Alexandre Lision | 744f742 | 2013-09-25 11:39:37 -0400 | [diff] [blame] | 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 | |