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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. |
11 - Neither the name of Internet Society, IETF or IETF Trust, nor the | 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 | 12 names of specific contributors, may be used to endorse or promote |
13 products derived from this software without specific prior written | 13 products derived from this software without specific prior written |
14 permission. | 14 permission. |
15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” | 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 | 16 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | 17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | 18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | 19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
20 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | 20 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
21 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | 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 | 22 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
23 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | 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 | 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 #ifndef SILK_RESAMPLER_STRUCTS_H | 28 #ifndef SILK_RESAMPLER_STRUCTS_H |
29 #define SILK_RESAMPLER_STRUCTS_H | 29 #define SILK_RESAMPLER_STRUCTS_H |
30 | 30 |
31 #ifdef __cplusplus | 31 #ifdef __cplusplus |
32 extern "C" { | 32 extern "C" { |
33 #endif | 33 #endif |
34 | 34 |
35 #define SILK_RESAMPLER_MAX_FIR_ORDER 36 | 35 #define SILK_RESAMPLER_MAX_FIR_ORDER 36 |
36 #define SILK_RESAMPLER_MAX_IIR_ORDER 6 | 36 #define SILK_RESAMPLER_MAX_IIR_ORDER 6 |
37 | 37 |
38 typedef struct _silk_resampler_state_struct{ | 38 typedef struct _silk_resampler_state_struct{ |
39 opus_int32 sIIR[ SILK_RESAMPLER_MAX_IIR_ORDER ]; /* this must be the f
irst element of this struct */ | 39 opus_int32 sIIR[ SILK_RESAMPLER_MAX_IIR_ORDER ]; /* this must be the f
irst element of this struct */ |
40 opus_int32 sFIR[ SILK_RESAMPLER_MAX_FIR_ORDER ]; | 40 union{ |
| 41 opus_int32 i32[ SILK_RESAMPLER_MAX_FIR_ORDER ]; |
| 42 opus_int16 i16[ SILK_RESAMPLER_MAX_FIR_ORDER ]; |
| 43 } sFIR; |
41 opus_int16 delayBuf[ 48 ]; | 44 opus_int16 delayBuf[ 48 ]; |
42 opus_int resampler_function; | 45 opus_int resampler_function; |
43 opus_int batchSize; | 46 opus_int batchSize; |
44 opus_int32 invRatio_Q16; | 47 opus_int32 invRatio_Q16; |
45 opus_int FIR_Order; | 48 opus_int FIR_Order; |
46 opus_int FIR_Fracs; | 49 opus_int FIR_Fracs; |
47 opus_int Fs_in_kHz; | 50 opus_int Fs_in_kHz; |
48 opus_int Fs_out_kHz; | 51 opus_int Fs_out_kHz; |
49 opus_int inputDelay; | 52 opus_int inputDelay; |
50 const opus_int16 *Coefs; | 53 const opus_int16 *Coefs; |
51 } silk_resampler_state_struct; | 54 } silk_resampler_state_struct; |
52 | 55 |
53 #ifdef __cplusplus | 56 #ifdef __cplusplus |
54 } | 57 } |
55 #endif | 58 #endif |
56 #endif /* SILK_RESAMPLER_STRUCTS_H */ | 59 #endif /* SILK_RESAMPLER_STRUCTS_H */ |
57 | 60 |
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