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Side by Side Diff: silk/fixed/prefilter_FIX.c

Issue 107243004: Updating Opus to release 1.1 (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/opus
Patch Set: Created 7 years ago
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1 /*********************************************************************** 1 /***********************************************************************
2 Copyright (c) 2006-2011, Skype Limited. All rights reserved. 2 Copyright (c) 2006-2011, Skype Limited. All rights reserved.
3 Redistribution and use in source and binary forms, with or without 3 Redistribution and use in source and binary forms, with or without
4 modification, are permitted provided that the following conditions 4 modification, are permitted provided that the following conditions
5 are met: 5 are met:
6 - Redistributions of source code must retain the above copyright notice, 6 - Redistributions of source code must retain the above copyright notice,
7 this list of conditions and the following disclaimer. 7 this list of conditions and the following disclaimer.
8 - Redistributions in binary form must reproduce the above copyright 8 - Redistributions in binary form must reproduce the above copyright
9 notice, this list of conditions and the following disclaimer in the 9 notice, this list of conditions and the following disclaimer in the
10 documentation and/or other materials provided with the distribution. 10 documentation and/or other materials provided with the distribution.
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27 27
28 #ifdef HAVE_CONFIG_H 28 #ifdef HAVE_CONFIG_H
29 #include "config.h" 29 #include "config.h"
30 #endif 30 #endif
31 31
32 #include "main_FIX.h" 32 #include "main_FIX.h"
33 #include "stack_alloc.h" 33 #include "stack_alloc.h"
34 #include "tuning_parameters.h" 34 #include "tuning_parameters.h"
35 35
36 /* Prefilter for finding Quantizer input signal */ 36 /* Prefilter for finding Quantizer input signal */
37 static inline void silk_prefilt_FIX( 37 static OPUS_INLINE void silk_prefilt_FIX(
38 silk_prefilter_state_FIX *P, /* I/O state */ 38 silk_prefilter_state_FIX *P, /* I/O state */
39 opus_int32 st_res_Q12[], /* I short term r esidual signal */ 39 opus_int32 st_res_Q12[], /* I short term r esidual signal */
40 opus_int32 xw_Q3[], /* O prefiltered signal */ 40 opus_int32 xw_Q3[], /* O prefiltered signal */
41 opus_int32 HarmShapeFIRPacked_Q12, /* I Harmonic sha ping coeficients */ 41 opus_int32 HarmShapeFIRPacked_Q12, /* I Harmonic sha ping coeficients */
42 opus_int Tilt_Q14, /* I Tilt shaping coeficient */ 42 opus_int Tilt_Q14, /* I Tilt shaping coeficient */
43 opus_int32 LF_shp_Q14, /* I Low-frequanc y shaping coeficients */ 43 opus_int32 LF_shp_Q14, /* I Low-frequanc y shaping coeficients */
44 opus_int lag, /* I Lag for harm onic shaping */ 44 opus_int lag, /* I Lag for harm onic shaping */
45 opus_int length /* I Length of si gnals */ 45 opus_int length /* I Length of si gnals */
46 ); 46 );
47 47
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149 149
150 px += psEnc->sCmn.subfr_length; 150 px += psEnc->sCmn.subfr_length;
151 pxw_Q3 += psEnc->sCmn.subfr_length; 151 pxw_Q3 += psEnc->sCmn.subfr_length;
152 } 152 }
153 153
154 P->lagPrev = psEncCtrl->pitchL[ psEnc->sCmn.nb_subfr - 1 ]; 154 P->lagPrev = psEncCtrl->pitchL[ psEnc->sCmn.nb_subfr - 1 ];
155 RESTORE_STACK; 155 RESTORE_STACK;
156 } 156 }
157 157
158 /* Prefilter for finding Quantizer input signal */ 158 /* Prefilter for finding Quantizer input signal */
159 static inline void silk_prefilt_FIX( 159 static OPUS_INLINE void silk_prefilt_FIX(
160 silk_prefilter_state_FIX *P, /* I/O state */ 160 silk_prefilter_state_FIX *P, /* I/O state */
161 opus_int32 st_res_Q12[], /* I short term r esidual signal */ 161 opus_int32 st_res_Q12[], /* I short term r esidual signal */
162 opus_int32 xw_Q3[], /* O prefiltered signal */ 162 opus_int32 xw_Q3[], /* O prefiltered signal */
163 opus_int32 HarmShapeFIRPacked_Q12, /* I Harmonic sha ping coeficients */ 163 opus_int32 HarmShapeFIRPacked_Q12, /* I Harmonic sha ping coeficients */
164 opus_int Tilt_Q14, /* I Tilt shaping coeficient */ 164 opus_int Tilt_Q14, /* I Tilt shaping coeficient */
165 opus_int32 LF_shp_Q14, /* I Low-frequanc y shaping coeficients */ 165 opus_int32 LF_shp_Q14, /* I Low-frequanc y shaping coeficients */
166 opus_int lag, /* I Lag for harm onic shaping */ 166 opus_int lag, /* I Lag for harm onic shaping */
167 opus_int length /* I Length of si gnals */ 167 opus_int length /* I Length of si gnals */
168 ) 168 )
169 { 169 {
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200 LTP_shp_buf[ LTP_shp_buf_idx ] = (opus_int16)silk_SAT16( silk_RSHIFT_ROU ND( sLF_MA_shp_Q12, 12 ) ); 200 LTP_shp_buf[ LTP_shp_buf_idx ] = (opus_int16)silk_SAT16( silk_RSHIFT_ROU ND( sLF_MA_shp_Q12, 12 ) );
201 201
202 xw_Q3[i] = silk_RSHIFT_ROUND( silk_SUB32( sLF_MA_shp_Q12, n_LTP_Q12 ), 9 ); 202 xw_Q3[i] = silk_RSHIFT_ROUND( silk_SUB32( sLF_MA_shp_Q12, n_LTP_Q12 ), 9 );
203 } 203 }
204 204
205 /* Copy temp variable back to state */ 205 /* Copy temp variable back to state */
206 P->sLF_AR_shp_Q12 = sLF_AR_shp_Q12; 206 P->sLF_AR_shp_Q12 = sLF_AR_shp_Q12;
207 P->sLF_MA_shp_Q12 = sLF_MA_shp_Q12; 207 P->sLF_MA_shp_Q12 = sLF_MA_shp_Q12;
208 P->sLTP_shp_buf_idx = LTP_shp_buf_idx; 208 P->sLTP_shp_buf_idx = LTP_shp_buf_idx;
209 } 209 }
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