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comparison: media/libopus/silk/float/encode_frame_FLP.c
media/libopus/silk/float/encode_frame_FLP.c
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| -1:000000000000 | 0:354e979e91dc |
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| 1 /*********************************************************************** | |
| 2 Copyright (c) 2006-2011, Skype Limited. All rights reserved. | |
| 3 Redistribution and use in source and binary forms, with or without | |
| 4 modification, are permitted provided that the following conditions | |
| 5 are met: | |
| 6 - Redistributions of source code must retain the above copyright notice, | |
| 7 this list of conditions and the following disclaimer. | |
| 8 - Redistributions in binary form must reproduce the above copyright | |
| 9 notice, this list of conditions and the following disclaimer in the | |
| 10 documentation and/or other materials provided with the distribution. | |
| 11 - Neither the name of Internet Society, IETF or IETF Trust, nor the | |
| 12 names of specific contributors, may be used to endorse or promote | |
| 13 products derived from this software without specific prior written | |
| 14 permission. | |
| 15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 16 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
| 19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 20 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 21 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 22 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 23 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 24 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 25 POSSIBILITY OF SUCH DAMAGE. | |
| 26 ***********************************************************************/ | |
| 27 | |
| 28 #ifdef HAVE_CONFIG_H | |
| 29 #include "config.h" | |
| 30 #endif | |
| 31 | |
| 32 #include "main_FLP.h" | |
| 33 #include "tuning_parameters.h" | |
| 34 | |
| 35 /* Low Bitrate Redundancy (LBRR) encoding. Reuse all parameters but encode with lower bitrate */ | |
| 36 static OPUS_INLINE void silk_LBRR_encode_FLP( | |
| 37 silk_encoder_state_FLP *psEnc, /* I/O Encoder state FLP */ | |
| 38 silk_encoder_control_FLP *psEncCtrl, /* I/O Encoder control FLP */ | |
| 39 const silk_float xfw[], /* I Input signal */ | |
| 40 opus_int condCoding /* I The type of conditional coding used so far for this frame */ | |
| 41 ); | |
| 42 | |
| 43 void silk_encode_do_VAD_FLP( | |
| 44 silk_encoder_state_FLP *psEnc /* I/O Encoder state FLP */ | |
| 45 ) | |
| 46 { | |
| 47 /****************************/ | |
| 48 /* Voice Activity Detection */ | |
| 49 /****************************/ | |
| 50 silk_VAD_GetSA_Q8( &psEnc->sCmn, psEnc->sCmn.inputBuf + 1 ); | |
| 51 | |
| 52 /**************************************************/ | |
| 53 /* Convert speech activity into VAD and DTX flags */ | |
| 54 /**************************************************/ | |
| 55 if( psEnc->sCmn.speech_activity_Q8 < SILK_FIX_CONST( SPEECH_ACTIVITY_DTX_THRES, 8 ) ) { | |
| 56 psEnc->sCmn.indices.signalType = TYPE_NO_VOICE_ACTIVITY; | |
| 57 psEnc->sCmn.noSpeechCounter++; | |
| 58 if( psEnc->sCmn.noSpeechCounter < NB_SPEECH_FRAMES_BEFORE_DTX ) { | |
| 59 psEnc->sCmn.inDTX = 0; | |
| 60 } else if( psEnc->sCmn.noSpeechCounter > MAX_CONSECUTIVE_DTX + NB_SPEECH_FRAMES_BEFORE_DTX ) { | |
| 61 psEnc->sCmn.noSpeechCounter = NB_SPEECH_FRAMES_BEFORE_DTX; | |
| 62 psEnc->sCmn.inDTX = 0; | |
| 63 } | |
| 64 psEnc->sCmn.VAD_flags[ psEnc->sCmn.nFramesEncoded ] = 0; | |
| 65 } else { | |
| 66 psEnc->sCmn.noSpeechCounter = 0; | |
| 67 psEnc->sCmn.inDTX = 0; | |
| 68 psEnc->sCmn.indices.signalType = TYPE_UNVOICED; | |
| 69 psEnc->sCmn.VAD_flags[ psEnc->sCmn.nFramesEncoded ] = 1; | |
| 70 } | |
| 71 } | |
| 72 | |
| 73 /****************/ | |
| 74 /* Encode frame */ | |
| 75 /****************/ | |
| 76 opus_int silk_encode_frame_FLP( | |
| 77 silk_encoder_state_FLP *psEnc, /* I/O Encoder state FLP */ | |
| 78 opus_int32 *pnBytesOut, /* O Number of payload bytes; */ | |
| 79 ec_enc *psRangeEnc, /* I/O compressor data structure */ | |
| 80 opus_int condCoding, /* I The type of conditional coding to use */ | |
| 81 opus_int maxBits, /* I If > 0: maximum number of output bits */ | |
| 82 opus_int useCBR /* I Flag to force constant-bitrate operation */ | |
| 83 ) | |
| 84 { | |
| 85 silk_encoder_control_FLP sEncCtrl; | |
| 86 opus_int i, iter, maxIter, found_upper, found_lower, ret = 0; | |
| 87 silk_float *x_frame, *res_pitch_frame; | |
| 88 silk_float xfw[ MAX_FRAME_LENGTH ]; | |
| 89 silk_float res_pitch[ 2 * MAX_FRAME_LENGTH + LA_PITCH_MAX ]; | |
| 90 ec_enc sRangeEnc_copy, sRangeEnc_copy2; | |
| 91 silk_nsq_state sNSQ_copy, sNSQ_copy2; | |
| 92 opus_int32 seed_copy, nBits, nBits_lower, nBits_upper, gainMult_lower, gainMult_upper; | |
| 93 opus_int32 gainsID, gainsID_lower, gainsID_upper; | |
| 94 opus_int16 gainMult_Q8; | |
| 95 opus_int16 ec_prevLagIndex_copy; | |
| 96 opus_int ec_prevSignalType_copy; | |
| 97 opus_int8 LastGainIndex_copy2; | |
| 98 opus_int32 pGains_Q16[ MAX_NB_SUBFR ]; | |
| 99 opus_uint8 ec_buf_copy[ 1275 ]; | |
| 100 | |
| 101 /* This is totally unnecessary but many compilers (including gcc) are too dumb to realise it */ | |
| 102 LastGainIndex_copy2 = nBits_lower = nBits_upper = gainMult_lower = gainMult_upper = 0; | |
| 103 | |
| 104 psEnc->sCmn.indices.Seed = psEnc->sCmn.frameCounter++ & 3; | |
| 105 | |
| 106 /**************************************************************/ | |
| 107 /* Set up Input Pointers, and insert frame in input buffer */ | |
| 108 /**************************************************************/ | |
| 109 /* pointers aligned with start of frame to encode */ | |
| 110 x_frame = psEnc->x_buf + psEnc->sCmn.ltp_mem_length; /* start of frame to encode */ | |
| 111 res_pitch_frame = res_pitch + psEnc->sCmn.ltp_mem_length; /* start of pitch LPC residual frame */ | |
| 112 | |
| 113 /***************************************/ | |
| 114 /* Ensure smooth bandwidth transitions */ | |
| 115 /***************************************/ | |
| 116 silk_LP_variable_cutoff( &psEnc->sCmn.sLP, psEnc->sCmn.inputBuf + 1, psEnc->sCmn.frame_length ); | |
| 117 | |
| 118 /*******************************************/ | |
| 119 /* Copy new frame to front of input buffer */ | |
| 120 /*******************************************/ | |
| 121 silk_short2float_array( x_frame + LA_SHAPE_MS * psEnc->sCmn.fs_kHz, psEnc->sCmn.inputBuf + 1, psEnc->sCmn.frame_length ); | |
| 122 | |
| 123 /* Add tiny signal to avoid high CPU load from denormalized floating point numbers */ | |
| 124 for( i = 0; i < 8; i++ ) { | |
| 125 x_frame[ LA_SHAPE_MS * psEnc->sCmn.fs_kHz + i * ( psEnc->sCmn.frame_length >> 3 ) ] += ( 1 - ( i & 2 ) ) * 1e-6f; | |
| 126 } | |
| 127 | |
| 128 if( !psEnc->sCmn.prefillFlag ) { | |
| 129 /*****************************************/ | |
| 130 /* Find pitch lags, initial LPC analysis */ | |
| 131 /*****************************************/ | |
| 132 silk_find_pitch_lags_FLP( psEnc, &sEncCtrl, res_pitch, x_frame, psEnc->sCmn.arch ); | |
| 133 | |
| 134 /************************/ | |
| 135 /* Noise shape analysis */ | |
| 136 /************************/ | |
| 137 silk_noise_shape_analysis_FLP( psEnc, &sEncCtrl, res_pitch_frame, x_frame ); | |
| 138 | |
| 139 /***************************************************/ | |
| 140 /* Find linear prediction coefficients (LPC + LTP) */ | |
| 141 /***************************************************/ | |
| 142 silk_find_pred_coefs_FLP( psEnc, &sEncCtrl, res_pitch, x_frame, condCoding ); | |
| 143 | |
| 144 /****************************************/ | |
| 145 /* Process gains */ | |
| 146 /****************************************/ | |
| 147 silk_process_gains_FLP( psEnc, &sEncCtrl, condCoding ); | |
| 148 | |
| 149 /*****************************************/ | |
| 150 /* Prefiltering for noise shaper */ | |
| 151 /*****************************************/ | |
| 152 silk_prefilter_FLP( psEnc, &sEncCtrl, xfw, x_frame ); | |
| 153 | |
| 154 /****************************************/ | |
| 155 /* Low Bitrate Redundant Encoding */ | |
| 156 /****************************************/ | |
| 157 silk_LBRR_encode_FLP( psEnc, &sEncCtrl, xfw, condCoding ); | |
| 158 | |
| 159 /* Loop over quantizer and entroy coding to control bitrate */ | |
| 160 maxIter = 6; | |
| 161 gainMult_Q8 = SILK_FIX_CONST( 1, 8 ); | |
| 162 found_lower = 0; | |
| 163 found_upper = 0; | |
| 164 gainsID = silk_gains_ID( psEnc->sCmn.indices.GainsIndices, psEnc->sCmn.nb_subfr ); | |
| 165 gainsID_lower = -1; | |
| 166 gainsID_upper = -1; | |
| 167 /* Copy part of the input state */ | |
| 168 silk_memcpy( &sRangeEnc_copy, psRangeEnc, sizeof( ec_enc ) ); | |
| 169 silk_memcpy( &sNSQ_copy, &psEnc->sCmn.sNSQ, sizeof( silk_nsq_state ) ); | |
| 170 seed_copy = psEnc->sCmn.indices.Seed; | |
| 171 ec_prevLagIndex_copy = psEnc->sCmn.ec_prevLagIndex; | |
| 172 ec_prevSignalType_copy = psEnc->sCmn.ec_prevSignalType; | |
| 173 for( iter = 0; ; iter++ ) { | |
| 174 if( gainsID == gainsID_lower ) { | |
| 175 nBits = nBits_lower; | |
| 176 } else if( gainsID == gainsID_upper ) { | |
| 177 nBits = nBits_upper; | |
| 178 } else { | |
| 179 /* Restore part of the input state */ | |
| 180 if( iter > 0 ) { | |
| 181 silk_memcpy( psRangeEnc, &sRangeEnc_copy, sizeof( ec_enc ) ); | |
| 182 silk_memcpy( &psEnc->sCmn.sNSQ, &sNSQ_copy, sizeof( silk_nsq_state ) ); | |
| 183 psEnc->sCmn.indices.Seed = seed_copy; | |
| 184 psEnc->sCmn.ec_prevLagIndex = ec_prevLagIndex_copy; | |
| 185 psEnc->sCmn.ec_prevSignalType = ec_prevSignalType_copy; | |
| 186 } | |
| 187 | |
| 188 /*****************************************/ | |
| 189 /* Noise shaping quantization */ | |
| 190 /*****************************************/ | |
| 191 silk_NSQ_wrapper_FLP( psEnc, &sEncCtrl, &psEnc->sCmn.indices, &psEnc->sCmn.sNSQ, psEnc->sCmn.pulses, xfw ); | |
| 192 | |
| 193 /****************************************/ | |
| 194 /* Encode Parameters */ | |
| 195 /****************************************/ | |
| 196 silk_encode_indices( &psEnc->sCmn, psRangeEnc, psEnc->sCmn.nFramesEncoded, 0, condCoding ); | |
| 197 | |
| 198 /****************************************/ | |
| 199 /* Encode Excitation Signal */ | |
| 200 /****************************************/ | |
| 201 silk_encode_pulses( psRangeEnc, psEnc->sCmn.indices.signalType, psEnc->sCmn.indices.quantOffsetType, | |
| 202 psEnc->sCmn.pulses, psEnc->sCmn.frame_length ); | |
| 203 | |
| 204 nBits = ec_tell( psRangeEnc ); | |
| 205 | |
| 206 if( useCBR == 0 && iter == 0 && nBits <= maxBits ) { | |
| 207 break; | |
| 208 } | |
| 209 } | |
| 210 | |
| 211 if( iter == maxIter ) { | |
| 212 if( found_lower && ( gainsID == gainsID_lower || nBits > maxBits ) ) { | |
| 213 /* Restore output state from earlier iteration that did meet the bitrate budget */ | |
| 214 silk_memcpy( psRangeEnc, &sRangeEnc_copy2, sizeof( ec_enc ) ); | |
| 215 silk_assert( sRangeEnc_copy2.offs <= 1275 ); | |
| 216 silk_memcpy( psRangeEnc->buf, ec_buf_copy, sRangeEnc_copy2.offs ); | |
| 217 silk_memcpy( &psEnc->sCmn.sNSQ, &sNSQ_copy2, sizeof( silk_nsq_state ) ); | |
| 218 psEnc->sShape.LastGainIndex = LastGainIndex_copy2; | |
| 219 } | |
| 220 break; | |
| 221 } | |
| 222 | |
| 223 if( nBits > maxBits ) { | |
| 224 if( found_lower == 0 && iter >= 2 ) { | |
| 225 /* Adjust the quantizer's rate/distortion tradeoff and discard previous "upper" results */ | |
| 226 sEncCtrl.Lambda *= 1.5f; | |
| 227 found_upper = 0; | |
| 228 gainsID_upper = -1; | |
| 229 } else { | |
| 230 found_upper = 1; | |
| 231 nBits_upper = nBits; | |
| 232 gainMult_upper = gainMult_Q8; | |
| 233 gainsID_upper = gainsID; | |
| 234 } | |
| 235 } else if( nBits < maxBits - 5 ) { | |
| 236 found_lower = 1; | |
| 237 nBits_lower = nBits; | |
| 238 gainMult_lower = gainMult_Q8; | |
| 239 if( gainsID != gainsID_lower ) { | |
| 240 gainsID_lower = gainsID; | |
| 241 /* Copy part of the output state */ | |
| 242 silk_memcpy( &sRangeEnc_copy2, psRangeEnc, sizeof( ec_enc ) ); | |
| 243 silk_assert( psRangeEnc->offs <= 1275 ); | |
| 244 silk_memcpy( ec_buf_copy, psRangeEnc->buf, psRangeEnc->offs ); | |
| 245 silk_memcpy( &sNSQ_copy2, &psEnc->sCmn.sNSQ, sizeof( silk_nsq_state ) ); | |
| 246 LastGainIndex_copy2 = psEnc->sShape.LastGainIndex; | |
| 247 } | |
| 248 } else { | |
| 249 /* Within 5 bits of budget: close enough */ | |
| 250 break; | |
| 251 } | |
| 252 | |
| 253 if( ( found_lower & found_upper ) == 0 ) { | |
| 254 /* Adjust gain according to high-rate rate/distortion curve */ | |
| 255 opus_int32 gain_factor_Q16; | |
| 256 gain_factor_Q16 = silk_log2lin( silk_LSHIFT( nBits - maxBits, 7 ) / psEnc->sCmn.frame_length + SILK_FIX_CONST( 16, 7 ) ); | |
| 257 gain_factor_Q16 = silk_min_32( gain_factor_Q16, SILK_FIX_CONST( 2, 16 ) ); | |
| 258 if( nBits > maxBits ) { | |
| 259 gain_factor_Q16 = silk_max_32( gain_factor_Q16, SILK_FIX_CONST( 1.3, 16 ) ); | |
| 260 } | |
| 261 gainMult_Q8 = silk_SMULWB( gain_factor_Q16, gainMult_Q8 ); | |
| 262 } else { | |
| 263 /* Adjust gain by interpolating */ | |
| 264 gainMult_Q8 = gainMult_lower + ( ( gainMult_upper - gainMult_lower ) * ( maxBits - nBits_lower ) ) / ( nBits_upper - nBits_lower ); | |
| 265 /* New gain multplier must be between 25% and 75% of old range (note that gainMult_upper < gainMult_lower) */ | |
| 266 if( gainMult_Q8 > silk_ADD_RSHIFT32( gainMult_lower, gainMult_upper - gainMult_lower, 2 ) ) { | |
| 267 gainMult_Q8 = silk_ADD_RSHIFT32( gainMult_lower, gainMult_upper - gainMult_lower, 2 ); | |
| 268 } else | |
| 269 if( gainMult_Q8 < silk_SUB_RSHIFT32( gainMult_upper, gainMult_upper - gainMult_lower, 2 ) ) { | |
| 270 gainMult_Q8 = silk_SUB_RSHIFT32( gainMult_upper, gainMult_upper - gainMult_lower, 2 ); | |
| 271 } | |
| 272 } | |
| 273 | |
| 274 for( i = 0; i < psEnc->sCmn.nb_subfr; i++ ) { | |
| 275 pGains_Q16[ i ] = silk_LSHIFT_SAT32( silk_SMULWB( sEncCtrl.GainsUnq_Q16[ i ], gainMult_Q8 ), 8 ); | |
| 276 } | |
| 277 | |
| 278 /* Quantize gains */ | |
| 279 psEnc->sShape.LastGainIndex = sEncCtrl.lastGainIndexPrev; | |
| 280 silk_gains_quant( psEnc->sCmn.indices.GainsIndices, pGains_Q16, | |
| 281 &psEnc->sShape.LastGainIndex, condCoding == CODE_CONDITIONALLY, psEnc->sCmn.nb_subfr ); | |
| 282 | |
| 283 /* Unique identifier of gains vector */ | |
| 284 gainsID = silk_gains_ID( psEnc->sCmn.indices.GainsIndices, psEnc->sCmn.nb_subfr ); | |
| 285 | |
| 286 /* Overwrite unquantized gains with quantized gains and convert back to Q0 from Q16 */ | |
| 287 for( i = 0; i < psEnc->sCmn.nb_subfr; i++ ) { | |
| 288 sEncCtrl.Gains[ i ] = pGains_Q16[ i ] / 65536.0f; | |
| 289 } | |
| 290 } | |
| 291 } | |
| 292 | |
| 293 /* Update input buffer */ | |
| 294 silk_memmove( psEnc->x_buf, &psEnc->x_buf[ psEnc->sCmn.frame_length ], | |
| 295 ( psEnc->sCmn.ltp_mem_length + LA_SHAPE_MS * psEnc->sCmn.fs_kHz ) * sizeof( silk_float ) ); | |
| 296 | |
| 297 /* Exit without entropy coding */ | |
| 298 if( psEnc->sCmn.prefillFlag ) { | |
| 299 /* No payload */ | |
| 300 *pnBytesOut = 0; | |
| 301 return ret; | |
| 302 } | |
| 303 | |
| 304 /* Parameters needed for next frame */ | |
| 305 psEnc->sCmn.prevLag = sEncCtrl.pitchL[ psEnc->sCmn.nb_subfr - 1 ]; | |
| 306 psEnc->sCmn.prevSignalType = psEnc->sCmn.indices.signalType; | |
| 307 | |
| 308 /****************************************/ | |
| 309 /* Finalize payload */ | |
| 310 /****************************************/ | |
| 311 psEnc->sCmn.first_frame_after_reset = 0; | |
| 312 /* Payload size */ | |
| 313 *pnBytesOut = silk_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 ); | |
| 314 | |
| 315 return ret; | |
| 316 } | |
| 317 | |
| 318 /* Low-Bitrate Redundancy (LBRR) encoding. Reuse all parameters but encode excitation at lower bitrate */ | |
| 319 static OPUS_INLINE void silk_LBRR_encode_FLP( | |
| 320 silk_encoder_state_FLP *psEnc, /* I/O Encoder state FLP */ | |
| 321 silk_encoder_control_FLP *psEncCtrl, /* I/O Encoder control FLP */ | |
| 322 const silk_float xfw[], /* I Input signal */ | |
| 323 opus_int condCoding /* I The type of conditional coding used so far for this frame */ | |
| 324 ) | |
| 325 { | |
| 326 opus_int k; | |
| 327 opus_int32 Gains_Q16[ MAX_NB_SUBFR ]; | |
| 328 silk_float TempGains[ MAX_NB_SUBFR ]; | |
| 329 SideInfoIndices *psIndices_LBRR = &psEnc->sCmn.indices_LBRR[ psEnc->sCmn.nFramesEncoded ]; | |
| 330 silk_nsq_state sNSQ_LBRR; | |
| 331 | |
| 332 /*******************************************/ | |
| 333 /* Control use of inband LBRR */ | |
| 334 /*******************************************/ | |
| 335 if( psEnc->sCmn.LBRR_enabled && psEnc->sCmn.speech_activity_Q8 > SILK_FIX_CONST( LBRR_SPEECH_ACTIVITY_THRES, 8 ) ) { | |
| 336 psEnc->sCmn.LBRR_flags[ psEnc->sCmn.nFramesEncoded ] = 1; | |
| 337 | |
| 338 /* Copy noise shaping quantizer state and quantization indices from regular encoding */ | |
| 339 silk_memcpy( &sNSQ_LBRR, &psEnc->sCmn.sNSQ, sizeof( silk_nsq_state ) ); | |
| 340 silk_memcpy( psIndices_LBRR, &psEnc->sCmn.indices, sizeof( SideInfoIndices ) ); | |
| 341 | |
| 342 /* Save original gains */ | |
| 343 silk_memcpy( TempGains, psEncCtrl->Gains, psEnc->sCmn.nb_subfr * sizeof( silk_float ) ); | |
| 344 | |
| 345 if( psEnc->sCmn.nFramesEncoded == 0 || psEnc->sCmn.LBRR_flags[ psEnc->sCmn.nFramesEncoded - 1 ] == 0 ) { | |
| 346 /* First frame in packet or previous frame not LBRR coded */ | |
| 347 psEnc->sCmn.LBRRprevLastGainIndex = psEnc->sShape.LastGainIndex; | |
| 348 | |
| 349 /* Increase Gains to get target LBRR rate */ | |
| 350 psIndices_LBRR->GainsIndices[ 0 ] += psEnc->sCmn.LBRR_GainIncreases; | |
| 351 psIndices_LBRR->GainsIndices[ 0 ] = silk_min_int( psIndices_LBRR->GainsIndices[ 0 ], N_LEVELS_QGAIN - 1 ); | |
| 352 } | |
| 353 | |
| 354 /* Decode to get gains in sync with decoder */ | |
| 355 silk_gains_dequant( Gains_Q16, psIndices_LBRR->GainsIndices, | |
| 356 &psEnc->sCmn.LBRRprevLastGainIndex, condCoding == CODE_CONDITIONALLY, psEnc->sCmn.nb_subfr ); | |
| 357 | |
| 358 /* Overwrite unquantized gains with quantized gains and convert back to Q0 from Q16 */ | |
| 359 for( k = 0; k < psEnc->sCmn.nb_subfr; k++ ) { | |
| 360 psEncCtrl->Gains[ k ] = Gains_Q16[ k ] * ( 1.0f / 65536.0f ); | |
| 361 } | |
| 362 | |
| 363 /*****************************************/ | |
| 364 /* Noise shaping quantization */ | |
| 365 /*****************************************/ | |
| 366 silk_NSQ_wrapper_FLP( psEnc, psEncCtrl, psIndices_LBRR, &sNSQ_LBRR, | |
| 367 psEnc->sCmn.pulses_LBRR[ psEnc->sCmn.nFramesEncoded ], xfw ); | |
| 368 | |
| 369 /* Restore original gains */ | |
| 370 silk_memcpy( psEncCtrl->Gains, TempGains, psEnc->sCmn.nb_subfr * sizeof( silk_float ) ); | |
| 371 } | |
| 372 } |
