media/libopus/silk/pitch_est_defines.h@ac0c01689b40 (annotated)
media/libopus/silk/pitch_est_defines.h
Thu, 15 Jan 2015 15:59:08 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:59:08 +0100
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
- permissions
- -rw-r--r--
Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /*********************************************************************** |
| michael@0 | 2 | Copyright (c) 2006-2011, Skype Limited. All rights reserved. |
| michael@0 | 3 | Redistribution and use in source and binary forms, with or without |
| michael@0 | 4 | modification, are permitted provided that the following conditions |
| michael@0 | 5 | are met: |
| michael@0 | 6 | - Redistributions of source code must retain the above copyright notice, |
| michael@0 | 7 | this list of conditions and the following disclaimer. |
| michael@0 | 8 | - Redistributions in binary form must reproduce the above copyright |
| michael@0 | 9 | notice, this list of conditions and the following disclaimer in the |
| michael@0 | 10 | documentation and/or other materials provided with the distribution. |
| michael@0 | 11 | - Neither the name of Internet Society, IETF or IETF Trust, nor the |
| michael@0 | 12 | names of specific contributors, may be used to endorse or promote |
| michael@0 | 13 | products derived from this software without specific prior written |
| michael@0 | 14 | permission. |
| michael@0 | 15 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| michael@0 | 16 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| michael@0 | 17 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| michael@0 | 18 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| michael@0 | 19 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| michael@0 | 20 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| michael@0 | 21 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| michael@0 | 22 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| michael@0 | 23 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| michael@0 | 24 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| michael@0 | 25 | POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 26 | ***********************************************************************/ |
| michael@0 | 27 | |
| michael@0 | 28 | #ifndef SILK_PE_DEFINES_H |
| michael@0 | 29 | #define SILK_PE_DEFINES_H |
| michael@0 | 30 | |
| michael@0 | 31 | #include "SigProc_FIX.h" |
| michael@0 | 32 | |
| michael@0 | 33 | /********************************************************/ |
| michael@0 | 34 | /* Definitions for pitch estimator */ |
| michael@0 | 35 | /********************************************************/ |
| michael@0 | 36 | |
| michael@0 | 37 | #define PE_MAX_FS_KHZ 16 /* Maximum sampling frequency used */ |
| michael@0 | 38 | |
| michael@0 | 39 | #define PE_MAX_NB_SUBFR 4 |
| michael@0 | 40 | #define PE_SUBFR_LENGTH_MS 5 /* 5 ms */ |
| michael@0 | 41 | |
| michael@0 | 42 | #define PE_LTP_MEM_LENGTH_MS ( 4 * PE_SUBFR_LENGTH_MS ) |
| michael@0 | 43 | |
| michael@0 | 44 | #define PE_MAX_FRAME_LENGTH_MS ( PE_LTP_MEM_LENGTH_MS + PE_MAX_NB_SUBFR * PE_SUBFR_LENGTH_MS ) |
| michael@0 | 45 | #define PE_MAX_FRAME_LENGTH ( PE_MAX_FRAME_LENGTH_MS * PE_MAX_FS_KHZ ) |
| michael@0 | 46 | #define PE_MAX_FRAME_LENGTH_ST_1 ( PE_MAX_FRAME_LENGTH >> 2 ) |
| michael@0 | 47 | #define PE_MAX_FRAME_LENGTH_ST_2 ( PE_MAX_FRAME_LENGTH >> 1 ) |
| michael@0 | 48 | |
| michael@0 | 49 | #define PE_MAX_LAG_MS 18 /* 18 ms -> 56 Hz */ |
| michael@0 | 50 | #define PE_MIN_LAG_MS 2 /* 2 ms -> 500 Hz */ |
| michael@0 | 51 | #define PE_MAX_LAG ( PE_MAX_LAG_MS * PE_MAX_FS_KHZ ) |
| michael@0 | 52 | #define PE_MIN_LAG ( PE_MIN_LAG_MS * PE_MAX_FS_KHZ ) |
| michael@0 | 53 | |
| michael@0 | 54 | #define PE_D_SRCH_LENGTH 24 |
| michael@0 | 55 | |
| michael@0 | 56 | #define PE_NB_STAGE3_LAGS 5 |
| michael@0 | 57 | |
| michael@0 | 58 | #define PE_NB_CBKS_STAGE2 3 |
| michael@0 | 59 | #define PE_NB_CBKS_STAGE2_EXT 11 |
| michael@0 | 60 | |
| michael@0 | 61 | #define PE_NB_CBKS_STAGE3_MAX 34 |
| michael@0 | 62 | #define PE_NB_CBKS_STAGE3_MID 24 |
| michael@0 | 63 | #define PE_NB_CBKS_STAGE3_MIN 16 |
| michael@0 | 64 | |
| michael@0 | 65 | #define PE_NB_CBKS_STAGE3_10MS 12 |
| michael@0 | 66 | #define PE_NB_CBKS_STAGE2_10MS 3 |
| michael@0 | 67 | |
| michael@0 | 68 | #define PE_SHORTLAG_BIAS 0.2f /* for logarithmic weighting */ |
| michael@0 | 69 | #define PE_PREVLAG_BIAS 0.2f /* for logarithmic weighting */ |
| michael@0 | 70 | #define PE_FLATCONTOUR_BIAS 0.05f |
| michael@0 | 71 | |
| michael@0 | 72 | #define SILK_PE_MIN_COMPLEX 0 |
| michael@0 | 73 | #define SILK_PE_MID_COMPLEX 1 |
| michael@0 | 74 | #define SILK_PE_MAX_COMPLEX 2 |
| michael@0 | 75 | |
| michael@0 | 76 | /* Tables for 20 ms frames */ |
| michael@0 | 77 | extern const opus_int8 silk_CB_lags_stage2[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE2_EXT ]; |
| michael@0 | 78 | extern const opus_int8 silk_CB_lags_stage3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ]; |
| michael@0 | 79 | extern const opus_int8 silk_Lag_range_stage3[ SILK_PE_MAX_COMPLEX + 1 ] [ PE_MAX_NB_SUBFR ][ 2 ]; |
| michael@0 | 80 | extern const opus_int8 silk_nb_cbk_searchs_stage3[ SILK_PE_MAX_COMPLEX + 1 ]; |
| michael@0 | 81 | |
| michael@0 | 82 | /* Tables for 10 ms frames */ |
| michael@0 | 83 | extern const opus_int8 silk_CB_lags_stage2_10_ms[ PE_MAX_NB_SUBFR >> 1][ 3 ]; |
| michael@0 | 84 | extern const opus_int8 silk_CB_lags_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 12 ]; |
| michael@0 | 85 | extern const opus_int8 silk_Lag_range_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 2 ]; |
| michael@0 | 86 | |
| michael@0 | 87 | #endif |
| michael@0 | 88 |
