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Diffstat (limited to 'lib/rbcodec/codecs/libopus/silk/fixed/main_FIX.h')
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1 | /*********************************************************************** | ||
2 | Copyright (c) 2006-2011, Skype Limited. All rights reserved. | ||
3 | Redistribution and use in source and binary forms, with or without | ||
4 | modification, are permitted provided that the following conditions | ||
5 | are met: | ||
6 | - Redistributions of source code must retain the above copyright notice, | ||
7 | this list of conditions and the following disclaimer. | ||
8 | - Redistributions in binary form must reproduce the above copyright | ||
9 | notice, this list of conditions and the following disclaimer in the | ||
10 | documentation and/or other materials provided with the distribution. | ||
11 | - Neither the name of Internet Society, IETF or IETF Trust, nor the | ||
12 | names of specific contributors, may be used to endorse or promote | ||
13 | products derived from this software without specific prior written | ||
14 | permission. | ||
15 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
16 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
17 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
18 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | ||
19 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
20 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
21 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | ||
22 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | ||
23 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
24 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
25 | POSSIBILITY OF SUCH DAMAGE. | ||
26 | ***********************************************************************/ | ||
27 | |||
28 | #ifndef SILK_MAIN_FIX_H | ||
29 | #define SILK_MAIN_FIX_H | ||
30 | |||
31 | #include "SigProc_FIX.h" | ||
32 | #include "structs_FIX.h" | ||
33 | #include "control.h" | ||
34 | #include "main.h" | ||
35 | #include "PLC.h" | ||
36 | #include "debug.h" | ||
37 | #include "entenc.h" | ||
38 | |||
39 | #if ((defined(OPUS_ARM_ASM) && defined(FIXED_POINT)) \ | ||
40 | || defined(OPUS_ARM_MAY_HAVE_NEON_INTR)) | ||
41 | #include "fixed/arm/warped_autocorrelation_FIX_arm.h" | ||
42 | #endif | ||
43 | |||
44 | #ifndef FORCE_CPP_BUILD | ||
45 | #ifdef __cplusplus | ||
46 | extern "C" | ||
47 | { | ||
48 | #endif | ||
49 | #endif | ||
50 | |||
51 | #define silk_encoder_state_Fxx silk_encoder_state_FIX | ||
52 | #define silk_encode_do_VAD_Fxx silk_encode_do_VAD_FIX | ||
53 | #define silk_encode_frame_Fxx silk_encode_frame_FIX | ||
54 | |||
55 | #define QC 10 | ||
56 | #define QS 13 | ||
57 | |||
58 | /*********************/ | ||
59 | /* Encoder Functions */ | ||
60 | /*********************/ | ||
61 | |||
62 | /* High-pass filter with cutoff frequency adaptation based on pitch lag statistics */ | ||
63 | void silk_HP_variable_cutoff( | ||
64 | silk_encoder_state_Fxx state_Fxx[] /* I/O Encoder states */ | ||
65 | ); | ||
66 | |||
67 | /* Encoder main function */ | ||
68 | void silk_encode_do_VAD_FIX( | ||
69 | silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk FIX encoder state */ | ||
70 | opus_int activity /* I Decision of Opus voice activity detector */ | ||
71 | ); | ||
72 | |||
73 | /* Encoder main function */ | ||
74 | opus_int silk_encode_frame_FIX( | ||
75 | silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk FIX encoder state */ | ||
76 | opus_int32 *pnBytesOut, /* O Pointer to number of payload bytes; */ | ||
77 | ec_enc *psRangeEnc, /* I/O compressor data structure */ | ||
78 | opus_int condCoding, /* I The type of conditional coding to use */ | ||
79 | opus_int maxBits, /* I If > 0: maximum number of output bits */ | ||
80 | opus_int useCBR /* I Flag to force constant-bitrate operation */ | ||
81 | ); | ||
82 | |||
83 | /* Initializes the Silk encoder state */ | ||
84 | opus_int silk_init_encoder( | ||
85 | silk_encoder_state_Fxx *psEnc, /* I/O Pointer to Silk FIX encoder state */ | ||
86 | int arch /* I Run-time architecture */ | ||
87 | ); | ||
88 | |||
89 | /* Control the Silk encoder */ | ||
90 | opus_int silk_control_encoder( | ||
91 | silk_encoder_state_Fxx *psEnc, /* I/O Pointer to Silk encoder state */ | ||
92 | silk_EncControlStruct *encControl, /* I Control structure */ | ||
93 | const opus_int allow_bw_switch, /* I Flag to allow switching audio bandwidth */ | ||
94 | const opus_int channelNb, /* I Channel number */ | ||
95 | const opus_int force_fs_kHz | ||
96 | ); | ||
97 | |||
98 | /**************************/ | ||
99 | /* Noise shaping analysis */ | ||
100 | /**************************/ | ||
101 | /* Compute noise shaping coefficients and initial gain values */ | ||
102 | void silk_noise_shape_analysis_FIX( | ||
103 | silk_encoder_state_FIX *psEnc, /* I/O Encoder state FIX */ | ||
104 | silk_encoder_control_FIX *psEncCtrl, /* I/O Encoder control FIX */ | ||
105 | const opus_int16 *pitch_res, /* I LPC residual from pitch analysis */ | ||
106 | const opus_int16 *x, /* I Input signal [ frame_length + la_shape ] */ | ||
107 | int arch /* I Run-time architecture */ | ||
108 | ); | ||
109 | |||
110 | /* Autocorrelations for a warped frequency axis */ | ||
111 | void silk_warped_autocorrelation_FIX_c( | ||
112 | opus_int32 *corr, /* O Result [order + 1] */ | ||
113 | opus_int *scale, /* O Scaling of the correlation vector */ | ||
114 | const opus_int16 *input, /* I Input data to correlate */ | ||
115 | const opus_int warping_Q16, /* I Warping coefficient */ | ||
116 | const opus_int length, /* I Length of input */ | ||
117 | const opus_int order /* I Correlation order (even) */ | ||
118 | ); | ||
119 | |||
120 | #if !defined(OVERRIDE_silk_warped_autocorrelation_FIX) | ||
121 | #define silk_warped_autocorrelation_FIX(corr, scale, input, warping_Q16, length, order, arch) \ | ||
122 | ((void)(arch), silk_warped_autocorrelation_FIX_c(corr, scale, input, warping_Q16, length, order)) | ||
123 | #endif | ||
124 | |||
125 | /* Calculation of LTP state scaling */ | ||
126 | void silk_LTP_scale_ctrl_FIX( | ||
127 | silk_encoder_state_FIX *psEnc, /* I/O encoder state */ | ||
128 | silk_encoder_control_FIX *psEncCtrl, /* I/O encoder control */ | ||
129 | opus_int condCoding /* I The type of conditional coding to use */ | ||
130 | ); | ||
131 | |||
132 | /**********************************************/ | ||
133 | /* Prediction Analysis */ | ||
134 | /**********************************************/ | ||
135 | /* Find pitch lags */ | ||
136 | void silk_find_pitch_lags_FIX( | ||
137 | silk_encoder_state_FIX *psEnc, /* I/O encoder state */ | ||
138 | silk_encoder_control_FIX *psEncCtrl, /* I/O encoder control */ | ||
139 | opus_int16 res[], /* O residual */ | ||
140 | const opus_int16 x[], /* I Speech signal */ | ||
141 | int arch /* I Run-time architecture */ | ||
142 | ); | ||
143 | |||
144 | /* Find LPC and LTP coefficients */ | ||
145 | void silk_find_pred_coefs_FIX( | ||
146 | silk_encoder_state_FIX *psEnc, /* I/O encoder state */ | ||
147 | silk_encoder_control_FIX *psEncCtrl, /* I/O encoder control */ | ||
148 | const opus_int16 res_pitch[], /* I Residual from pitch analysis */ | ||
149 | const opus_int16 x[], /* I Speech signal */ | ||
150 | opus_int condCoding /* I The type of conditional coding to use */ | ||
151 | ); | ||
152 | |||
153 | /* LPC analysis */ | ||
154 | void silk_find_LPC_FIX( | ||
155 | silk_encoder_state *psEncC, /* I/O Encoder state */ | ||
156 | opus_int16 NLSF_Q15[], /* O NLSFs */ | ||
157 | const opus_int16 x[], /* I Input signal */ | ||
158 | const opus_int32 minInvGain_Q30 /* I Inverse of max prediction gain */ | ||
159 | ); | ||
160 | |||
161 | /* LTP analysis */ | ||
162 | void silk_find_LTP_FIX( | ||
163 | opus_int32 XXLTP_Q17[ MAX_NB_SUBFR * LTP_ORDER * LTP_ORDER ], /* O Correlation matrix */ | ||
164 | opus_int32 xXLTP_Q17[ MAX_NB_SUBFR * LTP_ORDER ], /* O Correlation vector */ | ||
165 | const opus_int16 r_lpc[], /* I Residual signal after LPC */ | ||
166 | const opus_int lag[ MAX_NB_SUBFR ], /* I LTP lags */ | ||
167 | const opus_int subfr_length, /* I Subframe length */ | ||
168 | const opus_int nb_subfr, /* I Number of subframes */ | ||
169 | int arch /* I Run-time architecture */ | ||
170 | ); | ||
171 | |||
172 | void silk_LTP_analysis_filter_FIX( | ||
173 | opus_int16 *LTP_res, /* O LTP residual signal of length MAX_NB_SUBFR * ( pre_length + subfr_length ) */ | ||
174 | const opus_int16 *x, /* I Pointer to input signal with at least max( pitchL ) preceding samples */ | ||
175 | const opus_int16 LTPCoef_Q14[ LTP_ORDER * MAX_NB_SUBFR ],/* I LTP_ORDER LTP coefficients for each MAX_NB_SUBFR subframe */ | ||
176 | const opus_int pitchL[ MAX_NB_SUBFR ], /* I Pitch lag, one for each subframe */ | ||
177 | const opus_int32 invGains_Q16[ MAX_NB_SUBFR ], /* I Inverse quantization gains, one for each subframe */ | ||
178 | const opus_int subfr_length, /* I Length of each subframe */ | ||
179 | const opus_int nb_subfr, /* I Number of subframes */ | ||
180 | const opus_int pre_length /* I Length of the preceding samples starting at &x[0] for each subframe */ | ||
181 | ); | ||
182 | |||
183 | /* Calculates residual energies of input subframes where all subframes have LPC_order */ | ||
184 | /* of preceding samples */ | ||
185 | void silk_residual_energy_FIX( | ||
186 | opus_int32 nrgs[ MAX_NB_SUBFR ], /* O Residual energy per subframe */ | ||
187 | opus_int nrgsQ[ MAX_NB_SUBFR ], /* O Q value per subframe */ | ||
188 | const opus_int16 x[], /* I Input signal */ | ||
189 | opus_int16 a_Q12[ 2 ][ MAX_LPC_ORDER ], /* I AR coefs for each frame half */ | ||
190 | const opus_int32 gains[ MAX_NB_SUBFR ], /* I Quantization gains */ | ||
191 | const opus_int subfr_length, /* I Subframe length */ | ||
192 | const opus_int nb_subfr, /* I Number of subframes */ | ||
193 | const opus_int LPC_order, /* I LPC order */ | ||
194 | int arch /* I Run-time architecture */ | ||
195 | ); | ||
196 | |||
197 | /* Residual energy: nrg = wxx - 2 * wXx * c + c' * wXX * c */ | ||
198 | opus_int32 silk_residual_energy16_covar_FIX( | ||
199 | const opus_int16 *c, /* I Prediction vector */ | ||
200 | const opus_int32 *wXX, /* I Correlation matrix */ | ||
201 | const opus_int32 *wXx, /* I Correlation vector */ | ||
202 | opus_int32 wxx, /* I Signal energy */ | ||
203 | opus_int D, /* I Dimension */ | ||
204 | opus_int cQ /* I Q value for c vector 0 - 15 */ | ||
205 | ); | ||
206 | |||
207 | /* Processing of gains */ | ||
208 | void silk_process_gains_FIX( | ||
209 | silk_encoder_state_FIX *psEnc, /* I/O Encoder state */ | ||
210 | silk_encoder_control_FIX *psEncCtrl, /* I/O Encoder control */ | ||
211 | opus_int condCoding /* I The type of conditional coding to use */ | ||
212 | ); | ||
213 | |||
214 | /******************/ | ||
215 | /* Linear Algebra */ | ||
216 | /******************/ | ||
217 | /* Calculates correlation matrix X'*X */ | ||
218 | void silk_corrMatrix_FIX( | ||
219 | const opus_int16 *x, /* I x vector [L + order - 1] used to form data matrix X */ | ||
220 | const opus_int L, /* I Length of vectors */ | ||
221 | const opus_int order, /* I Max lag for correlation */ | ||
222 | opus_int32 *XX, /* O Pointer to X'*X correlation matrix [ order x order ] */ | ||
223 | opus_int32 *nrg, /* O Energy of x vector */ | ||
224 | opus_int *rshifts, /* O Right shifts of correlations */ | ||
225 | int arch /* I Run-time architecture */ | ||
226 | ); | ||
227 | |||
228 | /* Calculates correlation vector X'*t */ | ||
229 | void silk_corrVector_FIX( | ||
230 | const opus_int16 *x, /* I x vector [L + order - 1] used to form data matrix X */ | ||
231 | const opus_int16 *t, /* I Target vector [L] */ | ||
232 | const opus_int L, /* I Length of vectors */ | ||
233 | const opus_int order, /* I Max lag for correlation */ | ||
234 | opus_int32 *Xt, /* O Pointer to X'*t correlation vector [order] */ | ||
235 | const opus_int rshifts, /* I Right shifts of correlations */ | ||
236 | int arch /* I Run-time architecture */ | ||
237 | ); | ||
238 | |||
239 | #ifndef FORCE_CPP_BUILD | ||
240 | #ifdef __cplusplus | ||
241 | } | ||
242 | #endif /* __cplusplus */ | ||
243 | #endif /* FORCE_CPP_BUILD */ | ||
244 | #endif /* SILK_MAIN_FIX_H */ | ||