4ede311055
Audio notes (opus codec) A lot of different improvements and bug fixes Thanks to: https://github.com/DrKLO/Telegram/issues/293 https://github.com/DrKLO/Telegram/issues/256 FOSS configuration not ready yet I will move main dev branch to github in next couple commits
89 lines
4.0 KiB
C
89 lines
4.0 KiB
C
/***********************************************************************
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Copyright (c) 2006-2011, Skype Limited. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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- Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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- Neither the name of Internet Society, IETF or IETF Trust, nor the
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names of specific contributors, may be used to endorse or promote
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products derived from this software without specific prior written
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permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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***********************************************************************/
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#ifndef SILK_PE_DEFINES_H
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#define SILK_PE_DEFINES_H
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#include "SigProc_FIX.h"
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/********************************************************/
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/* Definitions for pitch estimator */
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/********************************************************/
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#define PE_MAX_FS_KHZ 16 /* Maximum sampling frequency used */
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#define PE_MAX_NB_SUBFR 4
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#define PE_SUBFR_LENGTH_MS 5 /* 5 ms */
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#define PE_LTP_MEM_LENGTH_MS ( 4 * PE_SUBFR_LENGTH_MS )
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#define PE_MAX_FRAME_LENGTH_MS ( PE_LTP_MEM_LENGTH_MS + PE_MAX_NB_SUBFR * PE_SUBFR_LENGTH_MS )
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#define PE_MAX_FRAME_LENGTH ( PE_MAX_FRAME_LENGTH_MS * PE_MAX_FS_KHZ )
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#define PE_MAX_FRAME_LENGTH_ST_1 ( PE_MAX_FRAME_LENGTH >> 2 )
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#define PE_MAX_FRAME_LENGTH_ST_2 ( PE_MAX_FRAME_LENGTH >> 1 )
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#define PE_MAX_LAG_MS 18 /* 18 ms -> 56 Hz */
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#define PE_MIN_LAG_MS 2 /* 2 ms -> 500 Hz */
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#define PE_MAX_LAG ( PE_MAX_LAG_MS * PE_MAX_FS_KHZ )
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#define PE_MIN_LAG ( PE_MIN_LAG_MS * PE_MAX_FS_KHZ )
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#define PE_D_SRCH_LENGTH 24
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#define PE_NB_STAGE3_LAGS 5
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#define PE_NB_CBKS_STAGE2 3
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#define PE_NB_CBKS_STAGE2_EXT 11
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#define PE_NB_CBKS_STAGE3_MAX 34
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#define PE_NB_CBKS_STAGE3_MID 24
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#define PE_NB_CBKS_STAGE3_MIN 16
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#define PE_NB_CBKS_STAGE3_10MS 12
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#define PE_NB_CBKS_STAGE2_10MS 3
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#define PE_SHORTLAG_BIAS 0.2f /* for logarithmic weighting */
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#define PE_PREVLAG_BIAS 0.2f /* for logarithmic weighting */
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#define PE_FLATCONTOUR_BIAS 0.05f
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#define SILK_PE_MIN_COMPLEX 0
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#define SILK_PE_MID_COMPLEX 1
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#define SILK_PE_MAX_COMPLEX 2
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/* Tables for 20 ms frames */
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extern const opus_int8 silk_CB_lags_stage2[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE2_EXT ];
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extern const opus_int8 silk_CB_lags_stage3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ];
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extern const opus_int8 silk_Lag_range_stage3[ SILK_PE_MAX_COMPLEX + 1 ] [ PE_MAX_NB_SUBFR ][ 2 ];
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extern const opus_int8 silk_nb_cbk_searchs_stage3[ SILK_PE_MAX_COMPLEX + 1 ];
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/* Tables for 10 ms frames */
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extern const opus_int8 silk_CB_lags_stage2_10_ms[ PE_MAX_NB_SUBFR >> 1][ 3 ];
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extern const opus_int8 silk_CB_lags_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 12 ];
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extern const opus_int8 silk_Lag_range_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 2 ];
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#endif
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