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| 1 /* Copyright (C) 2002-2006 Jean-Marc Valin |
| 2 File: sb_celp.c |
| 3 |
| 4 Redistribution and use in source and binary forms, with or without |
| 5 modification, are permitted provided that the following conditions |
| 6 are met: |
| 7 |
| 8 - Redistributions of source code must retain the above copyright |
| 9 notice, this list of conditions and the following disclaimer. |
| 10 |
| 11 - Redistributions in binary form must reproduce the above copyright |
| 12 notice, this list of conditions and the following disclaimer in the |
| 13 documentation and/or other materials provided with the distribution. |
| 14 |
| 15 - Neither the name of the Xiph.org Foundation nor the names of its |
| 16 contributors may be used to endorse or promote products derived from |
| 17 this software without specific prior written permission. |
| 18 |
| 19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 20 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 21 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 22 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR |
| 23 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 24 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 25 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 26 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 27 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 28 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 29 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 30 */ |
| 31 |
| 32 #ifdef HAVE_CONFIG_H |
| 33 #include "config.h" |
| 34 #endif |
| 35 |
| 36 #include <math.h> |
| 37 #include "sb_celp.h" |
| 38 #include "filters.h" |
| 39 #include "lpc.h" |
| 40 #include "lsp.h" |
| 41 #include "stack_alloc.h" |
| 42 #include "cb_search.h" |
| 43 #include "quant_lsp.h" |
| 44 #include "vq.h" |
| 45 #include "ltp.h" |
| 46 #include "arch.h" |
| 47 #include "math_approx.h" |
| 48 #include "os_support.h" |
| 49 |
| 50 #ifndef NULL |
| 51 #define NULL 0 |
| 52 #endif |
| 53 |
| 54 /* Default size for the encoder and decoder stack (can be changed at compile tim
e). |
| 55 This does not apply when using variable-size arrays or alloca. */ |
| 56 #ifndef SB_ENC_STACK |
| 57 #define SB_ENC_STACK (10000*sizeof(spx_sig_t)) |
| 58 #endif |
| 59 |
| 60 #ifndef SB_DEC_STACK |
| 61 #define SB_DEC_STACK (6000*sizeof(spx_sig_t)) |
| 62 #endif |
| 63 |
| 64 |
| 65 #ifdef DISABLE_WIDEBAND |
| 66 void *sb_encoder_init(const SpeexMode *m) |
| 67 { |
| 68 speex_fatal("Wideband and Ultra-wideband are disabled"); |
| 69 return NULL; |
| 70 } |
| 71 void sb_encoder_destroy(void *state) |
| 72 { |
| 73 speex_fatal("Wideband and Ultra-wideband are disabled"); |
| 74 } |
| 75 int sb_encode(void *state, void *vin, SpeexBits *bits) |
| 76 { |
| 77 speex_fatal("Wideband and Ultra-wideband are disabled"); |
| 78 return -2; |
| 79 } |
| 80 void *sb_decoder_init(const SpeexMode *m) |
| 81 { |
| 82 speex_fatal("Wideband and Ultra-wideband are disabled"); |
| 83 return NULL; |
| 84 } |
| 85 void sb_decoder_destroy(void *state) |
| 86 { |
| 87 speex_fatal("Wideband and Ultra-wideband are disabled"); |
| 88 } |
| 89 int sb_decode(void *state, SpeexBits *bits, void *vout) |
| 90 { |
| 91 speex_fatal("Wideband and Ultra-wideband are disabled"); |
| 92 return -2; |
| 93 } |
| 94 int sb_encoder_ctl(void *state, int request, void *ptr) |
| 95 { |
| 96 speex_fatal("Wideband and Ultra-wideband are disabled"); |
| 97 return -2; |
| 98 } |
| 99 int sb_decoder_ctl(void *state, int request, void *ptr) |
| 100 { |
| 101 speex_fatal("Wideband and Ultra-wideband are disabled"); |
| 102 return -2; |
| 103 } |
| 104 #else |
| 105 |
| 106 |
| 107 #ifndef M_PI |
| 108 #define M_PI 3.14159265358979323846 /* pi */ |
| 109 #endif |
| 110 |
| 111 #define sqr(x) ((x)*(x)) |
| 112 |
| 113 #define SUBMODE(x) st->submodes[st->submodeID]->x |
| 114 |
| 115 #ifdef FIXED_POINT |
| 116 static const spx_word16_t gc_quant_bound[16] = {125, 164, 215, 282, 370, 484, 63
5, 832, 1090, 1428, 1871, 2452, 3213, 4210, 5516, 7228}; |
| 117 static const spx_word16_t fold_quant_bound[32] = { |
| 118 39, 44, 50, 57, 64, 73, 83, 94, |
| 119 106, 120, 136, 154, 175, 198, 225, 255, |
| 120 288, 327, 370, 420, 476, 539, 611, 692, |
| 121 784, 889, 1007, 1141, 1293, 1465, 1660, 1881}; |
| 122 #define LSP_MARGIN 410 |
| 123 #define LSP_DELTA1 6553 |
| 124 #define LSP_DELTA2 1638 |
| 125 |
| 126 #else |
| 127 |
| 128 static const spx_word16_t gc_quant_bound[16] = { |
| 129 0.97979, 1.28384, 1.68223, 2.20426, 2.88829, 3.78458, 4.95900, 6.49787, |
| 130 8.51428, 11.15642, 14.61846, 19.15484, 25.09895, 32.88761, 43.09325, 56.46
588}; |
| 131 static const spx_word16_t fold_quant_bound[32] = { |
| 132 0.30498, 0.34559, 0.39161, 0.44375, 0.50283, 0.56979, 0.64565, 0.73162, |
| 133 0.82903, 0.93942, 1.06450, 1.20624, 1.36685, 1.54884, 1.75506, 1.98875, |
| 134 2.25355, 2.55360, 2.89361, 3.27889, 3.71547, 4.21018, 4.77076, 5.40598, |
| 135 6.12577, 6.94141, 7.86565, 8.91295, 10.09969, 11.44445, 12.96826, 14.69497}; |
| 136 |
| 137 #define LSP_MARGIN .05 |
| 138 #define LSP_DELTA1 .2 |
| 139 #define LSP_DELTA2 .05 |
| 140 |
| 141 #endif |
| 142 |
| 143 #define QMF_ORDER 64 |
| 144 |
| 145 #ifdef FIXED_POINT |
| 146 static const spx_word16_t h0[64] = {2, -7, -7, 18, 15, -39, -25, 75, 35, -130, -
41, 212, 38, -327, -17, 483, -32, -689, 124, 956, -283, -1307, 543, 1780, -973,
-2467, 1733, 3633, -3339, -6409, 9059, 30153, 30153, 9059, -6409, -3339, 3633, 1
733, -2467, -973, 1780, 543, -1307, -283, 956, 124, -689, -32, 483, -17, -327, 3
8, 212, -41, -130, 35, 75, -25, -39, 15, 18, -7, -7, 2}; |
| 147 |
| 148 #else |
| 149 static const float h0[64] = { |
| 150 3.596189e-05f, -0.0001123515f, |
| 151 -0.0001104587f, 0.0002790277f, |
| 152 0.0002298438f, -0.0005953563f, |
| 153 -0.0003823631f, 0.00113826f, |
| 154 0.0005308539f, -0.001986177f, |
| 155 -0.0006243724f, 0.003235877f, |
| 156 0.0005743159f, -0.004989147f, |
| 157 -0.0002584767f, 0.007367171f, |
| 158 -0.0004857935f, -0.01050689f, |
| 159 0.001894714f, 0.01459396f, |
| 160 -0.004313674f, -0.01994365f, |
| 161 0.00828756f, 0.02716055f, |
| 162 -0.01485397f, -0.03764973f, |
| 163 0.026447f, 0.05543245f, |
| 164 -0.05095487f, -0.09779096f, |
| 165 0.1382363f, 0.4600981f, |
| 166 0.4600981f, 0.1382363f, |
| 167 -0.09779096f, -0.05095487f, |
| 168 0.05543245f, 0.026447f, |
| 169 -0.03764973f, -0.01485397f, |
| 170 0.02716055f, 0.00828756f, |
| 171 -0.01994365f, -0.004313674f, |
| 172 0.01459396f, 0.001894714f, |
| 173 -0.01050689f, -0.0004857935f, |
| 174 0.007367171f, -0.0002584767f, |
| 175 -0.004989147f, 0.0005743159f, |
| 176 0.003235877f, -0.0006243724f, |
| 177 -0.001986177f, 0.0005308539f, |
| 178 0.00113826f, -0.0003823631f, |
| 179 -0.0005953563f, 0.0002298438f, |
| 180 0.0002790277f, -0.0001104587f, |
| 181 -0.0001123515f, 3.596189e-05f |
| 182 }; |
| 183 |
| 184 #endif |
| 185 |
| 186 extern const spx_word16_t lag_window[]; |
| 187 extern const spx_word16_t lpc_window[]; |
| 188 |
| 189 |
| 190 void *sb_encoder_init(const SpeexMode *m) |
| 191 { |
| 192 int i; |
| 193 spx_int32_t tmp; |
| 194 SBEncState *st; |
| 195 const SpeexSBMode *mode; |
| 196 |
| 197 st = (SBEncState*)speex_alloc(sizeof(SBEncState)); |
| 198 if (!st) |
| 199 return NULL; |
| 200 st->mode = m; |
| 201 mode = (const SpeexSBMode*)m->mode; |
| 202 |
| 203 |
| 204 st->st_low = speex_encoder_init(mode->nb_mode); |
| 205 #if defined(VAR_ARRAYS) || defined (USE_ALLOCA) |
| 206 st->stack = NULL; |
| 207 #else |
| 208 /*st->stack = (char*)speex_alloc_scratch(SB_ENC_STACK);*/ |
| 209 speex_encoder_ctl(st->st_low, SPEEX_GET_STACK, &st->stack); |
| 210 #endif |
| 211 |
| 212 st->full_frame_size = 2*mode->frameSize; |
| 213 st->frame_size = mode->frameSize; |
| 214 st->subframeSize = mode->subframeSize; |
| 215 st->nbSubframes = mode->frameSize/mode->subframeSize; |
| 216 st->windowSize = st->frame_size+st->subframeSize; |
| 217 st->lpcSize=mode->lpcSize; |
| 218 |
| 219 st->encode_submode = 1; |
| 220 st->submodes=mode->submodes; |
| 221 st->submodeSelect = st->submodeID=mode->defaultSubmode; |
| 222 |
| 223 tmp=9; |
| 224 speex_encoder_ctl(st->st_low, SPEEX_SET_QUALITY, &tmp); |
| 225 tmp=1; |
| 226 speex_encoder_ctl(st->st_low, SPEEX_SET_WIDEBAND, &tmp); |
| 227 |
| 228 st->lpc_floor = mode->lpc_floor; |
| 229 st->gamma1=mode->gamma1; |
| 230 st->gamma2=mode->gamma2; |
| 231 st->first=1; |
| 232 |
| 233 st->high=(spx_word16_t*)speex_alloc((st->windowSize-st->frame_size)*sizeof(sp
x_word16_t)); |
| 234 |
| 235 st->h0_mem=(spx_word16_t*)speex_alloc((QMF_ORDER)*sizeof(spx_word16_t)); |
| 236 st->h1_mem=(spx_word16_t*)speex_alloc((QMF_ORDER)*sizeof(spx_word16_t)); |
| 237 |
| 238 st->window= lpc_window; |
| 239 |
| 240 st->lagWindow = lag_window; |
| 241 |
| 242 st->old_lsp = (spx_lsp_t*)speex_alloc(st->lpcSize*sizeof(spx_lsp_t)); |
| 243 st->old_qlsp = (spx_lsp_t*)speex_alloc(st->lpcSize*sizeof(spx_lsp_t)); |
| 244 st->interp_qlpc = (spx_coef_t*)speex_alloc(st->lpcSize*sizeof(spx_coef_t)); |
| 245 st->pi_gain = (spx_word32_t*)speex_alloc((st->nbSubframes)*sizeof(spx_word32_
t)); |
| 246 st->exc_rms = (spx_word16_t*)speex_alloc((st->nbSubframes)*sizeof(spx_word16_
t)); |
| 247 st->innov_rms_save = NULL; |
| 248 |
| 249 st->mem_sp = (spx_mem_t*)speex_alloc((st->lpcSize)*sizeof(spx_mem_t)); |
| 250 st->mem_sp2 = (spx_mem_t*)speex_alloc((st->lpcSize)*sizeof(spx_mem_t)); |
| 251 st->mem_sw = (spx_mem_t*)speex_alloc((st->lpcSize)*sizeof(spx_mem_t)); |
| 252 |
| 253 for (i=0;i<st->lpcSize;i++) |
| 254 st->old_lsp[i]= DIV32(MULT16_16(QCONST16(3.1415927f, LSP_SHIFT), i+1), st-
>lpcSize+1); |
| 255 |
| 256 #ifndef DISABLE_VBR |
| 257 st->vbr_quality = 8; |
| 258 st->vbr_enabled = 0; |
| 259 st->vbr_max = 0; |
| 260 st->vbr_max_high = 20000; /* We just need a big value here */ |
| 261 st->vad_enabled = 0; |
| 262 st->abr_enabled = 0; |
| 263 st->relative_quality=0; |
| 264 #endif /* #ifndef DISABLE_VBR */ |
| 265 |
| 266 st->complexity=2; |
| 267 speex_encoder_ctl(st->st_low, SPEEX_GET_SAMPLING_RATE, &st->sampling_rate); |
| 268 st->sampling_rate*=2; |
| 269 #ifdef ENABLE_VALGRIND |
| 270 VALGRIND_MAKE_READABLE(st, (st->stack-(char*)st)); |
| 271 #endif |
| 272 return st; |
| 273 } |
| 274 |
| 275 void sb_encoder_destroy(void *state) |
| 276 { |
| 277 SBEncState *st=(SBEncState*)state; |
| 278 |
| 279 speex_encoder_destroy(st->st_low); |
| 280 #if !(defined(VAR_ARRAYS) || defined (USE_ALLOCA)) |
| 281 /*speex_free_scratch(st->stack);*/ |
| 282 #endif |
| 283 |
| 284 speex_free(st->high); |
| 285 |
| 286 speex_free(st->h0_mem); |
| 287 speex_free(st->h1_mem); |
| 288 |
| 289 speex_free(st->old_lsp); |
| 290 speex_free(st->old_qlsp); |
| 291 speex_free(st->interp_qlpc); |
| 292 speex_free(st->pi_gain); |
| 293 speex_free(st->exc_rms); |
| 294 |
| 295 speex_free(st->mem_sp); |
| 296 speex_free(st->mem_sp2); |
| 297 speex_free(st->mem_sw); |
| 298 |
| 299 |
| 300 speex_free(st); |
| 301 } |
| 302 |
| 303 |
| 304 int sb_encode(void *state, void *vin, SpeexBits *bits) |
| 305 { |
| 306 SBEncState *st; |
| 307 int i, roots, sub; |
| 308 char *stack; |
| 309 VARDECL(spx_mem_t *mem); |
| 310 VARDECL(spx_sig_t *innov); |
| 311 VARDECL(spx_word16_t *target); |
| 312 VARDECL(spx_word16_t *syn_resp); |
| 313 VARDECL(spx_word32_t *low_pi_gain); |
| 314 spx_word16_t *low; |
| 315 spx_word16_t *high; |
| 316 VARDECL(spx_word16_t *low_exc_rms); |
| 317 VARDECL(spx_word16_t *low_innov_rms); |
| 318 const SpeexSBMode *mode; |
| 319 spx_int32_t dtx; |
| 320 spx_word16_t *in = (spx_word16_t*)vin; |
| 321 spx_word16_t e_low=0, e_high=0; |
| 322 VARDECL(spx_coef_t *lpc); |
| 323 VARDECL(spx_coef_t *interp_lpc); |
| 324 VARDECL(spx_coef_t *bw_lpc1); |
| 325 VARDECL(spx_coef_t *bw_lpc2); |
| 326 VARDECL(spx_lsp_t *lsp); |
| 327 VARDECL(spx_lsp_t *qlsp); |
| 328 VARDECL(spx_lsp_t *interp_lsp); |
| 329 VARDECL(spx_lsp_t *interp_qlsp); |
| 330 |
| 331 st = (SBEncState*)state; |
| 332 stack=st->stack; |
| 333 mode = (const SpeexSBMode*)(st->mode->mode); |
| 334 low = in; |
| 335 high = in+st->frame_size; |
| 336 |
| 337 /* High-band buffering / sync with low band */ |
| 338 /* Compute the two sub-bands by filtering with QMF h0*/ |
| 339 qmf_decomp(in, h0, low, high, st->full_frame_size, QMF_ORDER, st->h0_mem, sta
ck); |
| 340 |
| 341 #ifndef DISABLE_VBR |
| 342 if (st->vbr_enabled || st->vad_enabled) |
| 343 { |
| 344 /* Need to compute things here before the signal is trashed by the encoder
*/ |
| 345 /*FIXME: Are the two signals (low, high) in sync? */ |
| 346 e_low = compute_rms16(low, st->frame_size); |
| 347 e_high = compute_rms16(high, st->frame_size); |
| 348 } |
| 349 #endif /* #ifndef DISABLE_VBR */ |
| 350 |
| 351 ALLOC(low_innov_rms, st->nbSubframes, spx_word16_t); |
| 352 speex_encoder_ctl(st->st_low, SPEEX_SET_INNOVATION_SAVE, low_innov_rms); |
| 353 /* Encode the narrowband part*/ |
| 354 speex_encode_native(st->st_low, low, bits); |
| 355 |
| 356 high = high - (st->windowSize-st->frame_size); |
| 357 SPEEX_COPY(high, st->high, st->windowSize-st->frame_size); |
| 358 SPEEX_COPY(st->high, &high[st->frame_size], st->windowSize-st->frame_size); |
| 359 |
| 360 |
| 361 ALLOC(low_pi_gain, st->nbSubframes, spx_word32_t); |
| 362 ALLOC(low_exc_rms, st->nbSubframes, spx_word16_t); |
| 363 speex_encoder_ctl(st->st_low, SPEEX_GET_PI_GAIN, low_pi_gain); |
| 364 speex_encoder_ctl(st->st_low, SPEEX_GET_EXC, low_exc_rms); |
| 365 |
| 366 speex_encoder_ctl(st->st_low, SPEEX_GET_LOW_MODE, &dtx); |
| 367 |
| 368 if (dtx==0) |
| 369 dtx=1; |
| 370 else |
| 371 dtx=0; |
| 372 |
| 373 ALLOC(lpc, st->lpcSize, spx_coef_t); |
| 374 ALLOC(interp_lpc, st->lpcSize, spx_coef_t); |
| 375 ALLOC(bw_lpc1, st->lpcSize, spx_coef_t); |
| 376 ALLOC(bw_lpc2, st->lpcSize, spx_coef_t); |
| 377 |
| 378 ALLOC(lsp, st->lpcSize, spx_lsp_t); |
| 379 ALLOC(qlsp, st->lpcSize, spx_lsp_t); |
| 380 ALLOC(interp_lsp, st->lpcSize, spx_lsp_t); |
| 381 ALLOC(interp_qlsp, st->lpcSize, spx_lsp_t); |
| 382 |
| 383 { |
| 384 VARDECL(spx_word16_t *autocorr); |
| 385 VARDECL(spx_word16_t *w_sig); |
| 386 ALLOC(autocorr, st->lpcSize+1, spx_word16_t); |
| 387 ALLOC(w_sig, st->windowSize, spx_word16_t); |
| 388 /* Window for analysis */ |
| 389 /* FIXME: This is a kludge */ |
| 390 if (st->subframeSize==80) |
| 391 { |
| 392 for (i=0;i<st->windowSize;i++) |
| 393 w_sig[i] = EXTRACT16(SHR32(MULT16_16(high[i],st->window[i>>1]),SIG_S
HIFT)); |
| 394 } else { |
| 395 for (i=0;i<st->windowSize;i++) |
| 396 w_sig[i] = EXTRACT16(SHR32(MULT16_16(high[i],st->window[i]),SIG_SHIF
T)); |
| 397 } |
| 398 /* Compute auto-correlation */ |
| 399 _spx_autocorr(w_sig, autocorr, st->lpcSize+1, st->windowSize); |
| 400 autocorr[0] = ADD16(autocorr[0],MULT16_16_Q15(autocorr[0],st->lpc_floor));
/* Noise floor in auto-correlation domain */ |
| 401 |
| 402 /* Lag windowing: equivalent to filtering in the power-spectrum domain */ |
| 403 for (i=0;i<st->lpcSize+1;i++) |
| 404 autocorr[i] = MULT16_16_Q14(autocorr[i],st->lagWindow[i]); |
| 405 |
| 406 /* Levinson-Durbin */ |
| 407 _spx_lpc(lpc, autocorr, st->lpcSize); |
| 408 } |
| 409 |
| 410 /* LPC to LSPs (x-domain) transform */ |
| 411 roots=lpc_to_lsp (lpc, st->lpcSize, lsp, 10, LSP_DELTA1, stack); |
| 412 if (roots!=st->lpcSize) |
| 413 { |
| 414 roots = lpc_to_lsp (lpc, st->lpcSize, lsp, 10, LSP_DELTA2, stack); |
| 415 if (roots!=st->lpcSize) { |
| 416 /*If we can't find all LSP's, do some damage control and use a flat fil
ter*/ |
| 417 for (i=0;i<st->lpcSize;i++) |
| 418 { |
| 419 lsp[i]=st->old_lsp[i]; |
| 420 } |
| 421 } |
| 422 } |
| 423 |
| 424 #ifndef DISABLE_VBR |
| 425 /* VBR code */ |
| 426 if ((st->vbr_enabled || st->vad_enabled) && !dtx) |
| 427 { |
| 428 float ratio; |
| 429 if (st->abr_enabled) |
| 430 { |
| 431 float qual_change=0; |
| 432 if (st->abr_drift2 * st->abr_drift > 0) |
| 433 { |
| 434 /* Only adapt if long-term and short-term drift are the same sign */ |
| 435 qual_change = -.00001*st->abr_drift/(1+st->abr_count); |
| 436 if (qual_change>.1) |
| 437 qual_change=.1; |
| 438 if (qual_change<-.1) |
| 439 qual_change=-.1; |
| 440 } |
| 441 st->vbr_quality += qual_change; |
| 442 if (st->vbr_quality>10) |
| 443 st->vbr_quality=10; |
| 444 if (st->vbr_quality<0) |
| 445 st->vbr_quality=0; |
| 446 } |
| 447 |
| 448 |
| 449 ratio = 2*log((1.f+e_high)/(1.f+e_low)); |
| 450 |
| 451 speex_encoder_ctl(st->st_low, SPEEX_GET_RELATIVE_QUALITY, &st->relative_qu
ality); |
| 452 if (ratio<-4) |
| 453 ratio=-4; |
| 454 if (ratio>2) |
| 455 ratio=2; |
| 456 /*if (ratio>-2)*/ |
| 457 if (st->vbr_enabled) |
| 458 { |
| 459 spx_int32_t modeid; |
| 460 modeid = mode->nb_modes-1; |
| 461 st->relative_quality+=1.0*(ratio+2); |
| 462 if (st->relative_quality<-1) |
| 463 st->relative_quality=-1; |
| 464 while (modeid) |
| 465 { |
| 466 int v1; |
| 467 float thresh; |
| 468 v1=(int)floor(st->vbr_quality); |
| 469 if (v1==10) |
| 470 thresh = mode->vbr_thresh[modeid][v1]; |
| 471 else |
| 472 thresh = (st->vbr_quality-v1) * mode->vbr_thresh[modeid][v1+1]
+ |
| 473 (1+v1-st->vbr_quality) * mode->vbr_thresh[modeid][v1]; |
| 474 if (st->relative_quality >= thresh && st->sampling_rate*st->submodes
[modeid]->bits_per_frame/st->full_frame_size <= st->vbr_max_high) |
| 475 break; |
| 476 modeid--; |
| 477 } |
| 478 speex_encoder_ctl(state, SPEEX_SET_HIGH_MODE, &modeid); |
| 479 if (st->abr_enabled) |
| 480 { |
| 481 spx_int32_t bitrate; |
| 482 speex_encoder_ctl(state, SPEEX_GET_BITRATE, &bitrate); |
| 483 st->abr_drift+=(bitrate-st->abr_enabled); |
| 484 st->abr_drift2 = .95*st->abr_drift2 + .05*(bitrate-st->abr_enabled); |
| 485 st->abr_count += 1.0; |
| 486 } |
| 487 |
| 488 } else { |
| 489 /* VAD only */ |
| 490 int modeid; |
| 491 if (st->relative_quality<2.0) |
| 492 modeid=1; |
| 493 else |
| 494 modeid=st->submodeSelect; |
| 495 /*speex_encoder_ctl(state, SPEEX_SET_MODE, &mode);*/ |
| 496 st->submodeID=modeid; |
| 497 |
| 498 } |
| 499 /*fprintf (stderr, "%f %f\n", ratio, low_qual);*/ |
| 500 } |
| 501 #endif /* #ifndef DISABLE_VBR */ |
| 502 |
| 503 if (st->encode_submode) |
| 504 { |
| 505 speex_bits_pack(bits, 1, 1); |
| 506 if (dtx) |
| 507 speex_bits_pack(bits, 0, SB_SUBMODE_BITS); |
| 508 else |
| 509 speex_bits_pack(bits, st->submodeID, SB_SUBMODE_BITS); |
| 510 } |
| 511 |
| 512 /* If null mode (no transmission), just set a couple things to zero*/ |
| 513 if (dtx || st->submodes[st->submodeID] == NULL) |
| 514 { |
| 515 for (i=0;i<st->frame_size;i++) |
| 516 high[i]=VERY_SMALL; |
| 517 |
| 518 for (i=0;i<st->lpcSize;i++) |
| 519 st->mem_sw[i]=0; |
| 520 st->first=1; |
| 521 |
| 522 /* Final signal synthesis from excitation */ |
| 523 iir_mem16(high, st->interp_qlpc, high, st->frame_size, st->lpcSize, st->me
m_sp, stack); |
| 524 |
| 525 if (dtx) |
| 526 return 0; |
| 527 else |
| 528 return 1; |
| 529 } |
| 530 |
| 531 |
| 532 /* LSP quantization */ |
| 533 SUBMODE(lsp_quant)(lsp, qlsp, st->lpcSize, bits); |
| 534 |
| 535 if (st->first) |
| 536 { |
| 537 for (i=0;i<st->lpcSize;i++) |
| 538 st->old_lsp[i] = lsp[i]; |
| 539 for (i=0;i<st->lpcSize;i++) |
| 540 st->old_qlsp[i] = qlsp[i]; |
| 541 } |
| 542 |
| 543 ALLOC(mem, st->lpcSize, spx_mem_t); |
| 544 ALLOC(syn_resp, st->subframeSize, spx_word16_t); |
| 545 ALLOC(innov, st->subframeSize, spx_sig_t); |
| 546 ALLOC(target, st->subframeSize, spx_word16_t); |
| 547 |
| 548 for (sub=0;sub<st->nbSubframes;sub++) |
| 549 { |
| 550 VARDECL(spx_word16_t *exc); |
| 551 VARDECL(spx_word16_t *res); |
| 552 VARDECL(spx_word16_t *sw); |
| 553 spx_word16_t *sp; |
| 554 spx_word16_t filter_ratio; /*Q7*/ |
| 555 int offset; |
| 556 spx_word32_t rl, rh; /*Q13*/ |
| 557 spx_word16_t eh=0; |
| 558 |
| 559 offset = st->subframeSize*sub; |
| 560 sp=high+offset; |
| 561 ALLOC(exc, st->subframeSize, spx_word16_t); |
| 562 ALLOC(res, st->subframeSize, spx_word16_t); |
| 563 ALLOC(sw, st->subframeSize, spx_word16_t); |
| 564 |
| 565 /* LSP interpolation (quantized and unquantized) */ |
| 566 lsp_interpolate(st->old_lsp, lsp, interp_lsp, st->lpcSize, sub, st->nbSubf
rames); |
| 567 lsp_interpolate(st->old_qlsp, qlsp, interp_qlsp, st->lpcSize, sub, st->nbS
ubframes); |
| 568 |
| 569 lsp_enforce_margin(interp_lsp, st->lpcSize, LSP_MARGIN); |
| 570 lsp_enforce_margin(interp_qlsp, st->lpcSize, LSP_MARGIN); |
| 571 |
| 572 lsp_to_lpc(interp_lsp, interp_lpc, st->lpcSize,stack); |
| 573 lsp_to_lpc(interp_qlsp, st->interp_qlpc, st->lpcSize, stack); |
| 574 |
| 575 bw_lpc(st->gamma1, interp_lpc, bw_lpc1, st->lpcSize); |
| 576 bw_lpc(st->gamma2, interp_lpc, bw_lpc2, st->lpcSize); |
| 577 |
| 578 /* Compute mid-band (4000 Hz for wideband) response of low-band and high-b
and |
| 579 filters */ |
| 580 st->pi_gain[sub]=LPC_SCALING; |
| 581 rh = LPC_SCALING; |
| 582 for (i=0;i<st->lpcSize;i+=2) |
| 583 { |
| 584 rh += st->interp_qlpc[i+1] - st->interp_qlpc[i]; |
| 585 st->pi_gain[sub] += st->interp_qlpc[i] + st->interp_qlpc[i+1]; |
| 586 } |
| 587 |
| 588 rl = low_pi_gain[sub]; |
| 589 #ifdef FIXED_POINT |
| 590 filter_ratio=EXTRACT16(SATURATE(PDIV32(SHL32(ADD32(rl,82),7),ADD32(82,rh))
,32767)); |
| 591 #else |
| 592 filter_ratio=(rl+.01)/(rh+.01); |
| 593 #endif |
| 594 |
| 595 /* Compute "real excitation" */ |
| 596 fir_mem16(sp, st->interp_qlpc, exc, st->subframeSize, st->lpcSize, st->mem
_sp2, stack); |
| 597 /* Compute energy of low-band and high-band excitation */ |
| 598 |
| 599 eh = compute_rms16(exc, st->subframeSize); |
| 600 |
| 601 if (!SUBMODE(innovation_quant)) {/* 1 for spectral folding excitation, 0 f
or stochastic */ |
| 602 spx_word32_t g; /*Q7*/ |
| 603 spx_word16_t el; /*Q0*/ |
| 604 el = low_innov_rms[sub]; |
| 605 |
| 606 /* Gain to use if we want to use the low-band excitation for high-band
*/ |
| 607 g=PDIV32(MULT16_16(filter_ratio,eh),EXTEND32(ADD16(1,el))); |
| 608 |
| 609 #if 0 |
| 610 { |
| 611 char *tmp_stack=stack; |
| 612 float *tmp_sig; |
| 613 float g2; |
| 614 ALLOC(tmp_sig, st->subframeSize, spx_sig_t); |
| 615 for (i=0;i<st->lpcSize;i++) |
| 616 mem[i]=st->mem_sp[i]; |
| 617 iir_mem2(st->low_innov+offset, st->interp_qlpc, tmp_sig, st->subfram
eSize, st->lpcSize, mem); |
| 618 g2 = compute_rms(sp, st->subframeSize)/(.01+compute_rms(tmp_sig, st-
>subframeSize)); |
| 619 /*fprintf (stderr, "gains: %f %f\n", g, g2);*/ |
| 620 g = g2; |
| 621 stack = tmp_stack; |
| 622 } |
| 623 #endif |
| 624 |
| 625 /*print_vec(&g, 1, "gain factor");*/ |
| 626 /* Gain quantization */ |
| 627 { |
| 628 int quant = scal_quant(g, fold_quant_bound, 32); |
| 629 /*speex_warning_int("tata", quant);*/ |
| 630 if (quant<0) |
| 631 quant=0; |
| 632 if (quant>31) |
| 633 quant=31; |
| 634 speex_bits_pack(bits, quant, 5); |
| 635 } |
| 636 if (st->innov_rms_save) |
| 637 { |
| 638 st->innov_rms_save[sub] = eh; |
| 639 } |
| 640 st->exc_rms[sub] = eh; |
| 641 } else { |
| 642 spx_word16_t gc; /*Q7*/ |
| 643 spx_word32_t scale; /*Q14*/ |
| 644 spx_word16_t el; /*Q0*/ |
| 645 el = low_exc_rms[sub]; /*Q0*/ |
| 646 |
| 647 gc = PDIV32_16(MULT16_16(filter_ratio,1+eh),1+el); |
| 648 |
| 649 /* This is a kludge that cleans up a historical bug */ |
| 650 if (st->subframeSize==80) |
| 651 gc = MULT16_16_P15(QCONST16(0.70711f,15),gc); |
| 652 /*printf ("%f %f %f %f\n", el, eh, filter_ratio, gc);*/ |
| 653 { |
| 654 int qgc = scal_quant(gc, gc_quant_bound, 16); |
| 655 speex_bits_pack(bits, qgc, 4); |
| 656 gc = MULT16_16_Q15(QCONST16(0.87360,15),gc_quant_bound[qgc]); |
| 657 } |
| 658 if (st->subframeSize==80) |
| 659 gc = MULT16_16_P14(QCONST16(1.4142f,14), gc); |
| 660 |
| 661 scale = SHL32(MULT16_16(PDIV32_16(SHL32(EXTEND32(gc),SIG_SHIFT-6),filte
r_ratio),(1+el)),6); |
| 662 |
| 663 compute_impulse_response(st->interp_qlpc, bw_lpc1, bw_lpc2, syn_resp, s
t->subframeSize, st->lpcSize, stack); |
| 664 |
| 665 |
| 666 /* Reset excitation */ |
| 667 for (i=0;i<st->subframeSize;i++) |
| 668 res[i]=VERY_SMALL; |
| 669 |
| 670 /* Compute zero response (ringing) of A(z/g1) / ( A(z/g2) * Aq(z) ) */ |
| 671 for (i=0;i<st->lpcSize;i++) |
| 672 mem[i]=st->mem_sp[i]; |
| 673 iir_mem16(res, st->interp_qlpc, res, st->subframeSize, st->lpcSize, mem
, stack); |
| 674 |
| 675 for (i=0;i<st->lpcSize;i++) |
| 676 mem[i]=st->mem_sw[i]; |
| 677 filter_mem16(res, bw_lpc1, bw_lpc2, res, st->subframeSize, st->lpcSize,
mem, stack); |
| 678 |
| 679 /* Compute weighted signal */ |
| 680 for (i=0;i<st->lpcSize;i++) |
| 681 mem[i]=st->mem_sw[i]; |
| 682 filter_mem16(sp, bw_lpc1, bw_lpc2, sw, st->subframeSize, st->lpcSize, m
em, stack); |
| 683 |
| 684 /* Compute target signal */ |
| 685 for (i=0;i<st->subframeSize;i++) |
| 686 target[i]=SUB16(sw[i],res[i]); |
| 687 |
| 688 signal_div(target, target, scale, st->subframeSize); |
| 689 |
| 690 /* Reset excitation */ |
| 691 SPEEX_MEMSET(innov, 0, st->subframeSize); |
| 692 |
| 693 /*print_vec(target, st->subframeSize, "\ntarget");*/ |
| 694 SUBMODE(innovation_quant)(target, st->interp_qlpc, bw_lpc1, bw_lpc2, |
| 695 SUBMODE(innovation_params), st->lpcSize, st->
subframeSize, |
| 696 innov, syn_resp, bits, stack, st->complexity,
SUBMODE(double_codebook)); |
| 697 /*print_vec(target, st->subframeSize, "after");*/ |
| 698 |
| 699 signal_mul(innov, innov, scale, st->subframeSize); |
| 700 |
| 701 if (SUBMODE(double_codebook)) { |
| 702 char *tmp_stack=stack; |
| 703 VARDECL(spx_sig_t *innov2); |
| 704 ALLOC(innov2, st->subframeSize, spx_sig_t); |
| 705 SPEEX_MEMSET(innov2, 0, st->subframeSize); |
| 706 for (i=0;i<st->subframeSize;i++) |
| 707 target[i]=MULT16_16_P13(QCONST16(2.5f,13), target[i]); |
| 708 |
| 709 SUBMODE(innovation_quant)(target, st->interp_qlpc, bw_lpc1, bw_lpc2,
|
| 710 SUBMODE(innovation_params), st->lpcSize, s
t->subframeSize, |
| 711 innov2, syn_resp, bits, stack, st->complex
ity, 0); |
| 712 signal_mul(innov2, innov2, MULT16_32_P15(QCONST16(0.4f,15),scale), s
t->subframeSize); |
| 713 |
| 714 for (i=0;i<st->subframeSize;i++) |
| 715 innov[i] = ADD32(innov[i],innov2[i]); |
| 716 stack = tmp_stack; |
| 717 } |
| 718 for (i=0;i<st->subframeSize;i++) |
| 719 exc[i] = PSHR32(innov[i],SIG_SHIFT); |
| 720 |
| 721 if (st->innov_rms_save) |
| 722 { |
| 723 st->innov_rms_save[sub] = MULT16_16_Q15(QCONST16(.70711f, 15), compu
te_rms(innov, st->subframeSize)); |
| 724 } |
| 725 st->exc_rms[sub] = compute_rms16(exc, st->subframeSize); |
| 726 |
| 727 |
| 728 } |
| 729 |
| 730 |
| 731 /*Keep the previous memory*/ |
| 732 for (i=0;i<st->lpcSize;i++) |
| 733 mem[i]=st->mem_sp[i]; |
| 734 /* Final signal synthesis from excitation */ |
| 735 iir_mem16(exc, st->interp_qlpc, sp, st->subframeSize, st->lpcSize, st->mem
_sp, stack); |
| 736 |
| 737 /* Compute weighted signal again, from synthesized speech (not sure it's t
he right thing) */ |
| 738 filter_mem16(sp, bw_lpc1, bw_lpc2, sw, st->subframeSize, st->lpcSize, st->
mem_sw, stack); |
| 739 } |
| 740 |
| 741 for (i=0;i<st->lpcSize;i++) |
| 742 st->old_lsp[i] = lsp[i]; |
| 743 for (i=0;i<st->lpcSize;i++) |
| 744 st->old_qlsp[i] = qlsp[i]; |
| 745 |
| 746 st->first=0; |
| 747 |
| 748 return 1; |
| 749 } |
| 750 |
| 751 |
| 752 |
| 753 |
| 754 |
| 755 void *sb_decoder_init(const SpeexMode *m) |
| 756 { |
| 757 spx_int32_t tmp; |
| 758 SBDecState *st; |
| 759 const SpeexSBMode *mode; |
| 760 st = (SBDecState*)speex_alloc(sizeof(SBDecState)); |
| 761 if (!st) |
| 762 return NULL; |
| 763 st->mode = m; |
| 764 mode=(const SpeexSBMode*)m->mode; |
| 765 st->encode_submode = 1; |
| 766 |
| 767 st->st_low = speex_decoder_init(mode->nb_mode); |
| 768 #if defined(VAR_ARRAYS) || defined (USE_ALLOCA) |
| 769 st->stack = NULL; |
| 770 #else |
| 771 /*st->stack = (char*)speex_alloc_scratch(SB_DEC_STACK);*/ |
| 772 speex_decoder_ctl(st->st_low, SPEEX_GET_STACK, &st->stack); |
| 773 #endif |
| 774 |
| 775 st->full_frame_size = 2*mode->frameSize; |
| 776 st->frame_size = mode->frameSize; |
| 777 st->subframeSize = mode->subframeSize; |
| 778 st->nbSubframes = mode->frameSize/mode->subframeSize; |
| 779 st->lpcSize=mode->lpcSize; |
| 780 speex_decoder_ctl(st->st_low, SPEEX_GET_SAMPLING_RATE, &st->sampling_rate); |
| 781 st->sampling_rate*=2; |
| 782 tmp=1; |
| 783 speex_decoder_ctl(st->st_low, SPEEX_SET_WIDEBAND, &tmp); |
| 784 |
| 785 st->submodes=mode->submodes; |
| 786 st->submodeID=mode->defaultSubmode; |
| 787 |
| 788 st->first=1; |
| 789 |
| 790 st->g0_mem = (spx_word16_t*)speex_alloc((QMF_ORDER)*sizeof(spx_word16_t)); |
| 791 st->g1_mem = (spx_word16_t*)speex_alloc((QMF_ORDER)*sizeof(spx_word16_t)); |
| 792 |
| 793 st->excBuf = (spx_word16_t*)speex_alloc((st->subframeSize)*sizeof(spx_word16_
t)); |
| 794 |
| 795 st->old_qlsp = (spx_lsp_t*)speex_alloc((st->lpcSize)*sizeof(spx_lsp_t)); |
| 796 st->interp_qlpc = (spx_coef_t*)speex_alloc(st->lpcSize*sizeof(spx_coef_t)); |
| 797 |
| 798 st->pi_gain = (spx_word32_t*)speex_alloc((st->nbSubframes)*sizeof(spx_word32_
t)); |
| 799 st->exc_rms = (spx_word16_t*)speex_alloc((st->nbSubframes)*sizeof(spx_word16_
t)); |
| 800 st->mem_sp = (spx_mem_t*)speex_alloc((2*st->lpcSize)*sizeof(spx_mem_t)); |
| 801 |
| 802 st->innov_save = NULL; |
| 803 |
| 804 |
| 805 st->lpc_enh_enabled=0; |
| 806 st->seed = 1000; |
| 807 |
| 808 #ifdef ENABLE_VALGRIND |
| 809 VALGRIND_MAKE_READABLE(st, (st->stack-(char*)st)); |
| 810 #endif |
| 811 return st; |
| 812 } |
| 813 |
| 814 void sb_decoder_destroy(void *state) |
| 815 { |
| 816 SBDecState *st; |
| 817 st = (SBDecState*)state; |
| 818 speex_decoder_destroy(st->st_low); |
| 819 #if !(defined(VAR_ARRAYS) || defined (USE_ALLOCA)) |
| 820 /*speex_free_scratch(st->stack);*/ |
| 821 #endif |
| 822 |
| 823 speex_free(st->g0_mem); |
| 824 speex_free(st->g1_mem); |
| 825 speex_free(st->excBuf); |
| 826 speex_free(st->old_qlsp); |
| 827 speex_free(st->interp_qlpc); |
| 828 speex_free(st->pi_gain); |
| 829 speex_free(st->exc_rms); |
| 830 speex_free(st->mem_sp); |
| 831 |
| 832 speex_free(state); |
| 833 } |
| 834 |
| 835 static void sb_decode_lost(SBDecState *st, spx_word16_t *out, int dtx, char *sta
ck) |
| 836 { |
| 837 int i; |
| 838 int saved_modeid=0; |
| 839 |
| 840 if (dtx) |
| 841 { |
| 842 saved_modeid=st->submodeID; |
| 843 st->submodeID=1; |
| 844 } else { |
| 845 bw_lpc(QCONST16(0.99f,15), st->interp_qlpc, st->interp_qlpc, st->lpcSize); |
| 846 } |
| 847 |
| 848 st->first=1; |
| 849 |
| 850 |
| 851 /* Final signal synthesis from excitation */ |
| 852 if (!dtx) |
| 853 { |
| 854 st->last_ener = MULT16_16_Q15(QCONST16(.9f,15),st->last_ener); |
| 855 } |
| 856 for (i=0;i<st->frame_size;i++) |
| 857 out[i+st->frame_size] = speex_rand(st->last_ener, &st->seed); |
| 858 |
| 859 iir_mem16(out+st->frame_size, st->interp_qlpc, out+st->frame_size, st->frame_
size, st->lpcSize, |
| 860 st->mem_sp, stack); |
| 861 |
| 862 |
| 863 /* Reconstruct the original */ |
| 864 qmf_synth(out, out+st->frame_size, h0, out, st->full_frame_size, QMF_ORDER, s
t->g0_mem, st->g1_mem, stack); |
| 865 if (dtx) |
| 866 { |
| 867 st->submodeID=saved_modeid; |
| 868 } |
| 869 |
| 870 return; |
| 871 } |
| 872 |
| 873 int sb_decode(void *state, SpeexBits *bits, void *vout) |
| 874 { |
| 875 int i, sub; |
| 876 SBDecState *st; |
| 877 int wideband; |
| 878 int ret; |
| 879 char *stack; |
| 880 VARDECL(spx_word32_t *low_pi_gain); |
| 881 VARDECL(spx_word16_t *low_exc_rms); |
| 882 VARDECL(spx_coef_t *ak); |
| 883 VARDECL(spx_lsp_t *qlsp); |
| 884 VARDECL(spx_lsp_t *interp_qlsp); |
| 885 spx_int32_t dtx; |
| 886 const SpeexSBMode *mode; |
| 887 spx_word16_t *out = (spx_word16_t*)vout; |
| 888 spx_word16_t *low_innov_alias; |
| 889 spx_word32_t exc_ener_sum = 0; |
| 890 |
| 891 st = (SBDecState*)state; |
| 892 stack=st->stack; |
| 893 mode = (const SpeexSBMode*)(st->mode->mode); |
| 894 |
| 895 low_innov_alias = out+st->frame_size; |
| 896 speex_decoder_ctl(st->st_low, SPEEX_SET_INNOVATION_SAVE, low_innov_alias); |
| 897 /* Decode the low-band */ |
| 898 ret = speex_decode_native(st->st_low, bits, out); |
| 899 |
| 900 speex_decoder_ctl(st->st_low, SPEEX_GET_DTX_STATUS, &dtx); |
| 901 |
| 902 /* If error decoding the narrowband part, propagate error */ |
| 903 if (ret!=0) |
| 904 { |
| 905 return ret; |
| 906 } |
| 907 |
| 908 if (!bits) |
| 909 { |
| 910 sb_decode_lost(st, out, dtx, stack); |
| 911 return 0; |
| 912 } |
| 913 |
| 914 if (st->encode_submode) |
| 915 { |
| 916 |
| 917 /*Check "wideband bit"*/ |
| 918 if (speex_bits_remaining(bits)>0) |
| 919 wideband = speex_bits_peek(bits); |
| 920 else |
| 921 wideband = 0; |
| 922 if (wideband) |
| 923 { |
| 924 /*Regular wideband frame, read the submode*/ |
| 925 wideband = speex_bits_unpack_unsigned(bits, 1); |
| 926 st->submodeID = speex_bits_unpack_unsigned(bits, SB_SUBMODE_BITS); |
| 927 } else |
| 928 { |
| 929 /*Was a narrowband frame, set "null submode"*/ |
| 930 st->submodeID = 0; |
| 931 } |
| 932 if (st->submodeID != 0 && st->submodes[st->submodeID] == NULL) |
| 933 { |
| 934 speex_notify("Invalid mode encountered. The stream is corrupted."); |
| 935 return -2; |
| 936 } |
| 937 } |
| 938 |
| 939 /* If null mode (no transmission), just set a couple things to zero*/ |
| 940 if (st->submodes[st->submodeID] == NULL) |
| 941 { |
| 942 if (dtx) |
| 943 { |
| 944 sb_decode_lost(st, out, 1, stack); |
| 945 return 0; |
| 946 } |
| 947 |
| 948 for (i=0;i<st->frame_size;i++) |
| 949 out[st->frame_size+i]=VERY_SMALL; |
| 950 |
| 951 st->first=1; |
| 952 |
| 953 /* Final signal synthesis from excitation */ |
| 954 iir_mem16(out+st->frame_size, st->interp_qlpc, out+st->frame_size, st->fra
me_size, st->lpcSize, st->mem_sp, stack); |
| 955 |
| 956 qmf_synth(out, out+st->frame_size, h0, out, st->full_frame_size, QMF_ORDER
, st->g0_mem, st->g1_mem, stack); |
| 957 |
| 958 return 0; |
| 959 |
| 960 } |
| 961 |
| 962 ALLOC(low_pi_gain, st->nbSubframes, spx_word32_t); |
| 963 ALLOC(low_exc_rms, st->nbSubframes, spx_word16_t); |
| 964 speex_decoder_ctl(st->st_low, SPEEX_GET_PI_GAIN, low_pi_gain); |
| 965 speex_decoder_ctl(st->st_low, SPEEX_GET_EXC, low_exc_rms); |
| 966 |
| 967 ALLOC(qlsp, st->lpcSize, spx_lsp_t); |
| 968 ALLOC(interp_qlsp, st->lpcSize, spx_lsp_t); |
| 969 SUBMODE(lsp_unquant)(qlsp, st->lpcSize, bits); |
| 970 |
| 971 if (st->first) |
| 972 { |
| 973 for (i=0;i<st->lpcSize;i++) |
| 974 st->old_qlsp[i] = qlsp[i]; |
| 975 } |
| 976 |
| 977 ALLOC(ak, st->lpcSize, spx_coef_t); |
| 978 |
| 979 for (sub=0;sub<st->nbSubframes;sub++) |
| 980 { |
| 981 VARDECL(spx_word32_t *exc); |
| 982 spx_word16_t *innov_save=NULL; |
| 983 spx_word16_t *sp; |
| 984 spx_word16_t filter_ratio; |
| 985 spx_word16_t el=0; |
| 986 int offset; |
| 987 spx_word32_t rl=0,rh=0; |
| 988 |
| 989 offset = st->subframeSize*sub; |
| 990 sp=out+st->frame_size+offset; |
| 991 ALLOC(exc, st->subframeSize, spx_word32_t); |
| 992 /* Pointer for saving innovation */ |
| 993 if (st->innov_save) |
| 994 { |
| 995 innov_save = st->innov_save+2*offset; |
| 996 SPEEX_MEMSET(innov_save, 0, 2*st->subframeSize); |
| 997 } |
| 998 |
| 999 /* LSP interpolation */ |
| 1000 lsp_interpolate(st->old_qlsp, qlsp, interp_qlsp, st->lpcSize, sub, st->nbS
ubframes); |
| 1001 |
| 1002 lsp_enforce_margin(interp_qlsp, st->lpcSize, LSP_MARGIN); |
| 1003 |
| 1004 /* LSP to LPC */ |
| 1005 lsp_to_lpc(interp_qlsp, ak, st->lpcSize, stack); |
| 1006 |
| 1007 /* Calculate reponse ratio between the low and high filter in the middle |
| 1008 of the band (4000 Hz) */ |
| 1009 |
| 1010 st->pi_gain[sub]=LPC_SCALING; |
| 1011 rh = LPC_SCALING; |
| 1012 for (i=0;i<st->lpcSize;i+=2) |
| 1013 { |
| 1014 rh += ak[i+1] - ak[i]; |
| 1015 st->pi_gain[sub] += ak[i] + ak[i+1]; |
| 1016 } |
| 1017 |
| 1018 rl = low_pi_gain[sub]; |
| 1019 #ifdef FIXED_POINT |
| 1020 filter_ratio=EXTRACT16(SATURATE(PDIV32(SHL32(ADD32(rl,82),7),ADD32(82,r
h)),32767)); |
| 1021 #else |
| 1022 filter_ratio=(rl+.01)/(rh+.01); |
| 1023 #endif |
| 1024 |
| 1025 SPEEX_MEMSET(exc, 0, st->subframeSize); |
| 1026 if (!SUBMODE(innovation_unquant)) |
| 1027 { |
| 1028 spx_word32_t g; |
| 1029 int quant; |
| 1030 |
| 1031 quant = speex_bits_unpack_unsigned(bits, 5); |
| 1032 g= spx_exp(MULT16_16(QCONST16(.125f,11),(quant-10))); |
| 1033 |
| 1034 g = PDIV32(g, filter_ratio); |
| 1035 |
| 1036 for (i=0;i<st->subframeSize;i+=2) |
| 1037 { |
| 1038 exc[i]=SHL32(MULT16_32_P15(MULT16_16_Q15(mode->folding_gain,low_inno
v_alias[offset+i]),SHL32(g,6)),SIG_SHIFT); |
| 1039 exc[i+1]=NEG32(SHL32(MULT16_32_P15(MULT16_16_Q15(mode->folding_gain,
low_innov_alias[offset+i+1]),SHL32(g,6)),SIG_SHIFT)); |
| 1040 } |
| 1041 |
| 1042 } else { |
| 1043 spx_word16_t gc; |
| 1044 spx_word32_t scale; |
| 1045 int qgc = speex_bits_unpack_unsigned(bits, 4); |
| 1046 |
| 1047 el = low_exc_rms[sub]; |
| 1048 gc = MULT16_16_Q15(QCONST16(0.87360,15),gc_quant_bound[qgc]); |
| 1049 |
| 1050 if (st->subframeSize==80) |
| 1051 gc = MULT16_16_P14(QCONST16(1.4142f,14),gc); |
| 1052 |
| 1053 scale = SHL32(PDIV32(SHL32(MULT16_16(gc, el),3), filter_ratio),SIG_SHIF
T-3); |
| 1054 SUBMODE(innovation_unquant)(exc, SUBMODE(innovation_params), st->subfra
meSize, |
| 1055 bits, stack, &st->seed); |
| 1056 |
| 1057 signal_mul(exc,exc,scale,st->subframeSize); |
| 1058 |
| 1059 if (SUBMODE(double_codebook)) { |
| 1060 char *tmp_stack=stack; |
| 1061 VARDECL(spx_sig_t *innov2); |
| 1062 ALLOC(innov2, st->subframeSize, spx_sig_t); |
| 1063 SPEEX_MEMSET(innov2, 0, st->subframeSize); |
| 1064 SUBMODE(innovation_unquant)(innov2, SUBMODE(innovation_params), st->
subframeSize, |
| 1065 bits, stack, &st->seed); |
| 1066 signal_mul(innov2, innov2, MULT16_32_P15(QCONST16(0.4f,15),scale), s
t->subframeSize); |
| 1067 for (i=0;i<st->subframeSize;i++) |
| 1068 exc[i] = ADD32(exc[i],innov2[i]); |
| 1069 stack = tmp_stack; |
| 1070 } |
| 1071 |
| 1072 } |
| 1073 |
| 1074 if (st->innov_save) |
| 1075 { |
| 1076 for (i=0;i<st->subframeSize;i++) |
| 1077 innov_save[2*i]=EXTRACT16(PSHR32(exc[i],SIG_SHIFT)); |
| 1078 } |
| 1079 |
| 1080 iir_mem16(st->excBuf, st->interp_qlpc, sp, st->subframeSize, st->lpcSize, |
| 1081 st->mem_sp, stack); |
| 1082 for (i=0;i<st->subframeSize;i++) |
| 1083 st->excBuf[i]=EXTRACT16(PSHR32(exc[i],SIG_SHIFT)); |
| 1084 for (i=0;i<st->lpcSize;i++) |
| 1085 st->interp_qlpc[i] = ak[i]; |
| 1086 st->exc_rms[sub] = compute_rms16(st->excBuf, st->subframeSize); |
| 1087 exc_ener_sum = ADD32(exc_ener_sum, DIV32(MULT16_16(st->exc_rms[sub],st->ex
c_rms[sub]), st->nbSubframes)); |
| 1088 } |
| 1089 st->last_ener = spx_sqrt(exc_ener_sum); |
| 1090 |
| 1091 qmf_synth(out, out+st->frame_size, h0, out, st->full_frame_size, QMF_ORDER, s
t->g0_mem, st->g1_mem, stack); |
| 1092 for (i=0;i<st->lpcSize;i++) |
| 1093 st->old_qlsp[i] = qlsp[i]; |
| 1094 |
| 1095 st->first=0; |
| 1096 |
| 1097 return 0; |
| 1098 } |
| 1099 |
| 1100 |
| 1101 int sb_encoder_ctl(void *state, int request, void *ptr) |
| 1102 { |
| 1103 SBEncState *st; |
| 1104 st=(SBEncState*)state; |
| 1105 switch(request) |
| 1106 { |
| 1107 case SPEEX_GET_FRAME_SIZE: |
| 1108 (*(spx_int32_t*)ptr) = st->full_frame_size; |
| 1109 break; |
| 1110 case SPEEX_SET_HIGH_MODE: |
| 1111 st->submodeSelect = st->submodeID = (*(spx_int32_t*)ptr); |
| 1112 break; |
| 1113 case SPEEX_SET_LOW_MODE: |
| 1114 speex_encoder_ctl(st->st_low, SPEEX_SET_LOW_MODE, ptr); |
| 1115 break; |
| 1116 case SPEEX_SET_DTX: |
| 1117 speex_encoder_ctl(st->st_low, SPEEX_SET_DTX, ptr); |
| 1118 break; |
| 1119 case SPEEX_GET_DTX: |
| 1120 speex_encoder_ctl(st->st_low, SPEEX_GET_DTX, ptr); |
| 1121 break; |
| 1122 case SPEEX_GET_LOW_MODE: |
| 1123 speex_encoder_ctl(st->st_low, SPEEX_GET_LOW_MODE, ptr); |
| 1124 break; |
| 1125 case SPEEX_SET_MODE: |
| 1126 speex_encoder_ctl(st, SPEEX_SET_QUALITY, ptr); |
| 1127 break; |
| 1128 #ifndef DISABLE_VBR |
| 1129 case SPEEX_SET_VBR: |
| 1130 st->vbr_enabled = (*(spx_int32_t*)ptr); |
| 1131 speex_encoder_ctl(st->st_low, SPEEX_SET_VBR, ptr); |
| 1132 break; |
| 1133 case SPEEX_GET_VBR: |
| 1134 (*(spx_int32_t*)ptr) = st->vbr_enabled; |
| 1135 break; |
| 1136 case SPEEX_SET_VAD: |
| 1137 st->vad_enabled = (*(spx_int32_t*)ptr); |
| 1138 speex_encoder_ctl(st->st_low, SPEEX_SET_VAD, ptr); |
| 1139 break; |
| 1140 case SPEEX_GET_VAD: |
| 1141 (*(spx_int32_t*)ptr) = st->vad_enabled; |
| 1142 break; |
| 1143 #endif /* #ifndef DISABLE_VBR */ |
| 1144 #if !defined(DISABLE_VBR) && !defined(DISABLE_FLOAT_API) |
| 1145 case SPEEX_SET_VBR_QUALITY: |
| 1146 { |
| 1147 spx_int32_t q; |
| 1148 float qual = (*(float*)ptr)+.6; |
| 1149 st->vbr_quality = (*(float*)ptr); |
| 1150 if (qual>10) |
| 1151 qual=10; |
| 1152 q=(int)floor(.5+*(float*)ptr); |
| 1153 if (q>10) |
| 1154 q=10; |
| 1155 speex_encoder_ctl(st->st_low, SPEEX_SET_VBR_QUALITY, &qual); |
| 1156 speex_encoder_ctl(state, SPEEX_SET_QUALITY, &q); |
| 1157 break; |
| 1158 } |
| 1159 case SPEEX_GET_VBR_QUALITY: |
| 1160 (*(float*)ptr) = st->vbr_quality; |
| 1161 break; |
| 1162 #endif /* #if !defined(DISABLE_VBR) && !defined(DISABLE_FLOAT_API) */ |
| 1163 #ifndef DISABLE_VBR |
| 1164 case SPEEX_SET_ABR: |
| 1165 st->abr_enabled = (*(spx_int32_t*)ptr); |
| 1166 st->vbr_enabled = st->abr_enabled!=0; |
| 1167 speex_encoder_ctl(st->st_low, SPEEX_SET_VBR, &st->vbr_enabled); |
| 1168 if (st->vbr_enabled) |
| 1169 { |
| 1170 spx_int32_t i=10, rate, target; |
| 1171 float vbr_qual; |
| 1172 target = (*(spx_int32_t*)ptr); |
| 1173 while (i>=0) |
| 1174 { |
| 1175 speex_encoder_ctl(st, SPEEX_SET_QUALITY, &i); |
| 1176 speex_encoder_ctl(st, SPEEX_GET_BITRATE, &rate); |
| 1177 if (rate <= target) |
| 1178 break; |
| 1179 i--; |
| 1180 } |
| 1181 vbr_qual=i; |
| 1182 if (vbr_qual<0) |
| 1183 vbr_qual=0; |
| 1184 speex_encoder_ctl(st, SPEEX_SET_VBR_QUALITY, &vbr_qual); |
| 1185 st->abr_count=0; |
| 1186 st->abr_drift=0; |
| 1187 st->abr_drift2=0; |
| 1188 } |
| 1189 |
| 1190 break; |
| 1191 case SPEEX_GET_ABR: |
| 1192 (*(spx_int32_t*)ptr) = st->abr_enabled; |
| 1193 break; |
| 1194 #endif /* #ifndef DISABLE_VBR */ |
| 1195 |
| 1196 case SPEEX_SET_QUALITY: |
| 1197 { |
| 1198 spx_int32_t nb_qual; |
| 1199 int quality = (*(spx_int32_t*)ptr); |
| 1200 if (quality < 0) |
| 1201 quality = 0; |
| 1202 if (quality > 10) |
| 1203 quality = 10; |
| 1204 st->submodeSelect = st->submodeID = ((const SpeexSBMode*)(st->mode->mod
e))->quality_map[quality]; |
| 1205 nb_qual = ((const SpeexSBMode*)(st->mode->mode))->low_quality_map[quali
ty]; |
| 1206 speex_encoder_ctl(st->st_low, SPEEX_SET_MODE, &nb_qual); |
| 1207 } |
| 1208 break; |
| 1209 case SPEEX_SET_COMPLEXITY: |
| 1210 speex_encoder_ctl(st->st_low, SPEEX_SET_COMPLEXITY, ptr); |
| 1211 st->complexity = (*(spx_int32_t*)ptr); |
| 1212 if (st->complexity<1) |
| 1213 st->complexity=1; |
| 1214 break; |
| 1215 case SPEEX_GET_COMPLEXITY: |
| 1216 (*(spx_int32_t*)ptr) = st->complexity; |
| 1217 break; |
| 1218 case SPEEX_SET_BITRATE: |
| 1219 { |
| 1220 spx_int32_t i=10; |
| 1221 spx_int32_t rate, target; |
| 1222 target = (*(spx_int32_t*)ptr); |
| 1223 while (i>=0) |
| 1224 { |
| 1225 speex_encoder_ctl(st, SPEEX_SET_QUALITY, &i); |
| 1226 speex_encoder_ctl(st, SPEEX_GET_BITRATE, &rate); |
| 1227 if (rate <= target) |
| 1228 break; |
| 1229 i--; |
| 1230 } |
| 1231 } |
| 1232 break; |
| 1233 case SPEEX_GET_BITRATE: |
| 1234 speex_encoder_ctl(st->st_low, request, ptr); |
| 1235 /*fprintf (stderr, "before: %d\n", (*(int*)ptr));*/ |
| 1236 if (st->submodes[st->submodeID]) |
| 1237 (*(spx_int32_t*)ptr) += st->sampling_rate*SUBMODE(bits_per_frame)/st->f
ull_frame_size; |
| 1238 else |
| 1239 (*(spx_int32_t*)ptr) += st->sampling_rate*(SB_SUBMODE_BITS+1)/st->full_
frame_size; |
| 1240 /*fprintf (stderr, "after: %d\n", (*(int*)ptr));*/ |
| 1241 break; |
| 1242 case SPEEX_SET_SAMPLING_RATE: |
| 1243 { |
| 1244 spx_int32_t tmp=(*(spx_int32_t*)ptr); |
| 1245 st->sampling_rate = tmp; |
| 1246 tmp>>=1; |
| 1247 speex_encoder_ctl(st->st_low, SPEEX_SET_SAMPLING_RATE, &tmp); |
| 1248 } |
| 1249 break; |
| 1250 case SPEEX_GET_SAMPLING_RATE: |
| 1251 (*(spx_int32_t*)ptr)=st->sampling_rate; |
| 1252 break; |
| 1253 case SPEEX_RESET_STATE: |
| 1254 { |
| 1255 int i; |
| 1256 st->first = 1; |
| 1257 for (i=0;i<st->lpcSize;i++) |
| 1258 st->old_lsp[i]= DIV32(MULT16_16(QCONST16(3.1415927f, LSP_SHIFT), i+1
), st->lpcSize+1); |
| 1259 for (i=0;i<st->lpcSize;i++) |
| 1260 st->mem_sw[i]=st->mem_sp[i]=st->mem_sp2[i]=0; |
| 1261 for (i=0;i<QMF_ORDER;i++) |
| 1262 st->h0_mem[i]=st->h1_mem[i]=0; |
| 1263 } |
| 1264 break; |
| 1265 case SPEEX_SET_SUBMODE_ENCODING: |
| 1266 st->encode_submode = (*(spx_int32_t*)ptr); |
| 1267 speex_encoder_ctl(st->st_low, SPEEX_SET_SUBMODE_ENCODING, ptr); |
| 1268 break; |
| 1269 case SPEEX_GET_SUBMODE_ENCODING: |
| 1270 (*(spx_int32_t*)ptr) = st->encode_submode; |
| 1271 break; |
| 1272 case SPEEX_GET_LOOKAHEAD: |
| 1273 speex_encoder_ctl(st->st_low, SPEEX_GET_LOOKAHEAD, ptr); |
| 1274 (*(spx_int32_t*)ptr) = 2*(*(spx_int32_t*)ptr) + QMF_ORDER - 1; |
| 1275 break; |
| 1276 case SPEEX_SET_PLC_TUNING: |
| 1277 speex_encoder_ctl(st->st_low, SPEEX_SET_PLC_TUNING, ptr); |
| 1278 break; |
| 1279 case SPEEX_GET_PLC_TUNING: |
| 1280 speex_encoder_ctl(st->st_low, SPEEX_GET_PLC_TUNING, ptr); |
| 1281 break; |
| 1282 #ifndef DISABLE_VBR |
| 1283 case SPEEX_SET_VBR_MAX_BITRATE: |
| 1284 { |
| 1285 st->vbr_max = (*(spx_int32_t*)ptr); |
| 1286 if (SPEEX_SET_VBR_MAX_BITRATE<1) |
| 1287 { |
| 1288 speex_encoder_ctl(st->st_low, SPEEX_SET_VBR_MAX_BITRATE, &st->vbr_ma
x); |
| 1289 st->vbr_max_high = 17600; |
| 1290 } else { |
| 1291 spx_int32_t low_rate; |
| 1292 if (st->vbr_max >= 42200) |
| 1293 { |
| 1294 st->vbr_max_high = 17600; |
| 1295 } else if (st->vbr_max >= 27800) |
| 1296 { |
| 1297 st->vbr_max_high = 9600; |
| 1298 } else if (st->vbr_max > 20600) |
| 1299 { |
| 1300 st->vbr_max_high = 5600; |
| 1301 } else { |
| 1302 st->vbr_max_high = 1800; |
| 1303 } |
| 1304 if (st->subframeSize==80) |
| 1305 st->vbr_max_high = 1800; |
| 1306 low_rate = st->vbr_max - st->vbr_max_high; |
| 1307 speex_encoder_ctl(st->st_low, SPEEX_SET_VBR_MAX_BITRATE, &low_rate); |
| 1308 } |
| 1309 } |
| 1310 break; |
| 1311 case SPEEX_GET_VBR_MAX_BITRATE: |
| 1312 (*(spx_int32_t*)ptr) = st->vbr_max; |
| 1313 break; |
| 1314 #endif /* #ifndef DISABLE_VBR */ |
| 1315 case SPEEX_SET_HIGHPASS: |
| 1316 speex_encoder_ctl(st->st_low, SPEEX_SET_HIGHPASS, ptr); |
| 1317 break; |
| 1318 case SPEEX_GET_HIGHPASS: |
| 1319 speex_encoder_ctl(st->st_low, SPEEX_GET_HIGHPASS, ptr); |
| 1320 break; |
| 1321 |
| 1322 |
| 1323 /* This is all internal stuff past this point */ |
| 1324 case SPEEX_GET_PI_GAIN: |
| 1325 { |
| 1326 int i; |
| 1327 spx_word32_t *g = (spx_word32_t*)ptr; |
| 1328 for (i=0;i<st->nbSubframes;i++) |
| 1329 g[i]=st->pi_gain[i]; |
| 1330 } |
| 1331 break; |
| 1332 case SPEEX_GET_EXC: |
| 1333 { |
| 1334 int i; |
| 1335 for (i=0;i<st->nbSubframes;i++) |
| 1336 ((spx_word16_t*)ptr)[i] = st->exc_rms[i]; |
| 1337 } |
| 1338 break; |
| 1339 #ifndef DISABLE_VBR |
| 1340 case SPEEX_GET_RELATIVE_QUALITY: |
| 1341 (*(float*)ptr)=st->relative_quality; |
| 1342 break; |
| 1343 #endif /* #ifndef DISABLE_VBR */ |
| 1344 case SPEEX_SET_INNOVATION_SAVE: |
| 1345 st->innov_rms_save = (spx_word16_t*)ptr; |
| 1346 break; |
| 1347 case SPEEX_SET_WIDEBAND: |
| 1348 speex_encoder_ctl(st->st_low, SPEEX_SET_WIDEBAND, ptr); |
| 1349 break; |
| 1350 case SPEEX_GET_STACK: |
| 1351 *((char**)ptr) = st->stack; |
| 1352 break; |
| 1353 default: |
| 1354 speex_warning_int("Unknown nb_ctl request: ", request); |
| 1355 return -1; |
| 1356 } |
| 1357 return 0; |
| 1358 } |
| 1359 |
| 1360 int sb_decoder_ctl(void *state, int request, void *ptr) |
| 1361 { |
| 1362 SBDecState *st; |
| 1363 st=(SBDecState*)state; |
| 1364 switch(request) |
| 1365 { |
| 1366 case SPEEX_SET_HIGH_MODE: |
| 1367 st->submodeID = (*(spx_int32_t*)ptr); |
| 1368 break; |
| 1369 case SPEEX_SET_LOW_MODE: |
| 1370 speex_decoder_ctl(st->st_low, SPEEX_SET_LOW_MODE, ptr); |
| 1371 break; |
| 1372 case SPEEX_GET_LOW_MODE: |
| 1373 speex_decoder_ctl(st->st_low, SPEEX_GET_LOW_MODE, ptr); |
| 1374 break; |
| 1375 case SPEEX_GET_FRAME_SIZE: |
| 1376 (*(spx_int32_t*)ptr) = st->full_frame_size; |
| 1377 break; |
| 1378 case SPEEX_SET_ENH: |
| 1379 speex_decoder_ctl(st->st_low, request, ptr); |
| 1380 st->lpc_enh_enabled = *((spx_int32_t*)ptr); |
| 1381 break; |
| 1382 case SPEEX_GET_ENH: |
| 1383 *((spx_int32_t*)ptr) = st->lpc_enh_enabled; |
| 1384 break; |
| 1385 case SPEEX_SET_MODE: |
| 1386 case SPEEX_SET_QUALITY: |
| 1387 { |
| 1388 spx_int32_t nb_qual; |
| 1389 int quality = (*(spx_int32_t*)ptr); |
| 1390 if (quality < 0) |
| 1391 quality = 0; |
| 1392 if (quality > 10) |
| 1393 quality = 10; |
| 1394 st->submodeID = ((const SpeexSBMode*)(st->mode->mode))->quality_map[qua
lity]; |
| 1395 nb_qual = ((const SpeexSBMode*)(st->mode->mode))->low_quality_map[quali
ty]; |
| 1396 speex_decoder_ctl(st->st_low, SPEEX_SET_MODE, &nb_qual); |
| 1397 } |
| 1398 break; |
| 1399 case SPEEX_GET_BITRATE: |
| 1400 speex_decoder_ctl(st->st_low, request, ptr); |
| 1401 if (st->submodes[st->submodeID]) |
| 1402 (*(spx_int32_t*)ptr) += st->sampling_rate*SUBMODE(bits_per_frame)/st->f
ull_frame_size; |
| 1403 else |
| 1404 (*(spx_int32_t*)ptr) += st->sampling_rate*(SB_SUBMODE_BITS+1)/st->full_
frame_size; |
| 1405 break; |
| 1406 case SPEEX_SET_SAMPLING_RATE: |
| 1407 { |
| 1408 spx_int32_t tmp=(*(spx_int32_t*)ptr); |
| 1409 st->sampling_rate = tmp; |
| 1410 tmp>>=1; |
| 1411 speex_decoder_ctl(st->st_low, SPEEX_SET_SAMPLING_RATE, &tmp); |
| 1412 } |
| 1413 break; |
| 1414 case SPEEX_GET_SAMPLING_RATE: |
| 1415 (*(spx_int32_t*)ptr)=st->sampling_rate; |
| 1416 break; |
| 1417 case SPEEX_SET_HANDLER: |
| 1418 speex_decoder_ctl(st->st_low, SPEEX_SET_HANDLER, ptr); |
| 1419 break; |
| 1420 case SPEEX_SET_USER_HANDLER: |
| 1421 speex_decoder_ctl(st->st_low, SPEEX_SET_USER_HANDLER, ptr); |
| 1422 break; |
| 1423 case SPEEX_RESET_STATE: |
| 1424 { |
| 1425 int i; |
| 1426 for (i=0;i<2*st->lpcSize;i++) |
| 1427 st->mem_sp[i]=0; |
| 1428 for (i=0;i<QMF_ORDER;i++) |
| 1429 st->g0_mem[i]=st->g1_mem[i]=0; |
| 1430 st->last_ener=0; |
| 1431 } |
| 1432 break; |
| 1433 case SPEEX_SET_SUBMODE_ENCODING: |
| 1434 st->encode_submode = (*(spx_int32_t*)ptr); |
| 1435 speex_decoder_ctl(st->st_low, SPEEX_SET_SUBMODE_ENCODING, ptr); |
| 1436 break; |
| 1437 case SPEEX_GET_SUBMODE_ENCODING: |
| 1438 (*(spx_int32_t*)ptr) = st->encode_submode; |
| 1439 break; |
| 1440 case SPEEX_GET_LOOKAHEAD: |
| 1441 speex_decoder_ctl(st->st_low, SPEEX_GET_LOOKAHEAD, ptr); |
| 1442 (*(spx_int32_t*)ptr) = 2*(*(spx_int32_t*)ptr); |
| 1443 break; |
| 1444 case SPEEX_SET_HIGHPASS: |
| 1445 speex_decoder_ctl(st->st_low, SPEEX_SET_HIGHPASS, ptr); |
| 1446 break; |
| 1447 case SPEEX_GET_HIGHPASS: |
| 1448 speex_decoder_ctl(st->st_low, SPEEX_GET_HIGHPASS, ptr); |
| 1449 break; |
| 1450 case SPEEX_GET_ACTIVITY: |
| 1451 speex_decoder_ctl(st->st_low, SPEEX_GET_ACTIVITY, ptr); |
| 1452 break; |
| 1453 case SPEEX_GET_PI_GAIN: |
| 1454 { |
| 1455 int i; |
| 1456 spx_word32_t *g = (spx_word32_t*)ptr; |
| 1457 for (i=0;i<st->nbSubframes;i++) |
| 1458 g[i]=st->pi_gain[i]; |
| 1459 } |
| 1460 break; |
| 1461 case SPEEX_GET_EXC: |
| 1462 { |
| 1463 int i; |
| 1464 for (i=0;i<st->nbSubframes;i++) |
| 1465 ((spx_word16_t*)ptr)[i] = st->exc_rms[i]; |
| 1466 } |
| 1467 break; |
| 1468 case SPEEX_GET_DTX_STATUS: |
| 1469 speex_decoder_ctl(st->st_low, SPEEX_GET_DTX_STATUS, ptr); |
| 1470 break; |
| 1471 case SPEEX_SET_INNOVATION_SAVE: |
| 1472 st->innov_save = (spx_word16_t*)ptr; |
| 1473 break; |
| 1474 case SPEEX_SET_WIDEBAND: |
| 1475 speex_decoder_ctl(st->st_low, SPEEX_SET_WIDEBAND, ptr); |
| 1476 break; |
| 1477 case SPEEX_GET_STACK: |
| 1478 *((char**)ptr) = st->stack; |
| 1479 break; |
| 1480 default: |
| 1481 speex_warning_int("Unknown nb_ctl request: ", request); |
| 1482 return -1; |
| 1483 } |
| 1484 return 0; |
| 1485 } |
| 1486 |
| 1487 #endif |
| 1488 |
OLD | NEW |