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comparison: media/libopus/silk/pitch_est_defines.h
media/libopus/silk/pitch_est_defines.h
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| 1 /*********************************************************************** | |
| 2 Copyright (c) 2006-2011, Skype Limited. All rights reserved. | |
| 3 Redistribution and use in source and binary forms, with or without | |
| 4 modification, are permitted provided that the following conditions | |
| 5 are met: | |
| 6 - Redistributions of source code must retain the above copyright notice, | |
| 7 this list of conditions and the following disclaimer. | |
| 8 - Redistributions in binary form must reproduce the above copyright | |
| 9 notice, this list of conditions and the following disclaimer in the | |
| 10 documentation and/or other materials provided with the distribution. | |
| 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 | |
| 13 products derived from this software without specific prior written | |
| 14 permission. | |
| 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 | |
| 17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
| 19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 20 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 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 | |
| 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 | |
| 25 POSSIBILITY OF SUCH DAMAGE. | |
| 26 ***********************************************************************/ | |
| 27 | |
| 28 #ifndef SILK_PE_DEFINES_H | |
| 29 #define SILK_PE_DEFINES_H | |
| 30 | |
| 31 #include "SigProc_FIX.h" | |
| 32 | |
| 33 /********************************************************/ | |
| 34 /* Definitions for pitch estimator */ | |
| 35 /********************************************************/ | |
| 36 | |
| 37 #define PE_MAX_FS_KHZ 16 /* Maximum sampling frequency used */ | |
| 38 | |
| 39 #define PE_MAX_NB_SUBFR 4 | |
| 40 #define PE_SUBFR_LENGTH_MS 5 /* 5 ms */ | |
| 41 | |
| 42 #define PE_LTP_MEM_LENGTH_MS ( 4 * PE_SUBFR_LENGTH_MS ) | |
| 43 | |
| 44 #define PE_MAX_FRAME_LENGTH_MS ( PE_LTP_MEM_LENGTH_MS + PE_MAX_NB_SUBFR * PE_SUBFR_LENGTH_MS ) | |
| 45 #define PE_MAX_FRAME_LENGTH ( PE_MAX_FRAME_LENGTH_MS * PE_MAX_FS_KHZ ) | |
| 46 #define PE_MAX_FRAME_LENGTH_ST_1 ( PE_MAX_FRAME_LENGTH >> 2 ) | |
| 47 #define PE_MAX_FRAME_LENGTH_ST_2 ( PE_MAX_FRAME_LENGTH >> 1 ) | |
| 48 | |
| 49 #define PE_MAX_LAG_MS 18 /* 18 ms -> 56 Hz */ | |
| 50 #define PE_MIN_LAG_MS 2 /* 2 ms -> 500 Hz */ | |
| 51 #define PE_MAX_LAG ( PE_MAX_LAG_MS * PE_MAX_FS_KHZ ) | |
| 52 #define PE_MIN_LAG ( PE_MIN_LAG_MS * PE_MAX_FS_KHZ ) | |
| 53 | |
| 54 #define PE_D_SRCH_LENGTH 24 | |
| 55 | |
| 56 #define PE_NB_STAGE3_LAGS 5 | |
| 57 | |
| 58 #define PE_NB_CBKS_STAGE2 3 | |
| 59 #define PE_NB_CBKS_STAGE2_EXT 11 | |
| 60 | |
| 61 #define PE_NB_CBKS_STAGE3_MAX 34 | |
| 62 #define PE_NB_CBKS_STAGE3_MID 24 | |
| 63 #define PE_NB_CBKS_STAGE3_MIN 16 | |
| 64 | |
| 65 #define PE_NB_CBKS_STAGE3_10MS 12 | |
| 66 #define PE_NB_CBKS_STAGE2_10MS 3 | |
| 67 | |
| 68 #define PE_SHORTLAG_BIAS 0.2f /* for logarithmic weighting */ | |
| 69 #define PE_PREVLAG_BIAS 0.2f /* for logarithmic weighting */ | |
| 70 #define PE_FLATCONTOUR_BIAS 0.05f | |
| 71 | |
| 72 #define SILK_PE_MIN_COMPLEX 0 | |
| 73 #define SILK_PE_MID_COMPLEX 1 | |
| 74 #define SILK_PE_MAX_COMPLEX 2 | |
| 75 | |
| 76 /* Tables for 20 ms frames */ | |
| 77 extern const opus_int8 silk_CB_lags_stage2[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE2_EXT ]; | |
| 78 extern const opus_int8 silk_CB_lags_stage3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ]; | |
| 79 extern const opus_int8 silk_Lag_range_stage3[ SILK_PE_MAX_COMPLEX + 1 ] [ PE_MAX_NB_SUBFR ][ 2 ]; | |
| 80 extern const opus_int8 silk_nb_cbk_searchs_stage3[ SILK_PE_MAX_COMPLEX + 1 ]; | |
| 81 | |
| 82 /* Tables for 10 ms frames */ | |
| 83 extern const opus_int8 silk_CB_lags_stage2_10_ms[ PE_MAX_NB_SUBFR >> 1][ 3 ]; | |
| 84 extern const opus_int8 silk_CB_lags_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 12 ]; | |
| 85 extern const opus_int8 silk_Lag_range_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 2 ]; | |
| 86 | |
| 87 #endif | |
| 88 |
