FFmpeg
aacsbr_mips.c
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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  * Authors: Djordje Pesut (djordje@mips.com)
30  * Mirjana Vulin (mvulin@mips.com)
31  *
32  * This file is part of FFmpeg.
33  *
34  * FFmpeg is free software; you can redistribute it and/or
35  * modify it under the terms of the GNU Lesser General Public
36  * License as published by the Free Software Foundation; either
37  * version 2.1 of the License, or (at your option) any later version.
38  *
39  * FFmpeg is distributed in the hope that it will be useful,
40  * but WITHOUT ANY WARRANTY; without even the implied warranty of
41  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
42  * Lesser General Public License for more details.
43  *
44  * You should have received a copy of the GNU Lesser General Public
45  * License along with FFmpeg; if not, write to the Free Software
46  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
47  */
48 
49 /**
50  * @file
51  * Reference: libavcodec/aacsbr.c
52  */
53 
54 #include "libavcodec/aac.h"
55 #include "libavcodec/aacsbr.h"
56 #include "libavutil/mips/asmdefs.h"
57 
58 #define ENVELOPE_ADJUSTMENT_OFFSET 2
59 
60 #if HAVE_INLINE_ASM
61 static int sbr_lf_gen_mips(AACContext *ac, SpectralBandReplication *sbr,
62  float X_low[32][40][2], const float W[2][32][32][2],
63  int buf_idx)
64 {
65  int i, k;
66  int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7;
67  float *p_x_low = &X_low[0][8][0];
68  float *p_w = (float*)&W[buf_idx][0][0][0];
69  float *p_x1_low = &X_low[0][0][0];
70  float *p_w1 = (float*)&W[1-buf_idx][24][0][0];
71 
72  float *loop_end=p_x1_low + 2560;
73 
74  /* loop unrolled 8 times */
75  __asm__ volatile (
76  "1: \n\t"
77  "sw $0, 0(%[p_x1_low]) \n\t"
78  "sw $0, 4(%[p_x1_low]) \n\t"
79  "sw $0, 8(%[p_x1_low]) \n\t"
80  "sw $0, 12(%[p_x1_low]) \n\t"
81  "sw $0, 16(%[p_x1_low]) \n\t"
82  "sw $0, 20(%[p_x1_low]) \n\t"
83  "sw $0, 24(%[p_x1_low]) \n\t"
84  "sw $0, 28(%[p_x1_low]) \n\t"
85  PTR_ADDIU "%[p_x1_low],%[p_x1_low], 32 \n\t"
86  "bne %[p_x1_low], %[loop_end], 1b \n\t"
87  PTR_ADDIU "%[p_x1_low],%[p_x1_low], -10240 \n\t"
88 
89  : [p_x1_low]"+r"(p_x1_low)
90  : [loop_end]"r"(loop_end)
91  : "memory"
92  );
93 
94  for (k = 0; k < sbr->kx[1]; k++) {
95  for (i = 0; i < 32; i+=4) {
96  /* loop unrolled 4 times */
97  __asm__ volatile (
98  "lw %[temp0], 0(%[p_w]) \n\t"
99  "lw %[temp1], 4(%[p_w]) \n\t"
100  "lw %[temp2], 256(%[p_w]) \n\t"
101  "lw %[temp3], 260(%[p_w]) \n\t"
102  "lw %[temp4], 512(%[p_w]) \n\t"
103  "lw %[temp5], 516(%[p_w]) \n\t"
104  "lw %[temp6], 768(%[p_w]) \n\t"
105  "lw %[temp7], 772(%[p_w]) \n\t"
106  "sw %[temp0], 0(%[p_x_low]) \n\t"
107  "sw %[temp1], 4(%[p_x_low]) \n\t"
108  "sw %[temp2], 8(%[p_x_low]) \n\t"
109  "sw %[temp3], 12(%[p_x_low]) \n\t"
110  "sw %[temp4], 16(%[p_x_low]) \n\t"
111  "sw %[temp5], 20(%[p_x_low]) \n\t"
112  "sw %[temp6], 24(%[p_x_low]) \n\t"
113  "sw %[temp7], 28(%[p_x_low]) \n\t"
114  PTR_ADDIU "%[p_x_low], %[p_x_low], 32 \n\t"
115  PTR_ADDIU "%[p_w], %[p_w], 1024 \n\t"
116 
117  : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1),
118  [temp2]"=&r"(temp2), [temp3]"=&r"(temp3),
119  [temp4]"=&r"(temp4), [temp5]"=&r"(temp5),
120  [temp6]"=&r"(temp6), [temp7]"=&r"(temp7),
121  [p_w]"+r"(p_w), [p_x_low]"+r"(p_x_low)
122  :
123  : "memory"
124  );
125  }
126  p_x_low += 16;
127  p_w -= 2046;
128  }
129 
130  for (k = 0; k < sbr->kx[0]; k++) {
131  for (i = 0; i < 2; i++) {
132 
133  /* loop unrolled 4 times */
134  __asm__ volatile (
135  "lw %[temp0], 0(%[p_w1]) \n\t"
136  "lw %[temp1], 4(%[p_w1]) \n\t"
137  "lw %[temp2], 256(%[p_w1]) \n\t"
138  "lw %[temp3], 260(%[p_w1]) \n\t"
139  "lw %[temp4], 512(%[p_w1]) \n\t"
140  "lw %[temp5], 516(%[p_w1]) \n\t"
141  "lw %[temp6], 768(%[p_w1]) \n\t"
142  "lw %[temp7], 772(%[p_w1]) \n\t"
143  "sw %[temp0], 0(%[p_x1_low]) \n\t"
144  "sw %[temp1], 4(%[p_x1_low]) \n\t"
145  "sw %[temp2], 8(%[p_x1_low]) \n\t"
146  "sw %[temp3], 12(%[p_x1_low]) \n\t"
147  "sw %[temp4], 16(%[p_x1_low]) \n\t"
148  "sw %[temp5], 20(%[p_x1_low]) \n\t"
149  "sw %[temp6], 24(%[p_x1_low]) \n\t"
150  "sw %[temp7], 28(%[p_x1_low]) \n\t"
151  PTR_ADDIU "%[p_x1_low], %[p_x1_low], 32 \n\t"
152  PTR_ADDIU "%[p_w1], %[p_w1], 1024 \n\t"
153 
154  : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1),
155  [temp2]"=&r"(temp2), [temp3]"=&r"(temp3),
156  [temp4]"=&r"(temp4), [temp5]"=&r"(temp5),
157  [temp6]"=&r"(temp6), [temp7]"=&r"(temp7),
158  [p_w1]"+r"(p_w1), [p_x1_low]"+r"(p_x1_low)
159  :
160  : "memory"
161  );
162  }
163  p_x1_low += 64;
164  p_w1 -= 510;
165  }
166  return 0;
167 }
168 
169 static int sbr_x_gen_mips(SpectralBandReplication *sbr, float X[2][38][64],
170  const float Y0[38][64][2], const float Y1[38][64][2],
171  const float X_low[32][40][2], int ch)
172 {
173  int k, i;
174  const int i_f = 32;
175  int temp0, temp1, temp2, temp3;
176  const float *X_low1, *Y01, *Y11;
177  float *x1=&X[0][0][0];
178  float *j=x1+4864;
179  const int i_Temp = FFMAX(2*sbr->data[ch].t_env_num_env_old - i_f, 0);
180 
181  /* loop unrolled 8 times */
182  __asm__ volatile (
183  "1: \n\t"
184  "sw $0, 0(%[x1]) \n\t"
185  "sw $0, 4(%[x1]) \n\t"
186  "sw $0, 8(%[x1]) \n\t"
187  "sw $0, 12(%[x1]) \n\t"
188  "sw $0, 16(%[x1]) \n\t"
189  "sw $0, 20(%[x1]) \n\t"
190  "sw $0, 24(%[x1]) \n\t"
191  "sw $0, 28(%[x1]) \n\t"
192  PTR_ADDIU "%[x1],%[x1], 32 \n\t"
193  "bne %[x1], %[j], 1b \n\t"
194  PTR_ADDIU "%[x1],%[x1], -19456 \n\t"
195 
196  : [x1]"+r"(x1)
197  : [j]"r"(j)
198  : "memory"
199  );
200 
201  if (i_Temp != 0) {
202 
203  X_low1=&X_low[0][2][0];
204 
205  for (k = 0; k < sbr->kx[0]; k++) {
206 
207  __asm__ volatile (
208  "move %[i], $zero \n\t"
209  "2: \n\t"
210  "lw %[temp0], 0(%[X_low1]) \n\t"
211  "lw %[temp1], 4(%[X_low1]) \n\t"
212  "sw %[temp0], 0(%[x1]) \n\t"
213  "sw %[temp1], 9728(%[x1]) \n\t"
214  PTR_ADDIU "%[x1], %[x1], 256 \n\t"
215  PTR_ADDIU "%[X_low1], %[X_low1], 8 \n\t"
216  "addiu %[i], %[i], 1 \n\t"
217  "bne %[i], %[i_Temp], 2b \n\t"
218 
219  : [x1]"+r"(x1), [X_low1]"+r"(X_low1), [i]"=&r"(i),
220  [temp0]"=&r"(temp0), [temp1]"=&r"(temp1)
221  : [i_Temp]"r"(i_Temp)
222  : "memory"
223  );
224  x1-=(i_Temp<<6)-1;
225  X_low1-=(i_Temp<<1)-80;
226  }
227 
228  x1=&X[0][0][k];
229  Y01=(float*)&Y0[32][k][0];
230 
231  for (; k < sbr->kx[0] + sbr->m[0]; k++) {
232  __asm__ volatile (
233  "move %[i], $zero \n\t"
234  "3: \n\t"
235  "lw %[temp0], 0(%[Y01]) \n\t"
236  "lw %[temp1], 4(%[Y01]) \n\t"
237  "sw %[temp0], 0(%[x1]) \n\t"
238  "sw %[temp1], 9728(%[x1]) \n\t"
239  PTR_ADDIU "%[x1], %[x1], 256 \n\t"
240  PTR_ADDIU "%[Y01], %[Y01], 512 \n\t"
241  "addiu %[i], %[i], 1 \n\t"
242  "bne %[i], %[i_Temp], 3b \n\t"
243 
244  : [x1]"+r"(x1), [Y01]"+r"(Y01), [i]"=&r"(i),
245  [temp0]"=&r"(temp0), [temp1]"=&r"(temp1)
246  : [i_Temp]"r"(i_Temp)
247  : "memory"
248  );
249  x1 -=(i_Temp<<6)-1;
250  Y01 -=(i_Temp<<7)-2;
251  }
252  }
253 
254  x1=&X[0][i_Temp][0];
255  X_low1=&X_low[0][i_Temp+2][0];
256  temp3=38;
257 
258  for (k = 0; k < sbr->kx[1]; k++) {
259 
260  __asm__ volatile (
261  "move %[i], %[i_Temp] \n\t"
262  "4: \n\t"
263  "lw %[temp0], 0(%[X_low1]) \n\t"
264  "lw %[temp1], 4(%[X_low1]) \n\t"
265  "sw %[temp0], 0(%[x1]) \n\t"
266  "sw %[temp1], 9728(%[x1]) \n\t"
267  PTR_ADDIU "%[x1], %[x1], 256 \n\t"
268  PTR_ADDIU "%[X_low1],%[X_low1], 8 \n\t"
269  "addiu %[i], %[i], 1 \n\t"
270  "bne %[i], %[temp3], 4b \n\t"
271 
272  : [x1]"+r"(x1), [X_low1]"+r"(X_low1), [i]"=&r"(i),
273  [temp0]"=&r"(temp0), [temp1]"=&r"(temp1),
274  [temp2]"=&r"(temp2)
275  : [i_Temp]"r"(i_Temp), [temp3]"r"(temp3)
276  : "memory"
277  );
278  x1 -= ((38-i_Temp)<<6)-1;
279  X_low1 -= ((38-i_Temp)<<1)- 80;
280  }
281 
282  x1=&X[0][i_Temp][k];
283  Y11=&Y1[i_Temp][k][0];
284  temp2=32;
285 
286  for (; k < sbr->kx[1] + sbr->m[1]; k++) {
287 
288  __asm__ volatile (
289  "move %[i], %[i_Temp] \n\t"
290  "5: \n\t"
291  "lw %[temp0], 0(%[Y11]) \n\t"
292  "lw %[temp1], 4(%[Y11]) \n\t"
293  "sw %[temp0], 0(%[x1]) \n\t"
294  "sw %[temp1], 9728(%[x1]) \n\t"
295  PTR_ADDIU "%[x1], %[x1], 256 \n\t"
296  PTR_ADDIU "%[Y11], %[Y11], 512 \n\t"
297  "addiu %[i], %[i], 1 \n\t"
298  "bne %[i], %[temp2], 5b \n\t"
299 
300  : [x1]"+r"(x1), [Y11]"+r"(Y11), [i]"=&r"(i),
301  [temp0]"=&r"(temp0), [temp1]"=&r"(temp1)
302  : [i_Temp]"r"(i_Temp), [temp3]"r"(temp3),
303  [temp2]"r"(temp2)
304  : "memory"
305  );
306 
307  x1 -= ((32-i_Temp)<<6)-1;
308  Y11 -= ((32-i_Temp)<<7)-2;
309  }
310  return 0;
311 }
312 
313 #if HAVE_MIPSFPU
314 #if !HAVE_MIPS32R6 && !HAVE_MIPS64R6
315 static void sbr_hf_assemble_mips(float Y1[38][64][2],
316  const float X_high[64][40][2],
317  SpectralBandReplication *sbr, SBRData *ch_data,
318  const int e_a[2])
319 {
320  int e, i, j, m;
321  const int h_SL = 4 * !sbr->bs_smoothing_mode;
322  const int kx = sbr->kx[1];
323  const int m_max = sbr->m[1];
324  static const float h_smooth[5] = {
325  0.33333333333333,
326  0.30150283239582,
327  0.21816949906249,
328  0.11516383427084,
329  0.03183050093751,
330  };
331 
332  float (*g_temp)[48] = ch_data->g_temp, (*q_temp)[48] = ch_data->q_temp;
333  int indexnoise = ch_data->f_indexnoise;
334  int indexsine = ch_data->f_indexsine;
335  float *g_temp1, *q_temp1, *pok, *pok1;
336  float temp1, temp2, temp3, temp4;
337  int size = m_max;
338 
339  if (sbr->reset) {
340  for (i = 0; i < h_SL; i++) {
341  memcpy(g_temp[i + 2*ch_data->t_env[0]], sbr->gain[0], m_max * sizeof(sbr->gain[0][0]));
342  memcpy(q_temp[i + 2*ch_data->t_env[0]], sbr->q_m[0], m_max * sizeof(sbr->q_m[0][0]));
343  }
344  } else if (h_SL) {
345  memcpy(g_temp[2*ch_data->t_env[0]], g_temp[2*ch_data->t_env_num_env_old], 4*sizeof(g_temp[0]));
346  memcpy(q_temp[2*ch_data->t_env[0]], q_temp[2*ch_data->t_env_num_env_old], 4*sizeof(q_temp[0]));
347  }
348 
349  for (e = 0; e < ch_data->bs_num_env; e++) {
350  for (i = 2 * ch_data->t_env[e]; i < 2 * ch_data->t_env[e + 1]; i++) {
351  g_temp1 = g_temp[h_SL + i];
352  pok = sbr->gain[e];
353  q_temp1 = q_temp[h_SL + i];
354  pok1 = sbr->q_m[e];
355 
356  /* loop unrolled 4 times */
357  for (j=0; j<(size>>2); j++) {
358  __asm__ volatile (
359  "lw %[temp1], 0(%[pok]) \n\t"
360  "lw %[temp2], 4(%[pok]) \n\t"
361  "lw %[temp3], 8(%[pok]) \n\t"
362  "lw %[temp4], 12(%[pok]) \n\t"
363  "sw %[temp1], 0(%[g_temp1]) \n\t"
364  "sw %[temp2], 4(%[g_temp1]) \n\t"
365  "sw %[temp3], 8(%[g_temp1]) \n\t"
366  "sw %[temp4], 12(%[g_temp1]) \n\t"
367  "lw %[temp1], 0(%[pok1]) \n\t"
368  "lw %[temp2], 4(%[pok1]) \n\t"
369  "lw %[temp3], 8(%[pok1]) \n\t"
370  "lw %[temp4], 12(%[pok1]) \n\t"
371  "sw %[temp1], 0(%[q_temp1]) \n\t"
372  "sw %[temp2], 4(%[q_temp1]) \n\t"
373  "sw %[temp3], 8(%[q_temp1]) \n\t"
374  "sw %[temp4], 12(%[q_temp1]) \n\t"
375  PTR_ADDIU "%[pok], %[pok], 16 \n\t"
376  PTR_ADDIU "%[g_temp1], %[g_temp1], 16 \n\t"
377  PTR_ADDIU "%[pok1], %[pok1], 16 \n\t"
378  PTR_ADDIU "%[q_temp1], %[q_temp1], 16 \n\t"
379 
380  : [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
381  [temp3]"=&r"(temp3), [temp4]"=&r"(temp4),
382  [pok]"+r"(pok), [g_temp1]"+r"(g_temp1),
383  [pok1]"+r"(pok1), [q_temp1]"+r"(q_temp1)
384  :
385  : "memory"
386  );
387  }
388 
389  for (j=0; j<(size&3); j++) {
390  __asm__ volatile (
391  "lw %[temp1], 0(%[pok]) \n\t"
392  "lw %[temp2], 0(%[pok1]) \n\t"
393  "sw %[temp1], 0(%[g_temp1]) \n\t"
394  "sw %[temp2], 0(%[q_temp1]) \n\t"
395  PTR_ADDIU "%[pok], %[pok], 4 \n\t"
396  PTR_ADDIU "%[g_temp1], %[g_temp1], 4 \n\t"
397  PTR_ADDIU "%[pok1], %[pok1], 4 \n\t"
398  PTR_ADDIU "%[q_temp1], %[q_temp1], 4 \n\t"
399 
400  : [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
401  [temp3]"=&r"(temp3), [temp4]"=&r"(temp4),
402  [pok]"+r"(pok), [g_temp1]"+r"(g_temp1),
403  [pok1]"+r"(pok1), [q_temp1]"+r"(q_temp1)
404  :
405  : "memory"
406  );
407  }
408  }
409  }
410 
411  for (e = 0; e < ch_data->bs_num_env; e++) {
412  for (i = 2 * ch_data->t_env[e]; i < 2 * ch_data->t_env[e + 1]; i++) {
413  LOCAL_ALIGNED_16(float, g_filt_tab, [48]);
414  LOCAL_ALIGNED_16(float, q_filt_tab, [48]);
415  float *g_filt, *q_filt;
416 
417  if (h_SL && e != e_a[0] && e != e_a[1]) {
418  g_filt = g_filt_tab;
419  q_filt = q_filt_tab;
420 
421  for (m = 0; m < m_max; m++) {
422  const int idx1 = i + h_SL;
423  g_filt[m] = 0.0f;
424  q_filt[m] = 0.0f;
425 
426  for (j = 0; j <= h_SL; j++) {
427  g_filt[m] += g_temp[idx1 - j][m] * h_smooth[j];
428  q_filt[m] += q_temp[idx1 - j][m] * h_smooth[j];
429  }
430  }
431  } else {
432  g_filt = g_temp[i + h_SL];
433  q_filt = q_temp[i];
434  }
435 
436  sbr->dsp.hf_g_filt(Y1[i] + kx, X_high + kx, g_filt, m_max,
437  i + ENVELOPE_ADJUSTMENT_OFFSET);
438 
439  if (e != e_a[0] && e != e_a[1]) {
440  sbr->dsp.hf_apply_noise[indexsine](Y1[i] + kx, sbr->s_m[e],
441  q_filt, indexnoise,
442  kx, m_max);
443  } else {
444  int idx = indexsine&1;
445  int A = (1-((indexsine+(kx & 1))&2));
446  int B = (A^(-idx)) + idx;
447  float *out = &Y1[i][kx][idx];
448  float *in = sbr->s_m[e];
449  float temp0, temp1, temp2, temp3, temp4, temp5;
450  float A_f = (float)A;
451  float B_f = (float)B;
452 
453  for (m = 0; m+1 < m_max; m+=2) {
454 
455  temp2 = out[0];
456  temp3 = out[2];
457 
458  __asm__ volatile(
459  "lwc1 %[temp0], 0(%[in]) \n\t"
460  "lwc1 %[temp1], 4(%[in]) \n\t"
461  "madd.s %[temp4], %[temp2], %[temp0], %[A_f] \n\t"
462  "madd.s %[temp5], %[temp3], %[temp1], %[B_f] \n\t"
463  "swc1 %[temp4], 0(%[out]) \n\t"
464  "swc1 %[temp5], 8(%[out]) \n\t"
465  PTR_ADDIU "%[in], %[in], 8 \n\t"
466  PTR_ADDIU "%[out], %[out], 16 \n\t"
467 
468  : [temp0]"=&f" (temp0), [temp1]"=&f"(temp1),
469  [temp4]"=&f" (temp4), [temp5]"=&f"(temp5),
470  [in]"+r"(in), [out]"+r"(out)
471  : [A_f]"f"(A_f), [B_f]"f"(B_f), [temp2]"f"(temp2),
472  [temp3]"f"(temp3)
473  : "memory"
474  );
475  }
476  if(m_max&1)
477  out[2*m ] += in[m ] * A;
478  }
479  indexnoise = (indexnoise + m_max) & 0x1ff;
480  indexsine = (indexsine + 1) & 3;
481  }
482  }
483  ch_data->f_indexnoise = indexnoise;
484  ch_data->f_indexsine = indexsine;
485 }
486 
487 static void sbr_hf_inverse_filter_mips(SBRDSPContext *dsp,
488  float (*alpha0)[2], float (*alpha1)[2],
489  const float X_low[32][40][2], int k0)
490 {
491  int k;
492  float temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7, c;
493  float *phi1, *alpha_1, *alpha_0, res1, res2, temp_real, temp_im;
494 
495  c = 1.000001f;
496 
497  for (k = 0; k < k0; k++) {
498  LOCAL_ALIGNED_16(float, phi, [3], [2][2]);
499  float dk;
500  phi1 = &phi[0][0][0];
501  alpha_1 = &alpha1[k][0];
502  alpha_0 = &alpha0[k][0];
503  dsp->autocorrelate(X_low[k], phi);
504 
505  __asm__ volatile (
506  "lwc1 %[temp0], 40(%[phi1]) \n\t"
507  "lwc1 %[temp1], 16(%[phi1]) \n\t"
508  "lwc1 %[temp2], 24(%[phi1]) \n\t"
509  "lwc1 %[temp3], 28(%[phi1]) \n\t"
510  "mul.s %[dk], %[temp0], %[temp1] \n\t"
511  "lwc1 %[temp4], 0(%[phi1]) \n\t"
512  "mul.s %[res2], %[temp2], %[temp2] \n\t"
513  "lwc1 %[temp5], 4(%[phi1]) \n\t"
514  "madd.s %[res2], %[res2], %[temp3], %[temp3] \n\t"
515  "lwc1 %[temp6], 8(%[phi1]) \n\t"
516  "div.s %[res2], %[res2], %[c] \n\t"
517  "lwc1 %[temp0], 12(%[phi1]) \n\t"
518  "sub.s %[dk], %[dk], %[res2] \n\t"
519 
520  : [temp0]"=&f"(temp0), [temp1]"=&f"(temp1), [temp2]"=&f"(temp2),
521  [temp3]"=&f"(temp3), [temp4]"=&f"(temp4), [temp5]"=&f"(temp5),
522  [temp6]"=&f"(temp6), [res2]"=&f"(res2), [dk]"=&f"(dk)
523  : [phi1]"r"(phi1), [c]"f"(c)
524  : "memory"
525  );
526 
527  if (!dk) {
528  alpha_1[0] = 0;
529  alpha_1[1] = 0;
530  } else {
531  __asm__ volatile (
532  "mul.s %[temp_real], %[temp4], %[temp2] \n\t"
533  "nmsub.s %[temp_real], %[temp_real], %[temp5], %[temp3] \n\t"
534  "nmsub.s %[temp_real], %[temp_real], %[temp6], %[temp1] \n\t"
535  "mul.s %[temp_im], %[temp4], %[temp3] \n\t"
536  "madd.s %[temp_im], %[temp_im], %[temp5], %[temp2] \n\t"
537  "nmsub.s %[temp_im], %[temp_im], %[temp0], %[temp1] \n\t"
538  "div.s %[temp_real], %[temp_real], %[dk] \n\t"
539  "div.s %[temp_im], %[temp_im], %[dk] \n\t"
540  "swc1 %[temp_real], 0(%[alpha_1]) \n\t"
541  "swc1 %[temp_im], 4(%[alpha_1]) \n\t"
542 
543  : [temp_real]"=&f" (temp_real), [temp_im]"=&f"(temp_im)
544  : [phi1]"r"(phi1), [temp0]"f"(temp0), [temp1]"f"(temp1),
545  [temp2]"f"(temp2), [temp3]"f"(temp3), [temp4]"f"(temp4),
546  [temp5]"f"(temp5), [temp6]"f"(temp6),
547  [alpha_1]"r"(alpha_1), [dk]"f"(dk)
548  : "memory"
549  );
550  }
551 
552  if (!phi1[4]) {
553  alpha_0[0] = 0;
554  alpha_0[1] = 0;
555  } else {
556  __asm__ volatile (
557  "lwc1 %[temp6], 0(%[alpha_1]) \n\t"
558  "lwc1 %[temp7], 4(%[alpha_1]) \n\t"
559  "mul.s %[temp_real], %[temp6], %[temp2] \n\t"
560  "add.s %[temp_real], %[temp_real], %[temp4] \n\t"
561  "madd.s %[temp_real], %[temp_real], %[temp7], %[temp3] \n\t"
562  "mul.s %[temp_im], %[temp7], %[temp2] \n\t"
563  "add.s %[temp_im], %[temp_im], %[temp5] \n\t"
564  "nmsub.s %[temp_im], %[temp_im], %[temp6], %[temp3] \n\t"
565  "div.s %[temp_real], %[temp_real], %[temp1] \n\t"
566  "div.s %[temp_im], %[temp_im], %[temp1] \n\t"
567  "neg.s %[temp_real], %[temp_real] \n\t"
568  "neg.s %[temp_im], %[temp_im] \n\t"
569  "swc1 %[temp_real], 0(%[alpha_0]) \n\t"
570  "swc1 %[temp_im], 4(%[alpha_0]) \n\t"
571 
572  : [temp_real]"=&f"(temp_real), [temp_im]"=&f"(temp_im),
573  [temp6]"=&f"(temp6), [temp7]"=&f"(temp7),
574  [res1]"=&f"(res1), [res2]"=&f"(res2)
575  : [alpha_1]"r"(alpha_1), [alpha_0]"r"(alpha_0),
576  [temp0]"f"(temp0), [temp1]"f"(temp1), [temp2]"f"(temp2),
577  [temp3]"f"(temp3), [temp4]"f"(temp4), [temp5]"f"(temp5)
578  : "memory"
579  );
580  }
581 
582  __asm__ volatile (
583  "lwc1 %[temp1], 0(%[alpha_1]) \n\t"
584  "lwc1 %[temp2], 4(%[alpha_1]) \n\t"
585  "lwc1 %[temp_real], 0(%[alpha_0]) \n\t"
586  "lwc1 %[temp_im], 4(%[alpha_0]) \n\t"
587  "mul.s %[res1], %[temp1], %[temp1] \n\t"
588  "madd.s %[res1], %[res1], %[temp2], %[temp2] \n\t"
589  "mul.s %[res2], %[temp_real], %[temp_real] \n\t"
590  "madd.s %[res2], %[res2], %[temp_im], %[temp_im] \n\t"
591 
592  : [temp_real]"=&f"(temp_real), [temp_im]"=&f"(temp_im),
593  [temp1]"=&f"(temp1), [temp2]"=&f"(temp2),
594  [res1]"=&f"(res1), [res2]"=&f"(res2)
595  : [alpha_1]"r"(alpha_1), [alpha_0]"r"(alpha_0)
596  : "memory"
597  );
598 
599  if (res1 >= 16.0f || res2 >= 16.0f) {
600  alpha_1[0] = 0;
601  alpha_1[1] = 0;
602  alpha_0[0] = 0;
603  alpha_0[1] = 0;
604  }
605  }
606 }
607 #endif /* !HAVE_MIPS32R6 && !HAVE_MIPS64R6 */
608 #endif /* HAVE_MIPSFPU */
609 #endif /* HAVE_INLINE_ASM */
610 
611 void ff_aacsbr_func_ptr_init_mips(AACSBRContext *c)
612 {
613 #if HAVE_INLINE_ASM
614  c->sbr_lf_gen = sbr_lf_gen_mips;
615  c->sbr_x_gen = sbr_x_gen_mips;
616 #if HAVE_MIPSFPU
617 #if !HAVE_MIPS32R6 && !HAVE_MIPS64R6
618  c->sbr_hf_inverse_filter = sbr_hf_inverse_filter_mips;
619  c->sbr_hf_assemble = sbr_hf_assemble_mips;
620 #endif /* !HAVE_MIPS32R6 && !HAVE_MIPS64R6 */
621 #endif /* HAVE_MIPSFPU */
622 #endif /* HAVE_INLINE_ASM */
623 }
SpectralBandReplication::data
SBRData data[2]
Definition: sbr.h:166
SBRDSPContext
Definition: sbrdsp.h:28
out
FILE * out
Definition: movenc.c:54
ch
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(const uint8_t *) pi - 0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(const int16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(const int16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(const int32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(const int32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(const int64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64, *(const int64_t *) pi *(1.0f/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64, *(const int64_t *) pi *(1.0/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(const float *) pi *(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(const double *) pi *(INT64_C(1)<< 63))) #define FMT_PAIR_FUNC(out, in) static conv_func_type *const fmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={ FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64), };static void cpy1(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, len);} static void cpy2(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 2 *len);} static void cpy4(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 4 *len);} static void cpy8(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 8 *len);} AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags) { AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) return NULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) return NULL;if(channels==1){ in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);} ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map) { switch(av_get_bytes_per_sample(in_fmt)){ case 1:ctx->simd_f=cpy1;break;case 2:ctx->simd_f=cpy2;break;case 4:ctx->simd_f=cpy4;break;case 8:ctx->simd_f=cpy8;break;} } if(HAVE_X86ASM &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;} void swri_audio_convert_free(AudioConvert **ctx) { av_freep(ctx);} int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len) { int ch;int off=0;const int os=(out->planar ? 1 :out->ch_count) *out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask) { int planes=in->planar ? in->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;} if(ctx->out_simd_align_mask) { int planes=out->planar ? out->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;} if(ctx->simd_f &&!ctx->ch_map &&!misaligned){ off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){ if(out->planar==in->planar){ int planes=out->planar ? out->ch_count :1;for(ch=0;ch< planes;ch++){ ctx->simd_f(out-> ch ch
Definition: audioconvert.c:56
aacsbr.h
SpectralBandReplication::m
AAC_SIGNE m[2]
M' and M respectively, M is the number of QMF subbands that use SBR.
Definition: sbr.h:162
SpectralBandReplication::q_m
AAC_FLOAT q_m[7][48]
Amplitude adjusted noise scalefactors.
Definition: sbr.h:206
SBRData::t_env_num_env_old
uint8_t t_env_num_env_old
Envelope time border of the last envelope of the previous frame.
Definition: sbr.h:107
asmdefs.h
SBRData::t_env
uint8_t t_env[8]
Envelope time borders.
Definition: sbr.h:105
A
#define A(x)
Definition: vp56_arith.h:28
SpectralBandReplication::reset
int reset
Definition: sbr.h:144
W
#define W(a, i, v)
Definition: jpegls.h:124
SBRData::g_temp
AAC_FLOAT g_temp[42][48]
Definition: sbr.h:95
SBRDSPContext::autocorrelate
void(* autocorrelate)(const INTFLOAT x[40][2], AAC_FLOAT phi[3][2][2])
Definition: sbrdsp.h:36
f
#define f(width, name)
Definition: cbs_vp9.c:255
SpectralBandReplication::s_m
AAC_FLOAT s_m[7][48]
Sinusoidal levels.
Definition: sbr.h:208
SBRData::f_indexnoise
unsigned f_indexnoise
Definition: sbr.h:110
AACSBRContext
aacsbr functions pointers
Definition: sbr.h:120
aac.h
SBRDSPContext::hf_g_filt
void(* hf_g_filt)(INTFLOAT(*Y)[2], const INTFLOAT(*X_high)[40][2], const AAC_FLOAT *g_filt, int m_max, intptr_t ixh)
Definition: sbrdsp.h:40
SBRData::bs_num_env
AAC_SIGNE bs_num_env
Definition: sbr.h:69
SpectralBandReplication::bs_smoothing_mode
unsigned bs_smoothing_mode
Definition: sbr.h:154
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
ff_aacsbr_func_ptr_init_mips
void ff_aacsbr_func_ptr_init_mips(AACSBRContext *c)
Definition: aacsbr_mips.c:611
FFMAX
#define FFMAX(a, b)
Definition: common.h:94
size
int size
Definition: twinvq_data.h:11134
SpectralBandReplication::gain
AAC_FLOAT gain[7][48]
Definition: sbr.h:209
SpectralBandReplication
Spectral Band Replication.
Definition: sbr.h:139
SBRDSPContext::hf_apply_noise
void(* hf_apply_noise[4])(INTFLOAT(*Y)[2], const AAC_FLOAT *s_m, const AAC_FLOAT *q_filt, int noise, int kx, int m_max)
Definition: sbrdsp.h:42
in
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method !=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2) { ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc) { av_free(ac);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
Definition: audio_convert.c:326
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
SBRData
Spectral Band Replication per channel data.
Definition: sbr.h:62
ENVELOPE_ADJUSTMENT_OFFSET
#define ENVELOPE_ADJUSTMENT_OFFSET
Definition: aacsbr_mips.c:58
SBRData::f_indexsine
unsigned f_indexsine
Definition: sbr.h:111
SBRData::q_temp
AAC_FLOAT q_temp[42][48]
Definition: sbr.h:96
B
#define B
Definition: huffyuvdsp.h:32
PTR_ADDIU
#define PTR_ADDIU
Definition: asmdefs.h:48
LOCAL_ALIGNED_16
#define LOCAL_ALIGNED_16(t, v,...)
Definition: internal.h:131
AACContext
main AAC context
Definition: aac.h:293
SpectralBandReplication::kx
AAC_SIGNE kx[2]
kx', and kx respectively, kx is the first QMF subband where SBR is used.
Definition: sbr.h:160
SpectralBandReplication::dsp
SBRDSPContext dsp
Definition: sbr.h:213
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