blob: 9e9457d11cacb915d0549de86e33c2aa41c32924 [file] [log] [blame]
sergeyu@chromium.org885f2ff2012-10-17 22:31:52 +00001/***********************************************************************
2Copyright (c) 2006-2011, Skype Limited. All rights reserved.
3Redistribution and use in source and binary forms, with or without
4modification, are permitted provided that the following conditions
5are met:
6- Redistributions of source code must retain the above copyright notice,
7this list of conditions and the following disclaimer.
8- Redistributions in binary form must reproduce the above copyright
9notice, this list of conditions and the following disclaimer in the
10documentation and/or other materials provided with the distribution.
tlegrand@chromium.orge3ea0492013-10-23 09:13:50 +000011- Neither the name of Internet Society, IETF or IETF Trust, nor the
sergeyu@chromium.org885f2ff2012-10-17 22:31:52 +000012names of specific contributors, may be used to endorse or promote
13products derived from this software without specific prior written
14permission.
tlegrand@chromium.orge3ea0492013-10-23 09:13:50 +000015THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
sergeyu@chromium.org885f2ff2012-10-17 22:31:52 +000016AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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26***********************************************************************/
27
28#ifndef SILK_RESAMPLER_STRUCTS_H
29#define SILK_RESAMPLER_STRUCTS_H
30
31#ifdef __cplusplus
32extern "C" {
33#endif
34
35#define SILK_RESAMPLER_MAX_FIR_ORDER 36
36#define SILK_RESAMPLER_MAX_IIR_ORDER 6
37
38typedef struct _silk_resampler_state_struct{
39 opus_int32 sIIR[ SILK_RESAMPLER_MAX_IIR_ORDER ]; /* this must be the first element of this struct */
tlegrand@chromium.orge3ea0492013-10-23 09:13:50 +000040 union{
41 opus_int32 i32[ SILK_RESAMPLER_MAX_FIR_ORDER ];
42 opus_int16 i16[ SILK_RESAMPLER_MAX_FIR_ORDER ];
43 } sFIR;
sergeyu@chromium.org885f2ff2012-10-17 22:31:52 +000044 opus_int16 delayBuf[ 48 ];
45 opus_int resampler_function;
46 opus_int batchSize;
47 opus_int32 invRatio_Q16;
48 opus_int FIR_Order;
49 opus_int FIR_Fracs;
50 opus_int Fs_in_kHz;
51 opus_int Fs_out_kHz;
52 opus_int inputDelay;
53 const opus_int16 *Coefs;
54} silk_resampler_state_struct;
55
56#ifdef __cplusplus
57}
58#endif
59#endif /* SILK_RESAMPLER_STRUCTS_H */
60