ps->power_smooth; | |
| 405 | 1616 | INTFLOAT *peak_decay_diff_smooth = ps->peak_decay_diff_smooth; | |
| 406 | 1616 | INTFLOAT (*delay)[PS_QMF_TIME_SLOTS + PS_MAX_DELAY][2] = ps->delay; | |
| 407 | 1616 | INTFLOAT (*ap_delay)[PS_AP_LINKS][PS_QMF_TIME_SLOTS + PS_MAX_AP_DELAY][2] = ps->ap_delay; | |
| 408 | #if !USE_FIXED | ||
| 409 | 1616 | const float transient_impact = 1.5f; | |
| 410 | 1616 | const float a_smooth = 0.25f; ///< Smoothing coefficient | |
| 411 | #endif /* USE_FIXED */ | ||
| 412 |
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1616 | const int8_t *const k_to_i = is34 ? ff_k_to_i_34 : ff_k_to_i_20; |
| 413 | int i, k, m, n; | ||
| 414 | 1616 | int n0 = 0, nL = 32; | |
| 415 | 1616 | const INTFLOAT peak_decay_factor = Q31(0.76592833836465f); | |
| 416 | |||
| 417 | 1616 | memset(power, 0, 34 * sizeof(*power)); | |
| 418 | |||
| 419 |
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1616 | if (is34 != ps->common.is34bands_old) { |
| 420 | 3 | memset(ps->peak_decay_nrg, 0, sizeof(ps->peak_decay_nrg)); | |
| 421 | 3 | memset(ps->power_smooth, 0, sizeof(ps->power_smooth)); | |
| 422 | 3 | memset(ps->peak_decay_diff_smooth, 0, sizeof(ps->peak_decay_diff_smooth)); | |
| 423 | 3 | memset(ps->delay, 0, sizeof(ps->delay)); | |
| 424 | 3 | memset(ps->ap_delay, 0, sizeof(ps->ap_delay)); | |
| 425 | } | ||
| 426 | |||
| 427 |
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118392 | for (k = 0; k < NR_BANDS[is34]; k++) { |
| 428 | 116776 | int i = k_to_i[k]; | |
| 429 | 116776 | ps->dsp.add_squares(power[i], s[k], nL - n0); | |
| 430 | } | ||
| 431 | |||
| 432 | //Transient detection | ||
| 433 | #if USE_FIXED | ||
| 434 | ✗ | for (i = 0; i < NR_PAR_BANDS[is34]; i++) { | |
| 435 | ✗ | for (n = n0; n < nL; n++) { | |
| 436 | int decayed_peak; | ||
| 437 | ✗ | decayed_peak = (int)(((int64_t)peak_decay_factor * \ | |
| 438 | ✗ | peak_decay_nrg[i] + 0x40000000) >> 31); | |
| 439 | ✗ | peak_decay_nrg[i] = FFMAX(decayed_peak, power[i][n]); | |
| 440 | ✗ | power_smooth[i] += (power[i][n] + 2LL - power_smooth[i]) >> 2; | |
| 441 | ✗ | peak_decay_diff_smooth[i] += (peak_decay_nrg[i] + 2LL - power[i][n] - \ | |
| 442 | ✗ | peak_decay_diff_smooth[i]) >> 2; | |
| 443 | |||
| 444 | ✗ | if (peak_decay_diff_smooth[i]) { | |
| 445 | ✗ | transient_gain[i][n] = FFMIN(power_smooth[i]*43691LL / peak_decay_diff_smooth[i], 1<<16); | |
| 446 | } else | ||
| 447 | ✗ | transient_gain[i][n] = 1 << 16; | |
| 448 | } | ||
| 449 | } | ||
| 450 | #else | ||
| 451 |
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35364 | for (i = 0; i < NR_PAR_BANDS[is34]; i++) { |
| 452 |
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1113684 | for (n = n0; n < nL; n++) { |
| 453 | 1079936 | float decayed_peak = peak_decay_factor * peak_decay_nrg[i]; | |
| 454 | float denom; | ||
| 455 |
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1079936 | peak_decay_nrg[i] = FFMAX(decayed_peak, power[i][n]); |
| 456 | 1079936 | power_smooth[i] += a_smooth * (power[i][n] - power_smooth[i]); | |
| 457 | 1079936 | peak_decay_diff_smooth[i] += a_smooth * (peak_decay_nrg[i] - power[i][n] - peak_decay_diff_smooth[i]); | |
| 458 | 1079936 | denom = transient_impact * peak_decay_diff_smooth[i]; | |
| 459 | 1079936 | transient_gain[i][n] = (denom > power_smooth[i]) ? | |
| 460 |
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1079936 | power_smooth[i] / denom : 1.0f; |
| 461 | } | ||
| 462 | } | ||
| 463 | |||
| 464 | #endif /* USE_FIXED */ | ||
| 465 | //Decorrelation and transient reduction | ||
| 466 | // PS_AP_LINKS - 1 | ||
| 467 | // ----- | ||
| 468 | // | | Q_fract_allpass[k][m]*z^-link_delay[m] - a[m]*g_decay_slope[k] | ||
| 469 | //H[k][z] = z^-2 * phi_fract[k] * | | ---------------------------------------------------------------- | ||
| 470 | // | | 1 - a[m]*g_decay_slope[k]*Q_fract_allpass[k][m]*z^-link_delay[m] | ||
| 471 | // m = 0 | ||
| 472 | //d[k][z] (out) = transient_gain_mapped[k][z] * H[k][z] * s[k][z] | ||
| 473 |
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52136 | for (k = 0; k < NR_ALLPASS_BANDS[is34]; k++) { |
| 474 | 50520 | int b = k_to_i[k]; | |
| 475 | #if USE_FIXED | ||
| 476 | int g_decay_slope; | ||
| 477 | |||
| 478 | ✗ | if (k - DECAY_CUTOFF[is34] <= 0) { | |
| 479 | ✗ | g_decay_slope = 1 << 30; | |
| 480 | } | ||
| 481 | ✗ | else if (k - DECAY_CUTOFF[is34] >= 20) { | |
| 482 | ✗ | g_decay_slope = 0; | |
| 483 | } | ||
| 484 | else { | ||
| 485 | ✗ | g_decay_slope = (1 << 30) - DECAY_SLOPE * (k - DECAY_CUTOFF[is34]); | |
| 486 | } | ||
| 487 | #else | ||
| 488 | 50520 | float g_decay_slope = 1.f - DECAY_SLOPE * (k - DECAY_CUTOFF[is34]); | |
| 489 | 50520 | g_decay_slope = av_clipf(g_decay_slope, 0.f, 1.f); | |
| 490 | #endif /* USE_FIXED */ | ||
| 491 | 50520 | memcpy(delay[k], delay[k]+nL, PS_MAX_DELAY*sizeof(delay[k][0])); | |
| 492 | 50520 | memcpy(delay[k]+PS_MAX_DELAY, s[k], numQMFSlots*sizeof(delay[k][0])); | |
| 493 |
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202080 | for (m = 0; m < PS_AP_LINKS; m++) { |
| 494 | 151560 | memcpy(ap_delay[k][m], ap_delay[k][m]+numQMFSlots, 5*sizeof(ap_delay[k][m][0])); | |
| 495 | } | ||
| 496 | 50520 | ps->dsp.decorrelate(out[k], delay[k] + PS_MAX_DELAY - 2, ap_delay[k], | |
| 497 | 50520 | phi_fract[is34][k], | |
| 498 | 50520 | (const INTFLOAT (*)[2]) Q_fract_allpass[is34][k], | |
| 499 | 50520 | transient_gain[b], g_decay_slope, nL - n0); | |
| 500 | } | ||
| 501 |
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21008 | for (; k < SHORT_DELAY_BAND[is34]; k++) { |
| 502 | 19392 | int i = k_to_i[k]; | |
| 503 | 19392 | memcpy(delay[k], delay[k]+nL, PS_MAX_DELAY*sizeof(delay[k][0])); | |
| 504 | 19392 | memcpy(delay[k]+PS_MAX_DELAY, s[k], numQMFSlots*sizeof(delay[k][0])); | |
| 505 | //H = delay 14 | ||
| 506 | 19392 | ps->dsp.mul_pair_single(out[k], delay[k] + PS_MAX_DELAY - 14, | |
| 507 | 19392 | transient_gain[i], nL - n0); | |
| 508 | } | ||
| 509 |
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48480 | for (; k < NR_BANDS[is34]; k++) { |
| 510 | 46864 | int i = k_to_i[k]; | |
| 511 | 46864 | memcpy(delay[k], delay[k]+nL, PS_MAX_DELAY*sizeof(delay[k][0])); | |
| 512 | 46864 | memcpy(delay[k]+PS_MAX_DELAY, s[k], numQMFSlots*sizeof(delay[k][0])); | |
| 513 | //H = delay 1 | ||
| 514 | 46864 | ps->dsp.mul_pair_single(out[k], delay[k] + PS_MAX_DELAY - 1, | |
| 515 | 46864 | transient_gain[i], nL - n0); | |
| 516 | } | ||
| 517 | 1616 | } | |
| 518 | |||
| 519 | 204 | static void remap34(int8_t (**p_par_mapped)[PS_MAX_NR_IIDICC], | |
| 520 | int8_t (*par)[PS_MAX_NR_IIDICC], | ||
| 521 | int num_par, int num_env, int full) | ||
| 522 | { | ||
| 523 | 204 | int8_t (*par_mapped)[PS_MAX_NR_IIDICC] = *p_par_mapped; | |
| 524 | int e; | ||
| 525 |
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204 | if (num_par == 20 || num_par == 11) { |
| 526 | ✗ | for (e = 0; e < num_env; e++) { | |
| 527 | ✗ | map_idx_20_to_34(par_mapped[e], par[e], full); | |
| 528 | } | ||
| 529 |
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204 | } else if (num_par == 10 || num_par == 5) { |
| 530 |
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306 | for (e = 0; e < num_env; e++) { |
| 531 | 204 | map_idx_10_to_34(par_mapped[e], par[e], full); | |
| 532 | } | ||
| 533 | } else { | ||
| 534 | 102 | *p_par_mapped = par; | |
| 535 | } | ||
| 536 | 204 | } | |
| 537 | |||
| 538 | 3134 | static void remap20(int8_t (**p_par_mapped)[PS_MAX_NR_IIDICC], | |
| 539 | int8_t (*par)[PS_MAX_NR_IIDICC], | ||
| 540 | int num_par, int num_env, int full) | ||
| 541 | { | ||
| 542 | 3134 | int8_t (*par_mapped)[PS_MAX_NR_IIDICC] = *p_par_mapped; | |
| 543 | int e; | ||
| 544 |
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3134 | if (num_par == 34 || num_par == 17) { |
| 545 |
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2 | for (e = 0; e < num_env; e++) { |
| 546 | 1 | map_idx_34_to_20(par_mapped[e], par[e], full); | |
| 547 | } | ||
| 548 |
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3133 | } else if (num_par == 10 || num_par == 5) { |
| 549 |
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2 | for (e = 0; e < num_env; e++) { |
| 550 | 1 | map_idx_10_to_20(par_mapped[e], par[e], full); | |
| 551 | } | ||
| 552 | } else { | ||
| 553 | 3132 | *p_par_mapped = par; | |
| 554 | } | ||
| 555 | 3134 | } | |
| 556 | |||
| 557 | 1616 | static void stereo_processing(PSContext *ps, INTFLOAT (*l)[32][2], INTFLOAT (*r)[32][2], int is34) | |
| 558 | { | ||
| 559 | int e, b, k; | ||
| 560 | |||
| 561 | 1616 | PSCommonContext *const ps2 = &ps->common; | |
| 562 | 1616 | INTFLOAT (*H11)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H11; | |
| 563 | 1616 | INTFLOAT (*H12)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H12; | |
| 564 | 1616 | INTFLOAT (*H21)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H21; | |
| 565 | 1616 | INTFLOAT (*H22)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H22; | |
| 566 | 1616 | int8_t *opd_hist = ps->opd_hist; | |
| 567 | 1616 | int8_t *ipd_hist = ps->ipd_hist; | |
| 568 | int8_t iid_mapped_buf[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; | ||
| 569 | int8_t icc_mapped_buf[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; | ||
| 570 | int8_t ipd_mapped_buf[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; | ||
| 571 | int8_t opd_mapped_buf[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; | ||
| 572 | 1616 | int8_t (*iid_mapped)[PS_MAX_NR_IIDICC] = iid_mapped_buf; | |
| 573 | 1616 | int8_t (*icc_mapped)[PS_MAX_NR_IIDICC] = icc_mapped_buf; | |
| 574 | 1616 | int8_t (*ipd_mapped)[PS_MAX_NR_IIDICC] = ipd_mapped_buf; | |
| 575 | 1616 | int8_t (*opd_mapped)[PS_MAX_NR_IIDICC] = opd_mapped_buf; | |
| 576 |
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1616 | const int8_t *const k_to_i = is34 ? ff_k_to_i_34 : ff_k_to_i_20; |
| 577 |
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1616 | TABLE_CONST INTFLOAT (*H_LUT)[8][4] = (PS_BASELINE || ps2->icc_mode < 3) ? HA : HB; |
| 578 | |||
| 579 | //Remapping | ||
| 580 |
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1616 | if (ps2->num_env_old) { |
| 581 | 1590 | memcpy(H11[0][0], H11[0][ps2->num_env_old], sizeof(H11[0][0])); | |
| 582 | 1590 | memcpy(H11[1][0], H11[1][ps2->num_env_old], sizeof(H11[1][0])); | |
| 583 | 1590 | memcpy(H12[0][0], H12[0][ps2->num_env_old], sizeof(H12[0][0])); | |
| 584 | 1590 | memcpy(H12[1][0], H12[1][ps2->num_env_old], sizeof(H12[1][0])); | |
| 585 | 1590 | memcpy(H21[0][0], H21[0][ps2->num_env_old], sizeof(H21[0][0])); | |
| 586 | 1590 | memcpy(H21[1][0], H21[1][ps2->num_env_old], sizeof(H21[1][0])); | |
| 587 | 1590 | memcpy(H22[0][0], H22[0][ps2->num_env_old], sizeof(H22[0][0])); | |
| 588 | 1590 | memcpy(H22[1][0], H22[1][ps2->num_env_old], sizeof(H22[1][0])); | |
| 589 | } | ||
| 590 | |||
| 591 |
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1616 | if (is34) { |
| 592 | 102 | remap34(&iid_mapped, ps2->iid_par, ps2->nr_iid_par, ps2->num_env, 1); | |
| 593 | 102 | remap34(&icc_mapped, ps2->icc_par, ps2->nr_icc_par, ps2->num_env, 1); | |
| 594 |
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102 | if (ps2->enable_ipdopd) { |
| 595 | ✗ | remap34(&ipd_mapped, ps2->ipd_par, ps2->nr_ipdopd_par, ps2->num_env, 0); | |
| 596 | ✗ | remap34(&opd_mapped, ps2->opd_par, ps2->nr_ipdopd_par, ps2->num_env, 0); | |
| 597 | } | ||
| 598 |
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102 | if (!ps2->is34bands_old) { |
| 599 | 2 | map_val_20_to_34(H11[0][0]); | |
| 600 | 2 | map_val_20_to_34(H11[1][0]); | |
| 601 | 2 | map_val_20_to_34(H12[0][0]); | |
| 602 | 2 | map_val_20_to_34(H12[1][0]); | |
| 603 | 2 | map_val_20_to_34(H21[0][0]); | |
| 604 | 2 | map_val_20_to_34(H21[1][0]); | |
| 605 | 2 | map_val_20_to_34(H22[0][0]); | |
| 606 | 2 | map_val_20_to_34(H22[1][0]); | |
| 607 | 2 | ipdopd_reset(ipd_hist, opd_hist); | |
| 608 | } | ||
| 609 | } else { | ||
| 610 | 1514 | remap20(&iid_mapped, ps2->iid_par, ps2->nr_iid_par, ps2->num_env, 1); | |
| 611 | 1514 | remap20(&icc_mapped, ps2->icc_par, ps2->nr_icc_par, ps2->num_env, 1); | |
| 612 |
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1514 | if (ps2->enable_ipdopd) { |
| 613 | 53 | remap20(&ipd_mapped, ps2->ipd_par, ps2->nr_ipdopd_par, ps2->num_env, 0); | |
| 614 | 53 | remap20(&opd_mapped, ps2->opd_par, ps2->nr_ipdopd_par, ps2->num_env, 0); | |
| 615 | } | ||
| 616 |
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1514 | if (ps2->is34bands_old) { |
| 617 | 1 | map_val_34_to_20(H11[0][0]); | |
| 618 | 1 | map_val_34_to_20(H11[1][0]); | |
| 619 | 1 | map_val_34_to_20(H12[0][0]); | |
| 620 | 1 | map_val_34_to_20(H12[1][0]); | |
| 621 | 1 | map_val_34_to_20(H21[0][0]); | |
| 622 | 1 | map_val_34_to_20(H21[1][0]); | |
| 623 | 1 | map_val_34_to_20(H22[0][0]); | |
| 624 | 1 | map_val_34_to_20(H22[1][0]); | |
| 625 | 1 | ipdopd_reset(ipd_hist, opd_hist); | |
| 626 | } | ||
| 627 | } | ||
| 628 | |||
| 629 | //Mixing | ||
| 630 |
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3649 | for (e = 0; e < ps2->num_env; e++) { |
| 631 |
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45549 | for (b = 0; b < NR_PAR_BANDS[is34]; b++) { |
| 632 | INTFLOAT h11, h12, h21, h22; | ||
| 633 | 43516 | h11 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps2->iid_quant][icc_mapped[e][b]][0]; | |
| 634 | 43516 | h12 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps2->iid_quant][icc_mapped[e][b]][1]; | |
| 635 | 43516 | h21 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps2->iid_quant][icc_mapped[e][b]][2]; | |
| 636 | 43516 | h22 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps2->iid_quant][icc_mapped[e][b]][3]; | |
| 637 | |||
| 638 |
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43516 | if (!PS_BASELINE && ps2->enable_ipdopd && b < NR_IPDOPD_BANDS[is34]) { |
| 639 | //The spec say says to only run this smoother when enable_ipdopd | ||
| 640 | //is set but the reference decoder appears to run it constantly | ||
| 641 | INTFLOAT h11i, h12i, h21i, h22i; | ||
| 642 | INTFLOAT ipd_adj_re, ipd_adj_im; | ||
| 643 | 1144 | int opd_idx = opd_hist[b] * 8 + opd_mapped[e][b]; | |
| 644 | 1144 | int ipd_idx = ipd_hist[b] * 8 + ipd_mapped[e][b]; | |
| 645 | 1144 | INTFLOAT opd_re = pd_re_smooth[opd_idx]; | |
| 646 | 1144 | INTFLOAT opd_im = pd_im_smooth[opd_idx]; | |
| 647 | 1144 | INTFLOAT ipd_re = pd_re_smooth[ipd_idx]; | |
| 648 | 1144 | INTFLOAT ipd_im = pd_im_smooth[ipd_idx]; | |
| 649 | 1144 | opd_hist[b] = opd_idx & 0x3F; | |
| 650 | 1144 | ipd_hist[b] = ipd_idx & 0x3F; | |
| 651 | |||
| 652 | 1144 | ipd_adj_re = AAC_MADD30(opd_re, ipd_re, opd_im, ipd_im); | |
| 653 | 1144 | ipd_adj_im = AAC_MSUB30(opd_im, ipd_re, opd_re, ipd_im); | |
| 654 | 1144 | h11i = AAC_MUL30(h11, opd_im); | |
| 655 | 1144 | h11 = AAC_MUL30(h11, opd_re); | |
| 656 | 1144 | h12i = AAC_MUL30(h12, ipd_adj_im); | |
| 657 | 1144 | h12 = AAC_MUL30(h12, ipd_adj_re); | |
| 658 | 1144 | h21i = AAC_MUL30(h21, opd_im); | |
| 659 | 1144 | h21 = AAC_MUL30(h21, opd_re); | |
| 660 | 1144 | h22i = AAC_MUL30(h22, ipd_adj_im); | |
| 661 | 1144 | h22 = AAC_MUL30(h22, ipd_adj_re); | |
| 662 | 1144 | H11[1][e+1][b] = h11i; | |
| 663 | 1144 | H12[1][e+1][b] = h12i; | |
| 664 | 1144 | H21[1][e+1][b] = h21i; | |
| 665 | 1144 | H22[1][e+1][b] = h22i; | |
| 666 | } | ||
| 667 | 43516 | H11[0][e+1][b] = h11; | |
| 668 | 43516 | H12[0][e+1][b] = h12; | |
| 669 | 43516 | H21[0][e+1][b] = h21; | |
| 670 | 43516 | H22[0][e+1][b] = h22; | |
| 671 | } | ||
| 672 |
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150456 | for (k = 0; k < NR_BANDS[is34]; k++) { |
| 673 | 148423 | LOCAL_ALIGNED_16(INTFLOAT, h, [2], [4]); | |
| 674 | 148423 | LOCAL_ALIGNED_16(INTFLOAT, h_step, [2], [4]); | |
| 675 | 148423 | int start = ps2->border_position[e]; | |
| 676 | 148423 | int stop = ps2->border_position[e+1]; | |
| 677 |
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148423 | INTFLOAT width = Q30(1.f) / ((stop - start) ? (stop - start) : 1); |
| 678 | #if USE_FIXED | ||
| 679 | ✗ | width = FFMIN(2U*width, INT_MAX); | |
| 680 | #endif | ||
| 681 | 148423 | b = k_to_i[k]; | |
| 682 | 148423 | h[0][0] = H11[0][e][b]; | |
| 683 | 148423 | h[0][1] = H12[0][e][b]; | |
| 684 | 148423 | h[0][2] = H21[0][e][b]; | |
| 685 | 148423 | h[0][3] = H22[0][e][b]; | |
| 686 |
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148423 | if (!PS_BASELINE && ps2->enable_ipdopd) { |
| 687 | //Is this necessary? ps_04_new seems unchanged | ||
| 688 |
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7384 | if ((is34 && k <= 13 && k >= 9) || (!is34 && k <= 1)) { |
| 689 | 208 | h[1][0] = -H11[1][e][b]; | |
| 690 | 208 | h[1][1] = -H12[1][e][b]; | |
| 691 | 208 | h[1][2] = -H21[1][e][b]; | |
| 692 | 208 | h[1][3] = -H22[1][e][b]; | |
| 693 | } else { | ||
| 694 | 7176 | h[1][0] = H11[1][e][b]; | |
| 695 | 7176 | h[1][1] = H12[1][e][b]; | |
| 696 | 7176 | h[1][2] = H21[1][e][b]; | |
| 697 | 7176 | h[1][3] = H22[1][e][b]; | |
| 698 | } | ||
| 699 | } | ||
| 700 | //Interpolation | ||
| 701 | 148423 | h_step[0][0] = AAC_MSUB31_V3(H11[0][e+1][b], h[0][0], width); | |
| 702 | 148423 | h_step[0][1] = AAC_MSUB31_V3(H12[0][e+1][b], h[0][1], width); | |
| 703 | 148423 | h_step[0][2] = AAC_MSUB31_V3(H21[0][e+1][b], h[0][2], width); | |
| 704 | 148423 | h_step[0][3] = AAC_MSUB31_V3(H22[0][e+1][b], h[0][3], width); | |
| 705 |
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148423 | if (!PS_BASELINE && ps2->enable_ipdopd) { |
| 706 | 7384 | h_step[1][0] = AAC_MSUB31_V3(H11[1][e+1][b], h[1][0], width); | |
| 707 | 7384 | h_step[1][1] = AAC_MSUB31_V3(H12[1][e+1][b], h[1][1], width); | |
| 708 | 7384 | h_step[1][2] = AAC_MSUB31_V3(H21[1][e+1][b], h[1][2], width); | |
| 709 | 7384 | h_step[1][3] = AAC_MSUB31_V3(H22[1][e+1][b], h[1][3], width); | |
| 710 | } | ||
| 711 |
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148423 | if (stop - start) |
| 712 | 148423 | ps->dsp.stereo_interpolate[!PS_BASELINE && ps2->enable_ipdopd]( | |
| 713 | 148423 | l[k] + 1 + start, r[k] + 1 + start, | |
| 714 | h, h_step, stop - start); | ||
| 715 | } | ||
| 716 | } | ||
| 717 | 1616 | } | |
| 718 | |||
| 719 | 1616 | int AAC_RENAME(ff_ps_apply)(PSContext *ps, INTFLOAT L[2][38][64], INTFLOAT R[2][38][64], int top) | |
| 720 | { | ||
| 721 | 1616 | INTFLOAT (*Lbuf)[32][2] = ps->Lbuf; | |
| 722 | 1616 | INTFLOAT (*Rbuf)[32][2] = ps->Rbuf; | |
| 723 | 1616 | const int len = 32; | |
| 724 | 1616 | int is34 = ps->common.is34bands; | |
| 725 | |||
| 726 | 1616 | top += NR_BANDS[is34] - 64; | |
| 727 | 1616 | memset(ps->delay+top, 0, (NR_BANDS[is34] - top)*sizeof(ps->delay[0])); | |
| 728 |
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1616 | if (top < NR_ALLPASS_BANDS[is34]) |
| 729 | ✗ | memset(ps->ap_delay + top, 0, (NR_ALLPASS_BANDS[is34] - top)*sizeof(ps->ap_delay[0])); | |
| 730 | |||
| 731 | 1616 | hybrid_analysis(&ps->dsp, Lbuf, ps->in_buf, L, is34, len); | |
| 732 | 1616 | decorrelation(ps, Rbuf, (const INTFLOAT (*)[32][2]) Lbuf, is34); | |
| 733 | 1616 | stereo_processing(ps, Lbuf, Rbuf, is34); | |
| 734 | 1616 | hybrid_synthesis(&ps->dsp, L, Lbuf, is34, len); | |
| 735 | 1616 | hybrid_synthesis(&ps->dsp, R, Rbuf, is34, len); | |
| 736 | |||
| 737 | 1616 | return 0; | |
| 738 | } | ||
| 739 | |||
| 740 | 185 | av_cold void AAC_RENAME(ff_ps_init)(void) { | |
| 741 | 185 | ps_tableinit(); | |
| 742 | 185 | } | |
| 743 |