1/*********************************************************************** 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. 11- Neither the name of Internet Society, IETF or IETF Trust, nor the 12names of specific contributors, may be used to endorse or promote 13products derived from this software without specific prior written 14permission. 15THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 16AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 19LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25POSSIBILITY OF SUCH DAMAGE. 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 */ 40 union{ 41 opus_int32 i32[ SILK_RESAMPLER_MAX_FIR_ORDER ]; 42 opus_int16 i16[ SILK_RESAMPLER_MAX_FIR_ORDER ]; 43 } sFIR; 44 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 61