| 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 | } |