CoCalc -- audio_convert

05. Matplotlib / ffmpeg-3.0 / libavresample / aarch64 / audio_convert_neon.S
⁵²⁸⁶⁸ views
1
/*
2
 * Copyright (c) 2008 Mans Rullgard <[email protected]>
3
 * Copyright (c) 2014 Janne Grunau <[email protected]>
4
 *
5
 * This file is part of FFmpeg.
6
 *
7
 * FFmpeg is free software; you can redistribute it and/or
8
 * modify it under the terms of the GNU Lesser General Public
9
 * License as published by the Free Software Foundation; either
10
 * version 2.1 of the License, or (at your option) any later version.
11
 *
12
 * FFmpeg is distributed in the hope that it will be useful,
13
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15
 * Lesser General Public License for more details.
16
 *
17
 * You should have received a copy of the GNU Lesser General Public
18
 * License along with FFmpeg; if not, write to the Free Software
19
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20
 */
21

22
#include "config.h"
23
#include "libavutil/aarch64/asm.S"
24

25
function ff_conv_flt_to_s16_neon, export=1
26
        subs            x2,  x2,  #8
27
        ld1             {v0.4s}, [x1],  #16
28
        fcvtzs          v4.4s,  v0.4s,  #31
29
        ld1             {v1.4s}, [x1],  #16
30
        fcvtzs          v5.4s,  v1.4s,  #31
31
        b.eq            3f
32
        ands            x12, x2,  #~15
33
        b.eq            2f
34
1:      subs            x12, x12, #16
35
        sqrshrn         v4.4h,  v4.4s,  #16
36
        ld1             {v2.4s}, [x1],  #16
37
        fcvtzs          v6.4s,  v2.4s,  #31
38
        sqrshrn2        v4.8h,  v5.4s,  #16
39
        ld1             {v3.4s}, [x1],  #16
40
        fcvtzs          v7.4s,  v3.4s,  #31
41
        sqrshrn         v6.4h,  v6.4s,  #16
42
        st1             {v4.8h}, [x0],  #16
43
        sqrshrn2        v6.8h,  v7.4s,  #16
44
        ld1             {v0.4s}, [x1],  #16
45
        fcvtzs          v4.4s,  v0.4s,  #31
46
        ld1             {v1.4s}, [x1],  #16
47
        fcvtzs          v5.4s,  v1.4s,  #31
48
        st1             {v6.8h}, [x0],  #16
49
        b.ne            1b
50
        ands            x2,  x2,  #15
51
        b.eq            3f
52
2:      ld1             {v2.4s}, [x1],  #16
53
        sqrshrn         v4.4h,  v4.4s,  #16
54
        fcvtzs          v6.4s,  v2.4s,  #31
55
        ld1             {v3.4s}, [x1],  #16
56
        sqrshrn2        v4.8h,  v5.4s,  #16
57
        fcvtzs          v7.4s,  v3.4s,  #31
58
        sqrshrn         v6.4h,  v6.4s,  #16
59
        st1             {v4.8h}, [x0],  #16
60
        sqrshrn2        v6.8h,  v7.4s,  #16
61
        st1             {v6.8h}, [x0]
62
        ret
63
3:      sqrshrn         v4.4h,  v4.4s,  #16
64
        sqrshrn2        v4.8h,  v5.4s,  #16
65
        st1             {v4.8h}, [x0]
66
        ret
67
endfunc
68

69
function ff_conv_fltp_to_s16_2ch_neon, export=1
70
        ldp             x4,  x5,  [x1]
71
        subs            x2,  x2,  #8
72
        ld1             {v0.4s},  [x4], #16
73
        fcvtzs          v4.4s,  v0.4s,  #31
74
        ld1             {v1.4s},  [x4], #16
75
        fcvtzs          v5.4s,  v1.4s,  #31
76
        ld1             {v2.4s},  [x5], #16
77
        fcvtzs          v6.4s,  v2.4s,  #31
78
        ld1             {v3.4s},  [x5], #16
79
        fcvtzs          v7.4s,  v3.4s,  #31
80
        b.eq            3f
81
        ands            x12, x2,  #~15
82
        b.eq            2f
83
1:      subs            x12, x12, #16
84
        ld1             {v16.4s}, [x4], #16
85
        fcvtzs          v20.4s, v16.4s, #31
86
        sri             v6.4s,  v4.4s,  #16
87
        ld1             {v17.4s}, [x4], #16
88
        fcvtzs          v21.4s, v17.4s, #31
89
        ld1             {v18.4s}, [x5], #16
90
        fcvtzs          v22.4s, v18.4s, #31
91
        ld1             {v19.4s}, [x5], #16
92
        sri             v7.4s,  v5.4s,  #16
93
        st1             {v6.4s},  [x0], #16
94
        fcvtzs          v23.4s, v19.4s, #31
95
        st1             {v7.4s},  [x0], #16
96
        sri             v22.4s, v20.4s, #16
97
        ld1             {v0.4s},  [x4], #16
98
        sri             v23.4s, v21.4s, #16
99
        st1             {v22.4s}, [x0], #16
100
        fcvtzs          v4.4s,  v0.4s,  #31
101
        ld1             {v1.4s},  [x4], #16
102
        fcvtzs          v5.4s,  v1.4s,  #31
103
        ld1             {v2.4s},  [x5], #16
104
        fcvtzs          v6.4s,  v2.4s,  #31
105
        ld1             {v3.4s},  [x5], #16
106
        fcvtzs          v7.4s,  v3.4s,  #31
107
        st1             {v23.4s}, [x0], #16
108
        b.ne            1b
109
        ands            x2,  x2,  #15
110
        b.eq            3f
111
2:      sri             v6.4s,  v4.4s,  #16
112
        ld1             {v0.4s},  [x4], #16
113
        fcvtzs          v0.4s,  v0.4s,  #31
114
        ld1             {v1.4s},  [x4], #16
115
        fcvtzs          v1.4s,  v1.4s,  #31
116
        ld1             {v2.4s},  [x5], #16
117
        fcvtzs          v2.4s,  v2.4s,  #31
118
        sri             v7.4s,  v5.4s,  #16
119
        ld1             {v3.4s},  [x5], #16
120
        fcvtzs          v3.4s,  v3.4s,  #31
121
        sri             v2.4s,  v0.4s,  #16
122
        st1             {v6.4s,v7.4s},  [x0], #32
123
        sri             v3.4s,  v1.4s,  #16
124
        st1             {v2.4s,v3.4s},  [x0], #32
125
        ret
126
3:      sri             v6.4s,  v4.4s,  #16
127
        sri             v7.4s,  v5.4s,  #16
128
        st1             {v6.4s,v7.4s},  [x0]
129
        ret
130
endfunc
131

132
function ff_conv_fltp_to_s16_neon, export=1
133
        cmp             w3,  #2
134
        b.eq            X(ff_conv_fltp_to_s16_2ch_neon)
135
        b.gt            1f
136
        ldr             x1,  [x1]
137
        b               X(ff_conv_flt_to_s16_neon)
138
1:
139
        cmp             w3,  #4
140
        lsl             x12, x3,  #1
141
        b.lt            4f
142

143
5:      // 4 channels
144
        ldp             x4, x5, [x1], #16
145
        ldp             x6, x7, [x1], #16
146
        mov             w9,  w2
147
        mov             x8,  x0
148
        ld1             {v4.4s},        [x4], #16
149
        fcvtzs          v4.4s,  v4.4s,  #31
150
        ld1             {v5.4s},        [x5], #16
151
        fcvtzs          v5.4s,  v5.4s,  #31
152
        ld1             {v6.4s},        [x6], #16
153
        fcvtzs          v6.4s, v6.4s, #31
154
        ld1             {v7.4s},        [x7], #16
155
        fcvtzs          v7.4s, v7.4s, #31
156
6:
157
        subs            w9,  w9,  #8
158
        ld1             {v0.4s},        [x4], #16
159
        fcvtzs          v0.4s,  v0.4s,  #31
160
        sri             v5.4s,  v4.4s,  #16
161
        ld1             {v1.4s},        [x5], #16
162
        fcvtzs          v1.4s,  v1.4s,  #31
163
        sri             v7.4s,  v6.4s,  #16
164
        ld1             {v2.4s},        [x6], #16
165
        fcvtzs          v2.4s,  v2.4s,  #31
166
        zip1            v16.4s, v5.4s,  v7.4s
167
        ld1             {v3.4s},        [x7], #16
168
        fcvtzs          v3.4s,  v3.4s,  #31
169
        zip2            v17.4s, v5.4s,  v7.4s
170
        st1             {v16.d}[0],     [x8], x12
171
        sri             v1.4s,  v0.4s,  #16
172
        st1             {v16.d}[1],     [x8], x12
173
        sri             v3.4s,  v2.4s,  #16
174
        st1             {v17.d}[0],     [x8], x12
175
        zip1            v18.4s, v1.4s,  v3.4s
176
        st1             {v17.d}[1],     [x8], x12
177
        zip2            v19.4s, v1.4s,  v3.4s
178
        b.eq            7f
179
        ld1             {v4.4s},        [x4], #16
180
        fcvtzs          v4.4s,  v4.4s,  #31
181
        st1             {v18.d}[0],     [x8], x12
182
        ld1             {v5.4s},        [x5], #16
183
        fcvtzs          v5.4s,  v5.4s,  #31
184
        st1             {v18.d}[1],     [x8], x12
185
        ld1             {v6.4s},    [x6], #16
186
        fcvtzs          v6.4s, v6.4s, #31
187
        st1             {v19.d}[0],     [x8], x12
188
        ld1             {v7.4s},    [x7], #16
189
        fcvtzs          v7.4s, v7.4s, #31
190
        st1             {v19.d}[1],     [x8], x12
191
        b               6b
192
7:
193
        st1             {v18.d}[0],     [x8], x12
194
        st1             {v18.d}[1],     [x8], x12
195
        st1             {v19.d}[0],     [x8], x12
196
        st1             {v19.d}[1],     [x8], x12
197
        subs            w3,  w3,  #4
198
        b.eq            end
199
        cmp             w3,  #4
200
        add             x0,  x0,  #8
201
        b.ge            5b
202

203
4:      // 2 channels
204
        cmp             w3,  #2
205
        b.lt            4f
206
        ldp             x4,  x5,  [x1], #16
207
        mov             w9,  w2
208
        mov             x8,  x0
209
        tst             w9,  #8
210
        ld1             {v4.4s},        [x4], #16
211
        fcvtzs          v4.4s,  v4.4s,  #31
212
        ld1             {v5.4s},        [x5], #16
213
        fcvtzs          v5.4s,  v5.4s,  #31
214
        ld1             {v6.4s},        [x4], #16
215
        fcvtzs          v6.4s,  v6.4s,  #31
216
        ld1             {v7.4s},        [x5], #16
217
        fcvtzs          v7.4s,  v7.4s,  #31
218
        b.eq            6f
219
        subs            w9,  w9,  #8
220
        b.eq            7f
221
        sri             v5.4s,  v4.4s,  #16
222
        ld1             {v4.4s},        [x4], #16
223
        fcvtzs          v4.4s,  v4.4s,  #31
224
        st1             {v5.s}[0],      [x8], x12
225
        sri             v7.4s,  v6.4s,  #16
226
        st1             {v5.s}[1],      [x8], x12
227
        ld1             {v6.4s},        [x4], #16
228
        fcvtzs          v6.4s,  v6.4s, #31
229
        st1             {v5.s}[2],      [x8], x12
230
        st1             {v5.s}[3],      [x8], x12
231
        st1             {v7.s}[0],      [x8], x12
232
        st1             {v7.s}[1],      [x8], x12
233
        ld1             {v5.4s},        [x5], #16
234
        fcvtzs          v5.4s,  v5.4s,  #31
235
        st1             {v7.s}[2],      [x8], x12
236
        st1             {v7.s}[3],      [x8], x12
237
        ld1             {v7.4s},        [x5], #16
238
        fcvtzs          v7.4s,  v7.4s,  #31
239
6:
240
        subs            w9,  w9,  #16
241
        ld1             {v0.4s},        [x4], #16
242
        sri             v5.4s,  v4.4s,  #16
243
        fcvtzs          v0.4s,  v0.4s,  #31
244
        ld1             {v1.4s},        [x5], #16
245
        sri             v7.4s,  v6.4s,  #16
246
        st1             {v5.s}[0],      [x8], x12
247
        st1             {v5.s}[1],      [x8], x12
248
        fcvtzs          v1.4s,  v1.4s,  #31
249
        st1             {v5.s}[2],      [x8], x12
250
        st1             {v5.s}[3],      [x8], x12
251
        ld1             {v2.4s},        [x4], #16
252
        st1             {v7.s}[0],      [x8], x12
253
        fcvtzs          v2.4s,  v2.4s,  #31
254
        st1             {v7.s}[1],      [x8], x12
255
        ld1             {v3.4s},        [x5], #16
256
        st1             {v7.s}[2],      [x8], x12
257
        fcvtzs          v3.4s,  v3.4s,  #31
258
        st1             {v7.s}[3],      [x8], x12
259
        sri             v1.4s,  v0.4s,  #16
260
        sri             v3.4s,  v2.4s,  #16
261
        b.eq            6f
262
        ld1             {v4.4s},        [x4], #16
263
        st1             {v1.s}[0],      [x8], x12
264
        fcvtzs          v4.4s,  v4.4s,  #31
265
        st1             {v1.s}[1],      [x8], x12
266
        ld1             {v5.4s},        [x5], #16
267
        st1             {v1.s}[2],      [x8], x12
268
        fcvtzs          v5.4s,  v5.4s,  #31
269
        st1             {v1.s}[3],      [x8], x12
270
        ld1             {v6.4s},        [x4], #16
271
        st1             {v3.s}[0],      [x8], x12
272
        fcvtzs          v6.4s,  v6.4s,  #31
273
        st1             {v3.s}[1],      [x8], x12
274
        ld1             {v7.4s},        [x5], #16
275
        st1             {v3.s}[2],      [x8], x12
276
        fcvtzs          v7.4s,  v7.4s,  #31
277
        st1             {v3.s}[3],      [x8], x12
278
        b.gt            6b
279
6:
280
        st1             {v1.s}[0],      [x8], x12
281
        st1             {v1.s}[1],      [x8], x12
282
        st1             {v1.s}[2],      [x8], x12
283
        st1             {v1.s}[3],      [x8], x12
284
        st1             {v3.s}[0],      [x8], x12
285
        st1             {v3.s}[1],      [x8], x12
286
        st1             {v3.s}[2],      [x8], x12
287
        st1             {v3.s}[3],      [x8], x12
288
        b               8f
289
7:
290
        sri             v5.4s,  v4.4s,  #16
291
        sri             v7.4s,  v6.4s,  #16
292
        st1             {v5.s}[0],      [x8], x12
293
        st1             {v5.s}[1],      [x8], x12
294
        st1             {v5.s}[2],      [x8], x12
295
        st1             {v5.s}[3],      [x8], x12
296
        st1             {v7.s}[0],      [x8], x12
297
        st1             {v7.s}[1],      [x8], x12
298
        st1             {v7.s}[2],      [x8], x12
299
        st1             {v7.s}[3],      [x8], x12
300
8:
301
        subs            w3,  w3,  #2
302
        add             x0,  x0,  #4
303
        b.eq            end
304

305
4:      // 1 channel
306
        ldr             x4,  [x1]
307
        tst             w2,  #8
308
        mov             w9,  w2
309
        mov             x5,  x0
310
        ld1             {v0.4s},        [x4], #16
311
        fcvtzs          v0.4s,  v0.4s,  #31
312
        ld1             {v1.4s},        [x4], #16
313
        fcvtzs          v1.4s,  v1.4s,  #31
314
        b.ne            8f
315
6:
316
        subs            w9,  w9,  #16
317
        ld1             {v2.4s},        [x4], #16
318
        fcvtzs          v2.4s,  v2.4s,  #31
319
        ld1             {v3.4s},        [x4], #16
320
        fcvtzs          v3.4s,  v3.4s,  #31
321
        st1             {v0.h}[1],      [x5], x12
322
        st1             {v0.h}[3],      [x5], x12
323
        st1             {v0.h}[5],      [x5], x12
324
        st1             {v0.h}[7],      [x5], x12
325
        st1             {v1.h}[1],      [x5], x12
326
        st1             {v1.h}[3],      [x5], x12
327
        st1             {v1.h}[5],      [x5], x12
328
        st1             {v1.h}[7],      [x5], x12
329
        b.eq            7f
330
        ld1             {v0.4s},        [x4], #16
331
        fcvtzs          v0.4s,  v0.4s,  #31
332
        ld1             {v1.4s},        [x4], #16
333
        fcvtzs          v1.4s,  v1.4s,  #31
334
7:
335
        st1             {v2.h}[1],      [x5], x12
336
        st1             {v2.h}[3],      [x5], x12
337
        st1             {v2.h}[5],      [x5], x12
338
        st1             {v2.h}[7],      [x5], x12
339
        st1             {v3.h}[1],      [x5], x12
340
        st1             {v3.h}[3],      [x5], x12
341
        st1             {v3.h}[5],      [x5], x12
342
        st1             {v3.h}[7],      [x5], x12
343
        b.gt            6b
344
        ret
345
8:
346
        subs            w9,  w9,  #8
347
        st1             {v0.h}[1],      [x5], x12
348
        st1             {v0.h}[3],      [x5], x12
349
        st1             {v0.h}[5],      [x5], x12
350
        st1             {v0.h}[7],      [x5], x12
351
        st1             {v1.h}[1],      [x5], x12
352
        st1             {v1.h}[3],      [x5], x12
353
        st1             {v1.h}[5],      [x5], x12
354
        st1             {v1.h}[7],      [x5], x12
355
        b.eq            end
356
        ld1             {v0.4s},        [x4], #16
357
        fcvtzs          v0.4s,  v0.4s,  #31
358
        ld1             {v1.4s},        [x4], #16
359
        fcvtzs          v1.4s,  v1.4s,  #31
360
        b               6b
361
end:
362
        ret
363
endfunc
364

365
Product

Resources

Company
