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| /* | |
| * Copyright (c) 2012 | |
| * MIPS Technologies, Inc., California. | |
| * | |
| * Redistribution and use in source and binary forms, with or without | |
| * modification, are permitted provided that the following conditions | |
| * are met: | |
| * 1. Redistributions of source code must retain the above copyright | |
| * notice, this list of conditions and the following disclaimer. | |
| * 2. Redistributions in binary form must reproduce the above copyright | |
| * notice, this list of conditions and the following disclaimer in the | |
| * documentation and/or other materials provided with the distribution. | |
| * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its | |
| * contributors may be used to endorse or promote products derived from | |
| * this software without specific prior written permission. | |
| * | |
| * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND | |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE | |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| * SUCH DAMAGE. | |
| * | |
| * Author: Bojan Zivkovic ([email protected]) | |
| * | |
| * AAC encoder psychoacoustic model routines optimized | |
| * for MIPS floating-point architecture | |
| * | |
| * This file is part of FFmpeg. | |
| * | |
| * FFmpeg 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. | |
| * | |
| * FFmpeg 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 FFmpeg; if not, write to the Free Software | |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| */ | |
| /** | |
| * @file | |
| * Reference: libavcodec/aacpsy.c | |
| */ | |
| static void calc_thr_3gpp_mips(const FFPsyWindowInfo *wi, const int num_bands, | |
| AacPsyChannel *pch, const uint8_t *band_sizes, | |
| const float *coefs, const int cutoff) | |
| { | |
| int i, w, g; | |
| int start = 0, wstart = 0; | |
| for (w = 0; w < wi->num_windows*16; w += 16) { | |
| wstart = 0; | |
| for (g = 0; g < num_bands; g++) { | |
| AacPsyBand *band = &pch->band[w+g]; | |
| float form_factor = 0.0f; | |
| float Temp; | |
| band->energy = 0.0f; | |
| if (wstart < cutoff) { | |
| for (i = 0; i < band_sizes[g]; i+=4) { | |
| float a, b, c, d; | |
| float ax, bx, cx, dx; | |
| float *cf = (float *)&coefs[start+i]; | |
| __asm__ volatile ( | |
| "lwc1 %[a], 0(%[cf]) \n\t" | |
| "lwc1 %[b], 4(%[cf]) \n\t" | |
| "lwc1 %[c], 8(%[cf]) \n\t" | |
| "lwc1 %[d], 12(%[cf]) \n\t" | |
| "abs.s %[a], %[a] \n\t" | |
| "abs.s %[b], %[b] \n\t" | |
| "abs.s %[c], %[c] \n\t" | |
| "abs.s %[d], %[d] \n\t" | |
| "sqrt.s %[ax], %[a] \n\t" | |
| "sqrt.s %[bx], %[b] \n\t" | |
| "sqrt.s %[cx], %[c] \n\t" | |
| "sqrt.s %[dx], %[d] \n\t" | |
| "madd.s %[e], %[e], %[a], %[a] \n\t" | |
| "madd.s %[e], %[e], %[b], %[b] \n\t" | |
| "madd.s %[e], %[e], %[c], %[c] \n\t" | |
| "madd.s %[e], %[e], %[d], %[d] \n\t" | |
| "add.s %[f], %[f], %[ax] \n\t" | |
| "add.s %[f], %[f], %[bx] \n\t" | |
| "add.s %[f], %[f], %[cx] \n\t" | |
| "add.s %[f], %[f], %[dx] \n\t" | |
| : [a]"=&f"(a), [b]"=&f"(b), | |
| [c]"=&f"(c), [d]"=&f"(d), | |
| [e]"+f"(band->energy), [f]"+f"(form_factor), | |
| [ax]"=&f"(ax), [bx]"=&f"(bx), | |
| [cx]"=&f"(cx), [dx]"=&f"(dx) | |
| : [cf]"r"(cf) | |
| : "memory" | |
| ); | |
| } | |
| } | |
| Temp = sqrtf((float)band_sizes[g] / band->energy); | |
| band->thr = band->energy * 0.001258925f; | |
| band->nz_lines = form_factor * sqrtf(Temp); | |
| start += band_sizes[g]; | |
| wstart += band_sizes[g]; | |
| } | |
| } | |
| } | |
| static void psy_hp_filter_mips(const float *firbuf, float *hpfsmpl, const float * psy_fir_coeffs) | |
| { | |
| float sum1, sum2, sum3, sum4; | |
| float *fb = (float*)firbuf; | |
| float *fb_end = fb + AAC_BLOCK_SIZE_LONG; | |
| float *hp = hpfsmpl; | |
| float coeff0 = psy_fir_coeffs[1]; | |
| float coeff1 = psy_fir_coeffs[3]; | |
| float coeff2 = psy_fir_coeffs[5]; | |
| float coeff3 = psy_fir_coeffs[7]; | |
| float coeff4 = psy_fir_coeffs[9]; | |
| float f1 = 32768.0; | |
| __asm__ volatile ( | |
| ".set push \n\t" | |
| ".set noreorder \n\t" | |
| "1: \n\t" | |
| "lwc1 $f0, 40(%[fb]) \n\t" | |
| "lwc1 $f1, 4(%[fb]) \n\t" | |
| "lwc1 $f2, 80(%[fb]) \n\t" | |
| "lwc1 $f3, 44(%[fb]) \n\t" | |
| "lwc1 $f4, 8(%[fb]) \n\t" | |
| "madd.s %[sum1], $f0, $f1, %[coeff0] \n\t" | |
| "lwc1 $f5, 84(%[fb]) \n\t" | |
| "lwc1 $f6, 48(%[fb]) \n\t" | |
| "madd.s %[sum2], $f3, $f4, %[coeff0] \n\t" | |
| "lwc1 $f7, 12(%[fb]) \n\t" | |
| "madd.s %[sum1], %[sum1], $f2, %[coeff0] \n\t" | |
| "lwc1 $f8, 88(%[fb]) \n\t" | |
| "lwc1 $f9, 52(%[fb]) \n\t" | |
| "madd.s %[sum2], %[sum2], $f5, %[coeff0] \n\t" | |
| "madd.s %[sum3], $f6, $f7, %[coeff0] \n\t" | |
| "lwc1 $f10, 16(%[fb]) \n\t" | |
| "lwc1 $f11, 92(%[fb]) \n\t" | |
| "madd.s %[sum1], %[sum1], $f7, %[coeff1] \n\t" | |
| "lwc1 $f1, 72(%[fb]) \n\t" | |
| "madd.s %[sum3], %[sum3], $f8, %[coeff0] \n\t" | |
| "madd.s %[sum4], $f9, $f10, %[coeff0] \n\t" | |
| "madd.s %[sum2], %[sum2], $f10, %[coeff1] \n\t" | |
| "madd.s %[sum1], %[sum1], $f1, %[coeff1] \n\t" | |
| "lwc1 $f4, 76(%[fb]) \n\t" | |
| "lwc1 $f8, 20(%[fb]) \n\t" | |
| "madd.s %[sum4], %[sum4], $f11, %[coeff0] \n\t" | |
| "lwc1 $f11, 24(%[fb]) \n\t" | |
| "madd.s %[sum2], %[sum2], $f4, %[coeff1] \n\t" | |
| "madd.s %[sum1], %[sum1], $f8, %[coeff2] \n\t" | |
| "madd.s %[sum3], %[sum3], $f8, %[coeff1] \n\t" | |
| "madd.s %[sum4], %[sum4], $f11, %[coeff1] \n\t" | |
| "lwc1 $f7, 64(%[fb]) \n\t" | |
| "madd.s %[sum2], %[sum2], $f11, %[coeff2] \n\t" | |
| "lwc1 $f10, 68(%[fb]) \n\t" | |
| "madd.s %[sum3], %[sum3], $f2, %[coeff1] \n\t" | |
| "madd.s %[sum4], %[sum4], $f5, %[coeff1] \n\t" | |
| "madd.s %[sum1], %[sum1], $f7, %[coeff2] \n\t" | |
| "madd.s %[sum2], %[sum2], $f10, %[coeff2] \n\t" | |
| "lwc1 $f2, 28(%[fb]) \n\t" | |
| "lwc1 $f5, 32(%[fb]) \n\t" | |
| "lwc1 $f8, 56(%[fb]) \n\t" | |
| "lwc1 $f11, 60(%[fb]) \n\t" | |
| "madd.s %[sum3], %[sum3], $f2, %[coeff2] \n\t" | |
| "madd.s %[sum4], %[sum4], $f5, %[coeff2] \n\t" | |
| "madd.s %[sum1], %[sum1], $f2, %[coeff3] \n\t" | |
| "madd.s %[sum2], %[sum2], $f5, %[coeff3] \n\t" | |
| "madd.s %[sum3], %[sum3], $f1, %[coeff2] \n\t" | |
| "madd.s %[sum4], %[sum4], $f4, %[coeff2] \n\t" | |
| "madd.s %[sum1], %[sum1], $f8, %[coeff3] \n\t" | |
| "madd.s %[sum2], %[sum2], $f11, %[coeff3] \n\t" | |
| "lwc1 $f1, 36(%[fb]) \n\t" | |
| PTR_ADDIU "%[fb], %[fb], 16 \n\t" | |
| "madd.s %[sum4], %[sum4], $f0, %[coeff3] \n\t" | |
| "madd.s %[sum3], %[sum3], $f1, %[coeff3] \n\t" | |
| "madd.s %[sum1], %[sum1], $f1, %[coeff4] \n\t" | |
| "madd.s %[sum2], %[sum2], $f0, %[coeff4] \n\t" | |
| "madd.s %[sum4], %[sum4], $f10, %[coeff3] \n\t" | |
| "madd.s %[sum3], %[sum3], $f7, %[coeff3] \n\t" | |
| "madd.s %[sum1], %[sum1], $f6, %[coeff4] \n\t" | |
| "madd.s %[sum2], %[sum2], $f9, %[coeff4] \n\t" | |
| "madd.s %[sum4], %[sum4], $f6, %[coeff4] \n\t" | |
| "madd.s %[sum3], %[sum3], $f3, %[coeff4] \n\t" | |
| "mul.s %[sum1], %[sum1], %[f1] \n\t" | |
| "mul.s %[sum2], %[sum2], %[f1] \n\t" | |
| "madd.s %[sum4], %[sum4], $f11, %[coeff4] \n\t" | |
| "madd.s %[sum3], %[sum3], $f8, %[coeff4] \n\t" | |
| "swc1 %[sum1], 0(%[hp]) \n\t" | |
| "swc1 %[sum2], 4(%[hp]) \n\t" | |
| "mul.s %[sum4], %[sum4], %[f1] \n\t" | |
| "mul.s %[sum3], %[sum3], %[f1] \n\t" | |
| "swc1 %[sum4], 12(%[hp]) \n\t" | |
| "swc1 %[sum3], 8(%[hp]) \n\t" | |
| "bne %[fb], %[fb_end], 1b \n\t" | |
| PTR_ADDIU "%[hp], %[hp], 16 \n\t" | |
| ".set pop \n\t" | |
| : [sum1]"=&f"(sum1), [sum2]"=&f"(sum2), | |
| [sum3]"=&f"(sum3), [sum4]"=&f"(sum4), | |
| [fb]"+r"(fb), [hp]"+r"(hp) | |
| : [coeff0]"f"(coeff0), [coeff1]"f"(coeff1), | |
| [coeff2]"f"(coeff2), [coeff3]"f"(coeff3), | |
| [coeff4]"f"(coeff4), [fb_end]"r"(fb_end), [f1]"f"(f1) | |
| : "$f0", "$f1", "$f2", "$f3", "$f4", "$f5", "$f6", | |
| "$f7", "$f8", "$f9", "$f10", "$f11", | |
| "memory" | |
| ); | |
| } | |