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- /***********************************************************************
- Copyright (c) 2006-2011, Skype Limited. All rights reserved.
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
- - Redistributions of source code must retain the above copyright notice,
- this list of conditions and the following disclaimer.
- - Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
- - Neither the name of Internet Society, IETF or IETF Trust, nor the
- names of specific contributors, may be used to endorse or promote
- products derived from this software without specific prior written
- permission.
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- POSSIBILITY OF SUCH DAMAGE.
- ***********************************************************************/
- #ifndef SILK_RESAMPLER_STRUCTS_H
- #define SILK_RESAMPLER_STRUCTS_H
- #ifdef __cplusplus
- extern "C" {
- #endif
- #define SILK_RESAMPLER_MAX_FIR_ORDER 36
- #define SILK_RESAMPLER_MAX_IIR_ORDER 6
- typedef struct _silk_resampler_state_struct{
- opus_int32 sIIR[ SILK_RESAMPLER_MAX_IIR_ORDER ]; /* this must be the first element of this struct */
- union{
- opus_int32 i32[ SILK_RESAMPLER_MAX_FIR_ORDER ];
- opus_int16 i16[ SILK_RESAMPLER_MAX_FIR_ORDER ];
- } sFIR;
- opus_int16 delayBuf[ 48 ];
- opus_int resampler_function;
- opus_int batchSize;
- opus_int32 invRatio_Q16;
- opus_int FIR_Order;
- opus_int FIR_Fracs;
- opus_int Fs_in_kHz;
- opus_int Fs_out_kHz;
- opus_int inputDelay;
- const opus_int16 *Coefs;
- } silk_resampler_state_struct;
- #ifdef __cplusplus
- }
- #endif
- #endif /* SILK_RESAMPLER_STRUCTS_H */
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