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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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24 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | 24 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
25 POSSIBILITY OF SUCH DAMAGE. | 25 POSSIBILITY OF SUCH DAMAGE. |
26 ***********************************************************************/ | 26 ***********************************************************************/ |
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 | 33 |
34 #define QC 10 | |
35 #define QS 14 | |
36 | |
37 #if defined(MIPSr1_ASM) | 34 #if defined(MIPSr1_ASM) |
38 #include "mips/warped_autocorrelation_FIX_mipsr1.h" | 35 #include "mips/warped_autocorrelation_FIX_mipsr1.h" |
39 #endif | 36 #endif |
40 | 37 |
41 | 38 |
42 #ifndef OVERRIDE_silk_warped_autocorrelation_FIX | |
43 /* Autocorrelations for a warped frequency axis */ | 39 /* Autocorrelations for a warped frequency axis */ |
44 void silk_warped_autocorrelation_FIX( | 40 void silk_warped_autocorrelation_FIX_c( |
45 opus_int32 *corr, /* O
Result [order + 1]
*/ | 41 opus_int32 *corr, /* O
Result [order + 1]
*/ |
46 opus_int *scale, /* O
Scaling of the correlation vector
*/ | 42 opus_int *scale, /* O
Scaling of the correlation vector
*/ |
47 const opus_int16 *input, /* I
Input data to correlate
*/ | 43 const opus_int16 *input, /* I
Input data to correlate
*/ |
48 const opus_int warping_Q16, /* I
Warping coefficient
*/ | 44 const opus_int warping_Q16, /* I
Warping coefficient
*/ |
49 const opus_int length, /* I
Length of input
*/ | 45 const opus_int length, /* I
Length of input
*/ |
50 const opus_int order /* I
Correlation order (even)
*/ | 46 const opus_int order /* I
Correlation order (even)
*/ |
51 ) | 47 ) |
52 { | 48 { |
53 opus_int n, i, lsh; | 49 opus_int n, i, lsh; |
54 opus_int32 tmp1_QS, tmp2_QS; | 50 opus_int32 tmp1_QS, tmp2_QS; |
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85 for( i = 0; i < order + 1; i++ ) { | 81 for( i = 0; i < order + 1; i++ ) { |
86 corr[ i ] = (opus_int32)silk_CHECK_FIT32( silk_LSHIFT64( corr_QC[ i
], lsh ) ); | 82 corr[ i ] = (opus_int32)silk_CHECK_FIT32( silk_LSHIFT64( corr_QC[ i
], lsh ) ); |
87 } | 83 } |
88 } else { | 84 } else { |
89 for( i = 0; i < order + 1; i++ ) { | 85 for( i = 0; i < order + 1; i++ ) { |
90 corr[ i ] = (opus_int32)silk_CHECK_FIT32( silk_RSHIFT64( corr_QC[ i
], -lsh ) ); | 86 corr[ i ] = (opus_int32)silk_CHECK_FIT32( silk_RSHIFT64( corr_QC[ i
], -lsh ) ); |
91 } | 87 } |
92 } | 88 } |
93 silk_assert( corr_QC[ 0 ] >= 0 ); /* If breaking, decrease QC*/ | 89 silk_assert( corr_QC[ 0 ] >= 0 ); /* If breaking, decrease QC*/ |
94 } | 90 } |
95 #endif /* OVERRIDE_silk_warped_autocorrelation_FIX */ | |
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