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1 | /* |
2 | * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> | |
3 | * Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com> | |
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 <stdint.h> | |
23 | ||
24 | #include "config.h" | |
25 | #include "libavutil/common.h" | |
26 | #include "libavutil/libm.h" | |
27 | #include "libavutil/log.h" | |
28 | #include "libavutil/mem.h" | |
29 | #include "libavutil/samplefmt.h" | |
30 | #include "audio_convert.h" | |
31 | #include "audio_data.h" | |
32 | #include "dither.h" | |
33 | ||
34 | enum ConvFuncType { | |
35 | CONV_FUNC_TYPE_FLAT, | |
36 | CONV_FUNC_TYPE_INTERLEAVE, | |
37 | CONV_FUNC_TYPE_DEINTERLEAVE, | |
38 | }; | |
39 | ||
40 | typedef void (conv_func_flat)(uint8_t *out, const uint8_t *in, int len); | |
41 | ||
42 | typedef void (conv_func_interleave)(uint8_t *out, uint8_t *const *in, | |
43 | int len, int channels); | |
44 | ||
45 | typedef void (conv_func_deinterleave)(uint8_t **out, const uint8_t *in, int len, | |
46 | int channels); | |
47 | ||
48 | struct AudioConvert { | |
49 | AVAudioResampleContext *avr; | |
50 | DitherContext *dc; | |
51 | enum AVSampleFormat in_fmt; | |
52 | enum AVSampleFormat out_fmt; | |
53 | int apply_map; | |
54 | int channels; | |
55 | int planes; | |
56 | int ptr_align; | |
57 | int samples_align; | |
58 | int has_optimized_func; | |
59 | const char *func_descr; | |
60 | const char *func_descr_generic; | |
61 | enum ConvFuncType func_type; | |
62 | conv_func_flat *conv_flat; | |
63 | conv_func_flat *conv_flat_generic; | |
64 | conv_func_interleave *conv_interleave; | |
65 | conv_func_interleave *conv_interleave_generic; | |
66 | conv_func_deinterleave *conv_deinterleave; | |
67 | conv_func_deinterleave *conv_deinterleave_generic; | |
68 | }; | |
69 | ||
70 | void ff_audio_convert_set_func(AudioConvert *ac, enum AVSampleFormat out_fmt, | |
71 | enum AVSampleFormat in_fmt, int channels, | |
72 | int ptr_align, int samples_align, | |
73 | const char *descr, void *conv) | |
74 | { | |
75 | int found = 0; | |
76 | ||
77 | switch (ac->func_type) { | |
78 | case CONV_FUNC_TYPE_FLAT: | |
79 | if (av_get_packed_sample_fmt(ac->in_fmt) == in_fmt && | |
80 | av_get_packed_sample_fmt(ac->out_fmt) == out_fmt) { | |
81 | ac->conv_flat = conv; | |
82 | ac->func_descr = descr; | |
83 | ac->ptr_align = ptr_align; | |
84 | ac->samples_align = samples_align; | |
85 | if (ptr_align == 1 && samples_align == 1) { | |
86 | ac->conv_flat_generic = conv; | |
87 | ac->func_descr_generic = descr; | |
88 | } else { | |
89 | ac->has_optimized_func = 1; | |
90 | } | |
91 | found = 1; | |
92 | } | |
93 | break; | |
94 | case CONV_FUNC_TYPE_INTERLEAVE: | |
95 | if (ac->in_fmt == in_fmt && ac->out_fmt == out_fmt && | |
96 | (!channels || ac->channels == channels)) { | |
97 | ac->conv_interleave = conv; | |
98 | ac->func_descr = descr; | |
99 | ac->ptr_align = ptr_align; | |
100 | ac->samples_align = samples_align; | |
101 | if (ptr_align == 1 && samples_align == 1) { | |
102 | ac->conv_interleave_generic = conv; | |
103 | ac->func_descr_generic = descr; | |
104 | } else { | |
105 | ac->has_optimized_func = 1; | |
106 | } | |
107 | found = 1; | |
108 | } | |
109 | break; | |
110 | case CONV_FUNC_TYPE_DEINTERLEAVE: | |
111 | if (ac->in_fmt == in_fmt && ac->out_fmt == out_fmt && | |
112 | (!channels || ac->channels == channels)) { | |
113 | ac->conv_deinterleave = conv; | |
114 | ac->func_descr = descr; | |
115 | ac->ptr_align = ptr_align; | |
116 | ac->samples_align = samples_align; | |
117 | if (ptr_align == 1 && samples_align == 1) { | |
118 | ac->conv_deinterleave_generic = conv; | |
119 | ac->func_descr_generic = descr; | |
120 | } else { | |
121 | ac->has_optimized_func = 1; | |
122 | } | |
123 | found = 1; | |
124 | } | |
125 | break; | |
126 | } | |
127 | if (found) { | |
128 | av_log(ac->avr, AV_LOG_DEBUG, "audio_convert: found function: %-4s " | |
129 | "to %-4s (%s)\n", av_get_sample_fmt_name(ac->in_fmt), | |
130 | av_get_sample_fmt_name(ac->out_fmt), descr); | |
131 | } | |
132 | } | |
133 | ||
134 | #define CONV_FUNC_NAME(dst_fmt, src_fmt) conv_ ## src_fmt ## _to_ ## dst_fmt | |
135 | ||
136 | #define CONV_LOOP(otype, expr) \ | |
137 | do { \ | |
138 | *(otype *)po = expr; \ | |
139 | pi += is; \ | |
140 | po += os; \ | |
141 | } while (po < end); \ | |
142 | ||
143 | #define CONV_FUNC_FLAT(ofmt, otype, ifmt, itype, expr) \ | |
144 | static void CONV_FUNC_NAME(ofmt, ifmt)(uint8_t *out, const uint8_t *in, \ | |
145 | int len) \ | |
146 | { \ | |
147 | int is = sizeof(itype); \ | |
148 | int os = sizeof(otype); \ | |
149 | const uint8_t *pi = in; \ | |
150 | uint8_t *po = out; \ | |
151 | uint8_t *end = out + os * len; \ | |
152 | CONV_LOOP(otype, expr) \ | |
153 | } | |
154 | ||
155 | #define CONV_FUNC_INTERLEAVE(ofmt, otype, ifmt, itype, expr) \ | |
156 | static void CONV_FUNC_NAME(ofmt, ifmt)(uint8_t *out, const uint8_t **in, \ | |
157 | int len, int channels) \ | |
158 | { \ | |
159 | int ch; \ | |
160 | int out_bps = sizeof(otype); \ | |
161 | int is = sizeof(itype); \ | |
162 | int os = channels * out_bps; \ | |
163 | for (ch = 0; ch < channels; ch++) { \ | |
164 | const uint8_t *pi = in[ch]; \ | |
165 | uint8_t *po = out + ch * out_bps; \ | |
166 | uint8_t *end = po + os * len; \ | |
167 | CONV_LOOP(otype, expr) \ | |
168 | } \ | |
169 | } | |
170 | ||
171 | #define CONV_FUNC_DEINTERLEAVE(ofmt, otype, ifmt, itype, expr) \ | |
172 | static void CONV_FUNC_NAME(ofmt, ifmt)(uint8_t **out, const uint8_t *in, \ | |
173 | int len, int channels) \ | |
174 | { \ | |
175 | int ch; \ | |
176 | int in_bps = sizeof(itype); \ | |
177 | int is = channels * in_bps; \ | |
178 | int os = sizeof(otype); \ | |
179 | for (ch = 0; ch < channels; ch++) { \ | |
180 | const uint8_t *pi = in + ch * in_bps; \ | |
181 | uint8_t *po = out[ch]; \ | |
182 | uint8_t *end = po + os * len; \ | |
183 | CONV_LOOP(otype, expr) \ | |
184 | } \ | |
185 | } | |
186 | ||
187 | #define CONV_FUNC_GROUP(ofmt, otype, ifmt, itype, expr) \ | |
188 | CONV_FUNC_FLAT( ofmt, otype, ifmt, itype, expr) \ | |
189 | CONV_FUNC_INTERLEAVE( ofmt, otype, ifmt ## P, itype, expr) \ | |
190 | CONV_FUNC_DEINTERLEAVE(ofmt ## P, otype, ifmt, itype, expr) | |
191 | ||
192 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_U8, uint8_t, *(const uint8_t *)pi) | |
193 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_U8, uint8_t, (*(const uint8_t *)pi - 0x80) << 8) | |
194 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_U8, uint8_t, (*(const uint8_t *)pi - 0x80) << 24) | |
195 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t, (*(const uint8_t *)pi - 0x80) * (1.0f / (1 << 7))) | |
196 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t, (*(const uint8_t *)pi - 0x80) * (1.0 / (1 << 7))) | |
197 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t, (*(const int16_t *)pi >> 8) + 0x80) | |
198 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *)pi) | |
199 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *)pi << 16) | |
200 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *)pi * (1.0f / (1 << 15))) | |
201 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *)pi * (1.0 / (1 << 15))) | |
202 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t, (*(const int32_t *)pi >> 24) + 0x80) | |
203 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *)pi >> 16) | |
204 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *)pi) | |
205 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *)pi * (1.0f / (1U << 31))) | |
206 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *)pi * (1.0 / (1U << 31))) | |
207 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8( lrintf(*(const float *)pi * (1 << 7)) + 0x80)) | |
208 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16( lrintf(*(const float *)pi * (1 << 15)))) | |
209 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *)pi * (1U << 31)))) | |
210 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_FLT, float, *(const float *)pi) | |
211 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_FLT, float, *(const float *)pi) | |
212 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8( lrint(*(const double *)pi * (1 << 7)) + 0x80)) | |
213 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16( lrint(*(const double *)pi * (1 << 15)))) | |
214 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *)pi * (1U << 31)))) | |
215 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_DBL, double, *(const double *)pi) | |
216 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_DBL, double, *(const double *)pi) | |
217 | ||
218 | #define SET_CONV_FUNC_GROUP(ofmt, ifmt) \ | |
219 | ff_audio_convert_set_func(ac, ofmt, ifmt, 0, 1, 1, "C", CONV_FUNC_NAME(ofmt, ifmt)); \ | |
220 | ff_audio_convert_set_func(ac, ofmt ## P, ifmt, 0, 1, 1, "C", CONV_FUNC_NAME(ofmt ## P, ifmt)); \ | |
221 | ff_audio_convert_set_func(ac, ofmt, ifmt ## P, 0, 1, 1, "C", CONV_FUNC_NAME(ofmt, ifmt ## P)); | |
222 | ||
223 | static void set_generic_function(AudioConvert *ac) | |
224 | { | |
225 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8) | |
226 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8) | |
227 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8) | |
228 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8) | |
229 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8) | |
230 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16) | |
231 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16) | |
232 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16) | |
233 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16) | |
234 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16) | |
235 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32) | |
236 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32) | |
237 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32) | |
238 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32) | |
239 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32) | |
240 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT) | |
241 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT) | |
242 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT) | |
243 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT) | |
244 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT) | |
245 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL) | |
246 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL) | |
247 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL) | |
248 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL) | |
249 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL) | |
250 | } | |
251 | ||
252 | void ff_audio_convert_free(AudioConvert **ac) | |
253 | { | |
254 | if (!*ac) | |
255 | return; | |
256 | ff_dither_free(&(*ac)->dc); | |
257 | av_freep(ac); | |
258 | } | |
259 | ||
260 | AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, | |
261 | enum AVSampleFormat out_fmt, | |
262 | enum AVSampleFormat in_fmt, | |
263 | int channels, int sample_rate, | |
264 | int apply_map) | |
265 | { | |
266 | AudioConvert *ac; | |
267 | int in_planar, out_planar; | |
268 | ||
269 | ac = av_mallocz(sizeof(*ac)); | |
270 | if (!ac) | |
271 | return NULL; | |
272 | ||
273 | ac->avr = avr; | |
274 | ac->out_fmt = out_fmt; | |
275 | ac->in_fmt = in_fmt; | |
276 | ac->channels = channels; | |
277 | ac->apply_map = apply_map; | |
278 | ||
279 | if (avr->dither_method != AV_RESAMPLE_DITHER_NONE && | |
280 | av_get_packed_sample_fmt(out_fmt) == AV_SAMPLE_FMT_S16 && | |
281 | av_get_bytes_per_sample(in_fmt) > 2) { | |
282 | ac->dc = ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, | |
283 | apply_map); | |
284 | if (!ac->dc) { | |
285 | av_free(ac); | |
286 | return NULL; | |
287 | } | |
288 | return ac; | |
289 | } | |
290 | ||
291 | in_planar = ff_sample_fmt_is_planar(in_fmt, channels); | |
292 | out_planar = ff_sample_fmt_is_planar(out_fmt, channels); | |
293 | ||
294 | if (in_planar == out_planar) { | |
295 | ac->func_type = CONV_FUNC_TYPE_FLAT; | |
296 | ac->planes = in_planar ? ac->channels : 1; | |
297 | } else if (in_planar) | |
298 | ac->func_type = CONV_FUNC_TYPE_INTERLEAVE; | |
299 | else | |
300 | ac->func_type = CONV_FUNC_TYPE_DEINTERLEAVE; | |
301 | ||
302 | set_generic_function(ac); | |
303 | ||
304 | if (ARCH_AARCH64) | |
305 | ff_audio_convert_init_aarch64(ac); | |
306 | if (ARCH_ARM) | |
307 | ff_audio_convert_init_arm(ac); | |
308 | if (ARCH_X86) | |
309 | ff_audio_convert_init_x86(ac); | |
310 | ||
311 | return ac; | |
312 | } | |
313 | ||
314 | int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) | |
315 | { | |
316 | int use_generic = 1; | |
317 | int len = in->nb_samples; | |
318 | int p; | |
319 | ||
320 | if (ac->dc) { | |
321 | /* dithered conversion */ | |
322 | av_dlog(ac->avr, "%d samples - audio_convert: %s to %s (dithered)\n", | |
323 | len, av_get_sample_fmt_name(ac->in_fmt), | |
324 | av_get_sample_fmt_name(ac->out_fmt)); | |
325 | ||
326 | return ff_convert_dither(ac->dc, out, in); | |
327 | } | |
328 | ||
329 | /* determine whether to use the optimized function based on pointer and | |
330 | samples alignment in both the input and output */ | |
331 | if (ac->has_optimized_func) { | |
332 | int ptr_align = FFMIN(in->ptr_align, out->ptr_align); | |
333 | int samples_align = FFMIN(in->samples_align, out->samples_align); | |
334 | int aligned_len = FFALIGN(len, ac->samples_align); | |
335 | if (!(ptr_align % ac->ptr_align) && samples_align >= aligned_len) { | |
336 | len = aligned_len; | |
337 | use_generic = 0; | |
338 | } | |
339 | } | |
340 | av_dlog(ac->avr, "%d samples - audio_convert: %s to %s (%s)\n", len, | |
341 | av_get_sample_fmt_name(ac->in_fmt), | |
342 | av_get_sample_fmt_name(ac->out_fmt), | |
343 | use_generic ? ac->func_descr_generic : ac->func_descr); | |
344 | ||
345 | if (ac->apply_map) { | |
346 | ChannelMapInfo *map = &ac->avr->ch_map_info; | |
347 | ||
348 | if (!ff_sample_fmt_is_planar(ac->out_fmt, ac->channels)) { | |
349 | av_log(ac->avr, AV_LOG_ERROR, "cannot remap packed format during conversion\n"); | |
350 | return AVERROR(EINVAL); | |
351 | } | |
352 | ||
353 | if (map->do_remap) { | |
354 | if (ff_sample_fmt_is_planar(ac->in_fmt, ac->channels)) { | |
355 | conv_func_flat *convert = use_generic ? ac->conv_flat_generic : | |
356 | ac->conv_flat; | |
357 | ||
358 | for (p = 0; p < ac->planes; p++) | |
359 | if (map->channel_map[p] >= 0) | |
360 | convert(out->data[p], in->data[map->channel_map[p]], len); | |
361 | } else { | |
362 | uint8_t *data[AVRESAMPLE_MAX_CHANNELS]; | |
363 | conv_func_deinterleave *convert = use_generic ? | |
364 | ac->conv_deinterleave_generic : | |
365 | ac->conv_deinterleave; | |
366 | ||
367 | for (p = 0; p < ac->channels; p++) | |
368 | data[map->input_map[p]] = out->data[p]; | |
369 | ||
370 | convert(data, in->data[0], len, ac->channels); | |
371 | } | |
372 | } | |
373 | if (map->do_copy || map->do_zero) { | |
374 | for (p = 0; p < ac->planes; p++) { | |
375 | if (map->channel_copy[p]) | |
376 | memcpy(out->data[p], out->data[map->channel_copy[p]], | |
377 | len * out->stride); | |
378 | else if (map->channel_zero[p]) | |
379 | av_samples_set_silence(&out->data[p], 0, len, 1, ac->out_fmt); | |
380 | } | |
381 | } | |
382 | } else { | |
383 | switch (ac->func_type) { | |
384 | case CONV_FUNC_TYPE_FLAT: { | |
385 | if (!in->is_planar) | |
386 | len *= in->channels; | |
387 | if (use_generic) { | |
388 | for (p = 0; p < ac->planes; p++) | |
389 | ac->conv_flat_generic(out->data[p], in->data[p], len); | |
390 | } else { | |
391 | for (p = 0; p < ac->planes; p++) | |
392 | ac->conv_flat(out->data[p], in->data[p], len); | |
393 | } | |
394 | break; | |
395 | } | |
396 | case CONV_FUNC_TYPE_INTERLEAVE: | |
397 | if (use_generic) | |
398 | ac->conv_interleave_generic(out->data[0], in->data, len, | |
399 | ac->channels); | |
400 | else | |
401 | ac->conv_interleave(out->data[0], in->data, len, ac->channels); | |
402 | break; | |
403 | case CONV_FUNC_TYPE_DEINTERLEAVE: | |
404 | if (use_generic) | |
405 | ac->conv_deinterleave_generic(out->data, in->data[0], len, | |
406 | ac->channels); | |
407 | else | |
408 | ac->conv_deinterleave(out->data, in->data[0], len, | |
409 | ac->channels); | |
410 | break; | |
411 | } | |
412 | } | |
413 | ||
414 | out->nb_samples = in->nb_samples; | |
415 | return 0; | |
416 | } |