Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1 | /* Copyright (c) 2007-2008 CSIRO |
| 2 | Copyright (c) 2007-2010 Xiph.Org Foundation |
| 3 | Copyright (c) 2008 Gregory Maxwell |
| 4 | Written by Jean-Marc Valin and Gregory Maxwell */ |
| 5 | /* |
| 6 | Redistribution and use in source and binary forms, with or without |
| 7 | modification, are permitted provided that the following conditions |
| 8 | are met: |
| 9 | |
| 10 | - Redistributions of source code must retain the above copyright |
| 11 | notice, this list of conditions and the following disclaimer. |
| 12 | |
| 13 | - Redistributions in binary form must reproduce the above copyright |
| 14 | notice, this list of conditions and the following disclaimer in the |
| 15 | documentation and/or other materials provided with the distribution. |
| 16 | |
| 17 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 18 | ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 19 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 20 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER |
| 21 | OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 22 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 23 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 24 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 25 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 26 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 27 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 28 | */ |
| 29 | |
| 30 | #ifdef HAVE_CONFIG_H |
| 31 | #include "config.h" |
| 32 | #endif |
| 33 | |
Jean-Marc Valin | 1ecb7ea | 2012-11-08 11:25:20 -0500 | [diff] [blame] | 34 | #define CELT_ENCODER_C |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 35 | |
Aurélien Zanelli | cd4c824 | 2013-05-31 15:07:00 +0200 | [diff] [blame] | 36 | #include "cpu_support.h" |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 37 | #include "os_support.h" |
| 38 | #include "mdct.h" |
| 39 | #include <math.h> |
| 40 | #include "celt.h" |
| 41 | #include "pitch.h" |
| 42 | #include "bands.h" |
| 43 | #include "modes.h" |
| 44 | #include "entcode.h" |
| 45 | #include "quant_bands.h" |
| 46 | #include "rate.h" |
| 47 | #include "stack_alloc.h" |
| 48 | #include "mathops.h" |
| 49 | #include "float_cast.h" |
| 50 | #include <stdarg.h> |
| 51 | #include "celt_lpc.h" |
| 52 | #include "vq.h" |
| 53 | |
| 54 | |
| 55 | /** Encoder state |
| 56 | @brief Encoder state |
| 57 | */ |
| 58 | struct OpusCustomEncoder { |
| 59 | const OpusCustomMode *mode; /**< Mode used by the encoder */ |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 60 | int channels; |
| 61 | int stream_channels; |
| 62 | |
| 63 | int force_intra; |
| 64 | int clip; |
| 65 | int disable_pf; |
| 66 | int complexity; |
| 67 | int upsample; |
| 68 | int start, end; |
| 69 | |
| 70 | opus_int32 bitrate; |
| 71 | int vbr; |
| 72 | int signalling; |
| 73 | int constrained_vbr; /* If zero, VBR can do whatever it likes with the rate */ |
| 74 | int loss_rate; |
| 75 | int lsb_depth; |
Jean-Marc Valin | b08c4ca | 2013-04-26 16:32:10 -0400 | [diff] [blame] | 76 | int lfe; |
Jean-Marc Valin | 18a380a | 2016-04-20 13:27:06 -0400 | [diff] [blame] | 77 | int disable_inv; |
Aurélien Zanelli | cd4c824 | 2013-05-31 15:07:00 +0200 | [diff] [blame] | 78 | int arch; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 79 | |
| 80 | /* Everything beyond this point gets cleared on a reset */ |
| 81 | #define ENCODER_RESET_START rng |
| 82 | |
| 83 | opus_uint32 rng; |
| 84 | int spread_decision; |
| 85 | opus_val32 delayedIntra; |
| 86 | int tonal_average; |
| 87 | int lastCodedBands; |
| 88 | int hf_average; |
| 89 | int tapset_decision; |
| 90 | |
| 91 | int prefilter_period; |
| 92 | opus_val16 prefilter_gain; |
| 93 | int prefilter_tapset; |
| 94 | #ifdef RESYNTH |
| 95 | int prefilter_period_old; |
| 96 | opus_val16 prefilter_gain_old; |
| 97 | int prefilter_tapset_old; |
| 98 | #endif |
| 99 | int consec_transient; |
| 100 | AnalysisInfo analysis; |
Jean-Marc Valin | 61714e9 | 2016-04-23 00:34:53 -0400 | [diff] [blame] | 101 | SILKInfo silk_info; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 102 | |
| 103 | opus_val32 preemph_memE[2]; |
| 104 | opus_val32 preemph_memD[2]; |
| 105 | |
| 106 | /* VBR-related parameters */ |
| 107 | opus_int32 vbr_reservoir; |
| 108 | opus_int32 vbr_drift; |
| 109 | opus_int32 vbr_offset; |
| 110 | opus_int32 vbr_count; |
Jean-Marc Valin | b7bd4c2 | 2013-05-18 23:33:48 -0400 | [diff] [blame] | 111 | opus_val32 overlap_max; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 112 | opus_val16 stereo_saving; |
| 113 | int intensity; |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 114 | opus_val16 *energy_mask; |
Jean-Marc Valin | 3c0aa8f | 2013-06-25 14:10:27 -0400 | [diff] [blame] | 115 | opus_val16 spec_avg; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 116 | |
| 117 | #ifdef RESYNTH |
| 118 | /* +MAX_PERIOD/2 to make space for overlap */ |
| 119 | celt_sig syn_mem[2][2*MAX_PERIOD+MAX_PERIOD/2]; |
| 120 | #endif |
| 121 | |
| 122 | celt_sig in_mem[1]; /* Size = channels*mode->overlap */ |
| 123 | /* celt_sig prefilter_mem[], Size = channels*COMBFILTER_MAXPERIOD */ |
| 124 | /* opus_val16 oldBandE[], Size = channels*mode->nbEBands */ |
| 125 | /* opus_val16 oldLogE[], Size = channels*mode->nbEBands */ |
| 126 | /* opus_val16 oldLogE2[], Size = channels*mode->nbEBands */ |
Jean-Marc Valin | 6fccb4b | 2016-07-04 01:06:11 -0400 | [diff] [blame] | 127 | /* opus_val16 energyError[], Size = channels*mode->nbEBands */ |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 128 | }; |
| 129 | |
| 130 | int celt_encoder_get_size(int channels) |
| 131 | { |
| 132 | CELTMode *mode = opus_custom_mode_create(48000, 960, NULL); |
| 133 | return opus_custom_encoder_get_size(mode, channels); |
| 134 | } |
| 135 | |
| 136 | OPUS_CUSTOM_NOSTATIC int opus_custom_encoder_get_size(const CELTMode *mode, int channels) |
| 137 | { |
| 138 | int size = sizeof(struct CELTEncoder) |
| 139 | + (channels*mode->overlap-1)*sizeof(celt_sig) /* celt_sig in_mem[channels*mode->overlap]; */ |
| 140 | + channels*COMBFILTER_MAXPERIOD*sizeof(celt_sig) /* celt_sig prefilter_mem[channels*COMBFILTER_MAXPERIOD]; */ |
Jean-Marc Valin | 6fccb4b | 2016-07-04 01:06:11 -0400 | [diff] [blame] | 141 | + 4*channels*mode->nbEBands*sizeof(opus_val16); /* opus_val16 oldBandE[channels*mode->nbEBands]; */ |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 142 | /* opus_val16 oldLogE[channels*mode->nbEBands]; */ |
| 143 | /* opus_val16 oldLogE2[channels*mode->nbEBands]; */ |
Jean-Marc Valin | 6fccb4b | 2016-07-04 01:06:11 -0400 | [diff] [blame] | 144 | /* opus_val16 energyError[channels*mode->nbEBands]; */ |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 145 | return size; |
| 146 | } |
| 147 | |
| 148 | #ifdef CUSTOM_MODES |
| 149 | CELTEncoder *opus_custom_encoder_create(const CELTMode *mode, int channels, int *error) |
| 150 | { |
| 151 | int ret; |
| 152 | CELTEncoder *st = (CELTEncoder *)opus_alloc(opus_custom_encoder_get_size(mode, channels)); |
| 153 | /* init will handle the NULL case */ |
| 154 | ret = opus_custom_encoder_init(st, mode, channels); |
| 155 | if (ret != OPUS_OK) |
| 156 | { |
| 157 | opus_custom_encoder_destroy(st); |
| 158 | st = NULL; |
| 159 | } |
| 160 | if (error) |
| 161 | *error = ret; |
| 162 | return st; |
| 163 | } |
| 164 | #endif /* CUSTOM_MODES */ |
| 165 | |
Timothy B. Terriberry | 39386e0 | 2013-11-18 13:30:13 -0500 | [diff] [blame] | 166 | static int opus_custom_encoder_init_arch(CELTEncoder *st, const CELTMode *mode, |
| 167 | int channels, int arch) |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 168 | { |
| 169 | if (channels < 0 || channels > 2) |
| 170 | return OPUS_BAD_ARG; |
| 171 | |
| 172 | if (st==NULL || mode==NULL) |
| 173 | return OPUS_ALLOC_FAIL; |
| 174 | |
| 175 | OPUS_CLEAR((char*)st, opus_custom_encoder_get_size(mode, channels)); |
| 176 | |
| 177 | st->mode = mode; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 178 | st->stream_channels = st->channels = channels; |
| 179 | |
| 180 | st->upsample = 1; |
| 181 | st->start = 0; |
| 182 | st->end = st->mode->effEBands; |
| 183 | st->signalling = 1; |
Timothy B. Terriberry | 39386e0 | 2013-11-18 13:30:13 -0500 | [diff] [blame] | 184 | st->arch = arch; |
Aurélien Zanelli | cd4c824 | 2013-05-31 15:07:00 +0200 | [diff] [blame] | 185 | |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 186 | st->constrained_vbr = 1; |
| 187 | st->clip = 1; |
| 188 | |
| 189 | st->bitrate = OPUS_BITRATE_MAX; |
| 190 | st->vbr = 0; |
| 191 | st->force_intra = 0; |
| 192 | st->complexity = 5; |
| 193 | st->lsb_depth=24; |
| 194 | |
| 195 | opus_custom_encoder_ctl(st, OPUS_RESET_STATE); |
| 196 | |
| 197 | return OPUS_OK; |
| 198 | } |
| 199 | |
Jean-Marc Valin | 41e8906 | 2013-11-20 19:34:14 -0500 | [diff] [blame] | 200 | #ifdef CUSTOM_MODES |
| 201 | int opus_custom_encoder_init(CELTEncoder *st, const CELTMode *mode, int channels) |
Timothy B. Terriberry | 39386e0 | 2013-11-18 13:30:13 -0500 | [diff] [blame] | 202 | { |
| 203 | return opus_custom_encoder_init_arch(st, mode, channels, opus_select_arch()); |
| 204 | } |
Jean-Marc Valin | 41e8906 | 2013-11-20 19:34:14 -0500 | [diff] [blame] | 205 | #endif |
Timothy B. Terriberry | 39386e0 | 2013-11-18 13:30:13 -0500 | [diff] [blame] | 206 | |
| 207 | int celt_encoder_init(CELTEncoder *st, opus_int32 sampling_rate, int channels, |
| 208 | int arch) |
| 209 | { |
| 210 | int ret; |
| 211 | ret = opus_custom_encoder_init_arch(st, |
| 212 | opus_custom_mode_create(48000, 960, NULL), channels, arch); |
| 213 | if (ret != OPUS_OK) |
| 214 | return ret; |
| 215 | st->upsample = resampling_factor(sampling_rate); |
| 216 | return OPUS_OK; |
| 217 | } |
| 218 | |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 219 | #ifdef CUSTOM_MODES |
| 220 | void opus_custom_encoder_destroy(CELTEncoder *st) |
| 221 | { |
| 222 | opus_free(st); |
| 223 | } |
| 224 | #endif /* CUSTOM_MODES */ |
| 225 | |
| 226 | |
| 227 | static int transient_analysis(const opus_val32 * OPUS_RESTRICT in, int len, int C, |
Jean-Marc Valin | 7e12239 | 2016-10-29 17:02:36 -0400 | [diff] [blame] | 228 | opus_val16 *tf_estimate, int *tf_chan, int allow_weak_transients, |
Jean-Marc Valin | 90f20c6 | 2016-10-28 16:44:38 -0400 | [diff] [blame] | 229 | int *weak_transient) |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 230 | { |
| 231 | int i; |
| 232 | VARDECL(opus_val16, tmp); |
| 233 | opus_val32 mem0,mem1; |
| 234 | int is_transient = 0; |
| 235 | opus_int32 mask_metric = 0; |
| 236 | int c; |
Jean-Marc Valin | d683c76 | 2012-12-21 16:17:38 -0500 | [diff] [blame] | 237 | opus_val16 tf_max; |
Jean-Marc Valin | 144b6e6 | 2012-11-10 10:13:03 -0500 | [diff] [blame] | 238 | int len2; |
Jean-Marc Valin | 2af92cd | 2016-10-27 14:14:28 -0400 | [diff] [blame] | 239 | /* Forward masking: 6.7 dB/ms. */ |
| 240 | #ifdef FIXED_POINT |
| 241 | int forward_shift = 4; |
| 242 | #else |
| 243 | opus_val16 forward_decay = QCONST16(.0625f,15); |
| 244 | #endif |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 245 | /* Table of 6*64/x, trained on real data to minimize the average error */ |
| 246 | static const unsigned char inv_table[128] = { |
| 247 | 255,255,156,110, 86, 70, 59, 51, 45, 40, 37, 33, 31, 28, 26, 25, |
| 248 | 23, 22, 21, 20, 19, 18, 17, 16, 16, 15, 15, 14, 13, 13, 12, 12, |
| 249 | 12, 12, 11, 11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, |
| 250 | 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, |
| 251 | 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, |
| 252 | 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
| 253 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, |
| 254 | 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, |
| 255 | }; |
| 256 | SAVE_STACK; |
| 257 | ALLOC(tmp, len, opus_val16); |
| 258 | |
Jean-Marc Valin | 90f20c6 | 2016-10-28 16:44:38 -0400 | [diff] [blame] | 259 | *weak_transient = 0; |
Jean-Marc Valin | 2af92cd | 2016-10-27 14:14:28 -0400 | [diff] [blame] | 260 | /* For lower bitrates, let's be more conservative and have a forward masking |
| 261 | decay of 3.3 dB/ms. This avoids having to code transients at very low |
| 262 | bitrate (mostly for hybrid), which can result in unstable energy and/or |
| 263 | partial collapse. */ |
Jean-Marc Valin | 7e12239 | 2016-10-29 17:02:36 -0400 | [diff] [blame] | 264 | if (allow_weak_transients) |
Jean-Marc Valin | 2af92cd | 2016-10-27 14:14:28 -0400 | [diff] [blame] | 265 | { |
| 266 | #ifdef FIXED_POINT |
| 267 | forward_shift = 5; |
| 268 | #else |
| 269 | forward_decay = QCONST16(.03125f,15); |
| 270 | #endif |
| 271 | } |
Jean-Marc Valin | 144b6e6 | 2012-11-10 10:13:03 -0500 | [diff] [blame] | 272 | len2=len/2; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 273 | for (c=0;c<C;c++) |
| 274 | { |
| 275 | opus_val32 mean; |
| 276 | opus_int32 unmask=0; |
| 277 | opus_val32 norm; |
Jean-Marc Valin | 413caa0 | 2012-11-19 16:36:22 -0500 | [diff] [blame] | 278 | opus_val16 maxE; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 279 | mem0=0; |
| 280 | mem1=0; |
| 281 | /* High-pass filter: (1 - 2*z^-1 + z^-2) / (1 - z^-1 + .5*z^-2) */ |
| 282 | for (i=0;i<len;i++) |
| 283 | { |
| 284 | opus_val32 x,y; |
| 285 | x = SHR32(in[i+c*len],SIG_SHIFT); |
| 286 | y = ADD32(mem0, x); |
| 287 | #ifdef FIXED_POINT |
| 288 | mem0 = mem1 + y - SHL32(x,1); |
| 289 | mem1 = x - SHR32(y,1); |
| 290 | #else |
| 291 | mem0 = mem1 + y - 2*x; |
| 292 | mem1 = x - .5f*y; |
| 293 | #endif |
Jean-Marc Valin | 84043f7 | 2016-07-24 17:54:56 -0400 | [diff] [blame] | 294 | tmp[i] = SROUND16(y, 2); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 295 | /*printf("%f ", tmp[i]);*/ |
| 296 | } |
| 297 | /*printf("\n");*/ |
| 298 | /* First few samples are bad because we don't propagate the memory */ |
Jean-Marc Valin | ff07200 | 2013-12-08 23:31:30 -0500 | [diff] [blame] | 299 | OPUS_CLEAR(tmp, 12); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 300 | |
| 301 | #ifdef FIXED_POINT |
| 302 | /* Normalize tmp to max range */ |
| 303 | { |
| 304 | int shift=0; |
Jean-Marc Valin | 84043f7 | 2016-07-24 17:54:56 -0400 | [diff] [blame] | 305 | shift = 14-celt_ilog2(MAX16(1, celt_maxabs16(tmp, len))); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 306 | if (shift!=0) |
| 307 | { |
| 308 | for (i=0;i<len;i++) |
| 309 | tmp[i] = SHL16(tmp[i], shift); |
| 310 | } |
| 311 | } |
| 312 | #endif |
| 313 | |
| 314 | mean=0; |
| 315 | mem0=0; |
Jean-Marc Valin | 413caa0 | 2012-11-19 16:36:22 -0500 | [diff] [blame] | 316 | /* Grouping by two to reduce complexity */ |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 317 | /* Forward pass to compute the post-echo threshold*/ |
Jean-Marc Valin | 144b6e6 | 2012-11-10 10:13:03 -0500 | [diff] [blame] | 318 | for (i=0;i<len2;i++) |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 319 | { |
| 320 | opus_val16 x2 = PSHR32(MULT16_16(tmp[2*i],tmp[2*i]) + MULT16_16(tmp[2*i+1],tmp[2*i+1]),16); |
| 321 | mean += x2; |
| 322 | #ifdef FIXED_POINT |
| 323 | /* FIXME: Use PSHR16() instead */ |
Jean-Marc Valin | 2af92cd | 2016-10-27 14:14:28 -0400 | [diff] [blame] | 324 | tmp[i] = mem0 + PSHR32(x2-mem0,forward_shift); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 325 | #else |
Jean-Marc Valin | 2af92cd | 2016-10-27 14:14:28 -0400 | [diff] [blame] | 326 | tmp[i] = mem0 + MULT16_16_P15(forward_decay,x2-mem0); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 327 | #endif |
| 328 | mem0 = tmp[i]; |
| 329 | } |
| 330 | |
| 331 | mem0=0; |
Jean-Marc Valin | 413caa0 | 2012-11-19 16:36:22 -0500 | [diff] [blame] | 332 | maxE=0; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 333 | /* Backward pass to compute the pre-echo threshold */ |
Jean-Marc Valin | 144b6e6 | 2012-11-10 10:13:03 -0500 | [diff] [blame] | 334 | for (i=len2-1;i>=0;i--) |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 335 | { |
Jean-Marc Valin | 2af92cd | 2016-10-27 14:14:28 -0400 | [diff] [blame] | 336 | /* Backward masking: 13.9 dB/ms. */ |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 337 | #ifdef FIXED_POINT |
| 338 | /* FIXME: Use PSHR16() instead */ |
| 339 | tmp[i] = mem0 + PSHR32(tmp[i]-mem0,3); |
| 340 | #else |
| 341 | tmp[i] = mem0 + MULT16_16_P15(QCONST16(0.125f,15),tmp[i]-mem0); |
| 342 | #endif |
| 343 | mem0 = tmp[i]; |
Jean-Marc Valin | 413caa0 | 2012-11-19 16:36:22 -0500 | [diff] [blame] | 344 | maxE = MAX16(maxE, mem0); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 345 | } |
Jean-Marc Valin | 413caa0 | 2012-11-19 16:36:22 -0500 | [diff] [blame] | 346 | /*for (i=0;i<len2;i++)printf("%f ", tmp[i]/mean);printf("\n");*/ |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 347 | |
Jean-Marc Valin | 413caa0 | 2012-11-19 16:36:22 -0500 | [diff] [blame] | 348 | /* Compute the ratio of the "frame energy" over the harmonic mean of the energy. |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 349 | This essentially corresponds to a bitrate-normalized temporal noise-to-mask |
| 350 | ratio */ |
| 351 | |
Jean-Marc Valin | 413caa0 | 2012-11-19 16:36:22 -0500 | [diff] [blame] | 352 | /* As a compromise with the old transient detector, frame energy is the |
| 353 | geometric mean of the energy and half the max */ |
| 354 | #ifdef FIXED_POINT |
| 355 | /* Costs two sqrt() to avoid overflows */ |
| 356 | mean = MULT16_16(celt_sqrt(mean), celt_sqrt(MULT16_16(maxE,len2>>1))); |
| 357 | #else |
Gregory Maxwell | 5280c71 | 2013-07-15 15:51:24 -0700 | [diff] [blame] | 358 | mean = celt_sqrt(mean * maxE*.5*len2); |
Jean-Marc Valin | 413caa0 | 2012-11-19 16:36:22 -0500 | [diff] [blame] | 359 | #endif |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 360 | /* Inverse of the mean energy in Q15+6 */ |
Jean-Marc Valin | 144b6e6 | 2012-11-10 10:13:03 -0500 | [diff] [blame] | 361 | norm = SHL32(EXTEND32(len2),6+14)/ADD32(EPSILON,SHR32(mean,1)); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 362 | /* Compute harmonic mean discarding the unreliable boundaries |
| 363 | The data is smooth, so we only take 1/4th of the samples */ |
| 364 | unmask=0; |
Jean-Marc Valin | 144b6e6 | 2012-11-10 10:13:03 -0500 | [diff] [blame] | 365 | for (i=12;i<len2-5;i+=4) |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 366 | { |
| 367 | int id; |
| 368 | #ifdef FIXED_POINT |
Jean-Marc Valin | eda57aa | 2015-12-03 14:12:01 -0500 | [diff] [blame] | 369 | id = MAX32(0,MIN32(127,MULT16_32_Q15(tmp[i]+EPSILON,norm))); /* Do not round to nearest */ |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 370 | #else |
Jean-Marc Valin | eda57aa | 2015-12-03 14:12:01 -0500 | [diff] [blame] | 371 | id = (int)MAX32(0,MIN32(127,floor(64*norm*(tmp[i]+EPSILON)))); /* Do not round to nearest */ |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 372 | #endif |
| 373 | unmask += inv_table[id]; |
| 374 | } |
| 375 | /*printf("%d\n", unmask);*/ |
| 376 | /* Normalize, compensate for the 1/4th of the sample and the factor of 6 in the inverse table */ |
Jean-Marc Valin | 144b6e6 | 2012-11-10 10:13:03 -0500 | [diff] [blame] | 377 | unmask = 64*unmask*4/(6*(len2-17)); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 378 | if (unmask>mask_metric) |
| 379 | { |
| 380 | *tf_chan = c; |
| 381 | mask_metric = unmask; |
| 382 | } |
| 383 | } |
Jean-Marc Valin | 413caa0 | 2012-11-19 16:36:22 -0500 | [diff] [blame] | 384 | is_transient = mask_metric>200; |
Jean-Marc Valin | 90f20c6 | 2016-10-28 16:44:38 -0400 | [diff] [blame] | 385 | /* For low bitrates, define "weak transients" that need to be |
| 386 | handled differently to avoid partial collapse. */ |
Jean-Marc Valin | 7e12239 | 2016-10-29 17:02:36 -0400 | [diff] [blame] | 387 | if (allow_weak_transients && is_transient && mask_metric<600) { |
Jean-Marc Valin | 90f20c6 | 2016-10-28 16:44:38 -0400 | [diff] [blame] | 388 | is_transient = 0; |
| 389 | *weak_transient = 1; |
| 390 | } |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 391 | /* Arbitrary metric for VBR boost */ |
Jean-Marc Valin | 413caa0 | 2012-11-19 16:36:22 -0500 | [diff] [blame] | 392 | tf_max = MAX16(0,celt_sqrt(27*mask_metric)-42); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 393 | /* *tf_estimate = 1 + MIN16(1, sqrt(MAX16(0, tf_max-30))/20); */ |
Pedro Becerra | a9b7def | 2013-12-09 16:08:29 -0500 | [diff] [blame] | 394 | *tf_estimate = celt_sqrt(MAX32(0, SHL32(MULT16_16(QCONST16(0.0069,14),MIN16(163,tf_max)),14)-QCONST32(0.139,28))); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 395 | /*printf("%d %f\n", tf_max, mask_metric);*/ |
| 396 | RESTORE_STACK; |
| 397 | #ifdef FUZZING |
| 398 | is_transient = rand()&0x1; |
| 399 | #endif |
| 400 | /*printf("%d %f %d\n", is_transient, (float)*tf_estimate, tf_max);*/ |
| 401 | return is_transient; |
| 402 | } |
| 403 | |
Jean-Marc Valin | 541a472 | 2013-02-17 21:21:30 -0500 | [diff] [blame] | 404 | /* Looks for sudden increases of energy to decide whether we need to patch |
| 405 | the transient decision */ |
Jean-Marc Valin | 9961809 | 2015-12-04 16:42:19 -0500 | [diff] [blame] | 406 | static int patch_transient_decision(opus_val16 *newE, opus_val16 *oldE, int nbEBands, |
| 407 | int start, int end, int C) |
Jean-Marc Valin | 541a472 | 2013-02-17 21:21:30 -0500 | [diff] [blame] | 408 | { |
| 409 | int i, c; |
| 410 | opus_val32 mean_diff=0; |
| 411 | opus_val16 spread_old[26]; |
| 412 | /* Apply an aggressive (-6 dB/Bark) spreading function to the old frame to |
| 413 | avoid false detection caused by irrelevant bands */ |
| 414 | if (C==1) |
| 415 | { |
Jean-Marc Valin | 9961809 | 2015-12-04 16:42:19 -0500 | [diff] [blame] | 416 | spread_old[start] = oldE[start]; |
| 417 | for (i=start+1;i<end;i++) |
Stefan Hacker | a32fa31 | 2013-09-20 04:07:53 +0200 | [diff] [blame] | 418 | spread_old[i] = MAX16(spread_old[i-1]-QCONST16(1.0f, DB_SHIFT), oldE[i]); |
Jean-Marc Valin | 541a472 | 2013-02-17 21:21:30 -0500 | [diff] [blame] | 419 | } else { |
Jean-Marc Valin | 9961809 | 2015-12-04 16:42:19 -0500 | [diff] [blame] | 420 | spread_old[start] = MAX16(oldE[start],oldE[start+nbEBands]); |
| 421 | for (i=start+1;i<end;i++) |
Jean-Marc Valin | 541a472 | 2013-02-17 21:21:30 -0500 | [diff] [blame] | 422 | spread_old[i] = MAX16(spread_old[i-1]-QCONST16(1.0f, DB_SHIFT), |
Stefan Hacker | a32fa31 | 2013-09-20 04:07:53 +0200 | [diff] [blame] | 423 | MAX16(oldE[i],oldE[i+nbEBands])); |
Jean-Marc Valin | 541a472 | 2013-02-17 21:21:30 -0500 | [diff] [blame] | 424 | } |
Jean-Marc Valin | 9961809 | 2015-12-04 16:42:19 -0500 | [diff] [blame] | 425 | for (i=end-2;i>=start;i--) |
Jean-Marc Valin | 541a472 | 2013-02-17 21:21:30 -0500 | [diff] [blame] | 426 | spread_old[i] = MAX16(spread_old[i], spread_old[i+1]-QCONST16(1.0f, DB_SHIFT)); |
| 427 | /* Compute mean increase */ |
| 428 | c=0; do { |
Jean-Marc Valin | 9961809 | 2015-12-04 16:42:19 -0500 | [diff] [blame] | 429 | for (i=IMAX(2,start);i<end-1;i++) |
Jean-Marc Valin | 541a472 | 2013-02-17 21:21:30 -0500 | [diff] [blame] | 430 | { |
| 431 | opus_val16 x1, x2; |
Jean-Marc Valin | 9961809 | 2015-12-04 16:42:19 -0500 | [diff] [blame] | 432 | x1 = MAX16(0, newE[i + c*nbEBands]); |
Jean-Marc Valin | 541a472 | 2013-02-17 21:21:30 -0500 | [diff] [blame] | 433 | x2 = MAX16(0, spread_old[i]); |
| 434 | mean_diff = ADD32(mean_diff, EXTEND32(MAX16(0, SUB16(x1, x2)))); |
| 435 | } |
| 436 | } while (++c<C); |
Jean-Marc Valin | 9961809 | 2015-12-04 16:42:19 -0500 | [diff] [blame] | 437 | mean_diff = DIV32(mean_diff, C*(end-1-IMAX(2,start))); |
Jean-Marc Valin | 541a472 | 2013-02-17 21:21:30 -0500 | [diff] [blame] | 438 | /*printf("%f %f %d\n", mean_diff, max_diff, count);*/ |
| 439 | return mean_diff > QCONST16(1.f, DB_SHIFT); |
| 440 | } |
| 441 | |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 442 | /** Apply window and compute the MDCT for all sub-frames and |
| 443 | all channels in a frame */ |
Jean-Marc Valin | 851f803 | 2013-02-18 01:43:43 -0500 | [diff] [blame] | 444 | static void compute_mdcts(const CELTMode *mode, int shortBlocks, celt_sig * OPUS_RESTRICT in, |
Viswanath Puttagunta | f48abe8 | 2015-05-15 12:42:19 -0500 | [diff] [blame] | 445 | celt_sig * OPUS_RESTRICT out, int C, int CC, int LM, int upsample, |
| 446 | int arch) |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 447 | { |
Jean-Marc Valin | e1f8462 | 2013-12-29 18:45:49 -0500 | [diff] [blame] | 448 | const int overlap = mode->overlap; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 449 | int N; |
| 450 | int B; |
| 451 | int shift; |
Jean-Marc Valin | 851f803 | 2013-02-18 01:43:43 -0500 | [diff] [blame] | 452 | int i, b, c; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 453 | if (shortBlocks) |
| 454 | { |
| 455 | B = shortBlocks; |
| 456 | N = mode->shortMdctSize; |
| 457 | shift = mode->maxLM; |
| 458 | } else { |
| 459 | B = 1; |
| 460 | N = mode->shortMdctSize<<LM; |
| 461 | shift = mode->maxLM-LM; |
| 462 | } |
| 463 | c=0; do { |
| 464 | for (b=0;b<B;b++) |
| 465 | { |
| 466 | /* Interleaving the sub-frames while doing the MDCTs */ |
Viswanath Puttagunta | f48abe8 | 2015-05-15 12:42:19 -0500 | [diff] [blame] | 467 | clt_mdct_forward(&mode->mdct, in+c*(B*N+overlap)+b*N, |
| 468 | &out[b+c*N*B], mode->window, overlap, shift, B, |
| 469 | arch); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 470 | } |
Jean-Marc Valin | 851f803 | 2013-02-18 01:43:43 -0500 | [diff] [blame] | 471 | } while (++c<CC); |
| 472 | if (CC==2&&C==1) |
| 473 | { |
| 474 | for (i=0;i<B*N;i++) |
| 475 | out[i] = ADD32(HALF32(out[i]), HALF32(out[B*N+i])); |
| 476 | } |
| 477 | if (upsample != 1) |
| 478 | { |
| 479 | c=0; do |
| 480 | { |
| 481 | int bound = B*N/upsample; |
| 482 | for (i=0;i<bound;i++) |
| 483 | out[c*B*N+i] *= upsample; |
Jean-Marc Valin | ff07200 | 2013-12-08 23:31:30 -0500 | [diff] [blame] | 484 | OPUS_CLEAR(&out[c*B*N+bound], B*N-bound); |
Jean-Marc Valin | 851f803 | 2013-02-18 01:43:43 -0500 | [diff] [blame] | 485 | } while (++c<C); |
| 486 | } |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 487 | } |
| 488 | |
| 489 | |
Jean-Marc Valin | 2dc27df | 2013-11-13 19:35:43 -0500 | [diff] [blame] | 490 | void celt_preemphasis(const opus_val16 * OPUS_RESTRICT pcmp, celt_sig * OPUS_RESTRICT inp, |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 491 | int N, int CC, int upsample, const opus_val16 *coef, celt_sig *mem, int clip) |
| 492 | { |
| 493 | int i; |
Jean-Marc Valin | e368e62 | 2013-01-03 14:28:28 -0500 | [diff] [blame] | 494 | opus_val16 coef0; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 495 | celt_sig m; |
| 496 | int Nu; |
| 497 | |
| 498 | coef0 = coef[0]; |
Jean-Marc Valin | 5626908 | 2013-12-05 16:40:59 -0500 | [diff] [blame] | 499 | m = *mem; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 500 | |
Jean-Marc Valin | c94e4bb | 2013-12-08 03:31:50 -0500 | [diff] [blame] | 501 | /* Fast path for the normal 48kHz case and no clipping */ |
| 502 | if (coef[1] == 0 && upsample == 1 && !clip) |
Jean-Marc Valin | 5626908 | 2013-12-05 16:40:59 -0500 | [diff] [blame] | 503 | { |
| 504 | for (i=0;i<N;i++) |
| 505 | { |
| 506 | opus_val16 x; |
| 507 | x = SCALEIN(pcmp[CC*i]); |
| 508 | /* Apply pre-emphasis */ |
| 509 | inp[i] = SHL32(x, SIG_SHIFT) - m; |
| 510 | m = SHR32(MULT16_16(coef0, x), 15-SIG_SHIFT); |
| 511 | } |
| 512 | *mem = m; |
| 513 | return; |
| 514 | } |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 515 | |
| 516 | Nu = N/upsample; |
| 517 | if (upsample!=1) |
| 518 | { |
Jean-Marc Valin | ff07200 | 2013-12-08 23:31:30 -0500 | [diff] [blame] | 519 | OPUS_CLEAR(inp, N); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 520 | } |
| 521 | for (i=0;i<Nu;i++) |
Jean-Marc Valin | c94e4bb | 2013-12-08 03:31:50 -0500 | [diff] [blame] | 522 | inp[i*upsample] = SCALEIN(pcmp[CC*i]); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 523 | |
| 524 | #ifndef FIXED_POINT |
| 525 | if (clip) |
| 526 | { |
| 527 | /* Clip input to avoid encoding non-portable files */ |
| 528 | for (i=0;i<Nu;i++) |
| 529 | inp[i*upsample] = MAX32(-65536.f, MIN32(65536.f,inp[i*upsample])); |
| 530 | } |
Jean-Marc Valin | d6eb9c4 | 2013-11-25 22:33:43 -0500 | [diff] [blame] | 531 | #else |
| 532 | (void)clip; /* Avoids a warning about clip being unused. */ |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 533 | #endif |
Jean-Marc Valin | e368e62 | 2013-01-03 14:28:28 -0500 | [diff] [blame] | 534 | #ifdef CUSTOM_MODES |
| 535 | if (coef[1] != 0) |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 536 | { |
Jean-Marc Valin | e368e62 | 2013-01-03 14:28:28 -0500 | [diff] [blame] | 537 | opus_val16 coef1 = coef[1]; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 538 | opus_val16 coef2 = coef[2]; |
| 539 | for (i=0;i<N;i++) |
| 540 | { |
Jean-Marc Valin | 96408b6 | 2013-12-02 20:02:37 -0500 | [diff] [blame] | 541 | celt_sig x, tmp; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 542 | x = inp[i]; |
| 543 | /* Apply pre-emphasis */ |
| 544 | tmp = MULT16_16(coef2, x); |
| 545 | inp[i] = tmp + m; |
| 546 | m = MULT16_32_Q15(coef1, inp[i]) - MULT16_32_Q15(coef0, tmp); |
| 547 | } |
Jean-Marc Valin | e368e62 | 2013-01-03 14:28:28 -0500 | [diff] [blame] | 548 | } else |
Jean-Marc Valin | ebdfbfb | 2013-01-09 11:13:00 -0500 | [diff] [blame] | 549 | #endif |
Jean-Marc Valin | e368e62 | 2013-01-03 14:28:28 -0500 | [diff] [blame] | 550 | { |
| 551 | for (i=0;i<N;i++) |
| 552 | { |
Jean-Marc Valin | aed1009 | 2013-12-05 13:36:48 -0500 | [diff] [blame] | 553 | opus_val16 x; |
| 554 | x = inp[i]; |
Jean-Marc Valin | e368e62 | 2013-01-03 14:28:28 -0500 | [diff] [blame] | 555 | /* Apply pre-emphasis */ |
Jean-Marc Valin | aed1009 | 2013-12-05 13:36:48 -0500 | [diff] [blame] | 556 | inp[i] = SHL32(x, SIG_SHIFT) - m; |
| 557 | m = SHR32(MULT16_16(coef0, x), 15-SIG_SHIFT); |
Jean-Marc Valin | e368e62 | 2013-01-03 14:28:28 -0500 | [diff] [blame] | 558 | } |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 559 | } |
| 560 | *mem = m; |
| 561 | } |
| 562 | |
| 563 | |
| 564 | |
| 565 | static opus_val32 l1_metric(const celt_norm *tmp, int N, int LM, opus_val16 bias) |
| 566 | { |
| 567 | int i; |
| 568 | opus_val32 L1; |
| 569 | L1 = 0; |
| 570 | for (i=0;i<N;i++) |
| 571 | L1 += EXTEND32(ABS16(tmp[i])); |
| 572 | /* When in doubt, prefer good freq resolution */ |
| 573 | L1 = MAC16_32_Q15(L1, LM*bias, L1); |
| 574 | return L1; |
| 575 | |
| 576 | } |
| 577 | |
Jean-Marc Valin | a6d663c | 2012-11-08 13:26:49 -0500 | [diff] [blame] | 578 | static int tf_analysis(const CELTMode *m, int len, int isTransient, |
| 579 | int *tf_res, int lambda, celt_norm *X, int N0, int LM, |
Jean-Marc Valin | 2ca6df0 | 2016-06-08 02:15:21 -0400 | [diff] [blame] | 580 | opus_val16 tf_estimate, int tf_chan) |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 581 | { |
| 582 | int i; |
| 583 | VARDECL(int, metric); |
| 584 | int cost0; |
| 585 | int cost1; |
| 586 | VARDECL(int, path0); |
| 587 | VARDECL(int, path1); |
| 588 | VARDECL(celt_norm, tmp); |
| 589 | VARDECL(celt_norm, tmp_1); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 590 | int sel; |
| 591 | int selcost[2]; |
| 592 | int tf_select=0; |
| 593 | opus_val16 bias; |
| 594 | |
| 595 | SAVE_STACK; |
Jean-Marc Valin | dae16fb | 2012-12-13 21:40:58 -0500 | [diff] [blame] | 596 | bias = MULT16_16_Q14(QCONST16(.04f,15), MAX16(-QCONST16(.25f,14), QCONST16(.5f,14)-tf_estimate)); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 597 | /*printf("%f ", bias);*/ |
| 598 | |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 599 | ALLOC(metric, len, int); |
| 600 | ALLOC(tmp, (m->eBands[len]-m->eBands[len-1])<<LM, celt_norm); |
| 601 | ALLOC(tmp_1, (m->eBands[len]-m->eBands[len-1])<<LM, celt_norm); |
| 602 | ALLOC(path0, len, int); |
| 603 | ALLOC(path1, len, int); |
| 604 | |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 605 | for (i=0;i<len;i++) |
| 606 | { |
Jean-Marc Valin | 57cd849 | 2013-12-09 02:33:42 -0500 | [diff] [blame] | 607 | int k, N; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 608 | int narrow; |
| 609 | opus_val32 L1, best_L1; |
| 610 | int best_level=0; |
| 611 | N = (m->eBands[i+1]-m->eBands[i])<<LM; |
| 612 | /* band is too narrow to be split down to LM=-1 */ |
| 613 | narrow = (m->eBands[i+1]-m->eBands[i])==1; |
Jean-Marc Valin | ff07200 | 2013-12-08 23:31:30 -0500 | [diff] [blame] | 614 | OPUS_COPY(tmp, &X[tf_chan*N0 + (m->eBands[i]<<LM)], N); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 615 | /* Just add the right channel if we're in stereo */ |
| 616 | /*if (C==2) |
| 617 | for (j=0;j<N;j++) |
| 618 | tmp[j] = ADD16(SHR16(tmp[j], 1),SHR16(X[N0+j+(m->eBands[i]<<LM)], 1));*/ |
| 619 | L1 = l1_metric(tmp, N, isTransient ? LM : 0, bias); |
| 620 | best_L1 = L1; |
| 621 | /* Check the -1 case for transients */ |
| 622 | if (isTransient && !narrow) |
| 623 | { |
Jean-Marc Valin | ff07200 | 2013-12-08 23:31:30 -0500 | [diff] [blame] | 624 | OPUS_COPY(tmp_1, tmp, N); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 625 | haar1(tmp_1, N>>LM, 1<<LM); |
| 626 | L1 = l1_metric(tmp_1, N, LM+1, bias); |
| 627 | if (L1<best_L1) |
| 628 | { |
| 629 | best_L1 = L1; |
| 630 | best_level = -1; |
| 631 | } |
| 632 | } |
| 633 | /*printf ("%f ", L1);*/ |
| 634 | for (k=0;k<LM+!(isTransient||narrow);k++) |
| 635 | { |
| 636 | int B; |
| 637 | |
| 638 | if (isTransient) |
| 639 | B = (LM-k-1); |
| 640 | else |
| 641 | B = k+1; |
| 642 | |
| 643 | haar1(tmp, N>>k, 1<<k); |
| 644 | |
| 645 | L1 = l1_metric(tmp, N, B, bias); |
| 646 | |
| 647 | if (L1 < best_L1) |
| 648 | { |
| 649 | best_L1 = L1; |
| 650 | best_level = k+1; |
| 651 | } |
| 652 | } |
| 653 | /*printf ("%d ", isTransient ? LM-best_level : best_level);*/ |
| 654 | /* metric is in Q1 to be able to select the mid-point (-0.5) for narrower bands */ |
| 655 | if (isTransient) |
| 656 | metric[i] = 2*best_level; |
| 657 | else |
| 658 | metric[i] = -2*best_level; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 659 | /* For bands that can't be split to -1, set the metric to the half-way point to avoid |
| 660 | biasing the decision */ |
| 661 | if (narrow && (metric[i]==0 || metric[i]==-2*LM)) |
| 662 | metric[i]-=1; |
| 663 | /*printf("%d ", metric[i]);*/ |
| 664 | } |
| 665 | /*printf("\n");*/ |
| 666 | /* Search for the optimal tf resolution, including tf_select */ |
| 667 | tf_select = 0; |
| 668 | for (sel=0;sel<2;sel++) |
| 669 | { |
| 670 | cost0 = 0; |
| 671 | cost1 = isTransient ? 0 : lambda; |
| 672 | for (i=1;i<len;i++) |
| 673 | { |
| 674 | int curr0, curr1; |
| 675 | curr0 = IMIN(cost0, cost1 + lambda); |
| 676 | curr1 = IMIN(cost0 + lambda, cost1); |
| 677 | cost0 = curr0 + abs(metric[i]-2*tf_select_table[LM][4*isTransient+2*sel+0]); |
| 678 | cost1 = curr1 + abs(metric[i]-2*tf_select_table[LM][4*isTransient+2*sel+1]); |
| 679 | } |
| 680 | cost0 = IMIN(cost0, cost1); |
| 681 | selcost[sel]=cost0; |
| 682 | } |
| 683 | /* For now, we're conservative and only allow tf_select=1 for transients. |
| 684 | * If tests confirm it's useful for non-transients, we could allow it. */ |
| 685 | if (selcost[1]<selcost[0] && isTransient) |
| 686 | tf_select=1; |
| 687 | cost0 = 0; |
| 688 | cost1 = isTransient ? 0 : lambda; |
| 689 | /* Viterbi forward pass */ |
| 690 | for (i=1;i<len;i++) |
| 691 | { |
| 692 | int curr0, curr1; |
| 693 | int from0, from1; |
| 694 | |
| 695 | from0 = cost0; |
| 696 | from1 = cost1 + lambda; |
| 697 | if (from0 < from1) |
| 698 | { |
| 699 | curr0 = from0; |
| 700 | path0[i]= 0; |
| 701 | } else { |
| 702 | curr0 = from1; |
| 703 | path0[i]= 1; |
| 704 | } |
| 705 | |
| 706 | from0 = cost0 + lambda; |
| 707 | from1 = cost1; |
| 708 | if (from0 < from1) |
| 709 | { |
| 710 | curr1 = from0; |
| 711 | path1[i]= 0; |
| 712 | } else { |
| 713 | curr1 = from1; |
| 714 | path1[i]= 1; |
| 715 | } |
| 716 | cost0 = curr0 + abs(metric[i]-2*tf_select_table[LM][4*isTransient+2*tf_select+0]); |
| 717 | cost1 = curr1 + abs(metric[i]-2*tf_select_table[LM][4*isTransient+2*tf_select+1]); |
| 718 | } |
| 719 | tf_res[len-1] = cost0 < cost1 ? 0 : 1; |
| 720 | /* Viterbi backward pass to check the decisions */ |
| 721 | for (i=len-2;i>=0;i--) |
| 722 | { |
| 723 | if (tf_res[i+1] == 1) |
| 724 | tf_res[i] = path1[i+1]; |
| 725 | else |
| 726 | tf_res[i] = path0[i+1]; |
| 727 | } |
| 728 | /*printf("%d %f\n", *tf_sum, tf_estimate);*/ |
| 729 | RESTORE_STACK; |
| 730 | #ifdef FUZZING |
| 731 | tf_select = rand()&0x1; |
| 732 | tf_res[0] = rand()&0x1; |
| 733 | for (i=1;i<len;i++) |
| 734 | tf_res[i] = tf_res[i-1] ^ ((rand()&0xF) == 0); |
| 735 | #endif |
| 736 | return tf_select; |
| 737 | } |
| 738 | |
| 739 | static void tf_encode(int start, int end, int isTransient, int *tf_res, int LM, int tf_select, ec_enc *enc) |
| 740 | { |
| 741 | int curr, i; |
| 742 | int tf_select_rsv; |
| 743 | int tf_changed; |
| 744 | int logp; |
| 745 | opus_uint32 budget; |
| 746 | opus_uint32 tell; |
| 747 | budget = enc->storage*8; |
| 748 | tell = ec_tell(enc); |
| 749 | logp = isTransient ? 2 : 4; |
| 750 | /* Reserve space to code the tf_select decision. */ |
| 751 | tf_select_rsv = LM>0 && tell+logp+1 <= budget; |
| 752 | budget -= tf_select_rsv; |
| 753 | curr = tf_changed = 0; |
| 754 | for (i=start;i<end;i++) |
| 755 | { |
| 756 | if (tell+logp<=budget) |
| 757 | { |
| 758 | ec_enc_bit_logp(enc, tf_res[i] ^ curr, logp); |
| 759 | tell = ec_tell(enc); |
| 760 | curr = tf_res[i]; |
| 761 | tf_changed |= curr; |
| 762 | } |
| 763 | else |
| 764 | tf_res[i] = curr; |
| 765 | logp = isTransient ? 4 : 5; |
| 766 | } |
| 767 | /* Only code tf_select if it would actually make a difference. */ |
| 768 | if (tf_select_rsv && |
| 769 | tf_select_table[LM][4*isTransient+0+tf_changed]!= |
| 770 | tf_select_table[LM][4*isTransient+2+tf_changed]) |
| 771 | ec_enc_bit_logp(enc, tf_select, 1); |
| 772 | else |
| 773 | tf_select = 0; |
| 774 | for (i=start;i<end;i++) |
| 775 | tf_res[i] = tf_select_table[LM][4*isTransient+2*tf_select+tf_res[i]]; |
| 776 | /*for(i=0;i<end;i++)printf("%d ", isTransient ? tf_res[i] : LM+tf_res[i]);printf("\n");*/ |
| 777 | } |
| 778 | |
| 779 | |
| 780 | static int alloc_trim_analysis(const CELTMode *m, const celt_norm *X, |
| 781 | const opus_val16 *bandLogE, int end, int LM, int C, int N0, |
| 782 | AnalysisInfo *analysis, opus_val16 *stereo_saving, opus_val16 tf_estimate, |
Jean-Marc Valin | a671ac5 | 2017-05-24 01:07:20 -0400 | [diff] [blame] | 783 | int intensity, opus_val16 surround_trim, opus_int32 equiv_rate, int arch) |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 784 | { |
| 785 | int i; |
| 786 | opus_val32 diff=0; |
| 787 | int c; |
Jean-Marc Valin | 4a168eb | 2013-12-11 01:34:06 -0500 | [diff] [blame] | 788 | int trim_index; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 789 | opus_val16 trim = QCONST16(5.f, 8); |
| 790 | opus_val16 logXC, logXC2; |
Jean-Marc Valin | a671ac5 | 2017-05-24 01:07:20 -0400 | [diff] [blame] | 791 | /* At low bitrate, reducing the trim seems to help. At higher bitrates, it's less |
| 792 | clear what's best, so we're keeping it as it was before, at least for now. */ |
| 793 | if (equiv_rate < 64000) { |
| 794 | trim = QCONST16(4.f, 8); |
| 795 | } else if (equiv_rate < 80000) { |
| 796 | opus_int32 frac = (equiv_rate-64000) >> 10; |
Jean-Marc Valin | 59b907c | 2017-05-24 14:21:08 -0400 | [diff] [blame] | 797 | trim = QCONST16(4.f, 8) + QCONST16(1.f/16.f, 8)*frac; |
Jean-Marc Valin | a671ac5 | 2017-05-24 01:07:20 -0400 | [diff] [blame] | 798 | } |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 799 | if (C==2) |
| 800 | { |
| 801 | opus_val16 sum = 0; /* Q10 */ |
| 802 | opus_val16 minXC; /* Q10 */ |
| 803 | /* Compute inter-channel correlation for low frequencies */ |
| 804 | for (i=0;i<8;i++) |
| 805 | { |
Jean-Marc Valin | 57cd849 | 2013-12-09 02:33:42 -0500 | [diff] [blame] | 806 | opus_val32 partial; |
xiangmingzhu | c95c9a0 | 2014-04-30 15:48:07 +0800 | [diff] [blame] | 807 | partial = celt_inner_prod(&X[m->eBands[i]<<LM], &X[N0+(m->eBands[i]<<LM)], |
| 808 | (m->eBands[i+1]-m->eBands[i])<<LM, arch); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 809 | sum = ADD16(sum, EXTRACT16(SHR32(partial, 18))); |
| 810 | } |
| 811 | sum = MULT16_16_Q15(QCONST16(1.f/8, 15), sum); |
| 812 | sum = MIN16(QCONST16(1.f, 10), ABS16(sum)); |
| 813 | minXC = sum; |
| 814 | for (i=8;i<intensity;i++) |
| 815 | { |
Jean-Marc Valin | 57cd849 | 2013-12-09 02:33:42 -0500 | [diff] [blame] | 816 | opus_val32 partial; |
xiangmingzhu | c95c9a0 | 2014-04-30 15:48:07 +0800 | [diff] [blame] | 817 | partial = celt_inner_prod(&X[m->eBands[i]<<LM], &X[N0+(m->eBands[i]<<LM)], |
| 818 | (m->eBands[i+1]-m->eBands[i])<<LM, arch); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 819 | minXC = MIN16(minXC, ABS16(EXTRACT16(SHR32(partial, 18)))); |
| 820 | } |
| 821 | minXC = MIN16(QCONST16(1.f, 10), ABS16(minXC)); |
| 822 | /*printf ("%f\n", sum);*/ |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 823 | /* mid-side savings estimations based on the LF average*/ |
| 824 | logXC = celt_log2(QCONST32(1.001f, 20)-MULT16_16(sum, sum)); |
| 825 | /* mid-side savings estimations based on min correlation */ |
| 826 | logXC2 = MAX16(HALF16(logXC), celt_log2(QCONST32(1.001f, 20)-MULT16_16(minXC, minXC))); |
| 827 | #ifdef FIXED_POINT |
| 828 | /* Compensate for Q20 vs Q14 input and convert output to Q8 */ |
| 829 | logXC = PSHR32(logXC-QCONST16(6.f, DB_SHIFT),DB_SHIFT-8); |
| 830 | logXC2 = PSHR32(logXC2-QCONST16(6.f, DB_SHIFT),DB_SHIFT-8); |
| 831 | #endif |
| 832 | |
| 833 | trim += MAX16(-QCONST16(4.f, 8), MULT16_16_Q15(QCONST16(.75f,15),logXC)); |
| 834 | *stereo_saving = MIN16(*stereo_saving + QCONST16(0.25f, 8), -HALF16(logXC2)); |
| 835 | } |
| 836 | |
| 837 | /* Estimate spectral tilt */ |
| 838 | c=0; do { |
| 839 | for (i=0;i<end-1;i++) |
| 840 | { |
| 841 | diff += bandLogE[i+c*m->nbEBands]*(opus_int32)(2+2*i-end); |
| 842 | } |
| 843 | } while (++c<C); |
| 844 | diff /= C*(end-1); |
| 845 | /*printf("%f\n", diff);*/ |
Jean-Marc Valin | 3609a22 | 2017-05-24 01:21:51 -0400 | [diff] [blame] | 846 | trim -= MAX32(-QCONST16(2.f, 8), MIN32(QCONST16(2.f, 8), SHR32(diff+QCONST16(1.f, DB_SHIFT),DB_SHIFT-8)/6 )); |
Jean-Marc Valin | 0f68696 | 2013-09-05 12:49:55 -0400 | [diff] [blame] | 847 | trim -= SHR16(surround_trim, DB_SHIFT-8); |
Jean-Marc Valin | dae16fb | 2012-12-13 21:40:58 -0500 | [diff] [blame] | 848 | trim -= 2*SHR16(tf_estimate, 14-8); |
Jean-Marc Valin | 3ab03e0 | 2013-09-06 16:00:39 -0400 | [diff] [blame] | 849 | #ifndef DISABLE_FLOAT_API |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 850 | if (analysis->valid) |
| 851 | { |
Jean-Marc Valin | a71c9ad | 2013-11-13 12:07:01 -0500 | [diff] [blame] | 852 | trim -= MAX16(-QCONST16(2.f, 8), MIN16(QCONST16(2.f, 8), |
| 853 | (opus_val16)(QCONST16(2.f, 8)*(analysis->tonality_slope+.05f)))); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 854 | } |
Timothy B. Terriberry | 23f503a | 2014-12-26 08:31:39 -0800 | [diff] [blame] | 855 | #else |
| 856 | (void)analysis; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 857 | #endif |
| 858 | |
| 859 | #ifdef FIXED_POINT |
| 860 | trim_index = PSHR32(trim, 8); |
| 861 | #else |
Jean-Marc Valin | d683c76 | 2012-12-21 16:17:38 -0500 | [diff] [blame] | 862 | trim_index = (int)floor(.5f+trim); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 863 | #endif |
Jean-Marc Valin | 4a168eb | 2013-12-11 01:34:06 -0500 | [diff] [blame] | 864 | trim_index = IMAX(0, IMIN(10, trim_index)); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 865 | /*printf("%d\n", trim_index);*/ |
| 866 | #ifdef FUZZING |
| 867 | trim_index = rand()%11; |
| 868 | #endif |
| 869 | return trim_index; |
| 870 | } |
| 871 | |
| 872 | static int stereo_analysis(const CELTMode *m, const celt_norm *X, |
| 873 | int LM, int N0) |
| 874 | { |
| 875 | int i; |
| 876 | int thetas; |
| 877 | opus_val32 sumLR = EPSILON, sumMS = EPSILON; |
| 878 | |
| 879 | /* Use the L1 norm to model the entropy of the L/R signal vs the M/S signal */ |
| 880 | for (i=0;i<13;i++) |
| 881 | { |
| 882 | int j; |
| 883 | for (j=m->eBands[i]<<LM;j<m->eBands[i+1]<<LM;j++) |
| 884 | { |
| 885 | opus_val32 L, R, M, S; |
| 886 | /* We cast to 32-bit first because of the -32768 case */ |
| 887 | L = EXTEND32(X[j]); |
| 888 | R = EXTEND32(X[N0+j]); |
| 889 | M = ADD32(L, R); |
| 890 | S = SUB32(L, R); |
| 891 | sumLR = ADD32(sumLR, ADD32(ABS32(L), ABS32(R))); |
| 892 | sumMS = ADD32(sumMS, ADD32(ABS32(M), ABS32(S))); |
| 893 | } |
| 894 | } |
| 895 | sumMS = MULT16_32_Q15(QCONST16(0.707107f, 15), sumMS); |
| 896 | thetas = 13; |
| 897 | /* We don't need thetas for lower bands with LM<=1 */ |
| 898 | if (LM<=1) |
| 899 | thetas -= 8; |
| 900 | return MULT16_32_Q15((m->eBands[13]<<(LM+1))+thetas, sumMS) |
| 901 | > MULT16_32_Q15(m->eBands[13]<<(LM+1), sumLR); |
| 902 | } |
| 903 | |
Jean-Marc Valin | 05548fa | 2014-01-19 01:31:00 -0500 | [diff] [blame] | 904 | #define MSWAP(a,b) do {opus_val16 tmp = a;a=b;b=tmp;} while(0) |
| 905 | static opus_val16 median_of_5(const opus_val16 *x) |
| 906 | { |
| 907 | opus_val16 t0, t1, t2, t3, t4; |
| 908 | t2 = x[2]; |
| 909 | if (x[0] > x[1]) |
| 910 | { |
| 911 | t0 = x[1]; |
| 912 | t1 = x[0]; |
| 913 | } else { |
| 914 | t0 = x[0]; |
| 915 | t1 = x[1]; |
| 916 | } |
| 917 | if (x[3] > x[4]) |
| 918 | { |
| 919 | t3 = x[4]; |
| 920 | t4 = x[3]; |
| 921 | } else { |
| 922 | t3 = x[3]; |
| 923 | t4 = x[4]; |
| 924 | } |
| 925 | if (t0 > t3) |
| 926 | { |
| 927 | MSWAP(t0, t3); |
| 928 | MSWAP(t1, t4); |
| 929 | } |
| 930 | if (t2 > t1) |
| 931 | { |
| 932 | if (t1 < t3) |
| 933 | return MIN16(t2, t3); |
| 934 | else |
| 935 | return MIN16(t4, t1); |
| 936 | } else { |
| 937 | if (t2 < t3) |
| 938 | return MIN16(t1, t3); |
| 939 | else |
| 940 | return MIN16(t2, t4); |
| 941 | } |
| 942 | } |
| 943 | |
| 944 | static opus_val16 median_of_3(const opus_val16 *x) |
| 945 | { |
| 946 | opus_val16 t0, t1, t2; |
| 947 | if (x[0] > x[1]) |
| 948 | { |
| 949 | t0 = x[1]; |
| 950 | t1 = x[0]; |
| 951 | } else { |
| 952 | t0 = x[0]; |
| 953 | t1 = x[1]; |
| 954 | } |
| 955 | t2 = x[2]; |
| 956 | if (t1 < t2) |
| 957 | return t1; |
| 958 | else if (t0 < t2) |
| 959 | return t2; |
| 960 | else |
| 961 | return t0; |
| 962 | } |
| 963 | |
Jean-Marc Valin | d683c76 | 2012-12-21 16:17:38 -0500 | [diff] [blame] | 964 | static opus_val16 dynalloc_analysis(const opus_val16 *bandLogE, const opus_val16 *bandLogE2, |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 965 | int nbEBands, int start, int end, int C, int *offsets, int lsb_depth, const opus_int16 *logN, |
| 966 | int isTransient, int vbr, int constrained_vbr, const opus_int16 *eBands, int LM, |
Jean-Marc Valin | 0cc4d96 | 2017-06-01 03:14:13 -0400 | [diff] [blame] | 967 | int effectiveBytes, opus_int32 *tot_boost_, int lfe, opus_val16 *surround_dynalloc, AnalysisInfo *analysis) |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 968 | { |
| 969 | int i, c; |
| 970 | opus_int32 tot_boost=0; |
| 971 | opus_val16 maxDepth; |
| 972 | VARDECL(opus_val16, follower); |
| 973 | VARDECL(opus_val16, noise_floor); |
| 974 | SAVE_STACK; |
| 975 | ALLOC(follower, C*nbEBands, opus_val16); |
| 976 | ALLOC(noise_floor, C*nbEBands, opus_val16); |
Jean-Marc Valin | ff07200 | 2013-12-08 23:31:30 -0500 | [diff] [blame] | 977 | OPUS_CLEAR(offsets, nbEBands); |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 978 | /* Dynamic allocation code */ |
Jean-Marc Valin | 8259492 | 2013-07-25 13:52:42 -0400 | [diff] [blame] | 979 | maxDepth=-QCONST16(31.9f, DB_SHIFT); |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 980 | for (i=0;i<end;i++) |
| 981 | { |
| 982 | /* Noise floor must take into account eMeans, the depth, the width of the bands |
| 983 | and the preemphasis filter (approx. square of bark band ID) */ |
| 984 | noise_floor[i] = MULT16_16(QCONST16(0.0625f, DB_SHIFT),logN[i]) |
| 985 | +QCONST16(.5f,DB_SHIFT)+SHL16(9-lsb_depth,DB_SHIFT)-SHL16(eMeans[i],6) |
| 986 | +MULT16_16(QCONST16(.0062,DB_SHIFT),(i+5)*(i+5)); |
| 987 | } |
| 988 | c=0;do |
| 989 | { |
| 990 | for (i=0;i<end;i++) |
| 991 | maxDepth = MAX16(maxDepth, bandLogE[c*nbEBands+i]-noise_floor[i]); |
| 992 | } while (++c<C); |
| 993 | /* Make sure that dynamic allocation can't make us bust the budget */ |
Jean-Marc Valin | b08c4ca | 2013-04-26 16:32:10 -0400 | [diff] [blame] | 994 | if (effectiveBytes > 50 && LM>=1 && !lfe) |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 995 | { |
| 996 | int last=0; |
| 997 | c=0;do |
| 998 | { |
Jean-Marc Valin | 05548fa | 2014-01-19 01:31:00 -0500 | [diff] [blame] | 999 | opus_val16 offset; |
| 1000 | opus_val16 tmp; |
Jean-Marc Valin | 379af35 | 2014-01-19 01:42:04 -0500 | [diff] [blame] | 1001 | opus_val16 *f; |
| 1002 | f = &follower[c*nbEBands]; |
| 1003 | f[0] = bandLogE2[c*nbEBands]; |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 1004 | for (i=1;i<end;i++) |
| 1005 | { |
| 1006 | /* The last band to be at least 3 dB higher than the previous one |
| 1007 | is the last we'll consider. Otherwise, we run into problems on |
| 1008 | bandlimited signals. */ |
| 1009 | if (bandLogE2[c*nbEBands+i] > bandLogE2[c*nbEBands+i-1]+QCONST16(.5f,DB_SHIFT)) |
| 1010 | last=i; |
Jean-Marc Valin | 379af35 | 2014-01-19 01:42:04 -0500 | [diff] [blame] | 1011 | f[i] = MIN16(f[i-1]+QCONST16(1.5f,DB_SHIFT), bandLogE2[c*nbEBands+i]); |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 1012 | } |
| 1013 | for (i=last-1;i>=0;i--) |
Jean-Marc Valin | 379af35 | 2014-01-19 01:42:04 -0500 | [diff] [blame] | 1014 | f[i] = MIN16(f[i], MIN16(f[i+1]+QCONST16(2.f,DB_SHIFT), bandLogE2[c*nbEBands+i])); |
Jean-Marc Valin | 05548fa | 2014-01-19 01:31:00 -0500 | [diff] [blame] | 1015 | |
| 1016 | /* Combine with a median filter to avoid dynalloc triggering unnecessarily. |
| 1017 | The "offset" value controls how conservative we are -- a higher offset |
| 1018 | reduces the impact of the median filter and makes dynalloc use more bits. */ |
| 1019 | offset = QCONST16(1.f, DB_SHIFT); |
| 1020 | for (i=2;i<end-2;i++) |
Jean-Marc Valin | 379af35 | 2014-01-19 01:42:04 -0500 | [diff] [blame] | 1021 | f[i] = MAX16(f[i], median_of_5(&bandLogE2[c*nbEBands+i-2])-offset); |
Jean-Marc Valin | 05548fa | 2014-01-19 01:31:00 -0500 | [diff] [blame] | 1022 | tmp = median_of_3(&bandLogE2[c*nbEBands])-offset; |
Jean-Marc Valin | 379af35 | 2014-01-19 01:42:04 -0500 | [diff] [blame] | 1023 | f[0] = MAX16(f[0], tmp); |
| 1024 | f[1] = MAX16(f[1], tmp); |
Jean-Marc Valin | ce1173c | 2014-01-20 18:45:57 -0500 | [diff] [blame] | 1025 | tmp = median_of_3(&bandLogE2[c*nbEBands+end-3])-offset; |
| 1026 | f[end-2] = MAX16(f[end-2], tmp); |
| 1027 | f[end-1] = MAX16(f[end-1], tmp); |
Jean-Marc Valin | 05548fa | 2014-01-19 01:31:00 -0500 | [diff] [blame] | 1028 | |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 1029 | for (i=0;i<end;i++) |
Jean-Marc Valin | 379af35 | 2014-01-19 01:42:04 -0500 | [diff] [blame] | 1030 | f[i] = MAX16(f[i], noise_floor[i]); |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 1031 | } while (++c<C); |
| 1032 | if (C==2) |
| 1033 | { |
| 1034 | for (i=start;i<end;i++) |
| 1035 | { |
| 1036 | /* Consider 24 dB "cross-talk" */ |
| 1037 | follower[nbEBands+i] = MAX16(follower[nbEBands+i], follower[ i]-QCONST16(4.f,DB_SHIFT)); |
| 1038 | follower[ i] = MAX16(follower[ i], follower[nbEBands+i]-QCONST16(4.f,DB_SHIFT)); |
| 1039 | follower[i] = HALF16(MAX16(0, bandLogE[i]-follower[i]) + MAX16(0, bandLogE[nbEBands+i]-follower[nbEBands+i])); |
| 1040 | } |
| 1041 | } else { |
| 1042 | for (i=start;i<end;i++) |
| 1043 | { |
| 1044 | follower[i] = MAX16(0, bandLogE[i]-follower[i]); |
| 1045 | } |
| 1046 | } |
Jean-Marc Valin | 0f68696 | 2013-09-05 12:49:55 -0400 | [diff] [blame] | 1047 | for (i=start;i<end;i++) |
| 1048 | follower[i] = MAX16(follower[i], surround_dynalloc[i]); |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 1049 | /* For non-transient CBR/CVBR frames, halve the dynalloc contribution */ |
| 1050 | if ((!vbr || constrained_vbr)&&!isTransient) |
| 1051 | { |
| 1052 | for (i=start;i<end;i++) |
| 1053 | follower[i] = HALF16(follower[i]); |
| 1054 | } |
| 1055 | for (i=start;i<end;i++) |
| 1056 | { |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 1057 | if (i<8) |
| 1058 | follower[i] *= 2; |
| 1059 | if (i>=12) |
| 1060 | follower[i] = HALF16(follower[i]); |
Jean-Marc Valin | 0cc4d96 | 2017-06-01 03:14:13 -0400 | [diff] [blame] | 1061 | } |
| 1062 | #ifdef DISABLE_FLOAT_API |
| 1063 | (void)analysis; |
| 1064 | #else |
| 1065 | if (analysis->valid) |
| 1066 | { |
| 1067 | for (i=start;i<IMIN(LEAK_BANDS, end);i++) |
| 1068 | follower[i] = follower[i] + QCONST16(1.f/64.f, DB_SHIFT)*analysis->leak_boost[i]; |
| 1069 | } |
| 1070 | #endif |
| 1071 | for (i=start;i<end;i++) |
| 1072 | { |
| 1073 | int width; |
| 1074 | int boost; |
| 1075 | int boost_bits; |
| 1076 | |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 1077 | follower[i] = MIN16(follower[i], QCONST16(4, DB_SHIFT)); |
| 1078 | |
| 1079 | width = C*(eBands[i+1]-eBands[i])<<LM; |
| 1080 | if (width<6) |
| 1081 | { |
Jean-Marc Valin | d683c76 | 2012-12-21 16:17:38 -0500 | [diff] [blame] | 1082 | boost = (int)SHR32(EXTEND32(follower[i]),DB_SHIFT); |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 1083 | boost_bits = boost*width<<BITRES; |
| 1084 | } else if (width > 48) { |
Jean-Marc Valin | d683c76 | 2012-12-21 16:17:38 -0500 | [diff] [blame] | 1085 | boost = (int)SHR32(EXTEND32(follower[i])*8,DB_SHIFT); |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 1086 | boost_bits = (boost*width<<BITRES)/8; |
| 1087 | } else { |
Jean-Marc Valin | d683c76 | 2012-12-21 16:17:38 -0500 | [diff] [blame] | 1088 | boost = (int)SHR32(EXTEND32(follower[i])*width/6,DB_SHIFT); |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 1089 | boost_bits = boost*6<<BITRES; |
| 1090 | } |
Jean-Marc Valin | 4543308 | 2017-06-01 03:08:58 -0400 | [diff] [blame] | 1091 | /* For CBR and non-transient CVBR frames, limit dynalloc to 2/3 of the bits */ |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 1092 | if ((!vbr || (constrained_vbr&&!isTransient)) |
Jean-Marc Valin | 4543308 | 2017-06-01 03:08:58 -0400 | [diff] [blame] | 1093 | && (tot_boost+boost_bits)>>BITRES>>3 > 2*effectiveBytes/3) |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 1094 | { |
Jean-Marc Valin | 4543308 | 2017-06-01 03:08:58 -0400 | [diff] [blame] | 1095 | opus_int32 cap = ((2*effectiveBytes/3)<<BITRES<<3); |
Jean-Marc Valin | e455092 | 2013-07-30 05:12:46 -0400 | [diff] [blame] | 1096 | offsets[i] = cap-tot_boost; |
| 1097 | tot_boost = cap; |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 1098 | break; |
| 1099 | } else { |
| 1100 | offsets[i] = boost; |
| 1101 | tot_boost += boost_bits; |
| 1102 | } |
| 1103 | } |
| 1104 | } |
| 1105 | *tot_boost_ = tot_boost; |
| 1106 | RESTORE_STACK; |
| 1107 | return maxDepth; |
| 1108 | } |
| 1109 | |
| 1110 | |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1111 | static int run_prefilter(CELTEncoder *st, celt_sig *in, celt_sig *prefilter_mem, int CC, int N, |
| 1112 | int prefilter_tapset, int *pitch, opus_val16 *gain, int *qgain, int enabled, int nbAvailableBytes) |
| 1113 | { |
| 1114 | int c; |
| 1115 | VARDECL(celt_sig, _pre); |
| 1116 | celt_sig *pre[2]; |
| 1117 | const CELTMode *mode; |
| 1118 | int pitch_index; |
| 1119 | opus_val16 gain1; |
| 1120 | opus_val16 pf_threshold; |
| 1121 | int pf_on; |
| 1122 | int qg; |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1123 | int overlap; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1124 | SAVE_STACK; |
| 1125 | |
| 1126 | mode = st->mode; |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1127 | overlap = mode->overlap; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1128 | ALLOC(_pre, CC*(N+COMBFILTER_MAXPERIOD), celt_sig); |
| 1129 | |
| 1130 | pre[0] = _pre; |
| 1131 | pre[1] = _pre + (N+COMBFILTER_MAXPERIOD); |
| 1132 | |
| 1133 | |
| 1134 | c=0; do { |
| 1135 | OPUS_COPY(pre[c], prefilter_mem+c*COMBFILTER_MAXPERIOD, COMBFILTER_MAXPERIOD); |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1136 | OPUS_COPY(pre[c]+COMBFILTER_MAXPERIOD, in+c*(N+overlap)+overlap, N); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1137 | } while (++c<CC); |
| 1138 | |
| 1139 | if (enabled) |
| 1140 | { |
| 1141 | VARDECL(opus_val16, pitch_buf); |
| 1142 | ALLOC(pitch_buf, (COMBFILTER_MAXPERIOD+N)>>1, opus_val16); |
| 1143 | |
Timothy B. Terriberry | 39386e0 | 2013-11-18 13:30:13 -0500 | [diff] [blame] | 1144 | pitch_downsample(pre, pitch_buf, COMBFILTER_MAXPERIOD+N, CC, st->arch); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1145 | /* Don't search for the fir last 1.5 octave of the range because |
| 1146 | there's too many false-positives due to short-term correlation */ |
| 1147 | pitch_search(pitch_buf+(COMBFILTER_MAXPERIOD>>1), pitch_buf, N, |
Timothy B. Terriberry | 39386e0 | 2013-11-18 13:30:13 -0500 | [diff] [blame] | 1148 | COMBFILTER_MAXPERIOD-3*COMBFILTER_MINPERIOD, &pitch_index, |
| 1149 | st->arch); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1150 | pitch_index = COMBFILTER_MAXPERIOD-pitch_index; |
| 1151 | |
| 1152 | gain1 = remove_doubling(pitch_buf, COMBFILTER_MAXPERIOD, COMBFILTER_MINPERIOD, |
xiangmingzhu | c95c9a0 | 2014-04-30 15:48:07 +0800 | [diff] [blame] | 1153 | N, &pitch_index, st->prefilter_period, st->prefilter_gain, st->arch); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1154 | if (pitch_index > COMBFILTER_MAXPERIOD-2) |
| 1155 | pitch_index = COMBFILTER_MAXPERIOD-2; |
| 1156 | gain1 = MULT16_16_Q15(QCONST16(.7f,15),gain1); |
| 1157 | /*printf("%d %d %f %f\n", pitch_change, pitch_index, gain1, st->analysis.tonality);*/ |
| 1158 | if (st->loss_rate>2) |
| 1159 | gain1 = HALF32(gain1); |
| 1160 | if (st->loss_rate>4) |
| 1161 | gain1 = HALF32(gain1); |
| 1162 | if (st->loss_rate>8) |
| 1163 | gain1 = 0; |
| 1164 | } else { |
| 1165 | gain1 = 0; |
| 1166 | pitch_index = COMBFILTER_MINPERIOD; |
| 1167 | } |
| 1168 | |
| 1169 | /* Gain threshold for enabling the prefilter/postfilter */ |
| 1170 | pf_threshold = QCONST16(.2f,15); |
| 1171 | |
| 1172 | /* Adjusting the threshold based on rate and continuity */ |
| 1173 | if (abs(pitch_index-st->prefilter_period)*10>pitch_index) |
| 1174 | pf_threshold += QCONST16(.2f,15); |
| 1175 | if (nbAvailableBytes<25) |
| 1176 | pf_threshold += QCONST16(.1f,15); |
| 1177 | if (nbAvailableBytes<35) |
| 1178 | pf_threshold += QCONST16(.1f,15); |
| 1179 | if (st->prefilter_gain > QCONST16(.4f,15)) |
| 1180 | pf_threshold -= QCONST16(.1f,15); |
| 1181 | if (st->prefilter_gain > QCONST16(.55f,15)) |
| 1182 | pf_threshold -= QCONST16(.1f,15); |
| 1183 | |
| 1184 | /* Hard threshold at 0.2 */ |
| 1185 | pf_threshold = MAX16(pf_threshold, QCONST16(.2f,15)); |
| 1186 | if (gain1<pf_threshold) |
| 1187 | { |
| 1188 | gain1 = 0; |
| 1189 | pf_on = 0; |
| 1190 | qg = 0; |
| 1191 | } else { |
| 1192 | /*This block is not gated by a total bits check only because |
| 1193 | of the nbAvailableBytes check above.*/ |
| 1194 | if (ABS16(gain1-st->prefilter_gain)<QCONST16(.1f,15)) |
| 1195 | gain1=st->prefilter_gain; |
| 1196 | |
| 1197 | #ifdef FIXED_POINT |
| 1198 | qg = ((gain1+1536)>>10)/3-1; |
| 1199 | #else |
| 1200 | qg = (int)floor(.5f+gain1*32/3)-1; |
| 1201 | #endif |
| 1202 | qg = IMAX(0, IMIN(7, qg)); |
| 1203 | gain1 = QCONST16(0.09375f,15)*(qg+1); |
| 1204 | pf_on = 1; |
| 1205 | } |
| 1206 | /*printf("%d %f\n", pitch_index, gain1);*/ |
| 1207 | |
| 1208 | c=0; do { |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1209 | int offset = mode->shortMdctSize-overlap; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1210 | st->prefilter_period=IMAX(st->prefilter_period, COMBFILTER_MINPERIOD); |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1211 | OPUS_COPY(in+c*(N+overlap), st->in_mem+c*(overlap), overlap); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1212 | if (offset) |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1213 | comb_filter(in+c*(N+overlap)+overlap, pre[c]+COMBFILTER_MAXPERIOD, |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1214 | st->prefilter_period, st->prefilter_period, offset, -st->prefilter_gain, -st->prefilter_gain, |
Jonathan Lennox | 43120f0 | 2015-08-03 17:04:27 -0400 | [diff] [blame] | 1215 | st->prefilter_tapset, st->prefilter_tapset, NULL, 0, st->arch); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1216 | |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1217 | comb_filter(in+c*(N+overlap)+overlap+offset, pre[c]+COMBFILTER_MAXPERIOD+offset, |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1218 | st->prefilter_period, pitch_index, N-offset, -st->prefilter_gain, -gain1, |
Jonathan Lennox | 43120f0 | 2015-08-03 17:04:27 -0400 | [diff] [blame] | 1219 | st->prefilter_tapset, prefilter_tapset, mode->window, overlap, st->arch); |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1220 | OPUS_COPY(st->in_mem+c*(overlap), in+c*(N+overlap)+N, overlap); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1221 | |
| 1222 | if (N>COMBFILTER_MAXPERIOD) |
| 1223 | { |
Jean-Marc Valin | b66080a | 2016-06-20 12:11:05 -0400 | [diff] [blame] | 1224 | OPUS_COPY(prefilter_mem+c*COMBFILTER_MAXPERIOD, pre[c]+N, COMBFILTER_MAXPERIOD); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1225 | } else { |
| 1226 | OPUS_MOVE(prefilter_mem+c*COMBFILTER_MAXPERIOD, prefilter_mem+c*COMBFILTER_MAXPERIOD+N, COMBFILTER_MAXPERIOD-N); |
Jean-Marc Valin | b66080a | 2016-06-20 12:11:05 -0400 | [diff] [blame] | 1227 | OPUS_COPY(prefilter_mem+c*COMBFILTER_MAXPERIOD+COMBFILTER_MAXPERIOD-N, pre[c]+COMBFILTER_MAXPERIOD, N); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1228 | } |
| 1229 | } while (++c<CC); |
| 1230 | |
| 1231 | RESTORE_STACK; |
| 1232 | *gain = gain1; |
| 1233 | *pitch = pitch_index; |
| 1234 | *qgain = qg; |
| 1235 | return pf_on; |
| 1236 | } |
| 1237 | |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 1238 | static int compute_vbr(const CELTMode *mode, AnalysisInfo *analysis, opus_int32 base_target, |
| 1239 | int LM, opus_int32 bitrate, int lastCodedBands, int C, int intensity, |
| 1240 | int constrained_vbr, opus_val16 stereo_saving, int tot_boost, |
| 1241 | opus_val16 tf_estimate, int pitch_change, opus_val16 maxDepth, |
Jean-Marc Valin | 132ed59 | 2016-11-04 11:41:13 -0400 | [diff] [blame] | 1242 | int lfe, int has_surround_mask, opus_val16 surround_masking, |
Jean-Marc Valin | 3c0aa8f | 2013-06-25 14:10:27 -0400 | [diff] [blame] | 1243 | opus_val16 temporal_vbr) |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 1244 | { |
| 1245 | /* The target rate in 8th bits per frame */ |
| 1246 | opus_int32 target; |
| 1247 | int coded_bins; |
| 1248 | int coded_bands; |
Jean-Marc Valin | 39cbc45 | 2013-06-13 15:28:53 -0400 | [diff] [blame] | 1249 | opus_val16 tf_calibration; |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 1250 | int nbEBands; |
| 1251 | const opus_int16 *eBands; |
| 1252 | |
| 1253 | nbEBands = mode->nbEBands; |
| 1254 | eBands = mode->eBands; |
| 1255 | |
| 1256 | coded_bands = lastCodedBands ? lastCodedBands : nbEBands; |
| 1257 | coded_bins = eBands[coded_bands]<<LM; |
| 1258 | if (C==2) |
| 1259 | coded_bins += eBands[IMIN(intensity, coded_bands)]<<LM; |
| 1260 | |
| 1261 | target = base_target; |
| 1262 | |
| 1263 | /*printf("%f %f %f %f %d %d ", st->analysis.activity, st->analysis.tonality, tf_estimate, st->stereo_saving, tot_boost, coded_bands);*/ |
Jean-Marc Valin | 3ab03e0 | 2013-09-06 16:00:39 -0400 | [diff] [blame] | 1264 | #ifndef DISABLE_FLOAT_API |
Gregory Maxwell | 5280c71 | 2013-07-15 15:51:24 -0700 | [diff] [blame] | 1265 | if (analysis->valid && analysis->activity<.4) |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 1266 | target -= (opus_int32)((coded_bins<<BITRES)*(.4f-analysis->activity)); |
| 1267 | #endif |
| 1268 | /* Stereo savings */ |
| 1269 | if (C==2) |
| 1270 | { |
| 1271 | int coded_stereo_bands; |
| 1272 | int coded_stereo_dof; |
| 1273 | opus_val16 max_frac; |
| 1274 | coded_stereo_bands = IMIN(intensity, coded_bands); |
| 1275 | coded_stereo_dof = (eBands[coded_stereo_bands]<<LM)-coded_stereo_bands; |
| 1276 | /* Maximum fraction of the bits we can save if the signal is mono. */ |
| 1277 | max_frac = DIV32_16(MULT16_16(QCONST16(0.8f, 15), coded_stereo_dof), coded_bins); |
Jean-Marc Valin | 9c23f5c | 2013-10-28 14:15:18 -0400 | [diff] [blame] | 1278 | stereo_saving = MIN16(stereo_saving, QCONST16(1.f, 8)); |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 1279 | /*printf("%d %d %d ", coded_stereo_dof, coded_bins, tot_boost);*/ |
| 1280 | target -= (opus_int32)MIN32(MULT16_32_Q15(max_frac,target), |
| 1281 | SHR32(MULT16_16(stereo_saving-QCONST16(0.1f,8),(coded_stereo_dof<<BITRES)),8)); |
| 1282 | } |
| 1283 | /* Boost the rate according to dynalloc (minus the dynalloc average for calibration). */ |
Jean-Marc Valin | c2d3233 | 2017-06-02 14:01:36 -0400 | [diff] [blame] | 1284 | target += tot_boost-(19<<LM); |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 1285 | /* Apply transient boost, compensating for average boost. */ |
Jean-Marc Valin | f26afaa | 2017-06-02 15:16:24 -0400 | [diff] [blame] | 1286 | tf_calibration = QCONST16(0.044f,14); |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 1287 | target += (opus_int32)SHL32(MULT16_32_Q15(tf_estimate-tf_calibration, target),1); |
| 1288 | |
Jean-Marc Valin | 3ab03e0 | 2013-09-06 16:00:39 -0400 | [diff] [blame] | 1289 | #ifndef DISABLE_FLOAT_API |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 1290 | /* Apply tonality boost */ |
Jean-Marc Valin | cd373b5 | 2013-07-07 02:51:07 -0400 | [diff] [blame] | 1291 | if (analysis->valid && !lfe) |
| 1292 | { |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 1293 | opus_int32 tonal_target; |
| 1294 | float tonal; |
| 1295 | |
| 1296 | /* Tonality boost (compensating for the average). */ |
Jean-Marc Valin | f26afaa | 2017-06-02 15:16:24 -0400 | [diff] [blame] | 1297 | tonal = MAX16(0.f,analysis->tonality-.15f)-0.12f; |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 1298 | tonal_target = target + (opus_int32)((coded_bins<<BITRES)*1.2f*tonal); |
| 1299 | if (pitch_change) |
| 1300 | tonal_target += (opus_int32)((coded_bins<<BITRES)*.8f); |
Jean-Marc Valin | 942fc81 | 2013-10-01 19:27:30 -0400 | [diff] [blame] | 1301 | /*printf("%f %f ", analysis->tonality, tonal);*/ |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 1302 | target = tonal_target; |
| 1303 | } |
Timothy B. Terriberry | 23f503a | 2014-12-26 08:31:39 -0800 | [diff] [blame] | 1304 | #else |
| 1305 | (void)analysis; |
| 1306 | (void)pitch_change; |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 1307 | #endif |
| 1308 | |
| 1309 | if (has_surround_mask&&!lfe) |
| 1310 | { |
Jean-Marc Valin | 16ba19a | 2013-06-27 03:40:44 -0400 | [diff] [blame] | 1311 | opus_int32 surround_target = target + (opus_int32)SHR32(MULT16_16(surround_masking,coded_bins<<BITRES), DB_SHIFT); |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 1312 | /*printf("%f %d %d %d %d %d %d ", surround_masking, coded_bins, st->end, st->intensity, surround_target, target, st->bitrate);*/ |
| 1313 | target = IMAX(target/4, surround_target); |
| 1314 | } |
| 1315 | |
| 1316 | { |
| 1317 | opus_int32 floor_depth; |
| 1318 | int bins; |
| 1319 | bins = eBands[nbEBands-2]<<LM; |
| 1320 | /*floor_depth = SHR32(MULT16_16((C*bins<<BITRES),celt_log2(SHL32(MAX16(1,sample_max),13))), DB_SHIFT);*/ |
| 1321 | floor_depth = (opus_int32)SHR32(MULT16_16((C*bins<<BITRES),maxDepth), DB_SHIFT); |
| 1322 | floor_depth = IMAX(floor_depth, target>>2); |
| 1323 | target = IMIN(target, floor_depth); |
| 1324 | /*printf("%f %d\n", maxDepth, floor_depth);*/ |
| 1325 | } |
| 1326 | |
Jean-Marc Valin | 59618a5 | 2015-11-16 23:03:17 -0500 | [diff] [blame] | 1327 | /* Make VBR less aggressive for constrained VBR because we can't keep a higher bitrate |
| 1328 | for long. Needs tuning. */ |
| 1329 | if ((!has_surround_mask||lfe) && constrained_vbr) |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 1330 | { |
Jean-Marc Valin | 59618a5 | 2015-11-16 23:03:17 -0500 | [diff] [blame] | 1331 | target = base_target + (opus_int32)MULT16_32_Q15(QCONST16(0.67f, 15), target-base_target); |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 1332 | } |
Jean-Marc Valin | 3c0aa8f | 2013-06-25 14:10:27 -0400 | [diff] [blame] | 1333 | |
Jean-Marc Valin | cd373b5 | 2013-07-07 02:51:07 -0400 | [diff] [blame] | 1334 | if (!has_surround_mask && tf_estimate < QCONST16(.2f, 14)) |
Jean-Marc Valin | 3c0aa8f | 2013-06-25 14:10:27 -0400 | [diff] [blame] | 1335 | { |
| 1336 | opus_val16 amount; |
| 1337 | opus_val16 tvbr_factor; |
Jean-Marc Valin | 8e3a1cb | 2013-07-01 16:12:27 -0400 | [diff] [blame] | 1338 | amount = MULT16_16_Q15(QCONST16(.0000031f, 30), IMAX(0, IMIN(32000, 96000-bitrate))); |
Jean-Marc Valin | 3c0aa8f | 2013-06-25 14:10:27 -0400 | [diff] [blame] | 1339 | tvbr_factor = SHR32(MULT16_16(temporal_vbr, amount), DB_SHIFT); |
| 1340 | target += (opus_int32)MULT16_32_Q15(tvbr_factor, target); |
| 1341 | } |
| 1342 | |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 1343 | /* Don't allow more than doubling the rate */ |
| 1344 | target = IMIN(2*base_target, target); |
| 1345 | |
| 1346 | return target; |
| 1347 | } |
| 1348 | |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1349 | int celt_encode_with_ec(CELTEncoder * OPUS_RESTRICT st, const opus_val16 * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes, ec_enc *enc) |
| 1350 | { |
| 1351 | int i, c, N; |
| 1352 | opus_int32 bits; |
| 1353 | ec_enc _enc; |
| 1354 | VARDECL(celt_sig, in); |
| 1355 | VARDECL(celt_sig, freq); |
| 1356 | VARDECL(celt_norm, X); |
| 1357 | VARDECL(celt_ener, bandE); |
| 1358 | VARDECL(opus_val16, bandLogE); |
| 1359 | VARDECL(opus_val16, bandLogE2); |
| 1360 | VARDECL(int, fine_quant); |
| 1361 | VARDECL(opus_val16, error); |
| 1362 | VARDECL(int, pulses); |
| 1363 | VARDECL(int, cap); |
| 1364 | VARDECL(int, offsets); |
| 1365 | VARDECL(int, fine_priority); |
| 1366 | VARDECL(int, tf_res); |
| 1367 | VARDECL(unsigned char, collapse_masks); |
| 1368 | celt_sig *prefilter_mem; |
Jean-Marc Valin | 6fccb4b | 2016-07-04 01:06:11 -0400 | [diff] [blame] | 1369 | opus_val16 *oldBandE, *oldLogE, *oldLogE2, *energyError; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1370 | int shortBlocks=0; |
| 1371 | int isTransient=0; |
| 1372 | const int CC = st->channels; |
| 1373 | const int C = st->stream_channels; |
| 1374 | int LM, M; |
| 1375 | int tf_select; |
| 1376 | int nbFilledBytes, nbAvailableBytes; |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1377 | int start; |
| 1378 | int end; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1379 | int effEnd; |
| 1380 | int codedBands; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1381 | int alloc_trim; |
| 1382 | int pitch_index=COMBFILTER_MINPERIOD; |
| 1383 | opus_val16 gain1 = 0; |
| 1384 | int dual_stereo=0; |
| 1385 | int effectiveBytes; |
| 1386 | int dynalloc_logp; |
| 1387 | opus_int32 vbr_rate; |
| 1388 | opus_int32 total_bits; |
| 1389 | opus_int32 total_boost; |
| 1390 | opus_int32 balance; |
| 1391 | opus_int32 tell; |
Jean-Marc Valin | bcd6aba | 2015-12-06 10:50:15 -0500 | [diff] [blame] | 1392 | opus_int32 tell0_frac; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1393 | int prefilter_tapset=0; |
| 1394 | int pf_on; |
| 1395 | int anti_collapse_rsv; |
| 1396 | int anti_collapse_on=0; |
| 1397 | int silence=0; |
| 1398 | int tf_chan = 0; |
| 1399 | opus_val16 tf_estimate; |
| 1400 | int pitch_change=0; |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 1401 | opus_int32 tot_boost; |
Jean-Marc Valin | b7bd4c2 | 2013-05-18 23:33:48 -0400 | [diff] [blame] | 1402 | opus_val32 sample_max; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1403 | opus_val16 maxDepth; |
| 1404 | const OpusCustomMode *mode; |
| 1405 | int nbEBands; |
| 1406 | int overlap; |
| 1407 | const opus_int16 *eBands; |
| 1408 | int secondMdct; |
Jean-Marc Valin | 5fb50ad | 2012-12-21 01:23:26 -0500 | [diff] [blame] | 1409 | int signalBandwidth; |
Jean-Marc Valin | f77410d | 2013-04-19 22:44:03 -0400 | [diff] [blame] | 1410 | int transient_got_disabled=0; |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 1411 | opus_val16 surround_masking=0; |
Jean-Marc Valin | 3c0aa8f | 2013-06-25 14:10:27 -0400 | [diff] [blame] | 1412 | opus_val16 temporal_vbr=0; |
Jean-Marc Valin | 0f68696 | 2013-09-05 12:49:55 -0400 | [diff] [blame] | 1413 | opus_val16 surround_trim = 0; |
Jean-Marc Valin | 1484591 | 2016-06-08 02:33:56 -0400 | [diff] [blame] | 1414 | opus_int32 equiv_rate; |
Jean-Marc Valin | bcd6aba | 2015-12-06 10:50:15 -0500 | [diff] [blame] | 1415 | int hybrid; |
Jean-Marc Valin | 90f20c6 | 2016-10-28 16:44:38 -0400 | [diff] [blame] | 1416 | int weak_transient = 0; |
Jean-Marc Valin | 0f68696 | 2013-09-05 12:49:55 -0400 | [diff] [blame] | 1417 | VARDECL(opus_val16, surround_dynalloc); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1418 | ALLOC_STACK; |
| 1419 | |
| 1420 | mode = st->mode; |
| 1421 | nbEBands = mode->nbEBands; |
| 1422 | overlap = mode->overlap; |
| 1423 | eBands = mode->eBands; |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1424 | start = st->start; |
| 1425 | end = st->end; |
Jean-Marc Valin | bcd6aba | 2015-12-06 10:50:15 -0500 | [diff] [blame] | 1426 | hybrid = start != 0; |
Jean-Marc Valin | dae16fb | 2012-12-13 21:40:58 -0500 | [diff] [blame] | 1427 | tf_estimate = 0; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1428 | if (nbCompressedBytes<2 || pcm==NULL) |
Jean-Marc Valin | e83d2aa | 2013-11-15 01:52:28 -0500 | [diff] [blame] | 1429 | { |
Jean-Marc Valin | 1b28e0c | 2013-11-15 01:57:25 -0500 | [diff] [blame] | 1430 | RESTORE_STACK; |
Jean-Marc Valin | e83d2aa | 2013-11-15 01:52:28 -0500 | [diff] [blame] | 1431 | return OPUS_BAD_ARG; |
| 1432 | } |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1433 | |
| 1434 | frame_size *= st->upsample; |
| 1435 | for (LM=0;LM<=mode->maxLM;LM++) |
| 1436 | if (mode->shortMdctSize<<LM==frame_size) |
| 1437 | break; |
| 1438 | if (LM>mode->maxLM) |
Jean-Marc Valin | e83d2aa | 2013-11-15 01:52:28 -0500 | [diff] [blame] | 1439 | { |
Jean-Marc Valin | 1b28e0c | 2013-11-15 01:57:25 -0500 | [diff] [blame] | 1440 | RESTORE_STACK; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1441 | return OPUS_BAD_ARG; |
Jean-Marc Valin | e83d2aa | 2013-11-15 01:52:28 -0500 | [diff] [blame] | 1442 | } |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1443 | M=1<<LM; |
| 1444 | N = M*mode->shortMdctSize; |
| 1445 | |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1446 | prefilter_mem = st->in_mem+CC*(overlap); |
| 1447 | oldBandE = (opus_val16*)(st->in_mem+CC*(overlap+COMBFILTER_MAXPERIOD)); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1448 | oldLogE = oldBandE + CC*nbEBands; |
| 1449 | oldLogE2 = oldLogE + CC*nbEBands; |
Jean-Marc Valin | 6fccb4b | 2016-07-04 01:06:11 -0400 | [diff] [blame] | 1450 | energyError = oldLogE2 + CC*nbEBands; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1451 | |
| 1452 | if (enc==NULL) |
| 1453 | { |
Jean-Marc Valin | bcd6aba | 2015-12-06 10:50:15 -0500 | [diff] [blame] | 1454 | tell0_frac=tell=1; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1455 | nbFilledBytes=0; |
| 1456 | } else { |
Jean-Marc Valin | bcd6aba | 2015-12-06 10:50:15 -0500 | [diff] [blame] | 1457 | tell0_frac=tell=ec_tell_frac(enc); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1458 | tell=ec_tell(enc); |
| 1459 | nbFilledBytes=(tell+4)>>3; |
| 1460 | } |
| 1461 | |
| 1462 | #ifdef CUSTOM_MODES |
| 1463 | if (st->signalling && enc==NULL) |
| 1464 | { |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1465 | int tmp = (mode->effEBands-end)>>1; |
| 1466 | end = st->end = IMAX(1, mode->effEBands-tmp); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1467 | compressed[0] = tmp<<5; |
| 1468 | compressed[0] |= LM<<3; |
| 1469 | compressed[0] |= (C==2)<<2; |
| 1470 | /* Convert "standard mode" to Opus header */ |
| 1471 | if (mode->Fs==48000 && mode->shortMdctSize==120) |
| 1472 | { |
| 1473 | int c0 = toOpus(compressed[0]); |
| 1474 | if (c0<0) |
Jean-Marc Valin | e83d2aa | 2013-11-15 01:52:28 -0500 | [diff] [blame] | 1475 | { |
Jean-Marc Valin | 1b28e0c | 2013-11-15 01:57:25 -0500 | [diff] [blame] | 1476 | RESTORE_STACK; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1477 | return OPUS_BAD_ARG; |
Jean-Marc Valin | e83d2aa | 2013-11-15 01:52:28 -0500 | [diff] [blame] | 1478 | } |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1479 | compressed[0] = c0; |
| 1480 | } |
| 1481 | compressed++; |
| 1482 | nbCompressedBytes--; |
| 1483 | } |
| 1484 | #else |
| 1485 | celt_assert(st->signalling==0); |
| 1486 | #endif |
| 1487 | |
| 1488 | /* Can't produce more than 1275 output bytes */ |
| 1489 | nbCompressedBytes = IMIN(nbCompressedBytes,1275); |
| 1490 | nbAvailableBytes = nbCompressedBytes - nbFilledBytes; |
| 1491 | |
| 1492 | if (st->vbr && st->bitrate!=OPUS_BITRATE_MAX) |
| 1493 | { |
| 1494 | opus_int32 den=mode->Fs>>BITRES; |
| 1495 | vbr_rate=(st->bitrate*frame_size+(den>>1))/den; |
| 1496 | #ifdef CUSTOM_MODES |
| 1497 | if (st->signalling) |
| 1498 | vbr_rate -= 8<<BITRES; |
| 1499 | #endif |
| 1500 | effectiveBytes = vbr_rate>>(3+BITRES); |
| 1501 | } else { |
| 1502 | opus_int32 tmp; |
| 1503 | vbr_rate = 0; |
| 1504 | tmp = st->bitrate*frame_size; |
| 1505 | if (tell>1) |
| 1506 | tmp += tell; |
| 1507 | if (st->bitrate!=OPUS_BITRATE_MAX) |
| 1508 | nbCompressedBytes = IMAX(2, IMIN(nbCompressedBytes, |
| 1509 | (tmp+4*mode->Fs)/(8*mode->Fs)-!!st->signalling)); |
Jean-Marc Valin | bcd6aba | 2015-12-06 10:50:15 -0500 | [diff] [blame] | 1510 | effectiveBytes = nbCompressedBytes - nbFilledBytes; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1511 | } |
Jean-Marc Valin | 1484591 | 2016-06-08 02:33:56 -0400 | [diff] [blame] | 1512 | equiv_rate = ((opus_int32)nbCompressedBytes*8*50 >> (3-LM)) - (40*C+20)*((400>>LM) - 50); |
Jean-Marc Valin | c1959e7 | 2013-11-08 19:24:10 -0500 | [diff] [blame] | 1513 | if (st->bitrate != OPUS_BITRATE_MAX) |
Jean-Marc Valin | 1484591 | 2016-06-08 02:33:56 -0400 | [diff] [blame] | 1514 | equiv_rate = IMIN(equiv_rate, st->bitrate - (40*C+20)*((400>>LM) - 50)); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1515 | |
| 1516 | if (enc==NULL) |
| 1517 | { |
| 1518 | ec_enc_init(&_enc, compressed, nbCompressedBytes); |
| 1519 | enc = &_enc; |
| 1520 | } |
| 1521 | |
| 1522 | if (vbr_rate>0) |
| 1523 | { |
| 1524 | /* Computes the max bit-rate allowed in VBR mode to avoid violating the |
| 1525 | target rate and buffering. |
| 1526 | We must do this up front so that bust-prevention logic triggers |
| 1527 | correctly if we don't have enough bits. */ |
| 1528 | if (st->constrained_vbr) |
| 1529 | { |
| 1530 | opus_int32 vbr_bound; |
| 1531 | opus_int32 max_allowed; |
| 1532 | /* We could use any multiple of vbr_rate as bound (depending on the |
| 1533 | delay). |
| 1534 | This is clamped to ensure we use at least two bytes if the encoder |
| 1535 | was entirely empty, but to allow 0 in hybrid mode. */ |
| 1536 | vbr_bound = vbr_rate; |
| 1537 | max_allowed = IMIN(IMAX(tell==1?2:0, |
| 1538 | (vbr_rate+vbr_bound-st->vbr_reservoir)>>(BITRES+3)), |
| 1539 | nbAvailableBytes); |
| 1540 | if(max_allowed < nbAvailableBytes) |
| 1541 | { |
| 1542 | nbCompressedBytes = nbFilledBytes+max_allowed; |
| 1543 | nbAvailableBytes = max_allowed; |
| 1544 | ec_enc_shrink(enc, nbCompressedBytes); |
| 1545 | } |
| 1546 | } |
| 1547 | } |
| 1548 | total_bits = nbCompressedBytes*8; |
| 1549 | |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1550 | effEnd = end; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1551 | if (effEnd > mode->effEBands) |
| 1552 | effEnd = mode->effEBands; |
| 1553 | |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1554 | ALLOC(in, CC*(N+overlap), celt_sig); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1555 | |
Jean-Marc Valin | b7bd4c2 | 2013-05-18 23:33:48 -0400 | [diff] [blame] | 1556 | sample_max=MAX32(st->overlap_max, celt_maxabs16(pcm, C*(N-overlap)/st->upsample)); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1557 | st->overlap_max=celt_maxabs16(pcm+C*(N-overlap)/st->upsample, C*overlap/st->upsample); |
Jean-Marc Valin | b7bd4c2 | 2013-05-18 23:33:48 -0400 | [diff] [blame] | 1558 | sample_max=MAX32(sample_max, st->overlap_max); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1559 | #ifdef FIXED_POINT |
| 1560 | silence = (sample_max==0); |
| 1561 | #else |
| 1562 | silence = (sample_max <= (opus_val16)1/(1<<st->lsb_depth)); |
| 1563 | #endif |
| 1564 | #ifdef FUZZING |
| 1565 | if ((rand()&0x3F)==0) |
| 1566 | silence = 1; |
| 1567 | #endif |
| 1568 | if (tell==1) |
| 1569 | ec_enc_bit_logp(enc, silence, 15); |
| 1570 | else |
| 1571 | silence=0; |
| 1572 | if (silence) |
| 1573 | { |
| 1574 | /*In VBR mode there is no need to send more than the minimum. */ |
| 1575 | if (vbr_rate>0) |
| 1576 | { |
| 1577 | effectiveBytes=nbCompressedBytes=IMIN(nbCompressedBytes, nbFilledBytes+2); |
| 1578 | total_bits=nbCompressedBytes*8; |
| 1579 | nbAvailableBytes=2; |
| 1580 | ec_enc_shrink(enc, nbCompressedBytes); |
| 1581 | } |
| 1582 | /* Pretend we've filled all the remaining bits with zeros |
| 1583 | (that's what the initialiser did anyway) */ |
| 1584 | tell = nbCompressedBytes*8; |
| 1585 | enc->nbits_total+=tell-ec_tell(enc); |
| 1586 | } |
| 1587 | c=0; do { |
Jean-Marc Valin | c94e4bb | 2013-12-08 03:31:50 -0500 | [diff] [blame] | 1588 | int need_clip=0; |
| 1589 | #ifndef FIXED_POINT |
| 1590 | need_clip = st->clip && sample_max>65536.f; |
| 1591 | #endif |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1592 | celt_preemphasis(pcm+c, in+c*(N+overlap)+overlap, N, CC, st->upsample, |
Jean-Marc Valin | c94e4bb | 2013-12-08 03:31:50 -0500 | [diff] [blame] | 1593 | mode->preemph, st->preemph_memE+c, need_clip); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1594 | } while (++c<CC); |
| 1595 | |
| 1596 | |
| 1597 | |
| 1598 | /* Find pitch period and gain */ |
| 1599 | { |
| 1600 | int enabled; |
| 1601 | int qg; |
Jean-Marc Valin | 7e0ca43 | 2015-12-25 13:12:58 -0500 | [diff] [blame] | 1602 | enabled = ((st->lfe&&nbAvailableBytes>3) || nbAvailableBytes>12*C) && !hybrid && !silence && !st->disable_pf |
Jean-Marc Valin | 132ed59 | 2016-11-04 11:41:13 -0400 | [diff] [blame] | 1603 | && st->complexity >= 5; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1604 | |
| 1605 | prefilter_tapset = st->tapset_decision; |
| 1606 | pf_on = run_prefilter(st, in, prefilter_mem, CC, N, prefilter_tapset, &pitch_index, &gain1, &qg, enabled, nbAvailableBytes); |
Gregory Maxwell | 5280c71 | 2013-07-15 15:51:24 -0700 | [diff] [blame] | 1607 | if ((gain1 > QCONST16(.4f,15) || st->prefilter_gain > QCONST16(.4f,15)) && (!st->analysis.valid || st->analysis.tonality > .3) |
| 1608 | && (pitch_index > 1.26*st->prefilter_period || pitch_index < .79*st->prefilter_period)) |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1609 | pitch_change = 1; |
| 1610 | if (pf_on==0) |
| 1611 | { |
Jean-Marc Valin | 7e0ca43 | 2015-12-25 13:12:58 -0500 | [diff] [blame] | 1612 | if(!hybrid && tell+16<=total_bits) |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1613 | ec_enc_bit_logp(enc, 0, 1); |
| 1614 | } else { |
| 1615 | /*This block is not gated by a total bits check only because |
| 1616 | of the nbAvailableBytes check above.*/ |
| 1617 | int octave; |
| 1618 | ec_enc_bit_logp(enc, 1, 1); |
| 1619 | pitch_index += 1; |
| 1620 | octave = EC_ILOG(pitch_index)-5; |
| 1621 | ec_enc_uint(enc, octave, 6); |
| 1622 | ec_enc_bits(enc, pitch_index-(16<<octave), 4+octave); |
| 1623 | pitch_index -= 1; |
| 1624 | ec_enc_bits(enc, qg, 3); |
| 1625 | ec_enc_icdf(enc, prefilter_tapset, tapset_icdf, 2); |
| 1626 | } |
| 1627 | } |
| 1628 | |
| 1629 | isTransient = 0; |
| 1630 | shortBlocks = 0; |
Jean-Marc Valin | b08c4ca | 2013-04-26 16:32:10 -0400 | [diff] [blame] | 1631 | if (st->complexity >= 1 && !st->lfe) |
Jean-Marc Valin | 2a5f056 | 2012-11-19 23:17:06 -0500 | [diff] [blame] | 1632 | { |
Jean-Marc Valin | 7e12239 | 2016-10-29 17:02:36 -0400 | [diff] [blame] | 1633 | /* Reduces the likelihood of energy instability on fricatives at low bitrate |
| 1634 | in hybrid mode. It seems like we still want to have real transients on vowels |
| 1635 | though (small SILK quantization offset value). */ |
| 1636 | int allow_weak_transients = hybrid && effectiveBytes<15 && st->silk_info.offset >= 100; |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1637 | isTransient = transient_analysis(in, N+overlap, CC, |
Jean-Marc Valin | 7e12239 | 2016-10-29 17:02:36 -0400 | [diff] [blame] | 1638 | &tf_estimate, &tf_chan, allow_weak_transients, &weak_transient); |
Jean-Marc Valin | 2a5f056 | 2012-11-19 23:17:06 -0500 | [diff] [blame] | 1639 | } |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1640 | if (LM>0 && ec_tell(enc)+3<=total_bits) |
| 1641 | { |
Jean-Marc Valin | 2a5f056 | 2012-11-19 23:17:06 -0500 | [diff] [blame] | 1642 | if (isTransient) |
| 1643 | shortBlocks = M; |
Jean-Marc Valin | 2a5f056 | 2012-11-19 23:17:06 -0500 | [diff] [blame] | 1644 | } else { |
| 1645 | isTransient = 0; |
Jean-Marc Valin | 3252bf2 | 2013-04-19 03:14:28 -0400 | [diff] [blame] | 1646 | transient_got_disabled=1; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1647 | } |
| 1648 | |
| 1649 | ALLOC(freq, CC*N, celt_sig); /**< Interleaved signal MDCTs */ |
| 1650 | ALLOC(bandE,nbEBands*CC, celt_ener); |
| 1651 | ALLOC(bandLogE,nbEBands*CC, opus_val16); |
| 1652 | |
| 1653 | secondMdct = shortBlocks && st->complexity>=8; |
| 1654 | ALLOC(bandLogE2, C*nbEBands, opus_val16); |
| 1655 | if (secondMdct) |
| 1656 | { |
Viswanath Puttagunta | f48abe8 | 2015-05-15 12:42:19 -0500 | [diff] [blame] | 1657 | compute_mdcts(mode, 0, in, freq, C, CC, LM, st->upsample, st->arch); |
Linfeng Zhang | a1ae821 | 2016-09-07 15:29:03 -0700 | [diff] [blame] | 1658 | compute_band_energies(mode, freq, bandE, effEnd, C, LM, st->arch); |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1659 | amp2Log2(mode, effEnd, end, bandE, bandLogE2, C); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1660 | for (i=0;i<C*nbEBands;i++) |
| 1661 | bandLogE2[i] += HALF16(SHL16(LM, DB_SHIFT)); |
| 1662 | } |
| 1663 | |
Viswanath Puttagunta | f48abe8 | 2015-05-15 12:42:19 -0500 | [diff] [blame] | 1664 | compute_mdcts(mode, shortBlocks, in, freq, C, CC, LM, st->upsample, st->arch); |
Jean-Marc Valin | 69c3dcd | 2013-02-19 03:42:18 -0500 | [diff] [blame] | 1665 | if (CC==2&&C==1) |
| 1666 | tf_chan = 0; |
Linfeng Zhang | a1ae821 | 2016-09-07 15:29:03 -0700 | [diff] [blame] | 1667 | compute_band_energies(mode, freq, bandE, effEnd, C, LM, st->arch); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1668 | |
Jean-Marc Valin | 172f66a | 2013-04-27 02:29:52 -0400 | [diff] [blame] | 1669 | if (st->lfe) |
| 1670 | { |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1671 | for (i=2;i<end;i++) |
Jean-Marc Valin | 4365498 | 2013-07-07 00:39:35 -0400 | [diff] [blame] | 1672 | { |
Jean-Marc Valin | 172f66a | 2013-04-27 02:29:52 -0400 | [diff] [blame] | 1673 | bandE[i] = IMIN(bandE[i], MULT16_32_Q15(QCONST16(1e-4f,15),bandE[0])); |
Jean-Marc Valin | 4365498 | 2013-07-07 00:39:35 -0400 | [diff] [blame] | 1674 | bandE[i] = MAX32(bandE[i], EPSILON); |
| 1675 | } |
Jean-Marc Valin | 172f66a | 2013-04-27 02:29:52 -0400 | [diff] [blame] | 1676 | } |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1677 | amp2Log2(mode, effEnd, end, bandE, bandLogE, C); |
Jean-Marc Valin | 0f68696 | 2013-09-05 12:49:55 -0400 | [diff] [blame] | 1678 | |
| 1679 | ALLOC(surround_dynalloc, C*nbEBands, opus_val16); |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1680 | OPUS_CLEAR(surround_dynalloc, end); |
Jean-Marc Valin | d2c484b | 2013-05-06 16:02:31 -0400 | [diff] [blame] | 1681 | /* This computes how much masking takes place between surround channels */ |
Jean-Marc Valin | 7e0ca43 | 2015-12-25 13:12:58 -0500 | [diff] [blame] | 1682 | if (!hybrid&&st->energy_mask&&!st->lfe) |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 1683 | { |
Jean-Marc Valin | 039e9ab | 2013-09-12 03:05:43 -0400 | [diff] [blame] | 1684 | int mask_end; |
Jean-Marc Valin | ae7dc8a | 2013-09-13 15:05:50 -0400 | [diff] [blame] | 1685 | int midband; |
| 1686 | int count_dynalloc; |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 1687 | opus_val32 mask_avg=0; |
Jean-Marc Valin | 0f68696 | 2013-09-05 12:49:55 -0400 | [diff] [blame] | 1688 | opus_val32 diff=0; |
Jean-Marc Valin | 039e9ab | 2013-09-12 03:05:43 -0400 | [diff] [blame] | 1689 | int count=0; |
Jean-Marc Valin | 942fc81 | 2013-10-01 19:27:30 -0400 | [diff] [blame] | 1690 | mask_end = IMAX(2,st->lastCodedBands); |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 1691 | for (c=0;c<C;c++) |
Jean-Marc Valin | d2c484b | 2013-05-06 16:02:31 -0400 | [diff] [blame] | 1692 | { |
Jean-Marc Valin | 039e9ab | 2013-09-12 03:05:43 -0400 | [diff] [blame] | 1693 | for(i=0;i<mask_end;i++) |
Jean-Marc Valin | d2c484b | 2013-05-06 16:02:31 -0400 | [diff] [blame] | 1694 | { |
Jean-Marc Valin | ae7dc8a | 2013-09-13 15:05:50 -0400 | [diff] [blame] | 1695 | opus_val16 mask; |
| 1696 | mask = MAX16(MIN16(st->energy_mask[nbEBands*c+i], |
| 1697 | QCONST16(.25f, DB_SHIFT)), -QCONST16(2.0f, DB_SHIFT)); |
| 1698 | if (mask > 0) |
| 1699 | mask = HALF16(mask); |
| 1700 | mask_avg += MULT16_16(mask, eBands[i+1]-eBands[i]); |
| 1701 | count += eBands[i+1]-eBands[i]; |
| 1702 | diff += MULT16_16(mask, 1+2*i-mask_end); |
Jean-Marc Valin | d2c484b | 2013-05-06 16:02:31 -0400 | [diff] [blame] | 1703 | } |
| 1704 | } |
Gregory Maxwell | 6d2d5c4 | 2014-04-16 18:29:26 -0700 | [diff] [blame] | 1705 | celt_assert(count>0); |
Jean-Marc Valin | 039e9ab | 2013-09-12 03:05:43 -0400 | [diff] [blame] | 1706 | mask_avg = DIV32_16(mask_avg,count); |
Jean-Marc Valin | 36a21ed | 2013-09-14 15:46:09 -0400 | [diff] [blame] | 1707 | mask_avg += QCONST16(.2f, DB_SHIFT); |
Jean-Marc Valin | 039e9ab | 2013-09-12 03:05:43 -0400 | [diff] [blame] | 1708 | diff = diff*6/(C*(mask_end-1)*(mask_end+1)*mask_end); |
| 1709 | /* Again, being conservative */ |
| 1710 | diff = HALF32(diff); |
| 1711 | diff = MAX32(MIN32(diff, QCONST32(.031f, DB_SHIFT)), -QCONST32(.031f, DB_SHIFT)); |
Jean-Marc Valin | ae7dc8a | 2013-09-13 15:05:50 -0400 | [diff] [blame] | 1712 | /* Find the band that's in the middle of the coded spectrum */ |
| 1713 | for (midband=0;eBands[midband+1] < eBands[mask_end]/2;midband++); |
| 1714 | count_dynalloc=0; |
Jean-Marc Valin | 039e9ab | 2013-09-12 03:05:43 -0400 | [diff] [blame] | 1715 | for(i=0;i<mask_end;i++) |
Jean-Marc Valin | 0f68696 | 2013-09-05 12:49:55 -0400 | [diff] [blame] | 1716 | { |
| 1717 | opus_val32 lin; |
| 1718 | opus_val16 unmask; |
Jean-Marc Valin | ae7dc8a | 2013-09-13 15:05:50 -0400 | [diff] [blame] | 1719 | lin = mask_avg + diff*(i-midband); |
Jean-Marc Valin | 0f68696 | 2013-09-05 12:49:55 -0400 | [diff] [blame] | 1720 | if (C==2) |
Jean-Marc Valin | ae7dc8a | 2013-09-13 15:05:50 -0400 | [diff] [blame] | 1721 | unmask = MAX16(st->energy_mask[i], st->energy_mask[nbEBands+i]); |
Jean-Marc Valin | 0f68696 | 2013-09-05 12:49:55 -0400 | [diff] [blame] | 1722 | else |
Jean-Marc Valin | ae7dc8a | 2013-09-13 15:05:50 -0400 | [diff] [blame] | 1723 | unmask = st->energy_mask[i]; |
| 1724 | unmask = MIN16(unmask, QCONST16(.0f, DB_SHIFT)); |
| 1725 | unmask -= lin; |
Jean-Marc Valin | 0f68696 | 2013-09-05 12:49:55 -0400 | [diff] [blame] | 1726 | if (unmask > QCONST16(.25f, DB_SHIFT)) |
| 1727 | { |
| 1728 | surround_dynalloc[i] = unmask - QCONST16(.25f, DB_SHIFT); |
Jean-Marc Valin | ae7dc8a | 2013-09-13 15:05:50 -0400 | [diff] [blame] | 1729 | count_dynalloc++; |
| 1730 | } |
| 1731 | } |
| 1732 | if (count_dynalloc>=3) |
| 1733 | { |
| 1734 | /* If we need dynalloc in many bands, it's probably because our |
| 1735 | initial masking rate was too low. */ |
| 1736 | mask_avg += QCONST16(.25f, DB_SHIFT); |
| 1737 | if (mask_avg>0) |
| 1738 | { |
| 1739 | /* Something went really wrong in the original calculations, |
| 1740 | disabling masking. */ |
| 1741 | mask_avg = 0; |
| 1742 | diff = 0; |
Jean-Marc Valin | ff07200 | 2013-12-08 23:31:30 -0500 | [diff] [blame] | 1743 | OPUS_CLEAR(surround_dynalloc, mask_end); |
Jean-Marc Valin | ae7dc8a | 2013-09-13 15:05:50 -0400 | [diff] [blame] | 1744 | } else { |
| 1745 | for(i=0;i<mask_end;i++) |
| 1746 | surround_dynalloc[i] = MAX16(0, surround_dynalloc[i]-QCONST16(.25f, DB_SHIFT)); |
Jean-Marc Valin | 0f68696 | 2013-09-05 12:49:55 -0400 | [diff] [blame] | 1747 | } |
| 1748 | } |
Jean-Marc Valin | 36a21ed | 2013-09-14 15:46:09 -0400 | [diff] [blame] | 1749 | mask_avg += QCONST16(.2f, DB_SHIFT); |
Jean-Marc Valin | 0f68696 | 2013-09-05 12:49:55 -0400 | [diff] [blame] | 1750 | /* Convert to 1/64th units used for the trim */ |
| 1751 | surround_trim = 64*diff; |
| 1752 | /*printf("%d %d ", mask_avg, surround_trim);*/ |
| 1753 | surround_masking = mask_avg; |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 1754 | } |
Jean-Marc Valin | 92a06f5 | 2013-07-01 16:27:07 -0400 | [diff] [blame] | 1755 | /* Temporal VBR (but not for LFE) */ |
| 1756 | if (!st->lfe) |
Jean-Marc Valin | 3c0aa8f | 2013-06-25 14:10:27 -0400 | [diff] [blame] | 1757 | { |
| 1758 | opus_val16 follow=-QCONST16(10.0f,DB_SHIFT); |
Jean-Marc Valin | 8f46627 | 2013-10-28 21:50:10 -0400 | [diff] [blame] | 1759 | opus_val32 frame_avg=0; |
Jean-Marc Valin | 3c0aa8f | 2013-06-25 14:10:27 -0400 | [diff] [blame] | 1760 | opus_val16 offset = shortBlocks?HALF16(SHL16(LM, DB_SHIFT)):0; |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1761 | for(i=start;i<end;i++) |
Jean-Marc Valin | 3c0aa8f | 2013-06-25 14:10:27 -0400 | [diff] [blame] | 1762 | { |
| 1763 | follow = MAX16(follow-QCONST16(1.f, DB_SHIFT), bandLogE[i]-offset); |
| 1764 | if (C==2) |
| 1765 | follow = MAX16(follow, bandLogE[i+nbEBands]-offset); |
| 1766 | frame_avg += follow; |
| 1767 | } |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1768 | frame_avg /= (end-start); |
Jean-Marc Valin | 3c0aa8f | 2013-06-25 14:10:27 -0400 | [diff] [blame] | 1769 | temporal_vbr = SUB16(frame_avg,st->spec_avg); |
| 1770 | temporal_vbr = MIN16(QCONST16(3.f, DB_SHIFT), MAX16(-QCONST16(1.5f, DB_SHIFT), temporal_vbr)); |
| 1771 | st->spec_avg += MULT16_16_Q15(QCONST16(.02f, 15), temporal_vbr); |
| 1772 | } |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1773 | /*for (i=0;i<21;i++) |
| 1774 | printf("%f ", bandLogE[i]); |
| 1775 | printf("\n");*/ |
| 1776 | |
| 1777 | if (!secondMdct) |
| 1778 | { |
Jean-Marc Valin | ff07200 | 2013-12-08 23:31:30 -0500 | [diff] [blame] | 1779 | OPUS_COPY(bandLogE2, bandLogE, C*nbEBands); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1780 | } |
| 1781 | |
Jean-Marc Valin | 541a472 | 2013-02-17 21:21:30 -0500 | [diff] [blame] | 1782 | /* Last chance to catch any transient we might have missed in the |
| 1783 | time-domain analysis */ |
Jean-Marc Valin | 92d2492 | 2016-06-06 16:52:50 -0400 | [diff] [blame] | 1784 | if (LM>0 && ec_tell(enc)+3<=total_bits && !isTransient && st->complexity>=5 && !st->lfe && !hybrid) |
Jean-Marc Valin | 541a472 | 2013-02-17 21:21:30 -0500 | [diff] [blame] | 1785 | { |
Jean-Marc Valin | 9961809 | 2015-12-04 16:42:19 -0500 | [diff] [blame] | 1786 | if (patch_transient_decision(bandLogE, oldBandE, nbEBands, start, end, C)) |
Jean-Marc Valin | 541a472 | 2013-02-17 21:21:30 -0500 | [diff] [blame] | 1787 | { |
| 1788 | isTransient = 1; |
| 1789 | shortBlocks = M; |
Viswanath Puttagunta | f48abe8 | 2015-05-15 12:42:19 -0500 | [diff] [blame] | 1790 | compute_mdcts(mode, shortBlocks, in, freq, C, CC, LM, st->upsample, st->arch); |
Linfeng Zhang | a1ae821 | 2016-09-07 15:29:03 -0700 | [diff] [blame] | 1791 | compute_band_energies(mode, freq, bandE, effEnd, C, LM, st->arch); |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1792 | amp2Log2(mode, effEnd, end, bandE, bandLogE, C); |
Jean-Marc Valin | 541a472 | 2013-02-17 21:21:30 -0500 | [diff] [blame] | 1793 | /* Compensate for the scaling of short vs long mdcts */ |
| 1794 | for (i=0;i<C*nbEBands;i++) |
| 1795 | bandLogE2[i] += HALF16(SHL16(LM, DB_SHIFT)); |
Jean-Marc Valin | 16ba19a | 2013-06-27 03:40:44 -0400 | [diff] [blame] | 1796 | tf_estimate = QCONST16(.2f,14); |
Jean-Marc Valin | 541a472 | 2013-02-17 21:21:30 -0500 | [diff] [blame] | 1797 | } |
| 1798 | } |
| 1799 | |
| 1800 | if (LM>0 && ec_tell(enc)+3<=total_bits) |
| 1801 | ec_enc_bit_logp(enc, isTransient, 3); |
| 1802 | |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1803 | ALLOC(X, C*N, celt_norm); /**< Interleaved normalised MDCTs */ |
| 1804 | |
| 1805 | /* Band normalisation */ |
| 1806 | normalise_bands(mode, freq, X, bandE, effEnd, C, M); |
| 1807 | |
| 1808 | ALLOC(tf_res, nbEBands, int); |
Jean-Marc Valin | a6d663c | 2012-11-08 13:26:49 -0500 | [diff] [blame] | 1809 | /* Disable variable tf resolution for hybrid and at very low bitrate */ |
Jean-Marc Valin | 7e0ca43 | 2015-12-25 13:12:58 -0500 | [diff] [blame] | 1810 | if (effectiveBytes>=15*C && !hybrid && st->complexity>=2 && !st->lfe) |
Jean-Marc Valin | a6d663c | 2012-11-08 13:26:49 -0500 | [diff] [blame] | 1811 | { |
| 1812 | int lambda; |
Jean-Marc Valin | 7780d4a | 2016-06-08 15:19:03 -0400 | [diff] [blame] | 1813 | lambda = IMAX(5, 1280/effectiveBytes + 2); |
Jean-Marc Valin | 2ca6df0 | 2016-06-08 02:15:21 -0400 | [diff] [blame] | 1814 | tf_select = tf_analysis(mode, effEnd, isTransient, tf_res, lambda, X, N, LM, tf_estimate, tf_chan); |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1815 | for (i=effEnd;i<end;i++) |
Jean-Marc Valin | a6d663c | 2012-11-08 13:26:49 -0500 | [diff] [blame] | 1816 | tf_res[i] = tf_res[effEnd-1]; |
Jean-Marc Valin | 90f20c6 | 2016-10-28 16:44:38 -0400 | [diff] [blame] | 1817 | } else if (hybrid && weak_transient) |
| 1818 | { |
| 1819 | /* For weak transients, we rely on the fact that improving time resolution using |
| 1820 | TF on a long window is imperfect and will not result in an energy collapse at |
| 1821 | low bitrate. */ |
| 1822 | for (i=0;i<end;i++) |
| 1823 | tf_res[i] = 1; |
| 1824 | tf_select=0; |
Jean-Marc Valin | 8229f07 | 2016-06-06 16:54:29 -0400 | [diff] [blame] | 1825 | } else if (hybrid && effectiveBytes<15) |
| 1826 | { |
| 1827 | /* For low bitrate hybrid, we force temporal resolution to 5 ms rather than 2.5 ms. */ |
Jean-Marc Valin | 8229f07 | 2016-06-06 16:54:29 -0400 | [diff] [blame] | 1828 | for (i=0;i<end;i++) |
| 1829 | tf_res[i] = 0; |
| 1830 | tf_select=isTransient; |
Jean-Marc Valin | a6d663c | 2012-11-08 13:26:49 -0500 | [diff] [blame] | 1831 | } else { |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1832 | for (i=0;i<end;i++) |
Jean-Marc Valin | a6d663c | 2012-11-08 13:26:49 -0500 | [diff] [blame] | 1833 | tf_res[i] = isTransient; |
| 1834 | tf_select=0; |
| 1835 | } |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1836 | |
| 1837 | ALLOC(error, C*nbEBands, opus_val16); |
Jean-Marc Valin | 6fccb4b | 2016-07-04 01:06:11 -0400 | [diff] [blame] | 1838 | c=0; |
| 1839 | do { |
| 1840 | for (i=start;i<end;i++) |
| 1841 | { |
| 1842 | /* When the energy is stable, slightly bias energy quantization towards |
| 1843 | the previous error to make the gain more stable (a constant offset is |
| 1844 | better than fluctuations). */ |
| 1845 | if (ABS32(SUB32(bandLogE[i+c*nbEBands], oldBandE[i+c*nbEBands])) < QCONST16(2.f, DB_SHIFT)) |
| 1846 | { |
| 1847 | bandLogE[i+c*nbEBands] -= MULT16_16_Q15(energyError[i+c*nbEBands], QCONST16(0.25f, 15)); |
| 1848 | } |
| 1849 | } |
| 1850 | } while (++c < C); |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1851 | quant_coarse_energy(mode, start, end, effEnd, bandLogE, |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1852 | oldBandE, total_bits, error, enc, |
| 1853 | C, LM, nbAvailableBytes, st->force_intra, |
Jean-Marc Valin | b08c4ca | 2013-04-26 16:32:10 -0400 | [diff] [blame] | 1854 | &st->delayedIntra, st->complexity >= 4, st->loss_rate, st->lfe); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1855 | |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1856 | tf_encode(start, end, isTransient, tf_res, LM, tf_select, enc); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1857 | |
| 1858 | if (ec_tell(enc)+4<=total_bits) |
| 1859 | { |
Jean-Marc Valin | 172f66a | 2013-04-27 02:29:52 -0400 | [diff] [blame] | 1860 | if (st->lfe) |
| 1861 | { |
| 1862 | st->tapset_decision = 0; |
| 1863 | st->spread_decision = SPREAD_NORMAL; |
Jean-Marc Valin | f705e9b | 2016-06-06 13:43:13 -0400 | [diff] [blame] | 1864 | } else if (hybrid) |
| 1865 | { |
| 1866 | if (st->complexity == 0) |
| 1867 | st->spread_decision = SPREAD_NONE; |
| 1868 | else if (isTransient) |
| 1869 | st->spread_decision = SPREAD_NORMAL; |
| 1870 | else |
| 1871 | st->spread_decision = SPREAD_AGGRESSIVE; |
| 1872 | } else if (shortBlocks || st->complexity < 3 || nbAvailableBytes < 10*C) |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1873 | { |
| 1874 | if (st->complexity == 0) |
| 1875 | st->spread_decision = SPREAD_NONE; |
Jean-Marc Valin | 1fd1d7d | 2012-11-08 17:22:07 -0500 | [diff] [blame] | 1876 | else |
| 1877 | st->spread_decision = SPREAD_NORMAL; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1878 | } else { |
Jean-Marc Valin | 41fd7a1 | 2012-12-12 14:41:29 -0500 | [diff] [blame] | 1879 | /* Disable new spreading+tapset estimator until we can show it works |
| 1880 | better than the old one. So far it seems like spreading_decision() |
| 1881 | works best. */ |
Jean-Marc Valin | ab86a9c | 2013-11-13 23:06:25 -0500 | [diff] [blame] | 1882 | #if 0 |
| 1883 | if (st->analysis.valid) |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1884 | { |
| 1885 | static const opus_val16 spread_thresholds[3] = {-QCONST16(.6f, 15), -QCONST16(.2f, 15), -QCONST16(.07f, 15)}; |
| 1886 | static const opus_val16 spread_histeresis[3] = {QCONST16(.15f, 15), QCONST16(.07f, 15), QCONST16(.02f, 15)}; |
| 1887 | static const opus_val16 tapset_thresholds[2] = {QCONST16(.0f, 15), QCONST16(.15f, 15)}; |
| 1888 | static const opus_val16 tapset_histeresis[2] = {QCONST16(.1f, 15), QCONST16(.05f, 15)}; |
| 1889 | st->spread_decision = hysteresis_decision(-st->analysis.tonality, spread_thresholds, spread_histeresis, 3, st->spread_decision); |
| 1890 | st->tapset_decision = hysteresis_decision(st->analysis.tonality_slope, tapset_thresholds, tapset_histeresis, 2, st->tapset_decision); |
Jean-Marc Valin | ab86a9c | 2013-11-13 23:06:25 -0500 | [diff] [blame] | 1891 | } else |
| 1892 | #endif |
| 1893 | { |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1894 | st->spread_decision = spreading_decision(mode, X, |
| 1895 | &st->tonal_average, st->spread_decision, &st->hf_average, |
| 1896 | &st->tapset_decision, pf_on&&!shortBlocks, effEnd, C, M); |
| 1897 | } |
| 1898 | /*printf("%d %d\n", st->tapset_decision, st->spread_decision);*/ |
| 1899 | /*printf("%f %d %f %d\n\n", st->analysis.tonality, st->spread_decision, st->analysis.tonality_slope, st->tapset_decision);*/ |
| 1900 | } |
| 1901 | ec_enc_icdf(enc, st->spread_decision, spread_icdf, 5); |
| 1902 | } |
| 1903 | |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1904 | ALLOC(offsets, nbEBands, int); |
| 1905 | |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1906 | maxDepth = dynalloc_analysis(bandLogE, bandLogE2, nbEBands, start, end, C, offsets, |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 1907 | st->lsb_depth, mode->logN, isTransient, st->vbr, st->constrained_vbr, |
Jean-Marc Valin | 0cc4d96 | 2017-06-01 03:14:13 -0400 | [diff] [blame] | 1908 | eBands, LM, effectiveBytes, &tot_boost, st->lfe, surround_dynalloc, &st->analysis); |
Jean-Marc Valin | b08c4ca | 2013-04-26 16:32:10 -0400 | [diff] [blame] | 1909 | /* For LFE, everything interesting is in the first band */ |
| 1910 | if (st->lfe) |
| 1911 | offsets[0] = IMIN(8, effectiveBytes/3); |
Jean-Marc Valin | 10b30e7 | 2012-11-10 00:44:03 -0500 | [diff] [blame] | 1912 | ALLOC(cap, nbEBands, int); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1913 | init_caps(mode,cap,LM,C); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1914 | |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1915 | dynalloc_logp = 6; |
| 1916 | total_bits<<=BITRES; |
| 1917 | total_boost = 0; |
| 1918 | tell = ec_tell_frac(enc); |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1919 | for (i=start;i<end;i++) |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1920 | { |
| 1921 | int width, quanta; |
| 1922 | int dynalloc_loop_logp; |
| 1923 | int boost; |
| 1924 | int j; |
| 1925 | width = C*(eBands[i+1]-eBands[i])<<LM; |
| 1926 | /* quanta is 6 bits, but no more than 1 bit/sample |
| 1927 | and no less than 1/8 bit/sample */ |
| 1928 | quanta = IMIN(width<<BITRES, IMAX(6<<BITRES, width)); |
| 1929 | dynalloc_loop_logp = dynalloc_logp; |
| 1930 | boost = 0; |
| 1931 | for (j = 0; tell+(dynalloc_loop_logp<<BITRES) < total_bits-total_boost |
| 1932 | && boost < cap[i]; j++) |
| 1933 | { |
| 1934 | int flag; |
| 1935 | flag = j<offsets[i]; |
| 1936 | ec_enc_bit_logp(enc, flag, dynalloc_loop_logp); |
| 1937 | tell = ec_tell_frac(enc); |
| 1938 | if (!flag) |
| 1939 | break; |
| 1940 | boost += quanta; |
| 1941 | total_boost += quanta; |
| 1942 | dynalloc_loop_logp = 1; |
| 1943 | } |
| 1944 | /* Making dynalloc more likely */ |
| 1945 | if (j) |
| 1946 | dynalloc_logp = IMAX(2, dynalloc_logp-1); |
| 1947 | offsets[i] = boost; |
| 1948 | } |
| 1949 | |
| 1950 | if (C==2) |
| 1951 | { |
Jean-Marc Valin | 2924af4 | 2013-11-25 21:24:30 -0500 | [diff] [blame] | 1952 | static const opus_val16 intensity_thresholds[21]= |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1953 | /* 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 off*/ |
Jean-Marc Valin | 2924af4 | 2013-11-25 21:24:30 -0500 | [diff] [blame] | 1954 | { 1, 2, 3, 4, 5, 6, 7, 8,16,24,36,44,50,56,62,67,72,79,88,106,134}; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1955 | static const opus_val16 intensity_histeresis[21]= |
Jean-Marc Valin | a47d6f3 | 2013-11-24 23:59:09 -0500 | [diff] [blame] | 1956 | { 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 4, 5, 6, 8, 8}; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1957 | |
| 1958 | /* Always use MS for 2.5 ms frames until we can do a better analysis */ |
| 1959 | if (LM!=0) |
| 1960 | dual_stereo = stereo_analysis(mode, X, LM, N); |
| 1961 | |
Jean-Marc Valin | 086ea7c | 2013-11-29 16:47:52 -0500 | [diff] [blame] | 1962 | st->intensity = hysteresis_decision((opus_val16)(equiv_rate/1000), |
Jean-Marc Valin | 2924af4 | 2013-11-25 21:24:30 -0500 | [diff] [blame] | 1963 | intensity_thresholds, intensity_histeresis, 21, st->intensity); |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 1964 | st->intensity = IMIN(end,IMAX(start, st->intensity)); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1965 | } |
| 1966 | |
| 1967 | alloc_trim = 5; |
| 1968 | if (tell+(6<<BITRES) <= total_bits - total_boost) |
| 1969 | { |
Jean-Marc Valin | 0247d34 | 2015-12-05 14:31:54 -0500 | [diff] [blame] | 1970 | if (start > 0 || st->lfe) |
| 1971 | { |
| 1972 | st->stereo_saving = 0; |
Jean-Marc Valin | b08c4ca | 2013-04-26 16:32:10 -0400 | [diff] [blame] | 1973 | alloc_trim = 5; |
Jean-Marc Valin | 0247d34 | 2015-12-05 14:31:54 -0500 | [diff] [blame] | 1974 | } else { |
Jean-Marc Valin | b08c4ca | 2013-04-26 16:32:10 -0400 | [diff] [blame] | 1975 | alloc_trim = alloc_trim_analysis(mode, X, bandLogE, |
xiangmingzhu | c95c9a0 | 2014-04-30 15:48:07 +0800 | [diff] [blame] | 1976 | end, LM, C, N, &st->analysis, &st->stereo_saving, tf_estimate, |
Jean-Marc Valin | a671ac5 | 2017-05-24 01:07:20 -0400 | [diff] [blame] | 1977 | st->intensity, surround_trim, equiv_rate, st->arch); |
Jean-Marc Valin | 0247d34 | 2015-12-05 14:31:54 -0500 | [diff] [blame] | 1978 | } |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1979 | ec_enc_icdf(enc, alloc_trim, trim_icdf, 7); |
| 1980 | tell = ec_tell_frac(enc); |
| 1981 | } |
| 1982 | |
| 1983 | /* Variable bitrate */ |
| 1984 | if (vbr_rate>0) |
| 1985 | { |
| 1986 | opus_val16 alpha; |
| 1987 | opus_int32 delta; |
| 1988 | /* The target rate in 8th bits per frame */ |
| 1989 | opus_int32 target, base_target; |
| 1990 | opus_int32 min_allowed; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1991 | int lm_diff = mode->maxLM - LM; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 1992 | |
| 1993 | /* Don't attempt to use more than 510 kb/s, even for frames smaller than 20 ms. |
| 1994 | The CELT allocator will just not be able to use more than that anyway. */ |
| 1995 | nbCompressedBytes = IMIN(nbCompressedBytes,1275>>(3-LM)); |
Jean-Marc Valin | bcd6aba | 2015-12-06 10:50:15 -0500 | [diff] [blame] | 1996 | if (!hybrid) |
| 1997 | { |
| 1998 | base_target = vbr_rate - ((40*C+20)<<BITRES); |
| 1999 | } else { |
| 2000 | base_target = IMAX(0, vbr_rate - ((9*C+4)<<BITRES)); |
| 2001 | } |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2002 | |
| 2003 | if (st->constrained_vbr) |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 2004 | base_target += (st->vbr_offset>>lm_diff); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2005 | |
Jean-Marc Valin | bcd6aba | 2015-12-06 10:50:15 -0500 | [diff] [blame] | 2006 | if (!hybrid) |
| 2007 | { |
| 2008 | target = compute_vbr(mode, &st->analysis, base_target, LM, equiv_rate, |
Jean-Marc Valin | 28733d1 | 2013-06-10 03:30:01 -0400 | [diff] [blame] | 2009 | st->lastCodedBands, C, st->intensity, st->constrained_vbr, |
| 2010 | st->stereo_saving, tot_boost, tf_estimate, pitch_change, maxDepth, |
Jean-Marc Valin | 132ed59 | 2016-11-04 11:41:13 -0400 | [diff] [blame] | 2011 | st->lfe, st->energy_mask!=NULL, surround_masking, |
Jean-Marc Valin | 3c0aa8f | 2013-06-25 14:10:27 -0400 | [diff] [blame] | 2012 | temporal_vbr); |
Jean-Marc Valin | bcd6aba | 2015-12-06 10:50:15 -0500 | [diff] [blame] | 2013 | } else { |
| 2014 | target = base_target; |
Jean-Marc Valin | 61714e9 | 2016-04-23 00:34:53 -0400 | [diff] [blame] | 2015 | /* Tonal frames (offset<100) need more bits than noisy (offset>100) ones. */ |
| 2016 | if (st->silk_info.offset < 100) target += 12 << BITRES >> (3-LM); |
| 2017 | if (st->silk_info.offset > 100) target -= 18 << BITRES >> (3-LM); |
Jean-Marc Valin | 78fc664 | 2016-05-31 17:54:20 -0400 | [diff] [blame] | 2018 | /* Boosting bitrate on transients and vowels with significant temporal |
| 2019 | spikes. */ |
Mark Harris | d6d7037 | 2017-02-20 19:51:40 -0800 | [diff] [blame] | 2020 | target += (opus_int32)MULT16_16_Q14(tf_estimate-QCONST16(.25f,14), (50<<BITRES)); |
Jean-Marc Valin | bcd6aba | 2015-12-06 10:50:15 -0500 | [diff] [blame] | 2021 | /* If we have a strong transient, let's make sure it has enough bits to code |
| 2022 | the first two bands, so that it can use folding rather than noise. */ |
| 2023 | if (tf_estimate > QCONST16(.7f,14)) |
Jean-Marc Valin | 78fc664 | 2016-05-31 17:54:20 -0400 | [diff] [blame] | 2024 | target = IMAX(target, 50<<BITRES); |
Jean-Marc Valin | bcd6aba | 2015-12-06 10:50:15 -0500 | [diff] [blame] | 2025 | } |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2026 | /* The current offset is removed from the target and the space used |
| 2027 | so far is added*/ |
| 2028 | target=target+tell; |
| 2029 | /* In VBR mode the frame size must not be reduced so much that it would |
| 2030 | result in the encoder running out of bits. |
| 2031 | The margin of 2 bytes ensures that none of the bust-prevention logic |
| 2032 | in the decoder will have triggered so far. */ |
Jean-Marc Valin | bcd6aba | 2015-12-06 10:50:15 -0500 | [diff] [blame] | 2033 | min_allowed = ((tell+total_boost+(1<<(BITRES+3))-1)>>(BITRES+3)) + 2; |
| 2034 | /* Take into account the 37 bits we need to have left in the packet to |
| 2035 | signal a redundant frame in hybrid mode. Creating a shorter packet would |
| 2036 | create an entropy coder desync. */ |
| 2037 | if (hybrid) |
| 2038 | min_allowed = IMAX(min_allowed, (tell0_frac+(37<<BITRES)+total_boost+(1<<(BITRES+3))-1)>>(BITRES+3)); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2039 | |
| 2040 | nbAvailableBytes = (target+(1<<(BITRES+2)))>>(BITRES+3); |
| 2041 | nbAvailableBytes = IMAX(min_allowed,nbAvailableBytes); |
Jean-Marc Valin | bcd6aba | 2015-12-06 10:50:15 -0500 | [diff] [blame] | 2042 | nbAvailableBytes = IMIN(nbCompressedBytes,nbAvailableBytes); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2043 | |
| 2044 | /* By how much did we "miss" the target on that frame */ |
| 2045 | delta = target - vbr_rate; |
| 2046 | |
| 2047 | target=nbAvailableBytes<<(BITRES+3); |
| 2048 | |
| 2049 | /*If the frame is silent we don't adjust our drift, otherwise |
| 2050 | the encoder will shoot to very high rates after hitting a |
| 2051 | span of silence, but we do allow the bitres to refill. |
| 2052 | This means that we'll undershoot our target in CVBR/VBR modes |
| 2053 | on files with lots of silence. */ |
| 2054 | if(silence) |
| 2055 | { |
| 2056 | nbAvailableBytes = 2; |
| 2057 | target = 2*8<<BITRES; |
| 2058 | delta = 0; |
| 2059 | } |
| 2060 | |
| 2061 | if (st->vbr_count < 970) |
| 2062 | { |
| 2063 | st->vbr_count++; |
| 2064 | alpha = celt_rcp(SHL32(EXTEND32(st->vbr_count+20),16)); |
| 2065 | } else |
| 2066 | alpha = QCONST16(.001f,15); |
| 2067 | /* How many bits have we used in excess of what we're allowed */ |
| 2068 | if (st->constrained_vbr) |
| 2069 | st->vbr_reservoir += target - vbr_rate; |
| 2070 | /*printf ("%d\n", st->vbr_reservoir);*/ |
| 2071 | |
| 2072 | /* Compute the offset we need to apply in order to reach the target */ |
| 2073 | if (st->constrained_vbr) |
| 2074 | { |
| 2075 | st->vbr_drift += (opus_int32)MULT16_32_Q15(alpha,(delta*(1<<lm_diff))-st->vbr_offset-st->vbr_drift); |
| 2076 | st->vbr_offset = -st->vbr_drift; |
| 2077 | } |
| 2078 | /*printf ("%d\n", st->vbr_drift);*/ |
| 2079 | |
| 2080 | if (st->constrained_vbr && st->vbr_reservoir < 0) |
| 2081 | { |
| 2082 | /* We're under the min value -- increase rate */ |
| 2083 | int adjust = (-st->vbr_reservoir)/(8<<BITRES); |
| 2084 | /* Unless we're just coding silence */ |
| 2085 | nbAvailableBytes += silence?0:adjust; |
| 2086 | st->vbr_reservoir = 0; |
| 2087 | /*printf ("+%d\n", adjust);*/ |
| 2088 | } |
Jean-Marc Valin | bcd6aba | 2015-12-06 10:50:15 -0500 | [diff] [blame] | 2089 | nbCompressedBytes = IMIN(nbCompressedBytes,nbAvailableBytes); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2090 | /*printf("%d\n", nbCompressedBytes*50*8);*/ |
| 2091 | /* This moves the raw bits to take into account the new compressed size */ |
| 2092 | ec_enc_shrink(enc, nbCompressedBytes); |
| 2093 | } |
| 2094 | |
| 2095 | /* Bit allocation */ |
| 2096 | ALLOC(fine_quant, nbEBands, int); |
| 2097 | ALLOC(pulses, nbEBands, int); |
| 2098 | ALLOC(fine_priority, nbEBands, int); |
| 2099 | |
| 2100 | /* bits = packet size - where we are - safety*/ |
| 2101 | bits = (((opus_int32)nbCompressedBytes*8)<<BITRES) - ec_tell_frac(enc) - 1; |
| 2102 | anti_collapse_rsv = isTransient&&LM>=2&&bits>=((LM+2)<<BITRES) ? (1<<BITRES) : 0; |
| 2103 | bits -= anti_collapse_rsv; |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 2104 | signalBandwidth = end-1; |
Jean-Marc Valin | 3ab03e0 | 2013-09-06 16:00:39 -0400 | [diff] [blame] | 2105 | #ifndef DISABLE_FLOAT_API |
Jean-Marc Valin | 5fb50ad | 2012-12-21 01:23:26 -0500 | [diff] [blame] | 2106 | if (st->analysis.valid) |
Jean-Marc Valin | 6e277c6 | 2013-05-17 14:15:31 -0400 | [diff] [blame] | 2107 | { |
| 2108 | int min_bandwidth; |
Jean-Marc Valin | c1959e7 | 2013-11-08 19:24:10 -0500 | [diff] [blame] | 2109 | if (equiv_rate < (opus_int32)32000*C) |
Jean-Marc Valin | 6e277c6 | 2013-05-17 14:15:31 -0400 | [diff] [blame] | 2110 | min_bandwidth = 13; |
Jean-Marc Valin | c1959e7 | 2013-11-08 19:24:10 -0500 | [diff] [blame] | 2111 | else if (equiv_rate < (opus_int32)48000*C) |
Jean-Marc Valin | 6e277c6 | 2013-05-17 14:15:31 -0400 | [diff] [blame] | 2112 | min_bandwidth = 16; |
Jean-Marc Valin | c1959e7 | 2013-11-08 19:24:10 -0500 | [diff] [blame] | 2113 | else if (equiv_rate < (opus_int32)60000*C) |
Jean-Marc Valin | 6e277c6 | 2013-05-17 14:15:31 -0400 | [diff] [blame] | 2114 | min_bandwidth = 18; |
Jean-Marc Valin | c1959e7 | 2013-11-08 19:24:10 -0500 | [diff] [blame] | 2115 | else if (equiv_rate < (opus_int32)80000*C) |
Jean-Marc Valin | 6e277c6 | 2013-05-17 14:15:31 -0400 | [diff] [blame] | 2116 | min_bandwidth = 19; |
| 2117 | else |
| 2118 | min_bandwidth = 20; |
| 2119 | signalBandwidth = IMAX(st->analysis.bandwidth, min_bandwidth); |
| 2120 | } |
Jean-Marc Valin | 5fb50ad | 2012-12-21 01:23:26 -0500 | [diff] [blame] | 2121 | #endif |
Jean-Marc Valin | b08c4ca | 2013-04-26 16:32:10 -0400 | [diff] [blame] | 2122 | if (st->lfe) |
| 2123 | signalBandwidth = 1; |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 2124 | codedBands = compute_allocation(mode, start, end, offsets, cap, |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2125 | alloc_trim, &st->intensity, &dual_stereo, bits, &balance, pulses, |
Jean-Marc Valin | 5fb50ad | 2012-12-21 01:23:26 -0500 | [diff] [blame] | 2126 | fine_quant, fine_priority, C, LM, enc, 1, st->lastCodedBands, signalBandwidth); |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 2127 | if (st->lastCodedBands) |
| 2128 | st->lastCodedBands = IMIN(st->lastCodedBands+1,IMAX(st->lastCodedBands-1,codedBands)); |
| 2129 | else |
| 2130 | st->lastCodedBands = codedBands; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2131 | |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 2132 | quant_fine_energy(mode, start, end, oldBandE, error, fine_quant, enc, C); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2133 | |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2134 | /* Residual quantisation */ |
| 2135 | ALLOC(collapse_masks, C*nbEBands, unsigned char); |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 2136 | quant_all_bands(1, mode, start, end, X, C==2 ? X+N : NULL, collapse_masks, |
xiangmingzhu | c95c9a0 | 2014-04-30 15:48:07 +0800 | [diff] [blame] | 2137 | bandE, pulses, shortBlocks, st->spread_decision, |
| 2138 | dual_stereo, st->intensity, tf_res, nbCompressedBytes*(8<<BITRES)-anti_collapse_rsv, |
Jean-Marc Valin | 18a380a | 2016-04-20 13:27:06 -0400 | [diff] [blame] | 2139 | balance, enc, LM, codedBands, &st->rng, st->complexity, st->arch, st->disable_inv); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2140 | |
| 2141 | if (anti_collapse_rsv > 0) |
| 2142 | { |
| 2143 | anti_collapse_on = st->consec_transient<2; |
| 2144 | #ifdef FUZZING |
| 2145 | anti_collapse_on = rand()&0x1; |
| 2146 | #endif |
| 2147 | ec_enc_bits(enc, anti_collapse_on, 1); |
| 2148 | } |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 2149 | quant_energy_finalise(mode, start, end, oldBandE, error, fine_quant, fine_priority, nbCompressedBytes*8-ec_tell(enc), enc, C); |
Jean-Marc Valin | 6fccb4b | 2016-07-04 01:06:11 -0400 | [diff] [blame] | 2150 | OPUS_CLEAR(energyError, nbEBands*CC); |
| 2151 | c=0; |
| 2152 | do { |
| 2153 | for (i=start;i<end;i++) |
| 2154 | { |
| 2155 | energyError[i+c*nbEBands] = MAX16(-QCONST16(0.5f, 15), MIN16(QCONST16(0.5f, 15), error[i+c*nbEBands])); |
| 2156 | } |
| 2157 | } while (++c < C); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2158 | |
| 2159 | if (silence) |
| 2160 | { |
| 2161 | for (i=0;i<C*nbEBands;i++) |
| 2162 | oldBandE[i] = -QCONST16(28.f,DB_SHIFT); |
| 2163 | } |
| 2164 | |
| 2165 | #ifdef RESYNTH |
| 2166 | /* Re-synthesis of the coded audio if required */ |
| 2167 | { |
| 2168 | celt_sig *out_mem[2]; |
| 2169 | |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2170 | if (anti_collapse_on) |
| 2171 | { |
| 2172 | anti_collapse(mode, X, collapse_masks, LM, C, N, |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 2173 | start, end, oldBandE, oldLogE, oldLogE2, pulses, st->rng); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2174 | } |
| 2175 | |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2176 | c=0; do { |
Nils Wallménius | e0884fe | 2012-12-01 21:11:50 +0100 | [diff] [blame] | 2177 | OPUS_MOVE(st->syn_mem[c], st->syn_mem[c]+N, 2*MAX_PERIOD-N+overlap/2); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2178 | } while (++c<CC); |
| 2179 | |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2180 | c=0; do { |
| 2181 | out_mem[c] = st->syn_mem[c]+2*MAX_PERIOD-N; |
| 2182 | } while (++c<CC); |
| 2183 | |
Viswanath Puttagunta | 19c5406 | 2015-05-15 12:42:20 -0500 | [diff] [blame] | 2184 | celt_synthesis(mode, X, out_mem, oldBandE, start, effEnd, |
| 2185 | C, CC, isTransient, LM, st->upsample, silence, st->arch); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2186 | |
| 2187 | c=0; do { |
| 2188 | st->prefilter_period=IMAX(st->prefilter_period, COMBFILTER_MINPERIOD); |
| 2189 | st->prefilter_period_old=IMAX(st->prefilter_period_old, COMBFILTER_MINPERIOD); |
| 2190 | comb_filter(out_mem[c], out_mem[c], st->prefilter_period_old, st->prefilter_period, mode->shortMdctSize, |
| 2191 | st->prefilter_gain_old, st->prefilter_gain, st->prefilter_tapset_old, st->prefilter_tapset, |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 2192 | mode->window, overlap); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2193 | if (LM!=0) |
| 2194 | comb_filter(out_mem[c]+mode->shortMdctSize, out_mem[c]+mode->shortMdctSize, st->prefilter_period, pitch_index, N-mode->shortMdctSize, |
| 2195 | st->prefilter_gain, gain1, st->prefilter_tapset, prefilter_tapset, |
| 2196 | mode->window, overlap); |
| 2197 | } while (++c<CC); |
| 2198 | |
| 2199 | /* We reuse freq[] as scratch space for the de-emphasis */ |
Jean-Marc Valin | bdc7b93 | 2014-01-06 08:58:38 -0500 | [diff] [blame] | 2200 | deemphasis(out_mem, (opus_val16*)pcm, N, CC, st->upsample, mode->preemph, st->preemph_memD); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2201 | st->prefilter_period_old = st->prefilter_period; |
| 2202 | st->prefilter_gain_old = st->prefilter_gain; |
| 2203 | st->prefilter_tapset_old = st->prefilter_tapset; |
| 2204 | } |
| 2205 | #endif |
| 2206 | |
| 2207 | st->prefilter_period = pitch_index; |
| 2208 | st->prefilter_gain = gain1; |
| 2209 | st->prefilter_tapset = prefilter_tapset; |
| 2210 | #ifdef RESYNTH |
| 2211 | if (LM!=0) |
| 2212 | { |
| 2213 | st->prefilter_period_old = st->prefilter_period; |
| 2214 | st->prefilter_gain_old = st->prefilter_gain; |
| 2215 | st->prefilter_tapset_old = st->prefilter_tapset; |
| 2216 | } |
| 2217 | #endif |
| 2218 | |
| 2219 | if (CC==2&&C==1) { |
Jean-Marc Valin | ff07200 | 2013-12-08 23:31:30 -0500 | [diff] [blame] | 2220 | OPUS_COPY(&oldBandE[nbEBands], oldBandE, nbEBands); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2221 | } |
| 2222 | |
| 2223 | if (!isTransient) |
| 2224 | { |
Jean-Marc Valin | ff07200 | 2013-12-08 23:31:30 -0500 | [diff] [blame] | 2225 | OPUS_COPY(oldLogE2, oldLogE, CC*nbEBands); |
| 2226 | OPUS_COPY(oldLogE, oldBandE, CC*nbEBands); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2227 | } else { |
| 2228 | for (i=0;i<CC*nbEBands;i++) |
| 2229 | oldLogE[i] = MIN16(oldLogE[i], oldBandE[i]); |
| 2230 | } |
| 2231 | /* In case start or end were to change */ |
| 2232 | c=0; do |
| 2233 | { |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 2234 | for (i=0;i<start;i++) |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2235 | { |
| 2236 | oldBandE[c*nbEBands+i]=0; |
| 2237 | oldLogE[c*nbEBands+i]=oldLogE2[c*nbEBands+i]=-QCONST16(28.f,DB_SHIFT); |
| 2238 | } |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 2239 | for (i=end;i<nbEBands;i++) |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2240 | { |
| 2241 | oldBandE[c*nbEBands+i]=0; |
| 2242 | oldLogE[c*nbEBands+i]=oldLogE2[c*nbEBands+i]=-QCONST16(28.f,DB_SHIFT); |
| 2243 | } |
| 2244 | } while (++c<CC); |
| 2245 | |
Jean-Marc Valin | 3252bf2 | 2013-04-19 03:14:28 -0400 | [diff] [blame] | 2246 | if (isTransient || transient_got_disabled) |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2247 | st->consec_transient++; |
| 2248 | else |
| 2249 | st->consec_transient=0; |
| 2250 | st->rng = enc->rng; |
| 2251 | |
| 2252 | /* If there's any room left (can only happen for very high rates), |
| 2253 | it's already filled with zeros */ |
| 2254 | ec_enc_done(enc); |
| 2255 | |
| 2256 | #ifdef CUSTOM_MODES |
| 2257 | if (st->signalling) |
| 2258 | nbCompressedBytes++; |
| 2259 | #endif |
| 2260 | |
| 2261 | RESTORE_STACK; |
| 2262 | if (ec_get_error(enc)) |
| 2263 | return OPUS_INTERNAL_ERROR; |
| 2264 | else |
| 2265 | return nbCompressedBytes; |
| 2266 | } |
| 2267 | |
| 2268 | |
| 2269 | #ifdef CUSTOM_MODES |
| 2270 | |
| 2271 | #ifdef FIXED_POINT |
| 2272 | int opus_custom_encode(CELTEncoder * OPUS_RESTRICT st, const opus_int16 * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes) |
| 2273 | { |
| 2274 | return celt_encode_with_ec(st, pcm, frame_size, compressed, nbCompressedBytes, NULL); |
| 2275 | } |
| 2276 | |
| 2277 | #ifndef DISABLE_FLOAT_API |
| 2278 | int opus_custom_encode_float(CELTEncoder * OPUS_RESTRICT st, const float * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes) |
| 2279 | { |
| 2280 | int j, ret, C, N; |
| 2281 | VARDECL(opus_int16, in); |
| 2282 | ALLOC_STACK; |
| 2283 | |
| 2284 | if (pcm==NULL) |
| 2285 | return OPUS_BAD_ARG; |
| 2286 | |
| 2287 | C = st->channels; |
| 2288 | N = frame_size; |
| 2289 | ALLOC(in, C*N, opus_int16); |
| 2290 | |
| 2291 | for (j=0;j<C*N;j++) |
| 2292 | in[j] = FLOAT2INT16(pcm[j]); |
| 2293 | |
| 2294 | ret=celt_encode_with_ec(st,in,frame_size,compressed,nbCompressedBytes, NULL); |
| 2295 | #ifdef RESYNTH |
| 2296 | for (j=0;j<C*N;j++) |
| 2297 | ((float*)pcm)[j]=in[j]*(1.f/32768.f); |
| 2298 | #endif |
| 2299 | RESTORE_STACK; |
| 2300 | return ret; |
| 2301 | } |
| 2302 | #endif /* DISABLE_FLOAT_API */ |
| 2303 | #else |
| 2304 | |
| 2305 | int opus_custom_encode(CELTEncoder * OPUS_RESTRICT st, const opus_int16 * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes) |
| 2306 | { |
| 2307 | int j, ret, C, N; |
| 2308 | VARDECL(celt_sig, in); |
| 2309 | ALLOC_STACK; |
| 2310 | |
| 2311 | if (pcm==NULL) |
| 2312 | return OPUS_BAD_ARG; |
| 2313 | |
| 2314 | C=st->channels; |
| 2315 | N=frame_size; |
| 2316 | ALLOC(in, C*N, celt_sig); |
| 2317 | for (j=0;j<C*N;j++) { |
| 2318 | in[j] = SCALEOUT(pcm[j]); |
| 2319 | } |
| 2320 | |
| 2321 | ret = celt_encode_with_ec(st,in,frame_size,compressed,nbCompressedBytes, NULL); |
| 2322 | #ifdef RESYNTH |
| 2323 | for (j=0;j<C*N;j++) |
| 2324 | ((opus_int16*)pcm)[j] = FLOAT2INT16(in[j]); |
| 2325 | #endif |
| 2326 | RESTORE_STACK; |
| 2327 | return ret; |
| 2328 | } |
| 2329 | |
| 2330 | int opus_custom_encode_float(CELTEncoder * OPUS_RESTRICT st, const float * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes) |
| 2331 | { |
| 2332 | return celt_encode_with_ec(st, pcm, frame_size, compressed, nbCompressedBytes, NULL); |
| 2333 | } |
| 2334 | |
| 2335 | #endif |
| 2336 | |
| 2337 | #endif /* CUSTOM_MODES */ |
| 2338 | |
| 2339 | int opus_custom_encoder_ctl(CELTEncoder * OPUS_RESTRICT st, int request, ...) |
| 2340 | { |
| 2341 | va_list ap; |
| 2342 | |
| 2343 | va_start(ap, request); |
| 2344 | switch (request) |
| 2345 | { |
| 2346 | case OPUS_SET_COMPLEXITY_REQUEST: |
| 2347 | { |
| 2348 | int value = va_arg(ap, opus_int32); |
| 2349 | if (value<0 || value>10) |
| 2350 | goto bad_arg; |
| 2351 | st->complexity = value; |
| 2352 | } |
| 2353 | break; |
| 2354 | case CELT_SET_START_BAND_REQUEST: |
| 2355 | { |
| 2356 | opus_int32 value = va_arg(ap, opus_int32); |
| 2357 | if (value<0 || value>=st->mode->nbEBands) |
| 2358 | goto bad_arg; |
| 2359 | st->start = value; |
| 2360 | } |
| 2361 | break; |
| 2362 | case CELT_SET_END_BAND_REQUEST: |
| 2363 | { |
| 2364 | opus_int32 value = va_arg(ap, opus_int32); |
| 2365 | if (value<1 || value>st->mode->nbEBands) |
| 2366 | goto bad_arg; |
| 2367 | st->end = value; |
| 2368 | } |
| 2369 | break; |
| 2370 | case CELT_SET_PREDICTION_REQUEST: |
| 2371 | { |
| 2372 | int value = va_arg(ap, opus_int32); |
| 2373 | if (value<0 || value>2) |
| 2374 | goto bad_arg; |
| 2375 | st->disable_pf = value<=1; |
| 2376 | st->force_intra = value==0; |
| 2377 | } |
| 2378 | break; |
| 2379 | case OPUS_SET_PACKET_LOSS_PERC_REQUEST: |
| 2380 | { |
| 2381 | int value = va_arg(ap, opus_int32); |
| 2382 | if (value<0 || value>100) |
| 2383 | goto bad_arg; |
| 2384 | st->loss_rate = value; |
| 2385 | } |
| 2386 | break; |
| 2387 | case OPUS_SET_VBR_CONSTRAINT_REQUEST: |
| 2388 | { |
| 2389 | opus_int32 value = va_arg(ap, opus_int32); |
| 2390 | st->constrained_vbr = value; |
| 2391 | } |
| 2392 | break; |
| 2393 | case OPUS_SET_VBR_REQUEST: |
| 2394 | { |
| 2395 | opus_int32 value = va_arg(ap, opus_int32); |
| 2396 | st->vbr = value; |
| 2397 | } |
| 2398 | break; |
| 2399 | case OPUS_SET_BITRATE_REQUEST: |
| 2400 | { |
| 2401 | opus_int32 value = va_arg(ap, opus_int32); |
| 2402 | if (value<=500 && value!=OPUS_BITRATE_MAX) |
| 2403 | goto bad_arg; |
| 2404 | value = IMIN(value, 260000*st->channels); |
| 2405 | st->bitrate = value; |
| 2406 | } |
| 2407 | break; |
| 2408 | case CELT_SET_CHANNELS_REQUEST: |
| 2409 | { |
| 2410 | opus_int32 value = va_arg(ap, opus_int32); |
| 2411 | if (value<1 || value>2) |
| 2412 | goto bad_arg; |
| 2413 | st->stream_channels = value; |
| 2414 | } |
| 2415 | break; |
| 2416 | case OPUS_SET_LSB_DEPTH_REQUEST: |
| 2417 | { |
| 2418 | opus_int32 value = va_arg(ap, opus_int32); |
| 2419 | if (value<8 || value>24) |
| 2420 | goto bad_arg; |
| 2421 | st->lsb_depth=value; |
| 2422 | } |
| 2423 | break; |
| 2424 | case OPUS_GET_LSB_DEPTH_REQUEST: |
| 2425 | { |
| 2426 | opus_int32 *value = va_arg(ap, opus_int32*); |
| 2427 | *value=st->lsb_depth; |
| 2428 | } |
| 2429 | break; |
Jean-Marc Valin | 18a380a | 2016-04-20 13:27:06 -0400 | [diff] [blame] | 2430 | case OPUS_SET_PHASE_INVERSION_DISABLED_REQUEST: |
| 2431 | { |
| 2432 | opus_int32 value = va_arg(ap, opus_int32); |
| 2433 | if(value<0 || value>1) |
| 2434 | { |
| 2435 | goto bad_arg; |
| 2436 | } |
| 2437 | st->disable_inv = value; |
| 2438 | } |
| 2439 | break; |
| 2440 | case OPUS_GET_PHASE_INVERSION_DISABLED_REQUEST: |
| 2441 | { |
| 2442 | opus_int32 *value = va_arg(ap, opus_int32*); |
| 2443 | if (!value) |
| 2444 | { |
| 2445 | goto bad_arg; |
| 2446 | } |
| 2447 | *value = st->disable_inv; |
| 2448 | } |
| 2449 | break; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2450 | case OPUS_RESET_STATE: |
| 2451 | { |
| 2452 | int i; |
| 2453 | opus_val16 *oldBandE, *oldLogE, *oldLogE2; |
Jean-Marc Valin | 91f8010 | 2013-12-10 18:38:44 -0500 | [diff] [blame] | 2454 | oldBandE = (opus_val16*)(st->in_mem+st->channels*(st->mode->overlap+COMBFILTER_MAXPERIOD)); |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2455 | oldLogE = oldBandE + st->channels*st->mode->nbEBands; |
| 2456 | oldLogE2 = oldLogE + st->channels*st->mode->nbEBands; |
| 2457 | OPUS_CLEAR((char*)&st->ENCODER_RESET_START, |
| 2458 | opus_custom_encoder_get_size(st->mode, st->channels)- |
| 2459 | ((char*)&st->ENCODER_RESET_START - (char*)st)); |
| 2460 | for (i=0;i<st->channels*st->mode->nbEBands;i++) |
| 2461 | oldLogE[i]=oldLogE2[i]=-QCONST16(28.f,DB_SHIFT); |
| 2462 | st->vbr_offset = 0; |
| 2463 | st->delayedIntra = 1; |
| 2464 | st->spread_decision = SPREAD_NORMAL; |
| 2465 | st->tonal_average = 256; |
| 2466 | st->hf_average = 0; |
| 2467 | st->tapset_decision = 0; |
| 2468 | } |
| 2469 | break; |
| 2470 | #ifdef CUSTOM_MODES |
| 2471 | case CELT_SET_INPUT_CLIPPING_REQUEST: |
| 2472 | { |
| 2473 | opus_int32 value = va_arg(ap, opus_int32); |
| 2474 | st->clip = value; |
| 2475 | } |
| 2476 | break; |
| 2477 | #endif |
| 2478 | case CELT_SET_SIGNALLING_REQUEST: |
| 2479 | { |
| 2480 | opus_int32 value = va_arg(ap, opus_int32); |
| 2481 | st->signalling = value; |
| 2482 | } |
| 2483 | break; |
| 2484 | case CELT_SET_ANALYSIS_REQUEST: |
| 2485 | { |
| 2486 | AnalysisInfo *info = va_arg(ap, AnalysisInfo *); |
| 2487 | if (info) |
| 2488 | OPUS_COPY(&st->analysis, info, 1); |
| 2489 | } |
| 2490 | break; |
Jean-Marc Valin | 61714e9 | 2016-04-23 00:34:53 -0400 | [diff] [blame] | 2491 | case CELT_SET_SILK_INFO_REQUEST: |
| 2492 | { |
| 2493 | SILKInfo *info = va_arg(ap, SILKInfo *); |
| 2494 | if (info) |
| 2495 | OPUS_COPY(&st->silk_info, info, 1); |
| 2496 | } |
| 2497 | break; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2498 | case CELT_GET_MODE_REQUEST: |
| 2499 | { |
| 2500 | const CELTMode ** value = va_arg(ap, const CELTMode**); |
| 2501 | if (value==0) |
| 2502 | goto bad_arg; |
| 2503 | *value=st->mode; |
| 2504 | } |
| 2505 | break; |
| 2506 | case OPUS_GET_FINAL_RANGE_REQUEST: |
| 2507 | { |
| 2508 | opus_uint32 * value = va_arg(ap, opus_uint32 *); |
| 2509 | if (value==0) |
| 2510 | goto bad_arg; |
| 2511 | *value=st->rng; |
| 2512 | } |
| 2513 | break; |
Jean-Marc Valin | b08c4ca | 2013-04-26 16:32:10 -0400 | [diff] [blame] | 2514 | case OPUS_SET_LFE_REQUEST: |
| 2515 | { |
| 2516 | opus_int32 value = va_arg(ap, opus_int32); |
| 2517 | st->lfe = value; |
| 2518 | } |
| 2519 | break; |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 2520 | case OPUS_SET_ENERGY_MASK_REQUEST: |
| 2521 | { |
| 2522 | opus_val16 *value = va_arg(ap, opus_val16*); |
| 2523 | st->energy_mask = value; |
| 2524 | } |
| 2525 | break; |
Jean-Marc Valin | 6906210 | 2012-11-08 09:42:27 -0500 | [diff] [blame] | 2526 | default: |
| 2527 | goto bad_request; |
| 2528 | } |
| 2529 | va_end(ap); |
| 2530 | return OPUS_OK; |
| 2531 | bad_arg: |
| 2532 | va_end(ap); |
| 2533 | return OPUS_BAD_ARG; |
| 2534 | bad_request: |
| 2535 | va_end(ap); |
| 2536 | return OPUS_UNIMPLEMENTED; |
| 2537 | } |