blob: f2888cdd17b41cf5eb87e0ae983ff374e2d7ceea
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_log(ac->avr, AV_LOG_TRACE, "%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_log(ac->avr, AV_LOG_TRACE, "%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 | } |
417 |