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Side by Side Diff: silk/resampler_private_IIR_FIR.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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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 "SigProc_FIX.h" 32 #include "SigProc_FIX.h"
33 #include "resampler_private.h" 33 #include "resampler_private.h"
34 #include "stack_alloc.h" 34 #include "stack_alloc.h"
35 35
36 static inline opus_int16 *silk_resampler_private_IIR_FIR_INTERPOL( 36 static OPUS_INLINE opus_int16 *silk_resampler_private_IIR_FIR_INTERPOL(
37 opus_int16 *out, 37 opus_int16 *out,
38 opus_int16 *buf, 38 opus_int16 *buf,
39 opus_int32 max_index_Q16, 39 opus_int32 max_index_Q16,
40 opus_int32 index_increment_Q16 40 opus_int32 index_increment_Q16
41 ) 41 )
42 { 42 {
43 opus_int32 index_Q16, res_Q15; 43 opus_int32 index_Q16, res_Q15;
44 opus_int16 *buf_ptr; 44 opus_int16 *buf_ptr;
45 opus_int32 table_index; 45 opus_int32 table_index;
46 46
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98 silk_memcpy( buf, &buf[ nSamplesIn << 1 ], RESAMPLER_ORDER_FIR_12 * sizeof( opus_int16 ) ); 98 silk_memcpy( buf, &buf[ nSamplesIn << 1 ], RESAMPLER_ORDER_FIR_12 * sizeof( opus_int16 ) );
99 } else { 99 } else {
100 break; 100 break;
101 } 101 }
102 } 102 }
103 103
104 /* Copy last part of filtered signal to the state for the next call */ 104 /* Copy last part of filtered signal to the state for the next call */
105 silk_memcpy( S->sFIR.i16, &buf[ nSamplesIn << 1 ], RESAMPLER_ORDER_FIR_12 * sizeof( opus_int16 ) ); 105 silk_memcpy( S->sFIR.i16, &buf[ nSamplesIn << 1 ], RESAMPLER_ORDER_FIR_12 * sizeof( opus_int16 ) );
106 RESTORE_STACK; 106 RESTORE_STACK;
107 } 107 }
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