| File: | root/firefox-clang/media/libopus/celt/celt_encoder.c |
| Warning: | line 1279, column 7 Value stored to 'r22' is never read |
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| 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 | #ifndef M_PI3.14159265358979323846 |
| 56 | #define M_PI3.14159265358979323846 3.141592653 |
| 57 | #endif |
| 58 | |
| 59 | |
| 60 | /** Encoder state |
| 61 | @brief Encoder state |
| 62 | */ |
| 63 | struct OpusCustomEncoder { |
| 64 | const OpusCustomMode *mode; /**< Mode used by the encoder */ |
| 65 | int channels; |
| 66 | int stream_channels; |
| 67 | |
| 68 | int force_intra; |
| 69 | int clip; |
| 70 | int disable_pf; |
| 71 | int complexity; |
| 72 | int upsample; |
| 73 | int start, end; |
| 74 | |
| 75 | opus_int32 bitrate; |
| 76 | int vbr; |
| 77 | int signalling; |
| 78 | int constrained_vbr; /* If zero, VBR can do whatever it likes with the rate */ |
| 79 | int loss_rate; |
| 80 | int lsb_depth; |
| 81 | int lfe; |
| 82 | int disable_inv; |
| 83 | int arch; |
| 84 | |
| 85 | /* Everything beyond this point gets cleared on a reset */ |
| 86 | #define ENCODER_RESET_STARTrng rng |
| 87 | |
| 88 | opus_uint32 rng; |
| 89 | int spread_decision; |
| 90 | opus_val32 delayedIntra; |
| 91 | int tonal_average; |
| 92 | int lastCodedBands; |
| 93 | int hf_average; |
| 94 | int tapset_decision; |
| 95 | |
| 96 | int prefilter_period; |
| 97 | opus_val16 prefilter_gain; |
| 98 | int prefilter_tapset; |
| 99 | #ifdef RESYNTH |
| 100 | int prefilter_period_old; |
| 101 | opus_val16 prefilter_gain_old; |
| 102 | int prefilter_tapset_old; |
| 103 | #endif |
| 104 | int consec_transient; |
| 105 | AnalysisInfo analysis; |
| 106 | SILKInfo silk_info; |
| 107 | |
| 108 | opus_val32 preemph_memE[2]; |
| 109 | opus_val32 preemph_memD[2]; |
| 110 | |
| 111 | /* VBR-related parameters */ |
| 112 | opus_int32 vbr_reservoir; |
| 113 | opus_int32 vbr_drift; |
| 114 | opus_int32 vbr_offset; |
| 115 | opus_int32 vbr_count; |
| 116 | opus_val32 overlap_max; |
| 117 | opus_val16 stereo_saving; |
| 118 | int intensity; |
| 119 | celt_glog *energy_mask; |
| 120 | celt_glog spec_avg; |
| 121 | |
| 122 | #ifdef RESYNTH |
| 123 | /* +MAX_PERIOD/2 to make space for overlap */ |
| 124 | celt_sig syn_mem[2][2*MAX_PERIOD1024+MAX_PERIOD1024/2]; |
| 125 | #endif |
| 126 | |
| 127 | celt_sig in_mem[1]; /* Size = channels*mode->overlap */ |
| 128 | /* celt_sig prefilter_mem[], Size = channels*COMBFILTER_MAXPERIOD */ |
| 129 | /* celt_glog oldBandE[], Size = channels*mode->nbEBands */ |
| 130 | /* celt_glog oldLogE[], Size = channels*mode->nbEBands */ |
| 131 | /* celt_glog oldLogE2[], Size = channels*mode->nbEBands */ |
| 132 | /* celt_glog energyError[], Size = channels*mode->nbEBands */ |
| 133 | }; |
| 134 | |
| 135 | int celt_encoder_get_size(int channels) |
| 136 | { |
| 137 | CELTModeOpusCustomMode *mode = opus_custom_mode_create(48000, 960, NULL((void*)0)); |
| 138 | return opus_custom_encoder_get_size(mode, channels); |
| 139 | } |
| 140 | |
| 141 | OPUS_CUSTOM_NOSTATICstatic inline int opus_custom_encoder_get_size(const CELTModeOpusCustomMode *mode, int channels) |
| 142 | { |
| 143 | int size = sizeof(struct CELTEncoderOpusCustomEncoder) |
| 144 | + (channels*mode->overlap-1)*sizeof(celt_sig) /* celt_sig in_mem[channels*mode->overlap]; */ |
| 145 | + channels*COMBFILTER_MAXPERIOD1024*sizeof(celt_sig) /* celt_sig prefilter_mem[channels*COMBFILTER_MAXPERIOD]; */ |
| 146 | + 4*channels*mode->nbEBands*sizeof(celt_glog); /* celt_glog oldBandE[channels*mode->nbEBands]; */ |
| 147 | /* celt_glog oldLogE[channels*mode->nbEBands]; */ |
| 148 | /* celt_glog oldLogE2[channels*mode->nbEBands]; */ |
| 149 | /* celt_glog energyError[channels*mode->nbEBands]; */ |
| 150 | return size; |
| 151 | } |
| 152 | |
| 153 | #ifdef CUSTOM_MODES |
| 154 | CELTEncoderOpusCustomEncoder *opus_custom_encoder_create(const CELTModeOpusCustomMode *mode, int channels, int *error) |
| 155 | { |
| 156 | int ret; |
| 157 | CELTEncoderOpusCustomEncoder *st = (CELTEncoderOpusCustomEncoder *)opus_alloc(opus_custom_encoder_get_size(mode, channels)); |
| 158 | /* init will handle the NULL case */ |
| 159 | ret = opus_custom_encoder_init(st, mode, channels); |
| 160 | if (ret != OPUS_OK0) |
| 161 | { |
| 162 | opus_custom_encoder_destroy(st); |
| 163 | st = NULL((void*)0); |
| 164 | } |
| 165 | if (error) |
| 166 | *error = ret; |
| 167 | return st; |
| 168 | } |
| 169 | #endif /* CUSTOM_MODES */ |
| 170 | |
| 171 | static int opus_custom_encoder_init_arch(CELTEncoderOpusCustomEncoder *st, const CELTModeOpusCustomMode *mode, |
| 172 | int channels, int arch) |
| 173 | { |
| 174 | if (channels < 0 || channels > 2) |
| 175 | return OPUS_BAD_ARG-1; |
| 176 | |
| 177 | if (st==NULL((void*)0) || mode==NULL((void*)0)) |
| 178 | return OPUS_ALLOC_FAIL-7; |
| 179 | |
| 180 | OPUS_CLEAR((char*)st, opus_custom_encoder_get_size(mode, channels))(memset(((char*)st), 0, (opus_custom_encoder_get_size(mode, channels ))*sizeof(*((char*)st)))); |
| 181 | |
| 182 | st->mode = mode; |
| 183 | st->stream_channels = st->channels = channels; |
| 184 | |
| 185 | st->upsample = 1; |
| 186 | st->start = 0; |
| 187 | st->end = st->mode->effEBands; |
| 188 | st->signalling = 1; |
| 189 | st->arch = arch; |
| 190 | |
| 191 | st->constrained_vbr = 1; |
| 192 | st->clip = 1; |
| 193 | |
| 194 | st->bitrate = OPUS_BITRATE_MAX-1; |
| 195 | st->vbr = 0; |
| 196 | st->force_intra = 0; |
| 197 | st->complexity = 5; |
| 198 | st->lsb_depth=24; |
| 199 | |
| 200 | opus_custom_encoder_ctl(st, OPUS_RESET_STATE4028); |
| 201 | |
| 202 | return OPUS_OK0; |
| 203 | } |
| 204 | |
| 205 | #ifdef CUSTOM_MODES |
| 206 | int opus_custom_encoder_init(CELTEncoderOpusCustomEncoder *st, const CELTModeOpusCustomMode *mode, int channels) |
| 207 | { |
| 208 | return opus_custom_encoder_init_arch(st, mode, channels, opus_select_arch()); |
| 209 | } |
| 210 | #endif |
| 211 | |
| 212 | int celt_encoder_init(CELTEncoderOpusCustomEncoder *st, opus_int32 sampling_rate, int channels, |
| 213 | int arch) |
| 214 | { |
| 215 | int ret; |
| 216 | ret = opus_custom_encoder_init_arch(st, |
| 217 | opus_custom_mode_create(48000, 960, NULL((void*)0)), channels, arch); |
| 218 | if (ret != OPUS_OK0) |
| 219 | return ret; |
| 220 | st->upsample = resampling_factor(sampling_rate); |
| 221 | return OPUS_OK0; |
| 222 | } |
| 223 | |
| 224 | #ifdef CUSTOM_MODES |
| 225 | void opus_custom_encoder_destroy(CELTEncoderOpusCustomEncoder *st) |
| 226 | { |
| 227 | opus_free(st); |
| 228 | } |
| 229 | #endif /* CUSTOM_MODES */ |
| 230 | |
| 231 | |
| 232 | static int transient_analysis(const opus_val32 * OPUS_RESTRICTrestrict in, int len, int C, |
| 233 | opus_val16 *tf_estimate, int *tf_chan, int allow_weak_transients, |
| 234 | int *weak_transient, opus_val16 tone_freq, opus_val32 toneishness) |
| 235 | { |
| 236 | int i; |
| 237 | VARDECL(opus_val16, tmp)opus_val16 *tmp; |
| 238 | opus_val32 mem0,mem1; |
| 239 | int is_transient = 0; |
| 240 | opus_int32 mask_metric = 0; |
| 241 | int c; |
| 242 | opus_val16 tf_max; |
| 243 | int len2; |
| 244 | /* Forward masking: 6.7 dB/ms. */ |
| 245 | #ifdef FIXED_POINT |
| 246 | int forward_shift = 4; |
| 247 | #else |
| 248 | opus_val16 forward_decay = QCONST16(.0625f,15)(.0625f); |
| 249 | #endif |
| 250 | /* Table of 6*64/x, trained on real data to minimize the average error */ |
| 251 | static const unsigned char inv_table[128] = { |
| 252 | 255,255,156,110, 86, 70, 59, 51, 45, 40, 37, 33, 31, 28, 26, 25, |
| 253 | 23, 22, 21, 20, 19, 18, 17, 16, 16, 15, 15, 14, 13, 13, 12, 12, |
| 254 | 12, 12, 11, 11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, |
| 255 | 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, |
| 256 | 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, |
| 257 | 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
| 258 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, |
| 259 | 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, |
| 260 | }; |
| 261 | SAVE_STACK; |
| 262 | #ifdef FIXED_POINT |
| 263 | int in_shift = IMAX(0, celt_ilog2(1+celt_maxabs32(in, C*len))-14)((0) > (celt_ilog2(1+celt_maxabs16(in,C*len))-14) ? (0) : ( celt_ilog2(1+celt_maxabs16(in,C*len))-14)); |
| 264 | #endif |
| 265 | ALLOC(tmp, len, opus_val16)tmp = ((opus_val16*)__builtin_alloca (sizeof(opus_val16)*(len ))); |
| 266 | |
| 267 | *weak_transient = 0; |
| 268 | /* For lower bitrates, let's be more conservative and have a forward masking |
| 269 | decay of 3.3 dB/ms. This avoids having to code transients at very low |
| 270 | bitrate (mostly for hybrid), which can result in unstable energy and/or |
| 271 | partial collapse. */ |
| 272 | if (allow_weak_transients) |
| 273 | { |
| 274 | #ifdef FIXED_POINT |
| 275 | forward_shift = 5; |
| 276 | #else |
| 277 | forward_decay = QCONST16(.03125f,15)(.03125f); |
| 278 | #endif |
| 279 | } |
| 280 | len2=len/2; |
| 281 | for (c=0;c<C;c++) |
| 282 | { |
| 283 | opus_val32 mean; |
| 284 | opus_int32 unmask=0; |
| 285 | opus_val32 norm; |
| 286 | opus_val16 maxE; |
| 287 | mem0=0; |
| 288 | mem1=0; |
| 289 | /* High-pass filter: (1 - 2*z^-1 + z^-2) / (1 - z^-1 + .5*z^-2) */ |
| 290 | for (i=0;i<len;i++) |
| 291 | { |
| 292 | #ifndef FIXED_POINT |
| 293 | float mem00; |
| 294 | #endif |
| 295 | opus_val32 x,y; |
| 296 | x = SHR32(in[i+c*len],in_shift)(in[i+c*len]); |
| 297 | y = ADD32(mem0, x)((mem0)+(x)); |
| 298 | #ifdef FIXED_POINT |
| 299 | mem0 = mem1 + y - SHL32(x,1)(x); |
| 300 | mem1 = x - SHR32(y,1)(y); |
| 301 | #else |
| 302 | /* Original code: |
| 303 | mem0 = mem1 + y - 2*x; |
| 304 | mem1 = x - .5f*y; |
| 305 | Modified code to shorten dependency chains: */ |
| 306 | mem00=mem0; |
| 307 | mem0 = mem0 - x + .5f*mem1; |
| 308 | mem1 = x - mem00; |
| 309 | #endif |
| 310 | tmp[i] = SROUND16(y, 2)(y); |
| 311 | /*printf("%f ", tmp[i]);*/ |
| 312 | } |
| 313 | /*printf("\n");*/ |
| 314 | /* First few samples are bad because we don't propagate the memory */ |
| 315 | OPUS_CLEAR(tmp, 12)(memset((tmp), 0, (12)*sizeof(*(tmp)))); |
| 316 | |
| 317 | #ifdef FIXED_POINT |
| 318 | /* Normalize tmp to max range */ |
| 319 | { |
| 320 | int shift=0; |
| 321 | shift = 14-celt_ilog2(MAX16(1, celt_maxabs16(tmp, len))((1) > (celt_maxabs16(tmp, len)) ? (1) : (celt_maxabs16(tmp , len)))); |
| 322 | if (shift!=0) |
| 323 | { |
| 324 | for (i=0;i<len;i++) |
| 325 | tmp[i] = SHL16(tmp[i], shift)(tmp[i]); |
| 326 | } |
| 327 | } |
| 328 | #endif |
| 329 | |
| 330 | mean=0; |
| 331 | mem0=0; |
| 332 | /* Grouping by two to reduce complexity */ |
| 333 | /* Forward pass to compute the post-echo threshold*/ |
| 334 | for (i=0;i<len2;i++) |
| 335 | { |
| 336 | opus_val32 x2 = PSHR32(MULT16_16(tmp[2*i],tmp[2*i]) + MULT16_16(tmp[2*i+1],tmp[2*i+1]),4)(((opus_val32)(tmp[2*i])*(opus_val32)(tmp[2*i])) + ((opus_val32 )(tmp[2*i+1])*(opus_val32)(tmp[2*i+1]))); |
| 337 | mean += PSHR32(x2, 12)(x2); |
| 338 | #ifdef FIXED_POINT |
| 339 | /* FIXME: Use PSHR16() instead */ |
| 340 | mem0 = mem0 + PSHR32(x2-mem0,forward_shift)(x2-mem0); |
| 341 | tmp[i] = PSHR32(mem0, 12)(mem0); |
| 342 | #else |
| 343 | mem0 = x2 + (1.f-forward_decay)*mem0; |
| 344 | tmp[i] = forward_decay*mem0; |
| 345 | #endif |
| 346 | } |
| 347 | |
| 348 | mem0=0; |
| 349 | maxE=0; |
| 350 | /* Backward pass to compute the pre-echo threshold */ |
| 351 | for (i=len2-1;i>=0;i--) |
| 352 | { |
| 353 | /* Backward masking: 13.9 dB/ms. */ |
| 354 | #ifdef FIXED_POINT |
| 355 | /* FIXME: Use PSHR16() instead */ |
| 356 | mem0 = mem0 + PSHR32(SHL32(tmp[i],4)-mem0,3)((tmp[i])-mem0); |
| 357 | tmp[i] = PSHR32(mem0, 4)(mem0); |
| 358 | maxE = MAX16(maxE, tmp[i])((maxE) > (tmp[i]) ? (maxE) : (tmp[i])); |
| 359 | #else |
| 360 | mem0 = tmp[i] + 0.875f*mem0; |
| 361 | tmp[i] = 0.125f*mem0; |
| 362 | maxE = MAX16(maxE, 0.125f*mem0)((maxE) > (0.125f*mem0) ? (maxE) : (0.125f*mem0)); |
| 363 | #endif |
| 364 | } |
| 365 | /*for (i=0;i<len2;i++)printf("%f ", tmp[i]/mean);printf("\n");*/ |
| 366 | |
| 367 | /* Compute the ratio of the "frame energy" over the harmonic mean of the energy. |
| 368 | This essentially corresponds to a bitrate-normalized temporal noise-to-mask |
| 369 | ratio */ |
| 370 | |
| 371 | /* As a compromise with the old transient detector, frame energy is the |
| 372 | geometric mean of the energy and half the max */ |
| 373 | #ifdef FIXED_POINT |
| 374 | /* Costs two sqrt() to avoid overflows */ |
| 375 | mean = MULT16_16(celt_sqrt(mean), celt_sqrt(MULT16_16(maxE,len2>>1)))((opus_val32)(((float)sqrt(mean)))*(opus_val32)(((float)sqrt( ((opus_val32)(maxE)*(opus_val32)(len2>>1)))))); |
| 376 | #else |
| 377 | mean = celt_sqrt(mean * maxE*.5*len2)((float)sqrt(mean * maxE*.5*len2)); |
| 378 | #endif |
| 379 | /* Inverse of the mean energy in Q15+6 */ |
| 380 | norm = SHL32(EXTEND32(len2),6+14)((len2))/ADD32(EPSILON,SHR32(mean,1))((1e-15f)+((mean))); |
| 381 | /* Compute harmonic mean discarding the unreliable boundaries |
| 382 | The data is smooth, so we only take 1/4th of the samples */ |
| 383 | unmask=0; |
| 384 | /* We should never see NaNs here. If we find any, then something really bad happened and we better abort |
| 385 | before it does any damage later on. If these asserts are disabled (no hardening), then the table |
| 386 | lookup a few lines below (id = ...) is likely to crash dur to an out-of-bounds read. DO NOT FIX |
| 387 | that crash on NaN since it could result in a worse issue later on. */ |
| 388 | celt_assert(!celt_isnan(tmp[0])){if (!(!((tmp[0])!=(tmp[0])))) {celt_fatal("assertion failed: " "!celt_isnan(tmp[0])", "/root/firefox-clang/media/libopus/celt/celt_encoder.c" , 388);}}; |
| 389 | celt_assert(!celt_isnan(norm)){if (!(!((norm)!=(norm)))) {celt_fatal("assertion failed: " "!celt_isnan(norm)" , "/root/firefox-clang/media/libopus/celt/celt_encoder.c", 389 );}}; |
| 390 | for (i=12;i<len2-5;i+=4) |
| 391 | { |
| 392 | int id; |
| 393 | #ifdef FIXED_POINT |
| 394 | id = MAX32(0,MIN32(127,MULT16_32_Q15(tmp[i]+EPSILON,norm)))((0) > (((127) < (((tmp[i]+1e-15f)*(norm))) ? (127) : ( ((tmp[i]+1e-15f)*(norm))))) ? (0) : (((127) < (((tmp[i]+1e-15f )*(norm))) ? (127) : (((tmp[i]+1e-15f)*(norm)))))); /* Do not round to nearest */ |
| 395 | #else |
| 396 | id = (int)MAX32(0,MIN32(127,floor(64*norm*(tmp[i]+EPSILON))))((0) > (((127) < (floor(64*norm*(tmp[i]+1e-15f))) ? (127 ) : (floor(64*norm*(tmp[i]+1e-15f))))) ? (0) : (((127) < ( floor(64*norm*(tmp[i]+1e-15f))) ? (127) : (floor(64*norm*(tmp [i]+1e-15f)))))); /* Do not round to nearest */ |
| 397 | #endif |
| 398 | unmask += inv_table[id]; |
| 399 | } |
| 400 | /*printf("%d\n", unmask);*/ |
| 401 | /* Normalize, compensate for the 1/4th of the sample and the factor of 6 in the inverse table */ |
| 402 | unmask = 64*unmask*4/(6*(len2-17)); |
| 403 | if (unmask>mask_metric) |
| 404 | { |
| 405 | *tf_chan = c; |
| 406 | mask_metric = unmask; |
| 407 | } |
| 408 | } |
| 409 | is_transient = mask_metric>200; |
| 410 | /* Prevent the transient detector from confusing the partial cycle of a |
| 411 | very low frequency tone with a transient. */ |
| 412 | if (toneishness > QCONST32(.98f, 29)(.98f) && tone_freq < QCONST16(0.026f, 13)(0.026f)) |
| 413 | is_transient = 0; |
| 414 | /* For low bitrates, define "weak transients" that need to be |
| 415 | handled differently to avoid partial collapse. */ |
| 416 | if (allow_weak_transients && is_transient && mask_metric<600) { |
| 417 | is_transient = 0; |
| 418 | *weak_transient = 1; |
| 419 | } |
| 420 | /* Arbitrary metric for VBR boost */ |
| 421 | tf_max = MAX16(0,celt_sqrt(27*mask_metric)-42)((0) > (((float)sqrt(27*mask_metric))-42) ? (0) : (((float )sqrt(27*mask_metric))-42)); |
| 422 | /* *tf_estimate = 1 + MIN16(1, sqrt(MAX16(0, tf_max-30))/20); */ |
| 423 | *tf_estimate = celt_sqrt(MAX32(0, SHL32(MULT16_16(QCONST16(0.0069,14),MIN16(163,tf_max)),14)-QCONST32(0.139,28)))((float)sqrt(((0) > ((((opus_val32)((0.0069))*(opus_val32) (((163) < (tf_max) ? (163) : (tf_max)))))-(0.139)) ? (0) : ((((opus_val32)((0.0069))*(opus_val32)(((163) < (tf_max) ? (163) : (tf_max)))))-(0.139))))); |
| 424 | /*printf("%d %f\n", tf_max, mask_metric);*/ |
| 425 | RESTORE_STACK; |
| 426 | #ifdef FUZZING |
| 427 | is_transient = rand()&0x1; |
| 428 | #endif |
| 429 | /*printf("%d %f %d\n", is_transient, (float)*tf_estimate, tf_max);*/ |
| 430 | return is_transient; |
| 431 | } |
| 432 | |
| 433 | /* Looks for sudden increases of energy to decide whether we need to patch |
| 434 | the transient decision */ |
| 435 | static int patch_transient_decision(celt_glog *newE, celt_glog *oldE, int nbEBands, |
| 436 | int start, int end, int C) |
| 437 | { |
| 438 | int i, c; |
| 439 | opus_val32 mean_diff=0; |
| 440 | celt_glog spread_old[26]; |
| 441 | /* Apply an aggressive (-6 dB/Bark) spreading function to the old frame to |
| 442 | avoid false detection caused by irrelevant bands */ |
| 443 | if (C==1) |
| 444 | { |
| 445 | spread_old[start] = oldE[start]; |
| 446 | for (i=start+1;i<end;i++) |
| 447 | spread_old[i] = MAXG(spread_old[i-1]-GCONST(1.0f), oldE[i])((spread_old[i-1]-(1.0f)) > (oldE[i]) ? (spread_old[i-1]-( 1.0f)) : (oldE[i])); |
| 448 | } else { |
| 449 | spread_old[start] = MAXG(oldE[start],oldE[start+nbEBands])((oldE[start]) > (oldE[start+nbEBands]) ? (oldE[start]) : ( oldE[start+nbEBands])); |
| 450 | for (i=start+1;i<end;i++) |
| 451 | spread_old[i] = MAXG(spread_old[i-1]-GCONST(1.0f),((spread_old[i-1]-(1.0f)) > (((oldE[i]) > (oldE[i+nbEBands ]) ? (oldE[i]) : (oldE[i+nbEBands]))) ? (spread_old[i-1]-(1.0f )) : (((oldE[i]) > (oldE[i+nbEBands]) ? (oldE[i]) : (oldE[ i+nbEBands])))) |
| 452 | MAXG(oldE[i],oldE[i+nbEBands]))((spread_old[i-1]-(1.0f)) > (((oldE[i]) > (oldE[i+nbEBands ]) ? (oldE[i]) : (oldE[i+nbEBands]))) ? (spread_old[i-1]-(1.0f )) : (((oldE[i]) > (oldE[i+nbEBands]) ? (oldE[i]) : (oldE[ i+nbEBands])))); |
| 453 | } |
| 454 | for (i=end-2;i>=start;i--) |
| 455 | spread_old[i] = MAXG(spread_old[i], spread_old[i+1]-GCONST(1.0f))((spread_old[i]) > (spread_old[i+1]-(1.0f)) ? (spread_old[ i]) : (spread_old[i+1]-(1.0f))); |
| 456 | /* Compute mean increase */ |
| 457 | c=0; do { |
| 458 | for (i=IMAX(2,start)((2) > (start) ? (2) : (start));i<end-1;i++) |
| 459 | { |
| 460 | opus_val16 x1, x2; |
| 461 | x1 = MAXG(0, newE[i + c*nbEBands])((0) > (newE[i + c*nbEBands]) ? (0) : (newE[i + c*nbEBands ])); |
| 462 | x2 = MAXG(0, spread_old[i])((0) > (spread_old[i]) ? (0) : (spread_old[i])); |
| 463 | mean_diff = ADD32(mean_diff, MAXG(0, SUB32(x1, x2)))((mean_diff)+(((0) > (((x1)-(x2))) ? (0) : (((x1)-(x2))))) ); |
| 464 | } |
| 465 | } while (++c<C); |
| 466 | mean_diff = DIV32(mean_diff, C*(end-1-IMAX(2,start)))(((opus_val32)(mean_diff))/(opus_val32)(C*(end-1-((2) > (start ) ? (2) : (start))))); |
| 467 | /*printf("%f %f %d\n", mean_diff, max_diff, count);*/ |
| 468 | return mean_diff > GCONST(1.f)(1.f); |
| 469 | } |
| 470 | |
| 471 | /** Apply window and compute the MDCT for all sub-frames and |
| 472 | all channels in a frame */ |
| 473 | static void compute_mdcts(const CELTModeOpusCustomMode *mode, int shortBlocks, celt_sig * OPUS_RESTRICTrestrict in, |
| 474 | celt_sig * OPUS_RESTRICTrestrict out, int C, int CC, int LM, int upsample, |
| 475 | int arch) |
| 476 | { |
| 477 | const int overlap = mode->overlap; |
| 478 | int N; |
| 479 | int B; |
| 480 | int shift; |
| 481 | int i, b, c; |
| 482 | if (shortBlocks) |
| 483 | { |
| 484 | B = shortBlocks; |
| 485 | N = mode->shortMdctSize; |
| 486 | shift = mode->maxLM; |
| 487 | } else { |
| 488 | B = 1; |
| 489 | N = mode->shortMdctSize<<LM; |
| 490 | shift = mode->maxLM-LM; |
| 491 | } |
| 492 | c=0; do { |
| 493 | for (b=0;b<B;b++) |
| 494 | { |
| 495 | /* Interleaving the sub-frames while doing the MDCTs */ |
| 496 | clt_mdct_forward(&mode->mdct, in+c*(B*N+overlap)+b*N,clt_mdct_forward_c(&mode->mdct, in+c*(B*N+overlap)+b*N , &out[b+c*N*B], mode->window, overlap, shift, B, arch ) |
| 497 | &out[b+c*N*B], mode->window, overlap, shift, B,clt_mdct_forward_c(&mode->mdct, in+c*(B*N+overlap)+b*N , &out[b+c*N*B], mode->window, overlap, shift, B, arch ) |
| 498 | arch)clt_mdct_forward_c(&mode->mdct, in+c*(B*N+overlap)+b*N , &out[b+c*N*B], mode->window, overlap, shift, B, arch ); |
| 499 | } |
| 500 | } while (++c<CC); |
| 501 | if (CC==2&&C==1) |
| 502 | { |
| 503 | for (i=0;i<B*N;i++) |
| 504 | out[i] = ADD32(HALF32(out[i]), HALF32(out[B*N+i]))(((.5f*(out[i])))+((.5f*(out[B*N+i])))); |
| 505 | } |
| 506 | if (upsample != 1) |
| 507 | { |
| 508 | c=0; do |
| 509 | { |
| 510 | int bound = B*N/upsample; |
| 511 | for (i=0;i<bound;i++) |
| 512 | out[c*B*N+i] *= upsample; |
| 513 | OPUS_CLEAR(&out[c*B*N+bound], B*N-bound)(memset((&out[c*B*N+bound]), 0, (B*N-bound)*sizeof(*(& out[c*B*N+bound])))); |
| 514 | } while (++c<C); |
| 515 | } |
| 516 | } |
| 517 | |
| 518 | |
| 519 | void celt_preemphasis(const opus_res * OPUS_RESTRICTrestrict pcmp, celt_sig * OPUS_RESTRICTrestrict inp, |
| 520 | int N, int CC, int upsample, const opus_val16 *coef, celt_sig *mem, int clip) |
| 521 | { |
| 522 | int i; |
| 523 | opus_val16 coef0; |
| 524 | celt_sig m; |
| 525 | int Nu; |
| 526 | |
| 527 | coef0 = coef[0]; |
| 528 | m = *mem; |
| 529 | |
| 530 | /* Fast path for the normal 48kHz case and no clipping */ |
| 531 | if (coef[1] == 0 && upsample == 1 && !clip) |
| 532 | { |
| 533 | for (i=0;i<N;i++) |
| 534 | { |
| 535 | celt_sig x; |
| 536 | x = RES2SIG(pcmp[CC*i])(32768.f*(pcmp[CC*i])); |
| 537 | /* Apply pre-emphasis */ |
| 538 | inp[i] = x - m; |
| 539 | m = MULT16_32_Q15(coef0, x)((coef0)*(x)); |
| 540 | } |
| 541 | *mem = m; |
| 542 | return; |
| 543 | } |
| 544 | |
| 545 | Nu = N/upsample; |
| 546 | if (upsample!=1) |
| 547 | { |
| 548 | OPUS_CLEAR(inp, N)(memset((inp), 0, (N)*sizeof(*(inp)))); |
| 549 | } |
| 550 | for (i=0;i<Nu;i++) |
| 551 | inp[i*upsample] = RES2SIG(pcmp[CC*i])(32768.f*(pcmp[CC*i])); |
| 552 | |
| 553 | #ifndef FIXED_POINT |
| 554 | if (clip) |
| 555 | { |
| 556 | /* Clip input to avoid encoding non-portable files */ |
| 557 | for (i=0;i<Nu;i++) |
| 558 | inp[i*upsample] = MAX32(-65536.f, MIN32(65536.f,inp[i*upsample]))((-65536.f) > (((65536.f) < (inp[i*upsample]) ? (65536.f ) : (inp[i*upsample]))) ? (-65536.f) : (((65536.f) < (inp[ i*upsample]) ? (65536.f) : (inp[i*upsample])))); |
| 559 | } |
| 560 | #else |
| 561 | (void)clip; /* Avoids a warning about clip being unused. */ |
| 562 | #endif |
| 563 | #ifdef CUSTOM_MODES |
| 564 | if (coef[1] != 0) |
| 565 | { |
| 566 | opus_val16 coef1 = coef[1]; |
| 567 | opus_val16 coef2 = coef[2]; |
| 568 | for (i=0;i<N;i++) |
| 569 | { |
| 570 | celt_sig x, tmp; |
| 571 | x = inp[i]; |
| 572 | /* Apply pre-emphasis */ |
| 573 | tmp = SHL32(MULT16_32_Q15(coef2, x), 15-SIG_SHIFT)(((coef2)*(x))); |
| 574 | inp[i] = tmp + m; |
| 575 | m = MULT16_32_Q15(coef1, inp[i])((coef1)*(inp[i])) - MULT16_32_Q15(coef0, tmp)((coef0)*(tmp)); |
| 576 | } |
| 577 | } else |
| 578 | #endif |
| 579 | { |
| 580 | for (i=0;i<N;i++) |
| 581 | { |
| 582 | celt_sig x; |
| 583 | x = inp[i]; |
| 584 | /* Apply pre-emphasis */ |
| 585 | inp[i] = x - m; |
| 586 | m = MULT16_32_Q15(coef0, x)((coef0)*(x)); |
| 587 | } |
| 588 | } |
| 589 | *mem = m; |
| 590 | } |
| 591 | |
| 592 | |
| 593 | |
| 594 | static opus_val32 l1_metric(const celt_norm *tmp, int N, int LM, opus_val16 bias) |
| 595 | { |
| 596 | int i; |
| 597 | opus_val32 L1; |
| 598 | L1 = 0; |
| 599 | for (i=0;i<N;i++) |
| 600 | L1 += EXTEND32(ABS16(tmp[i]))(((float)fabs(tmp[i]))); |
| 601 | /* When in doubt, prefer good freq resolution */ |
| 602 | L1 = MAC16_32_Q15(L1, LM*bias, L1)((L1)+(LM*bias)*(L1)); |
| 603 | return L1; |
| 604 | |
| 605 | } |
| 606 | |
| 607 | static int tf_analysis(const CELTModeOpusCustomMode *m, int len, int isTransient, |
| 608 | int *tf_res, int lambda, celt_norm *X, int N0, int LM, |
| 609 | opus_val16 tf_estimate, int tf_chan, int *importance) |
| 610 | { |
| 611 | int i; |
| 612 | VARDECL(int, metric)int *metric; |
| 613 | int cost0; |
| 614 | int cost1; |
| 615 | VARDECL(int, path0)int *path0; |
| 616 | VARDECL(int, path1)int *path1; |
| 617 | VARDECL(celt_norm, tmp)celt_norm *tmp; |
| 618 | VARDECL(celt_norm, tmp_1)celt_norm *tmp_1; |
| 619 | int sel; |
| 620 | int selcost[2]; |
| 621 | int tf_select=0; |
| 622 | opus_val16 bias; |
| 623 | |
| 624 | SAVE_STACK; |
| 625 | bias = MULT16_16_Q14(QCONST16(.04f,15), MAX16(-QCONST16(.25f,14), QCONST16(.5f,14)-tf_estimate))(((.04f))*(((-(.25f)) > ((.5f)-tf_estimate) ? (-(.25f)) : ( (.5f)-tf_estimate)))); |
| 626 | /*printf("%f ", bias);*/ |
| 627 | |
| 628 | ALLOC(metric, len, int)metric = ((int*)__builtin_alloca (sizeof(int)*(len))); |
| 629 | ALLOC(tmp, (m->eBands[len]-m->eBands[len-1])<<LM, celt_norm)tmp = ((celt_norm*)__builtin_alloca (sizeof(celt_norm)*((m-> eBands[len]-m->eBands[len-1])<<LM))); |
| 630 | ALLOC(tmp_1, (m->eBands[len]-m->eBands[len-1])<<LM, celt_norm)tmp_1 = ((celt_norm*)__builtin_alloca (sizeof(celt_norm)*((m-> eBands[len]-m->eBands[len-1])<<LM))); |
| 631 | ALLOC(path0, len, int)path0 = ((int*)__builtin_alloca (sizeof(int)*(len))); |
| 632 | ALLOC(path1, len, int)path1 = ((int*)__builtin_alloca (sizeof(int)*(len))); |
| 633 | |
| 634 | for (i=0;i<len;i++) |
| 635 | { |
| 636 | int k, N; |
| 637 | int narrow; |
| 638 | opus_val32 L1, best_L1; |
| 639 | int best_level=0; |
| 640 | N = (m->eBands[i+1]-m->eBands[i])<<LM; |
| 641 | /* band is too narrow to be split down to LM=-1 */ |
| 642 | narrow = (m->eBands[i+1]-m->eBands[i])==1; |
| 643 | OPUS_COPY(tmp, &X[tf_chan*N0 + (m->eBands[i]<<LM)], N)(memcpy((tmp), (&X[tf_chan*N0 + (m->eBands[i]<<LM )]), (N)*sizeof(*(tmp)) + 0*((tmp)-(&X[tf_chan*N0 + (m-> eBands[i]<<LM)])) )); |
| 644 | /* Just add the right channel if we're in stereo */ |
| 645 | /*if (C==2) |
| 646 | for (j=0;j<N;j++) |
| 647 | tmp[j] = ADD16(SHR16(tmp[j], 1),SHR16(X[N0+j+(m->eBands[i]<<LM)], 1));*/ |
| 648 | L1 = l1_metric(tmp, N, isTransient ? LM : 0, bias); |
| 649 | best_L1 = L1; |
| 650 | /* Check the -1 case for transients */ |
| 651 | if (isTransient && !narrow) |
| 652 | { |
| 653 | OPUS_COPY(tmp_1, tmp, N)(memcpy((tmp_1), (tmp), (N)*sizeof(*(tmp_1)) + 0*((tmp_1)-(tmp )) )); |
| 654 | haar1(tmp_1, N>>LM, 1<<LM); |
| 655 | L1 = l1_metric(tmp_1, N, LM+1, bias); |
| 656 | if (L1<best_L1) |
| 657 | { |
| 658 | best_L1 = L1; |
| 659 | best_level = -1; |
| 660 | } |
| 661 | } |
| 662 | /*printf ("%f ", L1);*/ |
| 663 | for (k=0;k<LM+!(isTransient||narrow);k++) |
| 664 | { |
| 665 | int B; |
| 666 | |
| 667 | if (isTransient) |
| 668 | B = (LM-k-1); |
| 669 | else |
| 670 | B = k+1; |
| 671 | |
| 672 | haar1(tmp, N>>k, 1<<k); |
| 673 | |
| 674 | L1 = l1_metric(tmp, N, B, bias); |
| 675 | |
| 676 | if (L1 < best_L1) |
| 677 | { |
| 678 | best_L1 = L1; |
| 679 | best_level = k+1; |
| 680 | } |
| 681 | } |
| 682 | /*printf ("%d ", isTransient ? LM-best_level : best_level);*/ |
| 683 | /* metric is in Q1 to be able to select the mid-point (-0.5) for narrower bands */ |
| 684 | if (isTransient) |
| 685 | metric[i] = 2*best_level; |
| 686 | else |
| 687 | metric[i] = -2*best_level; |
| 688 | /* For bands that can't be split to -1, set the metric to the half-way point to avoid |
| 689 | biasing the decision */ |
| 690 | if (narrow && (metric[i]==0 || metric[i]==-2*LM)) |
| 691 | metric[i]-=1; |
| 692 | /*printf("%d ", metric[i]/2 + (!isTransient)*LM);*/ |
| 693 | } |
| 694 | /*printf("\n");*/ |
| 695 | /* Search for the optimal tf resolution, including tf_select */ |
| 696 | tf_select = 0; |
| 697 | for (sel=0;sel<2;sel++) |
| 698 | { |
| 699 | cost0 = importance[0]*abs(metric[0]-2*tf_select_table[LM][4*isTransient+2*sel+0]); |
| 700 | cost1 = importance[0]*abs(metric[0]-2*tf_select_table[LM][4*isTransient+2*sel+1]) + (isTransient ? 0 : lambda); |
| 701 | for (i=1;i<len;i++) |
| 702 | { |
| 703 | int curr0, curr1; |
| 704 | curr0 = IMIN(cost0, cost1 + lambda)((cost0) < (cost1 + lambda) ? (cost0) : (cost1 + lambda)); |
| 705 | curr1 = IMIN(cost0 + lambda, cost1)((cost0 + lambda) < (cost1) ? (cost0 + lambda) : (cost1)); |
| 706 | cost0 = curr0 + importance[i]*abs(metric[i]-2*tf_select_table[LM][4*isTransient+2*sel+0]); |
| 707 | cost1 = curr1 + importance[i]*abs(metric[i]-2*tf_select_table[LM][4*isTransient+2*sel+1]); |
| 708 | } |
| 709 | cost0 = IMIN(cost0, cost1)((cost0) < (cost1) ? (cost0) : (cost1)); |
| 710 | selcost[sel]=cost0; |
| 711 | } |
| 712 | /* For now, we're conservative and only allow tf_select=1 for transients. |
| 713 | * If tests confirm it's useful for non-transients, we could allow it. */ |
| 714 | if (selcost[1]<selcost[0] && isTransient) |
| 715 | tf_select=1; |
| 716 | cost0 = importance[0]*abs(metric[0]-2*tf_select_table[LM][4*isTransient+2*tf_select+0]); |
| 717 | cost1 = importance[0]*abs(metric[0]-2*tf_select_table[LM][4*isTransient+2*tf_select+1]) + (isTransient ? 0 : lambda); |
| 718 | /* Viterbi forward pass */ |
| 719 | for (i=1;i<len;i++) |
| 720 | { |
| 721 | int curr0, curr1; |
| 722 | int from0, from1; |
| 723 | |
| 724 | from0 = cost0; |
| 725 | from1 = cost1 + lambda; |
| 726 | if (from0 < from1) |
| 727 | { |
| 728 | curr0 = from0; |
| 729 | path0[i]= 0; |
| 730 | } else { |
| 731 | curr0 = from1; |
| 732 | path0[i]= 1; |
| 733 | } |
| 734 | |
| 735 | from0 = cost0 + lambda; |
| 736 | from1 = cost1; |
| 737 | if (from0 < from1) |
| 738 | { |
| 739 | curr1 = from0; |
| 740 | path1[i]= 0; |
| 741 | } else { |
| 742 | curr1 = from1; |
| 743 | path1[i]= 1; |
| 744 | } |
| 745 | cost0 = curr0 + importance[i]*abs(metric[i]-2*tf_select_table[LM][4*isTransient+2*tf_select+0]); |
| 746 | cost1 = curr1 + importance[i]*abs(metric[i]-2*tf_select_table[LM][4*isTransient+2*tf_select+1]); |
| 747 | } |
| 748 | tf_res[len-1] = cost0 < cost1 ? 0 : 1; |
| 749 | /* Viterbi backward pass to check the decisions */ |
| 750 | for (i=len-2;i>=0;i--) |
| 751 | { |
| 752 | if (tf_res[i+1] == 1) |
| 753 | tf_res[i] = path1[i+1]; |
| 754 | else |
| 755 | tf_res[i] = path0[i+1]; |
| 756 | } |
| 757 | /*printf("%d %f\n", *tf_sum, tf_estimate);*/ |
| 758 | RESTORE_STACK; |
| 759 | #ifdef FUZZING |
| 760 | tf_select = rand()&0x1; |
| 761 | tf_res[0] = rand()&0x1; |
| 762 | for (i=1;i<len;i++) |
| 763 | tf_res[i] = tf_res[i-1] ^ ((rand()&0xF) == 0); |
| 764 | #endif |
| 765 | return tf_select; |
| 766 | } |
| 767 | |
| 768 | static void tf_encode(int start, int end, int isTransient, int *tf_res, int LM, int tf_select, ec_enc *enc) |
| 769 | { |
| 770 | int curr, i; |
| 771 | int tf_select_rsv; |
| 772 | int tf_changed; |
| 773 | int logp; |
| 774 | opus_uint32 budget; |
| 775 | opus_uint32 tell; |
| 776 | budget = enc->storage*8; |
| 777 | tell = ec_tell(enc); |
| 778 | logp = isTransient ? 2 : 4; |
| 779 | /* Reserve space to code the tf_select decision. */ |
| 780 | tf_select_rsv = LM>0 && tell+logp+1 <= budget; |
| 781 | budget -= tf_select_rsv; |
| 782 | curr = tf_changed = 0; |
| 783 | for (i=start;i<end;i++) |
| 784 | { |
| 785 | if (tell+logp<=budget) |
| 786 | { |
| 787 | ec_enc_bit_logp(enc, tf_res[i] ^ curr, logp); |
| 788 | tell = ec_tell(enc); |
| 789 | curr = tf_res[i]; |
| 790 | tf_changed |= curr; |
| 791 | } |
| 792 | else |
| 793 | tf_res[i] = curr; |
| 794 | logp = isTransient ? 4 : 5; |
| 795 | } |
| 796 | /* Only code tf_select if it would actually make a difference. */ |
| 797 | if (tf_select_rsv && |
| 798 | tf_select_table[LM][4*isTransient+0+tf_changed]!= |
| 799 | tf_select_table[LM][4*isTransient+2+tf_changed]) |
| 800 | ec_enc_bit_logp(enc, tf_select, 1); |
| 801 | else |
| 802 | tf_select = 0; |
| 803 | for (i=start;i<end;i++) |
| 804 | tf_res[i] = tf_select_table[LM][4*isTransient+2*tf_select+tf_res[i]]; |
| 805 | /*for(i=0;i<end;i++)printf("%d ", isTransient ? tf_res[i] : LM+tf_res[i]);printf("\n");*/ |
| 806 | } |
| 807 | |
| 808 | |
| 809 | static int alloc_trim_analysis(const CELTModeOpusCustomMode *m, const celt_norm *X, |
| 810 | const celt_glog *bandLogE, int end, int LM, int C, int N0, |
| 811 | AnalysisInfo *analysis, opus_val16 *stereo_saving, opus_val16 tf_estimate, |
| 812 | int intensity, celt_glog surround_trim, opus_int32 equiv_rate, int arch) |
| 813 | { |
| 814 | int i; |
| 815 | opus_val32 diff=0; |
| 816 | int c; |
| 817 | int trim_index; |
| 818 | opus_val16 trim = QCONST16(5.f, 8)(5.f); |
| 819 | opus_val16 logXC, logXC2; |
| 820 | /* At low bitrate, reducing the trim seems to help. At higher bitrates, it's less |
| 821 | clear what's best, so we're keeping it as it was before, at least for now. */ |
| 822 | if (equiv_rate < 64000) { |
| 823 | trim = QCONST16(4.f, 8)(4.f); |
| 824 | } else if (equiv_rate < 80000) { |
| 825 | opus_int32 frac = (equiv_rate-64000) >> 10; |
| 826 | trim = QCONST16(4.f, 8)(4.f) + QCONST16(1.f/16.f, 8)(1.f/16.f)*frac; |
| 827 | } |
| 828 | if (C==2) |
| 829 | { |
| 830 | opus_val16 sum = 0; /* Q10 */ |
| 831 | opus_val16 minXC; /* Q10 */ |
| 832 | /* Compute inter-channel correlation for low frequencies */ |
| 833 | for (i=0;i<8;i++) |
| 834 | { |
| 835 | opus_val32 partial; |
| 836 | partial = celt_inner_prod(&X[m->eBands[i]<<LM], &X[N0+(m->eBands[i]<<LM)],((*CELT_INNER_PROD_IMPL[(arch) & 7])(&X[m->eBands[ i]<<LM], &X[N0+(m->eBands[i]<<LM)], (m-> eBands[i+1]-m->eBands[i])<<LM)) |
| 837 | (m->eBands[i+1]-m->eBands[i])<<LM, arch)((*CELT_INNER_PROD_IMPL[(arch) & 7])(&X[m->eBands[ i]<<LM], &X[N0+(m->eBands[i]<<LM)], (m-> eBands[i+1]-m->eBands[i])<<LM)); |
| 838 | sum = ADD16(sum, EXTRACT16(SHR32(partial, 18)))((sum)+(((partial)))); |
| 839 | } |
| 840 | sum = MULT16_16_Q15(QCONST16(1.f/8, 15), sum)(((1.f/8))*(sum)); |
| 841 | sum = MIN16(QCONST16(1.f, 10), ABS16(sum))(((1.f)) < (((float)fabs(sum))) ? ((1.f)) : (((float)fabs( sum)))); |
| 842 | minXC = sum; |
| 843 | for (i=8;i<intensity;i++) |
| 844 | { |
| 845 | opus_val32 partial; |
| 846 | partial = celt_inner_prod(&X[m->eBands[i]<<LM], &X[N0+(m->eBands[i]<<LM)],((*CELT_INNER_PROD_IMPL[(arch) & 7])(&X[m->eBands[ i]<<LM], &X[N0+(m->eBands[i]<<LM)], (m-> eBands[i+1]-m->eBands[i])<<LM)) |
| 847 | (m->eBands[i+1]-m->eBands[i])<<LM, arch)((*CELT_INNER_PROD_IMPL[(arch) & 7])(&X[m->eBands[ i]<<LM], &X[N0+(m->eBands[i]<<LM)], (m-> eBands[i+1]-m->eBands[i])<<LM)); |
| 848 | minXC = MIN16(minXC, ABS16(EXTRACT16(SHR32(partial, 18))))((minXC) < (((float)fabs(((partial))))) ? (minXC) : (((float )fabs(((partial)))))); |
| 849 | } |
| 850 | minXC = MIN16(QCONST16(1.f, 10), ABS16(minXC))(((1.f)) < (((float)fabs(minXC))) ? ((1.f)) : (((float)fabs (minXC)))); |
| 851 | /*printf ("%f\n", sum);*/ |
| 852 | /* mid-side savings estimations based on the LF average*/ |
| 853 | logXC = celt_log2(QCONST32(1.001f, 20)-MULT16_16(sum, sum))((float)(1.442695040888963387*log((1.001f)-((opus_val32)(sum) *(opus_val32)(sum))))); |
| 854 | /* mid-side savings estimations based on min correlation */ |
| 855 | logXC2 = MAX16(HALF16(logXC), celt_log2(QCONST32(1.001f, 20)-MULT16_16(minXC, minXC)))(((.5f*(logXC))) > (((float)(1.442695040888963387*log((1.001f )-((opus_val32)(minXC)*(opus_val32)(minXC)))))) ? ((.5f*(logXC ))) : (((float)(1.442695040888963387*log((1.001f)-((opus_val32 )(minXC)*(opus_val32)(minXC))))))); |
| 856 | #ifdef FIXED_POINT |
| 857 | /* Compensate for Q20 vs Q14 input and convert output to Q8 */ |
| 858 | logXC = PSHR32(logXC-QCONST16(6.f, 10),10-8)(logXC-(6.f)); |
| 859 | logXC2 = PSHR32(logXC2-QCONST16(6.f, 10),10-8)(logXC2-(6.f)); |
| 860 | #endif |
| 861 | |
| 862 | trim += MAX16(-QCONST16(4.f, 8), MULT16_16_Q15(QCONST16(.75f,15),logXC))((-(4.f)) > ((((.75f))*(logXC))) ? (-(4.f)) : ((((.75f))*( logXC)))); |
| 863 | *stereo_saving = MIN16(*stereo_saving + QCONST16(0.25f, 8), -HALF16(logXC2))((*stereo_saving + (0.25f)) < (-(.5f*(logXC2))) ? (*stereo_saving + (0.25f)) : (-(.5f*(logXC2)))); |
| 864 | } |
| 865 | |
| 866 | /* Estimate spectral tilt */ |
| 867 | c=0; do { |
| 868 | for (i=0;i<end-1;i++) |
| 869 | { |
| 870 | diff += SHR32(bandLogE[i+c*m->nbEBands], 5)(bandLogE[i+c*m->nbEBands])*(opus_int32)(2+2*i-end); |
| 871 | } |
| 872 | } while (++c<C); |
| 873 | diff /= C*(end-1); |
| 874 | /*printf("%f\n", diff);*/ |
| 875 | trim -= MAX32(-QCONST16(2.f, 8), MIN32(QCONST16(2.f, 8), SHR32(diff+QCONST32(1.f, DB_SHIFT-5),DB_SHIFT-13)/6 ))((-(2.f)) > ((((2.f)) < ((diff+(1.f))/6) ? ((2.f)) : (( diff+(1.f))/6))) ? (-(2.f)) : ((((2.f)) < ((diff+(1.f))/6) ? ((2.f)) : ((diff+(1.f))/6)))); |
| 876 | trim -= SHR16(surround_trim, DB_SHIFT-8)(surround_trim); |
| 877 | trim -= 2*SHR16(tf_estimate, 14-8)(tf_estimate); |
| 878 | #ifndef DISABLE_FLOAT_API |
| 879 | if (analysis->valid) |
| 880 | { |
| 881 | trim -= MAX16(-QCONST16(2.f, 8), MIN16(QCONST16(2.f, 8),((-(2.f)) > ((((2.f)) < ((opus_val16)((2.f)*(analysis-> tonality_slope+.05f))) ? ((2.f)) : ((opus_val16)((2.f)*(analysis ->tonality_slope+.05f))))) ? (-(2.f)) : ((((2.f)) < ((opus_val16 )((2.f)*(analysis->tonality_slope+.05f))) ? ((2.f)) : ((opus_val16 )((2.f)*(analysis->tonality_slope+.05f)))))) |
| 882 | (opus_val16)(QCONST16(2.f, 8)*(analysis->tonality_slope+.05f))))((-(2.f)) > ((((2.f)) < ((opus_val16)((2.f)*(analysis-> tonality_slope+.05f))) ? ((2.f)) : ((opus_val16)((2.f)*(analysis ->tonality_slope+.05f))))) ? (-(2.f)) : ((((2.f)) < ((opus_val16 )((2.f)*(analysis->tonality_slope+.05f))) ? ((2.f)) : ((opus_val16 )((2.f)*(analysis->tonality_slope+.05f)))))); |
| 883 | } |
| 884 | #else |
| 885 | (void)analysis; |
| 886 | #endif |
| 887 | |
| 888 | #ifdef FIXED_POINT |
| 889 | trim_index = PSHR32(trim, 8)(trim); |
| 890 | #else |
| 891 | trim_index = (int)floor(.5f+trim); |
| 892 | #endif |
| 893 | trim_index = IMAX(0, IMIN(10, trim_index))((0) > (((10) < (trim_index) ? (10) : (trim_index))) ? ( 0) : (((10) < (trim_index) ? (10) : (trim_index)))); |
| 894 | /*printf("%d\n", trim_index);*/ |
| 895 | #ifdef FUZZING |
| 896 | trim_index = rand()%11; |
| 897 | #endif |
| 898 | return trim_index; |
| 899 | } |
| 900 | |
| 901 | static int stereo_analysis(const CELTModeOpusCustomMode *m, const celt_norm *X, |
| 902 | int LM, int N0) |
| 903 | { |
| 904 | int i; |
| 905 | int thetas; |
| 906 | opus_val32 sumLR = EPSILON1e-15f, sumMS = EPSILON1e-15f; |
| 907 | |
| 908 | /* Use the L1 norm to model the entropy of the L/R signal vs the M/S signal */ |
| 909 | for (i=0;i<13;i++) |
| 910 | { |
| 911 | int j; |
| 912 | for (j=m->eBands[i]<<LM;j<m->eBands[i+1]<<LM;j++) |
| 913 | { |
| 914 | opus_val32 L, R, M, S; |
| 915 | /* We cast to 32-bit first because of the -32768 case */ |
| 916 | L = EXTEND32(X[j])(X[j]); |
| 917 | R = EXTEND32(X[N0+j])(X[N0+j]); |
| 918 | M = ADD32(L, R)((L)+(R)); |
| 919 | S = SUB32(L, R)((L)-(R)); |
| 920 | sumLR = ADD32(sumLR, ADD32(ABS32(L), ABS32(R)))((sumLR)+(((((float)fabs(L)))+(((float)fabs(R)))))); |
| 921 | sumMS = ADD32(sumMS, ADD32(ABS32(M), ABS32(S)))((sumMS)+(((((float)fabs(M)))+(((float)fabs(S)))))); |
| 922 | } |
| 923 | } |
| 924 | sumMS = MULT16_32_Q15(QCONST16(0.707107f, 15), sumMS)(((0.707107f))*(sumMS)); |
| 925 | thetas = 13; |
| 926 | /* We don't need thetas for lower bands with LM<=1 */ |
| 927 | if (LM<=1) |
| 928 | thetas -= 8; |
| 929 | return MULT16_32_Q15((m->eBands[13]<<(LM+1))+thetas, sumMS)(((m->eBands[13]<<(LM+1))+thetas)*(sumMS)) |
| 930 | > MULT16_32_Q15(m->eBands[13]<<(LM+1), sumLR)((m->eBands[13]<<(LM+1))*(sumLR)); |
| 931 | } |
| 932 | |
| 933 | #define MSWAP(a,b)do {celt_glog tmp = a;a=b;b=tmp;} while(0) do {celt_glog tmp = a;a=b;b=tmp;} while(0) |
| 934 | static celt_glog median_of_5(const celt_glog *x) |
| 935 | { |
| 936 | celt_glog t0, t1, t2, t3, t4; |
| 937 | t2 = x[2]; |
| 938 | if (x[0] > x[1]) |
| 939 | { |
| 940 | t0 = x[1]; |
| 941 | t1 = x[0]; |
| 942 | } else { |
| 943 | t0 = x[0]; |
| 944 | t1 = x[1]; |
| 945 | } |
| 946 | if (x[3] > x[4]) |
| 947 | { |
| 948 | t3 = x[4]; |
| 949 | t4 = x[3]; |
| 950 | } else { |
| 951 | t3 = x[3]; |
| 952 | t4 = x[4]; |
| 953 | } |
| 954 | if (t0 > t3) |
| 955 | { |
| 956 | MSWAP(t0, t3)do {celt_glog tmp = t0;t0=t3;t3=tmp;} while(0); |
| 957 | MSWAP(t1, t4)do {celt_glog tmp = t1;t1=t4;t4=tmp;} while(0); |
| 958 | } |
| 959 | if (t2 > t1) |
| 960 | { |
| 961 | if (t1 < t3) |
| 962 | return MING(t2, t3)((t2) < (t3) ? (t2) : (t3)); |
| 963 | else |
| 964 | return MING(t4, t1)((t4) < (t1) ? (t4) : (t1)); |
| 965 | } else { |
| 966 | if (t2 < t3) |
| 967 | return MING(t1, t3)((t1) < (t3) ? (t1) : (t3)); |
| 968 | else |
| 969 | return MING(t2, t4)((t2) < (t4) ? (t2) : (t4)); |
| 970 | } |
| 971 | } |
| 972 | |
| 973 | static celt_glog median_of_3(const celt_glog *x) |
| 974 | { |
| 975 | celt_glog t0, t1, t2; |
| 976 | if (x[0] > x[1]) |
| 977 | { |
| 978 | t0 = x[1]; |
| 979 | t1 = x[0]; |
| 980 | } else { |
| 981 | t0 = x[0]; |
| 982 | t1 = x[1]; |
| 983 | } |
| 984 | t2 = x[2]; |
| 985 | if (t1 < t2) |
| 986 | return t1; |
| 987 | else if (t0 < t2) |
| 988 | return t2; |
| 989 | else |
| 990 | return t0; |
| 991 | } |
| 992 | |
| 993 | static celt_glog dynalloc_analysis(const celt_glog *bandLogE, const celt_glog *bandLogE2, const celt_glog *oldBandE, |
| 994 | int nbEBands, int start, int end, int C, int *offsets, int lsb_depth, const opus_int16 *logN, |
| 995 | int isTransient, int vbr, int constrained_vbr, const opus_int16 *eBands, int LM, |
| 996 | int effectiveBytes, opus_int32 *tot_boost_, int lfe, celt_glog *surround_dynalloc, |
| 997 | AnalysisInfo *analysis, int *importance, int *spread_weight, opus_val16 tone_freq, opus_val32 toneishness) |
| 998 | { |
| 999 | int i, c; |
| 1000 | opus_int32 tot_boost=0; |
| 1001 | celt_glog maxDepth; |
| 1002 | VARDECL(celt_glog, follower)celt_glog *follower; |
| 1003 | VARDECL(celt_glog, noise_floor)celt_glog *noise_floor; |
| 1004 | VARDECL(celt_glog, bandLogE3)celt_glog *bandLogE3; |
| 1005 | SAVE_STACK; |
| 1006 | ALLOC(follower, C*nbEBands, celt_glog)follower = ((celt_glog*)__builtin_alloca (sizeof(celt_glog)*( C*nbEBands))); |
| 1007 | ALLOC(noise_floor, C*nbEBands, celt_glog)noise_floor = ((celt_glog*)__builtin_alloca (sizeof(celt_glog )*(C*nbEBands))); |
| 1008 | ALLOC(bandLogE3, nbEBands, celt_glog)bandLogE3 = ((celt_glog*)__builtin_alloca (sizeof(celt_glog)* (nbEBands))); |
| 1009 | OPUS_CLEAR(offsets, nbEBands)(memset((offsets), 0, (nbEBands)*sizeof(*(offsets)))); |
| 1010 | /* Dynamic allocation code */ |
| 1011 | maxDepth=-GCONST(31.9f)(31.9f); |
| 1012 | for (i=0;i<end;i++) |
| 1013 | { |
| 1014 | /* Noise floor must take into account eMeans, the depth, the width of the bands |
| 1015 | and the preemphasis filter (approx. square of bark band ID) */ |
| 1016 | noise_floor[i] = GCONST(0.0625f)(0.0625f)*logN[i] |
| 1017 | +GCONST(.5f)(.5f)+SHL32(9-lsb_depth,DB_SHIFT)(9-lsb_depth)-SHL32(eMeans[i],DB_SHIFT-4)(eMeans[i]) |
| 1018 | +GCONST(.0062f)(.0062f)*(i+5)*(i+5); |
| 1019 | } |
| 1020 | c=0;do |
| 1021 | { |
| 1022 | for (i=0;i<end;i++) |
| 1023 | maxDepth = MAXG(maxDepth, bandLogE[c*nbEBands+i]-noise_floor[i])((maxDepth) > (bandLogE[c*nbEBands+i]-noise_floor[i]) ? (maxDepth ) : (bandLogE[c*nbEBands+i]-noise_floor[i])); |
| 1024 | } while (++c<C); |
| 1025 | { |
| 1026 | /* Compute a really simple masking model to avoid taking into account completely masked |
| 1027 | bands when computing the spreading decision. */ |
| 1028 | VARDECL(celt_glog, mask)celt_glog *mask; |
| 1029 | VARDECL(celt_glog, sig)celt_glog *sig; |
| 1030 | ALLOC(mask, nbEBands, celt_glog)mask = ((celt_glog*)__builtin_alloca (sizeof(celt_glog)*(nbEBands ))); |
| 1031 | ALLOC(sig, nbEBands, celt_glog)sig = ((celt_glog*)__builtin_alloca (sizeof(celt_glog)*(nbEBands ))); |
| 1032 | for (i=0;i<end;i++) |
| 1033 | mask[i] = bandLogE[i]-noise_floor[i]; |
| 1034 | if (C==2) |
| 1035 | { |
| 1036 | for (i=0;i<end;i++) |
| 1037 | mask[i] = MAXG(mask[i], bandLogE[nbEBands+i]-noise_floor[i])((mask[i]) > (bandLogE[nbEBands+i]-noise_floor[i]) ? (mask [i]) : (bandLogE[nbEBands+i]-noise_floor[i])); |
| 1038 | } |
| 1039 | OPUS_COPY(sig, mask, end)(memcpy((sig), (mask), (end)*sizeof(*(sig)) + 0*((sig)-(mask) ) )); |
| 1040 | for (i=1;i<end;i++) |
| 1041 | mask[i] = MAXG(mask[i], mask[i-1] - GCONST(2.f))((mask[i]) > (mask[i-1] - (2.f)) ? (mask[i]) : (mask[i-1] - (2.f))); |
| 1042 | for (i=end-2;i>=0;i--) |
| 1043 | mask[i] = MAXG(mask[i], mask[i+1] - GCONST(3.f))((mask[i]) > (mask[i+1] - (3.f)) ? (mask[i]) : (mask[i+1] - (3.f))); |
| 1044 | for (i=0;i<end;i++) |
| 1045 | { |
| 1046 | /* Compute SMR: Mask is never more than 72 dB below the peak and never below the noise floor.*/ |
| 1047 | celt_glog smr = sig[i]-MAXG(MAXG(0, maxDepth-GCONST(12.f)), mask[i])((((0) > (maxDepth-(12.f)) ? (0) : (maxDepth-(12.f)))) > (mask[i]) ? (((0) > (maxDepth-(12.f)) ? (0) : (maxDepth-( 12.f)))) : (mask[i])); |
| 1048 | /* Clamp SMR to make sure we're not shifting by something negative or too large. */ |
| 1049 | #ifdef FIXED_POINT |
| 1050 | /* FIXME: Use PSHR16() instead */ |
| 1051 | int shift = -PSHR32(MAXG(-GCONST(5.f), MING(0, smr)), DB_SHIFT)(((-(5.f)) > (((0) < (smr) ? (0) : (smr))) ? (-(5.f)) : (((0) < (smr) ? (0) : (smr))))); |
| 1052 | #else |
| 1053 | int shift = IMIN(5, IMAX(0, -(int)floor(.5f + smr)))((5) < (((0) > (-(int)floor(.5f + smr)) ? (0) : (-(int) floor(.5f + smr)))) ? (5) : (((0) > (-(int)floor(.5f + smr )) ? (0) : (-(int)floor(.5f + smr))))); |
| 1054 | #endif |
| 1055 | spread_weight[i] = 32 >> shift; |
| 1056 | } |
| 1057 | /*for (i=0;i<end;i++) |
| 1058 | printf("%d ", spread_weight[i]); |
| 1059 | printf("\n");*/ |
| 1060 | } |
| 1061 | /* Make sure that dynamic allocation can't make us bust the budget. |
| 1062 | We enable the feature starting at 24 kb/s for 20-ms frames |
| 1063 | and 96 kb/s for 2.5 ms frames. */ |
| 1064 | if (effectiveBytes >= (30 + 5*LM) && !lfe) |
| 1065 | { |
| 1066 | int last=0; |
| 1067 | c=0;do |
| 1068 | { |
| 1069 | celt_glog offset; |
| 1070 | celt_glog tmp; |
| 1071 | celt_glog *f; |
| 1072 | OPUS_COPY(bandLogE3, &bandLogE2[c*nbEBands], end)(memcpy((bandLogE3), (&bandLogE2[c*nbEBands]), (end)*sizeof (*(bandLogE3)) + 0*((bandLogE3)-(&bandLogE2[c*nbEBands])) )); |
| 1073 | if (LM==0) { |
| 1074 | /* For 2.5 ms frames, the first 8 bands have just one bin, so the |
| 1075 | energy is highly unreliable (high variance). For that reason, |
| 1076 | we take the max with the previous energy so that at least 2 bins |
| 1077 | are getting used. */ |
| 1078 | for (i=0;i<IMIN(8,end)((8) < (end) ? (8) : (end));i++) bandLogE3[i] = MAXG(bandLogE2[c*nbEBands+i], oldBandE[c*nbEBands+i])((bandLogE2[c*nbEBands+i]) > (oldBandE[c*nbEBands+i]) ? (bandLogE2 [c*nbEBands+i]) : (oldBandE[c*nbEBands+i])); |
| 1079 | } |
| 1080 | f = &follower[c*nbEBands]; |
| 1081 | f[0] = bandLogE3[0]; |
| 1082 | for (i=1;i<end;i++) |
| 1083 | { |
| 1084 | /* The last band to be at least 3 dB higher than the previous one |
| 1085 | is the last we'll consider. Otherwise, we run into problems on |
| 1086 | bandlimited signals. */ |
| 1087 | if (bandLogE3[i] > bandLogE3[i-1]+GCONST(.5f)(.5f)) |
| 1088 | last=i; |
| 1089 | f[i] = MING(f[i-1]+GCONST(1.5f), bandLogE3[i])((f[i-1]+(1.5f)) < (bandLogE3[i]) ? (f[i-1]+(1.5f)) : (bandLogE3 [i])); |
| 1090 | } |
| 1091 | for (i=last-1;i>=0;i--) |
| 1092 | f[i] = MING(f[i], MING(f[i+1]+GCONST(2.f), bandLogE3[i]))((f[i]) < (((f[i+1]+(2.f)) < (bandLogE3[i]) ? (f[i+1]+( 2.f)) : (bandLogE3[i]))) ? (f[i]) : (((f[i+1]+(2.f)) < (bandLogE3 [i]) ? (f[i+1]+(2.f)) : (bandLogE3[i])))); |
| 1093 | |
| 1094 | /* Combine with a median filter to avoid dynalloc triggering unnecessarily. |
| 1095 | The "offset" value controls how conservative we are -- a higher offset |
| 1096 | reduces the impact of the median filter and makes dynalloc use more bits. */ |
| 1097 | offset = GCONST(1.f)(1.f); |
| 1098 | for (i=2;i<end-2;i++) |
| 1099 | f[i] = MAXG(f[i], median_of_5(&bandLogE3[i-2])-offset)((f[i]) > (median_of_5(&bandLogE3[i-2])-offset) ? (f[i ]) : (median_of_5(&bandLogE3[i-2])-offset)); |
| 1100 | tmp = median_of_3(&bandLogE3[0])-offset; |
| 1101 | f[0] = MAXG(f[0], tmp)((f[0]) > (tmp) ? (f[0]) : (tmp)); |
| 1102 | f[1] = MAXG(f[1], tmp)((f[1]) > (tmp) ? (f[1]) : (tmp)); |
| 1103 | tmp = median_of_3(&bandLogE3[end-3])-offset; |
| 1104 | f[end-2] = MAXG(f[end-2], tmp)((f[end-2]) > (tmp) ? (f[end-2]) : (tmp)); |
| 1105 | f[end-1] = MAXG(f[end-1], tmp)((f[end-1]) > (tmp) ? (f[end-1]) : (tmp)); |
| 1106 | |
| 1107 | for (i=0;i<end;i++) |
| 1108 | f[i] = MAXG(f[i], noise_floor[i])((f[i]) > (noise_floor[i]) ? (f[i]) : (noise_floor[i])); |
| 1109 | } while (++c<C); |
| 1110 | if (C==2) |
| 1111 | { |
| 1112 | for (i=start;i<end;i++) |
| 1113 | { |
| 1114 | /* Consider 24 dB "cross-talk" */ |
| 1115 | follower[nbEBands+i] = MAXG(follower[nbEBands+i], follower[ i]-GCONST(4.f))((follower[nbEBands+i]) > (follower[ i]-(4.f)) ? (follower [nbEBands+i]) : (follower[ i]-(4.f))); |
| 1116 | follower[ i] = MAXG(follower[ i], follower[nbEBands+i]-GCONST(4.f))((follower[ i]) > (follower[nbEBands+i]-(4.f)) ? (follower [ i]) : (follower[nbEBands+i]-(4.f))); |
| 1117 | follower[i] = HALF32(MAXG(0, bandLogE[i]-follower[i]) + MAXG(0, bandLogE[nbEBands+i]-follower[nbEBands+i]))(.5f*(((0) > (bandLogE[i]-follower[i]) ? (0) : (bandLogE[i ]-follower[i])) + ((0) > (bandLogE[nbEBands+i]-follower[nbEBands +i]) ? (0) : (bandLogE[nbEBands+i]-follower[nbEBands+i])))); |
| 1118 | } |
| 1119 | } else { |
| 1120 | for (i=start;i<end;i++) |
| 1121 | { |
| 1122 | follower[i] = MAXG(0, bandLogE[i]-follower[i])((0) > (bandLogE[i]-follower[i]) ? (0) : (bandLogE[i]-follower [i])); |
| 1123 | } |
| 1124 | } |
| 1125 | for (i=start;i<end;i++) |
| 1126 | follower[i] = MAXG(follower[i], surround_dynalloc[i])((follower[i]) > (surround_dynalloc[i]) ? (follower[i]) : ( surround_dynalloc[i])); |
| 1127 | for (i=start;i<end;i++) |
| 1128 | { |
| 1129 | #ifdef FIXED_POINT |
| 1130 | importance[i] = PSHR32(13*celt_exp2_db(MING(follower[i], GCONST(4.f))), 16)(13*((float)exp(0.6931471805599453094*(((follower[i]) < (( 4.f)) ? (follower[i]) : ((4.f))))))); |
| 1131 | #else |
| 1132 | importance[i] = (int)floor(.5f+13*celt_exp2_db(MING(follower[i], GCONST(4.f)))((float)exp(0.6931471805599453094*(((follower[i]) < ((4.f) ) ? (follower[i]) : ((4.f))))))); |
| 1133 | #endif |
| 1134 | } |
| 1135 | /* For non-transient CBR/CVBR frames, halve the dynalloc contribution */ |
| 1136 | if ((!vbr || constrained_vbr)&&!isTransient) |
| 1137 | { |
| 1138 | for (i=start;i<end;i++) |
| 1139 | follower[i] = HALF32(follower[i])(.5f*(follower[i])); |
| 1140 | } |
| 1141 | for (i=start;i<end;i++) |
| 1142 | { |
| 1143 | if (i<8) |
| 1144 | follower[i] *= 2; |
| 1145 | if (i>=12) |
| 1146 | follower[i] = HALF32(follower[i])(.5f*(follower[i])); |
| 1147 | } |
| 1148 | /* Compensate for Opus' under-allocation on tones. */ |
| 1149 | if (toneishness > QCONST32(.98f, 29)(.98f)) { |
| 1150 | #ifdef FIXED_POINT |
| 1151 | int freq_bin = PSHR32(MULT16_16(tone_freq, QCONST16(120/M_PI, 9)), 13+9)(((opus_val32)(tone_freq)*(opus_val32)((120/3.14159265358979323846 )))); |
| 1152 | #else |
| 1153 | int freq_bin = (int)floor(.5 + tone_freq*120/M_PI3.14159265358979323846); |
| 1154 | #endif |
| 1155 | for (i=start;i<end;i++) { |
| 1156 | if (freq_bin >= eBands[i] && freq_bin <= eBands[i+1]) follower[i] += GCONST(2.f)(2.f); |
| 1157 | if (freq_bin >= eBands[i]-1 && freq_bin <= eBands[i+1]+1) follower[i] += GCONST(1.f)(1.f); |
| 1158 | if (freq_bin >= eBands[i]-2 && freq_bin <= eBands[i+1]+2) follower[i] += GCONST(1.f)(1.f); |
| 1159 | if (freq_bin >= eBands[i]-3 && freq_bin <= eBands[i+1]+3) follower[i] += GCONST(.5f)(.5f); |
| 1160 | } |
| 1161 | } |
| 1162 | #ifdef DISABLE_FLOAT_API |
| 1163 | (void)analysis; |
| 1164 | #else |
| 1165 | if (analysis->valid) |
| 1166 | { |
| 1167 | for (i=start;i<IMIN(LEAK_BANDS, end)((19) < (end) ? (19) : (end));i++) |
| 1168 | follower[i] = follower[i] + GCONST(1.f/64.f)(1.f/64.f)*analysis->leak_boost[i]; |
| 1169 | } |
| 1170 | #endif |
| 1171 | for (i=start;i<end;i++) |
| 1172 | { |
| 1173 | int width; |
| 1174 | int boost; |
| 1175 | int boost_bits; |
| 1176 | |
| 1177 | follower[i] = MING(follower[i], GCONST(4))((follower[i]) < ((4)) ? (follower[i]) : ((4))); |
| 1178 | |
| 1179 | follower[i] = SHR32(follower[i], 8)(follower[i]); |
| 1180 | width = C*(eBands[i+1]-eBands[i])<<LM; |
| 1181 | if (width<6) |
| 1182 | { |
| 1183 | boost = (int)SHR32(follower[i],DB_SHIFT-8)(follower[i]); |
| 1184 | boost_bits = boost*width<<BITRES3; |
| 1185 | } else if (width > 48) { |
| 1186 | boost = (int)SHR32(follower[i]*8,DB_SHIFT-8)(follower[i]*8); |
| 1187 | boost_bits = (boost*width<<BITRES3)/8; |
| 1188 | } else { |
| 1189 | boost = (int)SHR32(follower[i]*width/6,DB_SHIFT-8)(follower[i]*width/6); |
| 1190 | boost_bits = boost*6<<BITRES3; |
| 1191 | } |
| 1192 | /* For CBR and non-transient CVBR frames, limit dynalloc to 2/3 of the bits */ |
| 1193 | if ((!vbr || (constrained_vbr&&!isTransient)) |
| 1194 | && (tot_boost+boost_bits)>>BITRES3>>3 > 2*effectiveBytes/3) |
| 1195 | { |
| 1196 | opus_int32 cap = ((2*effectiveBytes/3)<<BITRES3<<3); |
| 1197 | offsets[i] = cap-tot_boost; |
| 1198 | tot_boost = cap; |
| 1199 | break; |
| 1200 | } else { |
| 1201 | offsets[i] = boost; |
| 1202 | tot_boost += boost_bits; |
| 1203 | } |
| 1204 | } |
| 1205 | } else { |
| 1206 | for (i=start;i<end;i++) |
| 1207 | importance[i] = 13; |
| 1208 | } |
| 1209 | *tot_boost_ = tot_boost; |
| 1210 | RESTORE_STACK; |
| 1211 | return maxDepth; |
| 1212 | } |
| 1213 | |
| 1214 | #ifdef FIXED_POINT |
| 1215 | void normalize_tone_input(opus_val16 *x, int len) { |
| 1216 | opus_val32 ac0=len; |
| 1217 | int i; |
| 1218 | int shift; |
| 1219 | for (i=0;i<len;i++) { |
| 1220 | ac0 = ADD32(ac0, SHR32(MULT16_16(x[i], x[i]), 10))((ac0)+((((opus_val32)(x[i])*(opus_val32)(x[i]))))); |
| 1221 | } |
| 1222 | shift = 5 - (28-celt_ilog2(ac0))/2; |
| 1223 | if (shift > 0) { |
| 1224 | for (i=0;i<len;i++) { |
| 1225 | x[i] = PSHR32(x[i], shift)(x[i]); |
| 1226 | } |
| 1227 | } |
| 1228 | } |
| 1229 | int acos_approx(opus_val32 x) { |
| 1230 | opus_val16 x14; |
| 1231 | opus_val32 tmp; |
| 1232 | int flip = x<0; |
| 1233 | x = abs(x); |
| 1234 | x14 = x>>15; |
| 1235 | tmp = (762*x14>>14)-3308; |
| 1236 | tmp = (tmp*x14>>14)+25726; |
| 1237 | tmp = tmp*celt_sqrt(IMAX(0, (1<<30) - (x<<1)))((float)sqrt(((0) > ((1<<30) - (x<<1)) ? (0) : ((1<<30) - (x<<1)))))>>16; |
| 1238 | if (flip) tmp = 25736 - tmp; |
| 1239 | return tmp; |
| 1240 | } |
| 1241 | #endif |
| 1242 | |
| 1243 | /* Compute the LPC coefficients using a least-squares fit for both forward and backward prediction. */ |
| 1244 | static int tone_lpc(const opus_val16 *x, int len, int delay, opus_val32 *lpc) { |
| 1245 | int i; |
| 1246 | opus_val32 r00=0, r01=0, r11=0, r02=0, r12=0, r22=0; |
| 1247 | opus_val32 edges; |
| 1248 | opus_val32 num0, num1, den; |
| 1249 | celt_assert(len > 2*delay){if (!(len > 2*delay)) {celt_fatal("assertion failed: " "len > 2*delay" , "/root/firefox-clang/media/libopus/celt/celt_encoder.c", 1249 );}}; |
| 1250 | /* Compute correlations as if using the forward prediction covariance method. */ |
| 1251 | for (i=0;i<len-2*delay;i++) { |
| 1252 | r00 += MULT16_16(x[i],x[i])((opus_val32)(x[i])*(opus_val32)(x[i])); |
| 1253 | r01 += MULT16_16(x[i],x[i+delay])((opus_val32)(x[i])*(opus_val32)(x[i+delay])); |
| 1254 | r02 += MULT16_16(x[i],x[i+2*delay])((opus_val32)(x[i])*(opus_val32)(x[i+2*delay])); |
| 1255 | } |
| 1256 | edges = 0; |
| 1257 | for (i=0;i<delay;i++) edges += MULT16_16(x[len+i-2*delay],x[len+i-2*delay])((opus_val32)(x[len+i-2*delay])*(opus_val32)(x[len+i-2*delay] )) - MULT16_16(x[i],x[i])((opus_val32)(x[i])*(opus_val32)(x[i])); |
| 1258 | r11 = r00+edges; |
| 1259 | edges = 0; |
| 1260 | for (i=0;i<delay;i++) edges += MULT16_16(x[len+i-delay],x[len+i-delay])((opus_val32)(x[len+i-delay])*(opus_val32)(x[len+i-delay])) - MULT16_16(x[i+delay],x[i+delay])((opus_val32)(x[i+delay])*(opus_val32)(x[i+delay])); |
| 1261 | r22 = r11+edges; |
| 1262 | edges = 0; |
| 1263 | for (i=0;i<delay;i++) edges += MULT16_16(x[len+i-2*delay],x[len+i-delay])((opus_val32)(x[len+i-2*delay])*(opus_val32)(x[len+i-delay])) - MULT16_16(x[i],x[i+delay])((opus_val32)(x[i])*(opus_val32)(x[i+delay])); |
| 1264 | r12 = r01+edges; |
| 1265 | /* Reverse and sum to get the backward contribution. */ |
| 1266 | { |
| 1267 | opus_val32 R00, R01, R11, R02, R12, R22; |
| 1268 | R00 = r00 + r22; |
| 1269 | R01 = r01 + r12; |
| 1270 | R11 = 2*r11; |
| 1271 | R02 = 2*r02; |
| 1272 | R12 = r12 + r01; |
| 1273 | R22 = r00 + r22; |
| 1274 | r00 = R00; |
| 1275 | r01 = R01; |
| 1276 | r11 = R11; |
| 1277 | r02 = R02; |
| 1278 | r12 = R12; |
| 1279 | r22 = R22; |
Value stored to 'r22' is never read | |
| 1280 | } |
| 1281 | /* Solve A*x=b, where A=[r00, r01; r01, r11] and b=[r02; r12]. */ |
| 1282 | den = MULT32_32_Q31(r00,r11)((r00)*(r11)) - MULT32_32_Q31(r01,r01)((r01)*(r01)); |
| 1283 | #ifdef FIXED_POINT |
| 1284 | if (den <= SHR32(MULT32_32_Q31(r00,r11), 10)(((r00)*(r11)))) return 1; |
| 1285 | #else |
| 1286 | if (den < .001f*MULT32_32_Q31(r00,r11)((r00)*(r11))) return 1; |
| 1287 | #endif |
| 1288 | num1 = MULT32_32_Q31(r02,r11)((r02)*(r11)) - MULT32_32_Q31(r01,r12)((r01)*(r12)); |
| 1289 | if (num1 >= den) lpc[1] = QCONST32(1.f, 29)(1.f); |
| 1290 | else if (num1 <= -den) lpc[1] = -QCONST32(1.f, 29)(1.f); |
| 1291 | else lpc[1] = frac_div32_q29(num1, den)((float)(num1)/(den)); |
| 1292 | num0 = MULT32_32_Q31(r00,r12)((r00)*(r12)) - MULT32_32_Q31(r02,r01)((r02)*(r01)); |
| 1293 | if (HALF32(num0)(.5f*(num0)) >= den) lpc[0] = QCONST32(1.999999f, 29)(1.999999f); |
| 1294 | else if (HALF32(num0)(.5f*(num0)) <= -den) lpc[0] = -QCONST32(1.999999f, 29)(1.999999f); |
| 1295 | else lpc[0] = frac_div32_q29(num0, den)((float)(num0)/(den)); |
| 1296 | /*printf("%f %f\n", lpc[0], lpc[1]);*/ |
| 1297 | return 0; |
| 1298 | } |
| 1299 | |
| 1300 | /* Detects pure of nearly pure tones so we can prevent them from causing problems with the encoder. */ |
| 1301 | static opus_val16 tone_detect(const celt_sig *in, int CC, int N, opus_val32 *toneishness, opus_int32 Fs) { |
| 1302 | int i; |
| 1303 | int delay = 1; |
| 1304 | int fail; |
| 1305 | opus_val32 lpc[2]; |
| 1306 | opus_val16 freq; |
| 1307 | VARDECL(opus_val16, x)opus_val16 *x; |
| 1308 | ALLOC(x, N, opus_val16)x = ((opus_val16*)__builtin_alloca (sizeof(opus_val16)*(N))); |
| 1309 | /* Shift by SIG_SHIFT+1 (+2 for stereo) to account for HF gain of the preemphasis filter. */ |
| 1310 | if (CC==2) { |
| 1311 | for (i=0;i<N;i++) x[i] = PSHR32(ADD32(in[i], in[i+N]), SIG_SHIFT+3)(((in[i])+(in[i+N]))); |
| 1312 | } else { |
| 1313 | for (i=0;i<N;i++) x[i] = PSHR32(in[i], SIG_SHIFT+2)(in[i]); |
| 1314 | } |
| 1315 | #ifdef FIXED_POINT |
| 1316 | normalize_tone_input(x, N); |
| 1317 | #endif |
| 1318 | fail = tone_lpc(x, N, delay, lpc); |
| 1319 | /* If our LPC filter resonates too close to DC, retry the analysis with down-sampling. */ |
| 1320 | while (delay <= Fs/3000 && (fail || (lpc[0] > QCONST32(1.f, 29)(1.f) && lpc[1] < 0))) { |
| 1321 | delay *= 2; |
| 1322 | fail = tone_lpc(x, N, delay, lpc); |
| 1323 | } |
| 1324 | /* Check that our filter has complex roots. */ |
| 1325 | if (!fail && MULT32_32_Q31(lpc[0],lpc[0])((lpc[0])*(lpc[0])) + MULT32_32_Q31(QCONST32(3.999999, 29), lpc[1])(((3.999999))*(lpc[1])) < 0) { |
| 1326 | /* Squared radius of the poles. */ |
| 1327 | *toneishness = -lpc[1]; |
| 1328 | #ifdef FIXED_POINT |
| 1329 | freq = acos_approx(lpc[0]>>1)/delay; |
| 1330 | #else |
| 1331 | freq = acos(.5f*lpc[0])/delay; |
| 1332 | #endif |
| 1333 | } else { |
| 1334 | freq = -1; |
| 1335 | *toneishness=0; |
| 1336 | } |
| 1337 | /*printf("%f %f %f %f\n", freq, lpc[0], lpc[1], *toneishness);*/ |
| 1338 | return freq; |
| 1339 | } |
| 1340 | |
| 1341 | static int run_prefilter(CELTEncoderOpusCustomEncoder *st, celt_sig *in, celt_sig *prefilter_mem, int CC, int N, |
| 1342 | int prefilter_tapset, int *pitch, opus_val16 *gain, int *qgain, int enabled, opus_val16 tf_estimate, int nbAvailableBytes, AnalysisInfo *analysis, opus_val16 tone_freq, opus_val32 toneishness) |
| 1343 | { |
| 1344 | int c; |
| 1345 | VARDECL(celt_sig, _pre)celt_sig *_pre; |
| 1346 | celt_sig *pre[2]; |
| 1347 | const CELTModeOpusCustomMode *mode; |
| 1348 | int pitch_index; |
| 1349 | opus_val16 gain1; |
| 1350 | opus_val16 pf_threshold; |
| 1351 | int pf_on; |
| 1352 | int qg; |
| 1353 | int overlap; |
| 1354 | opus_val32 before[2]={0}, after[2]={0}; |
| 1355 | int cancel_pitch=0; |
| 1356 | SAVE_STACK; |
| 1357 | |
| 1358 | mode = st->mode; |
| 1359 | overlap = mode->overlap; |
| 1360 | ALLOC(_pre, CC*(N+COMBFILTER_MAXPERIOD), celt_sig)_pre = ((celt_sig*)__builtin_alloca (sizeof(celt_sig)*(CC*(N+ 1024)))); |
| 1361 | |
| 1362 | pre[0] = _pre; |
| 1363 | pre[1] = _pre + (N+COMBFILTER_MAXPERIOD1024); |
| 1364 | |
| 1365 | |
| 1366 | c=0; do { |
| 1367 | OPUS_COPY(pre[c], prefilter_mem+c*COMBFILTER_MAXPERIOD, COMBFILTER_MAXPERIOD)(memcpy((pre[c]), (prefilter_mem+c*1024), (1024)*sizeof(*(pre [c])) + 0*((pre[c])-(prefilter_mem+c*1024)) )); |
| 1368 | OPUS_COPY(pre[c]+COMBFILTER_MAXPERIOD, in+c*(N+overlap)+overlap, N)(memcpy((pre[c]+1024), (in+c*(N+overlap)+overlap), (N)*sizeof (*(pre[c]+1024)) + 0*((pre[c]+1024)-(in+c*(N+overlap)+overlap )) )); |
| 1369 | } while (++c<CC); |
| 1370 | |
| 1371 | if (enabled) |
| 1372 | { |
| 1373 | VARDECL(opus_val16, pitch_buf)opus_val16 *pitch_buf; |
| 1374 | ALLOC(pitch_buf, (COMBFILTER_MAXPERIOD+N)>>1, opus_val16)pitch_buf = ((opus_val16*)__builtin_alloca (sizeof(opus_val16 )*((1024 +N)>>1))); |
| 1375 | |
| 1376 | pitch_downsample(pre, pitch_buf, COMBFILTER_MAXPERIOD1024+N, CC, st->arch); |
| 1377 | /* Don't search for the fir last 1.5 octave of the range because |
| 1378 | there's too many false-positives due to short-term correlation */ |
| 1379 | pitch_search(pitch_buf+(COMBFILTER_MAXPERIOD1024>>1), pitch_buf, N, |
| 1380 | COMBFILTER_MAXPERIOD1024-3*COMBFILTER_MINPERIOD15, &pitch_index, |
| 1381 | st->arch); |
| 1382 | pitch_index = COMBFILTER_MAXPERIOD1024-pitch_index; |
| 1383 | |
| 1384 | gain1 = remove_doubling(pitch_buf, COMBFILTER_MAXPERIOD1024, COMBFILTER_MINPERIOD15, |
| 1385 | N, &pitch_index, st->prefilter_period, st->prefilter_gain, st->arch); |
| 1386 | if (pitch_index > COMBFILTER_MAXPERIOD1024-2) |
| 1387 | pitch_index = COMBFILTER_MAXPERIOD1024-2; |
| 1388 | gain1 = MULT16_16_Q15(QCONST16(.7f,15),gain1)(((.7f))*(gain1)); |
| 1389 | /* If we detect that the signal is dominated by a single tone, don't rely on the standard pitch |
| 1390 | estimator, as it can become unreliable. */ |
| 1391 | if (toneishness > QCONST32(.99f, 29)(.99f)) { |
| 1392 | /* If the pitch is too high for our post-filter, apply pitch doubling until |
| 1393 | we can get something that fits (not ideal, but better than nothing). */ |
| 1394 | while (tone_freq >= QCONST16(0.39f, 13)(0.39f)) tone_freq/=2; |
| 1395 | if (tone_freq > QCONST16(0.006148f, 13)(0.006148f)) { |
| 1396 | #ifdef FIXED_POINT |
| 1397 | pitch_index = IMIN(51472/tone_freq, COMBFILTER_MAXPERIOD-2)((51472/tone_freq) < (1024 -2) ? (51472/tone_freq) : (1024 -2)); |
| 1398 | #else |
| 1399 | pitch_index = IMIN((int)floor(.5+2.f*M_PI/tone_freq), COMBFILTER_MAXPERIOD-2)(((int)floor(.5+2.f*3.14159265358979323846/tone_freq)) < ( 1024 -2) ? ((int)floor(.5+2.f*3.14159265358979323846/tone_freq )) : (1024 -2)); |
| 1400 | #endif |
| 1401 | } else { |
| 1402 | /* If the pitch is too low, using a very high pitch will actually give us an improvement |
| 1403 | due to the DC component of the filter that will be close to our tone. Again, not ideal, |
| 1404 | but if we only have a single tone, it's better than nothing. */ |
| 1405 | pitch_index = COMBFILTER_MINPERIOD15; |
| 1406 | } |
| 1407 | gain1 = QCONST16(.75f, 15)(.75f); |
| 1408 | } |
| 1409 | /*printf("%d %d %f %f\n", pitch_change, pitch_index, gain1, st->analysis.tonality);*/ |
| 1410 | if (st->loss_rate>2) |
| 1411 | gain1 = HALF32(gain1)(.5f*(gain1)); |
| 1412 | if (st->loss_rate>4) |
| 1413 | gain1 = HALF32(gain1)(.5f*(gain1)); |
| 1414 | if (st->loss_rate>8) |
| 1415 | gain1 = 0; |
| 1416 | } else { |
| 1417 | gain1 = 0; |
| 1418 | pitch_index = COMBFILTER_MINPERIOD15; |
| 1419 | } |
| 1420 | #ifndef DISABLE_FLOAT_API |
| 1421 | if (analysis->valid) |
| 1422 | gain1 = (opus_val16)(gain1 * analysis->max_pitch_ratio); |
| 1423 | #else |
| 1424 | (void)analysis; |
| 1425 | #endif |
| 1426 | /* Gain threshold for enabling the prefilter/postfilter */ |
| 1427 | pf_threshold = QCONST16(.2f,15)(.2f); |
| 1428 | |
| 1429 | /* Adjusting the threshold based on rate and continuity */ |
| 1430 | if (abs(pitch_index-st->prefilter_period)*10>pitch_index) |
| 1431 | { |
| 1432 | pf_threshold += QCONST16(.2f,15)(.2f); |
| 1433 | /* Completely disable the prefilter on strong transients without continuity. */ |
| 1434 | if (tf_estimate > QCONST16(.98f, 14)(.98f)) |
| 1435 | gain1 = 0; |
| 1436 | } |
| 1437 | if (nbAvailableBytes<25) |
| 1438 | pf_threshold += QCONST16(.1f,15)(.1f); |
| 1439 | if (nbAvailableBytes<35) |
| 1440 | pf_threshold += QCONST16(.1f,15)(.1f); |
| 1441 | if (st->prefilter_gain > QCONST16(.4f,15)(.4f)) |
| 1442 | pf_threshold -= QCONST16(.1f,15)(.1f); |
| 1443 | if (st->prefilter_gain > QCONST16(.55f,15)(.55f)) |
| 1444 | pf_threshold -= QCONST16(.1f,15)(.1f); |
| 1445 | |
| 1446 | /* Hard threshold at 0.2 */ |
| 1447 | pf_threshold = MAX16(pf_threshold, QCONST16(.2f,15))((pf_threshold) > ((.2f)) ? (pf_threshold) : ((.2f))); |
| 1448 | if (gain1<pf_threshold) |
| 1449 | { |
| 1450 | gain1 = 0; |
| 1451 | pf_on = 0; |
| 1452 | qg = 0; |
| 1453 | } else { |
| 1454 | /*This block is not gated by a total bits check only because |
| 1455 | of the nbAvailableBytes check above.*/ |
| 1456 | if (ABS16(gain1-st->prefilter_gain)((float)fabs(gain1-st->prefilter_gain))<QCONST16(.1f,15)(.1f)) |
| 1457 | gain1=st->prefilter_gain; |
| 1458 | |
| 1459 | #ifdef FIXED_POINT |
| 1460 | qg = ((gain1+1536)>>10)/3-1; |
| 1461 | #else |
| 1462 | qg = (int)floor(.5f+gain1*32/3)-1; |
| 1463 | #endif |
| 1464 | qg = IMAX(0, IMIN(7, qg))((0) > (((7) < (qg) ? (7) : (qg))) ? (0) : (((7) < ( qg) ? (7) : (qg)))); |
| 1465 | gain1 = QCONST16(0.09375f,15)(0.09375f)*(qg+1); |
| 1466 | pf_on = 1; |
| 1467 | } |
| 1468 | /*printf("%d %f\n", pitch_index, gain1);*/ |
| 1469 | |
| 1470 | c=0; do { |
| 1471 | int i; |
| 1472 | int offset = mode->shortMdctSize-overlap; |
| 1473 | st->prefilter_period=IMAX(st->prefilter_period, COMBFILTER_MINPERIOD)((st->prefilter_period) > (15) ? (st->prefilter_period ) : (15)); |
| 1474 | OPUS_COPY(in+c*(N+overlap), st->in_mem+c*(overlap), overlap)(memcpy((in+c*(N+overlap)), (st->in_mem+c*(overlap)), (overlap )*sizeof(*(in+c*(N+overlap))) + 0*((in+c*(N+overlap))-(st-> in_mem+c*(overlap))) )); |
| 1475 | for (i=0;i<N;i++) before[c] += ABS32(SHR32(in[c*(N+overlap)+overlap+i], 12))((float)fabs((in[c*(N+overlap)+overlap+i]))); |
| 1476 | if (offset) |
| 1477 | comb_filter(in+c*(N+overlap)+overlap, pre[c]+COMBFILTER_MAXPERIOD1024, |
| 1478 | st->prefilter_period, st->prefilter_period, offset, -st->prefilter_gain, -st->prefilter_gain, |
| 1479 | st->prefilter_tapset, st->prefilter_tapset, NULL((void*)0), 0, st->arch); |
| 1480 | |
| 1481 | comb_filter(in+c*(N+overlap)+overlap+offset, pre[c]+COMBFILTER_MAXPERIOD1024+offset, |
| 1482 | st->prefilter_period, pitch_index, N-offset, -st->prefilter_gain, -gain1, |
| 1483 | st->prefilter_tapset, prefilter_tapset, mode->window, overlap, st->arch); |
| 1484 | for (i=0;i<N;i++) after[c] += ABS32(SHR32(in[c*(N+overlap)+overlap+i], 12))((float)fabs((in[c*(N+overlap)+overlap+i]))); |
| 1485 | } while (++c<CC); |
| 1486 | |
| 1487 | if (CC==2) { |
| 1488 | opus_val16 thresh[2]; |
| 1489 | thresh[0] = MULT16_32_Q15(MULT16_16_Q15(QCONST16(.25f, 15), gain1), before[0])(((((.25f))*(gain1)))*(before[0])) + MULT16_32_Q15(QCONST16(.01f,15), before[1])(((.01f))*(before[1])); |
| 1490 | thresh[1] = MULT16_32_Q15(MULT16_16_Q15(QCONST16(.25f, 15), gain1), before[1])(((((.25f))*(gain1)))*(before[1])) + MULT16_32_Q15(QCONST16(.01f,15), before[0])(((.01f))*(before[0])); |
| 1491 | /* Don't use the filter if one channel gets significantly worse. */ |
| 1492 | if (after[0]-before[0] > thresh[0] || after[1]-before[1] > thresh[1]) cancel_pitch = 1; |
| 1493 | /* Use the filter only if at least one channel gets significantly better. */ |
| 1494 | if (before[0]-after[0] < thresh[0] && before[1]-after[1] < thresh[1]) cancel_pitch = 1; |
| 1495 | } else { |
| 1496 | /* Check that the mono channel actually got better. */ |
| 1497 | if (after[0] > before[0]) cancel_pitch = 1; |
| 1498 | } |
| 1499 | /* If needed, revert to a gain of zero. */ |
| 1500 | if (cancel_pitch) { |
| 1501 | c=0; do { |
| 1502 | int offset = mode->shortMdctSize-overlap; |
| 1503 | OPUS_COPY(in+c*(N+overlap)+overlap, pre[c]+COMBFILTER_MAXPERIOD, N)(memcpy((in+c*(N+overlap)+overlap), (pre[c]+1024), (N)*sizeof (*(in+c*(N+overlap)+overlap)) + 0*((in+c*(N+overlap)+overlap) -(pre[c]+1024)) )); |
| 1504 | comb_filter(in+c*(N+overlap)+overlap+offset, pre[c]+COMBFILTER_MAXPERIOD1024+offset, |
| 1505 | st->prefilter_period, pitch_index, overlap, -st->prefilter_gain, -0, |
| 1506 | st->prefilter_tapset, prefilter_tapset, mode->window, overlap, st->arch); |
| 1507 | } while (++c<CC); |
| 1508 | gain1 = 0; |
| 1509 | pf_on = 0; |
| 1510 | qg = 0; |
| 1511 | } |
| 1512 | |
| 1513 | c=0; do { |
| 1514 | OPUS_COPY(st->in_mem+c*(overlap), in+c*(N+overlap)+N, overlap)(memcpy((st->in_mem+c*(overlap)), (in+c*(N+overlap)+N), (overlap )*sizeof(*(st->in_mem+c*(overlap))) + 0*((st->in_mem+c* (overlap))-(in+c*(N+overlap)+N)) )); |
| 1515 | |
| 1516 | if (N>COMBFILTER_MAXPERIOD1024) |
| 1517 | { |
| 1518 | OPUS_COPY(prefilter_mem+c*COMBFILTER_MAXPERIOD, pre[c]+N, COMBFILTER_MAXPERIOD)(memcpy((prefilter_mem+c*1024), (pre[c]+N), (1024)*sizeof(*(prefilter_mem +c*1024)) + 0*((prefilter_mem+c*1024)-(pre[c]+N)) )); |
| 1519 | } else { |
| 1520 | OPUS_MOVE(prefilter_mem+c*COMBFILTER_MAXPERIOD, prefilter_mem+c*COMBFILTER_MAXPERIOD+N, COMBFILTER_MAXPERIOD-N)(memmove((prefilter_mem+c*1024), (prefilter_mem+c*1024 +N), ( 1024 -N)*sizeof(*(prefilter_mem+c*1024)) + 0*((prefilter_mem+ c*1024)-(prefilter_mem+c*1024 +N)) )); |
| 1521 | OPUS_COPY(prefilter_mem+c*COMBFILTER_MAXPERIOD+COMBFILTER_MAXPERIOD-N, pre[c]+COMBFILTER_MAXPERIOD, N)(memcpy((prefilter_mem+c*1024 +1024 -N), (pre[c]+1024), (N)*sizeof (*(prefilter_mem+c*1024 +1024 -N)) + 0*((prefilter_mem+c*1024 +1024 -N)-(pre[c]+1024)) )); |
| 1522 | } |
| 1523 | } while (++c<CC); |
| 1524 | |
| 1525 | RESTORE_STACK; |
| 1526 | *gain = gain1; |
| 1527 | *pitch = pitch_index; |
| 1528 | *qgain = qg; |
| 1529 | return pf_on; |
| 1530 | } |
| 1531 | |
| 1532 | static int compute_vbr(const CELTModeOpusCustomMode *mode, AnalysisInfo *analysis, opus_int32 base_target, |
| 1533 | int LM, opus_int32 bitrate, int lastCodedBands, int C, int intensity, |
| 1534 | int constrained_vbr, opus_val16 stereo_saving, int tot_boost, |
| 1535 | opus_val16 tf_estimate, int pitch_change, celt_glog maxDepth, |
| 1536 | int lfe, int has_surround_mask, celt_glog surround_masking, |
| 1537 | celt_glog temporal_vbr) |
| 1538 | { |
| 1539 | /* The target rate in 8th bits per frame */ |
| 1540 | opus_int32 target; |
| 1541 | int coded_bins; |
| 1542 | int coded_bands; |
| 1543 | opus_val16 tf_calibration; |
| 1544 | int nbEBands; |
| 1545 | const opus_int16 *eBands; |
| 1546 | |
| 1547 | nbEBands = mode->nbEBands; |
| 1548 | eBands = mode->eBands; |
| 1549 | |
| 1550 | coded_bands = lastCodedBands ? lastCodedBands : nbEBands; |
| 1551 | coded_bins = eBands[coded_bands]<<LM; |
| 1552 | if (C==2) |
| 1553 | coded_bins += eBands[IMIN(intensity, coded_bands)((intensity) < (coded_bands) ? (intensity) : (coded_bands) )]<<LM; |
| 1554 | |
| 1555 | target = base_target; |
| 1556 | |
| 1557 | /*printf("%f %f %f %f %d %d ", st->analysis.activity, st->analysis.tonality, tf_estimate, st->stereo_saving, tot_boost, coded_bands);*/ |
| 1558 | #ifndef DISABLE_FLOAT_API |
| 1559 | if (analysis->valid && analysis->activity<.4) |
| 1560 | target -= (opus_int32)((coded_bins<<BITRES3)*(.4f-analysis->activity)); |
| 1561 | #endif |
| 1562 | /* Stereo savings */ |
| 1563 | if (C==2) |
| 1564 | { |
| 1565 | int coded_stereo_bands; |
| 1566 | int coded_stereo_dof; |
| 1567 | opus_val16 max_frac; |
| 1568 | coded_stereo_bands = IMIN(intensity, coded_bands)((intensity) < (coded_bands) ? (intensity) : (coded_bands) ); |
| 1569 | coded_stereo_dof = (eBands[coded_stereo_bands]<<LM)-coded_stereo_bands; |
| 1570 | /* Maximum fraction of the bits we can save if the signal is mono. */ |
| 1571 | max_frac = DIV32_16(MULT16_16(QCONST16(0.8f, 15), coded_stereo_dof), coded_bins)(((opus_val32)(((opus_val32)((0.8f))*(opus_val32)(coded_stereo_dof ))))/(opus_val16)(coded_bins)); |
| 1572 | stereo_saving = MIN16(stereo_saving, QCONST16(1.f, 8))((stereo_saving) < ((1.f)) ? (stereo_saving) : ((1.f))); |
| 1573 | /*printf("%d %d %d ", coded_stereo_dof, coded_bins, tot_boost);*/ |
| 1574 | target -= (opus_int32)MIN32(MULT16_32_Q15(max_frac,target),((((max_frac)*(target))) < ((((opus_val32)(stereo_saving-( 0.1f))*(opus_val32)((coded_stereo_dof<<3))))) ? (((max_frac )*(target))) : ((((opus_val32)(stereo_saving-(0.1f))*(opus_val32 )((coded_stereo_dof<<3)))))) |
| 1575 | SHR32(MULT16_16(stereo_saving-QCONST16(0.1f,8),(coded_stereo_dof<<BITRES)),8))((((max_frac)*(target))) < ((((opus_val32)(stereo_saving-( 0.1f))*(opus_val32)((coded_stereo_dof<<3))))) ? (((max_frac )*(target))) : ((((opus_val32)(stereo_saving-(0.1f))*(opus_val32 )((coded_stereo_dof<<3)))))); |
| 1576 | } |
| 1577 | /* Boost the rate according to dynalloc (minus the dynalloc average for calibration). */ |
| 1578 | target += tot_boost-(19<<LM); |
| 1579 | /* Apply transient boost, compensating for average boost. */ |
| 1580 | tf_calibration = QCONST16(0.044f,14)(0.044f); |
| 1581 | target += (opus_int32)SHL32(MULT16_32_Q15(tf_estimate-tf_calibration, target),1)(((tf_estimate-tf_calibration)*(target))); |
| 1582 | |
| 1583 | #ifndef DISABLE_FLOAT_API |
| 1584 | /* Apply tonality boost */ |
| 1585 | if (analysis->valid && !lfe) |
| 1586 | { |
| 1587 | opus_int32 tonal_target; |
| 1588 | float tonal; |
| 1589 | |
| 1590 | /* Tonality boost (compensating for the average). */ |
| 1591 | tonal = MAX16(0.f,analysis->tonality-.15f)((0.f) > (analysis->tonality-.15f) ? (0.f) : (analysis-> tonality-.15f))-0.12f; |
| 1592 | tonal_target = target + (opus_int32)((coded_bins<<BITRES3)*1.2f*tonal); |
| 1593 | if (pitch_change) |
| 1594 | tonal_target += (opus_int32)((coded_bins<<BITRES3)*.8f); |
| 1595 | /*printf("%f %f ", analysis->tonality, tonal);*/ |
| 1596 | target = tonal_target; |
| 1597 | } |
| 1598 | #else |
| 1599 | (void)analysis; |
| 1600 | (void)pitch_change; |
| 1601 | #endif |
| 1602 | |
| 1603 | if (has_surround_mask&&!lfe) |
| 1604 | { |
| 1605 | opus_int32 surround_target = target + (opus_int32)SHR32(MULT16_16(SHR32(surround_masking,DB_SHIFT-10),coded_bins<<BITRES), 10)(((opus_val32)((surround_masking))*(opus_val32)(coded_bins<< 3))); |
| 1606 | /*printf("%f %d %d %d %d %d %d ", surround_masking, coded_bins, st->end, st->intensity, surround_target, target, st->bitrate);*/ |
| 1607 | target = IMAX(target/4, surround_target)((target/4) > (surround_target) ? (target/4) : (surround_target )); |
| 1608 | } |
| 1609 | |
| 1610 | { |
| 1611 | opus_int32 floor_depth; |
| 1612 | int bins; |
| 1613 | bins = eBands[nbEBands-2]<<LM; |
| 1614 | /*floor_depth = SHR32(MULT16_16((C*bins<<BITRES),celt_log2(SHL32(MAX16(1,sample_max),13))), DB_SHIFT);*/ |
| 1615 | floor_depth = (opus_int32)SHR32(MULT16_32_Q15((C*bins<<BITRES),maxDepth), DB_SHIFT-15)((((C*bins<<3))*(maxDepth))); |
| 1616 | floor_depth = IMAX(floor_depth, target>>2)((floor_depth) > (target>>2) ? (floor_depth) : (target >>2)); |
| 1617 | target = IMIN(target, floor_depth)((target) < (floor_depth) ? (target) : (floor_depth)); |
| 1618 | /*printf("%f %d\n", maxDepth, floor_depth);*/ |
| 1619 | } |
| 1620 | |
| 1621 | /* Make VBR less aggressive for constrained VBR because we can't keep a higher bitrate |
| 1622 | for long. Needs tuning. */ |
| 1623 | if ((!has_surround_mask||lfe) && constrained_vbr) |
| 1624 | { |
| 1625 | target = base_target + (opus_int32)MULT16_32_Q15(QCONST16(0.67f, 15), target-base_target)(((0.67f))*(target-base_target)); |
| 1626 | } |
| 1627 | |
| 1628 | if (!has_surround_mask && tf_estimate < QCONST16(.2f, 14)(.2f)) |
| 1629 | { |
| 1630 | opus_val16 amount; |
| 1631 | opus_val16 tvbr_factor; |
| 1632 | amount = MULT16_16_Q15(QCONST16(.0000031f, 30), IMAX(0, IMIN(32000, 96000-bitrate)))(((.0000031f))*(((0) > (((32000) < (96000-bitrate) ? (32000 ) : (96000-bitrate))) ? (0) : (((32000) < (96000-bitrate) ? (32000) : (96000-bitrate)))))); |
| 1633 | tvbr_factor = SHR32(MULT16_16(SHR32(temporal_vbr, DB_SHIFT-10), amount), 10)(((opus_val32)((temporal_vbr))*(opus_val32)(amount))); |
| 1634 | target += (opus_int32)MULT16_32_Q15(tvbr_factor, target)((tvbr_factor)*(target)); |
| 1635 | } |
| 1636 | |
| 1637 | /* Don't allow more than doubling the rate */ |
| 1638 | target = IMIN(2*base_target, target)((2*base_target) < (target) ? (2*base_target) : (target)); |
| 1639 | |
| 1640 | return target; |
| 1641 | } |
| 1642 | |
| 1643 | int celt_encode_with_ec(CELTEncoderOpusCustomEncoder * OPUS_RESTRICTrestrict st, const opus_res * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes, ec_enc *enc) |
| 1644 | { |
| 1645 | int i, c, N; |
| 1646 | opus_int32 bits; |
| 1647 | ec_enc _enc; |
| 1648 | VARDECL(celt_sig, in)celt_sig *in; |
| 1649 | VARDECL(celt_sig, freq)celt_sig *freq; |
| 1650 | VARDECL(celt_norm, X)celt_norm *X; |
| 1651 | VARDECL(celt_ener, bandE)celt_ener *bandE; |
| 1652 | VARDECL(celt_glog, bandLogE)celt_glog *bandLogE; |
| 1653 | VARDECL(celt_glog, bandLogE2)celt_glog *bandLogE2; |
| 1654 | VARDECL(int, fine_quant)int *fine_quant; |
| 1655 | VARDECL(celt_glog, error)celt_glog *error; |
| 1656 | VARDECL(int, pulses)int *pulses; |
| 1657 | VARDECL(int, cap)int *cap; |
| 1658 | VARDECL(int, offsets)int *offsets; |
| 1659 | VARDECL(int, importance)int *importance; |
| 1660 | VARDECL(int, spread_weight)int *spread_weight; |
| 1661 | VARDECL(int, fine_priority)int *fine_priority; |
| 1662 | VARDECL(int, tf_res)int *tf_res; |
| 1663 | VARDECL(unsigned char, collapse_masks)unsigned char *collapse_masks; |
| 1664 | celt_sig *prefilter_mem; |
| 1665 | celt_glog *oldBandE, *oldLogE, *oldLogE2, *energyError; |
| 1666 | int shortBlocks=0; |
| 1667 | int isTransient=0; |
| 1668 | const int CC = st->channels; |
| 1669 | const int C = st->stream_channels; |
| 1670 | int LM, M; |
| 1671 | int tf_select; |
| 1672 | int nbFilledBytes, nbAvailableBytes; |
| 1673 | int start; |
| 1674 | int end; |
| 1675 | int effEnd; |
| 1676 | int codedBands; |
| 1677 | int alloc_trim; |
| 1678 | int pitch_index=COMBFILTER_MINPERIOD15; |
| 1679 | opus_val16 gain1 = 0; |
| 1680 | int dual_stereo=0; |
| 1681 | int effectiveBytes; |
| 1682 | int dynalloc_logp; |
| 1683 | opus_int32 vbr_rate; |
| 1684 | opus_int32 total_bits; |
| 1685 | opus_int32 total_boost; |
| 1686 | opus_int32 balance; |
| 1687 | opus_int32 tell; |
| 1688 | opus_int32 tell0_frac; |
| 1689 | int prefilter_tapset=0; |
| 1690 | int pf_on; |
| 1691 | int anti_collapse_rsv; |
| 1692 | int anti_collapse_on=0; |
| 1693 | int silence=0; |
| 1694 | int tf_chan = 0; |
| 1695 | opus_val16 tf_estimate; |
| 1696 | int pitch_change=0; |
| 1697 | opus_int32 tot_boost; |
| 1698 | opus_val32 sample_max; |
| 1699 | celt_glog maxDepth; |
| 1700 | const OpusCustomMode *mode; |
| 1701 | int nbEBands; |
| 1702 | int overlap; |
| 1703 | const opus_int16 *eBands; |
| 1704 | int secondMdct; |
| 1705 | int signalBandwidth; |
| 1706 | int transient_got_disabled=0; |
| 1707 | celt_glog surround_masking=0; |
| 1708 | celt_glog temporal_vbr=0; |
| 1709 | celt_glog surround_trim = 0; |
| 1710 | opus_int32 equiv_rate; |
| 1711 | int hybrid; |
| 1712 | int weak_transient = 0; |
| 1713 | int enable_tf_analysis; |
| 1714 | opus_val16 tone_freq=-1; |
| 1715 | opus_val32 toneishness=0; |
| 1716 | VARDECL(celt_glog, surround_dynalloc)celt_glog *surround_dynalloc; |
| 1717 | ALLOC_STACK; |
| 1718 | |
| 1719 | mode = st->mode; |
| 1720 | nbEBands = mode->nbEBands; |
| 1721 | overlap = mode->overlap; |
| 1722 | eBands = mode->eBands; |
| 1723 | start = st->start; |
| 1724 | end = st->end; |
| 1725 | hybrid = start != 0; |
| 1726 | tf_estimate = 0; |
| 1727 | if (nbCompressedBytes<2 || pcm==NULL((void*)0)) |
| 1728 | { |
| 1729 | RESTORE_STACK; |
| 1730 | return OPUS_BAD_ARG-1; |
| 1731 | } |
| 1732 | |
| 1733 | frame_size *= st->upsample; |
| 1734 | for (LM=0;LM<=mode->maxLM;LM++) |
| 1735 | if (mode->shortMdctSize<<LM==frame_size) |
| 1736 | break; |
| 1737 | if (LM>mode->maxLM) |
| 1738 | { |
| 1739 | RESTORE_STACK; |
| 1740 | return OPUS_BAD_ARG-1; |
| 1741 | } |
| 1742 | M=1<<LM; |
| 1743 | N = M*mode->shortMdctSize; |
| 1744 | |
| 1745 | prefilter_mem = st->in_mem+CC*(overlap); |
| 1746 | oldBandE = (celt_glog*)(st->in_mem+CC*(overlap+COMBFILTER_MAXPERIOD1024)); |
| 1747 | oldLogE = oldBandE + CC*nbEBands; |
| 1748 | oldLogE2 = oldLogE + CC*nbEBands; |
| 1749 | energyError = oldLogE2 + CC*nbEBands; |
| 1750 | |
| 1751 | if (enc==NULL((void*)0)) |
| 1752 | { |
| 1753 | tell0_frac=tell=1; |
| 1754 | nbFilledBytes=0; |
| 1755 | } else { |
| 1756 | tell0_frac=ec_tell_frac(enc); |
| 1757 | tell=ec_tell(enc); |
| 1758 | nbFilledBytes=(tell+4)>>3; |
| 1759 | } |
| 1760 | |
| 1761 | #ifdef CUSTOM_MODES |
| 1762 | if (st->signalling && enc==NULL((void*)0)) |
| 1763 | { |
| 1764 | int tmp = (mode->effEBands-end)>>1; |
| 1765 | end = st->end = IMAX(1, mode->effEBands-tmp)((1) > (mode->effEBands-tmp) ? (1) : (mode->effEBands -tmp)); |
| 1766 | compressed[0] = tmp<<5; |
| 1767 | compressed[0] |= LM<<3; |
| 1768 | compressed[0] |= (C==2)<<2; |
| 1769 | /* Convert "standard mode" to Opus header */ |
| 1770 | if (mode->Fs==48000 && mode->shortMdctSize==120) |
| 1771 | { |
| 1772 | int c0 = toOpus(compressed[0]); |
| 1773 | if (c0<0) |
| 1774 | { |
| 1775 | RESTORE_STACK; |
| 1776 | return OPUS_BAD_ARG-1; |
| 1777 | } |
| 1778 | compressed[0] = c0; |
| 1779 | } |
| 1780 | compressed++; |
| 1781 | nbCompressedBytes--; |
| 1782 | } |
| 1783 | #else |
| 1784 | celt_assert(st->signalling==0){if (!(st->signalling==0)) {celt_fatal("assertion failed: " "st->signalling==0", "/root/firefox-clang/media/libopus/celt/celt_encoder.c" , 1784);}}; |
| 1785 | #endif |
| 1786 | |
| 1787 | /* Can't produce more than 1275 output bytes */ |
| 1788 | nbCompressedBytes = IMIN(nbCompressedBytes,1275)((nbCompressedBytes) < (1275) ? (nbCompressedBytes) : (1275 )); |
| 1789 | |
| 1790 | if (st->vbr && st->bitrate!=OPUS_BITRATE_MAX-1) |
| 1791 | { |
| 1792 | opus_int32 den=mode->Fs>>BITRES3; |
| 1793 | vbr_rate=(st->bitrate*frame_size+(den>>1))/den; |
| 1794 | #ifdef CUSTOM_MODES |
| 1795 | if (st->signalling) |
| 1796 | vbr_rate -= 8<<BITRES3; |
| 1797 | #endif |
| 1798 | effectiveBytes = vbr_rate>>(3+BITRES3); |
| 1799 | } else { |
| 1800 | opus_int32 tmp; |
| 1801 | vbr_rate = 0; |
| 1802 | tmp = st->bitrate*frame_size; |
| 1803 | if (tell>1) |
| 1804 | tmp += tell*mode->Fs; |
| 1805 | if (st->bitrate!=OPUS_BITRATE_MAX-1) |
| 1806 | { |
| 1807 | nbCompressedBytes = IMAX(2, IMIN(nbCompressedBytes,((2) > (((nbCompressedBytes) < ((tmp+4*mode->Fs)/(8* mode->Fs)-!!st->signalling) ? (nbCompressedBytes) : ((tmp +4*mode->Fs)/(8*mode->Fs)-!!st->signalling))) ? (2) : (((nbCompressedBytes) < ((tmp+4*mode->Fs)/(8*mode-> Fs)-!!st->signalling) ? (nbCompressedBytes) : ((tmp+4*mode ->Fs)/(8*mode->Fs)-!!st->signalling)))) |
| 1808 | (tmp+4*mode->Fs)/(8*mode->Fs)-!!st->signalling))((2) > (((nbCompressedBytes) < ((tmp+4*mode->Fs)/(8* mode->Fs)-!!st->signalling) ? (nbCompressedBytes) : ((tmp +4*mode->Fs)/(8*mode->Fs)-!!st->signalling))) ? (2) : (((nbCompressedBytes) < ((tmp+4*mode->Fs)/(8*mode-> Fs)-!!st->signalling) ? (nbCompressedBytes) : ((tmp+4*mode ->Fs)/(8*mode->Fs)-!!st->signalling)))); |
| 1809 | if (enc != NULL((void*)0)) |
| 1810 | ec_enc_shrink(enc, nbCompressedBytes); |
| 1811 | } |
| 1812 | effectiveBytes = nbCompressedBytes - nbFilledBytes; |
| 1813 | } |
| 1814 | nbAvailableBytes = nbCompressedBytes - nbFilledBytes; |
| 1815 | equiv_rate = ((opus_int32)nbCompressedBytes*8*50 << (3-LM)) - (40*C+20)*((400>>LM) - 50); |
| 1816 | if (st->bitrate != OPUS_BITRATE_MAX-1) |
| 1817 | equiv_rate = IMIN(equiv_rate, st->bitrate - (40*C+20)*((400>>LM) - 50))((equiv_rate) < (st->bitrate - (40*C+20)*((400>>LM ) - 50)) ? (equiv_rate) : (st->bitrate - (40*C+20)*((400>> LM) - 50))); |
| 1818 | |
| 1819 | if (enc==NULL((void*)0)) |
| 1820 | { |
| 1821 | ec_enc_init(&_enc, compressed, nbCompressedBytes); |
| 1822 | enc = &_enc; |
| 1823 | } |
| 1824 | |
| 1825 | if (vbr_rate>0) |
| 1826 | { |
| 1827 | /* Computes the max bit-rate allowed in VBR mode to avoid violating the |
| 1828 | target rate and buffering. |
| 1829 | We must do this up front so that bust-prevention logic triggers |
| 1830 | correctly if we don't have enough bits. */ |
| 1831 | if (st->constrained_vbr) |
| 1832 | { |
| 1833 | opus_int32 vbr_bound; |
| 1834 | opus_int32 max_allowed; |
| 1835 | /* We could use any multiple of vbr_rate as bound (depending on the |
| 1836 | delay). |
| 1837 | This is clamped to ensure we use at least two bytes if the encoder |
| 1838 | was entirely empty, but to allow 0 in hybrid mode. */ |
| 1839 | vbr_bound = vbr_rate; |
| 1840 | max_allowed = IMIN(IMAX(tell==1?2:0,((((tell==1?2:0) > ((vbr_rate+vbr_bound-st->vbr_reservoir )>>(3 +3)) ? (tell==1?2:0) : ((vbr_rate+vbr_bound-st-> vbr_reservoir)>>(3 +3)))) < (nbAvailableBytes) ? ((( tell==1?2:0) > ((vbr_rate+vbr_bound-st->vbr_reservoir)>> (3 +3)) ? (tell==1?2:0) : ((vbr_rate+vbr_bound-st->vbr_reservoir )>>(3 +3)))) : (nbAvailableBytes)) |
| 1841 | (vbr_rate+vbr_bound-st->vbr_reservoir)>>(BITRES+3)),((((tell==1?2:0) > ((vbr_rate+vbr_bound-st->vbr_reservoir )>>(3 +3)) ? (tell==1?2:0) : ((vbr_rate+vbr_bound-st-> vbr_reservoir)>>(3 +3)))) < (nbAvailableBytes) ? ((( tell==1?2:0) > ((vbr_rate+vbr_bound-st->vbr_reservoir)>> (3 +3)) ? (tell==1?2:0) : ((vbr_rate+vbr_bound-st->vbr_reservoir )>>(3 +3)))) : (nbAvailableBytes)) |
| 1842 | nbAvailableBytes)((((tell==1?2:0) > ((vbr_rate+vbr_bound-st->vbr_reservoir )>>(3 +3)) ? (tell==1?2:0) : ((vbr_rate+vbr_bound-st-> vbr_reservoir)>>(3 +3)))) < (nbAvailableBytes) ? ((( tell==1?2:0) > ((vbr_rate+vbr_bound-st->vbr_reservoir)>> (3 +3)) ? (tell==1?2:0) : ((vbr_rate+vbr_bound-st->vbr_reservoir )>>(3 +3)))) : (nbAvailableBytes)); |
| 1843 | if(max_allowed < nbAvailableBytes) |
| 1844 | { |
| 1845 | nbCompressedBytes = nbFilledBytes+max_allowed; |
| 1846 | nbAvailableBytes = max_allowed; |
| 1847 | ec_enc_shrink(enc, nbCompressedBytes); |
| 1848 | } |
| 1849 | } |
| 1850 | } |
| 1851 | total_bits = nbCompressedBytes*8; |
| 1852 | |
| 1853 | effEnd = end; |
| 1854 | if (effEnd > mode->effEBands) |
| 1855 | effEnd = mode->effEBands; |
| 1856 | |
| 1857 | ALLOC(in, CC*(N+overlap), celt_sig)in = ((celt_sig*)__builtin_alloca (sizeof(celt_sig)*(CC*(N+overlap )))); |
| 1858 | |
| 1859 | sample_max=MAX32(st->overlap_max, celt_maxabs_res(pcm, C*(N-overlap)/st->upsample))((st->overlap_max) > (celt_maxabs16(pcm, C*(N-overlap)/ st->upsample)) ? (st->overlap_max) : (celt_maxabs16(pcm , C*(N-overlap)/st->upsample))); |
| 1860 | st->overlap_max=celt_maxabs_rescelt_maxabs16(pcm+C*(N-overlap)/st->upsample, C*overlap/st->upsample); |
| 1861 | sample_max=MAX32(sample_max, st->overlap_max)((sample_max) > (st->overlap_max) ? (sample_max) : (st-> overlap_max)); |
| 1862 | #ifdef FIXED_POINT |
| 1863 | silence = (sample_max==0); |
| 1864 | #else |
| 1865 | silence = (sample_max <= (opus_val16)1/(1<<st->lsb_depth)); |
| 1866 | #endif |
| 1867 | #ifdef FUZZING |
| 1868 | if ((rand()&0x3F)==0) |
| 1869 | silence = 1; |
| 1870 | #endif |
| 1871 | if (tell==1) |
| 1872 | ec_enc_bit_logp(enc, silence, 15); |
| 1873 | else |
| 1874 | silence=0; |
| 1875 | if (silence) |
| 1876 | { |
| 1877 | /*In VBR mode there is no need to send more than the minimum. */ |
| 1878 | if (vbr_rate>0) |
| 1879 | { |
| 1880 | effectiveBytes=nbCompressedBytes=IMIN(nbCompressedBytes, nbFilledBytes+2)((nbCompressedBytes) < (nbFilledBytes+2) ? (nbCompressedBytes ) : (nbFilledBytes+2)); |
| 1881 | total_bits=nbCompressedBytes*8; |
| 1882 | nbAvailableBytes=2; |
| 1883 | ec_enc_shrink(enc, nbCompressedBytes); |
| 1884 | } |
| 1885 | /* Pretend we've filled all the remaining bits with zeros |
| 1886 | (that's what the initialiser did anyway) */ |
| 1887 | tell = nbCompressedBytes*8; |
| 1888 | enc->nbits_total+=tell-ec_tell(enc); |
| 1889 | } |
| 1890 | c=0; do { |
| 1891 | int need_clip=0; |
| 1892 | #ifndef FIXED_POINT |
| 1893 | need_clip = st->clip && sample_max>65536.f; |
| 1894 | #endif |
| 1895 | celt_preemphasis(pcm+c, in+c*(N+overlap)+overlap, N, CC, st->upsample, |
| 1896 | mode->preemph, st->preemph_memE+c, need_clip); |
| 1897 | OPUS_COPY(in+c*(N+overlap), &prefilter_mem[(1+c)*COMBFILTER_MAXPERIOD-overlap], overlap)(memcpy((in+c*(N+overlap)), (&prefilter_mem[(1+c)*1024 -overlap ]), (overlap)*sizeof(*(in+c*(N+overlap))) + 0*((in+c*(N+overlap ))-(&prefilter_mem[(1+c)*1024 -overlap])) )); |
| 1898 | } while (++c<CC); |
| 1899 | |
| 1900 | |
| 1901 | tone_freq = tone_detect(in, CC, N+overlap, &toneishness, mode->Fs); |
| 1902 | isTransient = 0; |
| 1903 | shortBlocks = 0; |
| 1904 | if (st->complexity >= 1 && !st->lfe) |
| 1905 | { |
| 1906 | /* Reduces the likelihood of energy instability on fricatives at low bitrate |
| 1907 | in hybrid mode. It seems like we still want to have real transients on vowels |
| 1908 | though (small SILK quantization offset value). */ |
| 1909 | int allow_weak_transients = hybrid && effectiveBytes<15 && st->silk_info.signalType != 2; |
| 1910 | isTransient = transient_analysis(in, N+overlap, CC, |
| 1911 | &tf_estimate, &tf_chan, allow_weak_transients, &weak_transient, tone_freq, toneishness); |
| 1912 | } |
| 1913 | /* Find pitch period and gain */ |
| 1914 | { |
| 1915 | int enabled; |
| 1916 | int qg; |
| 1917 | enabled = ((st->lfe&&nbAvailableBytes>3) || nbAvailableBytes>12*C) && !hybrid && !silence && tell+16<=total_bits && !st->disable_pf |
| 1918 | && st->complexity >= 5; |
| 1919 | |
| 1920 | prefilter_tapset = st->tapset_decision; |
| 1921 | pf_on = run_prefilter(st, in, prefilter_mem, CC, N, prefilter_tapset, &pitch_index, &gain1, &qg, enabled, tf_estimate, nbAvailableBytes, &st->analysis, tone_freq, toneishness); |
| 1922 | if ((gain1 > QCONST16(.4f,15)(.4f) || st->prefilter_gain > QCONST16(.4f,15)(.4f)) && (!st->analysis.valid || st->analysis.tonality > .3) |
| 1923 | && (pitch_index > 1.26*st->prefilter_period || pitch_index < .79*st->prefilter_period)) |
| 1924 | pitch_change = 1; |
| 1925 | if (pf_on==0) |
| 1926 | { |
| 1927 | if(!hybrid && tell+16<=total_bits) |
| 1928 | ec_enc_bit_logp(enc, 0, 1); |
| 1929 | } else { |
| 1930 | /*This block is not gated by a total bits check only because |
| 1931 | of the nbAvailableBytes check above.*/ |
| 1932 | int octave; |
| 1933 | ec_enc_bit_logp(enc, 1, 1); |
| 1934 | pitch_index += 1; |
| 1935 | octave = EC_ILOG(pitch_index)(((int)sizeof(unsigned)*8)-(__builtin_clz(pitch_index)))-5; |
| 1936 | ec_enc_uint(enc, octave, 6); |
| 1937 | ec_enc_bits(enc, pitch_index-(16<<octave), 4+octave); |
| 1938 | pitch_index -= 1; |
| 1939 | ec_enc_bits(enc, qg, 3); |
| 1940 | ec_enc_icdf(enc, prefilter_tapset, tapset_icdf, 2); |
| 1941 | } |
| 1942 | } |
| 1943 | if (LM>0 && ec_tell(enc)+3<=total_bits) |
| 1944 | { |
| 1945 | if (isTransient) |
| 1946 | shortBlocks = M; |
| 1947 | } else { |
| 1948 | isTransient = 0; |
| 1949 | transient_got_disabled=1; |
| 1950 | } |
| 1951 | |
| 1952 | ALLOC(freq, CC*N, celt_sig)freq = ((celt_sig*)__builtin_alloca (sizeof(celt_sig)*(CC*N)) ); /**< Interleaved signal MDCTs */ |
| 1953 | ALLOC(bandE,nbEBands*CC, celt_ener)bandE = ((celt_ener*)__builtin_alloca (sizeof(celt_ener)*(nbEBands *CC))); |
| 1954 | ALLOC(bandLogE,nbEBands*CC, celt_glog)bandLogE = ((celt_glog*)__builtin_alloca (sizeof(celt_glog)*( nbEBands*CC))); |
| 1955 | |
| 1956 | secondMdct = shortBlocks && st->complexity>=8; |
| 1957 | ALLOC(bandLogE2, C*nbEBands, celt_glog)bandLogE2 = ((celt_glog*)__builtin_alloca (sizeof(celt_glog)* (C*nbEBands))); |
| 1958 | if (secondMdct) |
| 1959 | { |
| 1960 | compute_mdcts(mode, 0, in, freq, C, CC, LM, st->upsample, st->arch); |
| 1961 | compute_band_energies(mode, freq, bandE, effEnd, C, LM, st->arch); |
| 1962 | amp2Log2(mode, effEnd, end, bandE, bandLogE2, C); |
| 1963 | for (c=0;c<C;c++) |
| 1964 | { |
| 1965 | for (i=0;i<end;i++) |
| 1966 | bandLogE2[nbEBands*c+i] += HALF32(SHL32(LM, DB_SHIFT))(.5f*((LM))); |
| 1967 | } |
| 1968 | } |
| 1969 | |
| 1970 | compute_mdcts(mode, shortBlocks, in, freq, C, CC, LM, st->upsample, st->arch); |
| 1971 | /* This should catch any NaN in the CELT input. Since we're not supposed to see any (they're filtered |
| 1972 | at the Opus layer), just abort. */ |
| 1973 | celt_assert(!celt_isnan(freq[0]) && (C==1 || !celt_isnan(freq[N]))){if (!(!((freq[0])!=(freq[0])) && (C==1 || !((freq[N] )!=(freq[N]))))) {celt_fatal("assertion failed: " "!celt_isnan(freq[0]) && (C==1 || !celt_isnan(freq[N]))" , "/root/firefox-clang/media/libopus/celt/celt_encoder.c", 1973 );}}; |
| 1974 | if (CC==2&&C==1) |
| 1975 | tf_chan = 0; |
| 1976 | compute_band_energies(mode, freq, bandE, effEnd, C, LM, st->arch); |
| 1977 | |
| 1978 | if (st->lfe) |
| 1979 | { |
| 1980 | for (i=2;i<end;i++) |
| 1981 | { |
| 1982 | bandE[i] = IMIN(bandE[i], MULT16_32_Q15(QCONST16(1e-4f,15),bandE[0]))((bandE[i]) < ((((1e-4f))*(bandE[0]))) ? (bandE[i]) : (((( 1e-4f))*(bandE[0])))); |
| 1983 | bandE[i] = MAX32(bandE[i], EPSILON)((bandE[i]) > (1e-15f) ? (bandE[i]) : (1e-15f)); |
| 1984 | } |
| 1985 | } |
| 1986 | amp2Log2(mode, effEnd, end, bandE, bandLogE, C); |
| 1987 | |
| 1988 | ALLOC(surround_dynalloc, C*nbEBands, celt_glog)surround_dynalloc = ((celt_glog*)__builtin_alloca (sizeof(celt_glog )*(C*nbEBands))); |
| 1989 | OPUS_CLEAR(surround_dynalloc, end)(memset((surround_dynalloc), 0, (end)*sizeof(*(surround_dynalloc )))); |
| 1990 | /* This computes how much masking takes place between surround channels */ |
| 1991 | if (!hybrid&&st->energy_mask&&!st->lfe) |
| 1992 | { |
| 1993 | int mask_end; |
| 1994 | int midband; |
| 1995 | int count_dynalloc; |
| 1996 | opus_val32 mask_avg=0; |
| 1997 | opus_val32 diff=0; |
| 1998 | int count=0; |
| 1999 | mask_end = IMAX(2,st->lastCodedBands)((2) > (st->lastCodedBands) ? (2) : (st->lastCodedBands )); |
| 2000 | for (c=0;c<C;c++) |
| 2001 | { |
| 2002 | for(i=0;i<mask_end;i++) |
| 2003 | { |
| 2004 | celt_glog mask; |
| 2005 | opus_val16 mask16; |
| 2006 | mask = MAXG(MING(st->energy_mask[nbEBands*c+i],((((st->energy_mask[nbEBands*c+i]) < ((.25f)) ? (st-> energy_mask[nbEBands*c+i]) : ((.25f)))) > (-(2.0f)) ? (((st ->energy_mask[nbEBands*c+i]) < ((.25f)) ? (st->energy_mask [nbEBands*c+i]) : ((.25f)))) : (-(2.0f))) |
| 2007 | GCONST(.25f)), -GCONST(2.0f))((((st->energy_mask[nbEBands*c+i]) < ((.25f)) ? (st-> energy_mask[nbEBands*c+i]) : ((.25f)))) > (-(2.0f)) ? (((st ->energy_mask[nbEBands*c+i]) < ((.25f)) ? (st->energy_mask [nbEBands*c+i]) : ((.25f)))) : (-(2.0f))); |
| 2008 | if (mask > 0) |
| 2009 | mask = HALF32(mask)(.5f*(mask)); |
| 2010 | mask16 = SHR32(mask, DB_SHIFT-10)(mask); |
| 2011 | mask_avg += MULT16_16(mask16, eBands[i+1]-eBands[i])((opus_val32)(mask16)*(opus_val32)(eBands[i+1]-eBands[i])); |
| 2012 | count += eBands[i+1]-eBands[i]; |
| 2013 | diff += MULT16_16(mask16, 1+2*i-mask_end)((opus_val32)(mask16)*(opus_val32)(1+2*i-mask_end)); |
| 2014 | } |
| 2015 | } |
| 2016 | celt_assert(count>0){if (!(count>0)) {celt_fatal("assertion failed: " "count>0" , "/root/firefox-clang/media/libopus/celt/celt_encoder.c", 2016 );}}; |
| 2017 | mask_avg = SHL32(DIV32_16(mask_avg,count), DB_SHIFT-10)((((opus_val32)(mask_avg))/(opus_val16)(count))); |
| 2018 | mask_avg += GCONST(.2f)(.2f); |
| 2019 | diff = SHL32(diff*6/(C*(mask_end-1)*(mask_end+1)*mask_end), DB_SHIFT-10)(diff*6/(C*(mask_end-1)*(mask_end+1)*mask_end)); |
| 2020 | /* Again, being conservative */ |
| 2021 | diff = HALF32(diff)(.5f*(diff)); |
| 2022 | diff = MAX32(MIN32(diff, GCONST(.031f)), -GCONST(.031f))((((diff) < ((.031f)) ? (diff) : ((.031f)))) > (-(.031f )) ? (((diff) < ((.031f)) ? (diff) : ((.031f)))) : (-(.031f ))); |
| 2023 | /* Find the band that's in the middle of the coded spectrum */ |
| 2024 | for (midband=0;eBands[midband+1] < eBands[mask_end]/2;midband++); |
| 2025 | count_dynalloc=0; |
| 2026 | for(i=0;i<mask_end;i++) |
| 2027 | { |
| 2028 | opus_val32 lin; |
| 2029 | celt_glog unmask; |
| 2030 | lin = mask_avg + diff*(i-midband); |
| 2031 | if (C==2) |
| 2032 | unmask = MAXG(st->energy_mask[i], st->energy_mask[nbEBands+i])((st->energy_mask[i]) > (st->energy_mask[nbEBands+i] ) ? (st->energy_mask[i]) : (st->energy_mask[nbEBands+i] )); |
| 2033 | else |
| 2034 | unmask = st->energy_mask[i]; |
| 2035 | unmask = MING(unmask, GCONST(.0f))((unmask) < ((.0f)) ? (unmask) : ((.0f))); |
| 2036 | unmask -= lin; |
| 2037 | if (unmask > GCONST(.25f)(.25f)) |
| 2038 | { |
| 2039 | surround_dynalloc[i] = unmask - GCONST(.25f)(.25f); |
| 2040 | count_dynalloc++; |
| 2041 | } |
| 2042 | } |
| 2043 | if (count_dynalloc>=3) |
| 2044 | { |
| 2045 | /* If we need dynalloc in many bands, it's probably because our |
| 2046 | initial masking rate was too low. */ |
| 2047 | mask_avg += GCONST(.25f)(.25f); |
| 2048 | if (mask_avg>0) |
| 2049 | { |
| 2050 | /* Something went really wrong in the original calculations, |
| 2051 | disabling masking. */ |
| 2052 | mask_avg = 0; |
| 2053 | diff = 0; |
| 2054 | OPUS_CLEAR(surround_dynalloc, mask_end)(memset((surround_dynalloc), 0, (mask_end)*sizeof(*(surround_dynalloc )))); |
| 2055 | } else { |
| 2056 | for(i=0;i<mask_end;i++) |
| 2057 | surround_dynalloc[i] = MAXG(0, surround_dynalloc[i]-GCONST(.25f))((0) > (surround_dynalloc[i]-(.25f)) ? (0) : (surround_dynalloc [i]-(.25f))); |
| 2058 | } |
| 2059 | } |
| 2060 | mask_avg += GCONST(.2f)(.2f); |
| 2061 | /* Convert to 1/64th units used for the trim */ |
| 2062 | surround_trim = 64*diff; |
| 2063 | /*printf("%d %d ", mask_avg, surround_trim);*/ |
| 2064 | surround_masking = mask_avg; |
| 2065 | } |
| 2066 | /* Temporal VBR (but not for LFE) */ |
| 2067 | if (!st->lfe) |
| 2068 | { |
| 2069 | celt_glog follow=-QCONST32(10.0f, DB_SHIFT-5)(10.0f); |
| 2070 | opus_val32 frame_avg=0; |
| 2071 | celt_glog offset = shortBlocks?HALF32(SHL32(LM, DB_SHIFT-5))(.5f*((LM))):0; |
| 2072 | for(i=start;i<end;i++) |
| 2073 | { |
| 2074 | follow = MAXG(follow-QCONST32(1.0f, DB_SHIFT-5), SHR32(bandLogE[i],5)-offset)((follow-(1.0f)) > ((bandLogE[i])-offset) ? (follow-(1.0f) ) : ((bandLogE[i])-offset)); |
| 2075 | if (C==2) |
| 2076 | follow = MAXG(follow, SHR32(bandLogE[i+nbEBands],5)-offset)((follow) > ((bandLogE[i+nbEBands])-offset) ? (follow) : ( (bandLogE[i+nbEBands])-offset)); |
| 2077 | frame_avg += follow; |
| 2078 | } |
| 2079 | frame_avg /= (end-start); |
| 2080 | temporal_vbr = SUB32(SHL32(frame_avg, 5),st->spec_avg)(((frame_avg))-(st->spec_avg)); |
| 2081 | temporal_vbr = MING(GCONST(3.f), MAXG(-GCONST(1.5f), temporal_vbr))(((3.f)) < (((-(1.5f)) > (temporal_vbr) ? (-(1.5f)) : ( temporal_vbr))) ? ((3.f)) : (((-(1.5f)) > (temporal_vbr) ? (-(1.5f)) : (temporal_vbr)))); |
| 2082 | st->spec_avg += MULT16_32_Q15(QCONST16(.02f, 15), temporal_vbr)(((.02f))*(temporal_vbr)); |
| 2083 | } |
| 2084 | /*for (i=0;i<21;i++) |
| 2085 | printf("%f ", bandLogE[i]); |
| 2086 | printf("\n");*/ |
| 2087 | |
| 2088 | if (!secondMdct) |
| 2089 | { |
| 2090 | OPUS_COPY(bandLogE2, bandLogE, C*nbEBands)(memcpy((bandLogE2), (bandLogE), (C*nbEBands)*sizeof(*(bandLogE2 )) + 0*((bandLogE2)-(bandLogE)) )); |
| 2091 | } |
| 2092 | |
| 2093 | /* Last chance to catch any transient we might have missed in the |
| 2094 | time-domain analysis */ |
| 2095 | if (LM>0 && ec_tell(enc)+3<=total_bits && !isTransient && st->complexity>=5 && !st->lfe && !hybrid) |
| 2096 | { |
| 2097 | if (patch_transient_decision(bandLogE, oldBandE, nbEBands, start, end, C)) |
| 2098 | { |
| 2099 | isTransient = 1; |
| 2100 | shortBlocks = M; |
| 2101 | compute_mdcts(mode, shortBlocks, in, freq, C, CC, LM, st->upsample, st->arch); |
| 2102 | compute_band_energies(mode, freq, bandE, effEnd, C, LM, st->arch); |
| 2103 | amp2Log2(mode, effEnd, end, bandE, bandLogE, C); |
| 2104 | /* Compensate for the scaling of short vs long mdcts */ |
| 2105 | for (c=0;c<C;c++) |
| 2106 | { |
| 2107 | for (i=0;i<end;i++) |
| 2108 | bandLogE2[nbEBands*c+i] += HALF32(SHL32(LM, DB_SHIFT))(.5f*((LM))); |
| 2109 | } |
| 2110 | tf_estimate = QCONST16(.2f,14)(.2f); |
| 2111 | } |
| 2112 | } |
| 2113 | |
| 2114 | if (LM>0 && ec_tell(enc)+3<=total_bits) |
| 2115 | ec_enc_bit_logp(enc, isTransient, 3); |
| 2116 | |
| 2117 | ALLOC(X, C*N, celt_norm)X = ((celt_norm*)__builtin_alloca (sizeof(celt_norm)*(C*N))); /**< Interleaved normalised MDCTs */ |
| 2118 | |
| 2119 | /* Band normalisation */ |
| 2120 | normalise_bands(mode, freq, X, bandE, effEnd, C, M); |
| 2121 | |
| 2122 | enable_tf_analysis = effectiveBytes>=15*C && !hybrid && st->complexity>=2 && !st->lfe && toneishness < QCONST32(.98f, 29)(.98f); |
| 2123 | |
| 2124 | ALLOC(offsets, nbEBands, int)offsets = ((int*)__builtin_alloca (sizeof(int)*(nbEBands))); |
| 2125 | ALLOC(importance, nbEBands, int)importance = ((int*)__builtin_alloca (sizeof(int)*(nbEBands)) ); |
| 2126 | ALLOC(spread_weight, nbEBands, int)spread_weight = ((int*)__builtin_alloca (sizeof(int)*(nbEBands ))); |
| 2127 | |
| 2128 | maxDepth = dynalloc_analysis(bandLogE, bandLogE2, oldBandE, nbEBands, start, end, C, offsets, |
| 2129 | st->lsb_depth, mode->logN, isTransient, st->vbr, st->constrained_vbr, |
| 2130 | eBands, LM, effectiveBytes, &tot_boost, st->lfe, surround_dynalloc, &st->analysis, importance, spread_weight, tone_freq, toneishness); |
| 2131 | |
| 2132 | ALLOC(tf_res, nbEBands, int)tf_res = ((int*)__builtin_alloca (sizeof(int)*(nbEBands))); |
| 2133 | /* Disable variable tf resolution for hybrid and at very low bitrate */ |
| 2134 | if (enable_tf_analysis) |
| 2135 | { |
| 2136 | int lambda; |
| 2137 | lambda = IMAX(80, 20480/effectiveBytes + 2)((80) > (20480/effectiveBytes + 2) ? (80) : (20480/effectiveBytes + 2)); |
| 2138 | tf_select = tf_analysis(mode, effEnd, isTransient, tf_res, lambda, X, N, LM, tf_estimate, tf_chan, importance); |
| 2139 | for (i=effEnd;i<end;i++) |
| 2140 | tf_res[i] = tf_res[effEnd-1]; |
| 2141 | } else if (hybrid && weak_transient) |
| 2142 | { |
| 2143 | /* For weak transients, we rely on the fact that improving time resolution using |
| 2144 | TF on a long window is imperfect and will not result in an energy collapse at |
| 2145 | low bitrate. */ |
| 2146 | for (i=0;i<end;i++) |
| 2147 | tf_res[i] = 1; |
| 2148 | tf_select=0; |
| 2149 | } else if (hybrid && effectiveBytes<15 && st->silk_info.signalType != 2) |
| 2150 | { |
| 2151 | /* For low bitrate hybrid, we force temporal resolution to 5 ms rather than 2.5 ms. */ |
| 2152 | for (i=0;i<end;i++) |
| 2153 | tf_res[i] = 0; |
| 2154 | tf_select=isTransient; |
| 2155 | } else { |
| 2156 | for (i=0;i<end;i++) |
| 2157 | tf_res[i] = isTransient; |
| 2158 | tf_select=0; |
| 2159 | } |
| 2160 | |
| 2161 | ALLOC(error, C*nbEBands, celt_glog)error = ((celt_glog*)__builtin_alloca (sizeof(celt_glog)*(C*nbEBands ))); |
| 2162 | c=0; |
| 2163 | do { |
| 2164 | for (i=start;i<end;i++) |
| 2165 | { |
| 2166 | /* When the energy is stable, slightly bias energy quantization towards |
| 2167 | the previous error to make the gain more stable (a constant offset is |
| 2168 | better than fluctuations). */ |
| 2169 | if (ABS32(SUB32(bandLogE[i+c*nbEBands], oldBandE[i+c*nbEBands]))((float)fabs(((bandLogE[i+c*nbEBands])-(oldBandE[i+c*nbEBands ])))) < GCONST(2.f)(2.f)) |
| 2170 | { |
| 2171 | bandLogE[i+c*nbEBands] -= MULT16_32_Q15(QCONST16(0.25f, 15), energyError[i+c*nbEBands])(((0.25f))*(energyError[i+c*nbEBands])); |
| 2172 | } |
| 2173 | } |
| 2174 | } while (++c < C); |
| 2175 | quant_coarse_energy(mode, start, end, effEnd, bandLogE, |
| 2176 | oldBandE, total_bits, error, enc, |
| 2177 | C, LM, nbAvailableBytes, st->force_intra, |
| 2178 | &st->delayedIntra, st->complexity >= 4, st->loss_rate, st->lfe); |
| 2179 | |
| 2180 | tf_encode(start, end, isTransient, tf_res, LM, tf_select, enc); |
| 2181 | |
| 2182 | if (ec_tell(enc)+4<=total_bits) |
| 2183 | { |
| 2184 | if (st->lfe) |
| 2185 | { |
| 2186 | st->tapset_decision = 0; |
| 2187 | st->spread_decision = SPREAD_NORMAL(2); |
| 2188 | } else if (hybrid) |
| 2189 | { |
| 2190 | if (st->complexity == 0) |
| 2191 | st->spread_decision = SPREAD_NONE(0); |
| 2192 | else if (isTransient) |
| 2193 | st->spread_decision = SPREAD_NORMAL(2); |
| 2194 | else |
| 2195 | st->spread_decision = SPREAD_AGGRESSIVE(3); |
| 2196 | } else if (shortBlocks || st->complexity < 3 || nbAvailableBytes < 10*C) |
| 2197 | { |
| 2198 | if (st->complexity == 0) |
| 2199 | st->spread_decision = SPREAD_NONE(0); |
| 2200 | else |
| 2201 | st->spread_decision = SPREAD_NORMAL(2); |
| 2202 | } else { |
| 2203 | /* Disable new spreading+tapset estimator until we can show it works |
| 2204 | better than the old one. So far it seems like spreading_decision() |
| 2205 | works best. */ |
| 2206 | #if 0 |
| 2207 | if (st->analysis.valid) |
| 2208 | { |
| 2209 | static const opus_val16 spread_thresholds[3] = {-QCONST16(.6f, 15)(.6f), -QCONST16(.2f, 15)(.2f), -QCONST16(.07f, 15)(.07f)}; |
| 2210 | static const opus_val16 spread_histeresis[3] = {QCONST16(.15f, 15)(.15f), QCONST16(.07f, 15)(.07f), QCONST16(.02f, 15)(.02f)}; |
| 2211 | static const opus_val16 tapset_thresholds[2] = {QCONST16(.0f, 15)(.0f), QCONST16(.15f, 15)(.15f)}; |
| 2212 | static const opus_val16 tapset_histeresis[2] = {QCONST16(.1f, 15)(.1f), QCONST16(.05f, 15)(.05f)}; |
| 2213 | st->spread_decision = hysteresis_decision(-st->analysis.tonality, spread_thresholds, spread_histeresis, 3, st->spread_decision); |
| 2214 | st->tapset_decision = hysteresis_decision(st->analysis.tonality_slope, tapset_thresholds, tapset_histeresis, 2, st->tapset_decision); |
| 2215 | } else |
| 2216 | #endif |
| 2217 | { |
| 2218 | st->spread_decision = spreading_decision(mode, X, |
| 2219 | &st->tonal_average, st->spread_decision, &st->hf_average, |
| 2220 | &st->tapset_decision, pf_on&&!shortBlocks, effEnd, C, M, spread_weight); |
| 2221 | } |
| 2222 | /*printf("%d %d\n", st->tapset_decision, st->spread_decision);*/ |
| 2223 | /*printf("%f %d %f %d\n\n", st->analysis.tonality, st->spread_decision, st->analysis.tonality_slope, st->tapset_decision);*/ |
| 2224 | } |
| 2225 | ec_enc_icdf(enc, st->spread_decision, spread_icdf, 5); |
| 2226 | } else { |
| 2227 | st->spread_decision = SPREAD_NORMAL(2); |
| 2228 | } |
| 2229 | |
| 2230 | /* For LFE, everything interesting is in the first band */ |
| 2231 | if (st->lfe) |
| 2232 | offsets[0] = IMIN(8, effectiveBytes/3)((8) < (effectiveBytes/3) ? (8) : (effectiveBytes/3)); |
| 2233 | ALLOC(cap, nbEBands, int)cap = ((int*)__builtin_alloca (sizeof(int)*(nbEBands))); |
| 2234 | init_caps(mode,cap,LM,C); |
| 2235 | |
| 2236 | dynalloc_logp = 6; |
| 2237 | total_bits<<=BITRES3; |
| 2238 | total_boost = 0; |
| 2239 | tell = ec_tell_frac(enc); |
| 2240 | for (i=start;i<end;i++) |
| 2241 | { |
| 2242 | int width, quanta; |
| 2243 | int dynalloc_loop_logp; |
| 2244 | int boost; |
| 2245 | int j; |
| 2246 | width = C*(eBands[i+1]-eBands[i])<<LM; |
| 2247 | /* quanta is 6 bits, but no more than 1 bit/sample |
| 2248 | and no less than 1/8 bit/sample */ |
| 2249 | quanta = IMIN(width<<BITRES, IMAX(6<<BITRES, width))((width<<3) < (((6<<3) > (width) ? (6<< 3) : (width))) ? (width<<3) : (((6<<3) > (width ) ? (6<<3) : (width)))); |
| 2250 | dynalloc_loop_logp = dynalloc_logp; |
| 2251 | boost = 0; |
| 2252 | for (j = 0; tell+(dynalloc_loop_logp<<BITRES3) < total_bits-total_boost |
| 2253 | && boost < cap[i]; j++) |
| 2254 | { |
| 2255 | int flag; |
| 2256 | flag = j<offsets[i]; |
| 2257 | ec_enc_bit_logp(enc, flag, dynalloc_loop_logp); |
| 2258 | tell = ec_tell_frac(enc); |
| 2259 | if (!flag) |
| 2260 | break; |
| 2261 | boost += quanta; |
| 2262 | total_boost += quanta; |
| 2263 | dynalloc_loop_logp = 1; |
| 2264 | } |
| 2265 | /* Making dynalloc more likely */ |
| 2266 | if (j) |
| 2267 | dynalloc_logp = IMAX(2, dynalloc_logp-1)((2) > (dynalloc_logp-1) ? (2) : (dynalloc_logp-1)); |
| 2268 | offsets[i] = boost; |
| 2269 | } |
| 2270 | |
| 2271 | if (C==2) |
| 2272 | { |
| 2273 | static const opus_val16 intensity_thresholds[21]= |
| 2274 | /* 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 off*/ |
| 2275 | { 1, 2, 3, 4, 5, 6, 7, 8,16,24,36,44,50,56,62,67,72,79,88,106,134}; |
| 2276 | static const opus_val16 intensity_histeresis[21]= |
| 2277 | { 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 4, 5, 6, 8, 8}; |
| 2278 | |
| 2279 | /* Always use MS for 2.5 ms frames until we can do a better analysis */ |
| 2280 | if (LM!=0) |
| 2281 | dual_stereo = stereo_analysis(mode, X, LM, N); |
| 2282 | |
| 2283 | st->intensity = hysteresis_decision((opus_val16)(equiv_rate/1000), |
| 2284 | intensity_thresholds, intensity_histeresis, 21, st->intensity); |
| 2285 | st->intensity = IMIN(end,IMAX(start, st->intensity))((end) < (((start) > (st->intensity) ? (start) : (st ->intensity))) ? (end) : (((start) > (st->intensity) ? (start) : (st->intensity)))); |
| 2286 | } |
| 2287 | |
| 2288 | alloc_trim = 5; |
| 2289 | if (tell+(6<<BITRES3) <= total_bits - total_boost) |
| 2290 | { |
| 2291 | if (start > 0 || st->lfe) |
| 2292 | { |
| 2293 | st->stereo_saving = 0; |
| 2294 | alloc_trim = 5; |
| 2295 | } else { |
| 2296 | alloc_trim = alloc_trim_analysis(mode, X, bandLogE, |
| 2297 | end, LM, C, N, &st->analysis, &st->stereo_saving, tf_estimate, |
| 2298 | st->intensity, surround_trim, equiv_rate, st->arch); |
| 2299 | } |
| 2300 | ec_enc_icdf(enc, alloc_trim, trim_icdf, 7); |
| 2301 | tell = ec_tell_frac(enc); |
| 2302 | } |
| 2303 | |
| 2304 | /* Variable bitrate */ |
| 2305 | if (vbr_rate>0) |
| 2306 | { |
| 2307 | opus_val16 alpha; |
| 2308 | opus_int32 delta; |
| 2309 | /* The target rate in 8th bits per frame */ |
| 2310 | opus_int32 target, base_target; |
| 2311 | opus_int32 min_allowed; |
| 2312 | int lm_diff = mode->maxLM - LM; |
| 2313 | |
| 2314 | /* Don't attempt to use more than 510 kb/s, even for frames smaller than 20 ms. |
| 2315 | The CELT allocator will just not be able to use more than that anyway. */ |
| 2316 | nbCompressedBytes = IMIN(nbCompressedBytes,1275>>(3-LM))((nbCompressedBytes) < (1275>>(3-LM)) ? (nbCompressedBytes ) : (1275>>(3-LM))); |
| 2317 | if (!hybrid) |
| 2318 | { |
| 2319 | base_target = vbr_rate - ((40*C+20)<<BITRES3); |
| 2320 | } else { |
| 2321 | base_target = IMAX(0, vbr_rate - ((9*C+4)<<BITRES))((0) > (vbr_rate - ((9*C+4)<<3)) ? (0) : (vbr_rate - ((9*C+4)<<3))); |
| 2322 | } |
| 2323 | |
| 2324 | if (st->constrained_vbr) |
| 2325 | base_target += (st->vbr_offset>>lm_diff); |
| 2326 | |
| 2327 | if (!hybrid) |
| 2328 | { |
| 2329 | target = compute_vbr(mode, &st->analysis, base_target, LM, equiv_rate, |
| 2330 | st->lastCodedBands, C, st->intensity, st->constrained_vbr, |
| 2331 | st->stereo_saving, tot_boost, tf_estimate, pitch_change, maxDepth, |
| 2332 | st->lfe, st->energy_mask!=NULL((void*)0), surround_masking, |
| 2333 | temporal_vbr); |
| 2334 | } else { |
| 2335 | target = base_target; |
| 2336 | /* Tonal frames (offset<100) need more bits than noisy (offset>100) ones. */ |
| 2337 | if (st->silk_info.offset < 100) target += 12 << BITRES3 >> (3-LM); |
| 2338 | if (st->silk_info.offset > 100) target -= 18 << BITRES3 >> (3-LM); |
| 2339 | /* Boosting bitrate on transients and vowels with significant temporal |
| 2340 | spikes. */ |
| 2341 | target += (opus_int32)MULT16_16_Q14(tf_estimate-QCONST16(.25f,14), (50<<BITRES))((tf_estimate-(.25f))*((50<<3))); |
| 2342 | /* If we have a strong transient, let's make sure it has enough bits to code |
| 2343 | the first two bands, so that it can use folding rather than noise. */ |
| 2344 | if (tf_estimate > QCONST16(.7f,14)(.7f)) |
| 2345 | target = IMAX(target, 50<<BITRES)((target) > (50<<3) ? (target) : (50<<3)); |
| 2346 | } |
| 2347 | /* The current offset is removed from the target and the space used |
| 2348 | so far is added*/ |
| 2349 | target=target+tell; |
| 2350 | /* In VBR mode the frame size must not be reduced so much that it would |
| 2351 | result in the encoder running out of bits. |
| 2352 | The margin of 2 bytes ensures that none of the bust-prevention logic |
| 2353 | in the decoder will have triggered so far. */ |
| 2354 | min_allowed = ((tell+total_boost+(1<<(BITRES3+3))-1)>>(BITRES3+3)) + 2; |
| 2355 | /* Take into account the 37 bits we need to have left in the packet to |
| 2356 | signal a redundant frame in hybrid mode. Creating a shorter packet would |
| 2357 | create an entropy coder desync. */ |
| 2358 | if (hybrid) |
| 2359 | min_allowed = IMAX(min_allowed, (tell0_frac+(37<<BITRES)+total_boost+(1<<(BITRES+3))-1)>>(BITRES+3))((min_allowed) > ((tell0_frac+(37<<3)+total_boost+(1 <<(3 +3))-1)>>(3 +3)) ? (min_allowed) : ((tell0_frac +(37<<3)+total_boost+(1<<(3 +3))-1)>>(3 +3) )); |
| 2360 | |
| 2361 | nbAvailableBytes = (target+(1<<(BITRES3+2)))>>(BITRES3+3); |
| 2362 | nbAvailableBytes = IMAX(min_allowed,nbAvailableBytes)((min_allowed) > (nbAvailableBytes) ? (min_allowed) : (nbAvailableBytes )); |
| 2363 | nbAvailableBytes = IMIN(nbCompressedBytes,nbAvailableBytes)((nbCompressedBytes) < (nbAvailableBytes) ? (nbCompressedBytes ) : (nbAvailableBytes)); |
| 2364 | |
| 2365 | /* By how much did we "miss" the target on that frame */ |
| 2366 | delta = target - vbr_rate; |
| 2367 | |
| 2368 | target=nbAvailableBytes<<(BITRES3+3); |
| 2369 | |
| 2370 | /*If the frame is silent we don't adjust our drift, otherwise |
| 2371 | the encoder will shoot to very high rates after hitting a |
| 2372 | span of silence, but we do allow the bitres to refill. |
| 2373 | This means that we'll undershoot our target in CVBR/VBR modes |
| 2374 | on files with lots of silence. */ |
| 2375 | if(silence) |
| 2376 | { |
| 2377 | nbAvailableBytes = 2; |
| 2378 | target = 2*8<<BITRES3; |
| 2379 | delta = 0; |
| 2380 | } |
| 2381 | |
| 2382 | if (st->vbr_count < 970) |
| 2383 | { |
| 2384 | st->vbr_count++; |
| 2385 | alpha = celt_rcp(SHL32(EXTEND32(st->vbr_count+20),16))(1.f/(((st->vbr_count+20)))); |
| 2386 | } else |
| 2387 | alpha = QCONST16(.001f,15)(.001f); |
| 2388 | /* How many bits have we used in excess of what we're allowed */ |
| 2389 | if (st->constrained_vbr) |
| 2390 | st->vbr_reservoir += target - vbr_rate; |
| 2391 | /*printf ("%d\n", st->vbr_reservoir);*/ |
| 2392 | |
| 2393 | /* Compute the offset we need to apply in order to reach the target */ |
| 2394 | if (st->constrained_vbr) |
| 2395 | { |
| 2396 | st->vbr_drift += (opus_int32)MULT16_32_Q15(alpha,(delta*(1<<lm_diff))-st->vbr_offset-st->vbr_drift)((alpha)*((delta*(1<<lm_diff))-st->vbr_offset-st-> vbr_drift)); |
| 2397 | st->vbr_offset = -st->vbr_drift; |
| 2398 | } |
| 2399 | /*printf ("%d\n", st->vbr_drift);*/ |
| 2400 | |
| 2401 | if (st->constrained_vbr && st->vbr_reservoir < 0) |
| 2402 | { |
| 2403 | /* We're under the min value -- increase rate */ |
| 2404 | int adjust = (-st->vbr_reservoir)/(8<<BITRES3); |
| 2405 | /* Unless we're just coding silence */ |
| 2406 | nbAvailableBytes += silence?0:adjust; |
| 2407 | st->vbr_reservoir = 0; |
| 2408 | /*printf ("+%d\n", adjust);*/ |
| 2409 | } |
| 2410 | nbCompressedBytes = IMIN(nbCompressedBytes,nbAvailableBytes)((nbCompressedBytes) < (nbAvailableBytes) ? (nbCompressedBytes ) : (nbAvailableBytes)); |
| 2411 | /*printf("%d\n", nbCompressedBytes*50*8);*/ |
| 2412 | /* This moves the raw bits to take into account the new compressed size */ |
| 2413 | ec_enc_shrink(enc, nbCompressedBytes); |
| 2414 | } |
| 2415 | |
| 2416 | /* Bit allocation */ |
| 2417 | ALLOC(fine_quant, nbEBands, int)fine_quant = ((int*)__builtin_alloca (sizeof(int)*(nbEBands)) ); |
| 2418 | ALLOC(pulses, nbEBands, int)pulses = ((int*)__builtin_alloca (sizeof(int)*(nbEBands))); |
| 2419 | ALLOC(fine_priority, nbEBands, int)fine_priority = ((int*)__builtin_alloca (sizeof(int)*(nbEBands ))); |
| 2420 | |
| 2421 | /* bits = packet size - where we are - safety*/ |
| 2422 | bits = (((opus_int32)nbCompressedBytes*8)<<BITRES3) - (opus_int32)ec_tell_frac(enc) - 1; |
| 2423 | anti_collapse_rsv = isTransient&&LM>=2&&bits>=((LM+2)<<BITRES3) ? (1<<BITRES3) : 0; |
| 2424 | bits -= anti_collapse_rsv; |
| 2425 | signalBandwidth = end-1; |
| 2426 | #ifndef DISABLE_FLOAT_API |
| 2427 | if (st->analysis.valid) |
| 2428 | { |
| 2429 | int min_bandwidth; |
| 2430 | if (equiv_rate < (opus_int32)32000*C) |
| 2431 | min_bandwidth = 13; |
| 2432 | else if (equiv_rate < (opus_int32)48000*C) |
| 2433 | min_bandwidth = 16; |
| 2434 | else if (equiv_rate < (opus_int32)60000*C) |
| 2435 | min_bandwidth = 18; |
| 2436 | else if (equiv_rate < (opus_int32)80000*C) |
| 2437 | min_bandwidth = 19; |
| 2438 | else |
| 2439 | min_bandwidth = 20; |
| 2440 | signalBandwidth = IMAX(st->analysis.bandwidth, min_bandwidth)((st->analysis.bandwidth) > (min_bandwidth) ? (st->analysis .bandwidth) : (min_bandwidth)); |
| 2441 | } |
| 2442 | #endif |
| 2443 | if (st->lfe) |
| 2444 | signalBandwidth = 1; |
| 2445 | codedBands = clt_compute_allocation(mode, start, end, offsets, cap, |
| 2446 | alloc_trim, &st->intensity, &dual_stereo, bits, &balance, pulses, |
| 2447 | fine_quant, fine_priority, C, LM, enc, 1, st->lastCodedBands, signalBandwidth); |
| 2448 | if (st->lastCodedBands) |
| 2449 | st->lastCodedBands = IMIN(st->lastCodedBands+1,IMAX(st->lastCodedBands-1,codedBands))((st->lastCodedBands+1) < (((st->lastCodedBands-1) > (codedBands) ? (st->lastCodedBands-1) : (codedBands))) ? ( st->lastCodedBands+1) : (((st->lastCodedBands-1) > ( codedBands) ? (st->lastCodedBands-1) : (codedBands)))); |
| 2450 | else |
| 2451 | st->lastCodedBands = codedBands; |
| 2452 | |
| 2453 | quant_fine_energy(mode, start, end, oldBandE, error, fine_quant, enc, C); |
| 2454 | |
| 2455 | /* Residual quantisation */ |
| 2456 | ALLOC(collapse_masks, C*nbEBands, unsigned char)collapse_masks = ((unsigned char*)__builtin_alloca (sizeof(unsigned char)*(C*nbEBands))); |
| 2457 | quant_all_bands(1, mode, start, end, X, C==2 ? X+N : NULL((void*)0), collapse_masks, |
| 2458 | bandE, pulses, shortBlocks, st->spread_decision, |
| 2459 | dual_stereo, st->intensity, tf_res, nbCompressedBytes*(8<<BITRES3)-anti_collapse_rsv, |
| 2460 | balance, enc, LM, codedBands, &st->rng, st->complexity, st->arch, st->disable_inv); |
| 2461 | |
| 2462 | if (anti_collapse_rsv > 0) |
| 2463 | { |
| 2464 | anti_collapse_on = st->consec_transient<2; |
| 2465 | #ifdef FUZZING |
| 2466 | anti_collapse_on = rand()&0x1; |
| 2467 | #endif |
| 2468 | ec_enc_bits(enc, anti_collapse_on, 1); |
| 2469 | } |
| 2470 | quant_energy_finalise(mode, start, end, oldBandE, error, fine_quant, fine_priority, nbCompressedBytes*8-ec_tell(enc), enc, C); |
| 2471 | OPUS_CLEAR(energyError, nbEBands*CC)(memset((energyError), 0, (nbEBands*CC)*sizeof(*(energyError) ))); |
| 2472 | c=0; |
| 2473 | do { |
| 2474 | for (i=start;i<end;i++) |
| 2475 | { |
| 2476 | energyError[i+c*nbEBands] = MAXG(-GCONST(0.5f), MING(GCONST(0.5f), error[i+c*nbEBands]))((-(0.5f)) > ((((0.5f)) < (error[i+c*nbEBands]) ? ((0.5f )) : (error[i+c*nbEBands]))) ? (-(0.5f)) : ((((0.5f)) < (error [i+c*nbEBands]) ? ((0.5f)) : (error[i+c*nbEBands])))); |
| 2477 | } |
| 2478 | } while (++c < C); |
| 2479 | |
| 2480 | if (silence) |
| 2481 | { |
| 2482 | for (i=0;i<C*nbEBands;i++) |
| 2483 | oldBandE[i] = -GCONST(28.f)(28.f); |
| 2484 | } |
| 2485 | |
| 2486 | #ifdef RESYNTH |
| 2487 | /* Re-synthesis of the coded audio if required */ |
| 2488 | { |
| 2489 | celt_sig *out_mem[2]; |
| 2490 | |
| 2491 | if (anti_collapse_on) |
| 2492 | { |
| 2493 | anti_collapse(mode, X, collapse_masks, LM, C, N, |
| 2494 | start, end, oldBandE, oldLogE, oldLogE2, pulses, st->rng, 1, st->arch); |
| 2495 | } |
| 2496 | |
| 2497 | c=0; do { |
| 2498 | OPUS_MOVE(st->syn_mem[c], st->syn_mem[c]+N, 2*MAX_PERIOD-N+overlap/2)(memmove((st->syn_mem[c]), (st->syn_mem[c]+N), (2*1024 - N+overlap/2)*sizeof(*(st->syn_mem[c])) + 0*((st->syn_mem [c])-(st->syn_mem[c]+N)) )); |
| 2499 | } while (++c<CC); |
| 2500 | |
| 2501 | c=0; do { |
| 2502 | out_mem[c] = st->syn_mem[c]+2*MAX_PERIOD1024-N; |
| 2503 | } while (++c<CC); |
| 2504 | |
| 2505 | celt_synthesis(mode, X, out_mem, oldBandE, start, effEnd, |
| 2506 | C, CC, isTransient, LM, st->upsample, silence, st->arch); |
| 2507 | |
| 2508 | c=0; do { |
| 2509 | st->prefilter_period=IMAX(st->prefilter_period, COMBFILTER_MINPERIOD)((st->prefilter_period) > (15) ? (st->prefilter_period ) : (15)); |
| 2510 | st->prefilter_period_old=IMAX(st->prefilter_period_old, COMBFILTER_MINPERIOD)((st->prefilter_period_old) > (15) ? (st->prefilter_period_old ) : (15)); |
| 2511 | comb_filter(out_mem[c], out_mem[c], st->prefilter_period_old, st->prefilter_period, mode->shortMdctSize, |
| 2512 | st->prefilter_gain_old, st->prefilter_gain, st->prefilter_tapset_old, st->prefilter_tapset, |
| 2513 | mode->window, overlap, st->arch); |
| 2514 | if (LM!=0) |
| 2515 | comb_filter(out_mem[c]+mode->shortMdctSize, out_mem[c]+mode->shortMdctSize, st->prefilter_period, pitch_index, N-mode->shortMdctSize, |
| 2516 | st->prefilter_gain, gain1, st->prefilter_tapset, prefilter_tapset, |
| 2517 | mode->window, overlap, st->arch); |
| 2518 | } while (++c<CC); |
| 2519 | |
| 2520 | /* We reuse freq[] as scratch space for the de-emphasis */ |
| 2521 | deemphasis(out_mem, (opus_res*)pcm, N, CC, st->upsample, mode->preemph, st->preemph_memD, 0); |
| 2522 | st->prefilter_period_old = st->prefilter_period; |
| 2523 | st->prefilter_gain_old = st->prefilter_gain; |
| 2524 | st->prefilter_tapset_old = st->prefilter_tapset; |
| 2525 | } |
| 2526 | #endif |
| 2527 | |
| 2528 | st->prefilter_period = pitch_index; |
| 2529 | st->prefilter_gain = gain1; |
| 2530 | st->prefilter_tapset = prefilter_tapset; |
| 2531 | #ifdef RESYNTH |
| 2532 | if (LM!=0) |
| 2533 | { |
| 2534 | st->prefilter_period_old = st->prefilter_period; |
| 2535 | st->prefilter_gain_old = st->prefilter_gain; |
| 2536 | st->prefilter_tapset_old = st->prefilter_tapset; |
| 2537 | } |
| 2538 | #endif |
| 2539 | |
| 2540 | if (CC==2&&C==1) { |
| 2541 | OPUS_COPY(&oldBandE[nbEBands], oldBandE, nbEBands)(memcpy((&oldBandE[nbEBands]), (oldBandE), (nbEBands)*sizeof (*(&oldBandE[nbEBands])) + 0*((&oldBandE[nbEBands])-( oldBandE)) )); |
| 2542 | } |
| 2543 | |
| 2544 | if (!isTransient) |
| 2545 | { |
| 2546 | OPUS_COPY(oldLogE2, oldLogE, CC*nbEBands)(memcpy((oldLogE2), (oldLogE), (CC*nbEBands)*sizeof(*(oldLogE2 )) + 0*((oldLogE2)-(oldLogE)) )); |
| 2547 | OPUS_COPY(oldLogE, oldBandE, CC*nbEBands)(memcpy((oldLogE), (oldBandE), (CC*nbEBands)*sizeof(*(oldLogE )) + 0*((oldLogE)-(oldBandE)) )); |
| 2548 | } else { |
| 2549 | for (i=0;i<CC*nbEBands;i++) |
| 2550 | oldLogE[i] = MING(oldLogE[i], oldBandE[i])((oldLogE[i]) < (oldBandE[i]) ? (oldLogE[i]) : (oldBandE[i ])); |
| 2551 | } |
| 2552 | /* In case start or end were to change */ |
| 2553 | c=0; do |
| 2554 | { |
| 2555 | for (i=0;i<start;i++) |
| 2556 | { |
| 2557 | oldBandE[c*nbEBands+i]=0; |
| 2558 | oldLogE[c*nbEBands+i]=oldLogE2[c*nbEBands+i]=-GCONST(28.f)(28.f); |
| 2559 | } |
| 2560 | for (i=end;i<nbEBands;i++) |
| 2561 | { |
| 2562 | oldBandE[c*nbEBands+i]=0; |
| 2563 | oldLogE[c*nbEBands+i]=oldLogE2[c*nbEBands+i]=-GCONST(28.f)(28.f); |
| 2564 | } |
| 2565 | } while (++c<CC); |
| 2566 | |
| 2567 | if (isTransient || transient_got_disabled) |
| 2568 | st->consec_transient++; |
| 2569 | else |
| 2570 | st->consec_transient=0; |
| 2571 | st->rng = enc->rng; |
| 2572 | |
| 2573 | /* If there's any room left (can only happen for very high rates), |
| 2574 | it's already filled with zeros */ |
| 2575 | ec_enc_done(enc); |
| 2576 | |
| 2577 | #ifdef CUSTOM_MODES |
| 2578 | if (st->signalling) |
| 2579 | nbCompressedBytes++; |
| 2580 | #endif |
| 2581 | |
| 2582 | RESTORE_STACK; |
| 2583 | if (ec_get_error(enc)) |
| 2584 | return OPUS_INTERNAL_ERROR-3; |
| 2585 | else |
| 2586 | return nbCompressedBytes; |
| 2587 | } |
| 2588 | |
| 2589 | |
| 2590 | #ifdef CUSTOM_MODES |
| 2591 | |
| 2592 | #if defined(FIXED_POINT) && !defined(ENABLE_RES24) |
| 2593 | int opus_custom_encode(CELTEncoderOpusCustomEncoder * OPUS_RESTRICTrestrict st, const opus_int16 * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes) |
| 2594 | { |
| 2595 | return celt_encode_with_ec(st, pcm, frame_size, compressed, nbCompressedBytes, NULL((void*)0)); |
| 2596 | } |
| 2597 | #else |
| 2598 | int opus_custom_encode(CELTEncoderOpusCustomEncoder * OPUS_RESTRICTrestrict st, const opus_int16 * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes) |
| 2599 | { |
| 2600 | int j, ret, C, N; |
| 2601 | VARDECL(opus_res, in)opus_res *in; |
| 2602 | ALLOC_STACK; |
| 2603 | |
| 2604 | if (pcm==NULL((void*)0)) |
| 2605 | return OPUS_BAD_ARG-1; |
| 2606 | |
| 2607 | C = st->channels; |
| 2608 | N = frame_size; |
| 2609 | ALLOC(in, C*N, opus_res)in = ((opus_res*)__builtin_alloca (sizeof(opus_res)*(C*N))); |
| 2610 | |
| 2611 | for (j=0;j<C*N;j++) |
| 2612 | in[j] = INT16TORES(pcm[j])((pcm[j])*(1/32768.f)); |
| 2613 | |
| 2614 | ret=celt_encode_with_ec(st,in,frame_size,compressed,nbCompressedBytes, NULL((void*)0)); |
| 2615 | #ifdef RESYNTH |
| 2616 | for (j=0;j<C*N;j++) |
| 2617 | ((opus_int16*)pcm)[j]=RES2INT16(in[j])FLOAT2INT16(in[j]); |
| 2618 | #endif |
| 2619 | RESTORE_STACK; |
| 2620 | return ret; |
| 2621 | } |
| 2622 | #endif |
| 2623 | |
| 2624 | |
| 2625 | #if defined(FIXED_POINT) && defined(ENABLE_RES24) |
| 2626 | int opus_custom_encode24(CELTEncoderOpusCustomEncoder * OPUS_RESTRICTrestrict st, const opus_int32 * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes) |
| 2627 | { |
| 2628 | return celt_encode_with_ec(st, pcm, frame_size, compressed, nbCompressedBytes, NULL((void*)0)); |
| 2629 | } |
| 2630 | #else |
| 2631 | int opus_custom_encode24(CELTEncoderOpusCustomEncoder * OPUS_RESTRICTrestrict st, const opus_int32 * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes) |
| 2632 | { |
| 2633 | int j, ret, C, N; |
| 2634 | VARDECL(opus_res, in)opus_res *in; |
| 2635 | ALLOC_STACK; |
| 2636 | |
| 2637 | if (pcm==NULL((void*)0)) |
| 2638 | return OPUS_BAD_ARG-1; |
| 2639 | |
| 2640 | C = st->channels; |
| 2641 | N = frame_size; |
| 2642 | ALLOC(in, C*N, opus_res)in = ((opus_res*)__builtin_alloca (sizeof(opus_res)*(C*N))); |
| 2643 | |
| 2644 | for (j=0;j<C*N;j++) |
| 2645 | in[j] = INT24TORES(pcm[j])((1.f/32768.f/256.)*(pcm[j])); |
| 2646 | |
| 2647 | ret=celt_encode_with_ec(st,in,frame_size,compressed,nbCompressedBytes, NULL((void*)0)); |
| 2648 | #ifdef RESYNTH |
| 2649 | for (j=0;j<C*N;j++) |
| 2650 | ((opus_int32*)pcm)[j]=RES2INT24(in[j])float2int(32768.f*256.f*(in[j])); |
| 2651 | #endif |
| 2652 | RESTORE_STACK; |
| 2653 | return ret; |
| 2654 | } |
| 2655 | #endif |
| 2656 | |
| 2657 | |
| 2658 | #ifndef DISABLE_FLOAT_API |
| 2659 | |
| 2660 | # if !defined(FIXED_POINT) |
| 2661 | int opus_custom_encode_float(CELTEncoderOpusCustomEncoder * OPUS_RESTRICTrestrict st, const float * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes) |
| 2662 | { |
| 2663 | return celt_encode_with_ec(st, pcm, frame_size, compressed, nbCompressedBytes, NULL((void*)0)); |
| 2664 | } |
| 2665 | # else |
| 2666 | int opus_custom_encode_float(CELTEncoderOpusCustomEncoder * OPUS_RESTRICTrestrict st, const float * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes) |
| 2667 | { |
| 2668 | int j, ret, C, N; |
| 2669 | VARDECL(opus_res, in)opus_res *in; |
| 2670 | ALLOC_STACK; |
| 2671 | |
| 2672 | if (pcm==NULL((void*)0)) |
| 2673 | return OPUS_BAD_ARG-1; |
| 2674 | |
| 2675 | C = st->channels; |
| 2676 | N = frame_size; |
| 2677 | ALLOC(in, C*N, opus_res)in = ((opus_res*)__builtin_alloca (sizeof(opus_res)*(C*N))); |
| 2678 | |
| 2679 | for (j=0;j<C*N;j++) |
| 2680 | in[j] = FLOAT2RES(pcm[j])(pcm[j]); |
| 2681 | |
| 2682 | ret=celt_encode_with_ec(st,in,frame_size,compressed,nbCompressedBytes, NULL((void*)0)); |
| 2683 | #ifdef RESYNTH |
| 2684 | for (j=0;j<C*N;j++) |
| 2685 | ((float*)pcm)[j]=RES2FLOAT(in[j])(in[j]); |
| 2686 | #endif |
| 2687 | RESTORE_STACK; |
| 2688 | return ret; |
| 2689 | } |
| 2690 | # endif |
| 2691 | |
| 2692 | #endif |
| 2693 | |
| 2694 | #endif /* CUSTOM_MODES */ |
| 2695 | |
| 2696 | int opus_custom_encoder_ctl(CELTEncoderOpusCustomEncoder * OPUS_RESTRICTrestrict st, int request, ...) |
| 2697 | { |
| 2698 | va_list ap; |
| 2699 | |
| 2700 | va_start(ap, request)__builtin_va_start(ap, request); |
| 2701 | switch (request) |
| 2702 | { |
| 2703 | case OPUS_SET_COMPLEXITY_REQUEST4010: |
| 2704 | { |
| 2705 | int value = va_arg(ap, opus_int32)__builtin_va_arg(ap, opus_int32); |
| 2706 | if (value<0 || value>10) |
| 2707 | goto bad_arg; |
| 2708 | st->complexity = value; |
| 2709 | } |
| 2710 | break; |
| 2711 | case CELT_SET_START_BAND_REQUEST10010: |
| 2712 | { |
| 2713 | opus_int32 value = va_arg(ap, opus_int32)__builtin_va_arg(ap, opus_int32); |
| 2714 | if (value<0 || value>=st->mode->nbEBands) |
| 2715 | goto bad_arg; |
| 2716 | st->start = value; |
| 2717 | } |
| 2718 | break; |
| 2719 | case CELT_SET_END_BAND_REQUEST10012: |
| 2720 | { |
| 2721 | opus_int32 value = va_arg(ap, opus_int32)__builtin_va_arg(ap, opus_int32); |
| 2722 | if (value<1 || value>st->mode->nbEBands) |
| 2723 | goto bad_arg; |
| 2724 | st->end = value; |
| 2725 | } |
| 2726 | break; |
| 2727 | case CELT_SET_PREDICTION_REQUEST10002: |
| 2728 | { |
| 2729 | int value = va_arg(ap, opus_int32)__builtin_va_arg(ap, opus_int32); |
| 2730 | if (value<0 || value>2) |
| 2731 | goto bad_arg; |
| 2732 | st->disable_pf = value<=1; |
| 2733 | st->force_intra = value==0; |
| 2734 | } |
| 2735 | break; |
| 2736 | case OPUS_SET_PACKET_LOSS_PERC_REQUEST4014: |
| 2737 | { |
| 2738 | int value = va_arg(ap, opus_int32)__builtin_va_arg(ap, opus_int32); |
| 2739 | if (value<0 || value>100) |
| 2740 | goto bad_arg; |
| 2741 | st->loss_rate = value; |
| 2742 | } |
| 2743 | break; |
| 2744 | case OPUS_SET_VBR_CONSTRAINT_REQUEST4020: |
| 2745 | { |
| 2746 | opus_int32 value = va_arg(ap, opus_int32)__builtin_va_arg(ap, opus_int32); |
| 2747 | st->constrained_vbr = value; |
| 2748 | } |
| 2749 | break; |
| 2750 | case OPUS_SET_VBR_REQUEST4006: |
| 2751 | { |
| 2752 | opus_int32 value = va_arg(ap, opus_int32)__builtin_va_arg(ap, opus_int32); |
| 2753 | st->vbr = value; |
| 2754 | } |
| 2755 | break; |
| 2756 | case OPUS_SET_BITRATE_REQUEST4002: |
| 2757 | { |
| 2758 | opus_int32 value = va_arg(ap, opus_int32)__builtin_va_arg(ap, opus_int32); |
| 2759 | if (value<=500 && value!=OPUS_BITRATE_MAX-1) |
| 2760 | goto bad_arg; |
| 2761 | value = IMIN(value, 260000*st->channels)((value) < (260000*st->channels) ? (value) : (260000*st ->channels)); |
| 2762 | st->bitrate = value; |
| 2763 | } |
| 2764 | break; |
| 2765 | case CELT_SET_CHANNELS_REQUEST10008: |
| 2766 | { |
| 2767 | opus_int32 value = va_arg(ap, opus_int32)__builtin_va_arg(ap, opus_int32); |
| 2768 | if (value<1 || value>2) |
| 2769 | goto bad_arg; |
| 2770 | st->stream_channels = value; |
| 2771 | } |
| 2772 | break; |
| 2773 | case OPUS_SET_LSB_DEPTH_REQUEST4036: |
| 2774 | { |
| 2775 | opus_int32 value = va_arg(ap, opus_int32)__builtin_va_arg(ap, opus_int32); |
| 2776 | if (value<8 || value>24) |
| 2777 | goto bad_arg; |
| 2778 | st->lsb_depth=value; |
| 2779 | } |
| 2780 | break; |
| 2781 | case OPUS_GET_LSB_DEPTH_REQUEST4037: |
| 2782 | { |
| 2783 | opus_int32 *value = va_arg(ap, opus_int32*)__builtin_va_arg(ap, opus_int32*); |
| 2784 | *value=st->lsb_depth; |
| 2785 | } |
| 2786 | break; |
| 2787 | case OPUS_SET_PHASE_INVERSION_DISABLED_REQUEST4046: |
| 2788 | { |
| 2789 | opus_int32 value = va_arg(ap, opus_int32)__builtin_va_arg(ap, opus_int32); |
| 2790 | if(value<0 || value>1) |
| 2791 | { |
| 2792 | goto bad_arg; |
| 2793 | } |
| 2794 | st->disable_inv = value; |
| 2795 | } |
| 2796 | break; |
| 2797 | case OPUS_GET_PHASE_INVERSION_DISABLED_REQUEST4047: |
| 2798 | { |
| 2799 | opus_int32 *value = va_arg(ap, opus_int32*)__builtin_va_arg(ap, opus_int32*); |
| 2800 | if (!value) |
| 2801 | { |
| 2802 | goto bad_arg; |
| 2803 | } |
| 2804 | *value = st->disable_inv; |
| 2805 | } |
| 2806 | break; |
| 2807 | case OPUS_RESET_STATE4028: |
| 2808 | { |
| 2809 | int i; |
| 2810 | celt_glog *oldBandE, *oldLogE, *oldLogE2; |
| 2811 | oldBandE = (celt_glog*)(st->in_mem+st->channels*(st->mode->overlap+COMBFILTER_MAXPERIOD1024)); |
| 2812 | oldLogE = oldBandE + st->channels*st->mode->nbEBands; |
| 2813 | oldLogE2 = oldLogE + st->channels*st->mode->nbEBands; |
| 2814 | OPUS_CLEAR((char*)&st->ENCODER_RESET_START,(memset(((char*)&st->rng), 0, (opus_custom_encoder_get_size (st->mode, st->channels)- ((char*)&st->rng - (char *)st))*sizeof(*((char*)&st->rng)))) |
| 2815 | opus_custom_encoder_get_size(st->mode, st->channels)-(memset(((char*)&st->rng), 0, (opus_custom_encoder_get_size (st->mode, st->channels)- ((char*)&st->rng - (char *)st))*sizeof(*((char*)&st->rng)))) |
| 2816 | ((char*)&st->ENCODER_RESET_START - (char*)st))(memset(((char*)&st->rng), 0, (opus_custom_encoder_get_size (st->mode, st->channels)- ((char*)&st->rng - (char *)st))*sizeof(*((char*)&st->rng)))); |
| 2817 | for (i=0;i<st->channels*st->mode->nbEBands;i++) |
| 2818 | oldLogE[i]=oldLogE2[i]=-GCONST(28.f)(28.f); |
| 2819 | st->vbr_offset = 0; |
| 2820 | st->delayedIntra = 1; |
| 2821 | st->spread_decision = SPREAD_NORMAL(2); |
| 2822 | st->tonal_average = 256; |
| 2823 | st->hf_average = 0; |
| 2824 | st->tapset_decision = 0; |
| 2825 | } |
| 2826 | break; |
| 2827 | #ifdef CUSTOM_MODES |
| 2828 | case CELT_SET_INPUT_CLIPPING_REQUEST10004: |
| 2829 | { |
| 2830 | opus_int32 value = va_arg(ap, opus_int32)__builtin_va_arg(ap, opus_int32); |
| 2831 | st->clip = value; |
| 2832 | } |
| 2833 | break; |
| 2834 | #endif |
| 2835 | case CELT_SET_SIGNALLING_REQUEST10016: |
| 2836 | { |
| 2837 | opus_int32 value = va_arg(ap, opus_int32)__builtin_va_arg(ap, opus_int32); |
| 2838 | st->signalling = value; |
| 2839 | } |
| 2840 | break; |
| 2841 | case CELT_SET_ANALYSIS_REQUEST10022: |
| 2842 | { |
| 2843 | AnalysisInfo *info = va_arg(ap, AnalysisInfo *)__builtin_va_arg(ap, AnalysisInfo *); |
| 2844 | if (info) |
| 2845 | OPUS_COPY(&st->analysis, info, 1)(memcpy((&st->analysis), (info), (1)*sizeof(*(&st-> analysis)) + 0*((&st->analysis)-(info)) )); |
| 2846 | } |
| 2847 | break; |
| 2848 | case CELT_SET_SILK_INFO_REQUEST10028: |
| 2849 | { |
| 2850 | SILKInfo *info = va_arg(ap, SILKInfo *)__builtin_va_arg(ap, SILKInfo *); |
| 2851 | if (info) |
| 2852 | OPUS_COPY(&st->silk_info, info, 1)(memcpy((&st->silk_info), (info), (1)*sizeof(*(&st ->silk_info)) + 0*((&st->silk_info)-(info)) )); |
| 2853 | } |
| 2854 | break; |
| 2855 | case CELT_GET_MODE_REQUEST10015: |
| 2856 | { |
| 2857 | const CELTModeOpusCustomMode ** value = va_arg(ap, const CELTMode**)__builtin_va_arg(ap, const OpusCustomMode**); |
| 2858 | if (value==0) |
| 2859 | goto bad_arg; |
| 2860 | *value=st->mode; |
| 2861 | } |
| 2862 | break; |
| 2863 | case OPUS_GET_FINAL_RANGE_REQUEST4031: |
| 2864 | { |
| 2865 | opus_uint32 * value = va_arg(ap, opus_uint32 *)__builtin_va_arg(ap, opus_uint32 *); |
| 2866 | if (value==0) |
| 2867 | goto bad_arg; |
| 2868 | *value=st->rng; |
| 2869 | } |
| 2870 | break; |
| 2871 | case OPUS_SET_LFE_REQUEST10024: |
| 2872 | { |
| 2873 | opus_int32 value = va_arg(ap, opus_int32)__builtin_va_arg(ap, opus_int32); |
| 2874 | st->lfe = value; |
| 2875 | } |
| 2876 | break; |
| 2877 | case OPUS_SET_ENERGY_MASK_REQUEST10026: |
| 2878 | { |
| 2879 | celt_glog *value = va_arg(ap, celt_glog*)__builtin_va_arg(ap, celt_glog*); |
| 2880 | st->energy_mask = value; |
| 2881 | } |
| 2882 | break; |
| 2883 | default: |
| 2884 | goto bad_request; |
| 2885 | } |
| 2886 | va_end(ap)__builtin_va_end(ap); |
| 2887 | return OPUS_OK0; |
| 2888 | bad_arg: |
| 2889 | va_end(ap)__builtin_va_end(ap); |
| 2890 | return OPUS_BAD_ARG-1; |
| 2891 | bad_request: |
| 2892 | va_end(ap)__builtin_va_end(ap); |
| 2893 | return OPUS_UNIMPLEMENTED-5; |
| 2894 | } |