Line data Source code
1 : /******************************************************************************************************
2 :
3 : (C) 2022-2025 IVAS codec Public Collaboration with portions copyright Dolby International AB, Ericsson AB,
4 : Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Huawei Technologies Co. LTD.,
5 : Koninklijke Philips N.V., Nippon Telegraph and Telephone Corporation, Nokia Technologies Oy, Orange,
6 : Panasonic Holdings Corporation, Qualcomm Technologies, Inc., VoiceAge Corporation, and other
7 : contributors to this repository. All Rights Reserved.
8 :
9 : This software is protected by copyright law and by international treaties.
10 : The IVAS codec Public Collaboration consisting of Dolby International AB, Ericsson AB,
11 : Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Huawei Technologies Co. LTD.,
12 : Koninklijke Philips N.V., Nippon Telegraph and Telephone Corporation, Nokia Technologies Oy, Orange,
13 : Panasonic Holdings Corporation, Qualcomm Technologies, Inc., VoiceAge Corporation, and other
14 : contributors to this repository retain full ownership rights in their respective contributions in
15 : the software. This notice grants no license of any kind, including but not limited to patent
16 : license, nor is any license granted by implication, estoppel or otherwise.
17 :
18 : Contributors are required to enter into the IVAS codec Public Collaboration agreement before making
19 : contributions.
20 :
21 : This software is provided "AS IS", without any express or implied warranties. The software is in the
22 : development stage. It is intended exclusively for experts who have experience with such software and
23 : solely for the purpose of inspection. All implied warranties of non-infringement, merchantability
24 : and fitness for a particular purpose are hereby disclaimed and excluded.
25 :
26 : Any dispute, controversy or claim arising under or in relation to providing this software shall be
27 : submitted to and settled by the final, binding jurisdiction of the courts of Munich, Germany in
28 : accordance with the laws of the Federal Republic of Germany excluding its conflict of law rules and
29 : the United Nations Convention on Contracts on the International Sales of Goods.
30 :
31 : *******************************************************************************************************/
32 :
33 : /*====================================================================================
34 : EVS Codec 3GPP TS26.443 Nov 04, 2021. Version 12.14.0 / 13.10.0 / 14.6.0 / 15.4.0 / 16.3.0
35 : ====================================================================================*/
36 :
37 : #include <assert.h>
38 : #include <stdint.h>
39 : #include "options.h"
40 : #ifdef DEBUGGING
41 : #include "debug.h"
42 : #endif
43 : #include "cnst.h"
44 : #include "basop_proto_func.h"
45 : #include "stl.h"
46 : #include "prot.h"
47 : #include "rom_com.h"
48 :
49 : #define WMC_TOOL_SKIP
50 :
51 : /* compare two positive normalized 16 bit mantissa/exponent values */
52 : /* return value: positive if first value greater, negative if second value greater, zero if equal */
53 705364 : static Word16 compMantExp16Unorm( Word16 m1, Word16 e1, Word16 m2, Word16 e2 )
54 : {
55 : Word16 tmp;
56 :
57 705364 : assert( ( m1 >= 0x4000 ) && ( m2 >= 0x4000 ) ); /* comparisons below work only for normalized mantissas */
58 :
59 705364 : tmp = sub( e1, e2 );
60 705364 : if ( tmp == 0 )
61 441960 : tmp = sub( m1, m2 );
62 :
63 705364 : return tmp;
64 : }
65 :
66 82984 : void basop_lpc2mdct( Word16 *lpcCoeffs, Word16 lpcOrder, Word16 *mdct_gains, Word16 *mdct_gains_exp, Word16 *mdct_inv_gains, Word16 *mdct_inv_gains_exp )
67 : {
68 : Word32 RealData[FDNS_NPTS];
69 : Word32 ImagData[FDNS_NPTS];
70 : Word16 i, j, k, step, scale, s, tmp16;
71 : Word16 g, g_e, ig, ig_e;
72 : Word32 tmp32;
73 : const PWord16 *ptwiddle;
74 :
75 :
76 : /* short-cut, to avoid calling of BASOP_getTables() */
77 82984 : ptwiddle = SineTable512_fx;
78 82984 : step = 8;
79 :
80 : /*ODFT*/
81 82984 : assert( lpcOrder < FDNS_NPTS );
82 :
83 : /* pre-twiddle */
84 1535204 : FOR( i = 0; i <= lpcOrder; i++ )
85 : {
86 1452220 : RealData[i] = L_mult( lpcCoeffs[i], ptwiddle->v.re );
87 1452220 : move32();
88 1452220 : ImagData[i] = L_negate( L_mult( lpcCoeffs[i], ptwiddle->v.im ) );
89 1452220 : move32();
90 1452220 : ptwiddle += step;
91 : }
92 :
93 : /* zero padding */
94 3941740 : FOR( ; i < FDNS_NPTS; i++ )
95 : {
96 3858756 : RealData[i] = 0;
97 3858756 : move32();
98 3858756 : ImagData[i] = 0;
99 3858756 : move32();
100 : }
101 :
102 : /* half length FFT */
103 82984 : scale = add( norm_s( lpcCoeffs[0] ), 1 );
104 82984 : move16();
105 82984 : BASOP_cfft( RealData, ImagData, 1, &scale ); /* sizeOfFft == FDNS_NPTS == 8 */
106 :
107 :
108 : /*Get amplitude*/
109 82984 : j = FDNS_NPTS - 1;
110 82984 : k = 0;
111 82984 : move16();
112 :
113 2738472 : FOR( i = 0; i < FDNS_NPTS / 2; i++ )
114 : {
115 2655488 : s = sub( norm_l( L_max( L_abs( RealData[i] ), L_abs( ImagData[i] ) ) ), 1 );
116 :
117 2655488 : tmp16 = extract_h( L_shl( RealData[i], s ) );
118 2655488 : tmp32 = L_mult( tmp16, tmp16 );
119 :
120 2655488 : tmp16 = extract_h( L_shl( ImagData[i], s ) );
121 2655488 : tmp16 = mac_r( tmp32, tmp16, tmp16 );
122 :
123 2655488 : s = shl( sub( scale, s ), 1 );
124 :
125 2655488 : if ( tmp16 == 0 )
126 : {
127 0 : s = -16;
128 0 : move16();
129 : }
130 2655488 : if ( tmp16 == 0 )
131 : {
132 0 : tmp16 = 1;
133 0 : move16();
134 : }
135 :
136 2655488 : BASOP_Util_Sqrt_InvSqrt_MantExp( tmp16, s, &g, &g_e, &ig, &ig_e );
137 :
138 2655488 : if ( mdct_gains != NULL )
139 : {
140 1327744 : mdct_gains[k] = g;
141 1327744 : move16();
142 : }
143 :
144 2655488 : if ( mdct_gains_exp != NULL )
145 : {
146 1327744 : mdct_gains_exp[k] = g_e;
147 1327744 : move16();
148 : }
149 :
150 2655488 : if ( mdct_inv_gains != NULL )
151 : {
152 1327744 : mdct_inv_gains[k] = ig;
153 1327744 : move16();
154 : }
155 :
156 2655488 : if ( mdct_inv_gains_exp != NULL )
157 : {
158 1327744 : mdct_inv_gains_exp[k] = ig_e;
159 1327744 : move16();
160 : }
161 :
162 2655488 : k = add( k, 1 );
163 :
164 :
165 2655488 : s = sub( norm_l( L_max( L_abs( RealData[j] ), L_abs( ImagData[j] ) ) ), 1 );
166 :
167 2655488 : tmp16 = extract_h( L_shl( RealData[j], s ) );
168 2655488 : tmp32 = L_mult( tmp16, tmp16 );
169 :
170 2655488 : tmp16 = extract_h( L_shl( ImagData[j], s ) );
171 2655488 : tmp16 = mac_r( tmp32, tmp16, tmp16 );
172 :
173 2655488 : s = shl( sub( scale, s ), 1 );
174 :
175 2655488 : if ( tmp16 == 0 )
176 : {
177 0 : s = -16;
178 0 : move16();
179 : }
180 2655488 : if ( tmp16 == 0 )
181 : {
182 0 : tmp16 = 1;
183 0 : move16();
184 : }
185 :
186 2655488 : BASOP_Util_Sqrt_InvSqrt_MantExp( tmp16, s, &g, &g_e, &ig, &ig_e );
187 :
188 2655488 : if ( mdct_gains != NULL )
189 : {
190 1327744 : mdct_gains[k] = g;
191 1327744 : move16();
192 : }
193 :
194 2655488 : if ( mdct_gains_exp != NULL )
195 : {
196 1327744 : mdct_gains_exp[k] = g_e;
197 1327744 : move16();
198 : }
199 :
200 2655488 : if ( mdct_inv_gains != NULL )
201 : {
202 1327744 : mdct_inv_gains[k] = ig;
203 1327744 : move16();
204 : }
205 :
206 2655488 : if ( mdct_inv_gains_exp != NULL )
207 : {
208 1327744 : mdct_inv_gains_exp[k] = ig_e;
209 1327744 : move16();
210 : }
211 :
212 2655488 : j = sub( j, 1 );
213 2655488 : k = add( k, 1 );
214 : }
215 82984 : }
216 :
217 :
218 41492 : void basop_mdct_noiseShaping_interp( Word32 x[], Word16 lg, Word16 gains[], Word16 gains_exp[] )
219 : {
220 : Word16 i, j, jp, jn, k, l;
221 : Word16 g, pg, ng, e, tmp;
222 :
223 :
224 41492 : assert( lg % FDNS_NPTS == 0 );
225 41492 : k = shr( lg, 6 ); /* FDNS_NPTS = 64 */
226 :
227 41492 : IF( gains != NULL )
228 : {
229 : /* Linear interpolation */
230 41492 : IF( sub( k, 4 ) == 0 )
231 : {
232 37981 : jp = 0;
233 37981 : move16();
234 37981 : j = 0;
235 37981 : move16();
236 37981 : jn = 1;
237 37981 : move16();
238 :
239 2468765 : FOR( i = 0; i < lg; i += 4 )
240 : {
241 2430784 : pg = gains[jp];
242 2430784 : move16();
243 2430784 : g = gains[j];
244 2430784 : move16();
245 2430784 : ng = gains[jn];
246 2430784 : move16();
247 :
248 : /* common exponent for pg and g */
249 2430784 : tmp = sub( gains_exp[j], gains_exp[jp] );
250 2430784 : if ( tmp > 0 )
251 259611 : pg = shr( pg, tmp );
252 2430784 : if ( tmp < 0 )
253 153381 : g = shl( g, tmp );
254 2430784 : e = s_max( gains_exp[j], gains_exp[jp] );
255 :
256 2430784 : tmp = mac_r( L_mult( pg, FL2WORD16( 0.375f ) ), g, FL2WORD16( 0.625f ) );
257 2430784 : x[i] = L_shl( Mpy_32_16( x[i], tmp ), e );
258 2430784 : move32();
259 :
260 2430784 : tmp = mac_r( L_mult( pg, FL2WORD16( 0.125f ) ), g, FL2WORD16( 0.875f ) );
261 2430784 : x[i + 1] = L_shl( Mpy_32_16( x[i + 1], tmp ), e );
262 2430784 : move32();
263 :
264 : /* common exponent for g and ng */
265 2430784 : g = gains[j];
266 2430784 : move16();
267 2430784 : tmp = sub( gains_exp[j], gains_exp[jn] );
268 2430784 : if ( tmp > 0 )
269 153381 : ng = shr( ng, tmp );
270 2430784 : if ( tmp < 0 )
271 259611 : g = shl( g, tmp );
272 2430784 : e = s_max( gains_exp[j], gains_exp[jn] );
273 :
274 2430784 : tmp = mac_r( L_mult( g, FL2WORD16( 0.875f ) ), ng, FL2WORD16( 0.125f ) );
275 2430784 : x[i + 2] = L_shl( Mpy_32_16( x[i + 2], tmp ), e );
276 2430784 : move32();
277 :
278 2430784 : tmp = mac_r( L_mult( g, FL2WORD16( 0.625f ) ), ng, FL2WORD16( 0.375f ) );
279 2430784 : x[i + 3] = L_shl( Mpy_32_16( x[i + 3], tmp ), e );
280 2430784 : move32();
281 :
282 2430784 : jp = j;
283 2430784 : move16();
284 2430784 : j = jn;
285 2430784 : move16();
286 2430784 : jn = s_min( add( jn, 1 ), FDNS_NPTS - 1 );
287 : }
288 : }
289 3511 : ELSE IF( sub( k, 5 ) == 0 )
290 : {
291 3511 : jp = 0;
292 3511 : move16();
293 3511 : j = 0;
294 3511 : move16();
295 3511 : jn = 1;
296 3511 : move16();
297 :
298 228215 : FOR( i = 0; i < lg; i += 5 )
299 : {
300 224704 : pg = gains[jp];
301 224704 : move16();
302 224704 : g = gains[j];
303 224704 : move16();
304 224704 : ng = gains[jn];
305 224704 : move16();
306 :
307 : /* common exponent for pg and g */
308 224704 : tmp = sub( gains_exp[j], gains_exp[jp] );
309 224704 : if ( tmp > 0 )
310 23678 : pg = shr( pg, tmp );
311 224704 : if ( tmp < 0 )
312 13832 : g = shl( g, tmp );
313 224704 : e = s_max( gains_exp[j], gains_exp[jp] );
314 :
315 224704 : tmp = mac_r( L_mult( pg, FL2WORD16( 0.40f ) ), g, FL2WORD16( 0.60f ) );
316 224704 : x[i] = L_shl( Mpy_32_16( x[i], tmp ), e );
317 224704 : move32();
318 :
319 224704 : tmp = mac_r( L_mult( pg, FL2WORD16( 0.20f ) ), g, FL2WORD16( 0.80f ) );
320 224704 : x[i + 1] = L_shl( Mpy_32_16( x[i + 1], tmp ), e );
321 224704 : move32();
322 :
323 :
324 224704 : x[i + 2] = L_shl( Mpy_32_16( x[i + 2], gains[j] ), gains_exp[j] );
325 224704 : move32();
326 :
327 : /* common exponent for g and ng */
328 224704 : g = gains[j];
329 224704 : move16();
330 224704 : tmp = sub( gains_exp[j], gains_exp[jn] );
331 224704 : if ( tmp > 0 )
332 13832 : ng = shr( ng, tmp );
333 224704 : if ( tmp < 0 )
334 23678 : g = shl( g, tmp );
335 224704 : e = s_max( gains_exp[j], gains_exp[jn] );
336 :
337 224704 : tmp = mac_r( L_mult( g, FL2WORD16( 0.80f ) ), ng, FL2WORD16( 0.20f ) );
338 224704 : x[i + 3] = L_shl( Mpy_32_16( x[i + 3], tmp ), e );
339 224704 : move32();
340 :
341 224704 : tmp = mac_r( L_mult( g, FL2WORD16( 0.60f ) ), ng, FL2WORD16( 0.40f ) );
342 224704 : x[i + 4] = L_shl( Mpy_32_16( x[i + 4], tmp ), e );
343 224704 : move32();
344 :
345 224704 : jp = j;
346 224704 : move16();
347 224704 : j = jn;
348 224704 : move16();
349 224704 : jn = s_min( add( jn, 1 ), FDNS_NPTS - 1 );
350 : }
351 : }
352 : ELSE /* no interpolation */
353 : {
354 0 : FOR( i = 0; i < FDNS_NPTS; i++ )
355 : {
356 0 : FOR( l = 0; l < k; l++ )
357 : {
358 0 : *x = L_shl( Mpy_32_16( *x, *gains ), *gains_exp );
359 0 : move32();
360 0 : x++;
361 : }
362 :
363 0 : gains++;
364 0 : gains_exp++;
365 : }
366 : }
367 : }
368 41492 : }
369 :
370 :
371 41492 : void basop_PsychAdaptLowFreqDeemph( Word32 x[], const Word16 lpcGains[], const Word16 lpcGains_e[], Word16 lf_deemph_factors[] )
372 : {
373 : Word16 i;
374 : Word16 max_val, max_e, fac, min_val, min_e, tmp, tmp_e;
375 : Word32 L_tmp;
376 :
377 :
378 41492 : assert( lpcGains[0] >= 0x4000 );
379 :
380 41492 : max_val = lpcGains[0];
381 41492 : move16();
382 41492 : max_e = lpcGains_e[0];
383 41492 : move16();
384 41492 : min_val = lpcGains[0];
385 41492 : move16();
386 41492 : min_e = lpcGains_e[0];
387 41492 : move16();
388 :
389 : /* find minimum (min) and maximum (max) of LPC gains in low frequencies */
390 373428 : FOR( i = 1; i < 9; i++ )
391 : {
392 331936 : IF( compMantExp16Unorm( lpcGains[i], lpcGains_e[i], min_val, min_e ) < 0 )
393 : {
394 221107 : min_val = lpcGains[i];
395 221107 : move16();
396 221107 : min_e = lpcGains_e[i];
397 221107 : move16();
398 : }
399 :
400 331936 : IF( compMantExp16Unorm( lpcGains[i], lpcGains_e[i], max_val, max_e ) > 0 )
401 : {
402 78072 : max_val = lpcGains[i];
403 78072 : move16();
404 78072 : max_e = lpcGains_e[i];
405 78072 : move16();
406 : }
407 : }
408 :
409 41492 : min_e = add( min_e, 5 ); /* min *= 32.0f; */
410 :
411 41492 : test();
412 41492 : IF( ( compMantExp16Unorm( max_val, max_e, min_val, min_e ) < 0 ) && ( min_val > 0 ) )
413 : {
414 : /* fac = tmp = (float)pow(max / min, 0.0078125f); */
415 41492 : tmp_e = min_e;
416 41492 : move16();
417 41492 : tmp = Inv16( min_val, &tmp_e );
418 41492 : L_tmp = L_shl( L_mult( tmp, max_val ), add( tmp_e, max_e ) ); /* Q31 */
419 41492 : L_tmp = BASOP_Util_Log2( L_tmp ); /* Q25 */
420 41492 : L_tmp = L_shr( L_tmp, 7 ); /* 0.0078125f = 1.f/(1<<7) */
421 41492 : L_tmp = BASOP_Util_InvLog2( L_tmp ); /* Q31 */
422 41492 : tmp = round_fx( L_tmp ); /* Q15 */
423 41492 : fac = tmp; /* Q15 */
424 41492 : move16();
425 :
426 : /* gradual lowering of lowest 32 bins; DC is lowered by (max/tmp)^1/4 */
427 1369236 : FOR( i = 31; i >= 0; i-- )
428 : {
429 1327744 : x[i] = Mpy_32_16( x[i], fac );
430 1327744 : move32();
431 1327744 : if ( lf_deemph_factors != NULL )
432 : {
433 0 : lf_deemph_factors[i] = mult_r( lf_deemph_factors[i], fac );
434 0 : move16();
435 : }
436 1327744 : fac = mult_r( fac, tmp );
437 : }
438 : }
439 41492 : }
440 :
441 : #undef WMC_TOOL_SKIP
|
