FFmpeg  4.3
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
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22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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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 #include "libavutil/mips/asmdefs.h"
60 
61 #if HAVE_INLINE_ASM && HAVE_MIPSFPU && ( PSY_LAME_FIR_LEN == 21 )
62 #if !HAVE_MIPS32R6 && !HAVE_MIPS64R6
63 static void calc_thr_3gpp_mips(const FFPsyWindowInfo *wi, const int num_bands,
64  AacPsyChannel *pch, const uint8_t *band_sizes,
65  const float *coefs, const int cutoff)
66 {
67  int i, w, g;
68  int start = 0, wstart = 0;
69  for (w = 0; w < wi->num_windows*16; w += 16) {
70  wstart = 0;
71  for (g = 0; g < num_bands; g++) {
72  AacPsyBand *band = &pch->band[w+g];
73 
74  float form_factor = 0.0f;
75  float Temp;
76  band->energy = 0.0f;
77  if (wstart < cutoff) {
78  for (i = 0; i < band_sizes[g]; i+=4) {
79  float a, b, c, d;
80  float ax, bx, cx, dx;
81  float *cf = (float *)&coefs[start+i];
82 
83  __asm__ volatile (
84  "lwc1 %[a], 0(%[cf]) \n\t"
85  "lwc1 %[b], 4(%[cf]) \n\t"
86  "lwc1 %[c], 8(%[cf]) \n\t"
87  "lwc1 %[d], 12(%[cf]) \n\t"
88  "abs.s %[a], %[a] \n\t"
89  "abs.s %[b], %[b] \n\t"
90  "abs.s %[c], %[c] \n\t"
91  "abs.s %[d], %[d] \n\t"
92  "sqrt.s %[ax], %[a] \n\t"
93  "sqrt.s %[bx], %[b] \n\t"
94  "sqrt.s %[cx], %[c] \n\t"
95  "sqrt.s %[dx], %[d] \n\t"
96  "madd.s %[e], %[e], %[a], %[a] \n\t"
97  "madd.s %[e], %[e], %[b], %[b] \n\t"
98  "madd.s %[e], %[e], %[c], %[c] \n\t"
99  "madd.s %[e], %[e], %[d], %[d] \n\t"
100  "add.s %[f], %[f], %[ax] \n\t"
101  "add.s %[f], %[f], %[bx] \n\t"
102  "add.s %[f], %[f], %[cx] \n\t"
103  "add.s %[f], %[f], %[dx] \n\t"
104 
105  : [a]"=&f"(a), [b]"=&f"(b),
106  [c]"=&f"(c), [d]"=&f"(d),
107  [e]"+f"(band->energy), [f]"+f"(form_factor),
108  [ax]"=&f"(ax), [bx]"=&f"(bx),
109  [cx]"=&f"(cx), [dx]"=&f"(dx)
110  : [cf]"r"(cf)
111  : "memory"
112  );
113  }
114  }
115 
116  Temp = sqrtf((float)band_sizes[g] / band->energy);
117  band->thr = band->energy * 0.001258925f;
118  band->nz_lines = form_factor * sqrtf(Temp);
119  start += band_sizes[g];
120  wstart += band_sizes[g];
121  }
122  }
123 }
124 
125 static void psy_hp_filter_mips(const float *firbuf, float *hpfsmpl, const float * psy_fir_coeffs)
126 {
127  float sum1, sum2, sum3, sum4;
128  float *fb = (float*)firbuf;
129  float *fb_end = fb + AAC_BLOCK_SIZE_LONG;
130  float *hp = hpfsmpl;
131 
132  float coeff0 = psy_fir_coeffs[1];
133  float coeff1 = psy_fir_coeffs[3];
134  float coeff2 = psy_fir_coeffs[5];
135  float coeff3 = psy_fir_coeffs[7];
136  float coeff4 = psy_fir_coeffs[9];
137 
138  __asm__ volatile (
139  ".set push \n\t"
140  ".set noreorder \n\t"
141 
142  "li.s $f12, 32768 \n\t"
143  "1: \n\t"
144  "lwc1 $f0, 40(%[fb]) \n\t"
145  "lwc1 $f1, 4(%[fb]) \n\t"
146  "lwc1 $f2, 80(%[fb]) \n\t"
147  "lwc1 $f3, 44(%[fb]) \n\t"
148  "lwc1 $f4, 8(%[fb]) \n\t"
149  "madd.s %[sum1], $f0, $f1, %[coeff0] \n\t"
150  "lwc1 $f5, 84(%[fb]) \n\t"
151  "lwc1 $f6, 48(%[fb]) \n\t"
152  "madd.s %[sum2], $f3, $f4, %[coeff0] \n\t"
153  "lwc1 $f7, 12(%[fb]) \n\t"
154  "madd.s %[sum1], %[sum1], $f2, %[coeff0] \n\t"
155  "lwc1 $f8, 88(%[fb]) \n\t"
156  "lwc1 $f9, 52(%[fb]) \n\t"
157  "madd.s %[sum2], %[sum2], $f5, %[coeff0] \n\t"
158  "madd.s %[sum3], $f6, $f7, %[coeff0] \n\t"
159  "lwc1 $f10, 16(%[fb]) \n\t"
160  "lwc1 $f11, 92(%[fb]) \n\t"
161  "madd.s %[sum1], %[sum1], $f7, %[coeff1] \n\t"
162  "lwc1 $f1, 72(%[fb]) \n\t"
163  "madd.s %[sum3], %[sum3], $f8, %[coeff0] \n\t"
164  "madd.s %[sum4], $f9, $f10, %[coeff0] \n\t"
165  "madd.s %[sum2], %[sum2], $f10, %[coeff1] \n\t"
166  "madd.s %[sum1], %[sum1], $f1, %[coeff1] \n\t"
167  "lwc1 $f4, 76(%[fb]) \n\t"
168  "lwc1 $f8, 20(%[fb]) \n\t"
169  "madd.s %[sum4], %[sum4], $f11, %[coeff0] \n\t"
170  "lwc1 $f11, 24(%[fb]) \n\t"
171  "madd.s %[sum2], %[sum2], $f4, %[coeff1] \n\t"
172  "madd.s %[sum1], %[sum1], $f8, %[coeff2] \n\t"
173  "madd.s %[sum3], %[sum3], $f8, %[coeff1] \n\t"
174  "madd.s %[sum4], %[sum4], $f11, %[coeff1] \n\t"
175  "lwc1 $f7, 64(%[fb]) \n\t"
176  "madd.s %[sum2], %[sum2], $f11, %[coeff2] \n\t"
177  "lwc1 $f10, 68(%[fb]) \n\t"
178  "madd.s %[sum3], %[sum3], $f2, %[coeff1] \n\t"
179  "madd.s %[sum4], %[sum4], $f5, %[coeff1] \n\t"
180  "madd.s %[sum1], %[sum1], $f7, %[coeff2] \n\t"
181  "madd.s %[sum2], %[sum2], $f10, %[coeff2] \n\t"
182  "lwc1 $f2, 28(%[fb]) \n\t"
183  "lwc1 $f5, 32(%[fb]) \n\t"
184  "lwc1 $f8, 56(%[fb]) \n\t"
185  "lwc1 $f11, 60(%[fb]) \n\t"
186  "madd.s %[sum3], %[sum3], $f2, %[coeff2] \n\t"
187  "madd.s %[sum4], %[sum4], $f5, %[coeff2] \n\t"
188  "madd.s %[sum1], %[sum1], $f2, %[coeff3] \n\t"
189  "madd.s %[sum2], %[sum2], $f5, %[coeff3] \n\t"
190  "madd.s %[sum3], %[sum3], $f1, %[coeff2] \n\t"
191  "madd.s %[sum4], %[sum4], $f4, %[coeff2] \n\t"
192  "madd.s %[sum1], %[sum1], $f8, %[coeff3] \n\t"
193  "madd.s %[sum2], %[sum2], $f11, %[coeff3] \n\t"
194  "lwc1 $f1, 36(%[fb]) \n\t"
195  PTR_ADDIU "%[fb], %[fb], 16 \n\t"
196  "madd.s %[sum4], %[sum4], $f0, %[coeff3] \n\t"
197  "madd.s %[sum3], %[sum3], $f1, %[coeff3] \n\t"
198  "madd.s %[sum1], %[sum1], $f1, %[coeff4] \n\t"
199  "madd.s %[sum2], %[sum2], $f0, %[coeff4] \n\t"
200  "madd.s %[sum4], %[sum4], $f10, %[coeff3] \n\t"
201  "madd.s %[sum3], %[sum3], $f7, %[coeff3] \n\t"
202  "madd.s %[sum1], %[sum1], $f6, %[coeff4] \n\t"
203  "madd.s %[sum2], %[sum2], $f9, %[coeff4] \n\t"
204  "madd.s %[sum4], %[sum4], $f6, %[coeff4] \n\t"
205  "madd.s %[sum3], %[sum3], $f3, %[coeff4] \n\t"
206  "mul.s %[sum1], %[sum1], $f12 \n\t"
207  "mul.s %[sum2], %[sum2], $f12 \n\t"
208  "madd.s %[sum4], %[sum4], $f11, %[coeff4] \n\t"
209  "madd.s %[sum3], %[sum3], $f8, %[coeff4] \n\t"
210  "swc1 %[sum1], 0(%[hp]) \n\t"
211  "swc1 %[sum2], 4(%[hp]) \n\t"
212  "mul.s %[sum4], %[sum4], $f12 \n\t"
213  "mul.s %[sum3], %[sum3], $f12 \n\t"
214  "swc1 %[sum4], 12(%[hp]) \n\t"
215  "swc1 %[sum3], 8(%[hp]) \n\t"
216  "bne %[fb], %[fb_end], 1b \n\t"
217  PTR_ADDIU "%[hp], %[hp], 16 \n\t"
218 
219  ".set pop \n\t"
220 
221  : [sum1]"=&f"(sum1), [sum2]"=&f"(sum2),
222  [sum3]"=&f"(sum3), [sum4]"=&f"(sum4),
223  [fb]"+r"(fb), [hp]"+r"(hp)
224  : [coeff0]"f"(coeff0), [coeff1]"f"(coeff1),
225  [coeff2]"f"(coeff2), [coeff3]"f"(coeff3),
226  [coeff4]"f"(coeff4), [fb_end]"r"(fb_end)
227  : "$f0", "$f1", "$f2", "$f3", "$f4", "$f5", "$f6",
228  "$f7", "$f8", "$f9", "$f10", "$f11", "$f12",
229  "memory"
230  );
231 }
232 
233 #define calc_thr_3gpp calc_thr_3gpp_mips
234 #define psy_hp_filter psy_hp_filter_mips
235 
236 #endif /* !HAVE_MIPS32R6 && !HAVE_MIPS64R6 */
237 #endif /* HAVE_INLINE_ASM && HAVE_MIPSFPU */
238 #endif /* AVCODEC_MIPS_AACPSY_MIPS_H */
AacPsyBand::thr
float thr
energy threshold
Definition: aacpsy.c:110
AacPsyBand::nz_lines
float nz_lines
number of non-zero spectral lines
Definition: aacpsy.c:112
b
#define b
Definition: input.c:41
asmdefs.h
FFPsyWindowInfo
windowing related information
Definition: psymodel.h:77
AacPsyBand
information for single band used by 3GPP TS26.403-inspired psychoacoustic model
Definition: aacpsy.c:108
g
const char * g
Definition: vf_curves.c:115
f
#define f(width, name)
Definition: cbs_vp9.c:255
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
AAC_BLOCK_SIZE_LONG
#define AAC_BLOCK_SIZE_LONG
long block size
Definition: aacpsy.c:96
AacPsyChannel::band
AacPsyBand band[128]
bands information
Definition: aacpsy.c:124
a
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:41
psy_fir_coeffs
static const float psy_fir_coeffs[]
LAME psy model FIR coefficient table.
Definition: aacpsy.c:219
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
fb
#define fb(width, name)
Definition: cbs_av1.c:552
uint8_t
uint8_t
Definition: audio_convert.c:194
AacPsyBand::energy
float energy
band energy
Definition: aacpsy.c:109
AacPsyChannel
single/pair channel context for psychoacoustic model
Definition: aacpsy.c:123
w
FFmpeg Automated Testing Environment ************************************Introduction Using FATE from your FFmpeg source directory Submitting the results to the FFmpeg result aggregation server Uploading new samples to the fate suite FATE makefile targets and variables Makefile targets Makefile variables Examples Introduction **************FATE is an extended regression suite on the client side and a means for results aggregation and presentation on the server side The first part of this document explains how you can use FATE from your FFmpeg source directory to test your ffmpeg binary The second part describes how you can run FATE to submit the results to FFmpeg’s FATE server In any way you can have a look at the publicly viewable FATE results by visiting this as it can be seen if some test on some platform broke with their recent contribution This usually happens on the platforms the developers could not test on The second part of this document describes how you can run FATE to submit your results to FFmpeg’s FATE server If you want to submit your results be sure to check that your combination of OS and compiler is not already listed on the above mentioned website In the third part you can find a comprehensive listing of FATE makefile targets and variables Using FATE from your FFmpeg source directory **********************************************If you want to run FATE on your machine you need to have the samples in place You can get the samples via the build target fate rsync Use this command from the top level source this will cause FATE to fail NOTE To use a custom wrapper to run the pass ‘ target exec’ to ‘configure’ or set the TARGET_EXEC Make variable Submitting the results to the FFmpeg result aggregation server ****************************************************************To submit your results to the server you should run fate through the shell script ‘tests fate sh’ from the FFmpeg sources This script needs to be invoked with a configuration file as its first argument tests fate sh path to fate_config A configuration file template with comments describing the individual configuration variables can be found at ‘doc fate_config sh template’ Create a configuration that suits your based on the configuration template The ‘slot’ configuration variable can be any string that is not yet but it is suggested that you name it adhering to the following pattern ‘ARCH OS COMPILER COMPILER VERSION’ The configuration file itself will be sourced in a shell therefore all shell features may be used This enables you to setup the environment as you need it for your build For your first test runs the ‘fate_recv’ variable should be empty or commented out This will run everything as normal except that it will omit the submission of the results to the server The following files should be present in $workdir as specified in the configuration it may help to try out the ‘ssh’ command with one or more ‘ v’ options You should get detailed output concerning your SSH configuration and the authentication process The only thing left is to automate the execution of the fate sh script and the synchronisation of the samples directory Uploading new samples to the fate suite *****************************************If you need a sample uploaded send a mail to samples request This is for developers who have an account on the fate suite server If you upload new please make sure they are as small as space on each network bandwidth and so on benefit from smaller test cases Also keep in mind older checkouts use existing sample that means in practice generally do not remove or overwrite files as it likely would break older checkouts or releases Also all needed samples for a commit should be ideally before the push If you need an account for frequently uploading samples or you wish to help others by doing that send a mail to ffmpeg devel rsync vauL Duo ug o o w
Definition: fate.txt:150
PTR_ADDIU
#define PTR_ADDIU
Definition: asmdefs.h:48
FFPsyWindowInfo::num_windows
int num_windows
number of windows in a frame
Definition: psymodel.h:80