| 1 | /* |
| 2 | * Copyright (c) 2012 |
| 3 | * MIPS Technologies, Inc., California. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its |
| 14 | * contributors may be used to endorse or promote products derived from |
| 15 | * this software without specific prior written permission. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND |
| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE |
| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 27 | * SUCH DAMAGE. |
| 28 | * |
| 29 | * Author: Bojan Zivkovic (bojan@mips.com) |
| 30 | * |
| 31 | * AAC encoder psychoacoustic model routines optimized |
| 32 | * for MIPS floating-point architecture |
| 33 | * |
| 34 | * This file is part of FFmpeg. |
| 35 | * |
| 36 | * FFmpeg is free software; you can redistribute it and/or |
| 37 | * modify it under the terms of the GNU Lesser General Public |
| 38 | * License as published by the Free Software Foundation; either |
| 39 | * version 2.1 of the License, or (at your option) any later version. |
| 40 | * |
| 41 | * FFmpeg is distributed in the hope that it will be useful, |
| 42 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 43 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 44 | * Lesser General Public License for more details. |
| 45 | * |
| 46 | * You should have received a copy of the GNU Lesser General Public |
| 47 | * License along with FFmpeg; if not, write to the Free Software |
| 48 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 49 | */ |
| 50 | |
| 51 | /** |
| 52 | * @file |
| 53 | * Reference: libavcodec/aacpsy.c |
| 54 | */ |
| 55 | |
| 56 | #ifndef AVCODEC_MIPS_AACPSY_MIPS_H |
| 57 | #define AVCODEC_MIPS_AACPSY_MIPS_H |
| 58 | |
| 59 | #if HAVE_INLINE_ASM && HAVE_MIPSFPU && ( PSY_LAME_FIR_LEN == 21 ) |
| 60 | static void calc_thr_3gpp_mips(const FFPsyWindowInfo *wi, const int num_bands, |
| 61 | AacPsyChannel *pch, const uint8_t *band_sizes, |
| 62 | const float *coefs) |
| 63 | { |
| 64 | int i, w, g; |
| 65 | int start = 0; |
| 66 | for (w = 0; w < wi->num_windows*16; w += 16) { |
| 67 | for (g = 0; g < num_bands; g++) { |
| 68 | AacPsyBand *band = &pch->band[w+g]; |
| 69 | |
| 70 | float form_factor = 0.0f; |
| 71 | float Temp; |
| 72 | band->energy = 0.0f; |
| 73 | for (i = 0; i < band_sizes[g]; i+=4) { |
| 74 | float a, b, c, d; |
| 75 | float ax, bx, cx, dx; |
| 76 | float *cf = (float *)&coefs[start+i]; |
| 77 | |
| 78 | __asm__ volatile ( |
| 79 | "lwc1 %[a], 0(%[cf]) \n\t" |
| 80 | "lwc1 %[b], 4(%[cf]) \n\t" |
| 81 | "lwc1 %[c], 8(%[cf]) \n\t" |
| 82 | "lwc1 %[d], 12(%[cf]) \n\t" |
| 83 | "abs.s %[a], %[a] \n\t" |
| 84 | "abs.s %[b], %[b] \n\t" |
| 85 | "abs.s %[c], %[c] \n\t" |
| 86 | "abs.s %[d], %[d] \n\t" |
| 87 | "sqrt.s %[ax], %[a] \n\t" |
| 88 | "sqrt.s %[bx], %[b] \n\t" |
| 89 | "sqrt.s %[cx], %[c] \n\t" |
| 90 | "sqrt.s %[dx], %[d] \n\t" |
| 91 | "madd.s %[e], %[e], %[a], %[a] \n\t" |
| 92 | "madd.s %[e], %[e], %[b], %[b] \n\t" |
| 93 | "madd.s %[e], %[e], %[c], %[c] \n\t" |
| 94 | "madd.s %[e], %[e], %[d], %[d] \n\t" |
| 95 | "add.s %[f], %[f], %[ax] \n\t" |
| 96 | "add.s %[f], %[f], %[bx] \n\t" |
| 97 | "add.s %[f], %[f], %[cx] \n\t" |
| 98 | "add.s %[f], %[f], %[dx] \n\t" |
| 99 | |
| 100 | : [a]"=&f"(a), [b]"=&f"(b), |
| 101 | [c]"=&f"(c), [d]"=&f"(d), |
| 102 | [e]"+f"(band->energy), [f]"+f"(form_factor), |
| 103 | [ax]"=&f"(ax), [bx]"=&f"(bx), |
| 104 | [cx]"=&f"(cx), [dx]"=&f"(dx) |
| 105 | : [cf]"r"(cf) |
| 106 | : "memory" |
| 107 | ); |
| 108 | } |
| 109 | |
| 110 | Temp = sqrtf((float)band_sizes[g] / band->energy); |
| 111 | band->thr = band->energy * 0.001258925f; |
| 112 | band->nz_lines = form_factor * sqrtf(Temp); |
| 113 | start += band_sizes[g]; |
| 114 | } |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | static void psy_hp_filter_mips(const float *firbuf, float *hpfsmpl, const float * psy_fir_coeffs) |
| 119 | { |
| 120 | float sum1, sum2, sum3, sum4; |
| 121 | float *fb = (float*)firbuf; |
| 122 | float *fb_end = fb + AAC_BLOCK_SIZE_LONG; |
| 123 | float *hp = hpfsmpl; |
| 124 | |
| 125 | float coeff0 = psy_fir_coeffs[1]; |
| 126 | float coeff1 = psy_fir_coeffs[3]; |
| 127 | float coeff2 = psy_fir_coeffs[5]; |
| 128 | float coeff3 = psy_fir_coeffs[7]; |
| 129 | float coeff4 = psy_fir_coeffs[9]; |
| 130 | |
| 131 | __asm__ volatile ( |
| 132 | ".set push \n\t" |
| 133 | ".set noreorder \n\t" |
| 134 | |
| 135 | "li.s $f12, 32768 \n\t" |
| 136 | "1: \n\t" |
| 137 | "lwc1 $f0, 40(%[fb]) \n\t" |
| 138 | "lwc1 $f1, 4(%[fb]) \n\t" |
| 139 | "lwc1 $f2, 80(%[fb]) \n\t" |
| 140 | "lwc1 $f3, 44(%[fb]) \n\t" |
| 141 | "lwc1 $f4, 8(%[fb]) \n\t" |
| 142 | "madd.s %[sum1], $f0, $f1, %[coeff0] \n\t" |
| 143 | "lwc1 $f5, 84(%[fb]) \n\t" |
| 144 | "lwc1 $f6, 48(%[fb]) \n\t" |
| 145 | "madd.s %[sum2], $f3, $f4, %[coeff0] \n\t" |
| 146 | "lwc1 $f7, 12(%[fb]) \n\t" |
| 147 | "madd.s %[sum1], %[sum1], $f2, %[coeff0] \n\t" |
| 148 | "lwc1 $f8, 88(%[fb]) \n\t" |
| 149 | "lwc1 $f9, 52(%[fb]) \n\t" |
| 150 | "madd.s %[sum2], %[sum2], $f5, %[coeff0] \n\t" |
| 151 | "madd.s %[sum3], $f6, $f7, %[coeff0] \n\t" |
| 152 | "lwc1 $f10, 16(%[fb]) \n\t" |
| 153 | "lwc1 $f11, 92(%[fb]) \n\t" |
| 154 | "madd.s %[sum1], %[sum1], $f7, %[coeff1] \n\t" |
| 155 | "lwc1 $f1, 72(%[fb]) \n\t" |
| 156 | "madd.s %[sum3], %[sum3], $f8, %[coeff0] \n\t" |
| 157 | "madd.s %[sum4], $f9, $f10, %[coeff0] \n\t" |
| 158 | "madd.s %[sum2], %[sum2], $f10, %[coeff1] \n\t" |
| 159 | "madd.s %[sum1], %[sum1], $f1, %[coeff1] \n\t" |
| 160 | "lwc1 $f4, 76(%[fb]) \n\t" |
| 161 | "lwc1 $f8, 20(%[fb]) \n\t" |
| 162 | "madd.s %[sum4], %[sum4], $f11, %[coeff0] \n\t" |
| 163 | "lwc1 $f11, 24(%[fb]) \n\t" |
| 164 | "madd.s %[sum2], %[sum2], $f4, %[coeff1] \n\t" |
| 165 | "madd.s %[sum1], %[sum1], $f8, %[coeff2] \n\t" |
| 166 | "madd.s %[sum3], %[sum3], $f8, %[coeff1] \n\t" |
| 167 | "madd.s %[sum4], %[sum4], $f11, %[coeff1] \n\t" |
| 168 | "lwc1 $f7, 64(%[fb]) \n\t" |
| 169 | "madd.s %[sum2], %[sum2], $f11, %[coeff2] \n\t" |
| 170 | "lwc1 $f10, 68(%[fb]) \n\t" |
| 171 | "madd.s %[sum3], %[sum3], $f2, %[coeff1] \n\t" |
| 172 | "madd.s %[sum4], %[sum4], $f5, %[coeff1] \n\t" |
| 173 | "madd.s %[sum1], %[sum1], $f7, %[coeff2] \n\t" |
| 174 | "madd.s %[sum2], %[sum2], $f10, %[coeff2] \n\t" |
| 175 | "lwc1 $f2, 28(%[fb]) \n\t" |
| 176 | "lwc1 $f5, 32(%[fb]) \n\t" |
| 177 | "lwc1 $f8, 56(%[fb]) \n\t" |
| 178 | "lwc1 $f11, 60(%[fb]) \n\t" |
| 179 | "madd.s %[sum3], %[sum3], $f2, %[coeff2] \n\t" |
| 180 | "madd.s %[sum4], %[sum4], $f5, %[coeff2] \n\t" |
| 181 | "madd.s %[sum1], %[sum1], $f2, %[coeff3] \n\t" |
| 182 | "madd.s %[sum2], %[sum2], $f5, %[coeff3] \n\t" |
| 183 | "madd.s %[sum3], %[sum3], $f1, %[coeff2] \n\t" |
| 184 | "madd.s %[sum4], %[sum4], $f4, %[coeff2] \n\t" |
| 185 | "madd.s %[sum1], %[sum1], $f8, %[coeff3] \n\t" |
| 186 | "madd.s %[sum2], %[sum2], $f11, %[coeff3] \n\t" |
| 187 | "lwc1 $f1, 36(%[fb]) \n\t" |
| 188 | "addiu %[fb], %[fb], 16 \n\t" |
| 189 | "madd.s %[sum4], %[sum4], $f0, %[coeff3] \n\t" |
| 190 | "madd.s %[sum3], %[sum3], $f1, %[coeff3] \n\t" |
| 191 | "madd.s %[sum1], %[sum1], $f1, %[coeff4] \n\t" |
| 192 | "madd.s %[sum2], %[sum2], $f0, %[coeff4] \n\t" |
| 193 | "madd.s %[sum4], %[sum4], $f10, %[coeff3] \n\t" |
| 194 | "madd.s %[sum3], %[sum3], $f7, %[coeff3] \n\t" |
| 195 | "madd.s %[sum1], %[sum1], $f6, %[coeff4] \n\t" |
| 196 | "madd.s %[sum2], %[sum2], $f9, %[coeff4] \n\t" |
| 197 | "madd.s %[sum4], %[sum4], $f6, %[coeff4] \n\t" |
| 198 | "madd.s %[sum3], %[sum3], $f3, %[coeff4] \n\t" |
| 199 | "mul.s %[sum1], %[sum1], $f12 \n\t" |
| 200 | "mul.s %[sum2], %[sum2], $f12 \n\t" |
| 201 | "madd.s %[sum4], %[sum4], $f11, %[coeff4] \n\t" |
| 202 | "madd.s %[sum3], %[sum3], $f8, %[coeff4] \n\t" |
| 203 | "swc1 %[sum1], 0(%[hp]) \n\t" |
| 204 | "swc1 %[sum2], 4(%[hp]) \n\t" |
| 205 | "mul.s %[sum4], %[sum4], $f12 \n\t" |
| 206 | "mul.s %[sum3], %[sum3], $f12 \n\t" |
| 207 | "swc1 %[sum4], 12(%[hp]) \n\t" |
| 208 | "swc1 %[sum3], 8(%[hp]) \n\t" |
| 209 | "bne %[fb], %[fb_end], 1b \n\t" |
| 210 | " addiu %[hp], %[hp], 16 \n\t" |
| 211 | |
| 212 | ".set pop \n\t" |
| 213 | |
| 214 | : [sum1]"=&f"(sum1), [sum2]"=&f"(sum2), |
| 215 | [sum3]"=&f"(sum3), [sum4]"=&f"(sum4), |
| 216 | [fb]"+r"(fb), [hp]"+r"(hp) |
| 217 | : [coeff0]"f"(coeff0), [coeff1]"f"(coeff1), |
| 218 | [coeff2]"f"(coeff2), [coeff3]"f"(coeff3), |
| 219 | [coeff4]"f"(coeff4), [fb_end]"r"(fb_end) |
| 220 | : "$f0", "$f1", "$f2", "$f3", "$f4", "$f5", "$f6", |
| 221 | "$f7", "$f8", "$f9", "$f10", "$f11", "$f12", |
| 222 | "memory" |
| 223 | ); |
| 224 | } |
| 225 | |
| 226 | #define calc_thr_3gpp calc_thr_3gpp_mips |
| 227 | #define psy_hp_filter psy_hp_filter_mips |
| 228 | |
| 229 | #endif /* HAVE_INLINE_ASM && HAVE_MIPSFPU */ |
| 230 | #endif /* AVCODEC_MIPS_AACPSY_MIPS_H */ |