Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2007-2008 CSIRO |
| 2 | Copyright (c) 2007-2010 Xiph.Org Foundation |
| 3 | Copyright (c) 2008 Gregory Maxwell |
| 4 | Written by Jean-Marc Valin and Gregory Maxwell */ |
| 5 | /* |
| 6 | Redistribution and use in source and binary forms, with or without |
| 7 | modification, are permitted provided that the following conditions |
| 8 | are met: |
| 9 | |
| 10 | - Redistributions of source code must retain the above copyright |
| 11 | notice, this list of conditions and the following disclaimer. |
| 12 | |
| 13 | - Redistributions in binary form must reproduce the above copyright |
| 14 | notice, this list of conditions and the following disclaimer in the |
| 15 | documentation and/or other materials provided with the distribution. |
| 16 | |
| 17 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 18 | ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 19 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 20 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER |
| 21 | OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 22 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 23 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 24 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 25 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 26 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 27 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 28 | */ |
| 29 | |
| 30 | #ifdef HAVE_CONFIG_H |
| 31 | #include "config.h" |
| 32 | #endif |
| 33 | |
| 34 | #define CELT_ENCODER_C |
| 35 | |
| 36 | #include "cpu_support.h" |
| 37 | #include "os_support.h" |
| 38 | #include "mdct.h" |
| 39 | #include <math.h> |
| 40 | #include "celt.h" |
| 41 | #include "pitch.h" |
| 42 | #include "bands.h" |
| 43 | #include "modes.h" |
| 44 | #include "entcode.h" |
| 45 | #include "quant_bands.h" |
| 46 | #include "rate.h" |
| 47 | #include "stack_alloc.h" |
| 48 | #include "mathops.h" |
| 49 | #include "float_cast.h" |
| 50 | #include <stdarg.h> |
| 51 | #include "celt_lpc.h" |
| 52 | #include "vq.h" |
| 53 | |
| 54 | |
| 55 | /** Encoder state |
| 56 | @brief Encoder state |
| 57 | */ |
| 58 | struct OpusCustomEncoder { |
| 59 | const OpusCustomMode *mode; /**< Mode used by the encoder */ |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 60 | int channels; |
| 61 | int stream_channels; |
| 62 | |
| 63 | int force_intra; |
| 64 | int clip; |
| 65 | int disable_pf; |
| 66 | int complexity; |
| 67 | int upsample; |
| 68 | int start, end; |
| 69 | |
| 70 | opus_int32 bitrate; |
| 71 | int vbr; |
| 72 | int signalling; |
| 73 | int constrained_vbr; /* If zero, VBR can do whatever it likes with the rate */ |
| 74 | int loss_rate; |
| 75 | int lsb_depth; |
| 76 | int variable_duration; |
| 77 | int lfe; |
| 78 | int arch; |
| 79 | |
| 80 | /* Everything beyond this point gets cleared on a reset */ |
| 81 | #define ENCODER_RESET_START rng |
| 82 | |
| 83 | opus_uint32 rng; |
| 84 | int spread_decision; |
| 85 | opus_val32 delayedIntra; |
| 86 | int tonal_average; |
| 87 | int lastCodedBands; |
| 88 | int hf_average; |
| 89 | int tapset_decision; |
| 90 | |
| 91 | int prefilter_period; |
| 92 | opus_val16 prefilter_gain; |
| 93 | int prefilter_tapset; |
| 94 | #ifdef RESYNTH |
| 95 | int prefilter_period_old; |
| 96 | opus_val16 prefilter_gain_old; |
| 97 | int prefilter_tapset_old; |
| 98 | #endif |
| 99 | int consec_transient; |
| 100 | AnalysisInfo analysis; |
| 101 | |
| 102 | opus_val32 preemph_memE[2]; |
| 103 | opus_val32 preemph_memD[2]; |
| 104 | |
| 105 | /* VBR-related parameters */ |
| 106 | opus_int32 vbr_reservoir; |
| 107 | opus_int32 vbr_drift; |
| 108 | opus_int32 vbr_offset; |
| 109 | opus_int32 vbr_count; |
| 110 | opus_val32 overlap_max; |
| 111 | opus_val16 stereo_saving; |
| 112 | int intensity; |
| 113 | opus_val16 *energy_mask; |
| 114 | opus_val16 spec_avg; |
| 115 | |
| 116 | #ifdef RESYNTH |
| 117 | /* +MAX_PERIOD/2 to make space for overlap */ |
| 118 | celt_sig syn_mem[2][2*MAX_PERIOD+MAX_PERIOD/2]; |
| 119 | #endif |
| 120 | |
| 121 | celt_sig in_mem[1]; /* Size = channels*mode->overlap */ |
| 122 | /* celt_sig prefilter_mem[], Size = channels*COMBFILTER_MAXPERIOD */ |
| 123 | /* opus_val16 oldBandE[], Size = channels*mode->nbEBands */ |
| 124 | /* opus_val16 oldLogE[], Size = channels*mode->nbEBands */ |
| 125 | /* opus_val16 oldLogE2[], Size = channels*mode->nbEBands */ |
| 126 | }; |
| 127 | |
| 128 | int celt_encoder_get_size(int channels) |
| 129 | { |
| 130 | CELTMode *mode = opus_custom_mode_create(48000, 960, NULL); |
| 131 | return opus_custom_encoder_get_size(mode, channels); |
| 132 | } |
| 133 | |
| 134 | OPUS_CUSTOM_NOSTATIC int opus_custom_encoder_get_size(const CELTMode *mode, int channels) |
| 135 | { |
| 136 | int size = sizeof(struct CELTEncoder) |
| 137 | + (channels*mode->overlap-1)*sizeof(celt_sig) /* celt_sig in_mem[channels*mode->overlap]; */ |
| 138 | + channels*COMBFILTER_MAXPERIOD*sizeof(celt_sig) /* celt_sig prefilter_mem[channels*COMBFILTER_MAXPERIOD]; */ |
| 139 | + 3*channels*mode->nbEBands*sizeof(opus_val16); /* opus_val16 oldBandE[channels*mode->nbEBands]; */ |
| 140 | /* opus_val16 oldLogE[channels*mode->nbEBands]; */ |
| 141 | /* opus_val16 oldLogE2[channels*mode->nbEBands]; */ |
| 142 | return size; |
| 143 | } |
| 144 | |
| 145 | #ifdef CUSTOM_MODES |
| 146 | CELTEncoder *opus_custom_encoder_create(const CELTMode *mode, int channels, int *error) |
| 147 | { |
| 148 | int ret; |
| 149 | CELTEncoder *st = (CELTEncoder *)opus_alloc(opus_custom_encoder_get_size(mode, channels)); |
| 150 | /* init will handle the NULL case */ |
| 151 | ret = opus_custom_encoder_init(st, mode, channels); |
| 152 | if (ret != OPUS_OK) |
| 153 | { |
| 154 | opus_custom_encoder_destroy(st); |
| 155 | st = NULL; |
| 156 | } |
| 157 | if (error) |
| 158 | *error = ret; |
| 159 | return st; |
| 160 | } |
| 161 | #endif /* CUSTOM_MODES */ |
| 162 | |
| 163 | static int opus_custom_encoder_init_arch(CELTEncoder *st, const CELTMode *mode, |
| 164 | int channels, int arch) |
| 165 | { |
| 166 | if (channels < 0 || channels > 2) |
| 167 | return OPUS_BAD_ARG; |
| 168 | |
| 169 | if (st==NULL || mode==NULL) |
| 170 | return OPUS_ALLOC_FAIL; |
| 171 | |
| 172 | OPUS_CLEAR((char*)st, opus_custom_encoder_get_size(mode, channels)); |
| 173 | |
| 174 | st->mode = mode; |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 175 | st->stream_channels = st->channels = channels; |
| 176 | |
| 177 | st->upsample = 1; |
| 178 | st->start = 0; |
| 179 | st->end = st->mode->effEBands; |
| 180 | st->signalling = 1; |
| 181 | |
| 182 | st->arch = arch; |
| 183 | |
| 184 | st->constrained_vbr = 1; |
| 185 | st->clip = 1; |
| 186 | |
| 187 | st->bitrate = OPUS_BITRATE_MAX; |
| 188 | st->vbr = 0; |
| 189 | st->force_intra = 0; |
| 190 | st->complexity = 5; |
| 191 | st->lsb_depth=24; |
| 192 | |
| 193 | opus_custom_encoder_ctl(st, OPUS_RESET_STATE); |
| 194 | |
| 195 | return OPUS_OK; |
| 196 | } |
| 197 | |
| 198 | #ifdef CUSTOM_MODES |
| 199 | int opus_custom_encoder_init(CELTEncoder *st, const CELTMode *mode, int channels) |
| 200 | { |
| 201 | return opus_custom_encoder_init_arch(st, mode, channels, opus_select_arch()); |
| 202 | } |
| 203 | #endif |
| 204 | |
| 205 | int celt_encoder_init(CELTEncoder *st, opus_int32 sampling_rate, int channels, |
| 206 | int arch) |
| 207 | { |
| 208 | int ret; |
| 209 | ret = opus_custom_encoder_init_arch(st, |
| 210 | opus_custom_mode_create(48000, 960, NULL), channels, arch); |
| 211 | if (ret != OPUS_OK) |
| 212 | return ret; |
| 213 | st->upsample = resampling_factor(sampling_rate); |
| 214 | return OPUS_OK; |
| 215 | } |
| 216 | |
| 217 | #ifdef CUSTOM_MODES |
| 218 | void opus_custom_encoder_destroy(CELTEncoder *st) |
| 219 | { |
| 220 | opus_free(st); |
| 221 | } |
| 222 | #endif /* CUSTOM_MODES */ |
| 223 | |
| 224 | |
| 225 | static int transient_analysis(const opus_val32 * OPUS_RESTRICT in, int len, int C, |
| 226 | opus_val16 *tf_estimate, int *tf_chan) |
| 227 | { |
| 228 | int i; |
| 229 | VARDECL(opus_val16, tmp); |
| 230 | opus_val32 mem0,mem1; |
| 231 | int is_transient = 0; |
| 232 | opus_int32 mask_metric = 0; |
| 233 | int c; |
| 234 | opus_val16 tf_max; |
| 235 | int len2; |
| 236 | /* Table of 6*64/x, trained on real data to minimize the average error */ |
| 237 | static const unsigned char inv_table[128] = { |
| 238 | 255,255,156,110, 86, 70, 59, 51, 45, 40, 37, 33, 31, 28, 26, 25, |
| 239 | 23, 22, 21, 20, 19, 18, 17, 16, 16, 15, 15, 14, 13, 13, 12, 12, |
| 240 | 12, 12, 11, 11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, |
| 241 | 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, |
| 242 | 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, |
| 243 | 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
| 244 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, |
| 245 | 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, |
| 246 | }; |
| 247 | SAVE_STACK; |
| 248 | ALLOC(tmp, len, opus_val16); |
| 249 | |
| 250 | len2=len/2; |
| 251 | for (c=0;c<C;c++) |
| 252 | { |
| 253 | opus_val32 mean; |
| 254 | opus_int32 unmask=0; |
| 255 | opus_val32 norm; |
| 256 | opus_val16 maxE; |
| 257 | mem0=0; |
| 258 | mem1=0; |
| 259 | /* High-pass filter: (1 - 2*z^-1 + z^-2) / (1 - z^-1 + .5*z^-2) */ |
| 260 | for (i=0;i<len;i++) |
| 261 | { |
| 262 | opus_val32 x,y; |
| 263 | x = SHR32(in[i+c*len],SIG_SHIFT); |
| 264 | y = ADD32(mem0, x); |
| 265 | #ifdef FIXED_POINT |
| 266 | mem0 = mem1 + y - SHL32(x,1); |
| 267 | mem1 = x - SHR32(y,1); |
| 268 | #else |
| 269 | mem0 = mem1 + y - 2*x; |
| 270 | mem1 = x - .5f*y; |
| 271 | #endif |
| 272 | tmp[i] = EXTRACT16(SHR32(y,2)); |
| 273 | /*printf("%f ", tmp[i]);*/ |
| 274 | } |
| 275 | /*printf("\n");*/ |
| 276 | /* First few samples are bad because we don't propagate the memory */ |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 277 | OPUS_CLEAR(tmp, 12); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 278 | |
| 279 | #ifdef FIXED_POINT |
| 280 | /* Normalize tmp to max range */ |
| 281 | { |
| 282 | int shift=0; |
| 283 | shift = 14-celt_ilog2(1+celt_maxabs16(tmp, len)); |
| 284 | if (shift!=0) |
| 285 | { |
| 286 | for (i=0;i<len;i++) |
| 287 | tmp[i] = SHL16(tmp[i], shift); |
| 288 | } |
| 289 | } |
| 290 | #endif |
| 291 | |
| 292 | mean=0; |
| 293 | mem0=0; |
| 294 | /* Grouping by two to reduce complexity */ |
| 295 | /* Forward pass to compute the post-echo threshold*/ |
| 296 | for (i=0;i<len2;i++) |
| 297 | { |
| 298 | opus_val16 x2 = PSHR32(MULT16_16(tmp[2*i],tmp[2*i]) + MULT16_16(tmp[2*i+1],tmp[2*i+1]),16); |
| 299 | mean += x2; |
| 300 | #ifdef FIXED_POINT |
| 301 | /* FIXME: Use PSHR16() instead */ |
| 302 | tmp[i] = mem0 + PSHR32(x2-mem0,4); |
| 303 | #else |
| 304 | tmp[i] = mem0 + MULT16_16_P15(QCONST16(.0625f,15),x2-mem0); |
| 305 | #endif |
| 306 | mem0 = tmp[i]; |
| 307 | } |
| 308 | |
| 309 | mem0=0; |
| 310 | maxE=0; |
| 311 | /* Backward pass to compute the pre-echo threshold */ |
| 312 | for (i=len2-1;i>=0;i--) |
| 313 | { |
| 314 | #ifdef FIXED_POINT |
| 315 | /* FIXME: Use PSHR16() instead */ |
| 316 | tmp[i] = mem0 + PSHR32(tmp[i]-mem0,3); |
| 317 | #else |
| 318 | tmp[i] = mem0 + MULT16_16_P15(QCONST16(0.125f,15),tmp[i]-mem0); |
| 319 | #endif |
| 320 | mem0 = tmp[i]; |
| 321 | maxE = MAX16(maxE, mem0); |
| 322 | } |
| 323 | /*for (i=0;i<len2;i++)printf("%f ", tmp[i]/mean);printf("\n");*/ |
| 324 | |
| 325 | /* Compute the ratio of the "frame energy" over the harmonic mean of the energy. |
| 326 | This essentially corresponds to a bitrate-normalized temporal noise-to-mask |
| 327 | ratio */ |
| 328 | |
| 329 | /* As a compromise with the old transient detector, frame energy is the |
| 330 | geometric mean of the energy and half the max */ |
| 331 | #ifdef FIXED_POINT |
| 332 | /* Costs two sqrt() to avoid overflows */ |
| 333 | mean = MULT16_16(celt_sqrt(mean), celt_sqrt(MULT16_16(maxE,len2>>1))); |
| 334 | #else |
| 335 | mean = celt_sqrt(mean * maxE*.5*len2); |
| 336 | #endif |
| 337 | /* Inverse of the mean energy in Q15+6 */ |
| 338 | norm = SHL32(EXTEND32(len2),6+14)/ADD32(EPSILON,SHR32(mean,1)); |
| 339 | /* Compute harmonic mean discarding the unreliable boundaries |
| 340 | The data is smooth, so we only take 1/4th of the samples */ |
| 341 | unmask=0; |
| 342 | for (i=12;i<len2-5;i+=4) |
| 343 | { |
| 344 | int id; |
| 345 | #ifdef FIXED_POINT |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 346 | id = MAX32(0,MIN32(127,MULT16_32_Q15(tmp[i]+EPSILON,norm))); /* Do not round to nearest */ |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 347 | #else |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 348 | id = (int)MAX32(0,MIN32(127,floor(64*norm*(tmp[i]+EPSILON)))); /* Do not round to nearest */ |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 349 | #endif |
| 350 | unmask += inv_table[id]; |
| 351 | } |
| 352 | /*printf("%d\n", unmask);*/ |
| 353 | /* Normalize, compensate for the 1/4th of the sample and the factor of 6 in the inverse table */ |
| 354 | unmask = 64*unmask*4/(6*(len2-17)); |
| 355 | if (unmask>mask_metric) |
| 356 | { |
| 357 | *tf_chan = c; |
| 358 | mask_metric = unmask; |
| 359 | } |
| 360 | } |
| 361 | is_transient = mask_metric>200; |
| 362 | |
| 363 | /* Arbitrary metric for VBR boost */ |
| 364 | tf_max = MAX16(0,celt_sqrt(27*mask_metric)-42); |
| 365 | /* *tf_estimate = 1 + MIN16(1, sqrt(MAX16(0, tf_max-30))/20); */ |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 366 | *tf_estimate = celt_sqrt(MAX32(0, SHL32(MULT16_16(QCONST16(0.0069,14),MIN16(163,tf_max)),14)-QCONST32(0.139,28))); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 367 | /*printf("%d %f\n", tf_max, mask_metric);*/ |
| 368 | RESTORE_STACK; |
| 369 | #ifdef FUZZING |
| 370 | is_transient = rand()&0x1; |
| 371 | #endif |
| 372 | /*printf("%d %f %d\n", is_transient, (float)*tf_estimate, tf_max);*/ |
| 373 | return is_transient; |
| 374 | } |
| 375 | |
| 376 | /* Looks for sudden increases of energy to decide whether we need to patch |
| 377 | the transient decision */ |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 378 | static int patch_transient_decision(opus_val16 *newE, opus_val16 *oldE, int nbEBands, |
| 379 | int start, int end, int C) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 380 | { |
| 381 | int i, c; |
| 382 | opus_val32 mean_diff=0; |
| 383 | opus_val16 spread_old[26]; |
| 384 | /* Apply an aggressive (-6 dB/Bark) spreading function to the old frame to |
| 385 | avoid false detection caused by irrelevant bands */ |
| 386 | if (C==1) |
| 387 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 388 | spread_old[start] = oldE[start]; |
| 389 | for (i=start+1;i<end;i++) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 390 | spread_old[i] = MAX16(spread_old[i-1]-QCONST16(1.0f, DB_SHIFT), oldE[i]); |
| 391 | } else { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 392 | spread_old[start] = MAX16(oldE[start],oldE[start+nbEBands]); |
| 393 | for (i=start+1;i<end;i++) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 394 | spread_old[i] = MAX16(spread_old[i-1]-QCONST16(1.0f, DB_SHIFT), |
| 395 | MAX16(oldE[i],oldE[i+nbEBands])); |
| 396 | } |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 397 | for (i=end-2;i>=start;i--) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 398 | spread_old[i] = MAX16(spread_old[i], spread_old[i+1]-QCONST16(1.0f, DB_SHIFT)); |
| 399 | /* Compute mean increase */ |
| 400 | c=0; do { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 401 | for (i=IMAX(2,start);i<end-1;i++) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 402 | { |
| 403 | opus_val16 x1, x2; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 404 | x1 = MAX16(0, newE[i + c*nbEBands]); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 405 | x2 = MAX16(0, spread_old[i]); |
| 406 | mean_diff = ADD32(mean_diff, EXTEND32(MAX16(0, SUB16(x1, x2)))); |
| 407 | } |
| 408 | } while (++c<C); |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 409 | mean_diff = DIV32(mean_diff, C*(end-1-IMAX(2,start))); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 410 | /*printf("%f %f %d\n", mean_diff, max_diff, count);*/ |
| 411 | return mean_diff > QCONST16(1.f, DB_SHIFT); |
| 412 | } |
| 413 | |
| 414 | /** Apply window and compute the MDCT for all sub-frames and |
| 415 | all channels in a frame */ |
| 416 | static void compute_mdcts(const CELTMode *mode, int shortBlocks, celt_sig * OPUS_RESTRICT in, |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 417 | celt_sig * OPUS_RESTRICT out, int C, int CC, int LM, int upsample, |
| 418 | int arch) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 419 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 420 | const int overlap = mode->overlap; |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 421 | int N; |
| 422 | int B; |
| 423 | int shift; |
| 424 | int i, b, c; |
| 425 | if (shortBlocks) |
| 426 | { |
| 427 | B = shortBlocks; |
| 428 | N = mode->shortMdctSize; |
| 429 | shift = mode->maxLM; |
| 430 | } else { |
| 431 | B = 1; |
| 432 | N = mode->shortMdctSize<<LM; |
| 433 | shift = mode->maxLM-LM; |
| 434 | } |
| 435 | c=0; do { |
| 436 | for (b=0;b<B;b++) |
| 437 | { |
| 438 | /* Interleaving the sub-frames while doing the MDCTs */ |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 439 | clt_mdct_forward(&mode->mdct, in+c*(B*N+overlap)+b*N, |
| 440 | &out[b+c*N*B], mode->window, overlap, shift, B, |
| 441 | arch); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 442 | } |
| 443 | } while (++c<CC); |
| 444 | if (CC==2&&C==1) |
| 445 | { |
| 446 | for (i=0;i<B*N;i++) |
| 447 | out[i] = ADD32(HALF32(out[i]), HALF32(out[B*N+i])); |
| 448 | } |
| 449 | if (upsample != 1) |
| 450 | { |
| 451 | c=0; do |
| 452 | { |
| 453 | int bound = B*N/upsample; |
| 454 | for (i=0;i<bound;i++) |
| 455 | out[c*B*N+i] *= upsample; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 456 | OPUS_CLEAR(&out[c*B*N+bound], B*N-bound); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 457 | } while (++c<C); |
| 458 | } |
| 459 | } |
| 460 | |
| 461 | |
| 462 | void celt_preemphasis(const opus_val16 * OPUS_RESTRICT pcmp, celt_sig * OPUS_RESTRICT inp, |
| 463 | int N, int CC, int upsample, const opus_val16 *coef, celt_sig *mem, int clip) |
| 464 | { |
| 465 | int i; |
| 466 | opus_val16 coef0; |
| 467 | celt_sig m; |
| 468 | int Nu; |
| 469 | |
| 470 | coef0 = coef[0]; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 471 | m = *mem; |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 472 | |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 473 | /* Fast path for the normal 48kHz case and no clipping */ |
| 474 | if (coef[1] == 0 && upsample == 1 && !clip) |
| 475 | { |
| 476 | for (i=0;i<N;i++) |
| 477 | { |
| 478 | opus_val16 x; |
| 479 | x = SCALEIN(pcmp[CC*i]); |
| 480 | /* Apply pre-emphasis */ |
| 481 | inp[i] = SHL32(x, SIG_SHIFT) - m; |
| 482 | m = SHR32(MULT16_16(coef0, x), 15-SIG_SHIFT); |
| 483 | } |
| 484 | *mem = m; |
| 485 | return; |
| 486 | } |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 487 | |
| 488 | Nu = N/upsample; |
| 489 | if (upsample!=1) |
| 490 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 491 | OPUS_CLEAR(inp, N); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 492 | } |
| 493 | for (i=0;i<Nu;i++) |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 494 | inp[i*upsample] = SCALEIN(pcmp[CC*i]); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 495 | |
| 496 | #ifndef FIXED_POINT |
| 497 | if (clip) |
| 498 | { |
| 499 | /* Clip input to avoid encoding non-portable files */ |
| 500 | for (i=0;i<Nu;i++) |
| 501 | inp[i*upsample] = MAX32(-65536.f, MIN32(65536.f,inp[i*upsample])); |
| 502 | } |
| 503 | #else |
| 504 | (void)clip; /* Avoids a warning about clip being unused. */ |
| 505 | #endif |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 506 | #ifdef CUSTOM_MODES |
| 507 | if (coef[1] != 0) |
| 508 | { |
| 509 | opus_val16 coef1 = coef[1]; |
| 510 | opus_val16 coef2 = coef[2]; |
| 511 | for (i=0;i<N;i++) |
| 512 | { |
| 513 | celt_sig x, tmp; |
| 514 | x = inp[i]; |
| 515 | /* Apply pre-emphasis */ |
| 516 | tmp = MULT16_16(coef2, x); |
| 517 | inp[i] = tmp + m; |
| 518 | m = MULT16_32_Q15(coef1, inp[i]) - MULT16_32_Q15(coef0, tmp); |
| 519 | } |
| 520 | } else |
| 521 | #endif |
| 522 | { |
| 523 | for (i=0;i<N;i++) |
| 524 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 525 | opus_val16 x; |
| 526 | x = inp[i]; |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 527 | /* Apply pre-emphasis */ |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 528 | inp[i] = SHL32(x, SIG_SHIFT) - m; |
| 529 | m = SHR32(MULT16_16(coef0, x), 15-SIG_SHIFT); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 530 | } |
| 531 | } |
| 532 | *mem = m; |
| 533 | } |
| 534 | |
| 535 | |
| 536 | |
| 537 | static opus_val32 l1_metric(const celt_norm *tmp, int N, int LM, opus_val16 bias) |
| 538 | { |
| 539 | int i; |
| 540 | opus_val32 L1; |
| 541 | L1 = 0; |
| 542 | for (i=0;i<N;i++) |
| 543 | L1 += EXTEND32(ABS16(tmp[i])); |
| 544 | /* When in doubt, prefer good freq resolution */ |
| 545 | L1 = MAC16_32_Q15(L1, LM*bias, L1); |
| 546 | return L1; |
| 547 | |
| 548 | } |
| 549 | |
| 550 | static int tf_analysis(const CELTMode *m, int len, int isTransient, |
| 551 | int *tf_res, int lambda, celt_norm *X, int N0, int LM, |
| 552 | int *tf_sum, opus_val16 tf_estimate, int tf_chan) |
| 553 | { |
| 554 | int i; |
| 555 | VARDECL(int, metric); |
| 556 | int cost0; |
| 557 | int cost1; |
| 558 | VARDECL(int, path0); |
| 559 | VARDECL(int, path1); |
| 560 | VARDECL(celt_norm, tmp); |
| 561 | VARDECL(celt_norm, tmp_1); |
| 562 | int sel; |
| 563 | int selcost[2]; |
| 564 | int tf_select=0; |
| 565 | opus_val16 bias; |
| 566 | |
| 567 | SAVE_STACK; |
| 568 | bias = MULT16_16_Q14(QCONST16(.04f,15), MAX16(-QCONST16(.25f,14), QCONST16(.5f,14)-tf_estimate)); |
| 569 | /*printf("%f ", bias);*/ |
| 570 | |
| 571 | ALLOC(metric, len, int); |
| 572 | ALLOC(tmp, (m->eBands[len]-m->eBands[len-1])<<LM, celt_norm); |
| 573 | ALLOC(tmp_1, (m->eBands[len]-m->eBands[len-1])<<LM, celt_norm); |
| 574 | ALLOC(path0, len, int); |
| 575 | ALLOC(path1, len, int); |
| 576 | |
| 577 | *tf_sum = 0; |
| 578 | for (i=0;i<len;i++) |
| 579 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 580 | int k, N; |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 581 | int narrow; |
| 582 | opus_val32 L1, best_L1; |
| 583 | int best_level=0; |
| 584 | N = (m->eBands[i+1]-m->eBands[i])<<LM; |
| 585 | /* band is too narrow to be split down to LM=-1 */ |
| 586 | narrow = (m->eBands[i+1]-m->eBands[i])==1; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 587 | OPUS_COPY(tmp, &X[tf_chan*N0 + (m->eBands[i]<<LM)], N); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 588 | /* Just add the right channel if we're in stereo */ |
| 589 | /*if (C==2) |
| 590 | for (j=0;j<N;j++) |
| 591 | tmp[j] = ADD16(SHR16(tmp[j], 1),SHR16(X[N0+j+(m->eBands[i]<<LM)], 1));*/ |
| 592 | L1 = l1_metric(tmp, N, isTransient ? LM : 0, bias); |
| 593 | best_L1 = L1; |
| 594 | /* Check the -1 case for transients */ |
| 595 | if (isTransient && !narrow) |
| 596 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 597 | OPUS_COPY(tmp_1, tmp, N); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 598 | haar1(tmp_1, N>>LM, 1<<LM); |
| 599 | L1 = l1_metric(tmp_1, N, LM+1, bias); |
| 600 | if (L1<best_L1) |
| 601 | { |
| 602 | best_L1 = L1; |
| 603 | best_level = -1; |
| 604 | } |
| 605 | } |
| 606 | /*printf ("%f ", L1);*/ |
| 607 | for (k=0;k<LM+!(isTransient||narrow);k++) |
| 608 | { |
| 609 | int B; |
| 610 | |
| 611 | if (isTransient) |
| 612 | B = (LM-k-1); |
| 613 | else |
| 614 | B = k+1; |
| 615 | |
| 616 | haar1(tmp, N>>k, 1<<k); |
| 617 | |
| 618 | L1 = l1_metric(tmp, N, B, bias); |
| 619 | |
| 620 | if (L1 < best_L1) |
| 621 | { |
| 622 | best_L1 = L1; |
| 623 | best_level = k+1; |
| 624 | } |
| 625 | } |
| 626 | /*printf ("%d ", isTransient ? LM-best_level : best_level);*/ |
| 627 | /* metric is in Q1 to be able to select the mid-point (-0.5) for narrower bands */ |
| 628 | if (isTransient) |
| 629 | metric[i] = 2*best_level; |
| 630 | else |
| 631 | metric[i] = -2*best_level; |
| 632 | *tf_sum += (isTransient ? LM : 0) - metric[i]/2; |
| 633 | /* For bands that can't be split to -1, set the metric to the half-way point to avoid |
| 634 | biasing the decision */ |
| 635 | if (narrow && (metric[i]==0 || metric[i]==-2*LM)) |
| 636 | metric[i]-=1; |
| 637 | /*printf("%d ", metric[i]);*/ |
| 638 | } |
| 639 | /*printf("\n");*/ |
| 640 | /* Search for the optimal tf resolution, including tf_select */ |
| 641 | tf_select = 0; |
| 642 | for (sel=0;sel<2;sel++) |
| 643 | { |
| 644 | cost0 = 0; |
| 645 | cost1 = isTransient ? 0 : lambda; |
| 646 | for (i=1;i<len;i++) |
| 647 | { |
| 648 | int curr0, curr1; |
| 649 | curr0 = IMIN(cost0, cost1 + lambda); |
| 650 | curr1 = IMIN(cost0 + lambda, cost1); |
| 651 | cost0 = curr0 + abs(metric[i]-2*tf_select_table[LM][4*isTransient+2*sel+0]); |
| 652 | cost1 = curr1 + abs(metric[i]-2*tf_select_table[LM][4*isTransient+2*sel+1]); |
| 653 | } |
| 654 | cost0 = IMIN(cost0, cost1); |
| 655 | selcost[sel]=cost0; |
| 656 | } |
| 657 | /* For now, we're conservative and only allow tf_select=1 for transients. |
| 658 | * If tests confirm it's useful for non-transients, we could allow it. */ |
| 659 | if (selcost[1]<selcost[0] && isTransient) |
| 660 | tf_select=1; |
| 661 | cost0 = 0; |
| 662 | cost1 = isTransient ? 0 : lambda; |
| 663 | /* Viterbi forward pass */ |
| 664 | for (i=1;i<len;i++) |
| 665 | { |
| 666 | int curr0, curr1; |
| 667 | int from0, from1; |
| 668 | |
| 669 | from0 = cost0; |
| 670 | from1 = cost1 + lambda; |
| 671 | if (from0 < from1) |
| 672 | { |
| 673 | curr0 = from0; |
| 674 | path0[i]= 0; |
| 675 | } else { |
| 676 | curr0 = from1; |
| 677 | path0[i]= 1; |
| 678 | } |
| 679 | |
| 680 | from0 = cost0 + lambda; |
| 681 | from1 = cost1; |
| 682 | if (from0 < from1) |
| 683 | { |
| 684 | curr1 = from0; |
| 685 | path1[i]= 0; |
| 686 | } else { |
| 687 | curr1 = from1; |
| 688 | path1[i]= 1; |
| 689 | } |
| 690 | cost0 = curr0 + abs(metric[i]-2*tf_select_table[LM][4*isTransient+2*tf_select+0]); |
| 691 | cost1 = curr1 + abs(metric[i]-2*tf_select_table[LM][4*isTransient+2*tf_select+1]); |
| 692 | } |
| 693 | tf_res[len-1] = cost0 < cost1 ? 0 : 1; |
| 694 | /* Viterbi backward pass to check the decisions */ |
| 695 | for (i=len-2;i>=0;i--) |
| 696 | { |
| 697 | if (tf_res[i+1] == 1) |
| 698 | tf_res[i] = path1[i+1]; |
| 699 | else |
| 700 | tf_res[i] = path0[i+1]; |
| 701 | } |
| 702 | /*printf("%d %f\n", *tf_sum, tf_estimate);*/ |
| 703 | RESTORE_STACK; |
| 704 | #ifdef FUZZING |
| 705 | tf_select = rand()&0x1; |
| 706 | tf_res[0] = rand()&0x1; |
| 707 | for (i=1;i<len;i++) |
| 708 | tf_res[i] = tf_res[i-1] ^ ((rand()&0xF) == 0); |
| 709 | #endif |
| 710 | return tf_select; |
| 711 | } |
| 712 | |
| 713 | static void tf_encode(int start, int end, int isTransient, int *tf_res, int LM, int tf_select, ec_enc *enc) |
| 714 | { |
| 715 | int curr, i; |
| 716 | int tf_select_rsv; |
| 717 | int tf_changed; |
| 718 | int logp; |
| 719 | opus_uint32 budget; |
| 720 | opus_uint32 tell; |
| 721 | budget = enc->storage*8; |
| 722 | tell = ec_tell(enc); |
| 723 | logp = isTransient ? 2 : 4; |
| 724 | /* Reserve space to code the tf_select decision. */ |
| 725 | tf_select_rsv = LM>0 && tell+logp+1 <= budget; |
| 726 | budget -= tf_select_rsv; |
| 727 | curr = tf_changed = 0; |
| 728 | for (i=start;i<end;i++) |
| 729 | { |
| 730 | if (tell+logp<=budget) |
| 731 | { |
| 732 | ec_enc_bit_logp(enc, tf_res[i] ^ curr, logp); |
| 733 | tell = ec_tell(enc); |
| 734 | curr = tf_res[i]; |
| 735 | tf_changed |= curr; |
| 736 | } |
| 737 | else |
| 738 | tf_res[i] = curr; |
| 739 | logp = isTransient ? 4 : 5; |
| 740 | } |
| 741 | /* Only code tf_select if it would actually make a difference. */ |
| 742 | if (tf_select_rsv && |
| 743 | tf_select_table[LM][4*isTransient+0+tf_changed]!= |
| 744 | tf_select_table[LM][4*isTransient+2+tf_changed]) |
| 745 | ec_enc_bit_logp(enc, tf_select, 1); |
| 746 | else |
| 747 | tf_select = 0; |
| 748 | for (i=start;i<end;i++) |
| 749 | tf_res[i] = tf_select_table[LM][4*isTransient+2*tf_select+tf_res[i]]; |
| 750 | /*for(i=0;i<end;i++)printf("%d ", isTransient ? tf_res[i] : LM+tf_res[i]);printf("\n");*/ |
| 751 | } |
| 752 | |
| 753 | |
| 754 | static int alloc_trim_analysis(const CELTMode *m, const celt_norm *X, |
| 755 | const opus_val16 *bandLogE, int end, int LM, int C, int N0, |
| 756 | AnalysisInfo *analysis, opus_val16 *stereo_saving, opus_val16 tf_estimate, |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 757 | int intensity, opus_val16 surround_trim, int arch) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 758 | { |
| 759 | int i; |
| 760 | opus_val32 diff=0; |
| 761 | int c; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 762 | int trim_index; |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 763 | opus_val16 trim = QCONST16(5.f, 8); |
| 764 | opus_val16 logXC, logXC2; |
| 765 | if (C==2) |
| 766 | { |
| 767 | opus_val16 sum = 0; /* Q10 */ |
| 768 | opus_val16 minXC; /* Q10 */ |
| 769 | /* Compute inter-channel correlation for low frequencies */ |
| 770 | for (i=0;i<8;i++) |
| 771 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 772 | opus_val32 partial; |
| 773 | partial = celt_inner_prod(&X[m->eBands[i]<<LM], &X[N0+(m->eBands[i]<<LM)], |
| 774 | (m->eBands[i+1]-m->eBands[i])<<LM, arch); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 775 | sum = ADD16(sum, EXTRACT16(SHR32(partial, 18))); |
| 776 | } |
| 777 | sum = MULT16_16_Q15(QCONST16(1.f/8, 15), sum); |
| 778 | sum = MIN16(QCONST16(1.f, 10), ABS16(sum)); |
| 779 | minXC = sum; |
| 780 | for (i=8;i<intensity;i++) |
| 781 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 782 | opus_val32 partial; |
| 783 | partial = celt_inner_prod(&X[m->eBands[i]<<LM], &X[N0+(m->eBands[i]<<LM)], |
| 784 | (m->eBands[i+1]-m->eBands[i])<<LM, arch); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 785 | minXC = MIN16(minXC, ABS16(EXTRACT16(SHR32(partial, 18)))); |
| 786 | } |
| 787 | minXC = MIN16(QCONST16(1.f, 10), ABS16(minXC)); |
| 788 | /*printf ("%f\n", sum);*/ |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 789 | /* mid-side savings estimations based on the LF average*/ |
| 790 | logXC = celt_log2(QCONST32(1.001f, 20)-MULT16_16(sum, sum)); |
| 791 | /* mid-side savings estimations based on min correlation */ |
| 792 | logXC2 = MAX16(HALF16(logXC), celt_log2(QCONST32(1.001f, 20)-MULT16_16(minXC, minXC))); |
| 793 | #ifdef FIXED_POINT |
| 794 | /* Compensate for Q20 vs Q14 input and convert output to Q8 */ |
| 795 | logXC = PSHR32(logXC-QCONST16(6.f, DB_SHIFT),DB_SHIFT-8); |
| 796 | logXC2 = PSHR32(logXC2-QCONST16(6.f, DB_SHIFT),DB_SHIFT-8); |
| 797 | #endif |
| 798 | |
| 799 | trim += MAX16(-QCONST16(4.f, 8), MULT16_16_Q15(QCONST16(.75f,15),logXC)); |
| 800 | *stereo_saving = MIN16(*stereo_saving + QCONST16(0.25f, 8), -HALF16(logXC2)); |
| 801 | } |
| 802 | |
| 803 | /* Estimate spectral tilt */ |
| 804 | c=0; do { |
| 805 | for (i=0;i<end-1;i++) |
| 806 | { |
| 807 | diff += bandLogE[i+c*m->nbEBands]*(opus_int32)(2+2*i-end); |
| 808 | } |
| 809 | } while (++c<C); |
| 810 | diff /= C*(end-1); |
| 811 | /*printf("%f\n", diff);*/ |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 812 | trim -= MAX16(-QCONST16(2.f, 8), MIN16(QCONST16(2.f, 8), SHR16(diff+QCONST16(1.f, DB_SHIFT),DB_SHIFT-8)/6 )); |
| 813 | trim -= SHR16(surround_trim, DB_SHIFT-8); |
| 814 | trim -= 2*SHR16(tf_estimate, 14-8); |
| 815 | #ifndef DISABLE_FLOAT_API |
| 816 | if (analysis->valid) |
| 817 | { |
| 818 | trim -= MAX16(-QCONST16(2.f, 8), MIN16(QCONST16(2.f, 8), |
| 819 | (opus_val16)(QCONST16(2.f, 8)*(analysis->tonality_slope+.05f)))); |
| 820 | } |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 821 | #else |
| 822 | (void)analysis; |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 823 | #endif |
| 824 | |
| 825 | #ifdef FIXED_POINT |
| 826 | trim_index = PSHR32(trim, 8); |
| 827 | #else |
| 828 | trim_index = (int)floor(.5f+trim); |
| 829 | #endif |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 830 | trim_index = IMAX(0, IMIN(10, trim_index)); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 831 | /*printf("%d\n", trim_index);*/ |
| 832 | #ifdef FUZZING |
| 833 | trim_index = rand()%11; |
| 834 | #endif |
| 835 | return trim_index; |
| 836 | } |
| 837 | |
| 838 | static int stereo_analysis(const CELTMode *m, const celt_norm *X, |
| 839 | int LM, int N0) |
| 840 | { |
| 841 | int i; |
| 842 | int thetas; |
| 843 | opus_val32 sumLR = EPSILON, sumMS = EPSILON; |
| 844 | |
| 845 | /* Use the L1 norm to model the entropy of the L/R signal vs the M/S signal */ |
| 846 | for (i=0;i<13;i++) |
| 847 | { |
| 848 | int j; |
| 849 | for (j=m->eBands[i]<<LM;j<m->eBands[i+1]<<LM;j++) |
| 850 | { |
| 851 | opus_val32 L, R, M, S; |
| 852 | /* We cast to 32-bit first because of the -32768 case */ |
| 853 | L = EXTEND32(X[j]); |
| 854 | R = EXTEND32(X[N0+j]); |
| 855 | M = ADD32(L, R); |
| 856 | S = SUB32(L, R); |
| 857 | sumLR = ADD32(sumLR, ADD32(ABS32(L), ABS32(R))); |
| 858 | sumMS = ADD32(sumMS, ADD32(ABS32(M), ABS32(S))); |
| 859 | } |
| 860 | } |
| 861 | sumMS = MULT16_32_Q15(QCONST16(0.707107f, 15), sumMS); |
| 862 | thetas = 13; |
| 863 | /* We don't need thetas for lower bands with LM<=1 */ |
| 864 | if (LM<=1) |
| 865 | thetas -= 8; |
| 866 | return MULT16_32_Q15((m->eBands[13]<<(LM+1))+thetas, sumMS) |
| 867 | > MULT16_32_Q15(m->eBands[13]<<(LM+1), sumLR); |
| 868 | } |
| 869 | |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 870 | #define MSWAP(a,b) do {opus_val16 tmp = a;a=b;b=tmp;} while(0) |
| 871 | static opus_val16 median_of_5(const opus_val16 *x) |
| 872 | { |
| 873 | opus_val16 t0, t1, t2, t3, t4; |
| 874 | t2 = x[2]; |
| 875 | if (x[0] > x[1]) |
| 876 | { |
| 877 | t0 = x[1]; |
| 878 | t1 = x[0]; |
| 879 | } else { |
| 880 | t0 = x[0]; |
| 881 | t1 = x[1]; |
| 882 | } |
| 883 | if (x[3] > x[4]) |
| 884 | { |
| 885 | t3 = x[4]; |
| 886 | t4 = x[3]; |
| 887 | } else { |
| 888 | t3 = x[3]; |
| 889 | t4 = x[4]; |
| 890 | } |
| 891 | if (t0 > t3) |
| 892 | { |
| 893 | MSWAP(t0, t3); |
| 894 | MSWAP(t1, t4); |
| 895 | } |
| 896 | if (t2 > t1) |
| 897 | { |
| 898 | if (t1 < t3) |
| 899 | return MIN16(t2, t3); |
| 900 | else |
| 901 | return MIN16(t4, t1); |
| 902 | } else { |
| 903 | if (t2 < t3) |
| 904 | return MIN16(t1, t3); |
| 905 | else |
| 906 | return MIN16(t2, t4); |
| 907 | } |
| 908 | } |
| 909 | |
| 910 | static opus_val16 median_of_3(const opus_val16 *x) |
| 911 | { |
| 912 | opus_val16 t0, t1, t2; |
| 913 | if (x[0] > x[1]) |
| 914 | { |
| 915 | t0 = x[1]; |
| 916 | t1 = x[0]; |
| 917 | } else { |
| 918 | t0 = x[0]; |
| 919 | t1 = x[1]; |
| 920 | } |
| 921 | t2 = x[2]; |
| 922 | if (t1 < t2) |
| 923 | return t1; |
| 924 | else if (t0 < t2) |
| 925 | return t2; |
| 926 | else |
| 927 | return t0; |
| 928 | } |
| 929 | |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 930 | static opus_val16 dynalloc_analysis(const opus_val16 *bandLogE, const opus_val16 *bandLogE2, |
| 931 | int nbEBands, int start, int end, int C, int *offsets, int lsb_depth, const opus_int16 *logN, |
| 932 | int isTransient, int vbr, int constrained_vbr, const opus_int16 *eBands, int LM, |
| 933 | int effectiveBytes, opus_int32 *tot_boost_, int lfe, opus_val16 *surround_dynalloc) |
| 934 | { |
| 935 | int i, c; |
| 936 | opus_int32 tot_boost=0; |
| 937 | opus_val16 maxDepth; |
| 938 | VARDECL(opus_val16, follower); |
| 939 | VARDECL(opus_val16, noise_floor); |
| 940 | SAVE_STACK; |
| 941 | ALLOC(follower, C*nbEBands, opus_val16); |
| 942 | ALLOC(noise_floor, C*nbEBands, opus_val16); |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 943 | OPUS_CLEAR(offsets, nbEBands); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 944 | /* Dynamic allocation code */ |
| 945 | maxDepth=-QCONST16(31.9f, DB_SHIFT); |
| 946 | for (i=0;i<end;i++) |
| 947 | { |
| 948 | /* Noise floor must take into account eMeans, the depth, the width of the bands |
| 949 | and the preemphasis filter (approx. square of bark band ID) */ |
| 950 | noise_floor[i] = MULT16_16(QCONST16(0.0625f, DB_SHIFT),logN[i]) |
| 951 | +QCONST16(.5f,DB_SHIFT)+SHL16(9-lsb_depth,DB_SHIFT)-SHL16(eMeans[i],6) |
| 952 | +MULT16_16(QCONST16(.0062,DB_SHIFT),(i+5)*(i+5)); |
| 953 | } |
| 954 | c=0;do |
| 955 | { |
| 956 | for (i=0;i<end;i++) |
| 957 | maxDepth = MAX16(maxDepth, bandLogE[c*nbEBands+i]-noise_floor[i]); |
| 958 | } while (++c<C); |
| 959 | /* Make sure that dynamic allocation can't make us bust the budget */ |
| 960 | if (effectiveBytes > 50 && LM>=1 && !lfe) |
| 961 | { |
| 962 | int last=0; |
| 963 | c=0;do |
| 964 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 965 | opus_val16 offset; |
| 966 | opus_val16 tmp; |
| 967 | opus_val16 *f; |
| 968 | f = &follower[c*nbEBands]; |
| 969 | f[0] = bandLogE2[c*nbEBands]; |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 970 | for (i=1;i<end;i++) |
| 971 | { |
| 972 | /* The last band to be at least 3 dB higher than the previous one |
| 973 | is the last we'll consider. Otherwise, we run into problems on |
| 974 | bandlimited signals. */ |
| 975 | if (bandLogE2[c*nbEBands+i] > bandLogE2[c*nbEBands+i-1]+QCONST16(.5f,DB_SHIFT)) |
| 976 | last=i; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 977 | f[i] = MIN16(f[i-1]+QCONST16(1.5f,DB_SHIFT), bandLogE2[c*nbEBands+i]); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 978 | } |
| 979 | for (i=last-1;i>=0;i--) |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 980 | f[i] = MIN16(f[i], MIN16(f[i+1]+QCONST16(2.f,DB_SHIFT), bandLogE2[c*nbEBands+i])); |
| 981 | |
| 982 | /* Combine with a median filter to avoid dynalloc triggering unnecessarily. |
| 983 | The "offset" value controls how conservative we are -- a higher offset |
| 984 | reduces the impact of the median filter and makes dynalloc use more bits. */ |
| 985 | offset = QCONST16(1.f, DB_SHIFT); |
| 986 | for (i=2;i<end-2;i++) |
| 987 | f[i] = MAX16(f[i], median_of_5(&bandLogE2[c*nbEBands+i-2])-offset); |
| 988 | tmp = median_of_3(&bandLogE2[c*nbEBands])-offset; |
| 989 | f[0] = MAX16(f[0], tmp); |
| 990 | f[1] = MAX16(f[1], tmp); |
| 991 | tmp = median_of_3(&bandLogE2[c*nbEBands+end-3])-offset; |
| 992 | f[end-2] = MAX16(f[end-2], tmp); |
| 993 | f[end-1] = MAX16(f[end-1], tmp); |
| 994 | |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 995 | for (i=0;i<end;i++) |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 996 | f[i] = MAX16(f[i], noise_floor[i]); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 997 | } while (++c<C); |
| 998 | if (C==2) |
| 999 | { |
| 1000 | for (i=start;i<end;i++) |
| 1001 | { |
| 1002 | /* Consider 24 dB "cross-talk" */ |
| 1003 | follower[nbEBands+i] = MAX16(follower[nbEBands+i], follower[ i]-QCONST16(4.f,DB_SHIFT)); |
| 1004 | follower[ i] = MAX16(follower[ i], follower[nbEBands+i]-QCONST16(4.f,DB_SHIFT)); |
| 1005 | follower[i] = HALF16(MAX16(0, bandLogE[i]-follower[i]) + MAX16(0, bandLogE[nbEBands+i]-follower[nbEBands+i])); |
| 1006 | } |
| 1007 | } else { |
| 1008 | for (i=start;i<end;i++) |
| 1009 | { |
| 1010 | follower[i] = MAX16(0, bandLogE[i]-follower[i]); |
| 1011 | } |
| 1012 | } |
| 1013 | for (i=start;i<end;i++) |
| 1014 | follower[i] = MAX16(follower[i], surround_dynalloc[i]); |
| 1015 | /* For non-transient CBR/CVBR frames, halve the dynalloc contribution */ |
| 1016 | if ((!vbr || constrained_vbr)&&!isTransient) |
| 1017 | { |
| 1018 | for (i=start;i<end;i++) |
| 1019 | follower[i] = HALF16(follower[i]); |
| 1020 | } |
| 1021 | for (i=start;i<end;i++) |
| 1022 | { |
| 1023 | int width; |
| 1024 | int boost; |
| 1025 | int boost_bits; |
| 1026 | |
| 1027 | if (i<8) |
| 1028 | follower[i] *= 2; |
| 1029 | if (i>=12) |
| 1030 | follower[i] = HALF16(follower[i]); |
| 1031 | follower[i] = MIN16(follower[i], QCONST16(4, DB_SHIFT)); |
| 1032 | |
| 1033 | width = C*(eBands[i+1]-eBands[i])<<LM; |
| 1034 | if (width<6) |
| 1035 | { |
| 1036 | boost = (int)SHR32(EXTEND32(follower[i]),DB_SHIFT); |
| 1037 | boost_bits = boost*width<<BITRES; |
| 1038 | } else if (width > 48) { |
| 1039 | boost = (int)SHR32(EXTEND32(follower[i])*8,DB_SHIFT); |
| 1040 | boost_bits = (boost*width<<BITRES)/8; |
| 1041 | } else { |
| 1042 | boost = (int)SHR32(EXTEND32(follower[i])*width/6,DB_SHIFT); |
| 1043 | boost_bits = boost*6<<BITRES; |
| 1044 | } |
| 1045 | /* For CBR and non-transient CVBR frames, limit dynalloc to 1/4 of the bits */ |
| 1046 | if ((!vbr || (constrained_vbr&&!isTransient)) |
| 1047 | && (tot_boost+boost_bits)>>BITRES>>3 > effectiveBytes/4) |
| 1048 | { |
| 1049 | opus_int32 cap = ((effectiveBytes/4)<<BITRES<<3); |
| 1050 | offsets[i] = cap-tot_boost; |
| 1051 | tot_boost = cap; |
| 1052 | break; |
| 1053 | } else { |
| 1054 | offsets[i] = boost; |
| 1055 | tot_boost += boost_bits; |
| 1056 | } |
| 1057 | } |
| 1058 | } |
| 1059 | *tot_boost_ = tot_boost; |
| 1060 | RESTORE_STACK; |
| 1061 | return maxDepth; |
| 1062 | } |
| 1063 | |
| 1064 | |
| 1065 | static int run_prefilter(CELTEncoder *st, celt_sig *in, celt_sig *prefilter_mem, int CC, int N, |
| 1066 | int prefilter_tapset, int *pitch, opus_val16 *gain, int *qgain, int enabled, int nbAvailableBytes) |
| 1067 | { |
| 1068 | int c; |
| 1069 | VARDECL(celt_sig, _pre); |
| 1070 | celt_sig *pre[2]; |
| 1071 | const CELTMode *mode; |
| 1072 | int pitch_index; |
| 1073 | opus_val16 gain1; |
| 1074 | opus_val16 pf_threshold; |
| 1075 | int pf_on; |
| 1076 | int qg; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1077 | int overlap; |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1078 | SAVE_STACK; |
| 1079 | |
| 1080 | mode = st->mode; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1081 | overlap = mode->overlap; |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1082 | ALLOC(_pre, CC*(N+COMBFILTER_MAXPERIOD), celt_sig); |
| 1083 | |
| 1084 | pre[0] = _pre; |
| 1085 | pre[1] = _pre + (N+COMBFILTER_MAXPERIOD); |
| 1086 | |
| 1087 | |
| 1088 | c=0; do { |
| 1089 | OPUS_COPY(pre[c], prefilter_mem+c*COMBFILTER_MAXPERIOD, COMBFILTER_MAXPERIOD); |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1090 | OPUS_COPY(pre[c]+COMBFILTER_MAXPERIOD, in+c*(N+overlap)+overlap, N); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1091 | } while (++c<CC); |
| 1092 | |
| 1093 | if (enabled) |
| 1094 | { |
| 1095 | VARDECL(opus_val16, pitch_buf); |
| 1096 | ALLOC(pitch_buf, (COMBFILTER_MAXPERIOD+N)>>1, opus_val16); |
| 1097 | |
| 1098 | pitch_downsample(pre, pitch_buf, COMBFILTER_MAXPERIOD+N, CC, st->arch); |
| 1099 | /* Don't search for the fir last 1.5 octave of the range because |
| 1100 | there's too many false-positives due to short-term correlation */ |
| 1101 | pitch_search(pitch_buf+(COMBFILTER_MAXPERIOD>>1), pitch_buf, N, |
| 1102 | COMBFILTER_MAXPERIOD-3*COMBFILTER_MINPERIOD, &pitch_index, |
| 1103 | st->arch); |
| 1104 | pitch_index = COMBFILTER_MAXPERIOD-pitch_index; |
| 1105 | |
| 1106 | gain1 = remove_doubling(pitch_buf, COMBFILTER_MAXPERIOD, COMBFILTER_MINPERIOD, |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1107 | N, &pitch_index, st->prefilter_period, st->prefilter_gain, st->arch); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1108 | if (pitch_index > COMBFILTER_MAXPERIOD-2) |
| 1109 | pitch_index = COMBFILTER_MAXPERIOD-2; |
| 1110 | gain1 = MULT16_16_Q15(QCONST16(.7f,15),gain1); |
| 1111 | /*printf("%d %d %f %f\n", pitch_change, pitch_index, gain1, st->analysis.tonality);*/ |
| 1112 | if (st->loss_rate>2) |
| 1113 | gain1 = HALF32(gain1); |
| 1114 | if (st->loss_rate>4) |
| 1115 | gain1 = HALF32(gain1); |
| 1116 | if (st->loss_rate>8) |
| 1117 | gain1 = 0; |
| 1118 | } else { |
| 1119 | gain1 = 0; |
| 1120 | pitch_index = COMBFILTER_MINPERIOD; |
| 1121 | } |
| 1122 | |
| 1123 | /* Gain threshold for enabling the prefilter/postfilter */ |
| 1124 | pf_threshold = QCONST16(.2f,15); |
| 1125 | |
| 1126 | /* Adjusting the threshold based on rate and continuity */ |
| 1127 | if (abs(pitch_index-st->prefilter_period)*10>pitch_index) |
| 1128 | pf_threshold += QCONST16(.2f,15); |
| 1129 | if (nbAvailableBytes<25) |
| 1130 | pf_threshold += QCONST16(.1f,15); |
| 1131 | if (nbAvailableBytes<35) |
| 1132 | pf_threshold += QCONST16(.1f,15); |
| 1133 | if (st->prefilter_gain > QCONST16(.4f,15)) |
| 1134 | pf_threshold -= QCONST16(.1f,15); |
| 1135 | if (st->prefilter_gain > QCONST16(.55f,15)) |
| 1136 | pf_threshold -= QCONST16(.1f,15); |
| 1137 | |
| 1138 | /* Hard threshold at 0.2 */ |
| 1139 | pf_threshold = MAX16(pf_threshold, QCONST16(.2f,15)); |
| 1140 | if (gain1<pf_threshold) |
| 1141 | { |
| 1142 | gain1 = 0; |
| 1143 | pf_on = 0; |
| 1144 | qg = 0; |
| 1145 | } else { |
| 1146 | /*This block is not gated by a total bits check only because |
| 1147 | of the nbAvailableBytes check above.*/ |
| 1148 | if (ABS16(gain1-st->prefilter_gain)<QCONST16(.1f,15)) |
| 1149 | gain1=st->prefilter_gain; |
| 1150 | |
| 1151 | #ifdef FIXED_POINT |
| 1152 | qg = ((gain1+1536)>>10)/3-1; |
| 1153 | #else |
| 1154 | qg = (int)floor(.5f+gain1*32/3)-1; |
| 1155 | #endif |
| 1156 | qg = IMAX(0, IMIN(7, qg)); |
| 1157 | gain1 = QCONST16(0.09375f,15)*(qg+1); |
| 1158 | pf_on = 1; |
| 1159 | } |
| 1160 | /*printf("%d %f\n", pitch_index, gain1);*/ |
| 1161 | |
| 1162 | c=0; do { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1163 | int offset = mode->shortMdctSize-overlap; |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1164 | st->prefilter_period=IMAX(st->prefilter_period, COMBFILTER_MINPERIOD); |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1165 | OPUS_COPY(in+c*(N+overlap), st->in_mem+c*(overlap), overlap); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1166 | if (offset) |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1167 | comb_filter(in+c*(N+overlap)+overlap, pre[c]+COMBFILTER_MAXPERIOD, |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1168 | st->prefilter_period, st->prefilter_period, offset, -st->prefilter_gain, -st->prefilter_gain, |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1169 | st->prefilter_tapset, st->prefilter_tapset, NULL, 0, st->arch); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1170 | |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1171 | comb_filter(in+c*(N+overlap)+overlap+offset, pre[c]+COMBFILTER_MAXPERIOD+offset, |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1172 | st->prefilter_period, pitch_index, N-offset, -st->prefilter_gain, -gain1, |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1173 | st->prefilter_tapset, prefilter_tapset, mode->window, overlap, st->arch); |
| 1174 | OPUS_COPY(st->in_mem+c*(overlap), in+c*(N+overlap)+N, overlap); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1175 | |
| 1176 | if (N>COMBFILTER_MAXPERIOD) |
| 1177 | { |
| 1178 | OPUS_MOVE(prefilter_mem+c*COMBFILTER_MAXPERIOD, pre[c]+N, COMBFILTER_MAXPERIOD); |
| 1179 | } else { |
| 1180 | OPUS_MOVE(prefilter_mem+c*COMBFILTER_MAXPERIOD, prefilter_mem+c*COMBFILTER_MAXPERIOD+N, COMBFILTER_MAXPERIOD-N); |
| 1181 | OPUS_MOVE(prefilter_mem+c*COMBFILTER_MAXPERIOD+COMBFILTER_MAXPERIOD-N, pre[c]+COMBFILTER_MAXPERIOD, N); |
| 1182 | } |
| 1183 | } while (++c<CC); |
| 1184 | |
| 1185 | RESTORE_STACK; |
| 1186 | *gain = gain1; |
| 1187 | *pitch = pitch_index; |
| 1188 | *qgain = qg; |
| 1189 | return pf_on; |
| 1190 | } |
| 1191 | |
| 1192 | static int compute_vbr(const CELTMode *mode, AnalysisInfo *analysis, opus_int32 base_target, |
| 1193 | int LM, opus_int32 bitrate, int lastCodedBands, int C, int intensity, |
| 1194 | int constrained_vbr, opus_val16 stereo_saving, int tot_boost, |
| 1195 | opus_val16 tf_estimate, int pitch_change, opus_val16 maxDepth, |
| 1196 | int variable_duration, int lfe, int has_surround_mask, opus_val16 surround_masking, |
| 1197 | opus_val16 temporal_vbr) |
| 1198 | { |
| 1199 | /* The target rate in 8th bits per frame */ |
| 1200 | opus_int32 target; |
| 1201 | int coded_bins; |
| 1202 | int coded_bands; |
| 1203 | opus_val16 tf_calibration; |
| 1204 | int nbEBands; |
| 1205 | const opus_int16 *eBands; |
| 1206 | |
| 1207 | nbEBands = mode->nbEBands; |
| 1208 | eBands = mode->eBands; |
| 1209 | |
| 1210 | coded_bands = lastCodedBands ? lastCodedBands : nbEBands; |
| 1211 | coded_bins = eBands[coded_bands]<<LM; |
| 1212 | if (C==2) |
| 1213 | coded_bins += eBands[IMIN(intensity, coded_bands)]<<LM; |
| 1214 | |
| 1215 | target = base_target; |
| 1216 | |
| 1217 | /*printf("%f %f %f %f %d %d ", st->analysis.activity, st->analysis.tonality, tf_estimate, st->stereo_saving, tot_boost, coded_bands);*/ |
| 1218 | #ifndef DISABLE_FLOAT_API |
| 1219 | if (analysis->valid && analysis->activity<.4) |
| 1220 | target -= (opus_int32)((coded_bins<<BITRES)*(.4f-analysis->activity)); |
| 1221 | #endif |
| 1222 | /* Stereo savings */ |
| 1223 | if (C==2) |
| 1224 | { |
| 1225 | int coded_stereo_bands; |
| 1226 | int coded_stereo_dof; |
| 1227 | opus_val16 max_frac; |
| 1228 | coded_stereo_bands = IMIN(intensity, coded_bands); |
| 1229 | coded_stereo_dof = (eBands[coded_stereo_bands]<<LM)-coded_stereo_bands; |
| 1230 | /* Maximum fraction of the bits we can save if the signal is mono. */ |
| 1231 | max_frac = DIV32_16(MULT16_16(QCONST16(0.8f, 15), coded_stereo_dof), coded_bins); |
| 1232 | stereo_saving = MIN16(stereo_saving, QCONST16(1.f, 8)); |
| 1233 | /*printf("%d %d %d ", coded_stereo_dof, coded_bins, tot_boost);*/ |
| 1234 | target -= (opus_int32)MIN32(MULT16_32_Q15(max_frac,target), |
| 1235 | SHR32(MULT16_16(stereo_saving-QCONST16(0.1f,8),(coded_stereo_dof<<BITRES)),8)); |
| 1236 | } |
| 1237 | /* Boost the rate according to dynalloc (minus the dynalloc average for calibration). */ |
| 1238 | target += tot_boost-(16<<LM); |
| 1239 | /* Apply transient boost, compensating for average boost. */ |
| 1240 | tf_calibration = variable_duration==OPUS_FRAMESIZE_VARIABLE ? |
| 1241 | QCONST16(0.02f,14) : QCONST16(0.04f,14); |
| 1242 | target += (opus_int32)SHL32(MULT16_32_Q15(tf_estimate-tf_calibration, target),1); |
| 1243 | |
| 1244 | #ifndef DISABLE_FLOAT_API |
| 1245 | /* Apply tonality boost */ |
| 1246 | if (analysis->valid && !lfe) |
| 1247 | { |
| 1248 | opus_int32 tonal_target; |
| 1249 | float tonal; |
| 1250 | |
| 1251 | /* Tonality boost (compensating for the average). */ |
| 1252 | tonal = MAX16(0.f,analysis->tonality-.15f)-0.09f; |
| 1253 | tonal_target = target + (opus_int32)((coded_bins<<BITRES)*1.2f*tonal); |
| 1254 | if (pitch_change) |
| 1255 | tonal_target += (opus_int32)((coded_bins<<BITRES)*.8f); |
| 1256 | /*printf("%f %f ", analysis->tonality, tonal);*/ |
| 1257 | target = tonal_target; |
| 1258 | } |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1259 | #else |
| 1260 | (void)analysis; |
| 1261 | (void)pitch_change; |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1262 | #endif |
| 1263 | |
| 1264 | if (has_surround_mask&&!lfe) |
| 1265 | { |
| 1266 | opus_int32 surround_target = target + (opus_int32)SHR32(MULT16_16(surround_masking,coded_bins<<BITRES), DB_SHIFT); |
| 1267 | /*printf("%f %d %d %d %d %d %d ", surround_masking, coded_bins, st->end, st->intensity, surround_target, target, st->bitrate);*/ |
| 1268 | target = IMAX(target/4, surround_target); |
| 1269 | } |
| 1270 | |
| 1271 | { |
| 1272 | opus_int32 floor_depth; |
| 1273 | int bins; |
| 1274 | bins = eBands[nbEBands-2]<<LM; |
| 1275 | /*floor_depth = SHR32(MULT16_16((C*bins<<BITRES),celt_log2(SHL32(MAX16(1,sample_max),13))), DB_SHIFT);*/ |
| 1276 | floor_depth = (opus_int32)SHR32(MULT16_16((C*bins<<BITRES),maxDepth), DB_SHIFT); |
| 1277 | floor_depth = IMAX(floor_depth, target>>2); |
| 1278 | target = IMIN(target, floor_depth); |
| 1279 | /*printf("%f %d\n", maxDepth, floor_depth);*/ |
| 1280 | } |
| 1281 | |
| 1282 | if ((!has_surround_mask||lfe) && (constrained_vbr || bitrate<64000)) |
| 1283 | { |
| 1284 | opus_val16 rate_factor; |
| 1285 | #ifdef FIXED_POINT |
| 1286 | rate_factor = MAX16(0,(bitrate-32000)); |
| 1287 | #else |
| 1288 | rate_factor = MAX16(0,(1.f/32768)*(bitrate-32000)); |
| 1289 | #endif |
| 1290 | if (constrained_vbr) |
| 1291 | rate_factor = MIN16(rate_factor, QCONST16(0.67f, 15)); |
| 1292 | target = base_target + (opus_int32)MULT16_32_Q15(rate_factor, target-base_target); |
| 1293 | |
| 1294 | } |
| 1295 | |
| 1296 | if (!has_surround_mask && tf_estimate < QCONST16(.2f, 14)) |
| 1297 | { |
| 1298 | opus_val16 amount; |
| 1299 | opus_val16 tvbr_factor; |
| 1300 | amount = MULT16_16_Q15(QCONST16(.0000031f, 30), IMAX(0, IMIN(32000, 96000-bitrate))); |
| 1301 | tvbr_factor = SHR32(MULT16_16(temporal_vbr, amount), DB_SHIFT); |
| 1302 | target += (opus_int32)MULT16_32_Q15(tvbr_factor, target); |
| 1303 | } |
| 1304 | |
| 1305 | /* Don't allow more than doubling the rate */ |
| 1306 | target = IMIN(2*base_target, target); |
| 1307 | |
| 1308 | return target; |
| 1309 | } |
| 1310 | |
| 1311 | int celt_encode_with_ec(CELTEncoder * OPUS_RESTRICT st, const opus_val16 * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes, ec_enc *enc) |
| 1312 | { |
| 1313 | int i, c, N; |
| 1314 | opus_int32 bits; |
| 1315 | ec_enc _enc; |
| 1316 | VARDECL(celt_sig, in); |
| 1317 | VARDECL(celt_sig, freq); |
| 1318 | VARDECL(celt_norm, X); |
| 1319 | VARDECL(celt_ener, bandE); |
| 1320 | VARDECL(opus_val16, bandLogE); |
| 1321 | VARDECL(opus_val16, bandLogE2); |
| 1322 | VARDECL(int, fine_quant); |
| 1323 | VARDECL(opus_val16, error); |
| 1324 | VARDECL(int, pulses); |
| 1325 | VARDECL(int, cap); |
| 1326 | VARDECL(int, offsets); |
| 1327 | VARDECL(int, fine_priority); |
| 1328 | VARDECL(int, tf_res); |
| 1329 | VARDECL(unsigned char, collapse_masks); |
| 1330 | celt_sig *prefilter_mem; |
| 1331 | opus_val16 *oldBandE, *oldLogE, *oldLogE2; |
| 1332 | int shortBlocks=0; |
| 1333 | int isTransient=0; |
| 1334 | const int CC = st->channels; |
| 1335 | const int C = st->stream_channels; |
| 1336 | int LM, M; |
| 1337 | int tf_select; |
| 1338 | int nbFilledBytes, nbAvailableBytes; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1339 | int start; |
| 1340 | int end; |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1341 | int effEnd; |
| 1342 | int codedBands; |
| 1343 | int tf_sum; |
| 1344 | int alloc_trim; |
| 1345 | int pitch_index=COMBFILTER_MINPERIOD; |
| 1346 | opus_val16 gain1 = 0; |
| 1347 | int dual_stereo=0; |
| 1348 | int effectiveBytes; |
| 1349 | int dynalloc_logp; |
| 1350 | opus_int32 vbr_rate; |
| 1351 | opus_int32 total_bits; |
| 1352 | opus_int32 total_boost; |
| 1353 | opus_int32 balance; |
| 1354 | opus_int32 tell; |
| 1355 | int prefilter_tapset=0; |
| 1356 | int pf_on; |
| 1357 | int anti_collapse_rsv; |
| 1358 | int anti_collapse_on=0; |
| 1359 | int silence=0; |
| 1360 | int tf_chan = 0; |
| 1361 | opus_val16 tf_estimate; |
| 1362 | int pitch_change=0; |
| 1363 | opus_int32 tot_boost; |
| 1364 | opus_val32 sample_max; |
| 1365 | opus_val16 maxDepth; |
| 1366 | const OpusCustomMode *mode; |
| 1367 | int nbEBands; |
| 1368 | int overlap; |
| 1369 | const opus_int16 *eBands; |
| 1370 | int secondMdct; |
| 1371 | int signalBandwidth; |
| 1372 | int transient_got_disabled=0; |
| 1373 | opus_val16 surround_masking=0; |
| 1374 | opus_val16 temporal_vbr=0; |
| 1375 | opus_val16 surround_trim = 0; |
| 1376 | opus_int32 equiv_rate = 510000; |
| 1377 | VARDECL(opus_val16, surround_dynalloc); |
| 1378 | ALLOC_STACK; |
| 1379 | |
| 1380 | mode = st->mode; |
| 1381 | nbEBands = mode->nbEBands; |
| 1382 | overlap = mode->overlap; |
| 1383 | eBands = mode->eBands; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1384 | start = st->start; |
| 1385 | end = st->end; |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1386 | tf_estimate = 0; |
| 1387 | if (nbCompressedBytes<2 || pcm==NULL) |
| 1388 | { |
| 1389 | RESTORE_STACK; |
| 1390 | return OPUS_BAD_ARG; |
| 1391 | } |
| 1392 | |
| 1393 | frame_size *= st->upsample; |
| 1394 | for (LM=0;LM<=mode->maxLM;LM++) |
| 1395 | if (mode->shortMdctSize<<LM==frame_size) |
| 1396 | break; |
| 1397 | if (LM>mode->maxLM) |
| 1398 | { |
| 1399 | RESTORE_STACK; |
| 1400 | return OPUS_BAD_ARG; |
| 1401 | } |
| 1402 | M=1<<LM; |
| 1403 | N = M*mode->shortMdctSize; |
| 1404 | |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1405 | prefilter_mem = st->in_mem+CC*(overlap); |
| 1406 | oldBandE = (opus_val16*)(st->in_mem+CC*(overlap+COMBFILTER_MAXPERIOD)); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1407 | oldLogE = oldBandE + CC*nbEBands; |
| 1408 | oldLogE2 = oldLogE + CC*nbEBands; |
| 1409 | |
| 1410 | if (enc==NULL) |
| 1411 | { |
| 1412 | tell=1; |
| 1413 | nbFilledBytes=0; |
| 1414 | } else { |
| 1415 | tell=ec_tell(enc); |
| 1416 | nbFilledBytes=(tell+4)>>3; |
| 1417 | } |
| 1418 | |
| 1419 | #ifdef CUSTOM_MODES |
| 1420 | if (st->signalling && enc==NULL) |
| 1421 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1422 | int tmp = (mode->effEBands-end)>>1; |
| 1423 | end = st->end = IMAX(1, mode->effEBands-tmp); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1424 | compressed[0] = tmp<<5; |
| 1425 | compressed[0] |= LM<<3; |
| 1426 | compressed[0] |= (C==2)<<2; |
| 1427 | /* Convert "standard mode" to Opus header */ |
| 1428 | if (mode->Fs==48000 && mode->shortMdctSize==120) |
| 1429 | { |
| 1430 | int c0 = toOpus(compressed[0]); |
| 1431 | if (c0<0) |
| 1432 | { |
| 1433 | RESTORE_STACK; |
| 1434 | return OPUS_BAD_ARG; |
| 1435 | } |
| 1436 | compressed[0] = c0; |
| 1437 | } |
| 1438 | compressed++; |
| 1439 | nbCompressedBytes--; |
| 1440 | } |
| 1441 | #else |
| 1442 | celt_assert(st->signalling==0); |
| 1443 | #endif |
| 1444 | |
| 1445 | /* Can't produce more than 1275 output bytes */ |
| 1446 | nbCompressedBytes = IMIN(nbCompressedBytes,1275); |
| 1447 | nbAvailableBytes = nbCompressedBytes - nbFilledBytes; |
| 1448 | |
| 1449 | if (st->vbr && st->bitrate!=OPUS_BITRATE_MAX) |
| 1450 | { |
| 1451 | opus_int32 den=mode->Fs>>BITRES; |
| 1452 | vbr_rate=(st->bitrate*frame_size+(den>>1))/den; |
| 1453 | #ifdef CUSTOM_MODES |
| 1454 | if (st->signalling) |
| 1455 | vbr_rate -= 8<<BITRES; |
| 1456 | #endif |
| 1457 | effectiveBytes = vbr_rate>>(3+BITRES); |
| 1458 | } else { |
| 1459 | opus_int32 tmp; |
| 1460 | vbr_rate = 0; |
| 1461 | tmp = st->bitrate*frame_size; |
| 1462 | if (tell>1) |
| 1463 | tmp += tell; |
| 1464 | if (st->bitrate!=OPUS_BITRATE_MAX) |
| 1465 | nbCompressedBytes = IMAX(2, IMIN(nbCompressedBytes, |
| 1466 | (tmp+4*mode->Fs)/(8*mode->Fs)-!!st->signalling)); |
| 1467 | effectiveBytes = nbCompressedBytes; |
| 1468 | } |
| 1469 | if (st->bitrate != OPUS_BITRATE_MAX) |
| 1470 | equiv_rate = st->bitrate - (40*C+20)*((400>>LM) - 50); |
| 1471 | |
| 1472 | if (enc==NULL) |
| 1473 | { |
| 1474 | ec_enc_init(&_enc, compressed, nbCompressedBytes); |
| 1475 | enc = &_enc; |
| 1476 | } |
| 1477 | |
| 1478 | if (vbr_rate>0) |
| 1479 | { |
| 1480 | /* Computes the max bit-rate allowed in VBR mode to avoid violating the |
| 1481 | target rate and buffering. |
| 1482 | We must do this up front so that bust-prevention logic triggers |
| 1483 | correctly if we don't have enough bits. */ |
| 1484 | if (st->constrained_vbr) |
| 1485 | { |
| 1486 | opus_int32 vbr_bound; |
| 1487 | opus_int32 max_allowed; |
| 1488 | /* We could use any multiple of vbr_rate as bound (depending on the |
| 1489 | delay). |
| 1490 | This is clamped to ensure we use at least two bytes if the encoder |
| 1491 | was entirely empty, but to allow 0 in hybrid mode. */ |
| 1492 | vbr_bound = vbr_rate; |
| 1493 | max_allowed = IMIN(IMAX(tell==1?2:0, |
| 1494 | (vbr_rate+vbr_bound-st->vbr_reservoir)>>(BITRES+3)), |
| 1495 | nbAvailableBytes); |
| 1496 | if(max_allowed < nbAvailableBytes) |
| 1497 | { |
| 1498 | nbCompressedBytes = nbFilledBytes+max_allowed; |
| 1499 | nbAvailableBytes = max_allowed; |
| 1500 | ec_enc_shrink(enc, nbCompressedBytes); |
| 1501 | } |
| 1502 | } |
| 1503 | } |
| 1504 | total_bits = nbCompressedBytes*8; |
| 1505 | |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1506 | effEnd = end; |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1507 | if (effEnd > mode->effEBands) |
| 1508 | effEnd = mode->effEBands; |
| 1509 | |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1510 | ALLOC(in, CC*(N+overlap), celt_sig); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1511 | |
| 1512 | sample_max=MAX32(st->overlap_max, celt_maxabs16(pcm, C*(N-overlap)/st->upsample)); |
| 1513 | st->overlap_max=celt_maxabs16(pcm+C*(N-overlap)/st->upsample, C*overlap/st->upsample); |
| 1514 | sample_max=MAX32(sample_max, st->overlap_max); |
| 1515 | #ifdef FIXED_POINT |
| 1516 | silence = (sample_max==0); |
| 1517 | #else |
| 1518 | silence = (sample_max <= (opus_val16)1/(1<<st->lsb_depth)); |
| 1519 | #endif |
| 1520 | #ifdef FUZZING |
| 1521 | if ((rand()&0x3F)==0) |
| 1522 | silence = 1; |
| 1523 | #endif |
| 1524 | if (tell==1) |
| 1525 | ec_enc_bit_logp(enc, silence, 15); |
| 1526 | else |
| 1527 | silence=0; |
| 1528 | if (silence) |
| 1529 | { |
| 1530 | /*In VBR mode there is no need to send more than the minimum. */ |
| 1531 | if (vbr_rate>0) |
| 1532 | { |
| 1533 | effectiveBytes=nbCompressedBytes=IMIN(nbCompressedBytes, nbFilledBytes+2); |
| 1534 | total_bits=nbCompressedBytes*8; |
| 1535 | nbAvailableBytes=2; |
| 1536 | ec_enc_shrink(enc, nbCompressedBytes); |
| 1537 | } |
| 1538 | /* Pretend we've filled all the remaining bits with zeros |
| 1539 | (that's what the initialiser did anyway) */ |
| 1540 | tell = nbCompressedBytes*8; |
| 1541 | enc->nbits_total+=tell-ec_tell(enc); |
| 1542 | } |
| 1543 | c=0; do { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1544 | int need_clip=0; |
| 1545 | #ifndef FIXED_POINT |
| 1546 | need_clip = st->clip && sample_max>65536.f; |
| 1547 | #endif |
| 1548 | celt_preemphasis(pcm+c, in+c*(N+overlap)+overlap, N, CC, st->upsample, |
| 1549 | mode->preemph, st->preemph_memE+c, need_clip); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1550 | } while (++c<CC); |
| 1551 | |
| 1552 | |
| 1553 | |
| 1554 | /* Find pitch period and gain */ |
| 1555 | { |
| 1556 | int enabled; |
| 1557 | int qg; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1558 | enabled = ((st->lfe&&nbAvailableBytes>3) || nbAvailableBytes>12*C) && start==0 && !silence && !st->disable_pf |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1559 | && st->complexity >= 5 && !(st->consec_transient && LM!=3 && st->variable_duration==OPUS_FRAMESIZE_VARIABLE); |
| 1560 | |
| 1561 | prefilter_tapset = st->tapset_decision; |
| 1562 | pf_on = run_prefilter(st, in, prefilter_mem, CC, N, prefilter_tapset, &pitch_index, &gain1, &qg, enabled, nbAvailableBytes); |
| 1563 | if ((gain1 > QCONST16(.4f,15) || st->prefilter_gain > QCONST16(.4f,15)) && (!st->analysis.valid || st->analysis.tonality > .3) |
| 1564 | && (pitch_index > 1.26*st->prefilter_period || pitch_index < .79*st->prefilter_period)) |
| 1565 | pitch_change = 1; |
| 1566 | if (pf_on==0) |
| 1567 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1568 | if(start==0 && tell+16<=total_bits) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1569 | ec_enc_bit_logp(enc, 0, 1); |
| 1570 | } else { |
| 1571 | /*This block is not gated by a total bits check only because |
| 1572 | of the nbAvailableBytes check above.*/ |
| 1573 | int octave; |
| 1574 | ec_enc_bit_logp(enc, 1, 1); |
| 1575 | pitch_index += 1; |
| 1576 | octave = EC_ILOG(pitch_index)-5; |
| 1577 | ec_enc_uint(enc, octave, 6); |
| 1578 | ec_enc_bits(enc, pitch_index-(16<<octave), 4+octave); |
| 1579 | pitch_index -= 1; |
| 1580 | ec_enc_bits(enc, qg, 3); |
| 1581 | ec_enc_icdf(enc, prefilter_tapset, tapset_icdf, 2); |
| 1582 | } |
| 1583 | } |
| 1584 | |
| 1585 | isTransient = 0; |
| 1586 | shortBlocks = 0; |
| 1587 | if (st->complexity >= 1 && !st->lfe) |
| 1588 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1589 | isTransient = transient_analysis(in, N+overlap, CC, |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1590 | &tf_estimate, &tf_chan); |
| 1591 | } |
| 1592 | if (LM>0 && ec_tell(enc)+3<=total_bits) |
| 1593 | { |
| 1594 | if (isTransient) |
| 1595 | shortBlocks = M; |
| 1596 | } else { |
| 1597 | isTransient = 0; |
| 1598 | transient_got_disabled=1; |
| 1599 | } |
| 1600 | |
| 1601 | ALLOC(freq, CC*N, celt_sig); /**< Interleaved signal MDCTs */ |
| 1602 | ALLOC(bandE,nbEBands*CC, celt_ener); |
| 1603 | ALLOC(bandLogE,nbEBands*CC, opus_val16); |
| 1604 | |
| 1605 | secondMdct = shortBlocks && st->complexity>=8; |
| 1606 | ALLOC(bandLogE2, C*nbEBands, opus_val16); |
| 1607 | if (secondMdct) |
| 1608 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1609 | compute_mdcts(mode, 0, in, freq, C, CC, LM, st->upsample, st->arch); |
| 1610 | compute_band_energies(mode, freq, bandE, effEnd, C, LM); |
| 1611 | amp2Log2(mode, effEnd, end, bandE, bandLogE2, C); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1612 | for (i=0;i<C*nbEBands;i++) |
| 1613 | bandLogE2[i] += HALF16(SHL16(LM, DB_SHIFT)); |
| 1614 | } |
| 1615 | |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1616 | compute_mdcts(mode, shortBlocks, in, freq, C, CC, LM, st->upsample, st->arch); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1617 | if (CC==2&&C==1) |
| 1618 | tf_chan = 0; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1619 | compute_band_energies(mode, freq, bandE, effEnd, C, LM); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1620 | |
| 1621 | if (st->lfe) |
| 1622 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1623 | for (i=2;i<end;i++) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1624 | { |
| 1625 | bandE[i] = IMIN(bandE[i], MULT16_32_Q15(QCONST16(1e-4f,15),bandE[0])); |
| 1626 | bandE[i] = MAX32(bandE[i], EPSILON); |
| 1627 | } |
| 1628 | } |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1629 | amp2Log2(mode, effEnd, end, bandE, bandLogE, C); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1630 | |
| 1631 | ALLOC(surround_dynalloc, C*nbEBands, opus_val16); |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1632 | OPUS_CLEAR(surround_dynalloc, end); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1633 | /* This computes how much masking takes place between surround channels */ |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1634 | if (start==0&&st->energy_mask&&!st->lfe) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1635 | { |
| 1636 | int mask_end; |
| 1637 | int midband; |
| 1638 | int count_dynalloc; |
| 1639 | opus_val32 mask_avg=0; |
| 1640 | opus_val32 diff=0; |
| 1641 | int count=0; |
| 1642 | mask_end = IMAX(2,st->lastCodedBands); |
| 1643 | for (c=0;c<C;c++) |
| 1644 | { |
| 1645 | for(i=0;i<mask_end;i++) |
| 1646 | { |
| 1647 | opus_val16 mask; |
| 1648 | mask = MAX16(MIN16(st->energy_mask[nbEBands*c+i], |
| 1649 | QCONST16(.25f, DB_SHIFT)), -QCONST16(2.0f, DB_SHIFT)); |
| 1650 | if (mask > 0) |
| 1651 | mask = HALF16(mask); |
| 1652 | mask_avg += MULT16_16(mask, eBands[i+1]-eBands[i]); |
| 1653 | count += eBands[i+1]-eBands[i]; |
| 1654 | diff += MULT16_16(mask, 1+2*i-mask_end); |
| 1655 | } |
| 1656 | } |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1657 | celt_assert(count>0); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1658 | mask_avg = DIV32_16(mask_avg,count); |
| 1659 | mask_avg += QCONST16(.2f, DB_SHIFT); |
| 1660 | diff = diff*6/(C*(mask_end-1)*(mask_end+1)*mask_end); |
| 1661 | /* Again, being conservative */ |
| 1662 | diff = HALF32(diff); |
| 1663 | diff = MAX32(MIN32(diff, QCONST32(.031f, DB_SHIFT)), -QCONST32(.031f, DB_SHIFT)); |
| 1664 | /* Find the band that's in the middle of the coded spectrum */ |
| 1665 | for (midband=0;eBands[midband+1] < eBands[mask_end]/2;midband++); |
| 1666 | count_dynalloc=0; |
| 1667 | for(i=0;i<mask_end;i++) |
| 1668 | { |
| 1669 | opus_val32 lin; |
| 1670 | opus_val16 unmask; |
| 1671 | lin = mask_avg + diff*(i-midband); |
| 1672 | if (C==2) |
| 1673 | unmask = MAX16(st->energy_mask[i], st->energy_mask[nbEBands+i]); |
| 1674 | else |
| 1675 | unmask = st->energy_mask[i]; |
| 1676 | unmask = MIN16(unmask, QCONST16(.0f, DB_SHIFT)); |
| 1677 | unmask -= lin; |
| 1678 | if (unmask > QCONST16(.25f, DB_SHIFT)) |
| 1679 | { |
| 1680 | surround_dynalloc[i] = unmask - QCONST16(.25f, DB_SHIFT); |
| 1681 | count_dynalloc++; |
| 1682 | } |
| 1683 | } |
| 1684 | if (count_dynalloc>=3) |
| 1685 | { |
| 1686 | /* If we need dynalloc in many bands, it's probably because our |
| 1687 | initial masking rate was too low. */ |
| 1688 | mask_avg += QCONST16(.25f, DB_SHIFT); |
| 1689 | if (mask_avg>0) |
| 1690 | { |
| 1691 | /* Something went really wrong in the original calculations, |
| 1692 | disabling masking. */ |
| 1693 | mask_avg = 0; |
| 1694 | diff = 0; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1695 | OPUS_CLEAR(surround_dynalloc, mask_end); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1696 | } else { |
| 1697 | for(i=0;i<mask_end;i++) |
| 1698 | surround_dynalloc[i] = MAX16(0, surround_dynalloc[i]-QCONST16(.25f, DB_SHIFT)); |
| 1699 | } |
| 1700 | } |
| 1701 | mask_avg += QCONST16(.2f, DB_SHIFT); |
| 1702 | /* Convert to 1/64th units used for the trim */ |
| 1703 | surround_trim = 64*diff; |
| 1704 | /*printf("%d %d ", mask_avg, surround_trim);*/ |
| 1705 | surround_masking = mask_avg; |
| 1706 | } |
| 1707 | /* Temporal VBR (but not for LFE) */ |
| 1708 | if (!st->lfe) |
| 1709 | { |
| 1710 | opus_val16 follow=-QCONST16(10.0f,DB_SHIFT); |
| 1711 | opus_val32 frame_avg=0; |
| 1712 | opus_val16 offset = shortBlocks?HALF16(SHL16(LM, DB_SHIFT)):0; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1713 | for(i=start;i<end;i++) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1714 | { |
| 1715 | follow = MAX16(follow-QCONST16(1.f, DB_SHIFT), bandLogE[i]-offset); |
| 1716 | if (C==2) |
| 1717 | follow = MAX16(follow, bandLogE[i+nbEBands]-offset); |
| 1718 | frame_avg += follow; |
| 1719 | } |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1720 | frame_avg /= (end-start); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1721 | temporal_vbr = SUB16(frame_avg,st->spec_avg); |
| 1722 | temporal_vbr = MIN16(QCONST16(3.f, DB_SHIFT), MAX16(-QCONST16(1.5f, DB_SHIFT), temporal_vbr)); |
| 1723 | st->spec_avg += MULT16_16_Q15(QCONST16(.02f, 15), temporal_vbr); |
| 1724 | } |
| 1725 | /*for (i=0;i<21;i++) |
| 1726 | printf("%f ", bandLogE[i]); |
| 1727 | printf("\n");*/ |
| 1728 | |
| 1729 | if (!secondMdct) |
| 1730 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1731 | OPUS_COPY(bandLogE2, bandLogE, C*nbEBands); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1732 | } |
| 1733 | |
| 1734 | /* Last chance to catch any transient we might have missed in the |
| 1735 | time-domain analysis */ |
| 1736 | if (LM>0 && ec_tell(enc)+3<=total_bits && !isTransient && st->complexity>=5 && !st->lfe) |
| 1737 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1738 | if (patch_transient_decision(bandLogE, oldBandE, nbEBands, start, end, C)) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1739 | { |
| 1740 | isTransient = 1; |
| 1741 | shortBlocks = M; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1742 | compute_mdcts(mode, shortBlocks, in, freq, C, CC, LM, st->upsample, st->arch); |
| 1743 | compute_band_energies(mode, freq, bandE, effEnd, C, LM); |
| 1744 | amp2Log2(mode, effEnd, end, bandE, bandLogE, C); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1745 | /* Compensate for the scaling of short vs long mdcts */ |
| 1746 | for (i=0;i<C*nbEBands;i++) |
| 1747 | bandLogE2[i] += HALF16(SHL16(LM, DB_SHIFT)); |
| 1748 | tf_estimate = QCONST16(.2f,14); |
| 1749 | } |
| 1750 | } |
| 1751 | |
| 1752 | if (LM>0 && ec_tell(enc)+3<=total_bits) |
| 1753 | ec_enc_bit_logp(enc, isTransient, 3); |
| 1754 | |
| 1755 | ALLOC(X, C*N, celt_norm); /**< Interleaved normalised MDCTs */ |
| 1756 | |
| 1757 | /* Band normalisation */ |
| 1758 | normalise_bands(mode, freq, X, bandE, effEnd, C, M); |
| 1759 | |
| 1760 | ALLOC(tf_res, nbEBands, int); |
| 1761 | /* Disable variable tf resolution for hybrid and at very low bitrate */ |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1762 | if (effectiveBytes>=15*C && start==0 && st->complexity>=2 && !st->lfe) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1763 | { |
| 1764 | int lambda; |
| 1765 | if (effectiveBytes<40) |
| 1766 | lambda = 12; |
| 1767 | else if (effectiveBytes<60) |
| 1768 | lambda = 6; |
| 1769 | else if (effectiveBytes<100) |
| 1770 | lambda = 4; |
| 1771 | else |
| 1772 | lambda = 3; |
| 1773 | lambda*=2; |
| 1774 | tf_select = tf_analysis(mode, effEnd, isTransient, tf_res, lambda, X, N, LM, &tf_sum, tf_estimate, tf_chan); |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1775 | for (i=effEnd;i<end;i++) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1776 | tf_res[i] = tf_res[effEnd-1]; |
| 1777 | } else { |
| 1778 | tf_sum = 0; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1779 | for (i=0;i<end;i++) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1780 | tf_res[i] = isTransient; |
| 1781 | tf_select=0; |
| 1782 | } |
| 1783 | |
| 1784 | ALLOC(error, C*nbEBands, opus_val16); |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1785 | quant_coarse_energy(mode, start, end, effEnd, bandLogE, |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1786 | oldBandE, total_bits, error, enc, |
| 1787 | C, LM, nbAvailableBytes, st->force_intra, |
| 1788 | &st->delayedIntra, st->complexity >= 4, st->loss_rate, st->lfe); |
| 1789 | |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1790 | tf_encode(start, end, isTransient, tf_res, LM, tf_select, enc); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1791 | |
| 1792 | if (ec_tell(enc)+4<=total_bits) |
| 1793 | { |
| 1794 | if (st->lfe) |
| 1795 | { |
| 1796 | st->tapset_decision = 0; |
| 1797 | st->spread_decision = SPREAD_NORMAL; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1798 | } else if (shortBlocks || st->complexity < 3 || nbAvailableBytes < 10*C || start != 0) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1799 | { |
| 1800 | if (st->complexity == 0) |
| 1801 | st->spread_decision = SPREAD_NONE; |
| 1802 | else |
| 1803 | st->spread_decision = SPREAD_NORMAL; |
| 1804 | } else { |
| 1805 | /* Disable new spreading+tapset estimator until we can show it works |
| 1806 | better than the old one. So far it seems like spreading_decision() |
| 1807 | works best. */ |
| 1808 | #if 0 |
| 1809 | if (st->analysis.valid) |
| 1810 | { |
| 1811 | static const opus_val16 spread_thresholds[3] = {-QCONST16(.6f, 15), -QCONST16(.2f, 15), -QCONST16(.07f, 15)}; |
| 1812 | static const opus_val16 spread_histeresis[3] = {QCONST16(.15f, 15), QCONST16(.07f, 15), QCONST16(.02f, 15)}; |
| 1813 | static const opus_val16 tapset_thresholds[2] = {QCONST16(.0f, 15), QCONST16(.15f, 15)}; |
| 1814 | static const opus_val16 tapset_histeresis[2] = {QCONST16(.1f, 15), QCONST16(.05f, 15)}; |
| 1815 | st->spread_decision = hysteresis_decision(-st->analysis.tonality, spread_thresholds, spread_histeresis, 3, st->spread_decision); |
| 1816 | st->tapset_decision = hysteresis_decision(st->analysis.tonality_slope, tapset_thresholds, tapset_histeresis, 2, st->tapset_decision); |
| 1817 | } else |
| 1818 | #endif |
| 1819 | { |
| 1820 | st->spread_decision = spreading_decision(mode, X, |
| 1821 | &st->tonal_average, st->spread_decision, &st->hf_average, |
| 1822 | &st->tapset_decision, pf_on&&!shortBlocks, effEnd, C, M); |
| 1823 | } |
| 1824 | /*printf("%d %d\n", st->tapset_decision, st->spread_decision);*/ |
| 1825 | /*printf("%f %d %f %d\n\n", st->analysis.tonality, st->spread_decision, st->analysis.tonality_slope, st->tapset_decision);*/ |
| 1826 | } |
| 1827 | ec_enc_icdf(enc, st->spread_decision, spread_icdf, 5); |
| 1828 | } |
| 1829 | |
| 1830 | ALLOC(offsets, nbEBands, int); |
| 1831 | |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1832 | maxDepth = dynalloc_analysis(bandLogE, bandLogE2, nbEBands, start, end, C, offsets, |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1833 | st->lsb_depth, mode->logN, isTransient, st->vbr, st->constrained_vbr, |
| 1834 | eBands, LM, effectiveBytes, &tot_boost, st->lfe, surround_dynalloc); |
| 1835 | /* For LFE, everything interesting is in the first band */ |
| 1836 | if (st->lfe) |
| 1837 | offsets[0] = IMIN(8, effectiveBytes/3); |
| 1838 | ALLOC(cap, nbEBands, int); |
| 1839 | init_caps(mode,cap,LM,C); |
| 1840 | |
| 1841 | dynalloc_logp = 6; |
| 1842 | total_bits<<=BITRES; |
| 1843 | total_boost = 0; |
| 1844 | tell = ec_tell_frac(enc); |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1845 | for (i=start;i<end;i++) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1846 | { |
| 1847 | int width, quanta; |
| 1848 | int dynalloc_loop_logp; |
| 1849 | int boost; |
| 1850 | int j; |
| 1851 | width = C*(eBands[i+1]-eBands[i])<<LM; |
| 1852 | /* quanta is 6 bits, but no more than 1 bit/sample |
| 1853 | and no less than 1/8 bit/sample */ |
| 1854 | quanta = IMIN(width<<BITRES, IMAX(6<<BITRES, width)); |
| 1855 | dynalloc_loop_logp = dynalloc_logp; |
| 1856 | boost = 0; |
| 1857 | for (j = 0; tell+(dynalloc_loop_logp<<BITRES) < total_bits-total_boost |
| 1858 | && boost < cap[i]; j++) |
| 1859 | { |
| 1860 | int flag; |
| 1861 | flag = j<offsets[i]; |
| 1862 | ec_enc_bit_logp(enc, flag, dynalloc_loop_logp); |
| 1863 | tell = ec_tell_frac(enc); |
| 1864 | if (!flag) |
| 1865 | break; |
| 1866 | boost += quanta; |
| 1867 | total_boost += quanta; |
| 1868 | dynalloc_loop_logp = 1; |
| 1869 | } |
| 1870 | /* Making dynalloc more likely */ |
| 1871 | if (j) |
| 1872 | dynalloc_logp = IMAX(2, dynalloc_logp-1); |
| 1873 | offsets[i] = boost; |
| 1874 | } |
| 1875 | |
| 1876 | if (C==2) |
| 1877 | { |
| 1878 | static const opus_val16 intensity_thresholds[21]= |
| 1879 | /* 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 off*/ |
| 1880 | { 1, 2, 3, 4, 5, 6, 7, 8,16,24,36,44,50,56,62,67,72,79,88,106,134}; |
| 1881 | static const opus_val16 intensity_histeresis[21]= |
| 1882 | { 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 4, 5, 6, 8, 8}; |
| 1883 | |
| 1884 | /* Always use MS for 2.5 ms frames until we can do a better analysis */ |
| 1885 | if (LM!=0) |
| 1886 | dual_stereo = stereo_analysis(mode, X, LM, N); |
| 1887 | |
| 1888 | st->intensity = hysteresis_decision((opus_val16)(equiv_rate/1000), |
| 1889 | intensity_thresholds, intensity_histeresis, 21, st->intensity); |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1890 | st->intensity = IMIN(end,IMAX(start, st->intensity)); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1891 | } |
| 1892 | |
| 1893 | alloc_trim = 5; |
| 1894 | if (tell+(6<<BITRES) <= total_bits - total_boost) |
| 1895 | { |
| 1896 | if (st->lfe) |
| 1897 | alloc_trim = 5; |
| 1898 | else |
| 1899 | alloc_trim = alloc_trim_analysis(mode, X, bandLogE, |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 1900 | end, LM, C, N, &st->analysis, &st->stereo_saving, tf_estimate, |
| 1901 | st->intensity, surround_trim, st->arch); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1902 | ec_enc_icdf(enc, alloc_trim, trim_icdf, 7); |
| 1903 | tell = ec_tell_frac(enc); |
| 1904 | } |
| 1905 | |
| 1906 | /* Variable bitrate */ |
| 1907 | if (vbr_rate>0) |
| 1908 | { |
| 1909 | opus_val16 alpha; |
| 1910 | opus_int32 delta; |
| 1911 | /* The target rate in 8th bits per frame */ |
| 1912 | opus_int32 target, base_target; |
| 1913 | opus_int32 min_allowed; |
| 1914 | int lm_diff = mode->maxLM - LM; |
| 1915 | |
| 1916 | /* Don't attempt to use more than 510 kb/s, even for frames smaller than 20 ms. |
| 1917 | The CELT allocator will just not be able to use more than that anyway. */ |
| 1918 | nbCompressedBytes = IMIN(nbCompressedBytes,1275>>(3-LM)); |
| 1919 | base_target = vbr_rate - ((40*C+20)<<BITRES); |
| 1920 | |
| 1921 | if (st->constrained_vbr) |
| 1922 | base_target += (st->vbr_offset>>lm_diff); |
| 1923 | |
| 1924 | target = compute_vbr(mode, &st->analysis, base_target, LM, equiv_rate, |
| 1925 | st->lastCodedBands, C, st->intensity, st->constrained_vbr, |
| 1926 | st->stereo_saving, tot_boost, tf_estimate, pitch_change, maxDepth, |
| 1927 | st->variable_duration, st->lfe, st->energy_mask!=NULL, surround_masking, |
| 1928 | temporal_vbr); |
| 1929 | |
| 1930 | /* The current offset is removed from the target and the space used |
| 1931 | so far is added*/ |
| 1932 | target=target+tell; |
| 1933 | /* In VBR mode the frame size must not be reduced so much that it would |
| 1934 | result in the encoder running out of bits. |
| 1935 | The margin of 2 bytes ensures that none of the bust-prevention logic |
| 1936 | in the decoder will have triggered so far. */ |
| 1937 | min_allowed = ((tell+total_boost+(1<<(BITRES+3))-1)>>(BITRES+3)) + 2 - nbFilledBytes; |
| 1938 | |
| 1939 | nbAvailableBytes = (target+(1<<(BITRES+2)))>>(BITRES+3); |
| 1940 | nbAvailableBytes = IMAX(min_allowed,nbAvailableBytes); |
| 1941 | nbAvailableBytes = IMIN(nbCompressedBytes,nbAvailableBytes+nbFilledBytes) - nbFilledBytes; |
| 1942 | |
| 1943 | /* By how much did we "miss" the target on that frame */ |
| 1944 | delta = target - vbr_rate; |
| 1945 | |
| 1946 | target=nbAvailableBytes<<(BITRES+3); |
| 1947 | |
| 1948 | /*If the frame is silent we don't adjust our drift, otherwise |
| 1949 | the encoder will shoot to very high rates after hitting a |
| 1950 | span of silence, but we do allow the bitres to refill. |
| 1951 | This means that we'll undershoot our target in CVBR/VBR modes |
| 1952 | on files with lots of silence. */ |
| 1953 | if(silence) |
| 1954 | { |
| 1955 | nbAvailableBytes = 2; |
| 1956 | target = 2*8<<BITRES; |
| 1957 | delta = 0; |
| 1958 | } |
| 1959 | |
| 1960 | if (st->vbr_count < 970) |
| 1961 | { |
| 1962 | st->vbr_count++; |
| 1963 | alpha = celt_rcp(SHL32(EXTEND32(st->vbr_count+20),16)); |
| 1964 | } else |
| 1965 | alpha = QCONST16(.001f,15); |
| 1966 | /* How many bits have we used in excess of what we're allowed */ |
| 1967 | if (st->constrained_vbr) |
| 1968 | st->vbr_reservoir += target - vbr_rate; |
| 1969 | /*printf ("%d\n", st->vbr_reservoir);*/ |
| 1970 | |
| 1971 | /* Compute the offset we need to apply in order to reach the target */ |
| 1972 | if (st->constrained_vbr) |
| 1973 | { |
| 1974 | st->vbr_drift += (opus_int32)MULT16_32_Q15(alpha,(delta*(1<<lm_diff))-st->vbr_offset-st->vbr_drift); |
| 1975 | st->vbr_offset = -st->vbr_drift; |
| 1976 | } |
| 1977 | /*printf ("%d\n", st->vbr_drift);*/ |
| 1978 | |
| 1979 | if (st->constrained_vbr && st->vbr_reservoir < 0) |
| 1980 | { |
| 1981 | /* We're under the min value -- increase rate */ |
| 1982 | int adjust = (-st->vbr_reservoir)/(8<<BITRES); |
| 1983 | /* Unless we're just coding silence */ |
| 1984 | nbAvailableBytes += silence?0:adjust; |
| 1985 | st->vbr_reservoir = 0; |
| 1986 | /*printf ("+%d\n", adjust);*/ |
| 1987 | } |
| 1988 | nbCompressedBytes = IMIN(nbCompressedBytes,nbAvailableBytes+nbFilledBytes); |
| 1989 | /*printf("%d\n", nbCompressedBytes*50*8);*/ |
| 1990 | /* This moves the raw bits to take into account the new compressed size */ |
| 1991 | ec_enc_shrink(enc, nbCompressedBytes); |
| 1992 | } |
| 1993 | |
| 1994 | /* Bit allocation */ |
| 1995 | ALLOC(fine_quant, nbEBands, int); |
| 1996 | ALLOC(pulses, nbEBands, int); |
| 1997 | ALLOC(fine_priority, nbEBands, int); |
| 1998 | |
| 1999 | /* bits = packet size - where we are - safety*/ |
| 2000 | bits = (((opus_int32)nbCompressedBytes*8)<<BITRES) - ec_tell_frac(enc) - 1; |
| 2001 | anti_collapse_rsv = isTransient&&LM>=2&&bits>=((LM+2)<<BITRES) ? (1<<BITRES) : 0; |
| 2002 | bits -= anti_collapse_rsv; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 2003 | signalBandwidth = end-1; |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 2004 | #ifndef DISABLE_FLOAT_API |
| 2005 | if (st->analysis.valid) |
| 2006 | { |
| 2007 | int min_bandwidth; |
| 2008 | if (equiv_rate < (opus_int32)32000*C) |
| 2009 | min_bandwidth = 13; |
| 2010 | else if (equiv_rate < (opus_int32)48000*C) |
| 2011 | min_bandwidth = 16; |
| 2012 | else if (equiv_rate < (opus_int32)60000*C) |
| 2013 | min_bandwidth = 18; |
| 2014 | else if (equiv_rate < (opus_int32)80000*C) |
| 2015 | min_bandwidth = 19; |
| 2016 | else |
| 2017 | min_bandwidth = 20; |
| 2018 | signalBandwidth = IMAX(st->analysis.bandwidth, min_bandwidth); |
| 2019 | } |
| 2020 | #endif |
| 2021 | if (st->lfe) |
| 2022 | signalBandwidth = 1; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 2023 | codedBands = compute_allocation(mode, start, end, offsets, cap, |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 2024 | alloc_trim, &st->intensity, &dual_stereo, bits, &balance, pulses, |
| 2025 | fine_quant, fine_priority, C, LM, enc, 1, st->lastCodedBands, signalBandwidth); |
| 2026 | if (st->lastCodedBands) |
| 2027 | st->lastCodedBands = IMIN(st->lastCodedBands+1,IMAX(st->lastCodedBands-1,codedBands)); |
| 2028 | else |
| 2029 | st->lastCodedBands = codedBands; |
| 2030 | |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 2031 | quant_fine_energy(mode, start, end, oldBandE, error, fine_quant, enc, C); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 2032 | |
| 2033 | /* Residual quantisation */ |
| 2034 | ALLOC(collapse_masks, C*nbEBands, unsigned char); |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 2035 | quant_all_bands(1, mode, start, end, X, C==2 ? X+N : NULL, collapse_masks, |
| 2036 | bandE, pulses, shortBlocks, st->spread_decision, |
| 2037 | dual_stereo, st->intensity, tf_res, nbCompressedBytes*(8<<BITRES)-anti_collapse_rsv, |
| 2038 | balance, enc, LM, codedBands, &st->rng, st->arch); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 2039 | |
| 2040 | if (anti_collapse_rsv > 0) |
| 2041 | { |
| 2042 | anti_collapse_on = st->consec_transient<2; |
| 2043 | #ifdef FUZZING |
| 2044 | anti_collapse_on = rand()&0x1; |
| 2045 | #endif |
| 2046 | ec_enc_bits(enc, anti_collapse_on, 1); |
| 2047 | } |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 2048 | quant_energy_finalise(mode, start, end, oldBandE, error, fine_quant, fine_priority, nbCompressedBytes*8-ec_tell(enc), enc, C); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 2049 | |
| 2050 | if (silence) |
| 2051 | { |
| 2052 | for (i=0;i<C*nbEBands;i++) |
| 2053 | oldBandE[i] = -QCONST16(28.f,DB_SHIFT); |
| 2054 | } |
| 2055 | |
| 2056 | #ifdef RESYNTH |
| 2057 | /* Re-synthesis of the coded audio if required */ |
| 2058 | { |
| 2059 | celt_sig *out_mem[2]; |
| 2060 | |
| 2061 | if (anti_collapse_on) |
| 2062 | { |
| 2063 | anti_collapse(mode, X, collapse_masks, LM, C, N, |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 2064 | start, end, oldBandE, oldLogE, oldLogE2, pulses, st->rng); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 2065 | } |
| 2066 | |
| 2067 | c=0; do { |
| 2068 | OPUS_MOVE(st->syn_mem[c], st->syn_mem[c]+N, 2*MAX_PERIOD-N+overlap/2); |
| 2069 | } while (++c<CC); |
| 2070 | |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 2071 | c=0; do { |
| 2072 | out_mem[c] = st->syn_mem[c]+2*MAX_PERIOD-N; |
| 2073 | } while (++c<CC); |
| 2074 | |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 2075 | celt_synthesis(mode, X, out_mem, oldBandE, start, effEnd, |
| 2076 | C, CC, isTransient, LM, st->upsample, silence, st->arch); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 2077 | |
| 2078 | c=0; do { |
| 2079 | st->prefilter_period=IMAX(st->prefilter_period, COMBFILTER_MINPERIOD); |
| 2080 | st->prefilter_period_old=IMAX(st->prefilter_period_old, COMBFILTER_MINPERIOD); |
| 2081 | comb_filter(out_mem[c], out_mem[c], st->prefilter_period_old, st->prefilter_period, mode->shortMdctSize, |
| 2082 | st->prefilter_gain_old, st->prefilter_gain, st->prefilter_tapset_old, st->prefilter_tapset, |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 2083 | mode->window, overlap); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 2084 | if (LM!=0) |
| 2085 | comb_filter(out_mem[c]+mode->shortMdctSize, out_mem[c]+mode->shortMdctSize, st->prefilter_period, pitch_index, N-mode->shortMdctSize, |
| 2086 | st->prefilter_gain, gain1, st->prefilter_tapset, prefilter_tapset, |
| 2087 | mode->window, overlap); |
| 2088 | } while (++c<CC); |
| 2089 | |
| 2090 | /* We reuse freq[] as scratch space for the de-emphasis */ |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 2091 | deemphasis(out_mem, (opus_val16*)pcm, N, CC, st->upsample, mode->preemph, st->preemph_memD); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 2092 | st->prefilter_period_old = st->prefilter_period; |
| 2093 | st->prefilter_gain_old = st->prefilter_gain; |
| 2094 | st->prefilter_tapset_old = st->prefilter_tapset; |
| 2095 | } |
| 2096 | #endif |
| 2097 | |
| 2098 | st->prefilter_period = pitch_index; |
| 2099 | st->prefilter_gain = gain1; |
| 2100 | st->prefilter_tapset = prefilter_tapset; |
| 2101 | #ifdef RESYNTH |
| 2102 | if (LM!=0) |
| 2103 | { |
| 2104 | st->prefilter_period_old = st->prefilter_period; |
| 2105 | st->prefilter_gain_old = st->prefilter_gain; |
| 2106 | st->prefilter_tapset_old = st->prefilter_tapset; |
| 2107 | } |
| 2108 | #endif |
| 2109 | |
| 2110 | if (CC==2&&C==1) { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 2111 | OPUS_COPY(&oldBandE[nbEBands], oldBandE, nbEBands); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 2112 | } |
| 2113 | |
| 2114 | if (!isTransient) |
| 2115 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 2116 | OPUS_COPY(oldLogE2, oldLogE, CC*nbEBands); |
| 2117 | OPUS_COPY(oldLogE, oldBandE, CC*nbEBands); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 2118 | } else { |
| 2119 | for (i=0;i<CC*nbEBands;i++) |
| 2120 | oldLogE[i] = MIN16(oldLogE[i], oldBandE[i]); |
| 2121 | } |
| 2122 | /* In case start or end were to change */ |
| 2123 | c=0; do |
| 2124 | { |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 2125 | for (i=0;i<start;i++) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 2126 | { |
| 2127 | oldBandE[c*nbEBands+i]=0; |
| 2128 | oldLogE[c*nbEBands+i]=oldLogE2[c*nbEBands+i]=-QCONST16(28.f,DB_SHIFT); |
| 2129 | } |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 2130 | for (i=end;i<nbEBands;i++) |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 2131 | { |
| 2132 | oldBandE[c*nbEBands+i]=0; |
| 2133 | oldLogE[c*nbEBands+i]=oldLogE2[c*nbEBands+i]=-QCONST16(28.f,DB_SHIFT); |
| 2134 | } |
| 2135 | } while (++c<CC); |
| 2136 | |
| 2137 | if (isTransient || transient_got_disabled) |
| 2138 | st->consec_transient++; |
| 2139 | else |
| 2140 | st->consec_transient=0; |
| 2141 | st->rng = enc->rng; |
| 2142 | |
| 2143 | /* If there's any room left (can only happen for very high rates), |
| 2144 | it's already filled with zeros */ |
| 2145 | ec_enc_done(enc); |
| 2146 | |
| 2147 | #ifdef CUSTOM_MODES |
| 2148 | if (st->signalling) |
| 2149 | nbCompressedBytes++; |
| 2150 | #endif |
| 2151 | |
| 2152 | RESTORE_STACK; |
| 2153 | if (ec_get_error(enc)) |
| 2154 | return OPUS_INTERNAL_ERROR; |
| 2155 | else |
| 2156 | return nbCompressedBytes; |
| 2157 | } |
| 2158 | |
| 2159 | |
| 2160 | #ifdef CUSTOM_MODES |
| 2161 | |
| 2162 | #ifdef FIXED_POINT |
| 2163 | int opus_custom_encode(CELTEncoder * OPUS_RESTRICT st, const opus_int16 * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes) |
| 2164 | { |
| 2165 | return celt_encode_with_ec(st, pcm, frame_size, compressed, nbCompressedBytes, NULL); |
| 2166 | } |
| 2167 | |
| 2168 | #ifndef DISABLE_FLOAT_API |
| 2169 | int opus_custom_encode_float(CELTEncoder * OPUS_RESTRICT st, const float * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes) |
| 2170 | { |
| 2171 | int j, ret, C, N; |
| 2172 | VARDECL(opus_int16, in); |
| 2173 | ALLOC_STACK; |
| 2174 | |
| 2175 | if (pcm==NULL) |
| 2176 | return OPUS_BAD_ARG; |
| 2177 | |
| 2178 | C = st->channels; |
| 2179 | N = frame_size; |
| 2180 | ALLOC(in, C*N, opus_int16); |
| 2181 | |
| 2182 | for (j=0;j<C*N;j++) |
| 2183 | in[j] = FLOAT2INT16(pcm[j]); |
| 2184 | |
| 2185 | ret=celt_encode_with_ec(st,in,frame_size,compressed,nbCompressedBytes, NULL); |
| 2186 | #ifdef RESYNTH |
| 2187 | for (j=0;j<C*N;j++) |
| 2188 | ((float*)pcm)[j]=in[j]*(1.f/32768.f); |
| 2189 | #endif |
| 2190 | RESTORE_STACK; |
| 2191 | return ret; |
| 2192 | } |
| 2193 | #endif /* DISABLE_FLOAT_API */ |
| 2194 | #else |
| 2195 | |
| 2196 | int opus_custom_encode(CELTEncoder * OPUS_RESTRICT st, const opus_int16 * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes) |
| 2197 | { |
| 2198 | int j, ret, C, N; |
| 2199 | VARDECL(celt_sig, in); |
| 2200 | ALLOC_STACK; |
| 2201 | |
| 2202 | if (pcm==NULL) |
| 2203 | return OPUS_BAD_ARG; |
| 2204 | |
| 2205 | C=st->channels; |
| 2206 | N=frame_size; |
| 2207 | ALLOC(in, C*N, celt_sig); |
| 2208 | for (j=0;j<C*N;j++) { |
| 2209 | in[j] = SCALEOUT(pcm[j]); |
| 2210 | } |
| 2211 | |
| 2212 | ret = celt_encode_with_ec(st,in,frame_size,compressed,nbCompressedBytes, NULL); |
| 2213 | #ifdef RESYNTH |
| 2214 | for (j=0;j<C*N;j++) |
| 2215 | ((opus_int16*)pcm)[j] = FLOAT2INT16(in[j]); |
| 2216 | #endif |
| 2217 | RESTORE_STACK; |
| 2218 | return ret; |
| 2219 | } |
| 2220 | |
| 2221 | int opus_custom_encode_float(CELTEncoder * OPUS_RESTRICT st, const float * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes) |
| 2222 | { |
| 2223 | return celt_encode_with_ec(st, pcm, frame_size, compressed, nbCompressedBytes, NULL); |
| 2224 | } |
| 2225 | |
| 2226 | #endif |
| 2227 | |
| 2228 | #endif /* CUSTOM_MODES */ |
| 2229 | |
| 2230 | int opus_custom_encoder_ctl(CELTEncoder * OPUS_RESTRICT st, int request, ...) |
| 2231 | { |
| 2232 | va_list ap; |
| 2233 | |
| 2234 | va_start(ap, request); |
| 2235 | switch (request) |
| 2236 | { |
| 2237 | case OPUS_SET_COMPLEXITY_REQUEST: |
| 2238 | { |
| 2239 | int value = va_arg(ap, opus_int32); |
| 2240 | if (value<0 || value>10) |
| 2241 | goto bad_arg; |
| 2242 | st->complexity = value; |
| 2243 | } |
| 2244 | break; |
| 2245 | case CELT_SET_START_BAND_REQUEST: |
| 2246 | { |
| 2247 | opus_int32 value = va_arg(ap, opus_int32); |
| 2248 | if (value<0 || value>=st->mode->nbEBands) |
| 2249 | goto bad_arg; |
| 2250 | st->start = value; |
| 2251 | } |
| 2252 | break; |
| 2253 | case CELT_SET_END_BAND_REQUEST: |
| 2254 | { |
| 2255 | opus_int32 value = va_arg(ap, opus_int32); |
| 2256 | if (value<1 || value>st->mode->nbEBands) |
| 2257 | goto bad_arg; |
| 2258 | st->end = value; |
| 2259 | } |
| 2260 | break; |
| 2261 | case CELT_SET_PREDICTION_REQUEST: |
| 2262 | { |
| 2263 | int value = va_arg(ap, opus_int32); |
| 2264 | if (value<0 || value>2) |
| 2265 | goto bad_arg; |
| 2266 | st->disable_pf = value<=1; |
| 2267 | st->force_intra = value==0; |
| 2268 | } |
| 2269 | break; |
| 2270 | case OPUS_SET_PACKET_LOSS_PERC_REQUEST: |
| 2271 | { |
| 2272 | int value = va_arg(ap, opus_int32); |
| 2273 | if (value<0 || value>100) |
| 2274 | goto bad_arg; |
| 2275 | st->loss_rate = value; |
| 2276 | } |
| 2277 | break; |
| 2278 | case OPUS_SET_VBR_CONSTRAINT_REQUEST: |
| 2279 | { |
| 2280 | opus_int32 value = va_arg(ap, opus_int32); |
| 2281 | st->constrained_vbr = value; |
| 2282 | } |
| 2283 | break; |
| 2284 | case OPUS_SET_VBR_REQUEST: |
| 2285 | { |
| 2286 | opus_int32 value = va_arg(ap, opus_int32); |
| 2287 | st->vbr = value; |
| 2288 | } |
| 2289 | break; |
| 2290 | case OPUS_SET_BITRATE_REQUEST: |
| 2291 | { |
| 2292 | opus_int32 value = va_arg(ap, opus_int32); |
| 2293 | if (value<=500 && value!=OPUS_BITRATE_MAX) |
| 2294 | goto bad_arg; |
| 2295 | value = IMIN(value, 260000*st->channels); |
| 2296 | st->bitrate = value; |
| 2297 | } |
| 2298 | break; |
| 2299 | case CELT_SET_CHANNELS_REQUEST: |
| 2300 | { |
| 2301 | opus_int32 value = va_arg(ap, opus_int32); |
| 2302 | if (value<1 || value>2) |
| 2303 | goto bad_arg; |
| 2304 | st->stream_channels = value; |
| 2305 | } |
| 2306 | break; |
| 2307 | case OPUS_SET_LSB_DEPTH_REQUEST: |
| 2308 | { |
| 2309 | opus_int32 value = va_arg(ap, opus_int32); |
| 2310 | if (value<8 || value>24) |
| 2311 | goto bad_arg; |
| 2312 | st->lsb_depth=value; |
| 2313 | } |
| 2314 | break; |
| 2315 | case OPUS_GET_LSB_DEPTH_REQUEST: |
| 2316 | { |
| 2317 | opus_int32 *value = va_arg(ap, opus_int32*); |
| 2318 | *value=st->lsb_depth; |
| 2319 | } |
| 2320 | break; |
| 2321 | case OPUS_SET_EXPERT_FRAME_DURATION_REQUEST: |
| 2322 | { |
| 2323 | opus_int32 value = va_arg(ap, opus_int32); |
| 2324 | st->variable_duration = value; |
| 2325 | } |
| 2326 | break; |
| 2327 | case OPUS_RESET_STATE: |
| 2328 | { |
| 2329 | int i; |
| 2330 | opus_val16 *oldBandE, *oldLogE, *oldLogE2; |
flim | c91ee5b | 2016-01-26 14:33:44 +0100 | [diff] [blame] | 2331 | oldBandE = (opus_val16*)(st->in_mem+st->channels*(st->mode->overlap+COMBFILTER_MAXPERIOD)); |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 2332 | oldLogE = oldBandE + st->channels*st->mode->nbEBands; |
| 2333 | oldLogE2 = oldLogE + st->channels*st->mode->nbEBands; |
| 2334 | OPUS_CLEAR((char*)&st->ENCODER_RESET_START, |
| 2335 | opus_custom_encoder_get_size(st->mode, st->channels)- |
| 2336 | ((char*)&st->ENCODER_RESET_START - (char*)st)); |
| 2337 | for (i=0;i<st->channels*st->mode->nbEBands;i++) |
| 2338 | oldLogE[i]=oldLogE2[i]=-QCONST16(28.f,DB_SHIFT); |
| 2339 | st->vbr_offset = 0; |
| 2340 | st->delayedIntra = 1; |
| 2341 | st->spread_decision = SPREAD_NORMAL; |
| 2342 | st->tonal_average = 256; |
| 2343 | st->hf_average = 0; |
| 2344 | st->tapset_decision = 0; |
| 2345 | } |
| 2346 | break; |
| 2347 | #ifdef CUSTOM_MODES |
| 2348 | case CELT_SET_INPUT_CLIPPING_REQUEST: |
| 2349 | { |
| 2350 | opus_int32 value = va_arg(ap, opus_int32); |
| 2351 | st->clip = value; |
| 2352 | } |
| 2353 | break; |
| 2354 | #endif |
| 2355 | case CELT_SET_SIGNALLING_REQUEST: |
| 2356 | { |
| 2357 | opus_int32 value = va_arg(ap, opus_int32); |
| 2358 | st->signalling = value; |
| 2359 | } |
| 2360 | break; |
| 2361 | case CELT_SET_ANALYSIS_REQUEST: |
| 2362 | { |
| 2363 | AnalysisInfo *info = va_arg(ap, AnalysisInfo *); |
| 2364 | if (info) |
| 2365 | OPUS_COPY(&st->analysis, info, 1); |
| 2366 | } |
| 2367 | break; |
| 2368 | case CELT_GET_MODE_REQUEST: |
| 2369 | { |
| 2370 | const CELTMode ** value = va_arg(ap, const CELTMode**); |
| 2371 | if (value==0) |
| 2372 | goto bad_arg; |
| 2373 | *value=st->mode; |
| 2374 | } |
| 2375 | break; |
| 2376 | case OPUS_GET_FINAL_RANGE_REQUEST: |
| 2377 | { |
| 2378 | opus_uint32 * value = va_arg(ap, opus_uint32 *); |
| 2379 | if (value==0) |
| 2380 | goto bad_arg; |
| 2381 | *value=st->rng; |
| 2382 | } |
| 2383 | break; |
| 2384 | case OPUS_SET_LFE_REQUEST: |
| 2385 | { |
| 2386 | opus_int32 value = va_arg(ap, opus_int32); |
| 2387 | st->lfe = value; |
| 2388 | } |
| 2389 | break; |
| 2390 | case OPUS_SET_ENERGY_MASK_REQUEST: |
| 2391 | { |
| 2392 | opus_val16 *value = va_arg(ap, opus_val16*); |
| 2393 | st->energy_mask = value; |
| 2394 | } |
| 2395 | break; |
| 2396 | default: |
| 2397 | goto bad_request; |
| 2398 | } |
| 2399 | va_end(ap); |
| 2400 | return OPUS_OK; |
| 2401 | bad_arg: |
| 2402 | va_end(ap); |
| 2403 | return OPUS_BAD_ARG; |
| 2404 | bad_request: |
| 2405 | va_end(ap); |
| 2406 | return OPUS_UNIMPLEMENTED; |
| 2407 | } |