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aacpsy_mips.h
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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 */
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