Line data Source code
1 : /*====================================================================================
2 : EVS Codec 3GPP TS26.452 Aug 12, 2021. Version 16.3.0
3 : ====================================================================================*/
4 :
5 : #include <stdint.h>
6 : #include "options.h" /* Compilation switches */
7 : #include "rom_dec.h" /* Static table prototypes */
8 : #include "rom_com.h" /* Static table prototypes */
9 : #include "prot_fx.h"
10 : #include "basop_util.h"
11 : #include "ivas_prot_fx.h"
12 :
13 : /*---------------------------------------------------------------------*
14 : * Local constants
15 : *---------------------------------------------------------------------*/
16 :
17 : #define FEC_MAX 512
18 : #define FEC_NB_PULSE_MAX 20
19 : #define FEC_FFT_MAX_SIZE 512
20 : #define FEC_DCIM_FILT_SIZE_MAX 60
21 :
22 : #define ENV_STAB_DEC_THR 16384 /* Q15 st->env_stab based threshold for hq-ecu technology decision */
23 :
24 : #define PHASE_DITH_fx 25736 /* 2*pi in Q12 */
25 : #define DELTA_CORR 6 /* Tuning parameter - defining range for phase correction around peak */
26 : #define THRESH_TR_DB_FX 10
27 : #define THRESH_TR_LIN_BY2_FX ( 10 / 2 ) /* 10.0^(THRESH_TR_DB_FX/10.0)/2. Divided by 2 to facilitate fixed-point implementation. */
28 : #define MAX_INCREASE_GRPPOW_FX 0 /* max. amplification in case of transients (in dB scale) */
29 : #define MAX_INCREASE_GRPPOW_LIN_FX 32767 /* in Q15-- 10.0^(MAX_INCREASE_GRPPOW_FX/10.0) (in linear scale) */
30 :
31 : #define PHASE_DITH_SCALE_SHIFT 16 /* The number of bit shift equivalent to multiply by PHASE_DITH_SCALE */
32 :
33 : #define BURST_PHDITH_THRESH ( 4 - 1 ) /* speech start phase dither with <burst_phdith_thresh> losses in a row */
34 : #define BURST_PHDITH_RAMPUP_LEN 2 /* speech ramp up degree of phase dither over a length of <burst_phdith_rampup_len> frames */
35 : #define BURST_ATT_THRESH ( 3 - 1 ) /* speech start attenuate with <burst_att_thresh> losses in a row */
36 : #define ATT_PER_FRAME 4 /* speech attenuation in dB */
37 : #define BETA_MUTE_THR 10 /* time threshold to start beta-noise attenuation */
38 :
39 : #define LGW32K 7
40 : #define LGW16K 6
41 : #define LGW48K LGW32K + 1 /* Use the same frequency groups as for SWB + 1 */
42 :
43 : #define LTRANALOG32K 8
44 : #define LTRANALOG16K 7
45 : #define PFIND_SENS_FX 31785 /* 0.97 in Q15 */
46 : #define CMPLMNT_PFIND_SENS_FX 983 /* (1.0 - pfind_sen) in Q15 */
47 :
48 : #define DELTA_CORR_F0_INT 2 /* Constant controls the bin range where Jacobsen is used */
49 : #define L_PROT_NS 32000000L /* Prototype frame length in nanoseconds (32 ms) */
50 : #define PH_ECU_CORR_LIMIT_Q15 27853 /* 0.85 in Q15 */
51 : #define PH_ECU_N_LIMIT 56 /* fec_alg analysis frame limit for IVAS Phase ECU activation */
52 : #define CMPLMNT_ST_PFIND_SENS_FX 2293 /* (1.0 - st_pfind_sen) in Q15 */
53 :
54 : #define FEC_HQ_ECU_POINT5 ( 0x4000 ) /* 0.5 in Q15. Prefix with FEC_HQ namespace to avoid naming conflict. */
55 : #define FEC_HQ_ECU_ROOT2 ( 0x5a83 ) /* sqrt(2) in Q14 */
56 : #define FEC_HQ_HAMM_A0 17695 /* 0.54 in Q15 */
57 : #define FEC_HQ_HAMM_A1 15073 /* 0.46 in Q15 */
58 : #define FEC_HQ_WIN_A0 FEC_HQ_HAMM_A0
59 : #define FEC_HQ_WIN_A1 FEC_HQ_HAMM_A1
60 :
61 : static Word16 sqrt2ndOrder( const Word16 );
62 :
63 : static void windowing( const Word16 *, Word16 *, const Word16 *, const Word16, const Word16 );
64 : static void windowing_ROM_optimized( const Word16 *, Word16 *, const Word16, const Word16, const Word16 );
65 : static void fft_spec2_fx( const Word16[], Word32[], const Word16 );
66 : static void trans_ana_fx( const Word16 *, Word16 *, Word16 *, Word16 *, const Word16, const Word16, const Word16, const Word16, Word16 *, Word16 *, Word16 *, Word16 * );
67 : static void peakfinder_fx( const Word16 *, const Word16, Word16 *, Word16 *, const Word16 );
68 : static Word16 imax_fx( const Word16 *, const Word16 );
69 : static void spec_ana_fx( const Word16 *prevsynth, Word16 *plocs, Word32 *plocsi, Word16 *num_plocs, Word16 *X_sav, const Word16 output_frame, const Word16 bwidth_fx, Word16 *Q );
70 : static void subst_spec_fx( const Word16 *, const Word32 *, Word16 *, const Word16, Word16 *, const Word16 *, const Word16, const Word16 *, const Word16, Word16 *, const Word16 *, const Word16 *, Word16, const Word16 * );
71 : static Word16 rand_phase_fx( const Word16 seed, Word16 *sin_F, Word16 *cos_F );
72 :
73 : /*------------------------------------------------------------------*
74 : * rand_phase()
75 : *
76 : * randomized phase in form of sin and cos components
77 : *------------------------------------------------------------------*/
78 115272 : static Word16 rand_phase_fx( const Word16 seed, Word16 *sin_F /*Q15*/, Word16 *cos_F /*Q15*/ )
79 : {
80 115272 : const Word16 *sincos = sincos_t_ext_fx + 128; // Q15
81 115272 : Word16 seed2 = own_random2_fx( seed );
82 115272 : Word16 seed2_shift = shr( seed2, 8 );
83 :
84 115272 : *sin_F = negate( *( sincos + seed2_shift ) ); // Q15
85 115272 : move16();
86 115272 : if ( s_and( seed2, 0x40 ) != 0 )
87 : {
88 57586 : *sin_F = *( sincos + seed2_shift );
89 57586 : move16();
90 : }
91 :
92 115272 : *cos_F = negate( *( sincos - seed2_shift ) ); // Q15
93 115272 : move16();
94 115272 : if ( s_and( seed2, 0x80 ) != 0 )
95 : {
96 57665 : *cos_F = *( sincos - seed2_shift );
97 57665 : move16();
98 : }
99 :
100 115272 : return seed2;
101 : }
102 :
103 : /*! r: The location, relative to the middle of the 3 given data point, of the maximum. (Q15)*/
104 886 : static Word16 ivas_imax2_jacobsen_mag_fx(
105 : const Word16 *y_re, /* i : The 3 given data points. real part order -1 0 1 Qx */
106 : const Word16 *y_im /* i : The 3 given data points. imag part order 1 0 -1 (from FFT) Qx */
107 : )
108 : {
109 : Word16 posi; // Q15
110 : const Word16 *pY;
111 : Word16 y_m1_re, y_0_re, y_p1_re;
112 : Word16 y_m1_im, y_0_im, y_p1_im;
113 : Word32 N_re, N_im;
114 : Word32 D_re, D_im;
115 : Word16 tmp, tmp_e;
116 : Word32 numer, denom;
117 : Word64 tmp_64_n, tmp_64_d;
118 :
119 : /* Jacobsen estimates peak offset relative y_0 using
120 : * X_m1 - X_p1
121 : * d = REAL ( ------------------- ) * c_jacob
122 : * 2*X_0 - X_m1 -Xp1
123 : *
124 : * Where c_jacob is a window dependent constant
125 : */
126 : #define C_JACOB_FX 18765 /* % assume 0.1875 hammrect window 'symmetric' */ /*Q14*/
127 :
128 : /* Get the bin parameters into variables */
129 886 : pY = y_re;
130 886 : y_m1_re = *pY++;
131 886 : move16();
132 886 : y_0_re = *pY++;
133 886 : move16();
134 886 : y_p1_re = *pY++;
135 886 : move16();
136 :
137 : /* Same for imaginary parts - note reverse order from FFT */
138 886 : pY = y_im;
139 886 : y_p1_im = *pY++;
140 886 : move16();
141 886 : y_0_im = *pY++;
142 886 : move16();
143 886 : y_m1_im = *pY++;
144 886 : move16();
145 :
146 : /* prepare numerator real and imaginary parts*/
147 886 : N_re = L_sub( y_m1_re, y_p1_re );
148 886 : N_im = L_sub( y_m1_im, y_p1_im );
149 :
150 : /* prepare denominator real and imaginary parts */
151 :
152 886 : D_re = L_sub( L_sub( L_shl( y_0_re, 1 ), y_m1_re ), y_p1_re );
153 886 : D_im = L_sub( L_sub( L_shl( y_0_im, 1 ), y_m1_im ), y_p1_im );
154 :
155 : /* REAL part of complex division */
156 886 : tmp_64_n = W_mac_32_32( W_mult_32_32( N_re, D_re ), N_im, D_im );
157 886 : tmp_64_d = W_mac_32_32( W_mult_32_32( D_re, D_re ), D_im, D_im );
158 886 : tmp_e = s_min( W_norm( tmp_64_n ), W_norm( tmp_64_d ) );
159 886 : numer = W_extract_h( W_shl( tmp_64_n, tmp_e ) );
160 886 : denom = W_extract_h( W_shl( tmp_64_d, tmp_e ) );
161 :
162 886 : test();
163 886 : IF( numer != 0 && denom != 0 )
164 : {
165 886 : tmp = BASOP_Util_Divide3232_Scale( numer, denom, &tmp_e );
166 886 : tmp = shl_sat( tmp, tmp_e ); // Q15
167 886 : posi = shl_sat( mult_r( tmp, C_JACOB_FX ), Q1 ); // Q15
168 : }
169 : ELSE
170 : {
171 0 : posi = 0; /* flat top, division is not possible choose center freq */
172 0 : move16();
173 : }
174 :
175 886 : return posi;
176 : }
177 :
178 : /*-----------------------------------------------------------------------------
179 : * fft_spec2_fx()
180 : *
181 : * Square magnitude of fft spectrum
182 : *----------------------------------------------------------------------------*/
183 162 : static void fft_spec2_fx(
184 : const Word16 x[], /* i : Input vector: complex spectrum Q0*/
185 : Word32 xMagSq[], /* o : Magnitude square spectrum Q0*/
186 : const Word16 N /* i : Input vector length */
187 : )
188 : {
189 : Word16 i, l;
190 : const Word16 *pRe, *pIm;
191 : Word32 *pMagSq, acc;
192 :
193 : /* Magnitude at 0. */
194 162 : pMagSq = &xMagSq[0];
195 162 : pRe = &x[0];
196 162 : *pMagSq++ = L_mult0( *pRe, *pRe );
197 162 : move32();
198 162 : pRe++; /* Non-fractional multiply gives subsequent group power accumulation a bit headroom. */
199 :
200 : /* From 1 to (N/2 - 1). */
201 162 : l = sub( shr( N, 1 ), 1 ); /* N/2 - 1. */
202 162 : pIm = &x[N];
203 162 : pIm--;
204 51072 : FOR( i = 0; i < l; i++ )
205 : {
206 50910 : acc = L_mult0( *pRe, *pRe );
207 50910 : pRe++; /* Non-fractional mode multiply. */
208 50910 : *pMagSq++ = L_mac0( acc, *pIm, *pIm );
209 50910 : pIm--;
210 50910 : move32();
211 : }
212 :
213 : /* The magnitude square at N/2 */
214 162 : *pMagSq = L_mult0( *pRe, *pRe );
215 162 : move32();
216 162 : return;
217 : }
218 :
219 : /*-----------------------------------------------------------------------------
220 : * trans_ana_fx()
221 : *
222 : * Transient analysis
223 : *----------------------------------------------------------------------------*/
224 132 : static void trans_ana_fx(
225 : const Word16 *xfp, /* i : Input signal Q0 */
226 : Word16 *mag_chg, /* o : Magnitude modification Q15 */
227 : Word16 *ph_dith, /* o : Phase dither, 2*PI is not included (Q15, i.e., between 0.0 and 1.0) */
228 : Word16 *mag_chg_1st, /* i/o: per band magnitude modifier for transients Q15 */
229 : const Word16 output_frame, /* i : Frame length */
230 : const Word16 time_offs, /* i : Time offset (integral multiple of output_frame) */
231 : const Word16 est_mus_content, /* i : 0.0=speech_like ... 1.0=Music (==st->env_stab ) */
232 : const Word16 last_fec, /* i : signal that previous frame was concealed with fec_alg */
233 : Word16 *alpha, /* o : Magnitude modification factors for fade to average */
234 : Word16 *beta, /* o : Magnitude modification factors for fade to average */
235 : Word16 *beta_mute, /* o : Factor for long-term mute Q15 */
236 : Word16 *Xavg /* o : Frequency group average gain to fade to */
237 : )
238 : {
239 : const Word16 *w_hamm, *pFftTbl;
240 : Word16 att_val, attDegreeFrames;
241 : Word16 xfp_left[L_TRANA48k], xfp_right[L_TRANA48k];
242 : Word32 magSqLeft[L_TRANA48k / 2 + 1], magSqRight[L_TRANA48k / 2 + 1];
243 : Word32 *pLeft, *pRight, *pGrPowLeft, *pGrPowRight;
244 : Word32 gr_pow_left[LGW_MAX], gr_pow_right[LGW_MAX];
245 : const Word16 *pXfp, *pGw;
246 : Word16 Ltrana, Ltrana_2, Lprot, three4thLength, LtranaLogMinus1, Lgw, i, k, l, burst_len;
247 : Word16 man, expo;
248 132 : Word16 att_always = 0; /* fixed attenuation per frequency group if set to 1 */
249 : Word16 oneOverFrame, roundEstMusContent, tmp16, headroom, lowerEdge;
250 132 : Word16 burst_phdith_thresh = BURST_PHDITH_THRESH; /*speech settings */
251 132 : Word16 burst_att_thresh = BURST_ATT_THRESH;
252 132 : Word16 att_per_frame = ATT_PER_FRAME;
253 132 : Word16 burst_phdith_rampup_len = BURST_PHDITH_RAMPUP_LEN;
254 : Word16 tr_dec[LGW_MAX];
255 : UWord16 lsb;
256 : Word32 acc;
257 :
258 132 : Lgw = 0;
259 132 : move16();
260 132 : LtranaLogMinus1 = 0;
261 132 : move16();
262 :
263 132 : move16(); // att_always
264 132 : move16(); // burst_phdith_thresh
265 132 : move16(); // burst_att_thresh
266 132 : move16(); // att_per_frame
267 132 : move16(); // burst_phdith_rampup_len
268 :
269 132 : pFftTbl = NULL;
270 :
271 : /* Initialisation to prevent warnings */
272 132 : oneOverFrame = 102; /* 1/320 in Q15 */
273 132 : move16();
274 132 : w_hamm = w_hamm16k_2_fx;
275 132 : move16();
276 132 : Lprot = 512;
277 132 : move16();
278 :
279 : /* check burst error */
280 132 : IF( EQ_16( output_frame, L_FRAME48k ) ) /* output_frame = (sampling frequency)/50 */
281 : {
282 103 : oneOverFrame = 34; /* 1/960 in Q15 */
283 103 : move16();
284 103 : w_hamm = w_hamm48k_2_fx;
285 103 : move16();
286 103 : Lgw = LGW48K;
287 103 : move16();
288 103 : Lprot = 1536; /* (2*output_frame)*1024/1280; */
289 103 : move16();
290 : }
291 29 : ELSE IF( EQ_16( output_frame, L_FRAME32k ) )
292 : {
293 29 : oneOverFrame = 51; /* 1/640 in Q15 */
294 29 : move16();
295 29 : w_hamm = w_hamm32k_2_fx;
296 29 : Lgw = LGW32K;
297 29 : move16();
298 29 : Lprot = 1024;
299 29 : move16();
300 29 : pFftTbl = FFT_W128; /* Table for 256 real input radix-2 FFT */
301 29 : LtranaLogMinus1 = LTRANALOG32K - 1;
302 29 : move16();
303 : }
304 : ELSE
305 : {
306 0 : oneOverFrame = 102; /* 1/320 in Q15 */
307 0 : move16();
308 0 : w_hamm = w_hamm16k_2_fx;
309 0 : Lgw = LGW16K;
310 0 : move16();
311 0 : Lprot = 512;
312 0 : move16();
313 0 : pFftTbl = FFT_W64; /* Table for 128 real input radix-2 FFT */
314 0 : LtranaLogMinus1 = LTRANALOG16K - 1;
315 0 : move16();
316 : }
317 132 : burst_len = add( mult_r( time_offs, oneOverFrame ), 1 );
318 :
319 132 : *ph_dith = 0;
320 132 : move16(); /* typical pattern is 2*pi*[0 0 .25 .50 .75 1.0 1.0 1.0 ..] */
321 :
322 132 : IF( GE_16( output_frame, L_FRAME32k ) ) /*currently est_mus_content only calculated for SWB and FB */
323 : {
324 132 : roundEstMusContent = 0;
325 132 : move16();
326 132 : if ( GE_16( est_mus_content, FEC_HQ_ECU_POINT5 ) ) /* est_mus_content is in [0.0, 1.0]. */
327 : {
328 131 : roundEstMusContent = 1;
329 131 : move16();
330 : }
331 :
332 : /* softly shift attenuation just a bit later for estimated "stable" music_content */
333 132 : burst_phdith_thresh = add( BURST_PHDITH_THRESH, roundEstMusContent );
334 132 : burst_att_thresh = add( BURST_ATT_THRESH, roundEstMusContent );
335 132 : att_per_frame = sub( ATT_PER_FRAME, roundEstMusContent ); /* only slighty less att for music */
336 : }
337 : ELSE
338 : {
339 : /* lock to music-like stable envelope setting for now */
340 0 : burst_phdith_thresh = add( BURST_PHDITH_THRESH, 1 ); /* in Q0 */
341 0 : burst_att_thresh = add( BURST_ATT_THRESH, 1 ); /* in Q0 */
342 0 : att_per_frame = sub( ATT_PER_FRAME, 1 ); /* in Q0 */
343 : }
344 :
345 132 : IF( GT_16( burst_len, burst_phdith_thresh ) )
346 : {
347 : /* increase degree of dither */
348 : #if BURST_PHDITH_RAMPUP_LEN != 2
349 : #error The implementation of phase_dith=min(1.0, (burst_len - burst_phdith_thresh)/burst_phdith_rampup_len)) is incorrect
350 : #endif
351 72 : *ph_dith = 32767; /* 1.0 in Q15. N.B. 2*PI is not included. */
352 72 : move16();
353 72 : tmp16 = sub( burst_len, burst_phdith_thresh );
354 72 : if ( LT_16( tmp16, burst_phdith_rampup_len ) )
355 : {
356 2 : *ph_dith = 16384; /* 0.5 in Q15. N.B. 2*PI is not included. */
357 2 : move16();
358 : }
359 : }
360 :
361 132 : attDegreeFrames = 0;
362 132 : move16();
363 132 : IF( GT_16( burst_len, burst_att_thresh ) )
364 : {
365 74 : att_always = 1;
366 74 : move16();
367 : /* increase degree of attenuation */
368 :
369 : /* N.B. To facilitate the subsequent 10^(-att_degree/20) implementation
370 : * so as to use direct table-lookup,
371 : * (burstLen - burst_att_thresh) is NOT multiplied by "att_per_frame". */
372 74 : attDegreeFrames = sub( burst_len, burst_att_thresh ); /* Not multiplied by att_per_frqme! */
373 : /* Furthermore, in order to minimize the size of the lookup-table required to
374 : * implement 10^(-att_degree/10), hard limit attDegreeFrames to (30% of 50)=15.
375 : * If attDegreeFrames is greater than 15, it means there are more than 15 successive
376 : * bad frames. In this case, no matter what to do, the sound quality will be bad.
377 : */
378 74 : if ( GT_16( attDegreeFrames, OFF_FRAMES_LIMIT ) )
379 : {
380 14 : attDegreeFrames = OFF_FRAMES_LIMIT; /* Hard limit the no. of frames */
381 14 : move16();
382 : }
383 : }
384 :
385 132 : Ltrana = shr( Lprot, 2 );
386 132 : Ltrana_2 = shr( Ltrana, 1 );
387 :
388 132 : test();
389 132 : test();
390 132 : IF( LE_16( burst_len, 1 ) || ( EQ_16( burst_len, 2 ) && last_fec != 0 ) )
391 : {
392 :
393 54 : set16_fx( alpha, 32767, LGW_MAX );
394 54 : set16_fx( beta, 0, LGW_MAX );
395 54 : *beta_mute = BETA_MUTE_FAC_INI;
396 54 : move16();
397 :
398 : /* Apply Hamming window */
399 54 : windowing( xfp, xfp_left, w_hamm, 0, Ltrana_2 ); /* 1st quarter */
400 54 : three4thLength = sub( Lprot, Ltrana );
401 54 : pXfp = xfp + three4thLength;
402 54 : windowing( pXfp, xfp_right, w_hamm, 0, Ltrana_2 ); /* 4th quarter */
403 :
404 : /* spectrum */
405 54 : IF( EQ_16( output_frame, L_FRAME48k ) )
406 : {
407 25 : fft3_fx( xfp_left, xfp_left, Ltrana );
408 25 : fft3_fx( xfp_right, xfp_right, Ltrana );
409 : }
410 : ELSE
411 : {
412 29 : r_fft_fx_lc( pFftTbl, Ltrana, Ltrana_2, LtranaLogMinus1, xfp_left, xfp_left, 1 );
413 29 : r_fft_fx_lc( pFftTbl, Ltrana, Ltrana_2, LtranaLogMinus1, xfp_right, xfp_right, 1 );
414 : }
415 :
416 : /* square representation */
417 54 : fft_spec2_fx( xfp_left, magSqLeft, Ltrana );
418 54 : fft_spec2_fx( xfp_right, magSqRight, Ltrana );
419 :
420 : /* band powers in frequency groups
421 : * exclude bin at PI from calculation */
422 54 : magSqLeft[Ltrana_2] = L_deposit_l( 0 );
423 54 : move32();
424 54 : magSqRight[Ltrana_2] = L_deposit_l( 0 );
425 54 : move32();
426 : }
427 :
428 132 : pGrPowLeft = &gr_pow_left[0];
429 132 : pGrPowRight = &gr_pow_right[0];
430 132 : pGw = gw;
431 1159 : FOR( k = 0; k < Lgw; k++ )
432 : {
433 1027 : test();
434 1027 : test();
435 1027 : IF( LE_16( burst_len, 1 ) || ( EQ_16( burst_len, 2 ) && last_fec != 0 ) )
436 : {
437 403 : lowerEdge = *pGw++;
438 403 : move16();
439 403 : l = sub( *pGw, lowerEdge );
440 403 : headroom = GR_POW_HEADROOM[k]; /* Number of bits to scale down preventing from saturation in accumulation.*/
441 403 : move16();
442 403 : pLeft = magSqLeft + lowerEdge;
443 403 : pRight = magSqRight + lowerEdge;
444 403 : *pGrPowLeft = L_deposit_l( 0 );
445 403 : move32();
446 403 : *pGrPowRight = L_deposit_l( 0 );
447 403 : move32();
448 8861 : FOR( i = 0; i < l; i++ )
449 : {
450 8458 : acc = L_shr( *pLeft++, headroom ); /* Scale down to prevent from saturation. */
451 8458 : *pGrPowLeft = L_add( *pGrPowLeft, acc );
452 8458 : move32();
453 8458 : acc = L_shr( *pRight++, headroom );
454 8458 : *pGrPowRight = L_add( *pGrPowRight, acc );
455 8458 : move32();
456 : }
457 :
458 : /*Xavg[k] = sqrt(0.5f*(gr_pow_left[k]+gr_pow_right[k])/(float)(gw[k+1]-gw[k]));*/
459 403 : acc = L_shr( L_add( *pGrPowLeft, *pGrPowRight ), 1 );
460 403 : acc = Mult_32_16( acc, gw_len_inv_fx[k] ); /* -headroom */
461 :
462 403 : acc = Sqrt_l( acc, &expo ); /* -headroom+31+expo */
463 :
464 403 : expo = sub( add( expo, 31 ), headroom );
465 403 : if ( EQ_16( s_and( expo, 1 ), 1 ) )
466 : {
467 295 : acc = Mult_32_16( acc, 23170 ); /* 1/sqrt(2) in Q15 */
468 : }
469 403 : expo = shr( expo, 1 );
470 403 : Xavg[k] = round_fx( L_shl( acc, sub( sub( 16, expo ), 2 ) ) ); /* Q0, additional right shift by 2 to account for that Xavg is
471 : calculated using lenght N/4 fft but is applied on a fft of length N */
472 403 : move16();
473 :
474 : /*dither phase in case of transient */
475 : /* separate transition detection and application of forced burst dithering */
476 403 : tr_dec[k] = 0;
477 403 : move16();
478 403 : Mpy_32_16_ss( *pGrPowLeft, THRESH_TR_LIN_BY2_FX, &acc, &lsb ); /* To facilitate fixed-point implementation, divide threshold by 2. */
479 403 : acc = L_or( L_shl_sat( acc, 16 ), L_and( 0xffffL, lsb ) ); /* Equivalent to concatenate acc and lsb, and then down shift by 16 bits. */
480 403 : if ( GT_32( *pGrPowRight, acc ) ) /* gr_pow_right > thres_tr_lin*gr_pow_left */
481 : {
482 12 : tr_dec[k] = 1;
483 12 : move16();
484 : }
485 403 : Mpy_32_16_ss( *pGrPowRight, THRESH_TR_LIN_BY2_FX, &acc, &lsb );
486 403 : acc = L_or( L_shl_sat( acc, 16 ), L_and( 0xffffL, lsb ) ); /* Equivalent to concatenate acc and lsb, and then down shift by 16 bits. */
487 403 : if ( GT_32( *pGrPowLeft, acc ) ) /* gr_pow_left > thres_tr_lin*gr_pow_right */
488 : {
489 10 : tr_dec[k] = 1;
490 10 : move16();
491 : }
492 :
493 : /* magnitude modification */
494 403 : IF( add( tr_dec[k], att_always ) != 0 )
495 : {
496 :
497 : #if MAX_INCREASE_GRPPOW_FX != 0
498 : #error trans_ana_fx-- The following implementation is incorrect
499 : #endif
500 22 : att_val = 32767;
501 22 : move16();
502 22 : IF( *pGrPowRight > 0 )
503 : {
504 17 : IF( LT_32( *pGrPowRight, *pGrPowLeft ) ) /* i.e., (gr_pow_right/gr_pow_left) < 1.0 */
505 : {
506 : /* Compute sqrt(grp_pow_chg), where grp_pow_chg = gr_pow_right/gr_pow_left. */
507 5 : tmp16 = ratio( *pGrPowRight, *pGrPowLeft, &expo ); /* tmp16 in Q14 */
508 5 : expo = sub( expo, ( 15 - 14 ) ); /* Now, tmp16 is considered in Q15 */
509 5 : i = norm_s( tmp16 );
510 5 : man = shl( tmp16, i ); /* Mandatory normalization before sqrtNthOrder(). */
511 5 : expo = add( expo, i );
512 5 : man = sqrt2ndOrder( man );
513 5 : if ( s_and( expo, 1 ) != 0 ) /* Check even or odd. */
514 : {
515 4 : man = mult_r( man, FEC_HQ_ECU_ROOT2 );
516 : }
517 5 : expo = shr( expo, 1 ); /* Divided by 2-- square root operation. */
518 5 : att_val = shr( man, expo ); /* Denormalize the mantissa back to Q15. */
519 : }
520 : /* ELSE do nothing because (gr_pow_right/gr_pow_left) >= 1.0 (i.e.,
521 : * max_increase_grppow_lin) */
522 : }
523 :
524 22 : mag_chg_1st[k] = att_val;
525 22 : move16();
526 22 : mag_chg[k] = att_val;
527 22 : move16();
528 : }
529 : ELSE
530 : {
531 381 : mag_chg_1st[k] = 32767;
532 381 : move16();
533 381 : mag_chg[k] = 32767;
534 381 : move16(); /* Set to 1.0 in Q15 */
535 : }
536 : }
537 : ELSE
538 : {
539 : /* Since attDegreeFrames is discrete (integer) and hard limited to OFF_FRAMES_LIMIT,
540 : * it is much easier to implement 10^(-att_degree/20.0) by a simply direct
541 : * table-lookup. Also, att_per_frame is discrete as well and can be
542 : * either ATT_PER_FRAME-1 or ATT_PER_FRAME and nothing else. This
543 : * means only 2 tables of size=(OFF_FRAMES_LIMIT+1) each are required.
544 : * To take square root into account, it is divided by 20 instead of 10. */
545 624 : IF( EQ_16( att_per_frame, ATT_PER_FRAME ) ) /* Select the corresponding lookup-table. */
546 : {
547 0 : att_val = POW_ATT_TABLE0[attDegreeFrames]; /* 10^(-attDegreeFrames*(ATT_PER_FRAME)/20) */
548 0 : move16();
549 : }
550 : ELSE
551 : {
552 624 : att_val = POW_ATT_TABLE1[attDegreeFrames]; /* 10^(-attDegreeFrames*(ATT_PER_FRAME - 1)/20) */
553 624 : move16();
554 : }
555 624 : mag_chg[k] = mult_r( mag_chg_1st[k], att_val ); /* Q15 */
556 624 : move16();
557 :
558 624 : IF( GT_16( burst_len, BETA_MUTE_THR ) )
559 : {
560 480 : *beta_mute = shr( *beta_mute, 1 );
561 480 : move16();
562 : }
563 624 : alpha[k] = mag_chg[k];
564 624 : move16();
565 : /*beta[k] = sqrt(1.0f - SQR(alpha[k])) * *beta_mute;*/
566 624 : acc = L_sub( 1073741824, L_mult0( alpha[k], alpha[k] ) );
567 624 : acc = Sqrt_l( acc, &expo );
568 624 : expo = add( 30, add( 31, expo ) );
569 624 : if ( EQ_16( s_and( expo, 1 ), 1 ) )
570 : {
571 624 : acc = Mult_32_16( acc, 23170 ); /* 1/sqrt(2) in Q15 */
572 : }
573 624 : expo = shr( expo, 1 );
574 624 : beta[k] = mult_r( *beta_mute, round_fx( L_shl( acc, sub( 31, expo ) ) ) );
575 624 : move16();
576 :
577 624 : IF( GE_16( k, LGW32K - 1 ) )
578 : {
579 156 : beta[k] = mult_r( beta[k], 3277 ); /* 0.1 in Q15 */
580 156 : move16();
581 : }
582 468 : ELSE IF( GE_16( k, LGW16K - 1 ) )
583 : {
584 78 : beta[k] = mult_r( beta[k], 16384 ); /* 0.5 in Q15 */
585 78 : move16();
586 : }
587 : }
588 1027 : pGrPowLeft++;
589 1027 : pGrPowRight++;
590 : }
591 :
592 132 : return;
593 : }
594 :
595 : /*-----------------------------------------------------------------------------
596 : * peakfinder_fx()
597 : *
598 : * Peak-picking algorithm
599 : *----------------------------------------------------------------------------*/
600 54 : static void ivas_peakfinder_fx(
601 : const Word16 *x0, /* i : vector from which the maxima will be found */
602 : const Word16 len0, /* i : length of input vector */
603 : Word16 *plocs, /* o : the indices of the identified peaks in x0 Q0 */
604 : Word16 *cInd, /* o : number of identified peaks Q0 */
605 : const Word16 sel, /* i : The amount above surrounding data for a peak to be identified */
606 : const Word16 endpoints /* i : Flag to include endpoints in peak search */
607 : )
608 : {
609 : const Word16 *pX0;
610 : Word16 minMag, tempMag, leftMin;
611 : Word16 dx0[L_PROT48k_2], x[L_PROT48k_2 + 1], peakMag[MAX_PLOCS];
612 : Word16 *pDx0, *pDx01, *pX;
613 : Word16 i, len, tempLoc, foundPeak, ii, xInd, tmp16, threshold, xAt0, xAt1, xAt2;
614 : Word16 len0Minus1, len0Minus2, lenMinus1;
615 : Word16 indarr[L_PROT48k_2 + 1], peakLoc[MAX_PLOCS];
616 : Word16 *pInd;
617 :
618 54 : tempLoc = 0;
619 54 : move16();
620 :
621 : /* Find derivative */
622 54 : len0Minus1 = sub( len0, 1 );
623 54 : pX0 = x0 + 1;
624 54 : Vr_subt( pX0, x0, dx0, len0Minus1 );
625 :
626 34102 : FOR( i = 0; i < len0Minus1; i++ )
627 : {
628 34048 : if ( dx0[i] == 0 )
629 : {
630 7663 : dx0[i] = -1;
631 7663 : move16();
632 : }
633 : }
634 :
635 : /* Find where the derivative changes sign
636 : Include endpoints in potential peaks and valleys */
637 54 : pX = x;
638 54 : pX0 = x0;
639 54 : pInd = indarr;
640 54 : pDx01 = dx0;
641 54 : pDx0 = pDx01 + 1;
642 54 : len = 0;
643 54 : move16();
644 54 : IF( endpoints )
645 : {
646 54 : *pX++ = *pX0++;
647 54 : move16();
648 54 : *pInd++ = 0;
649 54 : move16();
650 54 : len = 2;
651 54 : move16();
652 : }
653 54 : len0Minus2 = sub( len0, 2 );
654 :
655 34048 : FOR( i = 0; i < len0Minus2; i++ )
656 : {
657 33994 : IF( s_xor( *pDx01++, *pDx0++ ) < 0 ) /* Detect sign change. */
658 : {
659 15438 : *pInd++ = add( i, 1 );
660 15438 : move16();
661 15438 : *pX++ = *pX0;
662 15438 : move16();
663 15438 : len = add( len, 1 );
664 : }
665 33994 : pX0++;
666 : }
667 54 : IF( endpoints )
668 : {
669 54 : *pInd = len0Minus1;
670 54 : move16();
671 54 : *pX = *pX0;
672 54 : move16();
673 : }
674 : /* x[] only has the peaks, valleys, and endpoints */
675 54 : minimum_fx( x, len, &minMag );
676 :
677 54 : pInd = indarr;
678 54 : test();
679 54 : test();
680 54 : IF( GT_16( len, 2 ) || ( !endpoints && ( len > 0 ) ) )
681 : {
682 : /* Set initial parameters for loop */
683 54 : tempMag = minMag;
684 54 : move16();
685 54 : foundPeak = 0;
686 54 : move16();
687 54 : leftMin = minMag;
688 54 : move16();
689 54 : threshold = add( leftMin, sel );
690 :
691 54 : IF( len > 0 )
692 : {
693 : /* Deal with first point a little differently since tacked it on
694 : Calculate the sign of the derivative since we took the first point
695 : on it does not necessarily alternate like the rest. */
696 :
697 : /* The first point is larger or equal to the second */
698 54 : pX = x;
699 54 : xAt0 = *pX++;
700 54 : move16();
701 54 : xAt1 = *pX++;
702 54 : move16();
703 54 : xAt2 = *pX--; /* After decrement, pX points to x[1]. */
704 54 : move16();
705 54 : IF( GE_16( xAt0, xAt1 ) )
706 : {
707 10 : ii = -1;
708 10 : move16();
709 10 : IF( GE_16( xAt1, xAt2 ) ) /* x[1] is not extremum -> overwrite with x[0] */
710 : {
711 0 : *pX = xAt0; /* x[1] = x[0] */
712 0 : move16();
713 0 : tmp16 = *pInd++;
714 0 : move16();
715 0 : *pInd++ = tmp16; /* ind[1] = ind[0] */
716 0 : move16();
717 0 : len = sub( len, 1 );
718 : }
719 10 : pX--; /* After decrement, pX points to x[0]. */
720 : }
721 : ELSE /* First point is smaller than the second */
722 : {
723 44 : ii = 0;
724 44 : move16();
725 44 : IF( LT_16( xAt1, xAt2 ) ) /* x[1] is not extremum -> overwrite with x[0] */
726 : {
727 0 : *pX = xAt0; /* x[1] = x[0] */
728 0 : move16();
729 0 : tmp16 = *pInd++;
730 0 : move16();
731 0 : *pInd++ = tmp16; /* ind[1] = ind[0] */
732 0 : move16();
733 0 : len = sub( len, 1 );
734 : }
735 : }
736 54 : pX--; /* After decrement, pX points to either x[-1] or x[0]. */
737 : }
738 : ELSE
739 : {
740 : // PMTE ()
741 0 : ii = -1; /* First point is a peak */
742 0 : move16();
743 0 : IF( GE_16( len, 2 ) )
744 : {
745 0 : if ( GE_16( x[1], x[0] ) )
746 : {
747 0 : ii = 0; /* First point is a valley, skip it */
748 0 : move16();
749 : }
750 : }
751 : }
752 54 : *cInd = 0;
753 54 : move16();
754 : /*Loop through extrema which should be peaks and then valleys*/
755 54 : lenMinus1 = sub( len, 1 );
756 : FOR( ;; )
757 : {
758 7793 : ii = add( ii, 1 ); /* This is a peak */
759 :
760 : /* Make sure we don't iterate past the length of our vector */
761 7793 : IF( GE_16( ii, lenMinus1 ) )
762 : {
763 54 : BREAK;
764 : }
765 :
766 : /*Reset peak finding if we had a peak and the next peak is bigger
767 : than the last or the left min was small enough to reset.*/
768 7739 : IF( foundPeak > 0 )
769 : {
770 890 : tempMag = minMag;
771 890 : move16();
772 890 : foundPeak = 0;
773 890 : move16();
774 : }
775 :
776 : /* Found new peak that was larger than temp mag and selectivity larger
777 : than the minimum to its left. */
778 7739 : IF( GT_16( *( ++pX ), tempMag ) )
779 : {
780 7660 : IF( GT_16( *pX, threshold ) ) /* threshold = leftMin + sel */
781 : {
782 987 : tempLoc = ii;
783 987 : move16();
784 987 : tempMag = *pX;
785 987 : move16();
786 : }
787 : }
788 :
789 7739 : ii = add( ii, 1 ); /* Move onto the valley */
790 7739 : pX++;
791 :
792 : /* Come down at least sel from peak */
793 7739 : IF( foundPeak == 0 )
794 : {
795 7739 : IF( GT_16( tempMag, add( sel, *pX ) ) )
796 : {
797 890 : foundPeak = 1; /* We have found a peak */
798 890 : move16();
799 890 : leftMin = *pX;
800 890 : move16();
801 890 : threshold = add( leftMin, sel );
802 890 : peakLoc[*cInd] = tempLoc; /* Add peak to index */
803 890 : move16();
804 890 : peakMag[*cInd] = tempMag;
805 890 : move16();
806 890 : *cInd = add( *cInd, 1 );
807 890 : move16();
808 : }
809 : }
810 7739 : IF( foundPeak == 0 ) /* The above IF-block has not found the peak yet. */
811 : {
812 6849 : IF( LT_16( *pX, leftMin ) ) /* New left minimum */
813 : {
814 746 : leftMin = *pX;
815 746 : move16();
816 746 : threshold = add( leftMin, sel );
817 : }
818 : }
819 : }
820 :
821 : /* Check end point */
822 54 : IF( GT_16( x[lenMinus1], tempMag ) )
823 : {
824 38 : IF( GT_16( x[lenMinus1], threshold ) ) /* threshold = leftMin + sel */
825 : {
826 0 : peakLoc[*cInd] = lenMinus1;
827 0 : move16();
828 0 : peakMag[*cInd] = x[lenMinus1];
829 0 : move16();
830 0 : *cInd = add( *cInd, 1 );
831 0 : move16();
832 0 : foundPeak = 1;
833 0 : move16();
834 : }
835 : }
836 54 : IF( foundPeak == 0 ) /* Check if we still need to add the last point */
837 : {
838 54 : IF( GT_16( tempMag, minMag ) )
839 : {
840 0 : peakLoc[*cInd] = tempLoc;
841 0 : move16();
842 0 : peakMag[*cInd] = tempMag;
843 0 : move16();
844 0 : *cInd = add( *cInd, 1 );
845 0 : move16();
846 : }
847 : }
848 :
849 : /* Create output */
850 944 : FOR( i = 0; i < *cInd; i++ )
851 : {
852 890 : plocs[i] = *( indarr + peakLoc[i] );
853 890 : move16();
854 : }
855 : }
856 : ELSE /* This is a monotone function where an endpoint is the only peak */
857 : {
858 0 : IF( endpoints )
859 : {
860 0 : xInd = 1;
861 0 : move16();
862 0 : if ( GT_16( x[0], x[1] ) )
863 : {
864 0 : xInd = 0;
865 0 : move16();
866 : }
867 :
868 0 : peakMag[0] = x[xInd];
869 0 : move16();
870 0 : IF( GT_16( peakMag[0], add( minMag, sel ) ) )
871 : {
872 0 : plocs[0] = *( indarr + xInd );
873 0 : move16();
874 0 : *cInd = 1;
875 0 : move16();
876 : }
877 : ELSE
878 : {
879 0 : *cInd = 0;
880 0 : move16();
881 : }
882 : }
883 : ELSE
884 : { /* Input constant or all zeros -- no peaks found */
885 0 : *cInd = 0;
886 0 : move16();
887 : }
888 : }
889 54 : }
890 :
891 0 : static void peakfinder_fx(
892 : const Word16 *x0, /* i : vector from which the maxima will be found */
893 : const Word16 len0, /* i : length of input vector */
894 : Word16 *plocs, /* o : the indices of the identified peaks in x0 Q0 */
895 : Word16 *cInd, /* o : number of identified peaks Q0 */
896 : const Word16 sel /* i : The amount above surrounding data for a peak to be identified */
897 : )
898 : {
899 : const Word16 *pX0;
900 : Word16 minMag, tempMag, leftMin;
901 : Word16 dx0[L_PROT48k_2], x[L_PROT48k_2 + 1], peakMag[MAX_PLOCS];
902 : Word16 *pDx0, *pDx01, *pX;
903 : Word16 i, len, tempLoc, foundPeak, ii, xInd, tmp16, threshold, xAt0, xAt1, xAt2;
904 : Word16 len0Minus1, len0Minus2, lenMinus1;
905 : Word16 indarr[L_PROT48k_2 + 1], peakLoc[MAX_PLOCS];
906 : Word16 *pInd;
907 :
908 0 : tempLoc = 0;
909 0 : move16();
910 :
911 : /* Find derivative */
912 0 : len0Minus1 = sub( len0, 1 );
913 0 : pX0 = x0 + 1;
914 0 : Vr_subt( pX0, x0, dx0, len0Minus1 );
915 :
916 0 : FOR( i = 0; i < len0Minus1; i++ )
917 : {
918 0 : if ( dx0[i] == 0 )
919 : {
920 0 : dx0[i] = -1;
921 0 : move16();
922 : }
923 : }
924 :
925 : /* Find where the derivative changes sign
926 : Include endpoints in potential peaks and valleys */
927 0 : pX = x;
928 0 : pX0 = x0;
929 0 : pInd = indarr;
930 0 : pDx01 = dx0;
931 0 : pDx0 = pDx01 + 1;
932 : {
933 0 : *pX++ = *pX0++;
934 0 : move16();
935 0 : *pInd++ = 0;
936 0 : move16();
937 0 : len = 2;
938 0 : move16();
939 : }
940 0 : len0Minus2 = sub( len0, 2 );
941 :
942 0 : FOR( i = 0; i < len0Minus2; i++ )
943 : {
944 0 : IF( s_xor( *pDx01++, *pDx0++ ) < 0 ) /* Detect sign change. */
945 : {
946 0 : *pInd++ = add( i, 1 );
947 0 : move16();
948 0 : *pX++ = *pX0;
949 0 : move16();
950 0 : len = add( len, 1 );
951 : }
952 0 : pX0++;
953 : }
954 : {
955 0 : *pInd = len0Minus1;
956 0 : move16();
957 0 : *pX = *pX0;
958 0 : move16();
959 : }
960 : /* x[] only has the peaks, valleys, and endpoints */
961 0 : minimum_fx( x, len, &minMag );
962 :
963 0 : pInd = indarr;
964 0 : IF( GT_16( len, 2 ) )
965 : {
966 : /* Set initial parameters for loop */
967 0 : tempMag = minMag;
968 0 : move16();
969 0 : foundPeak = 0;
970 0 : move16();
971 0 : leftMin = minMag;
972 0 : move16();
973 0 : threshold = add( leftMin, sel );
974 :
975 : {
976 : /* Deal with first point a little differently since tacked it on
977 : Calculate the sign of the derivative since we took the first point
978 : on it does not necessarily alternate like the rest. */
979 :
980 : /* The first point is larger or equal to the second */
981 0 : pX = x;
982 0 : xAt0 = *pX++;
983 0 : move16();
984 0 : xAt1 = *pX++;
985 0 : move16();
986 0 : xAt2 = *pX--; /* After decrement, pX points to x[1]. */
987 0 : move16();
988 0 : IF( GE_16( xAt0, xAt1 ) )
989 : {
990 0 : ii = -1;
991 0 : move16();
992 0 : IF( GE_16( xAt1, xAt2 ) ) /* x[1] is not extremum -> overwrite with x[0] */
993 : {
994 0 : *pX = xAt0; /* x[1] = x[0] */
995 0 : move16();
996 0 : tmp16 = *pInd++;
997 0 : move16();
998 0 : *pInd++ = tmp16; /* ind[1] = ind[0] */
999 0 : move16();
1000 0 : len = sub( len, 1 );
1001 : }
1002 0 : pX--; /* After decrement, pX points to x[0]. */
1003 : }
1004 : ELSE /* First point is smaller than the second */
1005 : {
1006 0 : ii = 0;
1007 0 : move16();
1008 0 : IF( LT_16( xAt1, xAt2 ) ) /* x[1] is not extremum -> overwrite with x[0] */
1009 : {
1010 0 : *pX = xAt0; /* x[1] = x[0] */
1011 0 : move16();
1012 0 : tmp16 = *pInd++;
1013 0 : move16();
1014 0 : *pInd++ = tmp16; /* ind[1] = ind[0] */
1015 0 : move16();
1016 0 : len = sub( len, 1 );
1017 : }
1018 : }
1019 0 : pX--; /* After decrement, pX points to either x[-1] or x[0]. */
1020 : }
1021 0 : *cInd = 0;
1022 0 : move16();
1023 : /*Loop through extrema which should be peaks and then valleys*/
1024 0 : lenMinus1 = sub( len, 1 );
1025 : FOR( ;; )
1026 : {
1027 0 : ii = add( ii, 1 ); /* This is a peak */
1028 :
1029 : /* Make sure we don't iterate past the length of our vector */
1030 0 : IF( GE_16( ii, lenMinus1 ) )
1031 : {
1032 0 : BREAK;
1033 : }
1034 :
1035 : /*Reset peak finding if we had a peak and the next peak is bigger
1036 : than the last or the left min was small enough to reset.*/
1037 0 : IF( foundPeak > 0 )
1038 : {
1039 0 : tempMag = minMag;
1040 0 : move16();
1041 0 : foundPeak = 0;
1042 0 : move16();
1043 : }
1044 :
1045 : /* Found new peak that was larger than temp mag and selectivity larger
1046 : than the minimum to its left. */
1047 0 : IF( GT_16( *( ++pX ), tempMag ) )
1048 : {
1049 0 : IF( GT_16( *pX, threshold ) ) /* threshold = leftMin + sel */
1050 : {
1051 0 : tempLoc = ii;
1052 0 : move16();
1053 0 : tempMag = *pX;
1054 0 : move16();
1055 : }
1056 : }
1057 :
1058 0 : ii = add( ii, 1 ); /* Move onto the valley */
1059 0 : pX++;
1060 :
1061 : /* Come down at least sel from peak */
1062 0 : IF( foundPeak == 0 )
1063 : {
1064 0 : IF( GT_16( tempMag, add( sel, *pX ) ) )
1065 : {
1066 0 : foundPeak = 1; /* We have found a peak */
1067 0 : move16();
1068 0 : leftMin = *pX;
1069 0 : move16();
1070 0 : threshold = add( leftMin, sel );
1071 0 : peakLoc[*cInd] = tempLoc; /* Add peak to index */
1072 0 : move16();
1073 0 : peakMag[*cInd] = tempMag;
1074 0 : move16();
1075 0 : *cInd = add( *cInd, 1 );
1076 0 : move16();
1077 : }
1078 : }
1079 0 : IF( foundPeak == 0 ) /* The above IF-block has not found the peak yet. */
1080 : {
1081 0 : IF( LT_16( *pX, leftMin ) ) /* New left minimum */
1082 : {
1083 0 : leftMin = *pX;
1084 0 : move16();
1085 0 : threshold = add( leftMin, sel );
1086 : }
1087 : }
1088 : }
1089 :
1090 : /* Check end point */
1091 0 : IF( GT_16( x[lenMinus1], tempMag ) )
1092 : {
1093 0 : IF( GT_16( x[lenMinus1], threshold ) ) /* threshold = leftMin + sel */
1094 : {
1095 0 : peakLoc[*cInd] = lenMinus1;
1096 0 : move16();
1097 0 : peakMag[*cInd] = x[lenMinus1];
1098 0 : move16();
1099 0 : *cInd = add( *cInd, 1 );
1100 0 : foundPeak = 1;
1101 0 : move16();
1102 : }
1103 : }
1104 0 : IF( foundPeak == 0 ) /* Check if we still need to add the last point */
1105 : {
1106 0 : IF( GT_16( tempMag, minMag ) )
1107 : {
1108 0 : peakLoc[*cInd] = tempLoc;
1109 0 : move16();
1110 0 : peakMag[*cInd] = tempMag;
1111 0 : move16();
1112 0 : *cInd = add( *cInd, 1 );
1113 0 : move16();
1114 : }
1115 : }
1116 :
1117 : /* Create output */
1118 0 : FOR( i = 0; i < *cInd; i++ )
1119 : {
1120 0 : plocs[i] = *( indarr + peakLoc[i] );
1121 0 : move16();
1122 : }
1123 : }
1124 : ELSE /* This is a monotone function where an endpoint is the only peak */
1125 : {
1126 : {
1127 0 : xInd = 1;
1128 0 : move16();
1129 0 : if ( GT_16( x[0], x[1] ) )
1130 : {
1131 0 : xInd = 0;
1132 0 : move16();
1133 : }
1134 :
1135 0 : peakMag[0] = x[xInd];
1136 0 : move16();
1137 0 : IF( GT_16( peakMag[0], add( minMag, sel ) ) )
1138 : {
1139 0 : plocs[0] = *( indarr + xInd );
1140 0 : move16();
1141 0 : *cInd = 1;
1142 0 : move16();
1143 : }
1144 : ELSE
1145 : {
1146 0 : *cInd = 0;
1147 0 : move16();
1148 : }
1149 : }
1150 : }
1151 0 : }
1152 :
1153 : /*-----------------------------------------------------------------------------
1154 : * imax_fx()
1155 : *
1156 : * Get interpolated maximum position
1157 : *-----------------------------------------------------------------------------*/
1158 0 : static Word16 imax_fx( /* o: The location, relative to the middle of the 3 given data point, of the maximum. (Q15) */
1159 : const Word16 *y, /* i: The 3 given data points. */
1160 : const Word16 special /* i: -1 = left edge special case, 0 = normal, +1 = right edge special case */
1161 : )
1162 : {
1163 : Word16 posi;
1164 : Word16 y1, y2, y3, man, expo, edge;
1165 : const Word16 *pY;
1166 : Word32 numer, denom, sign, acc, y3_y1;
1167 : /* Seek the extremum of the parabola P(x) defined by 3 consecutive points
1168 : so that P([-1 0 1]) = [y1 y2 y3] */
1169 0 : pY = y;
1170 0 : y1 = *pY++, y2 = *pY++, y3 = *pY;
1171 0 : move16();
1172 0 : move16();
1173 0 : move16();
1174 :
1175 : /* The extremum value:
1176 : * y2i = -0.125f * SQR(y3_y1) / (y1+y3-2*y2)+y2
1177 : * is not computed. Alternatively, the derivative of the parabola evaluated at y=0,
1178 : * dP/dy|y=0, is used to determine whether the extremum is maximum or not.
1179 : */
1180 :
1181 : /* Compute the extremum location: posi = (y3 - y1)/(4*y2 - 2*y1 - 2*y3). */
1182 0 : y3_y1 = L_sub( y3, y1 );
1183 0 : acc = L_shl( y2, 1 ); /* N.B. y2 is multiplied by 2 not 4. */
1184 0 : acc = L_sub( acc, y1 ); /* N.B. Y1 is not multiplied by 2. */
1185 0 : denom = L_sub( acc, y3 ); /* N.B. Y3 is not multiplied by 2. */
1186 0 : sign = L_xor( y3_y1, denom ); /* Preserve the sign since div_s() only takes positive arguments. */
1187 0 : numer = L_abs( y3_y1 );
1188 0 : denom = L_abs( denom );
1189 0 : IF( numer == 0 )
1190 : {
1191 0 : return 0;
1192 : }
1193 0 : IF( denom == 0 )
1194 : {
1195 0 : return 0;
1196 : }
1197 : /* Although the output of ratio() is in Q14, adding the missing factor of 2 (See above)
1198 : * in the denominator, the output is now considered to be in Q15. */
1199 0 : man = ratio( numer, denom, &expo ); /* The mantissa is considered in Q15 */
1200 0 : posi = shr_sat( man, expo ); /* in Q15 (Due to saturation, it is automatically bound inside [-1.0,1.0].) */
1201 0 : if ( sign < 0 ) /* Restore the sign. */
1202 : {
1203 0 : posi = negate( posi );
1204 : }
1205 :
1206 : /* For both edges (left and right), the extremum found above may be minimum.
1207 : * It needs to reject the minimum. */
1208 0 : IF( special != 0 ) /* Either edge specical case. */
1209 : {
1210 0 : edge = 0x7fff; /* 1 in Q15 for the right edge special case */
1211 0 : move16();
1212 0 : if ( special < 0 )
1213 : {
1214 0 : edge = 0; /* Left edge special case */
1215 0 : move16();
1216 : }
1217 :
1218 : /* The derivative (slope) of the interpolating parabola = 2*A*y + B,
1219 : * where A = (y3 + y1)/2 - y2
1220 : * and B = (y3 - y1)/2.
1221 : * Therefore, the slope at y=0 is simply B. Use this slope to determine
1222 : * if the parabola is concave upward or downward.
1223 : */
1224 0 : IF( posi > 0 ) /* The extremum is in between the middle and the right given data points. */
1225 : {
1226 0 : IF( LE_16( y3, y1 ) ) /* Check the slope at y=0, i.e., at the middle given data point. */
1227 : {
1228 0 : posi = edge; /* minimum case */
1229 0 : move16();
1230 : }
1231 : ELSE
1232 : {
1233 0 : posi = sub( 0x7fff, posi ); /* maximum case */
1234 : }
1235 : }
1236 : ELSE /* The extremum is in between the left and the middle given data points. */
1237 : {
1238 0 : IF( GE_16( y3, y1 ) )
1239 : {
1240 0 : posi = edge; /* minimum case */
1241 0 : move16();
1242 : }
1243 : ELSE
1244 : {
1245 0 : posi = add( 0x7fff, posi ); /* maximum case */
1246 : }
1247 : }
1248 : }
1249 0 : return posi; /* Q15. The position either left or right relative to the index of the middle of the 3 given data points. */
1250 : }
1251 :
1252 : /*-----------------------------------------------------------------------------
1253 : * spec_ana_fx()
1254 : *
1255 : * Spectral analysis
1256 : *-----------------------------------------------------------------------------*/
1257 :
1258 54 : static void ivas_spec_ana_fx(
1259 : const Word16 *prevsynth, /* i : Input signal */
1260 : Word16 *plocs, /* o : The indicies of the identified peaks Q0 */
1261 : Word32 *plocsi, /* o : Interpolated positions of the identified peaks Q16 */
1262 : Word16 *num_plocs, /* o : Number of identified peaks Q0 */
1263 : Word16 *X_sav, /* o : Stored fft spectrum */
1264 : const Word16 output_frame, /* i : Frame length Q0 */
1265 : const Word16 bwidth_fx, /* i : Encoded bandwidth index Q0 */
1266 : Word16 *Q, /* o : Q value of the fft spectrum */
1267 : const Word16 element_mode, /* i : IVAS element mode */
1268 : Word16 *noise_fac, /* o : for few peaks zeroing valleys decision making Q15*/
1269 : const Word16 pcorr )
1270 : {
1271 54 : Word16 Lprot, LprotLog2Minus1 = 0, hamm_len2 = 0, Lprot2, Lprot2_1, m, n;
1272 54 : const Word16 *pFftTbl = NULL;
1273 : Word16 xfp[L_PROT48k];
1274 : Word32 magSq[L_PROT48k / 2 + 1], *pMagSq;
1275 : Word16 *pXfp, *pXfp1, *pXsav, *pPlocs;
1276 : Word16 Xmax, Xmin, sel, man, expo, expoBy2;
1277 : Word16 sinTblOffset, rectLength, fraction, special;
1278 : Word32 *pPlocsi;
1279 : Word32 acc;
1280 : Word16 stop_band_start;
1281 : Word16 stop_band_length;
1282 54 : const Word16 *w_hamm = NULL;
1283 : Word16 window_corr, window_corr_step;
1284 : Word16 currPlocs, endPlocs, nJacob, k, i;
1285 : Word32 sig, noise, st_point, end_point;
1286 : Word32 xfp_32[3]; // Q + 16
1287 :
1288 54 : move16(); // LprotLog2Minus1
1289 54 : move16(); // hamm_len2
1290 54 : Lprot = 512; /* 1536=(2*output_frame)*1024/1280; */
1291 54 : move16();
1292 :
1293 54 : sinTblOffset = 0;
1294 54 : move16();
1295 :
1296 54 : IF( EQ_16( output_frame, L_FRAME48k ) )
1297 : {
1298 25 : Lprot = L_PROT48k; /* 1536=(2*output_frame)*1024/1280; */
1299 25 : move16();
1300 25 : hamm_len2 = L_PROT_HAMM_LEN2_48k; /* half Hamming window = 288 */
1301 25 : move16();
1302 25 : w_hamm = w_hamm_sana48k_2_fx;
1303 : }
1304 29 : ELSE IF( EQ_16( output_frame, L_FRAME32k ) )
1305 : {
1306 29 : Lprot = L_PROT32k; /* 1024 */
1307 29 : move16();
1308 29 : sinTblOffset = 4;
1309 29 : move16();
1310 29 : hamm_len2 = L_PROT_HAMM_LEN2_32k; /* half Hamming window = 192 */
1311 29 : move16();
1312 29 : pFftTbl = FFT_W512; /* Table for 1024-point real input FFT */
1313 29 : LprotLog2Minus1 = 9; /* FFT stages for complex input FFT */
1314 29 : move16();
1315 29 : w_hamm = w_hamm_sana32k_2_fx;
1316 : }
1317 : ELSE
1318 : {
1319 0 : Lprot = 512;
1320 0 : move16();
1321 0 : sinTblOffset = 8;
1322 0 : move16();
1323 0 : hamm_len2 = L_PROT_HAMM_LEN2_16k; /* half Hamming window = 96 */
1324 0 : move16();
1325 0 : pFftTbl = FFT_W256; /* Table for 512-point real input FFT */
1326 0 : LprotLog2Minus1 = 8; /* FFT stages for complex input FFT */
1327 0 : move16();
1328 0 : w_hamm = w_hamm_sana16k_2_fx;
1329 : }
1330 :
1331 54 : Lprot2 = shr( Lprot, 1 );
1332 54 : Lprot2_1 = add( Lprot2, 1 );
1333 54 : rectLength = sub( Lprot, shl( hamm_len2, 1 ) ); /* The length of the rectangular portion of the Hamming-Rectangular window. */
1334 :
1335 54 : *Q = s_max( 0, sub( Exp16Array( Lprot, prevsynth ), 1 ) );
1336 54 : move16();
1337 54 : Copy_Scale_sig( prevsynth, xfp, Lprot, *Q );
1338 :
1339 :
1340 54 : IF( EQ_16( output_frame, L_FRAME48k ) )
1341 : {
1342 : /* Apply hamming-rect window */
1343 25 : IF( element_mode == EVS_MONO )
1344 : {
1345 0 : windowing( xfp, xfp, w_hamm_sana48k_2_fx, rectLength, hamm_len2 );
1346 : }
1347 : ELSE
1348 : {
1349 : // PMTE()
1350 25 : window_corr = w_hamm[0];
1351 25 : move16();
1352 25 : window_corr_step = idiv1616( w_hamm[0], hamm_len2 );
1353 7225 : FOR( i = 0; i < hamm_len2; i++ )
1354 : {
1355 7200 : xfp[i] = mult_r( shl( prevsynth[i], *Q ), sub( w_hamm[i], window_corr ) );
1356 7200 : move16();
1357 7200 : xfp[Lprot - i - 1] = mult_r( shl( prevsynth[Lprot - i - 1], *Q ), sub( w_hamm[i], window_corr ) );
1358 7200 : move16();
1359 7200 : window_corr = sub( window_corr, window_corr_step );
1360 : }
1361 : }
1362 : /* Spectrum */
1363 25 : fft3_fx( xfp, xfp, Lprot );
1364 : }
1365 : ELSE
1366 : {
1367 29 : IF( element_mode == EVS_MONO )
1368 : {
1369 : /* Apply hamming-rect window */
1370 0 : windowing_ROM_optimized( xfp, xfp, sinTblOffset, rectLength, hamm_len2 );
1371 : }
1372 : ELSE
1373 : {
1374 : // PMTE()
1375 29 : window_corr = w_hamm[0];
1376 29 : move16();
1377 29 : window_corr_step = idiv1616( w_hamm[0], hamm_len2 );
1378 5597 : FOR( i = 0; i < hamm_len2; i++ )
1379 : {
1380 5568 : xfp[i] = mult_r( shl( prevsynth[i], *Q ), sub( w_hamm[i], window_corr ) );
1381 5568 : move16();
1382 5568 : xfp[Lprot - i - 1] = mult_r( shl( prevsynth[Lprot - i - 1], *Q ), sub( w_hamm[i], window_corr ) );
1383 5568 : move16();
1384 5568 : window_corr = sub( window_corr, window_corr_step );
1385 : }
1386 : }
1387 : /* Spectrum */
1388 29 : r_fft_fx_lc( pFftTbl, Lprot, Lprot2, LprotLog2Minus1, xfp, xfp, 1 );
1389 : }
1390 :
1391 : /* Apply zeroing of non-coded FFT spectrum */
1392 54 : IF( GT_16( output_frame, inner_frame_tbl[bwidth_fx] ) )
1393 : {
1394 11 : stop_band_start = shl( 128, bwidth_fx );
1395 11 : stop_band_length = sub( Lprot, shl( stop_band_start, 1 ) );
1396 11 : stop_band_start = add( stop_band_start, 1 );
1397 11 : set16_fx( xfp + stop_band_start, 0, stop_band_length );
1398 : }
1399 :
1400 54 : pXfp = xfp;
1401 54 : pXsav = X_sav;
1402 :
1403 68150 : FOR( m = 0; m < Lprot; m++ )
1404 : {
1405 68096 : *pXsav++ = *pXfp++;
1406 68096 : move16();
1407 : }
1408 :
1409 : /* Magnitude representation */
1410 54 : fft_spec2_fx( xfp, magSq, Lprot );
1411 :
1412 : /* Compute xfp[m] = sqrt(magSq[m]) */
1413 54 : pXfp = xfp;
1414 54 : pMagSq = magSq;
1415 34156 : FOR( m = 0; m < Lprot2_1; m++ )
1416 : {
1417 34102 : IF( *pMagSq == 0 )
1418 : {
1419 5526 : *pXfp++ = extract_l( *pMagSq++ ); /* magSq[] is zero */
1420 5526 : move16();
1421 : }
1422 : ELSE
1423 : {
1424 28576 : expo = norm_l( *pMagSq ); /* exponent */
1425 28576 : man = extract_h( L_shl( *pMagSq++, expo ) ); /* mantissa */
1426 28576 : man = sqrt2ndOrder( man );
1427 28576 : expoBy2 = shr( expo, 1 ); /* Divided by 2-- square root operation. */
1428 28576 : IF( s_and( expo, 1 ) == 0 ) /* Check even or odd. */
1429 : {
1430 15599 : man = mult_r( man, FEC_HQ_ECU_ROOT2 ); /* FEC_HQ_ECU_ROOT2 is sqrt(2) in Q14 */
1431 15599 : expoBy2 = sub( expoBy2, 1 );
1432 : }
1433 28576 : *pXfp++ = shr_sat( man, expoBy2 );
1434 28576 : move16(); /* Denormalize the mantissa back to Q0. */
1435 : }
1436 : }
1437 :
1438 : /* Find maximum and minimum. */
1439 54 : maximum_fx( xfp, Lprot2_1, &Xmax );
1440 54 : minimum_fx( xfp, Lprot2_1, &Xmin );
1441 54 : IF( element_mode == EVS_MONO )
1442 : {
1443 0 : sel = mult_r( sub( Xmax, Xmin ), CMPLMNT_PFIND_SENS_FX );
1444 : }
1445 : ELSE
1446 : {
1447 54 : sel = mult_r( sub( Xmax, Xmin ), CMPLMNT_ST_PFIND_SENS_FX );
1448 : }
1449 54 : ivas_peakfinder_fx( xfp, Lprot2_1, plocs, num_plocs, sel, TRUE );
1450 :
1451 :
1452 : /* Currently not the pitch correlation but some LF correlation */
1453 54 : if ( element_mode != EVS_MONO && *num_plocs > 50 && pcorr < 19661 /* 0.6f in Q15 */ )
1454 : {
1455 0 : *num_plocs = 0;
1456 0 : move16();
1457 : }
1458 :
1459 54 : IF( element_mode == EVS_MONO )
1460 : {
1461 :
1462 : /* Refine peaks */
1463 0 : pPlocsi = plocsi;
1464 0 : pPlocs = plocs;
1465 0 : n = sub( *num_plocs, 1 ); /* -1 so as to exclude the very last peak. */
1466 : /* Special case-- The very 1st peak if it is at 0 index position */
1467 0 : IF( *pPlocs == 0 ) /* Only the very 1st peak is possible the peak at 0 index position. */
1468 : {
1469 0 : fraction = imax_fx( xfp, -1 ); /* -1 signifies special left edge case. */
1470 0 : acc = L_deposit_h( *pPlocs++ ); /* N.B., (*pPlocs) must be zero here. */
1471 0 : *pPlocsi++ = L_mac( acc, fraction, 1 );
1472 0 : move32(); /* in Q16 */
1473 0 : n = sub( n, 1 ); /* This special case is taken care of-- one less to go */
1474 : }
1475 : /* All peaks except the very last peak but including the very 1st one if it has not been taken care of. */
1476 0 : pXfp1 = xfp - 1;
1477 0 : FOR( m = 0; m < n; m++ ) /* Loop through up to the last but one peak. (The last one is excluded.) */
1478 : {
1479 0 : pXfp = pXfp1 + *pPlocs;
1480 0 : fraction = imax_fx( pXfp, 0 ); /* in Q15 */
1481 0 : acc = L_deposit_h( *pPlocs++ );
1482 0 : *pPlocsi++ = L_mac( acc, fraction, 1 );
1483 0 : move32(); /* in Q16. Append the fractional part to the integral part. */
1484 : }
1485 0 : IF( n >= 0 )
1486 : {
1487 : /* Special case-- The very last peak */
1488 0 : pXfp = pXfp1 + *pPlocs;
1489 0 : IF( EQ_16( *pPlocs, Lprot2 ) ) /* Only the very last peak is possible the peak at Lprot2 index position. */
1490 : {
1491 0 : pXfp--; /* Special case needs extra decrement */
1492 0 : special = 1; /* Signify special right edge case. */
1493 0 : move16();
1494 : }
1495 : ELSE
1496 : {
1497 0 : special = 0;
1498 0 : move16();
1499 : }
1500 0 : fraction = imax_fx( pXfp, special ); /* in Q15 */
1501 0 : acc = L_deposit_h( *pPlocs );
1502 0 : *pPlocsi = L_mac( acc, fraction, 1 );
1503 0 : move32(); /* in Q16. Append the fractional part to the integral part. */
1504 : }
1505 : }
1506 : ELSE
1507 : {
1508 54 : Lprot2 = shr( Lprot, 1 );
1509 54 : Lprot2_1 = add( Lprot2, 1 );
1510 :
1511 : /* Refine peaks */
1512 54 : pPlocsi = plocsi;
1513 54 : pPlocs = plocs;
1514 54 : n = *num_plocs; /* number of peaks to process */
1515 54 : move16();
1516 :
1517 : /* Special case-- The very 1st peak if it is at 0 index position (DC) */
1518 : /* With DELTA_CORR_F0_INT == 2 one needs to handle both *pPlocs==0 and *pPlocs==1 */
1519 : // IF( n > 0 && *pPlocs == 0 ) /* Very 1st peak position possible to have a peak at 0/DC index position. */
1520 54 : test();
1521 54 : IF( n > 0 && *pPlocs == 0 ) /* Very 1st peak position possible to have a peak at 0/DC index position. */
1522 : {
1523 0 : Copy_Scale_sig_16_32_no_sat( &xfp[*pPlocs], xfp_32, 3, Q15 ); // Q + 15
1524 0 : acc = L_deposit_h( *pPlocs ); // Q16
1525 0 : *pPlocsi++ = L_add( acc, L_shl( imax_pos_fx( xfp_32 ) /* Q15 */, 1 ) ); // Q16
1526 0 : move32();
1527 0 : pPlocs++;
1528 0 : n = sub( n, 1 );
1529 : }
1530 :
1531 54 : test();
1532 54 : IF( n > 0 && EQ_16( *pPlocs, 1 ) ) /* Also 2nd peak position uses DC which makes jacobsen unsuitable. */
1533 : {
1534 4 : Copy_Scale_sig_16_32_no_sat( &xfp[*pPlocs - 1], xfp_32, 3, Q15 ); // Q + 15
1535 4 : acc = L_deposit_h( sub( *pPlocs, 1 ) ); // Q16
1536 4 : *pPlocsi++ = L_add( acc, L_shl( imax_pos_fx( xfp_32 ) /* Q15 */, 1 ) ); // Q16
1537 4 : move32();
1538 4 : currPlocs = *pPlocs++; // Q16
1539 4 : move16();
1540 4 : n = sub( n, 1 );
1541 : }
1542 :
1543 : /* All remaining peaks except the very last two possible integer positions */
1544 54 : currPlocs = *pPlocs++;
1545 54 : move16();
1546 54 : endPlocs = sub( Lprot2_1, DELTA_CORR_F0_INT ); /* last *pPlocs position for Jacobsen */
1547 :
1548 : /* precompute number of turns based on endpoint integer location and make into a proper for loop */
1549 54 : IF( n > 0 )
1550 : {
1551 54 : nJacob = n;
1552 54 : move16();
1553 54 : if ( sub( endPlocs, plocs[*num_plocs - 1] ) <= 0 )
1554 : {
1555 0 : nJacob = sub( nJacob, 1 );
1556 : }
1557 :
1558 940 : FOR( k = 0; k < nJacob; k++ )
1559 : {
1560 886 : fraction = ivas_imax2_jacobsen_mag_fx( &( X_sav[currPlocs - 1] ), &( X_sav[Lprot - 1 - currPlocs] ) ); /* in Q15 */
1561 886 : acc = L_deposit_h( currPlocs ); // Q16
1562 886 : *pPlocsi++ = L_mac( acc, fraction, 1 ); // Q16
1563 886 : move32();
1564 886 : currPlocs = *pPlocs++; // Q16
1565 886 : move16();
1566 : }
1567 54 : n = sub( n, nJacob );
1568 : }
1569 :
1570 : /* At this point there should at most two plocs left to process */
1571 : /* the position before fs/2 and fs/2 both use the same magnitude points */
1572 54 : IF( n > 0 )
1573 : {
1574 : /* [ . . . . . . . ] Lprot/2+1 positions */
1575 : /* | | | */
1576 : /* 0 (Lprot/2-2) (Lprot/2) */
1577 :
1578 0 : IF( EQ_16( currPlocs, ( sub( Lprot2_1, DELTA_CORR_F0_INT ) ) ) ) /* Also 2nd last peak position uses fs/2 which makes jacobsen less suitable. */
1579 : {
1580 0 : Copy_Scale_sig_16_32_no_sat( &xfp[currPlocs - 1], xfp_32, 3, Q15 ); // Q + 15
1581 0 : acc = L_deposit_h( sub( currPlocs, 1 ) ); // Q16
1582 0 : *pPlocsi++ = L_add( acc, L_shl( imax_pos_fx( xfp_32 ) /* Q15 */, 1 ) ); // Q16
1583 0 : move32();
1584 0 : currPlocs = *pPlocs++; // Q16
1585 0 : move16();
1586 0 : n = sub( n, 1 );
1587 : }
1588 :
1589 : /* Here the only remaining point would be a fs/2 plocs */
1590 : /* pXfp = xfp + sub(Lprot2,1); already set just a reminder where it
1591 : * whould point */
1592 0 : IF( n > 0 ) /* fs/2 which makes special case . */
1593 : {
1594 0 : Copy_Scale_sig_16_32_no_sat( &xfp[currPlocs - 2], xfp_32, 3, Q15 ); // Q + 15
1595 0 : acc = L_deposit_h( sub( currPlocs, 2 ) ); // Q16
1596 0 : *pPlocsi++ = L_add( acc, L_shl( imax_pos_fx( xfp_32 ) /* Q15 */, 1 ) ); // Q16
1597 0 : move32();
1598 0 : currPlocs = *pPlocs++; // Q16
1599 0 : move16();
1600 0 : n = sub( n, 1 );
1601 : }
1602 : }
1603 :
1604 : /* For few peaks decide noise floor attenuation */
1605 54 : test();
1606 54 : IF( LT_16( *num_plocs, 3 ) && *num_plocs > 0 )
1607 : {
1608 3 : sig = L_add( sum16_32_fx( xfp, Lprot2_1 ), 1 );
1609 :
1610 : /*excluding peaks and neighboring bins*/
1611 9 : FOR( i = 0; i < *num_plocs; i++ )
1612 : {
1613 6 : st_point = s_max( 0, sub( plocs[i], DELTA_CORR ) );
1614 6 : end_point = s_min( sub( Lprot2_1, 1 ), add( plocs[i], DELTA_CORR ) );
1615 6 : set16_fx( &xfp[st_point], 0, extract_l( L_add( L_sub( end_point, st_point ), 1 ) ) );
1616 : }
1617 3 : noise = L_add( sum16_32_fx( xfp, Lprot2_1 ), 1 );
1618 :
1619 3 : IF( LT_32( noise, Mpy_32_32( 64424509 /* 0.03 in Q31 */, sig ) ) )
1620 : {
1621 0 : *noise_fac = 16384; /* 0.5f in Q15 */
1622 0 : move16();
1623 : }
1624 : ELSE
1625 : {
1626 3 : *noise_fac = 32767; /* 1.0f in Q15 */
1627 3 : move16();
1628 : }
1629 : }
1630 : }
1631 54 : }
1632 :
1633 0 : static void spec_ana_fx(
1634 : const Word16 *prevsynth, /* i : Input signal */
1635 : Word16 *plocs, /* o : The indicies of the identified peaks Q0 */
1636 : Word32 *plocsi, /* o : Interpolated positions of the identified peaks Q16 */
1637 : Word16 *num_plocs, /* o : Number of identified peaks Q0 */
1638 : Word16 *X_sav, /* o : Stored fft spectrum */
1639 : const Word16 output_frame, /* i : Frame length Q0 */
1640 : const Word16 bwidth_fx, /* i : Encoded bandwidth index Q0 */
1641 : Word16 *Q /* o : Q value of the fft spectrum */
1642 : )
1643 : {
1644 : Word16 Lprot, LprotLog2Minus1, hamm_len2, Lprot2, Lprot2_1, m, n;
1645 0 : const Word16 *pFftTbl = NULL;
1646 : Word16 xfp[L_PROT48k];
1647 : Word32 magSq[L_PROT48k / 2 + 1], *pMagSq;
1648 : Word16 *pXfp, *pXfp1, *pXsav, *pPlocs;
1649 : Word16 Xmax, Xmin, sel, man, expo, expoBy2;
1650 : Word16 sinTblOffset, rectLength, fraction, special;
1651 : Word32 *pPlocsi;
1652 : Word32 acc;
1653 : Word16 stop_band_start;
1654 : Word16 stop_band_length;
1655 :
1656 0 : LprotLog2Minus1 = 0;
1657 0 : hamm_len2 = 0;
1658 0 : move16(); // LprotLog2Minus1
1659 0 : move16(); // hamm_len2
1660 0 : Lprot = 512; /* 1536=(2*output_frame)*1024/1280; */
1661 0 : move16();
1662 :
1663 0 : sinTblOffset = 0;
1664 0 : move16();
1665 :
1666 0 : IF( EQ_16( output_frame, L_FRAME48k ) )
1667 : {
1668 0 : Lprot = L_PROT48k; /* 1536=(2*output_frame)*1024/1280; */
1669 0 : move16();
1670 0 : hamm_len2 = L_PROT_HAMM_LEN2_48k; /* half Hamming window = 288 */
1671 0 : move16();
1672 : }
1673 0 : ELSE IF( EQ_16( output_frame, L_FRAME32k ) )
1674 : {
1675 0 : Lprot = L_PROT32k; /* 1024 */
1676 0 : move16();
1677 0 : sinTblOffset = 4;
1678 0 : move16();
1679 0 : hamm_len2 = L_PROT_HAMM_LEN2_32k; /* half Hamming window = 192 */
1680 0 : move16();
1681 0 : pFftTbl = FFT_W512; /* Table for 1024-point real input FFT */
1682 0 : LprotLog2Minus1 = 9; /* FFT stages for complex input FFT */
1683 0 : move16();
1684 : }
1685 : ELSE
1686 : {
1687 0 : Lprot = 512;
1688 0 : move16();
1689 0 : sinTblOffset = 8;
1690 0 : move16();
1691 0 : hamm_len2 = L_PROT_HAMM_LEN2_16k; /* half Hamming window = 96 */
1692 0 : move16();
1693 0 : pFftTbl = FFT_W256; /* Table for 512-point real input FFT */
1694 0 : LprotLog2Minus1 = 8; /* FFT stages for complex input FFT */
1695 0 : move16();
1696 : }
1697 :
1698 0 : Lprot2 = shr( Lprot, 1 );
1699 0 : Lprot2_1 = add( Lprot2, 1 );
1700 0 : rectLength = sub( Lprot, shl( hamm_len2, 1 ) ); /* The length of the rectangular portion of the Hamming-Rectangular window. */
1701 :
1702 0 : *Q = s_max( 0, sub( Exp16Array( Lprot, prevsynth ), 1 ) );
1703 0 : move16();
1704 0 : Copy_Scale_sig( prevsynth, xfp, Lprot, *Q );
1705 :
1706 0 : IF( EQ_16( output_frame, L_FRAME48k ) )
1707 : {
1708 : /* Apply hamming-rect window */
1709 : {
1710 0 : windowing( xfp, xfp, w_hamm_sana48k_2_fx, rectLength, hamm_len2 );
1711 : }
1712 : /* Spectrum */
1713 0 : fft3_fx( xfp, xfp, Lprot );
1714 : }
1715 : ELSE
1716 : {
1717 : {
1718 : /* Apply hamming-rect window */
1719 0 : windowing_ROM_optimized( xfp, xfp, sinTblOffset, rectLength, hamm_len2 );
1720 : }
1721 : /* Spectrum */
1722 0 : r_fft_fx_lc( pFftTbl, Lprot, Lprot2, LprotLog2Minus1, xfp, xfp, 1 );
1723 : }
1724 :
1725 : /* Apply zeroing of non-coded FFT spectrum */
1726 0 : IF( GT_16( output_frame, inner_frame_tbl[bwidth_fx] ) )
1727 : {
1728 0 : stop_band_start = shl( 128, bwidth_fx );
1729 0 : stop_band_length = sub( Lprot, shl( stop_band_start, 1 ) );
1730 0 : stop_band_start = add( stop_band_start, 1 );
1731 0 : set16_fx( xfp + stop_band_start, 0, stop_band_length );
1732 : }
1733 :
1734 0 : pXfp = xfp;
1735 0 : pXsav = X_sav;
1736 0 : FOR( m = 0; m < Lprot; m++ )
1737 : {
1738 0 : *pXsav++ = *pXfp++;
1739 0 : move16();
1740 : }
1741 :
1742 : /* Magnitude representation */
1743 0 : fft_spec2_fx( xfp, magSq, Lprot );
1744 :
1745 : /* Compute xfp[m] = sqrt(magSq[m]) */
1746 0 : pXfp = xfp;
1747 0 : pMagSq = magSq;
1748 0 : FOR( m = 0; m < Lprot2_1; m++ )
1749 : {
1750 0 : IF( *pMagSq == 0 )
1751 : {
1752 0 : *pXfp++ = extract_l( *pMagSq++ ); /* magSq[] is zero */
1753 : }
1754 : ELSE
1755 : {
1756 0 : expo = norm_l( *pMagSq ); /* exponent */
1757 0 : man = extract_h( L_shl( *pMagSq++, expo ) ); /* mantissa */
1758 0 : man = sqrt2ndOrder( man );
1759 0 : expoBy2 = shr( expo, 1 ); /* Divided by 2-- square root operation. */
1760 0 : IF( s_and( expo, 1 ) == 0 ) /* Check even or odd. */
1761 : {
1762 0 : man = mult_r( man, FEC_HQ_ECU_ROOT2 ); /* FEC_HQ_ECU_ROOT2 is sqrt(2) in Q14 */
1763 0 : expoBy2 = sub( expoBy2, 1 );
1764 : }
1765 0 : *pXfp++ = shr_sat( man, expoBy2 );
1766 0 : move16(); /* Denormalize the mantissa back to Q0. */
1767 : }
1768 : }
1769 :
1770 : /* Find maximum and minimum. */
1771 0 : maximum_fx( xfp, Lprot2_1, &Xmax );
1772 0 : minimum_fx( xfp, Lprot2_1, &Xmin );
1773 : {
1774 0 : sel = mult_r( sub( Xmax, Xmin ), CMPLMNT_PFIND_SENS_FX );
1775 : }
1776 0 : peakfinder_fx( xfp, Lprot2_1, plocs, num_plocs, sel );
1777 :
1778 :
1779 : {
1780 :
1781 : /* Refine peaks */
1782 0 : pPlocsi = plocsi;
1783 0 : pPlocs = plocs;
1784 0 : n = sub( *num_plocs, 1 ); /* -1 so as to exclude the very last peak. */
1785 : /* Special case-- The very 1st peak if it is at 0 index position */
1786 0 : IF( *pPlocs == 0 ) /* Only the very 1st peak is possible the peak at 0 index position. */
1787 : {
1788 0 : fraction = imax_fx( xfp, -1 ); /* -1 signifies special left edge case. */
1789 0 : acc = L_deposit_h( *pPlocs++ ); /* N.B., (*pPlocs) must be zero here. */
1790 0 : *pPlocsi++ = L_mac( acc, fraction, 1 );
1791 0 : move32(); /* in Q16 */
1792 0 : n = sub( n, 1 ); /* This special case is taken care of-- one less to go */
1793 : }
1794 : /* All peaks except the very last peak but including the very 1st one if it has not been taken care of. */
1795 0 : pXfp1 = xfp - 1;
1796 0 : FOR( m = 0; m < n; m++ ) /* Loop through up to the last but one peak. (The last one is excluded.) */
1797 : {
1798 0 : pXfp = pXfp1 + *pPlocs;
1799 0 : fraction = imax_fx( pXfp, 0 ); /* in Q15 */
1800 0 : acc = L_deposit_h( *pPlocs++ );
1801 0 : *pPlocsi++ = L_mac( acc, fraction, 1 );
1802 0 : move32(); /* in Q16. Append the fractional part to the integral part. */
1803 : }
1804 0 : IF( n >= 0 )
1805 : {
1806 : /* Special case-- The very last peak */
1807 0 : pXfp = pXfp1 + *pPlocs;
1808 0 : IF( EQ_16( *pPlocs, Lprot2 ) ) /* Only the very last peak is possible the peak at Lprot2 index position. */
1809 : {
1810 0 : pXfp--; /* Special case needs extra decrement */
1811 0 : special = 1; /* Signify special right edge case. */
1812 0 : move16();
1813 : }
1814 : ELSE
1815 : {
1816 0 : special = 0;
1817 0 : move16();
1818 : }
1819 0 : fraction = imax_fx( pXfp, special ); /* in Q15 */
1820 0 : acc = L_deposit_h( *pPlocs );
1821 0 : *pPlocsi = L_mac( acc, fraction, 1 );
1822 0 : move32(); /* in Q16. Append the fractional part to the integral part. */
1823 : }
1824 : }
1825 0 : }
1826 :
1827 : /*-------------------------------------------------------------------*
1828 : * subst_spec_fx()
1829 : *
1830 : * Substitution spectrum calculation
1831 : *-------------------------------------------------------------------*/
1832 :
1833 132 : static void ivas_subst_spec_fx(
1834 : const Word16 *plocs, /* i : The indices of the identified peaks Q0 */
1835 : const Word32 *plocsi, /* i : Interpolated positions of the identified peaks Q16 */
1836 : Word16 *num_plocs, /* i/o : Number of identified peaks Q0 */
1837 : const Word16 time_offs, /* i : Time offset Q0 */
1838 : Word16 *X, /* i/o : FFT spectrum */
1839 : const Word16 *mag_chg, /* i : Magnitude modification Q15 */
1840 : const Word16 ph_dith, /* i : Phase dither, 2*PI is not included. (Q15, i.e., between 0.0 and 1.0) */
1841 : const Word16 *is_trans, /* i : Transient flags (either 0 or 1) */
1842 : const Word16 output_frame, /* i : Frame length Q0 */
1843 : Word16 *seed, /* i/o : Random seed */
1844 : const Word16 *alpha, /* i : Magnitude modification factors for fade to average Q15 */
1845 : const Word16 *beta, /* i : Magnitude modification factors for fade to average Q15 */
1846 : Word16 beta_mute, /* i : Factor for long-term mute Q15 */
1847 : const Word16 *Xavg, /* i : Frequency group averages to fade to Q0 */
1848 : const Word16 element_mode, /* i : IVAS element mode */
1849 : const Word16 ph_ecu_lookahead, /* i : Phase ECU lookahead */
1850 : const Word16 noise_fac /* i : noise factor Q15 */
1851 : )
1852 : {
1853 : Word16 Xph_short;
1854 : Word32 corr_phase[MAX_PLOCS], Xph;
1855 : Word32 *pCorrPhase;
1856 : Word16 cos_F, sin_F, tmp;
1857 : Word16 Lprot, m, i, e, im_ind, delta_corr_up, delta_corr_dn, delta_tmp;
1858 : Word32 tmp1;
1859 : Word16 j, re, im, *pReX, *pImX, lastPeak, lprotBy2Minus1, segmentLen;
1860 : Word16 pkLocation_1, pkLocation, pkLocation1;
1861 : const Word16 *pPlocs;
1862 : const Word32 *pPlocsi;
1863 : Word32 acc;
1864 : Word16 Lecu;
1865 : Word16 Lprot_inv;
1866 : Word16 k;
1867 : Word16 tmp2;
1868 : Word16 alpha_local;
1869 : Word16 beta_local;
1870 : Word16 expo;
1871 : Word16 one_peak_flag_mask;
1872 : Word16 mag_chg_local; /*for peak attenuation in burst */
1873 :
1874 132 : Lprot = 512;
1875 132 : move16();
1876 132 : Lprot_inv = 8192;
1877 132 : move16();
1878 132 : Lecu = shl( output_frame, 1 );
1879 :
1880 132 : IF( EQ_16( output_frame, L_FRAME48k ) )
1881 : {
1882 103 : Lprot = L_PROT48k; /* 1536=(2*output_frame)*1024/1280; */
1883 103 : move16();
1884 103 : Lprot_inv = 2731; /* Q22 */
1885 103 : move16();
1886 : }
1887 29 : ELSE IF( EQ_16( output_frame, L_FRAME32k ) )
1888 : {
1889 29 : Lprot = L_PROT32k; /* 1024 */
1890 29 : move16();
1891 29 : Lprot_inv = 4096; /* Q22 */
1892 29 : move16();
1893 : }
1894 : ELSE
1895 : {
1896 0 : Lprot = 512;
1897 0 : move16();
1898 0 : Lprot_inv = 8192; /* Q22 */
1899 0 : move16();
1900 : }
1901 :
1902 : /* Correction phase of the identified peaks */
1903 132 : IF( s_or( is_trans[0], is_trans[1] ) != 0 )
1904 : {
1905 4 : *num_plocs = 0;
1906 4 : move16();
1907 : }
1908 : ELSE
1909 : {
1910 : // tmp = NS2SA(output_frame*50,PH_ECU_ALDO_OLP2_NS-PH_ECU_LOOKAHEAD_NS);
1911 128 : tmp = NS2SA_FX2( L_mult0( output_frame, 50 ), PH_ECU_ALDO_OLP2_NS );
1912 128 : move16();
1913 128 : tmp = sub( tmp, ph_ecu_lookahead );
1914 128 : tmp = add( tmp, sub( Lecu, shr( sub( Lecu, Lprot ), 1 ) ) );
1915 128 : tmp = sub( tmp, shr( output_frame, 1 ) );
1916 128 : tmp1 = L_mac0( L_mult0( tmp, Lprot_inv ), time_offs, Lprot_inv ); /* Q22 */
1917 :
1918 128 : pPlocsi = plocsi;
1919 128 : pCorrPhase = corr_phase;
1920 5637 : FOR( m = 0; m < *num_plocs; m++ )
1921 : {
1922 5509 : acc = L_shl( Mpy_32_32( *pPlocsi++, tmp1 ), 9 ); /* 16+22+9-31 = 16*/
1923 5509 : *pCorrPhase++ = acc; /* in Q16. 2*PI is not included. */
1924 5509 : move32();
1925 : }
1926 : }
1927 132 : one_peak_flag_mask = 32767 /* 1.0f in Q15 */; /* all ones mask -> keep */
1928 132 : move16();
1929 132 : IF( element_mode != EVS_MONO )
1930 : {
1931 132 : test();
1932 132 : if ( ( *num_plocs > 0 ) && ( sub( *num_plocs, 3 ) < 0 ) )
1933 : {
1934 3 : one_peak_flag_mask = noise_fac; /* all zeroes mask -> zero */
1935 3 : move16();
1936 : }
1937 132 : IF( *num_plocs == 0 )
1938 : {
1939 4 : X[0] = 0; /* reset DC if there are no peaks */
1940 4 : move16();
1941 4 : X[Lprot / 2] = 0; /* also reset fs/2 if there are no peaks */
1942 4 : move16();
1943 : }
1944 : }
1945 132 : lprotBy2Minus1 = sub( shr( Lprot, 1 ), 1 );
1946 132 : i = 1;
1947 132 : move16();
1948 132 : k = 0;
1949 132 : move16();
1950 132 : im_ind = sub( Lprot, 1 );
1951 132 : move16();
1952 132 : pReX = X + i;
1953 132 : pImX = X + im_ind;
1954 132 : pPlocs = plocs;
1955 132 : pCorrPhase = corr_phase;
1956 132 : pkLocation = *pPlocs; /* N.B. No post-increment */
1957 132 : move16();
1958 132 : pkLocation1 = *pPlocs++;
1959 132 : move16();
1960 132 : lastPeak = sub( *num_plocs, 1 );
1961 5641 : FOR( m = 0; m < *num_plocs; m++ )
1962 : {
1963 5509 : delta_corr_dn = DELTA_CORR;
1964 5509 : move16();
1965 5509 : delta_corr_up = DELTA_CORR;
1966 5509 : move16();
1967 :
1968 5509 : pkLocation_1 = pkLocation; /* plocs[m - 1] */
1969 5509 : move16();
1970 5509 : pkLocation = pkLocation1; /* plocs[m] */
1971 5509 : move16();
1972 5509 : pkLocation1 = *pPlocs++; /* plocs[m + 1] */
1973 5509 : move16();
1974 5509 : IF( m > 0 )
1975 : {
1976 5381 : delta_tmp = shr( sub( sub( pkLocation, pkLocation_1 ), 1 ), 1 );
1977 5381 : if ( LT_16( delta_tmp, DELTA_CORR ) )
1978 : {
1979 4626 : delta_corr_dn = delta_tmp;
1980 4626 : move16();
1981 : }
1982 : }
1983 :
1984 5509 : IF( LT_16( m, lastPeak ) )
1985 : {
1986 5381 : delta_tmp = shr( sub( sub( pkLocation1, pkLocation ), 1 ), 1 );
1987 5381 : if ( LT_16( delta_tmp, DELTA_CORR ) )
1988 : {
1989 4626 : delta_corr_up = delta_tmp;
1990 4626 : move16();
1991 : }
1992 : }
1993 :
1994 : /* Input Xph */
1995 5509 : segmentLen = sub( sub( pkLocation, delta_corr_dn ), i );
1996 : /* i = add(i, segmentLen); */
1997 14047 : FOR( j = 0; j < segmentLen; j++ )
1998 : {
1999 8538 : *seed = rand_phase_fx( *seed, &sin_F, &cos_F );
2000 :
2001 8538 : re = *pReX;
2002 8538 : move16();
2003 8538 : im = *pImX;
2004 8538 : move16();
2005 8538 : IF( element_mode == EVS_MONO )
2006 : {
2007 0 : tmp = sub( mult_r( re, cos_F ), mult_r( im, sin_F ) );
2008 0 : im = add( mult_r( re, sin_F ), mult_r( im, cos_F ) );
2009 : }
2010 : ELSE
2011 : {
2012 8538 : tmp = mult_r( one_peak_flag_mask, sub( mult_r( re, cos_F ), mult_r( im, sin_F ) ) );
2013 8538 : im = mult_r( one_peak_flag_mask, add( mult_r( re, sin_F ), mult_r( im, cos_F ) ) );
2014 : }
2015 8538 : IF( LT_16( alpha[k], 32766 ) )
2016 : {
2017 5180 : *seed = rand_phase_fx( *seed, &sin_F, &cos_F );
2018 5180 : move16();
2019 5180 : tmp2 = mult_r( beta[k], Xavg[k] );
2020 5180 : *pReX++ = add( mult_r( alpha[k], tmp ), mult_r( tmp2, cos_F ) );
2021 5180 : move16();
2022 5180 : *pImX-- = add( mult_r( alpha[k], im ), mult_r( tmp2, sin_F ) );
2023 5180 : move16();
2024 : }
2025 : ELSE
2026 : {
2027 3358 : *pReX++ = mult_r( mag_chg[k], tmp );
2028 3358 : move16();
2029 3358 : *pImX-- = mult_r( mag_chg[k], im );
2030 3358 : move16();
2031 : }
2032 8538 : i = add( i, 1 );
2033 8538 : if ( GE_16( i, ivas_gwlpr[k + 1] ) )
2034 : {
2035 70 : k = add( k, 1 );
2036 : }
2037 : }
2038 :
2039 5509 : e = add( pkLocation, delta_corr_up );
2040 5509 : if ( GT_16( e, lprotBy2Minus1 ) )
2041 : {
2042 0 : e = lprotBy2Minus1;
2043 0 : move16();
2044 : }
2045 :
2046 5509 : Xph = *pCorrPhase;
2047 5509 : move32();
2048 5509 : Xph_short = s_and( extract_l( L_shr( Xph, 16 - 10 ) ), 0x3ff ); /* 10 bits precision after radix point */
2049 5509 : IF( GE_16( Xph_short, 512 ) )
2050 : {
2051 2761 : sin_F = negate( sincos_t_ext_fx[Xph_short - 512] );
2052 2761 : IF( LT_16( Xph_short, 768 ) )
2053 : {
2054 1405 : cos_F = negate( sincos_t_ext_fx[Xph_short - ( 512 - 256 )] );
2055 : }
2056 : ELSE
2057 : {
2058 1356 : cos_F = sincos_t_ext_fx[-Xph_short + ( 1024 + 256 )];
2059 1356 : move16();
2060 : }
2061 : }
2062 : ELSE
2063 : {
2064 2748 : sin_F = sincos_t_ext_fx[Xph_short];
2065 2748 : move16();
2066 2748 : IF( LT_16( Xph_short, 256 ) )
2067 : {
2068 1420 : cos_F = sincos_t_ext_fx[Xph_short + 256];
2069 1420 : move16();
2070 : }
2071 : ELSE
2072 : {
2073 1328 : cos_F = negate( sincos_t_ext_fx[-Xph_short + ( 256 + 512 )] );
2074 : }
2075 : }
2076 :
2077 5509 : segmentLen = add( sub( e, i ), 1 );
2078 : /* i = add(i, segmentLen); */
2079 40815 : FOR( j = 0; j < segmentLen; j++ )
2080 : {
2081 35306 : mag_chg_local = mag_chg[k];
2082 35306 : move16();
2083 35306 : IF( ph_dith != 0 )
2084 : {
2085 25812 : Xph = *pCorrPhase; /* in Q16. 2*PI is not included. */
2086 25812 : move32();
2087 25812 : Random( seed ); /* in Q0 */
2088 25812 : acc = L_mult( *seed, ph_dith ); /* N.B. ph_dith[i] is in Q15, i.e., in between 0 and 1.0 (2*PI not included) */
2089 25812 : acc = L_shr( acc, PHASE_DITH_SCALE_SHIFT );
2090 25812 : Xph = L_add( Xph, acc ); /* in Q16. */
2091 :
2092 25812 : IF( ph_dith > 0 ) /* up to 6 dB additional att of peaks in non_transient longer bursts, (when peak phase is randomized ) */
2093 : {
2094 : /* mag_chg_local *= 0.5 + (1.0 - ph_dith[i])/2 where 0.5~= sqrt((float)pow(10.0,-6/10.0)) and ph_dith=0..1.0--> scale=1.0 ...5 */
2095 25812 : mag_chg_local = mult_r( mag_chg_local, sub( 32767, shr( ph_dith, 1 ) ) );
2096 : }
2097 25812 : Xph_short = s_and( extract_l( L_shr( Xph, 16 - 10 ) ), 0x3ff );
2098 25812 : IF( GE_16( Xph_short, 512 ) )
2099 : {
2100 12722 : sin_F = negate( sincos_t_ext_fx[Xph_short - 512] );
2101 12722 : IF( LT_16( Xph_short, 768 ) )
2102 : {
2103 6328 : cos_F = negate( sincos_t_ext_fx[Xph_short - ( 512 - 256 )] );
2104 : }
2105 : ELSE
2106 : {
2107 6394 : cos_F = sincos_t_ext_fx[-Xph_short + ( 1024 + 256 )];
2108 6394 : move16();
2109 : }
2110 : }
2111 : ELSE
2112 : {
2113 13090 : sin_F = sincos_t_ext_fx[Xph_short];
2114 13090 : move16();
2115 13090 : IF( LT_16( Xph_short, 256 ) )
2116 : {
2117 6521 : cos_F = sincos_t_ext_fx[Xph_short + 256];
2118 6521 : move16();
2119 : }
2120 : ELSE
2121 : {
2122 6569 : cos_F = negate( sincos_t_ext_fx[-Xph_short + ( 256 + 512 )] );
2123 : }
2124 : }
2125 : }
2126 :
2127 35306 : re = *pReX;
2128 35306 : move16();
2129 35306 : im = *pImX;
2130 35306 : move16();
2131 35306 : tmp = sub_sat( mult_r( re, cos_F ), mult_r( im, sin_F ) );
2132 35306 : im = add( mult_r( re, sin_F ), mult_r( im, cos_F ) );
2133 35306 : IF( LT_16( alpha[k], 32766 ) )
2134 : {
2135 26529 : alpha_local = mag_chg_local;
2136 26529 : move16();
2137 :
2138 26529 : acc = L_sub( 1073741824L, L_mult0( alpha_local, alpha_local ) );
2139 26529 : acc = Sqrt_l( acc, &expo );
2140 26529 : expo = add( 30, add( 31, expo ) );
2141 26529 : if ( EQ_16( s_and( expo, 1 ), 1 ) )
2142 : {
2143 26529 : acc = Mult_32_16( acc, 23170 ); /* 1/sqrt(2) in Q15 */
2144 : }
2145 26529 : expo = shr( expo, 1 );
2146 26529 : beta_local = mult_r( beta_mute, round_fx( L_shl( acc, sub( 31, expo ) ) ) );
2147 :
2148 26529 : IF( GE_16( k, LGW32K - 1 ) )
2149 : {
2150 10138 : beta_local = mult_r( beta_local, 3277 ); /* 0.1 in Q15 */
2151 : }
2152 16391 : ELSE IF( GE_16( k, LGW16K - 1 ) )
2153 : {
2154 8325 : beta_local = mult_r( beta_local, 16384 ); /* 0.5 in Q15 */
2155 : }
2156 :
2157 26529 : *seed = rand_phase_fx( *seed, &sin_F, &cos_F );
2158 26529 : move16();
2159 26529 : tmp2 = mult_r( beta_local, Xavg[k] );
2160 26529 : *pReX++ = add( mult_r( alpha_local, tmp ), mult_r( tmp2, cos_F ) );
2161 26529 : move16();
2162 26529 : *pImX-- = add( mult_r( alpha_local, im ), mult_r( tmp2, sin_F ) );
2163 26529 : move16();
2164 : }
2165 : ELSE
2166 : {
2167 8777 : *pReX++ = mult_r( mag_chg_local, tmp );
2168 8777 : move16();
2169 8777 : *pImX-- = mult_r( mag_chg_local, im );
2170 8777 : move16();
2171 : }
2172 :
2173 35306 : i = add( i, 1 );
2174 35306 : if ( GE_16( i, ivas_gwlpr[k + 1] ) )
2175 : {
2176 637 : k = add( k, 1 );
2177 : }
2178 : }
2179 5509 : pCorrPhase++;
2180 : }
2181 :
2182 132 : segmentLen = sub( shr( Lprot, 1 ), i );
2183 50108 : FOR( j = 0; j < segmentLen; j++ )
2184 : {
2185 49976 : *seed = rand_phase_fx( *seed, &sin_F, &cos_F );
2186 49976 : move16();
2187 :
2188 49976 : re = *pReX;
2189 49976 : move16();
2190 49976 : im = *pImX;
2191 49976 : move16();
2192 :
2193 :
2194 49976 : IF( element_mode == EVS_MONO )
2195 : {
2196 0 : tmp = sub( mult_r( re, cos_F ), mult_r( im, sin_F ) );
2197 0 : im = add( mult_r( re, sin_F ), mult_r( im, cos_F ) );
2198 : }
2199 : ELSE
2200 : {
2201 49976 : tmp = mult_r( one_peak_flag_mask, sub( mult_r( re, cos_F ), mult_r( im, sin_F ) ) );
2202 49976 : im = mult_r( one_peak_flag_mask, add( mult_r( re, sin_F ), mult_r( im, cos_F ) ) );
2203 : }
2204 49976 : IF( LT_16( alpha[k], 32766 ) )
2205 : {
2206 25049 : *seed = rand_phase_fx( *seed, &sin_F, &cos_F );
2207 25049 : move16();
2208 25049 : tmp2 = mult_r( beta[k], Xavg[k] );
2209 25049 : *pReX++ = add( mult_r( alpha[k], tmp ), mult_r( tmp2, cos_F ) );
2210 25049 : move16();
2211 25049 : *pImX-- = add( mult_r( alpha[k], im ), mult_r( tmp2, sin_F ) );
2212 25049 : move16();
2213 : }
2214 : ELSE
2215 : {
2216 24927 : *pReX++ = mult_r( mag_chg[k], tmp );
2217 24927 : move16();
2218 24927 : *pImX-- = mult_r( mag_chg[k], im );
2219 24927 : move16();
2220 : }
2221 :
2222 49976 : i = add( i, 1 );
2223 49976 : if ( GE_16( i, ivas_gwlpr[k + 1] ) )
2224 : {
2225 320 : k = add( k, 1 );
2226 : }
2227 : }
2228 132 : }
2229 :
2230 0 : static void subst_spec_fx(
2231 : const Word16 *plocs, /* i : The indices of the identified peaks Q0 */
2232 : const Word32 *plocsi, /* i : Interpolated positions of the identified peaks Q16 */
2233 : Word16 *num_plocs, /* i/o : Number of identified peaks Q0 */
2234 : const Word16 time_offs, /* i : Time offset Q0 */
2235 : Word16 *X, /* i/o : FFT spectrum */
2236 : const Word16 *mag_chg, /* i : Magnitude modification Q15 */
2237 : const Word16 ph_dith, /* i : Phase dither, 2*PI is not included. (Q15, i.e., between 0.0 and 1.0) */
2238 : const Word16 *is_trans, /* i : Transient flags (either 0 or 1) */
2239 : const Word16 output_frame, /* i : Frame length Q0 */
2240 : Word16 *seed, /* i/o : Random seed */
2241 : const Word16 *alpha, /* i : Magnitude modification factors for fade to average Q15 */
2242 : const Word16 *beta, /* i : Magnitude modification factors for fade to average Q15 */
2243 : Word16 beta_mute, /* i : Factor for long-term mute Q15 */
2244 : const Word16 *Xavg /* i : Frequency group averages to fade to Q0 */
2245 : )
2246 : {
2247 : Word16 Xph_short;
2248 : Word32 corr_phase[MAX_PLOCS], Xph;
2249 : Word32 *pCorrPhase;
2250 : Word16 cos_F, sin_F, tmp;
2251 : Word16 Lprot, m, i, e, im_ind, delta_corr_up, delta_corr_dn, delta_tmp;
2252 : UWord16 lsb;
2253 : Word16 j, re, im, *pReX, *pImX, lastPeak, lprotBy2Minus1, segmentLen;
2254 : Word16 pkLocation_1, pkLocation, pkLocation1;
2255 : const Word16 *pPlocs;
2256 : const Word32 *pPlocsi;
2257 : Word32 acc;
2258 : Word16 Lecu;
2259 : Word16 Lprot_inv;
2260 : Word16 k;
2261 : Word16 tmp2;
2262 : Word16 alpha_local;
2263 : Word16 beta_local;
2264 : Word16 expo;
2265 : Word16 mag_chg_local; /*for peak attenuation in burst */
2266 :
2267 0 : Lprot = 512;
2268 0 : move16();
2269 0 : Lprot_inv = 8192;
2270 0 : move16();
2271 0 : Lecu = shl( output_frame, 1 );
2272 :
2273 0 : IF( EQ_16( output_frame, L_FRAME48k ) )
2274 : {
2275 0 : Lprot = L_PROT48k; /* 1536=(2*output_frame)*1024/1280; */
2276 0 : move16();
2277 0 : Lprot_inv = 2731; /* Q22 */
2278 0 : move16();
2279 : }
2280 0 : ELSE IF( EQ_16( output_frame, L_FRAME32k ) )
2281 : {
2282 0 : Lprot = L_PROT32k; /* 1024 */
2283 0 : move16();
2284 0 : Lprot_inv = 4096; /* Q22 */
2285 0 : move16();
2286 : }
2287 : ELSE
2288 : {
2289 0 : Lprot = 512;
2290 0 : move16();
2291 0 : Lprot_inv = 8192; /* Q22 */
2292 0 : move16();
2293 : }
2294 :
2295 : /* Correction phase of the identified peaks */
2296 0 : IF( s_or( is_trans[0], is_trans[1] ) != 0 )
2297 : {
2298 0 : *num_plocs = 0;
2299 0 : move16();
2300 : }
2301 : ELSE
2302 : {
2303 0 : tmp = NS2SA_FX2( L_mult0( output_frame, 50 ), PH_ECU_ALDO_OLP2_NS - PH_ECU_LOOKAHEAD_NS );
2304 0 : move16();
2305 0 : tmp = add( tmp, sub( Lecu, shr( sub( Lecu, Lprot ), 1 ) ) );
2306 0 : tmp = sub( tmp, shr( output_frame, 1 ) );
2307 0 : tmp = add( tmp, time_offs );
2308 0 : tmp = round_fx( L_shl( L_mult0( tmp, Lprot_inv ), 4 ) ); /* 0+22+4-16=10 */
2309 :
2310 0 : pPlocsi = plocsi;
2311 0 : pCorrPhase = corr_phase;
2312 0 : FOR( m = 0; m < *num_plocs; m++ )
2313 : {
2314 0 : Mpy_32_16_ss( *pPlocsi++, tmp, &acc, &lsb ); /* plocsi[] in Q16, tmp in Q10 and tmp does not include 2*PI. */
2315 0 : acc = L_add( L_shl( acc, 5 ), lshr( lsb, 11 ) );
2316 0 : *pCorrPhase++ = acc; /* in Q16. 2*PI is not included. */
2317 0 : move32();
2318 : }
2319 : }
2320 0 : lprotBy2Minus1 = sub( shr( Lprot, 1 ), 1 );
2321 0 : i = 1;
2322 0 : move16();
2323 0 : k = 0;
2324 0 : move16();
2325 0 : im_ind = sub( Lprot, 1 );
2326 0 : move16();
2327 0 : pReX = X + i;
2328 0 : pImX = X + im_ind;
2329 0 : pPlocs = plocs;
2330 0 : pCorrPhase = corr_phase;
2331 0 : pkLocation = *pPlocs; /* N.B. No post-increment */
2332 0 : move16();
2333 0 : pkLocation1 = *pPlocs++;
2334 0 : move16();
2335 0 : lastPeak = sub( *num_plocs, 1 );
2336 0 : FOR( m = 0; m < *num_plocs; m++ )
2337 : {
2338 0 : delta_corr_dn = DELTA_CORR;
2339 0 : move16();
2340 0 : delta_corr_up = DELTA_CORR;
2341 0 : move16();
2342 :
2343 0 : pkLocation_1 = pkLocation; /* plocs[m - 1] */
2344 0 : move16();
2345 0 : pkLocation = pkLocation1; /* plocs[m] */
2346 0 : move16();
2347 0 : pkLocation1 = *pPlocs++; /* plocs[m + 1] */
2348 0 : move16();
2349 0 : IF( m > 0 )
2350 : {
2351 0 : delta_tmp = shr( sub( sub( pkLocation, pkLocation_1 ), 1 ), 1 );
2352 0 : if ( LT_16( delta_tmp, DELTA_CORR ) )
2353 : {
2354 0 : delta_corr_dn = delta_tmp;
2355 0 : move16();
2356 : }
2357 : }
2358 :
2359 0 : IF( LT_16( m, lastPeak ) )
2360 : {
2361 0 : delta_tmp = shr( sub( sub( pkLocation1, pkLocation ), 1 ), 1 );
2362 0 : if ( LT_16( delta_tmp, DELTA_CORR ) )
2363 : {
2364 0 : delta_corr_up = delta_tmp;
2365 0 : move16();
2366 : }
2367 : }
2368 :
2369 : /* Input Xph */
2370 0 : segmentLen = sub( sub( pkLocation, delta_corr_dn ), i );
2371 : /* i = add(i, segmentLen); */
2372 0 : FOR( j = 0; j < segmentLen; j++ )
2373 : {
2374 0 : *seed = rand_phase_fx( *seed, &sin_F, &cos_F );
2375 :
2376 0 : re = *pReX;
2377 0 : move16();
2378 0 : im = *pImX;
2379 0 : move16();
2380 : {
2381 0 : tmp = sub( mult_r( re, cos_F ), mult_r( im, sin_F ) );
2382 0 : im = add( mult_r( re, sin_F ), mult_r( im, cos_F ) );
2383 : }
2384 0 : IF( LT_16( alpha[k], 32766 ) )
2385 : {
2386 0 : *seed = rand_phase_fx( *seed, &sin_F, &cos_F );
2387 0 : move16();
2388 0 : tmp2 = mult_r( beta[k], Xavg[k] );
2389 0 : *pReX++ = add( mult_r( alpha[k], tmp ), mult_r( tmp2, cos_F ) );
2390 0 : move16();
2391 0 : *pImX-- = add( mult_r( alpha[k], im ), mult_r( tmp2, sin_F ) );
2392 0 : move16();
2393 : }
2394 : ELSE
2395 : {
2396 0 : *pReX++ = mult_r( mag_chg[k], tmp );
2397 0 : move16();
2398 0 : *pImX-- = mult_r( mag_chg[k], im );
2399 0 : move16();
2400 : }
2401 0 : i = add( i, 1 );
2402 0 : if ( GE_16( i, ivas_gwlpr[k + 1] ) )
2403 : {
2404 0 : k = add( k, 1 );
2405 : }
2406 : }
2407 :
2408 0 : e = add( pkLocation, delta_corr_up );
2409 0 : if ( GT_16( e, lprotBy2Minus1 ) )
2410 : {
2411 0 : e = lprotBy2Minus1;
2412 0 : move16();
2413 : }
2414 :
2415 0 : Xph = *pCorrPhase;
2416 0 : move32();
2417 0 : Xph_short = s_and( extract_l( L_shr( Xph, 16 - 10 ) ), 0x3ff ); /* 10 bits precision after radix point */
2418 0 : IF( GE_16( Xph_short, 512 ) )
2419 : {
2420 0 : sin_F = negate( sincos_t_ext_fx[Xph_short - 512] );
2421 0 : IF( LT_16( Xph_short, 768 ) )
2422 : {
2423 0 : cos_F = negate( sincos_t_ext_fx[Xph_short - ( 512 - 256 )] );
2424 : }
2425 : ELSE
2426 : {
2427 0 : cos_F = sincos_t_ext_fx[-Xph_short + ( 1024 + 256 )];
2428 0 : move16();
2429 : }
2430 : }
2431 : ELSE
2432 : {
2433 0 : sin_F = sincos_t_ext_fx[Xph_short];
2434 0 : move16();
2435 0 : IF( LT_16( Xph_short, 256 ) )
2436 : {
2437 0 : cos_F = sincos_t_ext_fx[Xph_short + 256];
2438 0 : move16();
2439 : }
2440 : ELSE
2441 : {
2442 0 : cos_F = negate( sincos_t_ext_fx[-Xph_short + ( 256 + 512 )] );
2443 : }
2444 : }
2445 :
2446 0 : segmentLen = add( sub( e, i ), 1 );
2447 : /* i = add(i, segmentLen); */
2448 0 : FOR( j = 0; j < segmentLen; j++ )
2449 : {
2450 0 : mag_chg_local = mag_chg[k];
2451 0 : move16();
2452 0 : IF( ph_dith != 0 )
2453 : {
2454 0 : Xph = *pCorrPhase; /* in Q16. 2*PI is not included. */
2455 0 : move32();
2456 0 : Random( seed ); /* in Q0 */
2457 0 : acc = L_mult( *seed, ph_dith ); /* N.B. ph_dith[i] is in Q15, i.e., in between 0 and 1.0 (2*PI not included) */
2458 0 : acc = L_shr( acc, PHASE_DITH_SCALE_SHIFT );
2459 0 : Xph = L_add( Xph, acc ); /* in Q16. */
2460 :
2461 0 : IF( ph_dith > 0 ) /* up to 6 dB additional att of peaks in non_transient longer bursts, (when peak phase is randomized ) */
2462 : {
2463 : /* mag_chg_local *= 0.5 + (1.0 - ph_dith[i])/2 where 0.5~= sqrt((float)pow(10.0,-6/10.0)) and ph_dith=0..1.0--> scale=1.0 ...5 */
2464 0 : mag_chg_local = mult_r( mag_chg_local, sub( 32767, shr( ph_dith, 1 ) ) );
2465 : }
2466 0 : Xph_short = s_and( extract_l( L_shr( Xph, 16 - 10 ) ), 0x3ff );
2467 0 : IF( GE_16( Xph_short, 512 ) )
2468 : {
2469 0 : sin_F = negate( sincos_t_ext_fx[Xph_short - 512] );
2470 0 : IF( LT_16( Xph_short, 768 ) )
2471 : {
2472 0 : cos_F = negate( sincos_t_ext_fx[Xph_short - ( 512 - 256 )] );
2473 : }
2474 : ELSE
2475 : {
2476 0 : cos_F = sincos_t_ext_fx[-Xph_short + ( 1024 + 256 )];
2477 0 : move16();
2478 : }
2479 : }
2480 : ELSE
2481 : {
2482 0 : sin_F = sincos_t_ext_fx[Xph_short];
2483 0 : move16();
2484 0 : IF( LT_16( Xph_short, 256 ) )
2485 : {
2486 0 : cos_F = sincos_t_ext_fx[Xph_short + 256];
2487 0 : move16();
2488 : }
2489 : ELSE
2490 : {
2491 0 : cos_F = negate( sincos_t_ext_fx[-Xph_short + ( 256 + 512 )] );
2492 : }
2493 : }
2494 : }
2495 :
2496 0 : re = *pReX;
2497 0 : move16();
2498 0 : im = *pImX;
2499 0 : move16();
2500 : {
2501 0 : tmp = sub_sat( mult_r( re, cos_F ), mult_r( im, sin_F ) );
2502 0 : im = add_sat( mult_r( re, sin_F ), mult_r( im, cos_F ) );
2503 : }
2504 0 : IF( LT_16( alpha[k], 32766 ) )
2505 : {
2506 0 : alpha_local = mag_chg_local;
2507 0 : move16();
2508 :
2509 0 : acc = L_sub( 1073741824L, L_mult0( alpha_local, alpha_local ) );
2510 0 : acc = Sqrt_l( acc, &expo );
2511 0 : expo = add( 30, add( 31, expo ) );
2512 0 : if ( EQ_16( s_and( expo, 1 ), 1 ) )
2513 : {
2514 0 : acc = Mult_32_16( acc, 23170 ); /* 1/sqrt(2) in Q15 */
2515 : }
2516 0 : expo = shr( expo, 1 );
2517 0 : beta_local = mult_r( beta_mute, round_fx( L_shl( acc, sub( 31, expo ) ) ) );
2518 :
2519 0 : IF( GE_16( k, LGW32K - 1 ) )
2520 : {
2521 0 : beta_local = mult_r( beta_local, 3277 ); /* 0.1 in Q15 */
2522 : }
2523 0 : ELSE IF( GE_16( k, LGW16K - 1 ) )
2524 : {
2525 0 : beta_local = mult_r( beta_local, 16384 ); /* 0.5 in Q15 */
2526 : }
2527 :
2528 0 : *seed = rand_phase_fx( *seed, &sin_F, &cos_F );
2529 0 : move16();
2530 0 : tmp2 = mult_r( beta_local, Xavg[k] );
2531 0 : *pReX++ = add( mult_r( alpha_local, tmp ), mult_r( tmp2, cos_F ) );
2532 0 : move16();
2533 0 : *pImX-- = add( mult_r( alpha_local, im ), mult_r( tmp2, sin_F ) );
2534 0 : move16();
2535 : }
2536 : ELSE
2537 : {
2538 0 : *pReX++ = mult_r( mag_chg_local, tmp );
2539 0 : move16();
2540 0 : *pImX-- = mult_r( mag_chg_local, im );
2541 0 : move16();
2542 : }
2543 :
2544 0 : i = add( i, 1 );
2545 0 : if ( GE_16( i, ivas_gwlpr[k + 1] ) )
2546 : {
2547 0 : k = add( k, 1 );
2548 : }
2549 : }
2550 0 : pCorrPhase++;
2551 : }
2552 :
2553 0 : segmentLen = sub( shr( Lprot, 1 ), i );
2554 0 : FOR( j = 0; j < segmentLen; j++ )
2555 : {
2556 0 : *seed = rand_phase_fx( *seed, &sin_F, &cos_F );
2557 0 : move16();
2558 :
2559 0 : re = *pReX;
2560 0 : move16();
2561 0 : im = *pImX;
2562 0 : move16();
2563 0 : tmp = sub( mult_r( re, cos_F ), mult_r( im, sin_F ) );
2564 0 : im = add( mult_r( re, sin_F ), mult_r( im, cos_F ) );
2565 0 : IF( LT_16( alpha[k], 32766 ) )
2566 : {
2567 0 : *seed = rand_phase_fx( *seed, &sin_F, &cos_F );
2568 0 : move16();
2569 0 : tmp2 = mult_r( beta[k], Xavg[k] );
2570 0 : *pReX++ = add( mult_r( alpha[k], tmp ), mult_r( tmp2, cos_F ) );
2571 0 : move16();
2572 0 : *pImX-- = add( mult_r( alpha[k], im ), mult_r( tmp2, sin_F ) );
2573 0 : move16();
2574 : }
2575 : ELSE
2576 : {
2577 0 : *pReX++ = mult_r( mag_chg[k], tmp );
2578 0 : move16();
2579 0 : *pImX-- = mult_r( mag_chg[k], im );
2580 0 : move16();
2581 : }
2582 :
2583 0 : i = add( i, 1 );
2584 0 : if ( GE_16( i, ivas_gwlpr[k + 1] ) )
2585 : {
2586 0 : k = add( k, 1 );
2587 : }
2588 : }
2589 0 : }
2590 :
2591 : /*--------------------------------------------------------------------------
2592 : * rec_wtda()
2593 : *
2594 : * Windowing and TDA of reconstructed frame
2595 : *--------------------------------------------------------------------------*/
2596 :
2597 132 : static void ivas_rec_wtda_fx(
2598 : Word16 *X, /* i : FFT spectrum */
2599 : Word32 *ecu_rec, /* o : Reconstructed frame in tda domain */
2600 : const Word16 output_frame, /* i : Frame length */
2601 : const Word16 Lprot, /* i : Prototype frame length */
2602 : const Word16 old_dec[270], /* i : end of last decoded for OLA before tda and itda */
2603 : const Word16 element_mode, /* i : IVAS element mode */
2604 : const Word16 *num_p, /* i : Number of peaks Q0 */
2605 : const Word16 *plocs /* i : Peak locations Q0 */
2606 : )
2607 : {
2608 : Word16 timesh;
2609 : Word16 Qin;
2610 : Word16 xf_len;
2611 : Word16 i, idx;
2612 : Word16 *p_ecu;
2613 : Word16 g;
2614 : Word16 tbl_delta;
2615 : Word16 xsubst_[2 * L_FRAME48k];
2616 : const Word16 *w_hamm;
2617 : Word16 *pX_start, *pX_end;
2618 : Word16 tmp, tmp_e;
2619 : Word16 hamm_len2;
2620 : Word16 *pNew;
2621 : const Word16 *pOldW, *pNewW;
2622 : Word16 xfwin[NS2SA( L_FRAME48k * FRAMES_PER_SEC, N_ZERO_MDCT_NS - ( 2 * FRAME_SIZE_NS - L_PROT_NS ) / 2 )];
2623 : const Word16 *pOld;
2624 : Word16 copy_len;
2625 : Word16 ola_len;
2626 :
2627 132 : copy_len = NS2SA_FX2( L_mult0( output_frame, FRAMES_PER_SEC ), ( 2 * FRAME_SIZE_NS - L_PROT_NS ) / 2 ); /* prototype fill on each side of xsubst to fill MDCT Frame */
2628 132 : move16();
2629 132 : ola_len = NS2SA_FX2( L_mult0( output_frame, FRAMES_PER_SEC ), N_ZERO_MDCT_NS - ( 2 * FRAME_SIZE_NS - L_PROT_NS ) / 2 ); /* remaining lengt of LA_ZEROS to overlap add decoded with xsubst */
2630 132 : move16();
2631 :
2632 132 : xf_len = 26;
2633 132 : move16();
2634 132 : tbl_delta = 10082; /* Q12 */
2635 132 : move16();
2636 132 : IF( EQ_16( output_frame, L_FRAME48k ) )
2637 : {
2638 103 : w_hamm = w_hamm_sana48k_2_fx;
2639 103 : hamm_len2 = L_PROT_HAMM_LEN2_48k;
2640 103 : move16();
2641 103 : xf_len = 78;
2642 103 : move16();
2643 103 : tbl_delta = 3361; /* Q12 */
2644 103 : move16();
2645 : }
2646 29 : ELSE IF( EQ_16( output_frame, L_FRAME32k ) )
2647 : {
2648 29 : w_hamm = w_hamm_sana32k_2_fx;
2649 29 : hamm_len2 = L_PROT_HAMM_LEN2_32k;
2650 29 : move16();
2651 29 : xf_len = 52;
2652 29 : move16();
2653 29 : tbl_delta = 5041; /* Q12 */
2654 29 : move16();
2655 : }
2656 : ELSE
2657 : {
2658 0 : w_hamm = w_hamm_sana16k_2_fx;
2659 0 : hamm_len2 = L_PROT_HAMM_LEN2_16k;
2660 0 : move16();
2661 : }
2662 :
2663 132 : test();
2664 132 : test();
2665 132 : IF( element_mode != EVS_MONO && *num_p > 0 && GT_16( plocs[0], 3 ) )
2666 : {
2667 : /* Perform inverse windowing of hammrect */
2668 26 : pX_start = X;
2669 26 : pX_end = X + sub( Lprot, 1 );
2670 6074 : FOR( i = 0; i < hamm_len2; i++ )
2671 : {
2672 6048 : tmp_e = 0;
2673 6048 : tmp = BASOP_Util_Divide1616_Scale( ONE_IN_Q14, *w_hamm, &tmp_e );
2674 6048 : tmp = shl( tmp, 1 );
2675 6048 : tmp = shr( tmp, sub( 4, tmp_e ) ); // Q11
2676 6048 : *pX_start = shl_sat( mult_r( *pX_start, tmp ), 4 ); // Qin
2677 6048 : move16();
2678 6048 : *pX_end = shl_sat( mult_r( *pX_end, tmp ), 4 ); // Qin
2679 6048 : move16();
2680 6048 : pX_start++;
2681 6048 : pX_end--;
2682 6048 : w_hamm++;
2683 : }
2684 : }
2685 :
2686 : /* extract reconstructed frame with aldo window */
2687 132 : timesh = sub( NS2SA_FX2( L_mult0( output_frame, FRAMES_PER_SEC ), N_ZERO_MDCT_NS ), shr( sub( shl( output_frame, 1 ), Lprot ), 1 ) );
2688 :
2689 132 : set16_fx( xsubst_, 0, add( sub( shl( output_frame, 1 ), Lprot ), timesh ) );
2690 132 : Copy( X, xsubst_ + add( sub( shl( output_frame, 1 ), Lprot ), timesh ), sub( Lprot, timesh ) );
2691 :
2692 : /* Copy and OLA look ahead zero part of MDCT window from decoded signal */
2693 132 : IF( element_mode != EVS_MONO )
2694 : {
2695 132 : Copy( old_dec, xsubst_ + NS2SA_FX2( L_mult0( output_frame, FRAMES_PER_SEC ), N_ZERO_MDCT_NS ), copy_len ); /* also need to scale to Q0 ?? */
2696 132 : pOld = old_dec + copy_len;
2697 132 : pNew = xsubst_ + add( copy_len, NS2SA_FX2( L_mult0( output_frame, FRAMES_PER_SEC ), N_ZERO_MDCT_NS ) );
2698 132 : tmp = div_s( 1, shl( ola_len, 1 ) ); // Q15
2699 132 : tmp = round_fx( L_shl( L_mult( tmp, EVS_PI_FX ), 2 ) ); // Q15
2700 132 : sinq_fx( tmp, 0, ola_len, xfwin );
2701 132 : v_mult16_fixed( xfwin, xfwin, xfwin, ola_len ); /* xfwin = sin^2 of 0..pi/4 */
2702 132 : pOldW = xfwin + sub( ola_len, 1 );
2703 132 : pNewW = xfwin;
2704 9674 : FOR( i = 0; i < ola_len; i++ )
2705 : {
2706 9542 : *pNew = add( mult_r( *pOld, *pOldW ), mult_r( *pNew, *pNewW ) );
2707 9542 : move16();
2708 9542 : pOld += 1;
2709 9542 : pNew += 1;
2710 9542 : pOldW -= 1;
2711 9542 : pNewW += 1;
2712 : }
2713 : }
2714 : ELSE
2715 : {
2716 : /* Smoothen onset of ECU frame */
2717 0 : p_ecu = xsubst_ + add( sub( shl( output_frame, 1 ), Lprot ), timesh );
2718 0 : FOR( i = 0; i < xf_len; ( i++, p_ecu++ ) )
2719 : {
2720 0 : idx = extract_l( L_shr( L_mult0( i, tbl_delta ), 12 ) ); // Q0
2721 0 : g = sincos_t_fx[idx]; // Q15
2722 0 : move16();
2723 0 : g = mult( g, g ); // Q15
2724 0 : *p_ecu = mult( g, ( *p_ecu ) );
2725 0 : move16();
2726 0 : p_ecu++;
2727 : }
2728 : }
2729 :
2730 : /* Apply TDA and windowing to ECU frame */
2731 132 : Qin = 0;
2732 132 : move16();
2733 132 : wtda_fx( xsubst_ + output_frame, &Qin, ecu_rec, NULL, 0, ALDO_WINDOW, ALDO_WINDOW, /* window overlap of current frame (0: full, 2: none, or 3: half) */
2734 : output_frame );
2735 :
2736 132 : return;
2737 : }
2738 :
2739 0 : static void rec_wtda_fx(
2740 : Word16 *X, /* i : FFT spectrum */
2741 : Word32 *ecu_rec, /* o : Reconstructed frame in tda domain */
2742 : const Word16 output_frame, /* i : Frame length */
2743 : const Word16 Lprot, /* i : Prototype frame length */
2744 : const Word32 fs )
2745 : {
2746 : Word16 l, Lprot2, timesh;
2747 : Word16 rec_buf[3 * L_FRAME48k];
2748 : Word16 *xsubst_, *out_ptr;
2749 : Word16 Qin;
2750 : Word16 xf_len;
2751 : Word16 i, idx;
2752 : Word16 *p_ecu;
2753 : Word16 g;
2754 : Word16 tbl_delta;
2755 :
2756 : // PMTE()
2757 0 : xsubst_ = rec_buf + output_frame;
2758 0 : Lprot2 = shr( Lprot, 1 );
2759 :
2760 : /* Initialize to WB constants */
2761 0 : xf_len = 26;
2762 0 : move16();
2763 0 : tbl_delta = 10082; /* Q12 */
2764 0 : move16();
2765 0 : IF( EQ_16( output_frame, L_FRAME48k ) )
2766 : {
2767 0 : xf_len = 78;
2768 0 : move16();
2769 0 : tbl_delta = 3361; /* Q12 */
2770 0 : move16();
2771 : }
2772 0 : ELSE IF( EQ_16( output_frame, L_FRAME32k ) )
2773 : {
2774 0 : xf_len = 52;
2775 0 : move16();
2776 0 : tbl_delta = 5041; /* Q12 */
2777 0 : move16();
2778 : }
2779 :
2780 : /* extract reconstructed frame with aldo window */
2781 0 : l = sub( output_frame, Lprot2 );
2782 0 : set16_fx( xsubst_, 0, l );
2783 0 : Copy( X, xsubst_ + l, Lprot );
2784 0 : set16_fx( xsubst_ + add( output_frame, Lprot2 ), 0, l );
2785 :
2786 : /* Smoothen onset of ECU frame */
2787 0 : p_ecu = xsubst_ + sub( output_frame, Lprot2 );
2788 0 : FOR( i = 0; i < xf_len; i++ )
2789 : {
2790 0 : idx = extract_l( L_shr( L_mult0( i, tbl_delta ), 12 ) );
2791 0 : g = sincos_t_fx[idx];
2792 0 : move16();
2793 0 : g = mult( g, g );
2794 0 : *p_ecu = mult( g, ( *p_ecu ) );
2795 0 : move16();
2796 0 : p_ecu++;
2797 : }
2798 :
2799 0 : timesh = NS2SA_FX2( fs, 10000000L - PH_ECU_ALDO_OLP2_NS );
2800 0 : move16();
2801 :
2802 0 : set16_fx( rec_buf, 0, output_frame );
2803 0 : Qin = 0;
2804 0 : move16();
2805 0 : out_ptr = rec_buf + sub( shl( output_frame, 1 ), timesh );
2806 0 : wtda_fx( out_ptr, &Qin, ecu_rec, NULL, 0, ALDO_WINDOW, ALDO_WINDOW, /* window overlap of current frame (0: full, 2: none, or 3: half) */
2807 : output_frame );
2808 0 : return;
2809 : }
2810 :
2811 : /*--------------------------------------------------------------------------
2812 : * rec_frame_fx()
2813 : *
2814 : * Frame reconstruction
2815 : *--------------------------------------------------------------------------*/
2816 :
2817 132 : static void ivas_rec_frame_fx(
2818 : Word16 *X, /* i : FFT spectrum */
2819 : Word32 *ecu_rec, /* o : Reconstructed frame in tda domain */
2820 : const Word16 output_frame, /* i : Frame length */
2821 : const Word16 Q,
2822 : const Word16 *old_dec, /* i : end of last decoded for OLA before tda and itda */
2823 : const Word16 element_mode, /* i : IVAS element mode */
2824 : const Word16 *num_p, /* i : Number of peaks */
2825 : const Word16 *plocs /* i : Peak locations */
2826 : )
2827 : {
2828 : const Word16 *pFftTbl;
2829 : Word16 Lprot, lprotLog2Minus1;
2830 :
2831 : /* Initialize to WB constants */
2832 132 : Lprot = 512;
2833 132 : move16();
2834 132 : lprotLog2Minus1 = 9 - 1;
2835 132 : move16();
2836 132 : pFftTbl = FFT_W256; /* Table for 512-point real input FFT */
2837 132 : IF( EQ_16( output_frame, L_FRAME48k ) )
2838 : {
2839 103 : Lprot = L_PROT48k; /* 1536 = (2*output_frame)*1024/1280 */
2840 103 : move16();
2841 : }
2842 29 : ELSE IF( EQ_16( output_frame, L_FRAME32k ) )
2843 : {
2844 29 : Lprot = L_PROT32k; /* 1024 */
2845 29 : move16();
2846 29 : lprotLog2Minus1 = 10 - 1;
2847 29 : move16();
2848 29 : pFftTbl = FFT_W512; /* Table for 1024-point real input FFT */
2849 : }
2850 :
2851 : /* extend spectrum and IDFT */
2852 132 : IF( EQ_16( output_frame, L_FRAME48k ) )
2853 : {
2854 103 : ifft3_fx( X, X, Lprot );
2855 : }
2856 : ELSE
2857 : {
2858 29 : r_fft_fx_lc( pFftTbl, Lprot, shr( Lprot, 1 ), lprotLog2Minus1, X, X, 0 ); /* Inverse FFT */
2859 : }
2860 132 : Scale_sig( X, Lprot, -Q );
2861 :
2862 132 : ivas_rec_wtda_fx( X, ecu_rec, output_frame, Lprot, old_dec, element_mode, num_p, plocs );
2863 :
2864 132 : return;
2865 : }
2866 :
2867 0 : static void rec_frame_fx(
2868 : Word16 *X, /* i : FFT spectrum */
2869 : Word32 *ecu_rec, /* o : Reconstructed frame in tda domain */
2870 : const Word16 output_frame, /* i : Frame length */
2871 : const Word16 Q )
2872 : {
2873 : const Word16 *pFftTbl;
2874 : Word16 Lprot, lprotLog2Minus1;
2875 : Word32 fs;
2876 :
2877 0 : fs = L_mult0( output_frame, 50 );
2878 :
2879 : /* Initialize to WB constants */
2880 0 : Lprot = 512;
2881 0 : move16();
2882 0 : lprotLog2Minus1 = 9 - 1;
2883 0 : move16();
2884 0 : pFftTbl = FFT_W256; /* Table for 512-point real input FFT */
2885 0 : IF( EQ_16( output_frame, L_FRAME48k ) )
2886 : {
2887 0 : Lprot = L_PROT48k; /* 1536 = (2*output_frame)*1024/1280 */
2888 0 : move16();
2889 : }
2890 0 : ELSE IF( EQ_16( output_frame, L_FRAME32k ) )
2891 : {
2892 0 : Lprot = L_PROT32k; /* 1024 */
2893 0 : move16();
2894 0 : lprotLog2Minus1 = 10 - 1;
2895 0 : move16();
2896 0 : pFftTbl = FFT_W512; /* Table for 1024-point real input FFT */
2897 : }
2898 :
2899 : /* extend spectrum and IDFT */
2900 0 : IF( EQ_16( output_frame, L_FRAME48k ) )
2901 : {
2902 0 : ifft3_fx( X, X, Lprot );
2903 : }
2904 : ELSE
2905 : {
2906 0 : r_fft_fx_lc( pFftTbl, Lprot, shr( Lprot, 1 ), lprotLog2Minus1, X, X, 0 ); /* Inverse FFT */
2907 : }
2908 0 : Scale_sig( X, Lprot, -Q );
2909 :
2910 0 : rec_wtda_fx( X, ecu_rec, output_frame, Lprot, fs );
2911 :
2912 0 : return;
2913 : }
2914 :
2915 0 : static Word32 mult_32_32_q( const Word32 a, const Word32 b, const Word16 q )
2916 : {
2917 : Word32 hi;
2918 : UWord32 lo;
2919 0 : Mpy_32_32_ss( a, b, &hi, &lo );
2920 :
2921 0 : return L_or( L_shl_sat( hi, sub( 32 - 1, q ) ), L_lshr( (Word32) lo, add( q, 1 ) ) );
2922 : }
2923 :
2924 133 : static void fir_dwn_fx(
2925 : const Word16 x[], /* i : input vector Q(x_Q) */
2926 : const Word16 h[], /* i : impulse response of the FIR filter Q(h_Q) */
2927 : const Word16 h_Q, /* H's Q */
2928 : Word16 y[], /* o : output vector (result of filtering) Q~ */
2929 : const Word16 L, /* i : input vector size */
2930 : const Word16 K, /* i : order of the FIR filter (K+1 coefs.) */
2931 : const Word16 decimation /* i : decimation */
2932 : )
2933 : {
2934 : Word32 s;
2935 : Word16 i, j;
2936 : const Word16 *ptr_h, *ptr_x;
2937 : Word16 *ptr_y;
2938 : Word16 Kdiv2;
2939 : Word16 centering;
2940 : Word16 tmp;
2941 :
2942 133 : centering = sub( 16, h_Q );
2943 133 : Kdiv2 = shr( K, 1 );
2944 :
2945 133 : ptr_y = y;
2946 : /* do the filtering */
2947 798 : FOR( i = Kdiv2; i < K; i += decimation )
2948 : {
2949 665 : s = L_deposit_l( 0 );
2950 665 : ptr_h = h + 1;
2951 665 : ptr_x = x + sub( i, 1 );
2952 :
2953 26495 : FOR( j = 1; j <= i; j++ )
2954 : {
2955 25830 : s = L_mac0_sat( s, *ptr_h++, *ptr_x-- ); // Q(h_Q) + Q(x_q)
2956 : }
2957 :
2958 665 : *ptr_y++ = extract_h( L_shl_sat( s, centering ) );
2959 665 : move16();
2960 : }
2961 41363 : FOR( i = K; i < L; i += decimation )
2962 : {
2963 41230 : s = L_deposit_l( 0 );
2964 41230 : ptr_h = h + 1;
2965 41230 : ptr_x = x + sub( i, 1 );
2966 41230 : move16();
2967 :
2968 2329030 : FOR( j = 1; j <= K; j++ )
2969 : {
2970 2287800 : s = L_mac0_sat( s, *ptr_h++, *ptr_x-- ); // Q(h_Q) + Q(x_q)
2971 : }
2972 :
2973 41230 : *ptr_y++ = extract_h( L_shl_sat( s, centering ) );
2974 41230 : move16();
2975 : }
2976 133 : tmp = add( L, Kdiv2 );
2977 798 : FOR( i = i; i < tmp; i += decimation )
2978 : {
2979 665 : s = L_deposit_l( 0 );
2980 665 : ptr_h = h + add( sub( i, L ), 1 );
2981 665 : move16();
2982 665 : ptr_x = x + sub( L, 1 );
2983 665 : move16();
2984 :
2985 30185 : FOR( j = i - L + 1; j <= K; j++ )
2986 : {
2987 29520 : s = L_mac0_sat( s, *ptr_h++, *ptr_x-- );
2988 : }
2989 :
2990 665 : *ptr_y++ = extract_h( L_shl_sat( s, centering ) );
2991 665 : move16();
2992 : }
2993 :
2994 133 : return;
2995 : }
2996 :
2997 : /*--------------------------------------------------------------------------
2998 : * fec_ecu_pitch()
2999 : *
3000 : * Pitch/correlation analysis and adaptive analysis frame length calculation
3001 : *--------------------------------------------------------------------------*/
3002 :
3003 133 : static void fec_ecu_pitch_ivas_fx(
3004 : const Word16 *prevsynth_fx, /*Q15 16 */
3005 : Word16 *prevsynth_LP_fx, /* Q15 16 */
3006 : const Word16 L,
3007 : Word16 *N,
3008 : Word16 *min_corr_fx, /* Q15 16 */
3009 : Word16 *decimatefator,
3010 : const Word16 HqVoicing )
3011 : {
3012 :
3013 : Word16 i, filt_size;
3014 : Word16 QAsr, Ryy, cb_start, tmpQLP;
3015 : Word32 Ryytmp;
3016 : Word32 accA, accB, accBisqrt, accC, accCisqrt;
3017 : Word16 delay_ind, k;
3018 : const Word16 *Asr_LP_fx;
3019 : Word16 *ptr_LP, *ptr_LP2, *ptr_LP3, *ptr_LP4;
3020 : Word16 cb_end;
3021 : Word16 Lmul2, Lon20mul6, Lon20mul28, Lon20mul33, Lon20mul34;
3022 :
3023 :
3024 133 : SWITCH( L )
3025 : {
3026 103 : case L_FRAME48k:
3027 103 : *decimatefator = 6;
3028 103 : move16();
3029 103 : filt_size = 60;
3030 103 : move16();
3031 103 : Asr_LP_fx = Asr_LP48_fx;
3032 103 : QAsr = 17;
3033 103 : move16();
3034 103 : Lon20mul6 = 48;
3035 103 : move16();
3036 103 : Lon20mul28 = 224;
3037 103 : move16();
3038 103 : Lon20mul33 = 264;
3039 103 : move16();
3040 103 : Lon20mul34 = 272;
3041 103 : move16();
3042 103 : Lmul2 = 1920;
3043 103 : move16();
3044 103 : BREAK;
3045 :
3046 30 : case L_FRAME32k:
3047 30 : *decimatefator = 4;
3048 30 : move16();
3049 30 : filt_size = 40;
3050 30 : move16();
3051 30 : Asr_LP_fx = Asr_LP32_fx;
3052 30 : QAsr = 15;
3053 30 : move16();
3054 30 : Lon20mul6 = 48;
3055 30 : move16();
3056 30 : Lon20mul28 = 224;
3057 30 : move16();
3058 30 : Lon20mul33 = 264;
3059 30 : move16();
3060 30 : Lon20mul34 = 272;
3061 30 : move16();
3062 30 : Lmul2 = 1280;
3063 30 : move16();
3064 30 : BREAK;
3065 :
3066 0 : case L_FRAME16k:
3067 0 : *decimatefator = 2;
3068 0 : move16();
3069 0 : filt_size = 20;
3070 0 : move16();
3071 0 : Asr_LP_fx = Asr_LP16_fx;
3072 0 : QAsr = 15;
3073 0 : move16();
3074 0 : Lon20mul6 = 48;
3075 0 : move16();
3076 0 : Lon20mul28 = 224;
3077 0 : move16();
3078 0 : Lon20mul33 = 264;
3079 0 : move16();
3080 0 : Lon20mul34 = 272;
3081 0 : move16();
3082 0 : Lmul2 = 640;
3083 0 : move16();
3084 0 : BREAK;
3085 :
3086 0 : default:
3087 0 : *decimatefator = 2;
3088 0 : move16();
3089 0 : filt_size = 40;
3090 0 : move16();
3091 0 : Asr_LP_fx = Asr_LP16_fx;
3092 0 : QAsr = 15;
3093 0 : move16();
3094 0 : Lon20mul6 = 48;
3095 0 : move16();
3096 0 : Lon20mul28 = 224;
3097 0 : move16();
3098 0 : Lon20mul33 = 264;
3099 0 : move16();
3100 0 : Lon20mul34 = 272;
3101 0 : move16();
3102 0 : Lmul2 = 320;
3103 0 : move16();
3104 0 : BREAK;
3105 : }
3106 :
3107 :
3108 : /* Resampling to work at 8Khz */
3109 133 : fir_dwn_fx( prevsynth_fx, Asr_LP_fx, QAsr, prevsynth_LP_fx, Lmul2, filt_size, *decimatefator ); /* resampling without delay */
3110 :
3111 :
3112 133 : tmpQLP = Find_Max_Norm16( prevsynth_LP_fx, 320 );
3113 133 : Scale_sig( prevsynth_LP_fx, 320, sub( tmpQLP, 3 ) ); /* to avoid over scaling */
3114 :
3115 :
3116 : /* Correlation analysis */
3117 133 : *min_corr_fx = 0;
3118 133 : move16();
3119 133 : accC = L_deposit_l( 0 );
3120 :
3121 133 : ptr_LP = prevsynth_LP_fx + Lon20mul34;
3122 6517 : FOR( k = 0; k < Lon20mul6; k++ )
3123 : {
3124 6384 : accC = L_mac0( accC, *ptr_LP, *ptr_LP );
3125 6384 : ptr_LP++;
3126 : }
3127 :
3128 :
3129 133 : IF( EQ_16( HqVoicing, 1 ) )
3130 : {
3131 0 : cb_start = 0;
3132 0 : move16();
3133 0 : cb_end = Lon20mul33;
3134 0 : move16();
3135 : }
3136 : ELSE
3137 : {
3138 133 : cb_start = 0;
3139 133 : move16();
3140 133 : cb_end = Lon20mul28;
3141 133 : move16();
3142 : }
3143 :
3144 133 : accB = 0;
3145 133 : move16();
3146 133 : delay_ind = cb_start;
3147 133 : move16();
3148 :
3149 22002 : FOR( i = cb_start; i < cb_end; i++ ) /* cb_end = 35 let 6 ms min of loop size */
3150 : {
3151 21911 : accA = 0;
3152 21911 : move16();
3153 21911 : IF( EQ_16( i, cb_start ) )
3154 : {
3155 133 : accB = 0;
3156 133 : move16();
3157 133 : ptr_LP = prevsynth_LP_fx;
3158 133 : ptr_LP2 = prevsynth_LP_fx + Lon20mul34;
3159 6517 : FOR( k = 0; k < Lon20mul6; k++ )
3160 : {
3161 6384 : accA = L_mac0( accA, *ptr_LP, *ptr_LP2 );
3162 6384 : accB = L_mac0( accB, *ptr_LP, *ptr_LP );
3163 6384 : ptr_LP++;
3164 6384 : ptr_LP2++;
3165 : }
3166 : }
3167 : ELSE
3168 : {
3169 :
3170 :
3171 21778 : accB = L_mac0( L_msu0( accB, prevsynth_LP_fx[i - 1], prevsynth_LP_fx[i - 1] ), prevsynth_LP_fx[i + Lon20mul6 - 1], prevsynth_LP_fx[i + Lon20mul6 - 1] ); /* tmpQLP-5 */
3172 :
3173 :
3174 21778 : ptr_LP3 = prevsynth_LP_fx + i;
3175 21778 : ptr_LP4 = prevsynth_LP_fx + Lon20mul34;
3176 :
3177 1067122 : FOR( k = 0; k < Lon20mul6; k++ )
3178 : {
3179 1045344 : accA = L_mac0( accA, *ptr_LP3, *ptr_LP4 ); /*2* tmpQLP-5 */
3180 1045344 : ptr_LP3++;
3181 1045344 : ptr_LP4++;
3182 : }
3183 : }
3184 :
3185 : /*accB*/
3186 : /*accC*/
3187 : /*accA Q 6-2*tmpQLP*/
3188 :
3189 21911 : accBisqrt = Isqrt( accB ); /* Q31 - 3 + tmpQLP */
3190 21911 : accCisqrt = Isqrt( accC ); /* Q31 - 3 + tmpQLP*/
3191 :
3192 :
3193 21911 : Ryytmp = L_shl_sat( Mult_32_32( accA, accCisqrt ), Q15 ); /*Q 6 -2*tmpQLP + Q31 - 3 + tmpQLP -16 -3 +tmpQLP = Q15*/
3194 21911 : Ryy = extract_h( L_shl_sat( Mult_32_32( Ryytmp, accBisqrt ), 16 ) ); /*Q15 + Q31 - 3 + tmpQLP -15 + 3- tmpQLP = Q31*/
3195 :
3196 21911 : IF( GT_16( Ryy, *min_corr_fx ) )
3197 : {
3198 855 : *min_corr_fx = Ryy;
3199 855 : move16();
3200 855 : delay_ind = i;
3201 855 : move16();
3202 : }
3203 :
3204 21911 : test();
3205 21911 : IF( HqVoicing == 0 && GT_16( *min_corr_fx, 31130 ) )
3206 : {
3207 42 : BREAK;
3208 : }
3209 : }
3210 :
3211 133 : *N = sub( Lon20mul34, delay_ind );
3212 133 : move16();
3213 :
3214 133 : Scale_sig( prevsynth_LP_fx, 320, negate( sub( tmpQLP, 3 ) ) );
3215 133 : return;
3216 : }
3217 :
3218 0 : static void fec_ecu_pitch_fx(
3219 : const Word16 *prevsynth_fx, /*Q15 16 */
3220 : Word16 *prevsynth_LP_fx, /* Q15 16 */
3221 : const Word16 L,
3222 : Word16 *N,
3223 : Word16 *min_corr_fx, /* Q15 16 */
3224 : Word16 *decimatefator,
3225 : const Word16 HqVoicing )
3226 : {
3227 :
3228 : Word16 i, filt_size;
3229 : Word16 QAsr, Ryy, cb_start, tmpQLP;
3230 : Word32 Ryytmp;
3231 : Word32 accA, accB, accBisqrt, accC, accCisqrt;
3232 : Word16 delay_ind, k;
3233 : const Word16 *Asr_LP_fx;
3234 : Word16 *ptr_LP, *ptr_LP2, *ptr_LP3, *ptr_LP4;
3235 : Word16 cb_end;
3236 : Word16 Lmul2, Lon20mul6, Lon20mul28, Lon20mul33, Lon20mul34;
3237 :
3238 :
3239 0 : SWITCH( L )
3240 : {
3241 0 : case L_FRAME48k:
3242 0 : *decimatefator = 6;
3243 0 : move16();
3244 0 : filt_size = 60;
3245 0 : move16();
3246 0 : Asr_LP_fx = Asr_LP48_fx;
3247 0 : QAsr = 17;
3248 0 : move16();
3249 0 : Lon20mul6 = 48;
3250 0 : move16();
3251 0 : Lon20mul28 = 224;
3252 0 : move16();
3253 0 : Lon20mul33 = 264;
3254 0 : move16();
3255 0 : Lon20mul34 = 272;
3256 0 : move16();
3257 0 : Lmul2 = 1920;
3258 0 : move16();
3259 0 : BREAK;
3260 :
3261 0 : case L_FRAME32k:
3262 0 : *decimatefator = 4;
3263 0 : move16();
3264 0 : filt_size = 40;
3265 0 : move16();
3266 0 : Asr_LP_fx = Asr_LP32_fx;
3267 0 : QAsr = 15;
3268 0 : move16();
3269 0 : Lon20mul6 = 48;
3270 0 : move16();
3271 0 : Lon20mul28 = 224;
3272 0 : move16();
3273 0 : Lon20mul33 = 264;
3274 0 : move16();
3275 0 : Lon20mul34 = 272;
3276 0 : move16();
3277 0 : Lmul2 = 1280;
3278 0 : move16();
3279 0 : BREAK;
3280 :
3281 0 : case L_FRAME16k:
3282 0 : *decimatefator = 2;
3283 0 : move16();
3284 0 : filt_size = 20;
3285 0 : move16();
3286 0 : Asr_LP_fx = Asr_LP16_fx;
3287 0 : QAsr = 15;
3288 0 : move16();
3289 0 : Lon20mul6 = 48;
3290 0 : move16();
3291 0 : Lon20mul28 = 224;
3292 0 : move16();
3293 0 : Lon20mul33 = 264;
3294 0 : move16();
3295 0 : Lon20mul34 = 272;
3296 0 : move16();
3297 0 : Lmul2 = 640;
3298 0 : move16();
3299 0 : BREAK;
3300 :
3301 0 : default:
3302 0 : *decimatefator = 2;
3303 0 : move16();
3304 0 : filt_size = 40;
3305 0 : move16();
3306 0 : Asr_LP_fx = Asr_LP16_fx;
3307 0 : QAsr = 15;
3308 0 : move16();
3309 0 : Lon20mul6 = 48;
3310 0 : move16();
3311 0 : Lon20mul28 = 224;
3312 0 : move16();
3313 0 : Lon20mul33 = 264;
3314 0 : move16();
3315 0 : Lon20mul34 = 272;
3316 0 : move16();
3317 0 : Lmul2 = 320;
3318 0 : move16();
3319 0 : BREAK;
3320 : }
3321 :
3322 :
3323 : /* Resampling to work at 8Khz */
3324 0 : fir_dwn_fx( prevsynth_fx, Asr_LP_fx, QAsr, prevsynth_LP_fx, Lmul2, filt_size, *decimatefator ); /* resampling without delay */
3325 :
3326 :
3327 0 : tmpQLP = Find_Max_Norm16( prevsynth_LP_fx, 320 );
3328 0 : Scale_sig( prevsynth_LP_fx, 320, sub( tmpQLP, 3 ) ); /* to avoid over scaling */
3329 :
3330 :
3331 : /* Correlation analysis */
3332 0 : *min_corr_fx = 0;
3333 0 : move16();
3334 0 : accC = L_deposit_l( 0 );
3335 :
3336 0 : ptr_LP = prevsynth_LP_fx + Lon20mul34;
3337 0 : FOR( k = 0; k < Lon20mul6; k++ )
3338 : {
3339 0 : accC = L_mac0( accC, *ptr_LP, *ptr_LP );
3340 0 : ptr_LP++;
3341 : }
3342 :
3343 :
3344 0 : IF( EQ_16( HqVoicing, 1 ) )
3345 : {
3346 0 : cb_start = 0;
3347 0 : move16();
3348 0 : cb_end = Lon20mul33;
3349 0 : move16();
3350 : }
3351 : ELSE
3352 : {
3353 0 : cb_start = 0;
3354 0 : move16();
3355 0 : cb_end = Lon20mul28;
3356 0 : move16();
3357 : }
3358 :
3359 0 : accB = 0;
3360 0 : move16();
3361 0 : delay_ind = cb_start;
3362 0 : move16();
3363 :
3364 0 : FOR( i = cb_start; i < cb_end; i++ ) /* cb_end = 35 let 6 ms min of loop size */
3365 : {
3366 0 : accA = 0;
3367 0 : move16();
3368 0 : IF( EQ_16( i, cb_start ) )
3369 : {
3370 0 : accB = 0;
3371 0 : move16();
3372 0 : ptr_LP = prevsynth_LP_fx;
3373 0 : ptr_LP2 = prevsynth_LP_fx + Lon20mul34;
3374 0 : FOR( k = 0; k < Lon20mul6; k++ )
3375 : {
3376 0 : accA = L_mac0( accA, *ptr_LP, *ptr_LP2 );
3377 0 : accB = L_mac0( accB, *ptr_LP, *ptr_LP );
3378 0 : ptr_LP++;
3379 0 : ptr_LP2++;
3380 : }
3381 : }
3382 : ELSE
3383 : {
3384 :
3385 :
3386 0 : accB = L_mac0( L_msu0( accB, prevsynth_LP_fx[i - 1], prevsynth_LP_fx[i - 1] ), prevsynth_LP_fx[i + Lon20mul6 - 1], prevsynth_LP_fx[i + Lon20mul6 - 1] ); /* tmpQLP-5 */
3387 :
3388 :
3389 0 : ptr_LP3 = prevsynth_LP_fx + i;
3390 0 : ptr_LP4 = prevsynth_LP_fx + Lon20mul34;
3391 :
3392 0 : FOR( k = 0; k < Lon20mul6; k++ )
3393 : {
3394 0 : accA = L_mac0( accA, *ptr_LP3, *ptr_LP4 ); /*2* tmpQLP-5 */
3395 0 : ptr_LP3++;
3396 0 : ptr_LP4++;
3397 : }
3398 : }
3399 :
3400 : /*accB*/
3401 : /*accC*/
3402 : /*accA Q 6-2*tmpQLP*/
3403 :
3404 0 : accBisqrt = Isqrt( accB ); /* Q31 - 3 + tmpQLP */
3405 0 : accCisqrt = Isqrt( accC ); /* Q31 - 3 + tmpQLP*/
3406 :
3407 :
3408 0 : Ryytmp = mult_32_32_q( accA, accCisqrt, sub( 16 + 3, tmpQLP ) ); /*Q 6 -2*tmpQLP + Q31 - 3 + tmpQLP -16 -3 +tmpQLP = Q15*/
3409 0 : Ryytmp = mult_32_32_q( Ryytmp, accBisqrt, add( 15 - 3, tmpQLP ) ); /*Q15 + Q31 - 3 + tmpQLP -15 + 3- tmpQLP = Q31*/
3410 0 : Ryy = extract_h( Ryytmp ); /* Q15 */
3411 :
3412 :
3413 0 : IF( GT_16( Ryy, *min_corr_fx ) )
3414 : {
3415 0 : *min_corr_fx = Ryy;
3416 0 : move16();
3417 0 : delay_ind = i;
3418 0 : move16();
3419 : }
3420 :
3421 0 : test();
3422 0 : IF( HqVoicing == 0 && GT_16( *min_corr_fx, 31130 ) )
3423 : {
3424 0 : BREAK;
3425 : }
3426 : }
3427 :
3428 0 : *N = sub( Lon20mul34, delay_ind );
3429 0 : move16();
3430 :
3431 0 : Scale_sig( prevsynth_LP_fx, 320, negate( sub( tmpQLP, 3 ) ) );
3432 0 : return;
3433 : }
3434 :
3435 8 : static void sin_cos_est_fx( Word32 phi, Word16 *cosfreq, Word16 *sinfreq )
3436 : {
3437 :
3438 :
3439 : /* i phi : normalized frequency beteween 0 and Pi (nyquist) in Q30 */
3440 : /* o cosfreq & sinfreq : cos(phi) and sin (phi) in Q15 */
3441 :
3442 : Word16 i;
3443 : Word32 delta;
3444 : Word32 imin;
3445 : Word16 sinb, cosb;
3446 : Word32 sinv, cosv, tmp;
3447 :
3448 8 : i = 0;
3449 8 : move16();
3450 540 : FOR( imin = 0; imin < phi; imin += 4392264 )
3451 : {
3452 532 : i = add( i, 1 );
3453 : }
3454 :
3455 8 : delta = L_sub( phi, imin ); /*Q30 */
3456 8 : sinb = sincos_t_rad3_fx[i];
3457 8 : move16(); /*Q15 */
3458 8 : cosb = sincos_t_rad3_fx[384 - i];
3459 8 : move16(); /*Q15 */
3460 :
3461 : /*sinv = sin(phi) = sinb*cos(delta)+cosb*sin(delta) */
3462 : /*cosv = cos(phi) = cosb*cos(delta)-sinb*sin(delta) */
3463 : /*sin(delta) is approximated by delta for very small delta; cos(delta) is approximated by 1 */
3464 8 : tmp = L_shl( Mult_32_16( delta, cosb ), 1 ); /*Q31 */
3465 8 : sinv = L_add( L_deposit_h( sinb ), tmp );
3466 8 : tmp = L_shl( Mult_32_16( delta, sinb ), 1 ); /*Q31 */
3467 8 : cosv = L_sub_sat( L_deposit_h( cosb ), tmp );
3468 8 : *sinfreq = round_fx_sat( sinv );
3469 8 : move16();
3470 8 : *cosfreq = round_fx_sat( cosv );
3471 8 : move16();
3472 :
3473 8 : return;
3474 : }
3475 :
3476 32 : static Word16 abs_iter_fx( Word16 re /*Qx*/, Word16 im /*Qx*/, Word16 N )
3477 : {
3478 : Word16 A, tmp, L_tmp1, L_tmp2;
3479 : Word16 i, exp;
3480 :
3481 : /*const Word16 cor[10] = { 23170, 20724, 20106, 19950, 19911, 19902, 19899, 19899, 19899, 19898}; */
3482 :
3483 32 : exp = norm_s( re );
3484 32 : exp = s_min( exp, norm_s( im ) );
3485 32 : exp = sub( exp, 2 );
3486 :
3487 32 : re = shl( re, exp );
3488 32 : im = shl( im, exp );
3489 :
3490 :
3491 32 : IF( im < 0 )
3492 : {
3493 13 : im = negate( im );
3494 : }
3495 : ELSE
3496 : {
3497 19 : re = negate( re );
3498 : }
3499 32 : tmp = re;
3500 32 : move16();
3501 32 : re = im;
3502 32 : move16();
3503 32 : im = tmp;
3504 32 : move16();
3505 :
3506 :
3507 192 : FOR( i = 0; i < N; i++ )
3508 : {
3509 160 : L_tmp1 = shr( im, i );
3510 160 : L_tmp2 = shr( re, i );
3511 160 : IF( im < 0 )
3512 : {
3513 83 : L_tmp1 = negate( L_tmp1 );
3514 : }
3515 : ELSE
3516 : {
3517 77 : L_tmp2 = negate( L_tmp2 );
3518 : }
3519 160 : re = add( re, L_tmp1 );
3520 160 : im = add( im, L_tmp2 );
3521 : }
3522 32 : i = s_min( sub( i, 1 ), 9 );
3523 32 : tmp = abs_s( re );
3524 : /*A = round_fx(L_shr(L_mult(tmp, cor[i]), exp)); //this can be ommited, if we don't need the exact abs value */
3525 32 : A = shr_sat( tmp, exp );
3526 32 : return A;
3527 : }
3528 : /*--------------------------------------------------------------------------
3529 : * fec_ecu_dft()
3530 : *
3531 : * DFT analysis on adaptive frame length. Analysis frame stretched to
3532 : * next power of 2 using linear interpolation.
3533 : *--------------------------------------------------------------------------*/
3534 :
3535 1 : static void ivas_fec_ecu_dft_fx(
3536 : const Word16 *prevsynth_LP, /*Qin */
3537 : const Word16 N,
3538 : Word16 *Tfr, /*Qout */
3539 : Word16 *Tfi, /*Qout */
3540 : Word32 *sum_Tf_abs, /*Qout; */
3541 : Word16 *Tf_abs, /*Qout */
3542 : Word16 *Nfft,
3543 : Word16 *exp, /*Qout = Qin+exp */
3544 : const Word16 element_mode /* i : IVAS element mode */
3545 : )
3546 : {
3547 : Word32 L_tmp, Tmp, Tfr32[512], Tfi32[512], fac, *Pt1, *Pt2;
3548 : Word16 i, tmp, tmp_short, N_LP, target[2 * L_FRAME48k], Tfr16[FEC_FFT_MAX_SIZE], *pt1, *pt2, *pt3, Lon20;
3549 : Word16 tmp_loop;
3550 : Word16 alignment_point;
3551 :
3552 1 : Lon20 = 8;
3553 1 : move16();
3554 1 : IF( element_mode == EVS_MONO )
3555 : {
3556 0 : alignment_point = sub( shl( 160, 1 ), i_mult( 3, Lon20 ) );
3557 : }
3558 : ELSE
3559 : {
3560 1 : alignment_point = shl( 160, 1 );
3561 : }
3562 1 : tmp = sub( alignment_point, N );
3563 1 : Copy( &prevsynth_LP[tmp], target, N );
3564 :
3565 : /* DFT */
3566 :
3567 1 : L_tmp = L_deposit_l( N );
3568 10 : FOR( tmp = 0; L_tmp <= 16384; tmp++ )
3569 : {
3570 9 : L_tmp = L_shl( L_tmp, 1 );
3571 : }
3572 1 : *Nfft = shl( 1, sub( 15, tmp ) );
3573 1 : move16();
3574 :
3575 1 : set32_fx( Tfr32, 0, *Nfft );
3576 1 : set32_fx( Tfi32, 0, *Nfft );
3577 1 : Tfr16[0] = target[0];
3578 1 : move16();
3579 1 : Tfr16[*Nfft - 1] = target[N - 1];
3580 1 : move16();
3581 :
3582 1 : IF( EQ_16( *Nfft, N ) )
3583 : {
3584 0 : Copy( &target[1], &Tfr16[1], sub( *Nfft, 2 ) );
3585 : }
3586 : ELSE
3587 : {
3588 :
3589 1 : tmp = div_s( sub( N, 1 ), sub( *Nfft, 1 ) );
3590 1 : Tmp = L_deposit_l( tmp );
3591 1 : fac = L_add( Tmp, 0 );
3592 1 : tmp_loop = sub( *Nfft, 1 );
3593 63 : FOR( i = 1; i < tmp_loop; i++ ) /* interpolation for FFT */
3594 : {
3595 62 : tmp_short = extract_l( L_shr( Tmp, 15 ) );
3596 62 : tmp = extract_l( L_msu( Tmp, tmp_short, 16384 ) );
3597 62 : L_tmp = L_mult( sub_sat( target[tmp_short + 1], target[tmp_short] ), tmp ); /*Qin+16 */
3598 62 : Tfr16[i] = add_sat( target[tmp_short], round_fx_sat( L_tmp ) );
3599 62 : move16(); /*Qin */
3600 62 : Tmp = L_add( Tmp, fac );
3601 : }
3602 : }
3603 :
3604 :
3605 : /*to avoid overflow in DoRTFTn_fx() */
3606 1 : tmp = Exp16Array( *Nfft, Tfr16 );
3607 1 : *exp = add( tmp, add( 2, norm_s( *Nfft ) ) );
3608 1 : move16();
3609 1 : Copy_Scale_sig_16_32_no_sat( Tfr16, Tfr32, *Nfft, *exp ); /*Qin+exp; */
3610 1 : *exp = s_min( *exp, 15 );
3611 :
3612 1 : DoRTFTn_fx( Tfr32, Tfi32, *Nfft );
3613 1 : N_LP = shr( *Nfft, 1 );
3614 :
3615 :
3616 1 : L_tmp = L_deposit_l( 0 );
3617 :
3618 1 : pt1 = Tfr;
3619 1 : pt2 = Tfi;
3620 1 : pt3 = Tf_abs;
3621 1 : Pt1 = Tfr32;
3622 1 : Pt2 = Tfi32;
3623 33 : FOR( i = 0; i < N_LP; i++ )
3624 : {
3625 32 : *pt1 = extract_h( *Pt1 ); /*Qin+exp-16 */
3626 32 : move16();
3627 32 : *pt2 = extract_h( *Pt2 ); /*Qin+exp-16 */
3628 32 : move16();
3629 32 : *pt3 = abs_iter_fx( Tfr[i], Tfi[i], 5 );
3630 32 : move16(); /*Qin+exp-16 */
3631 32 : L_tmp = L_mac0( L_tmp, *pt3, 1 ); /*Qin+exp-16 */
3632 32 : pt1++;
3633 32 : pt2++;
3634 32 : pt3++;
3635 32 : Pt1++;
3636 32 : Pt2++;
3637 : }
3638 1 : *sum_Tf_abs = L_tmp;
3639 1 : move32();
3640 1 : *exp = sub( *exp, 16 );
3641 1 : move16();
3642 1 : return;
3643 : }
3644 :
3645 0 : static void fec_ecu_dft_fx(
3646 : const Word16 *prevsynth_LP, /*Qin */
3647 : const Word16 N,
3648 : Word16 *Tfr, /*Qout */
3649 : Word16 *Tfi, /*Qout */
3650 : Word32 *sum_Tf_abs, /*Qout; */
3651 : Word16 *Tf_abs, /*Qout */
3652 : Word16 *Nfft,
3653 : Word16 *exp /*Qout = Qin+exp */
3654 : )
3655 : {
3656 : Word32 L_tmp, Tmp, Tfr32[512], Tfi32[512], fac, *Pt1, *Pt2;
3657 : Word16 i, tmp, tmp_short, N_LP, target[2 * L_FRAME48k], Tfr16[FEC_FFT_MAX_SIZE], *pt1, *pt2, *pt3;
3658 : Word16 tmp_loop;
3659 0 : tmp = sub( 296, N );
3660 0 : Copy( &prevsynth_LP[tmp], target, N );
3661 :
3662 :
3663 : /* DFT */
3664 :
3665 0 : L_tmp = L_deposit_l( N );
3666 0 : FOR( tmp = 0; L_tmp <= 16384; tmp++ )
3667 : {
3668 0 : L_tmp = L_shl( L_tmp, 1 );
3669 : }
3670 0 : *Nfft = shl( 1, sub( 15, tmp ) );
3671 0 : move16();
3672 :
3673 :
3674 0 : set32_fx( Tfr32, 0, *Nfft );
3675 0 : set32_fx( Tfi32, 0, *Nfft );
3676 0 : Tfr16[0] = target[0];
3677 0 : move16();
3678 0 : Tfr16[*Nfft - 1] = target[N - 1];
3679 0 : move16();
3680 :
3681 0 : IF( EQ_16( *Nfft, N ) )
3682 : {
3683 0 : Copy( &target[1], &Tfr16[1], sub( *Nfft, 2 ) );
3684 : }
3685 : ELSE
3686 : {
3687 :
3688 0 : tmp = div_s( sub( N, 1 ), sub( *Nfft, 1 ) );
3689 0 : Tmp = L_deposit_l( tmp );
3690 0 : fac = L_add( Tmp, 0 );
3691 0 : tmp_loop = sub( *Nfft, 1 );
3692 0 : FOR( i = 1; i < tmp_loop; i++ ) /* interpolation for FFT */
3693 : {
3694 0 : tmp_short = extract_l( L_shr( Tmp, 15 ) );
3695 0 : tmp = extract_l( L_msu( Tmp, tmp_short, 16384 ) );
3696 0 : L_tmp = L_mult( sub_sat( target[tmp_short + 1], target[tmp_short] ), tmp ); /*Qin+16 */
3697 0 : Tfr16[i] = add_sat( target[tmp_short], round_fx_sat( L_tmp ) );
3698 0 : move16(); /*Qin */
3699 0 : Tmp = L_add( Tmp, fac );
3700 : }
3701 : }
3702 :
3703 :
3704 : /*to avoid overflow in DoRTFTn_fx() */
3705 0 : tmp = Exp16Array( *Nfft, Tfr16 );
3706 0 : *exp = add( tmp, add( 2, norm_s( *Nfft ) ) );
3707 0 : move16();
3708 : {
3709 0 : Word16 loctmp = *exp;
3710 0 : move16();
3711 0 : loctmp = s_min( 15, loctmp );
3712 0 : Copy_Scale_sig_16_32_DEPREC( Tfr16, Tfr32, *Nfft, loctmp ); /*Qin+exp; */ /*Even with limiting loctmp, if Copy_Scale_sig_16_32_no_sat() is used, can lead to 1 difference */
3713 : }
3714 :
3715 0 : DoRTFTn_fx( Tfr32, Tfi32, *Nfft );
3716 0 : N_LP = shr( *Nfft, 1 );
3717 :
3718 :
3719 0 : L_tmp = L_deposit_l( 0 );
3720 :
3721 0 : pt1 = Tfr;
3722 0 : pt2 = Tfi;
3723 0 : pt3 = Tf_abs;
3724 0 : Pt1 = Tfr32;
3725 0 : Pt2 = Tfi32;
3726 0 : FOR( i = 0; i < N_LP; i++ )
3727 : {
3728 0 : *pt1 = extract_h( *Pt1 ); /*Qin+exp-16 */
3729 0 : move16();
3730 0 : *pt2 = extract_h( *Pt2 ); /*Qin+exp-16 */
3731 0 : move16();
3732 0 : *pt3 = abs_iter_fx( Tfr[i], Tfi[i], 5 );
3733 0 : move16(); /*Qin+exp-16 */
3734 0 : L_tmp = L_mac0( L_tmp, *pt3, 1 ); /*Qin+exp-16 */
3735 0 : pt1++;
3736 0 : pt2++;
3737 0 : pt3++;
3738 0 : Pt1++;
3739 0 : Pt2++;
3740 : }
3741 0 : *sum_Tf_abs = L_tmp;
3742 0 : move32();
3743 0 : *exp = sub( *exp, 16 );
3744 0 : move16();
3745 0 : return;
3746 : }
3747 :
3748 8 : static void singenerator_fx(
3749 : const Word16 L, /* i : size of output */
3750 : const Word16 cosfreq, /* i : cosine of 1-sample dephasing at the given frequency Q15*/
3751 : const Word16 sinfreq, /* i : sine of 1-sample dephasing at the given frequency Q15*/
3752 : const Word16 a_re,
3753 : /* i : real part of complex spectral coefficient at the given frequency */ /*Qin */
3754 : const Word16 a_im,
3755 : /* i : imag part of complex spectral coefficient at the given frequency */ /*Qin */
3756 : Word32 xx[] /* o : output vector */ /*Qin+16 */
3757 : )
3758 : {
3759 :
3760 : Word32 *ptr, L_C0, L_S0, L_C1, L_S1;
3761 : Word16 C0, S0, C1, S1;
3762 : Word16 i;
3763 :
3764 8 : L_S0 = L_deposit_l( 0 ); /*prevent warning*/
3765 8 : L_C0 = L_deposit_h( a_re ); /*Qin+16 */
3766 8 : S0 = a_im;
3767 8 : move16();
3768 :
3769 8 : ptr = xx;
3770 :
3771 8 : *ptr = L_add_sat( *ptr, L_C0 );
3772 8 : move32();
3773 8 : ptr++;
3774 :
3775 5120 : FOR( i = 0; i < L / 2 - 1; i++ )
3776 : {
3777 5112 : C0 = extract_h( L_C0 ); /*Qin */
3778 5112 : L_C1 = L_mult( C0, cosfreq ); /*Qin+16 */
3779 5112 : L_C1 = L_msu( L_C1, S0, sinfreq ); /*Qin+16 */
3780 5112 : L_S1 = L_mult( C0, sinfreq );
3781 5112 : S1 = mac_r( L_S1, S0, cosfreq );
3782 5112 : *ptr = L_add_sat( *ptr, L_C1 );
3783 5112 : move32(); /*Qin+16 */
3784 5112 : ptr++;
3785 :
3786 5112 : C1 = extract_h( L_C1 );
3787 5112 : L_C0 = L_mult( C1, cosfreq );
3788 5112 : L_C0 = L_msu( L_C0, S1, sinfreq );
3789 5112 : L_S0 = L_mult( C1, sinfreq );
3790 5112 : S0 = mac_r( L_S0, S1, cosfreq );
3791 5112 : *ptr = L_add_sat( *ptr, L_C0 );
3792 5112 : move32();
3793 5112 : ptr++;
3794 : }
3795 :
3796 8 : C0 = extract_h( L_C0 );
3797 8 : S0 = extract_h( L_S0 );
3798 8 : L_C1 = L_mult( C0, cosfreq );
3799 8 : L_C1 = L_msu( L_C1, S0, sinfreq );
3800 8 : *ptr = L_add_sat( *ptr, L_C1 );
3801 8 : move32();
3802 8 : ptr++;
3803 :
3804 8 : return;
3805 : }
3806 :
3807 1 : static void sinusoidal_synthesis_fx(
3808 : const Word16 *Tfr, /*Qin */
3809 : const Word16 *Tfi, /*Qin */
3810 : Word16 *Tf_abs, /*Qin */
3811 : const Word16 N,
3812 : const Word16 L,
3813 : const Word16 decimate_factor,
3814 : const Word16 Nfft,
3815 : const Word32 sum_Tf_abs, /*Qin */
3816 : Word16 *synthesis, /*Qin */
3817 : const Word16 HqVoicing,
3818 : Word16 exp )
3819 : {
3820 1 : Word16 i, k, nb_pulses, indmax = 0, nb_pulses_final;
3821 : Word16 pulses[FEC_MAX / 2];
3822 : Word16 mmax, maxi;
3823 : Word32 cumsum, freq, L_tmp;
3824 : Word16 freqi[FEC_NB_PULSE_MAX], tmp, q, inv_den, new_s, old, cpt;
3825 : Word16 a_re[FEC_NB_PULSE_MAX], a_im[FEC_NB_PULSE_MAX];
3826 1 : Word16 Lon20_10 = 80;
3827 : Word16 flag, Len;
3828 : Word16 cosfreq, sinfreq, sN, PL, glued;
3829 : Word32 synthesis_fx[2 * L_FRAME48k];
3830 : Word16 *pt1, *pt2, *pt3, *pt4;
3831 :
3832 1 : move16(); // indmax
3833 1 : move16(); // Lon20_10
3834 1 : flag = HqVoicing;
3835 1 : move16();
3836 1 : if ( GT_16( N, Lon20_10 ) )
3837 : {
3838 0 : flag = 1;
3839 0 : move16(); /*flag corresponds to condition sub(N, Lon20_10)>0 || HqVoicing */
3840 : }
3841 :
3842 :
3843 1 : pt4 = pulses;
3844 1 : nb_pulses = 0;
3845 1 : move16();
3846 1 : PL = 0;
3847 1 : move16();
3848 1 : cpt = 0;
3849 1 : move16();
3850 1 : old = 0;
3851 1 : move16();
3852 1 : glued = 1;
3853 1 : move16();
3854 1 : new_s = Tf_abs[1]; // Qin
3855 1 : move16();
3856 1 : if ( flag )
3857 : {
3858 0 : PL = 1;
3859 0 : move16();
3860 : }
3861 1 : tmp = sub( shr( N, 1 ), 3 );
3862 26 : WHILE( LE_16( cpt, tmp ) )
3863 : {
3864 25 : test();
3865 25 : IF( GT_16( Tf_abs[cpt], old ) && GT_16( Tf_abs[cpt], new_s ) )
3866 11 : {
3867 : Word16 tmp2;
3868 :
3869 11 : glued = cpt;
3870 11 : move16();
3871 :
3872 11 : tmp2 = add( add( cpt, PL ), 1 );
3873 22 : FOR( i = glued; i < tmp2; i++ )
3874 : {
3875 11 : *pt4++ = i;
3876 11 : move16();
3877 11 : nb_pulses++;
3878 11 : move16();
3879 : }
3880 11 : old = Tf_abs[cpt + PL];
3881 11 : move16();
3882 11 : new_s = Tf_abs[cpt + 2 + PL];
3883 11 : move16();
3884 11 : cpt = add( add( cpt, PL ), 1 );
3885 11 : move16();
3886 11 : glued = 1;
3887 11 : move16();
3888 : }
3889 : ELSE
3890 : {
3891 14 : old = Tf_abs[cpt];
3892 14 : move16();
3893 14 : new_s = Tf_abs[cpt + 2];
3894 14 : move16();
3895 14 : cpt++;
3896 14 : glued = 0;
3897 14 : move16();
3898 : }
3899 : }
3900 :
3901 :
3902 1 : nb_pulses_final = 0;
3903 1 : move16();
3904 :
3905 1 : sN = sub( 13, norm_s( Nfft ) ); /*for amplitude normalization by 2/nfft */
3906 :
3907 1 : cumsum = L_deposit_l( 0 );
3908 :
3909 :
3910 1 : L_tmp = Mult_32_16( sum_Tf_abs, 22938 ); // Qin
3911 :
3912 1 : pt1 = a_re;
3913 1 : pt2 = a_im;
3914 1 : pt3 = freqi;
3915 :
3916 1 : maxi = s_min( FEC_NB_PULSE_MAX, nb_pulses );
3917 1 : nb_pulses_final = maxi;
3918 1 : move16();
3919 :
3920 1 : Len = shl( L, 1 );
3921 1 : IF( HqVoicing )
3922 : {
3923 0 : FOR( i = 0; i < maxi; i++ )
3924 : {
3925 0 : mmax = 0;
3926 0 : move16();
3927 0 : pt4 = pulses;
3928 0 : FOR( k = 0; k < nb_pulses; k++ )
3929 : {
3930 0 : tmp = *pt4++;
3931 0 : move16();
3932 0 : if ( GT_16( Tf_abs[tmp], mmax ) )
3933 : {
3934 0 : indmax = tmp;
3935 0 : move16();
3936 : }
3937 0 : mmax = s_max( Tf_abs[tmp], mmax );
3938 : }
3939 :
3940 0 : *pt1++ = Tfr[indmax];
3941 0 : move16(); /*L_shr(Tfr[indmax], sN); //instead shr -> scaling of a_re is Qin+sN */
3942 0 : *pt2++ = Tfi[indmax];
3943 0 : move16(); /*L_shr(Tfi[indmax], sN); //instead shr -> scaling of a_im is Qin+sN */
3944 0 : *pt3++ = indmax;
3945 0 : move16();
3946 0 : Tf_abs[indmax] = -1;
3947 0 : move16();
3948 : }
3949 : }
3950 : ELSE
3951 : {
3952 : DO
3953 : {
3954 8 : mmax = 0;
3955 8 : move16();
3956 8 : pt4 = pulses;
3957 96 : FOR( k = 0; k < nb_pulses; k++ )
3958 : {
3959 88 : tmp = *pt4++;
3960 88 : move16();
3961 88 : if ( GT_16( Tf_abs[tmp], mmax ) )
3962 : {
3963 19 : indmax = tmp;
3964 19 : move16();
3965 : }
3966 88 : mmax = s_max( Tf_abs[tmp], mmax );
3967 : }
3968 :
3969 8 : cumsum = L_mac0( cumsum, mmax, 1 ); // Qin
3970 :
3971 8 : *pt1++ = Tfr[indmax];
3972 8 : move16(); /*L_shr(Tfr[indmax], sN); //instead shr -> scaling of a_re is Qin+sN */
3973 8 : *pt2++ = Tfi[indmax];
3974 8 : move16(); /*L_shr(Tfi[indmax], sN); //instead shr -> scaling of a_im is Qin+sN */
3975 8 : *pt3++ = indmax;
3976 8 : move16();
3977 8 : Tf_abs[indmax] = -1;
3978 8 : move16();
3979 :
3980 8 : maxi = sub( maxi, 1 );
3981 : }
3982 8 : WHILE( maxi > 0 && LT_32( cumsum, L_tmp ) );
3983 :
3984 1 : nb_pulses_final = sub( nb_pulses_final, maxi );
3985 1 : move16();
3986 : }
3987 :
3988 :
3989 : /* sinusoidal synthesis */
3990 :
3991 :
3992 1 : set32_fx( synthesis_fx, 0, Len );
3993 :
3994 1 : exp = add( exp, sN );
3995 :
3996 :
3997 1 : pt1 = a_re;
3998 1 : pt2 = a_im;
3999 1 : pt3 = freqi;
4000 1 : q = shr_r( N, 2 );
4001 1 : if ( GT_16( N, shl( q, 2 ) ) )
4002 : {
4003 0 : q = add( q, 1 );
4004 : }
4005 :
4006 1 : inv_den = i_mult2( N, decimate_factor ); /*Q0 */
4007 :
4008 : /*tmp = div_s(12868,inv_den);*/ /*Q15 */
4009 :
4010 :
4011 9 : FOR( i = 0; i < nb_pulses_final; i++ )
4012 : {
4013 :
4014 8 : tmp = div_s( shl( *pt3, 1 ), inv_den ); /*Q15 */ /* ind*2/(N*decim) */
4015 8 : freq = L_shl( L_mult( tmp, 25736 ), 1 ); /*Q30 */ /* ind*2/(N*decim)*pi/4*4 never greater than PI/2 */
4016 8 : sin_cos_est_fx( freq, &cosfreq, &sinfreq ); /*cosfreq & sinfreq in Q15 */
4017 8 : singenerator_fx( Len, cosfreq, sinfreq, *pt1, *pt2, synthesis_fx ); /*Qin */
4018 :
4019 8 : pt1++;
4020 8 : pt2++;
4021 8 : pt3++;
4022 : }
4023 1 : Copy_Scale_sig_32_16( synthesis_fx, synthesis, Len, negate( add( exp, 16 ) ) ); /*Qin */
4024 :
4025 :
4026 1 : return;
4027 : }
4028 :
4029 1 : static void ivas_fec_noise_filling_fx(
4030 : const Word16 *prevsynth_fx, /*Qsynth */
4031 : Word16 *synthesis_fx, /*Qsynth */
4032 : Word16 *ni_seed_forfec,
4033 : const Word16 L,
4034 : const Word16 N,
4035 : const Word16 HqVoicing,
4036 : Word16 *gapsynth_fx, /*Qsynth */
4037 : const Word16 element_mode, /* i : IVAS element mode */
4038 : const Word16 *old_out,
4039 : const Word16 Q_old_out )
4040 : {
4041 :
4042 : Word16 Rnd_N_noise;
4043 : Word16 k, kk, i;
4044 : Word16 N_noise;
4045 :
4046 : Word16 tmp_fx, ind, q1, q2, L20, flag;
4047 : Word16 noisevect_fx[34 * L_FRAME48k / 20], SS_fx[L_FRAME48k / 2];
4048 : Word16 *pt1, *pt2, *pt3, *pt4, *pt5;
4049 : const Word16 *pt6;
4050 : Word32 L_tmp;
4051 : const Word16 *sinq_tab;
4052 :
4053 : const Word16 *p_mdct_ola;
4054 : Word16 alignment_point;
4055 : // PMTE()
4056 1 : L20 = extract_h( L_mult( 1639, L ) ); /*L/20 */
4057 1 : IF( element_mode == EVS_MONO )
4058 : {
4059 0 : alignment_point = sub( shl( L, 1 ), i_mult2( 3, L20 ) );
4060 : }
4061 : ELSE
4062 : {
4063 1 : alignment_point = shl( L, 1 );
4064 : }
4065 :
4066 1 : IF( EQ_16( L, L_FRAME32k ) )
4067 : {
4068 1 : sinq_tab = sinq_32k;
4069 : }
4070 0 : ELSE IF( EQ_16( L, L_FRAME48k ) )
4071 : {
4072 0 : sinq_tab = sinq_48k;
4073 : }
4074 : ELSE
4075 : {
4076 0 : sinq_tab = sinq_16k;
4077 : }
4078 :
4079 1 : Copy( prevsynth_fx + sub( alignment_point, N ), noisevect_fx, N );
4080 :
4081 : /* Noise addition on full band */
4082 : /* residual */
4083 :
4084 1 : tmp_fx = s_min( N, L );
4085 1 : N_noise = shr( tmp_fx, 1 );
4086 1 : ind = sub( N, tmp_fx );
4087 1 : pt1 = noisevect_fx;
4088 1 : pt2 = pt1 + ind;
4089 1 : move16();
4090 1 : pt3 = &synthesis_fx[ind];
4091 1 : move16();
4092 221 : FOR( k = 0; k < tmp_fx; k++ )
4093 : {
4094 220 : ( *pt1++ ) = sub_sat( ( *pt2++ ), ( *pt3++ ) );
4095 220 : move16();
4096 : }
4097 :
4098 1 : IF( HqVoicing )
4099 : {
4100 0 : Scale_sig( noisevect_fx, N, -2 );
4101 : }
4102 :
4103 1 : kk = 0;
4104 1 : move16();
4105 1 : k = 0;
4106 1 : move16();
4107 1 : Rnd_N_noise = N_noise;
4108 1 : move16();
4109 :
4110 1 : ind = shl( L, 1 );
4111 1 : flag = ind;
4112 1 : move16();
4113 1 : pt5 = synthesis_fx;
4114 21 : WHILE( flag > 0 )
4115 : {
4116 20 : tmp_fx = Random( ni_seed_forfec );
4117 :
4118 20 : L_tmp = L_mac( 1503264768, tmp_fx, 9830 );
4119 20 : IF( EQ_16( kk, 0 ) )
4120 : {
4121 10 : L_tmp = L_mac( 1073741824, tmp_fx, 6554 );
4122 : }
4123 :
4124 20 : kk = sub( 1, kk );
4125 20 : tmp_fx = round_fx( L_tmp );
4126 20 : Rnd_N_noise = extract_h( L_mult( N_noise, tmp_fx ) ); /*Q0 */
4127 :
4128 :
4129 20 : tmp_fx = div_s( 1, Rnd_N_noise ); /*Q15 */
4130 20 : tmp_fx = round_fx( L_shl( L_mult( tmp_fx, 25736 ), 2 ) ); /*Q15 */
4131 :
4132 20 : sinq_fx( shr( tmp_fx, 1 ), shr( tmp_fx, 2 ), Rnd_N_noise, SS_fx );
4133 :
4134 20 : pt2 = &noisevect_fx[N_noise];
4135 20 : pt1 = pt2 - Rnd_N_noise;
4136 20 : pt3 = SS_fx;
4137 20 : pt4 = pt3 + sub( Rnd_N_noise, 1 );
4138 20 : tmp_fx = s_min( Rnd_N_noise, flag );
4139 1300 : FOR( i = 0; i < tmp_fx; i++ )
4140 : {
4141 1280 : L_tmp = L_mult( ( *pt1++ ), ( *pt3++ ) ); /*Qsynth+16 */
4142 1280 : L_tmp = L_mac_sat( L_tmp, ( *pt2++ ), ( *pt4-- ) ); /*Qsynth+16 */
4143 1280 : *pt5 = add_sat( *pt5, round_fx_sat( L_tmp ) );
4144 1280 : move16(); /*Qsynth */
4145 1280 : pt5++;
4146 : }
4147 20 : flag = sub( flag, tmp_fx );
4148 : }
4149 :
4150 1 : IF( element_mode == EVS_MONO )
4151 : {
4152 0 : kk = i_mult2( 7, L20 );
4153 0 : tmp_fx = i_mult2( 37, L20 );
4154 0 : p_mdct_ola = prevsynth_fx + tmp_fx;
4155 : }
4156 : ELSE
4157 : {
4158 1 : kk = NS2SA_FX2( L_mult0( L, FRAMES_PER_SEC ), N_ZERO_MDCT_NS );
4159 1 : p_mdct_ola = old_out + kk;
4160 : }
4161 :
4162 : /* overlappadd with the ms of valid mdct of the last frame */
4163 1 : tmp_fx = i_mult2( 3, L20 );
4164 1 : pt1 = &synthesis_fx[0];
4165 1 : pt6 = &p_mdct_ola[0];
4166 97 : FOR( k = 0; k < tmp_fx; k++ )
4167 : {
4168 96 : L_tmp = L_mult( *sinq_tab, *sinq_tab ); /*Q31 */
4169 96 : sinq_tab++;
4170 96 : q2 = round_fx( L_sub( 2147483647, L_tmp ) ); /*Q15 */
4171 96 : q1 = round_fx( L_tmp ); /*Q15 */
4172 96 : L_tmp = L_mult( ( *pt1 ), q1 ); /*Qsynth+16 */
4173 96 : L_tmp = L_add_sat( L_tmp, L_shr_sat( Mpy_32_16_1( L_deposit_h( *pt6++ ), q2 ), Q_old_out ) ); /*Qsynth+16 */
4174 96 : ( *pt1++ ) = round_fx_sat( L_tmp ); /*Qsynth */
4175 96 : move16();
4176 : }
4177 :
4178 1 : Copy( synthesis_fx, synthesis_fx + kk, sub( 2 * L, kk ) );
4179 1 : Copy( synthesis_fx + L, gapsynth_fx, L );
4180 1 : Copy( prevsynth_fx + sub( alignment_point, kk ), synthesis_fx, kk );
4181 1 : }
4182 :
4183 0 : static void fec_noise_filling_fx(
4184 : const Word16 *prevsynth_fx, /*Qsynth */
4185 : Word16 *synthesis_fx, /*Qsynth */
4186 : Word16 *ni_seed_forfec,
4187 : const Word16 L,
4188 : const Word16 N,
4189 : const Word16 HqVoicing,
4190 : Word16 *gapsynth_fx /*Qsynth */
4191 : )
4192 : {
4193 :
4194 : Word16 Rnd_N_noise;
4195 : Word16 k, kk, i;
4196 : Word16 N_noise;
4197 :
4198 : Word16 tmp_fx, ind, q1, q2, L20, flag;
4199 : Word16 noisevect_fx[34 * L_FRAME48k / 20], SS_fx[L_FRAME48k / 2];
4200 : Word16 *pt1, *pt2, *pt3, *pt4, *pt5;
4201 : const Word16 *pt6;
4202 : Word32 L_tmp;
4203 : const Word16 *sinq_tab;
4204 :
4205 0 : IF( EQ_16( L, L_FRAME32k ) )
4206 : {
4207 0 : sinq_tab = sinq_32k;
4208 : }
4209 0 : ELSE IF( EQ_16( L, L_FRAME48k ) )
4210 : {
4211 0 : sinq_tab = sinq_48k;
4212 : }
4213 : ELSE
4214 : {
4215 0 : sinq_tab = sinq_16k;
4216 : }
4217 :
4218 0 : L20 = extract_h( L_mult( 1639, L ) ); /*L/20 */
4219 :
4220 : /*N=47*L/20-delay_ind*decimatefator-6*L/20; */
4221 :
4222 0 : tmp_fx = sub( sub( shl( L, 1 ), i_mult2( 3, L20 ) ), N );
4223 0 : Copy( prevsynth_fx + tmp_fx, noisevect_fx, N );
4224 :
4225 : /* Noise addition on full band */
4226 : /* residual */
4227 :
4228 0 : tmp_fx = s_min( N, L );
4229 0 : N_noise = shr( tmp_fx, 1 );
4230 0 : ind = sub( N, tmp_fx );
4231 0 : pt1 = noisevect_fx;
4232 0 : pt2 = pt1 + ind;
4233 0 : move16();
4234 0 : pt3 = &synthesis_fx[ind];
4235 0 : move16();
4236 0 : FOR( k = 0; k < tmp_fx; k++ )
4237 : {
4238 0 : ( *pt1++ ) = sub_sat( ( *pt2++ ), ( *pt3++ ) );
4239 0 : move16();
4240 : }
4241 :
4242 0 : IF( HqVoicing )
4243 : {
4244 0 : Scale_sig( noisevect_fx, N, -2 );
4245 : }
4246 :
4247 0 : kk = 0;
4248 0 : move16();
4249 0 : k = 0;
4250 0 : move16();
4251 0 : Rnd_N_noise = N_noise;
4252 0 : move16();
4253 :
4254 0 : ind = shl( L, 1 );
4255 0 : flag = ind;
4256 0 : move16();
4257 0 : pt5 = synthesis_fx;
4258 0 : WHILE( flag > 0 )
4259 : {
4260 0 : tmp_fx = Random( ni_seed_forfec );
4261 :
4262 0 : L_tmp = L_mac( 1503264768, tmp_fx, 9830 );
4263 0 : if ( kk == 0 )
4264 : {
4265 0 : L_tmp = L_mac( 1073741824, tmp_fx, 6554 );
4266 : }
4267 :
4268 0 : kk = sub( 1, kk );
4269 0 : tmp_fx = round_fx( L_tmp );
4270 0 : Rnd_N_noise = extract_h( L_mult( N_noise, tmp_fx ) ); /*Q0 */
4271 :
4272 :
4273 0 : tmp_fx = div_s( 1, Rnd_N_noise ); /*Q15 */
4274 0 : tmp_fx = round_fx_sat( L_shl_sat( L_mult( tmp_fx, 25736 ), 2 ) ); /*Q15 */
4275 :
4276 0 : sinq_fx( shr( tmp_fx, 1 ), shr( tmp_fx, 2 ), Rnd_N_noise, SS_fx );
4277 :
4278 0 : pt2 = &noisevect_fx[N_noise];
4279 0 : pt1 = pt2 - Rnd_N_noise;
4280 0 : pt3 = SS_fx;
4281 0 : pt4 = pt3 + sub( Rnd_N_noise, 1 );
4282 0 : tmp_fx = s_min( Rnd_N_noise, flag );
4283 0 : FOR( i = 0; i < tmp_fx; i++ )
4284 : {
4285 0 : L_tmp = L_mult( ( *pt1++ ), ( *pt3++ ) ); /*Qsynth+16 */
4286 0 : L_tmp = L_mac_sat( L_tmp, ( *pt2++ ), ( *pt4-- ) ); /*Qsynth+16 */
4287 0 : *pt5 = add_sat( *pt5, round_fx_sat( L_tmp ) );
4288 0 : move16(); /*Qsynth */
4289 0 : pt5++;
4290 : }
4291 0 : flag = sub( flag, tmp_fx );
4292 : }
4293 :
4294 0 : q1 = i_mult2( 7, L20 );
4295 0 : q2 = i_mult2( 33, L20 );
4296 :
4297 0 : Copy( synthesis_fx, synthesis_fx + q1, q2 );
4298 0 : Copy( synthesis_fx + L, gapsynth_fx, L );
4299 0 : Copy( prevsynth_fx + sub( i_mult2( 37, L20 ), q1 ), synthesis_fx, q1 );
4300 0 : pt1 = &synthesis_fx[q1];
4301 0 : q2 = i_mult2( 37, L20 );
4302 0 : pt6 = &prevsynth_fx[q2];
4303 0 : tmp_fx = i_mult2( 3, L20 );
4304 :
4305 : /* overlappadd with the ms of valid mdct of the last frame */
4306 0 : FOR( k = 0; k < tmp_fx; k++ )
4307 : {
4308 0 : L_tmp = L_mult( *sinq_tab, *sinq_tab ); /*Q30 */
4309 0 : sinq_tab++;
4310 0 : q2 = round_fx( L_sub( 2147483647, L_tmp ) ); /*Q15 */
4311 0 : q1 = round_fx( L_tmp ); /*Q15 */
4312 0 : L_tmp = L_mult( ( *pt1 ), q1 ); /*Qsynth+16 */
4313 0 : L_tmp = L_mac( L_tmp, ( *pt6++ ), q2 ); /*Qsynth+16 */
4314 0 : ( *pt1++ ) = round_fx( L_tmp ); /*Qsynth */
4315 0 : move16();
4316 : }
4317 0 : }
4318 :
4319 1 : static void ivas_fec_alg_fx(
4320 : const Word16 *prevsynth, /*Qin */
4321 : const Word16 *prevsynth_LP, /*Qin */
4322 : Word16 *ni_seed_forfec,
4323 : Word32 *ecu_rec, /*Qin+16 (Qin+15 to be coherent witch other scaling) */
4324 : const Word16 output_frame,
4325 : const Word16 N,
4326 : const Word16 decimatefactor,
4327 : const Word16 HqVoicing,
4328 : Word16 *gapsynth, /*Qin */
4329 : const Word16 element_mode, /* i : IVAS element mode */
4330 : const Word16 *old_out,
4331 : const Word16 Q_old_out )
4332 : {
4333 : Word16 Nfft;
4334 : Word32 sum_Tf_abs;
4335 : Word16 Tfr[FEC_FFT_MAX_SIZE];
4336 : Word16 Tfi[FEC_FFT_MAX_SIZE];
4337 : Word16 Tf_abs[FEC_FFT_MAX_SIZE / 2];
4338 : Word16 synthesis[2 * L_FRAME48k];
4339 : Word16 exp;
4340 : Word16 n, Q;
4341 :
4342 1 : ivas_fec_ecu_dft_fx( prevsynth_LP, N, Tfr, Tfi, &sum_Tf_abs, Tf_abs, &Nfft, &exp, element_mode );
4343 :
4344 1 : sinusoidal_synthesis_fx( Tfr, Tfi, Tf_abs, N, output_frame, decimatefactor, Nfft, sum_Tf_abs, synthesis, HqVoicing, exp );
4345 :
4346 1 : ivas_fec_noise_filling_fx( prevsynth, synthesis, ni_seed_forfec, output_frame, i_mult2( N, decimatefactor ), HqVoicing, gapsynth, element_mode, old_out, Q_old_out );
4347 :
4348 1 : n = R1_48 - R2_48;
4349 1 : move16();
4350 :
4351 1 : test();
4352 1 : IF( EQ_16( output_frame, L_FRAME32k ) || EQ_16( output_frame, L_FRAME16k ) )
4353 : {
4354 1 : n = R1_16 - R2_16;
4355 1 : move16();
4356 :
4357 1 : if ( EQ_16( output_frame, L_FRAME32k ) )
4358 : {
4359 1 : n = 2 * N16_CORE_SW;
4360 1 : move16();
4361 : }
4362 : }
4363 1 : Q = 0;
4364 1 : move16();
4365 1 : wtda_fx( synthesis + sub( output_frame, n ), &Q, ecu_rec,
4366 : NULL,
4367 : NULL, ALDO_WINDOW, ALDO_WINDOW, output_frame ); /* return Q15 */
4368 :
4369 1 : return;
4370 : }
4371 :
4372 0 : static void fec_alg_fx(
4373 : const Word16 *prevsynth, /*Qin */
4374 : const Word16 *prevsynth_LP, /*Qin */
4375 : Word16 *ni_seed_forfec,
4376 : Word32 *ecu_rec, /*Qin+16 (Qin+15 to be coherent witch other scaling) */
4377 : const Word16 output_frame,
4378 : const Word16 N,
4379 : const Word16 decimatefactor,
4380 : const Word16 HqVoicing,
4381 : Word16 *gapsynth /*Qin */
4382 : )
4383 : {
4384 : Word16 Nfft;
4385 : Word32 sum_Tf_abs;
4386 : Word16 Tfr[FEC_FFT_MAX_SIZE];
4387 : Word16 Tfi[FEC_FFT_MAX_SIZE];
4388 : Word16 Tf_abs[FEC_FFT_MAX_SIZE / 2];
4389 : Word16 synthesis[2 * L_FRAME48k];
4390 : Word16 exp;
4391 : Word16 n, Q;
4392 :
4393 0 : fec_ecu_dft_fx( prevsynth_LP, N, Tfr, Tfi, &sum_Tf_abs, Tf_abs, &Nfft, &exp );
4394 :
4395 0 : sinusoidal_synthesis_fx( Tfr, Tfi, Tf_abs, N, output_frame, decimatefactor, Nfft, sum_Tf_abs, synthesis, HqVoicing, exp );
4396 :
4397 0 : fec_noise_filling_fx( prevsynth, synthesis, ni_seed_forfec, output_frame, i_mult2( N, decimatefactor ), HqVoicing, gapsynth );
4398 :
4399 0 : n = R1_48 - R2_48;
4400 0 : move16();
4401 :
4402 0 : test();
4403 0 : IF( EQ_16( output_frame, L_FRAME32k ) || EQ_16( output_frame, L_FRAME16k ) )
4404 : {
4405 0 : n = R1_16 - R2_16;
4406 0 : move16();
4407 :
4408 0 : if ( EQ_16( output_frame, L_FRAME32k ) )
4409 : {
4410 0 : n = 2 * N16_CORE_SW;
4411 0 : move16();
4412 : }
4413 : }
4414 0 : Q = 0;
4415 0 : move16();
4416 0 : wtda_fx( synthesis + sub( output_frame, n ), &Q, ecu_rec,
4417 : NULL,
4418 : NULL, ALDO_WINDOW, ALDO_WINDOW, output_frame ); /* return Q15 */
4419 :
4420 0 : return;
4421 : }
4422 :
4423 : /*--------------------------------------------------------------------------
4424 : * hq_phase_ecu_fx()
4425 : *
4426 : * Main routine for HQ phase ECU
4427 : *--------------------------------------------------------------------------*/
4428 :
4429 132 : static void ivas_hq_phase_ecu_fx(
4430 : const Word16 *prevsynth, /* i : buffer of previously synthesized signal Q0 */
4431 : Word32 *ecu_rec, /* o : reconstructed frame in tda domain */
4432 : Word16 *time_offs, /* i/o: Sample offset for consecutive frame losses Q0*/
4433 : Word16 *X_sav, /* i/o: Stored spectrum of prototype frame */
4434 : Word16 *Q_spec, /* i/o: Q value of stored spectrum */
4435 : Word16 *num_p, /* i/o: Number of identified peaks Q0 */
4436 : Word16 *plocs, /* i/o: Peak locations Q0 */
4437 : Word32 *plocsi, /* i/o: Interpolated peak locations Q16 */
4438 : const Word16 env_stab, /* i : Envelope stability parameter */
4439 : Word16 *last_fec, /* i/o: Flag for usage of pitch dependent ECU */
4440 : Word16 *ph_ecu_active, /* i : Phase ECU active flag */
4441 : const Word16 prev_bfi, /* i : indicating burst frame error */
4442 : const Word16 old_is_transient[2], /* i : flags indicating previous transient frames */
4443 : Word16 *mag_chg_1st, /* i/o: per band magnitude modifier for transients*/
4444 : Word16 *Xavg, /* i/o: Frequency group average gain to fade to Q0 */
4445 : Word16 *beta_mute, /* o : Factor for long-term mute Q15 */
4446 : const Word16 bwidth_fx, /* i : Encoded bandwidth */
4447 : const Word16 output_frame, /* i : frame length */
4448 : const Word16 pcorr,
4449 : const Word16 element_mode /* i : IVAS element mode */
4450 : )
4451 : {
4452 : Word16 lprot, offset;
4453 : Word16 mag_chg[LGW_MAX], ph_dith, X[L_PROT48k];
4454 : Word16 seed;
4455 : Word16 alpha[LGW_MAX], beta[LGW_MAX];
4456 :
4457 : const Word16 *old_dec;
4458 : Word16 noise_fac;
4459 : Word16 ph_ecu_lookahead;
4460 :
4461 132 : noise_fac = 32767; /* 1.0f in Q15 */
4462 132 : move16();
4463 :
4464 132 : IF( element_mode == EVS_MONO )
4465 : {
4466 0 : ph_ecu_lookahead = NS2SA_FX2( L_mult0( output_frame, FRAMES_PER_SEC ), PH_ECU_LOOKAHEAD_NS );
4467 0 : move16();
4468 : }
4469 : ELSE
4470 : {
4471 132 : ph_ecu_lookahead = 0;
4472 132 : move16();
4473 : }
4474 132 : IF( EQ_16( output_frame, L_FRAME48k ) )
4475 : {
4476 103 : lprot = L_PROT48k; /* 1536 = (2*output_frame)*1024/1280 */
4477 103 : move16();
4478 : }
4479 29 : ELSE IF( EQ_16( output_frame, L_FRAME32k ) )
4480 : {
4481 29 : lprot = L_PROT32k; /* 1024 */
4482 29 : move16();
4483 : }
4484 0 : ELSE IF( EQ_16( output_frame, L_FRAME16k ) )
4485 : {
4486 0 : lprot = 512;
4487 0 : move16();
4488 : }
4489 : ELSE
4490 : {
4491 0 : lprot = 256;
4492 0 : move16();
4493 : }
4494 :
4495 132 : test();
4496 132 : test();
4497 132 : test();
4498 132 : IF( prev_bfi == 0 || ( prev_bfi != 0 && *last_fec != 0 && ( EQ_16( *time_offs, output_frame ) ) ) )
4499 : {
4500 54 : test();
4501 54 : test();
4502 : // PMT("verify condition compared to float")
4503 54 : if ( !( prev_bfi != 0 && *last_fec != 0 && element_mode == EVS_MONO ) )
4504 : {
4505 54 : *time_offs = 0;
4506 54 : move16();
4507 : }
4508 :
4509 54 : offset = add( sub( sub( shl( output_frame, 1 ), lprot ), *time_offs ), ph_ecu_lookahead );
4510 54 : trans_ana_fx( prevsynth + offset, mag_chg, &ph_dith, mag_chg_1st, output_frame, *time_offs, env_stab,
4511 54 : *last_fec, alpha, beta, beta_mute, Xavg );
4512 :
4513 54 : ivas_spec_ana_fx( prevsynth + offset, plocs, plocsi, num_p, X_sav, output_frame, bwidth_fx, Q_spec, element_mode, &noise_fac, pcorr );
4514 :
4515 54 : test();
4516 54 : IF( prev_bfi != 0 && *last_fec != 0 )
4517 : {
4518 0 : *time_offs = add( *time_offs, output_frame );
4519 0 : move16();
4520 : }
4521 : }
4522 : ELSE
4523 : {
4524 78 : *time_offs = add_sat( *time_offs, output_frame );
4525 78 : move16();
4526 78 : offset = sub( shl( output_frame, 1 ), lprot );
4527 78 : trans_ana_fx( prevsynth + offset, mag_chg, &ph_dith, mag_chg_1st, output_frame, *time_offs, env_stab,
4528 : 0, alpha, beta, beta_mute, Xavg );
4529 : }
4530 :
4531 132 : Copy( X_sav, X, lprot );
4532 :
4533 : /* seed for own_rand2 */
4534 132 : seed = *time_offs;
4535 132 : move16();
4536 132 : IF( *num_p > 0 )
4537 : {
4538 132 : seed = extract_l( L_add( L_deposit_l( seed ), L_deposit_l( plocs[*num_p - 1] ) ) );
4539 : }
4540 :
4541 132 : ivas_subst_spec_fx( plocs, plocsi, num_p, *time_offs, X, mag_chg, ph_dith, old_is_transient, output_frame, &seed,
4542 132 : alpha, beta, *beta_mute, Xavg, element_mode, ph_ecu_lookahead, noise_fac );
4543 :
4544 : /* reconstructed frame in tda domain */
4545 132 : old_dec = prevsynth + sub( shl( output_frame, 1 ), NS2SA_FX2( L_mult0( output_frame, FRAMES_PER_SEC ), N_ZERO_MDCT_NS ) );
4546 132 : ivas_rec_frame_fx( X, ecu_rec, output_frame, *Q_spec, old_dec, element_mode, num_p, plocs );
4547 :
4548 132 : *last_fec = 0;
4549 132 : move16();
4550 132 : *ph_ecu_active = 1;
4551 132 : move16();
4552 132 : }
4553 :
4554 0 : static void hq_phase_ecu_fx(
4555 : const Word16 *prevsynth, /* i : buffer of previously synthesized signal Q0 */
4556 : Word32 *ecu_rec, /* o : reconstructed frame in tda domain */
4557 : Word16 *time_offs, /* i/o: Sample offset for consecutive frame losses Q0*/
4558 : Word16 *X_sav, /* i/o: Stored spectrum of prototype frame */
4559 : Word16 *Q_spec, /* i/o: Q value of stored spectrum */
4560 : Word16 *num_p, /* i/o: Number of identified peaks Q0 */
4561 : Word16 *plocs, /* i/o: Peak locations Q0 */
4562 : Word32 *plocsi, /* i/o: Interpolated peak locations Q16 */
4563 : const Word16 env_stab, /* i : Envelope stability parameter */
4564 : Word16 *last_fec, /* i/o: Flag for usage of pitch dependent ECU */
4565 : Word16 *ph_ecu_active, /* i : Phase ECU active flag */
4566 : const Word16 prev_bfi, /* i : indicating burst frame error */
4567 : const Word16 old_is_transient[2], /* i : flags indicating previous transient frames */
4568 : Word16 *mag_chg_1st, /* i/o: per band magnitude modifier for transients*/
4569 : Word16 *Xavg, /* i/o: Frequency group average gain to fade to Q0 */
4570 : Word16 *beta_mute, /* o : Factor for long-term mute Q15 */
4571 : const Word16 bwidth_fx, /* i : Encoded bandwidth */
4572 : const Word16 output_frame /* i : frame length */
4573 : )
4574 : {
4575 : Word16 lprot, offset;
4576 : Word16 mag_chg[LGW_MAX], ph_dith, X[L_PROT48k];
4577 : Word16 seed;
4578 : Word16 alpha[LGW_MAX], beta[LGW_MAX];
4579 :
4580 0 : IF( EQ_16( output_frame, L_FRAME48k ) )
4581 : {
4582 0 : lprot = L_PROT48k; /* 1536 = (2*output_frame)*1024/1280 */
4583 0 : move16();
4584 : }
4585 0 : ELSE IF( EQ_16( output_frame, L_FRAME32k ) )
4586 : {
4587 0 : lprot = L_PROT32k; /* 1024 */
4588 0 : move16();
4589 : }
4590 0 : ELSE IF( output_frame == L_FRAME16k )
4591 : {
4592 0 : lprot = 512;
4593 0 : move16();
4594 : }
4595 : ELSE
4596 : {
4597 0 : lprot = 256;
4598 0 : move16();
4599 : }
4600 :
4601 0 : test();
4602 0 : test();
4603 0 : test();
4604 0 : IF( prev_bfi == 0 || ( prev_bfi != 0 && *last_fec != 0 && ( EQ_16( *time_offs, output_frame ) ) ) )
4605 : {
4606 0 : test();
4607 : // PMT("verify condition compared to float")
4608 0 : if ( !( prev_bfi != 0 && *last_fec != 0 ) )
4609 : {
4610 0 : *time_offs = 0;
4611 0 : move16();
4612 : }
4613 :
4614 0 : offset = sub( sub( shl( output_frame, 1 ), lprot ), *time_offs );
4615 0 : trans_ana_fx( prevsynth + offset, mag_chg, &ph_dith, mag_chg_1st, output_frame, *time_offs, env_stab,
4616 0 : *last_fec, alpha, beta, beta_mute, Xavg );
4617 :
4618 0 : spec_ana_fx( prevsynth + offset, plocs, plocsi, num_p, X_sav, output_frame, bwidth_fx, Q_spec );
4619 :
4620 0 : test();
4621 0 : IF( prev_bfi != 0 && *last_fec != 0 )
4622 : {
4623 0 : *time_offs = add( *time_offs, output_frame );
4624 0 : move16();
4625 : }
4626 : }
4627 : ELSE
4628 : {
4629 0 : *time_offs = add( *time_offs, output_frame );
4630 0 : move16();
4631 :
4632 0 : offset = sub( shl( output_frame, 1 ), lprot );
4633 0 : trans_ana_fx( prevsynth + offset, mag_chg, &ph_dith, mag_chg_1st, output_frame, *time_offs, env_stab,
4634 : 0, alpha, beta, beta_mute, Xavg );
4635 : }
4636 :
4637 0 : Copy( X_sav, X, lprot );
4638 :
4639 : /* seed for own_rand2 */
4640 0 : seed = *time_offs;
4641 0 : move16();
4642 0 : IF( *num_p > 0 )
4643 : {
4644 0 : seed = add( seed, plocs[*num_p - 1] );
4645 : }
4646 :
4647 0 : subst_spec_fx( plocs, plocsi, num_p, *time_offs, X, mag_chg, ph_dith, old_is_transient, output_frame, &seed,
4648 0 : alpha, beta, *beta_mute, Xavg );
4649 :
4650 : /* reconstructed frame in tda domain */
4651 0 : rec_frame_fx( X, ecu_rec, output_frame, *Q_spec );
4652 :
4653 0 : *last_fec = 0;
4654 0 : move16();
4655 0 : *ph_ecu_active = 1;
4656 0 : move16();
4657 0 : }
4658 :
4659 :
4660 : /*--------------------------------------------------------------------------
4661 : * hq_ecu()
4662 : *
4663 : * Main routine for HQ ECU
4664 : *--------------------------------------------------------------------------*/
4665 :
4666 133 : void ivas_hq_ecu_fx(
4667 : const Word16 *prevsynth, /* i : buffer of previously synthesized signal Q0 */
4668 : Word32 *ecu_rec, /* o : reconstructed frame in tda domain */
4669 : Word16 *time_offs, /* i/o: Sample offset for consecutive frame losses Q0 */
4670 : Word16 *X_sav, /* i/o: Stored spectrum of prototype frame */
4671 : Word16 *Q_spec, /* i/o: Q value of stored spectrum */
4672 : Word16 *num_p, /* i/o: Number of identified peaks Q0 */
4673 : Word16 *plocs, /* i/o: Peak locations Q0 */
4674 : Word32 *plocsi, /* i/o: Interpolated peak locations Q16 */
4675 : const Word16 env_stab, /* i : Envelope stability parameter */
4676 : Word16 *last_fec, /* i/o: Flag for usage of pitch dependent ECU */
4677 : const Word16 ph_ecu_HqVoicing, /* i : HQ Voicing flag */
4678 : Word16 *ph_ecu_active, /* i : Phase ECU active flag */
4679 : Word16 *gapsynth, /* o : Gap synthesis */
4680 : const Word16 prev_bfi, /* i : indicating burst frame error */
4681 : const Word16 old_is_transient[2], /* i : flags indicating previous transient frames */
4682 : Word16 *mag_chg_1st, /* i/o: per band magnitude modifier for transients */
4683 : Word16 *Xavg, /* i/o: Frequency group average gain to fade to Q0 */
4684 : Word16 *beta_mute, /* o : Factor for long-term mute Q15 */
4685 : const Word16 output_frame, /* i : frame length */
4686 : Decoder_State *st_fx /* i/o: decoder state structure */
4687 : )
4688 : {
4689 : Word16 N;
4690 : Word16 decimatefactor;
4691 : Word16 corr; /*Q15 */
4692 : Word16 prevsynth_LP[2 * L_FRAME8k];
4693 : HQ_DEC_HANDLE hHQ_core;
4694 : const Word16 *fec_alg_input;
4695 : Word16 evs_mode_selection;
4696 : Word16 ivas_mode_selection;
4697 :
4698 133 : hHQ_core = st_fx->hHQ_core;
4699 133 : corr = 0;
4700 133 : move16();
4701 133 : IF( EQ_16( st_fx->element_mode, EVS_MONO ) )
4702 : {
4703 0 : fec_alg_input = prevsynth + NS2SA_FX2( L_mult0( output_frame, FRAMES_PER_SEC ), ACELP_LOOK_NS / 2 - PH_ECU_LOOKAHEAD_NS );
4704 : }
4705 : ELSE
4706 : {
4707 133 : fec_alg_input = prevsynth - NS2SA_FX2( L_mult0( output_frame, FRAMES_PER_SEC ), PH_ECU_LOOKAHEAD_NS );
4708 : }
4709 : /* init (values ar changed after) */
4710 :
4711 :
4712 : /* find pitch and R value */
4713 :
4714 133 : IF( !( LT_16( output_frame, L_FRAME16k ) ) )
4715 : {
4716 133 : fec_ecu_pitch_ivas_fx( fec_alg_input, prevsynth_LP, output_frame, &N, &corr, &decimatefactor, ph_ecu_HqVoicing );
4717 : }
4718 : ELSE
4719 : {
4720 0 : corr = 0;
4721 0 : decimatefactor = 4;
4722 0 : move16();
4723 0 : N = shr( output_frame, 2 );
4724 0 : move16(); /* just to avoid using uninitialized value in if statement below */
4725 : }
4726 :
4727 133 : test();
4728 133 : test();
4729 133 : test();
4730 133 : test();
4731 133 : test();
4732 133 : test();
4733 133 : test();
4734 133 : test();
4735 133 : test();
4736 133 : test();
4737 133 : test();
4738 133 : test();
4739 133 : test();
4740 133 : test();
4741 133 : test();
4742 :
4743 133 : evs_mode_selection = ( GE_32( st_fx->total_brate, 48000 ) && ( GE_16( output_frame, L_FRAME16k ) && !prev_bfi && ( !old_is_transient[0] || old_is_transient[1] ) &&
4744 399 : ( ph_ecu_HqVoicing || ( ( ( GT_16( hHQ_core->env_stab_plc_fx, 16384 ) /* 0.5 in Q15 */ ) && ( LT_16( corr, 19661 ) /* 0.6 in Q15 */ ) ) || ( LT_16( hHQ_core->env_stab_plc_fx, 16384 ) /* 0.5 in Q15 */ && ( GT_16( corr, 27853 ) /* 0.85 in Q15 */ ) ) ) ) ) ) ||
4745 266 : ( LT_32( st_fx->total_brate, 48000 ) && ( ( ph_ecu_HqVoicing || GT_16( corr, 27853 ) /* 0.85 in Q15 */ ) && !prev_bfi && ( !old_is_transient[0] || old_is_transient[1] ) ) );
4746 :
4747 133 : test();
4748 133 : ivas_mode_selection = ( LT_16( N, PH_ECU_N_LIMIT ) ) || ( LT_16( corr, PH_ECU_CORR_LIMIT_Q15 ) );
4749 133 : test();
4750 133 : test();
4751 133 : test();
4752 133 : test();
4753 133 : IF( ( ( st_fx->element_mode == EVS_MONO ) && evs_mode_selection ) ||
4754 : ( ( st_fx->element_mode != EVS_MONO ) && evs_mode_selection && ivas_mode_selection ) )
4755 : {
4756 1 : ivas_fec_alg_fx( fec_alg_input, prevsynth_LP, &st_fx->hHQ_core->ni_seed_forfec, ecu_rec, output_frame, N, decimatefactor, ph_ecu_HqVoicing, gapsynth, st_fx->element_mode, st_fx->hHQ_core->old_out_fx, st_fx->hHQ_core->Q_old_wtda );
4757 1 : *last_fec = 1;
4758 1 : move16();
4759 1 : *ph_ecu_active = 0;
4760 1 : move16();
4761 1 : *time_offs = output_frame;
4762 1 : move16();
4763 : }
4764 : ELSE
4765 : {
4766 132 : ivas_hq_phase_ecu_fx( prevsynth - NS2SA_FX2( L_mult0( output_frame, FRAMES_PER_SEC ), PH_ECU_LOOKAHEAD_NS ), ecu_rec, time_offs, X_sav, Q_spec, num_p, plocs, plocsi,
4767 : env_stab, last_fec, ph_ecu_active, prev_bfi, old_is_transient,
4768 132 : mag_chg_1st, Xavg, beta_mute, st_fx->bwidth, output_frame, corr, st_fx->element_mode );
4769 :
4770 132 : *last_fec = 0;
4771 132 : move16();
4772 132 : *ph_ecu_active = 1;
4773 132 : move16();
4774 : }
4775 133 : return;
4776 : }
4777 :
4778 0 : void hq_ecu_fx(
4779 : const Word16 *prevsynth, /* i : buffer of previously synthesized signal Q0 */
4780 : Word32 *ecu_rec, /* o : reconstructed frame in tda domain */
4781 : Word16 *time_offs, /* i/o: Sample offset for consecutive frame losses Q0 */
4782 : Word16 *X_sav, /* i/o: Stored spectrum of prototype frame */
4783 : Word16 *Q_spec, /* i/o: Q value of stored spectrum */
4784 : Word16 *num_p, /* i/o: Number of identified peaks Q0 */
4785 : Word16 *plocs, /* i/o: Peak locations Q0 */
4786 : Word32 *plocsi, /* i/o: Interpolated peak locations Q16 */
4787 : const Word16 env_stab, /* i : Envelope stability parameter */
4788 : Word16 *last_fec, /* i/o: Flag for usage of pitch dependent ECU */
4789 : const Word16 ph_ecu_HqVoicing, /* i : HQ Voicing flag */
4790 : Word16 *ph_ecu_active, /* i : Phase ECU active flag */
4791 : Word16 *gapsynth, /* o : Gap synthesis */
4792 : const Word16 prev_bfi, /* i : indicating burst frame error */
4793 : const Word16 old_is_transient[2], /* i : flags indicating previous transient frames */
4794 : Word16 *mag_chg_1st, /* i/o: per band magnitude modifier for transients */
4795 : Word16 *Xavg, /* i/o: Frequency group average gain to fade to Q0 */
4796 : Word16 *beta_mute, /* o : Factor for long-term mute Q15 */
4797 : const Word16 output_frame, /* i : frame length */
4798 : Decoder_State *st_fx /* i/o: decoder state structure */
4799 : )
4800 : {
4801 : Word16 N;
4802 : Word16 decimatefactor;
4803 : Word16 corr; /*Q15 */
4804 : Word16 prevsynth_LP[2 * L_FRAME8k];
4805 : /* init (values ar changed after) */
4806 0 : decimatefactor = 4;
4807 0 : move16();
4808 0 : N = shr( output_frame, 2 );
4809 :
4810 :
4811 : /* find pitch and R value */
4812 :
4813 0 : IF( !( LT_16( output_frame, L_FRAME16k ) ) )
4814 : {
4815 0 : fec_ecu_pitch_fx( prevsynth + NS2SA_FX2( L_mult0( output_frame, 50 ), ACELP_LOOK_NS / 2 - PH_ECU_LOOKAHEAD_NS ), prevsynth_LP, output_frame, &N, &corr, &decimatefactor, ph_ecu_HqVoicing );
4816 : }
4817 : ELSE
4818 : {
4819 0 : corr = 0;
4820 0 : move16(); /* just to avoid using uninitialized value in if statement below */
4821 : }
4822 :
4823 0 : test();
4824 0 : test();
4825 0 : test();
4826 0 : test();
4827 0 : test();
4828 0 : test();
4829 0 : test();
4830 0 : test();
4831 0 : test();
4832 0 : test();
4833 0 : test();
4834 0 : test();
4835 0 : test();
4836 0 : test();
4837 0 : test();
4838 0 : IF( ( GE_32( st_fx->total_brate, 48000 ) &&
4839 : ( GE_16( output_frame, L_FRAME16k ) && !prev_bfi && ( !old_is_transient[0] || old_is_transient[1] ) && ( NE_16( ph_ecu_HqVoicing, 0 ) || ( ( ( NE_16( st_fx->hHQ_core->env_stab_plc_fx, 0 ) ) && ( LT_16( corr, 19661 ) ) ) || ( !( NE_16( st_fx->hHQ_core->env_stab_plc_fx, 0 ) ) && ( GT_16( corr, 27853 ) ) ) ) ) ) ) ||
4840 : ( LT_32( st_fx->total_brate, 48000 ) && ( ( ph_ecu_HqVoicing || GT_16( corr, 27853 ) ) && !prev_bfi && ( !old_is_transient[0] || old_is_transient[1] ) ) ) )
4841 : {
4842 :
4843 0 : fec_alg_fx( prevsynth + NS2SA_FX2( L_mult0( output_frame, 50 ), ACELP_LOOK_NS / 2 - PH_ECU_LOOKAHEAD_NS ), prevsynth_LP, &st_fx->hHQ_core->ni_seed_forfec, ecu_rec, output_frame, N, decimatefactor, ph_ecu_HqVoicing, gapsynth );
4844 0 : *last_fec = 1;
4845 0 : move16();
4846 0 : *ph_ecu_active = 0;
4847 0 : move16();
4848 0 : *time_offs = output_frame;
4849 0 : move16();
4850 : }
4851 : ELSE
4852 : {
4853 0 : hq_phase_ecu_fx( prevsynth, ecu_rec, time_offs, X_sav, Q_spec, num_p, plocs, plocsi,
4854 : env_stab, last_fec, ph_ecu_active, prev_bfi, old_is_transient,
4855 0 : mag_chg_1st, Xavg, beta_mute, st_fx->bwidth, output_frame );
4856 : }
4857 0 : return;
4858 : }
4859 :
4860 : /*******************************************************************************
4861 : * The square root of x which MUST be 0.5 <= x < 1, i.e., x must be normalized.
4862 : * sqrt(x) is approximated by a polynomial of degree n.
4863 : *
4864 : * sqrt(x) = a0 x^n + a1 x^(n-1) + a2 x^(n-2) + ... + an
4865 : * = (...((a0 x + a1) x + a2) x + ...) x + an
4866 : *
4867 : * The coefficients can be readily obtained by the following open source Octave
4868 : * (or commercial Matlab) script:
4869 : * order = 2;
4870 : * N = 400;
4871 : * x = linspace(0.5, 1.0, N);
4872 : * y = sqrt(x);
4873 : * p = polyfit(x, y, order)
4874 : * z = polyval(p, x);
4875 : * err = y - z;
4876 : * plot(err);
4877 : ******************************************************************************/
4878 :
4879 28581 : static Word16 sqrt2ndOrder( /* o: in Q15 (2nd order least square approx.) */
4880 : const Word16 x /* i: x must be in between 0.5 and 1.0 (Q15). */
4881 : )
4882 : {
4883 : Word32 acc;
4884 : Word16 z;
4885 :
4886 28581 : acc = 1890205600L; /* 0.880195572812922 in Q31 */
4887 28581 : move32();
4888 28581 : z = mac_r( acc, x, -6506 ); /* -0.198537395405340 in Q15 */
4889 28581 : acc = 682030261L; /* 0.317595089462249 in Q31 */
4890 28581 : move32();
4891 28581 : z = mac_r( acc, z, x ); /* in Q15 */
4892 28581 : return z;
4893 : }
4894 :
4895 : /*-----------------------------------------------------------------------------
4896 : * windowing()
4897 : *
4898 : * Apply a symmetric Hamming or Hamming-Rectangular window to the signal.
4899 : * If the "rectLength" parameter is zero, it is Hamming window; otherwise, the
4900 : * rectLength signifies the length of the rectangular part of the Hamming-Rectangular
4901 : * window.
4902 : *--------------------------------------------------------------------------- */
4903 108 : static void windowing(
4904 : const Word16 *x, /* i: Input signal Qx*/
4905 : Word16 *y, /* o: Windowed output Qx*/
4906 : const Word16 *win, /* i: Window coefficients Q15*/
4907 : const Word16 rectLength, /* i: Offset in between the 1st and 2nd symmetric halves of the Hamming window */
4908 : const Word16 halfLength /* i: Half of the total length of a complete Hamming window. */
4909 : )
4910 : {
4911 : Word16 i;
4912 : Word16 *pY;
4913 : const Word16 *pX, *pW;
4914 108 : pX = x;
4915 108 : pW = win;
4916 108 : pY = y;
4917 17132 : FOR( i = 0; i < halfLength; i++ ) /* 1st symmetric half of the Hamming window */
4918 : {
4919 17024 : *pY++ = mult_r( *pX++, *pW++ );
4920 17024 : move16();
4921 : }
4922 108 : FOR( i = 0; i < rectLength; i++ ) /* If rectLength is zero, it's a pure Hamming window; otherwise Hamming-Rectangular. */
4923 : {
4924 0 : *pY++ = *pX++;
4925 0 : move16();
4926 : }
4927 17132 : FOR( i = 0; i < halfLength; i++ ) /* 2nd symmetric half of the Hamming window. */
4928 : {
4929 17024 : *pY++ = mult_r( *pX++, *( --pW ) );
4930 17024 : move16();
4931 : }
4932 108 : }
4933 :
4934 : /*-----------------------------------------------------------------------------
4935 : * windowing_ROM_optimized()
4936 : *
4937 : * The coefficients of the Hamming window are derived from the sine table
4938 : * shared with fft3_fx().
4939 : * The entire Hamming-Rectangular window is decomposed into 5 segments:
4940 : * 1. 1st half of the left half of the Hamming window
4941 : * 2. 2nd half of the left half of the Hamming window
4942 : * 3. The flat part of the rectangular region
4943 : * 4. 1st half of the right half of the Hamming window
4944 : * 5. 2nd half of the right half of the Hamming window
4945 : *----------------------------------------------------------------------------*/
4946 0 : static void windowing_ROM_optimized(
4947 : const Word16 *x, /* i: Input signal Qin*/
4948 : Word16 *y, /* o: Windowed output Qin*/
4949 : const Word16 downSamples, /* i: Offset in accessing the sine table. */
4950 : const Word16 rectLength, /* i: Length of the rectangular portion (excluding the Hamming window part) */
4951 : const Word16 halfLength /* i: Half of the total length of the Hamming (excluding rectangular part) window */
4952 : )
4953 : {
4954 : Word16 i, hamm, quarterLen, initOffset;
4955 : Word16 *pY;
4956 : const Word16 *pX, *pSine;
4957 : Word32 acc;
4958 :
4959 0 : quarterLen = shr( halfLength, 1 ); /* 1/4 length of the entire Hamming (excluding the rectangular part) window. */
4960 0 : initOffset = add( T_SIN_PI_2, shr( downSamples, 1 ) );
4961 0 : pSine = sincos_t_rad3_fx + initOffset; // Q15
4962 0 : pX = x;
4963 0 : pY = y;
4964 :
4965 : /* 1st half of the left half of the Hamming window. */
4966 0 : FOR( i = 0; i < quarterLen; i++ )
4967 : {
4968 0 : pSine -= downSamples; /* Decrement address counter */
4969 0 : acc = L_deposit_h( FEC_HQ_WIN_A0 ); /* Derive the Hamming window coefficient from the sine table. Q31*/
4970 0 : hamm = msu_r( acc, *pSine, FEC_HQ_WIN_A1 ); // Q15
4971 0 : *pY++ = mult_r( hamm, *pX++ ); // Qin
4972 0 : move16();
4973 : }
4974 :
4975 : /* 2nd half of the left half of the Hamming window. */
4976 0 : FOR( i = 0; i < quarterLen; i++ )
4977 : {
4978 0 : acc = L_deposit_h( FEC_HQ_WIN_A0 );
4979 0 : hamm = mac_r_sat( acc, *pSine, FEC_HQ_WIN_A1 );
4980 0 : *pY++ = mult_r( hamm, *pX++ );
4981 0 : move16();
4982 0 : pSine += downSamples; /* Increment address counter */
4983 : }
4984 :
4985 : /* The rectangular flat region */
4986 0 : FOR( i = 0; i < rectLength; i++ )
4987 : {
4988 0 : *pY++ = *pX++;
4989 0 : move16();
4990 : }
4991 :
4992 : /* 1st half of the right half of the Hamming window. */
4993 0 : FOR( i = 0; i < quarterLen; i++ )
4994 : {
4995 0 : pSine -= downSamples; /* Decrement address counter */
4996 0 : acc = L_deposit_h( FEC_HQ_WIN_A0 ); // Q31
4997 0 : hamm = mac_r_sat( acc, *pSine, FEC_HQ_WIN_A1 ); // Q15
4998 0 : *pY++ = mult_r( hamm, *pX++ );
4999 0 : move16();
5000 : }
5001 :
5002 : /* 2nd half of the right half of the Hamming window. */
5003 0 : FOR( i = 0; i < quarterLen; i++ )
5004 : {
5005 0 : acc = L_deposit_h( FEC_HQ_WIN_A0 );
5006 0 : hamm = msu_r( acc, *pSine, FEC_HQ_WIN_A1 );
5007 0 : *pY++ = mult_r( hamm, *pX++ );
5008 0 : move16();
5009 0 : pSine += downSamples; /* Increment address counter */
5010 : }
5011 0 : }
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