1*a58d3d2aSXin Li /*********************************************************************** 2*a58d3d2aSXin Li Copyright (c) 2006-2011, Skype Limited. All rights reserved. 3*a58d3d2aSXin Li Redistribution and use in source and binary forms, with or without 4*a58d3d2aSXin Li modification, are permitted provided that the following conditions 5*a58d3d2aSXin Li are met: 6*a58d3d2aSXin Li - Redistributions of source code must retain the above copyright notice, 7*a58d3d2aSXin Li this list of conditions and the following disclaimer. 8*a58d3d2aSXin Li - Redistributions in binary form must reproduce the above copyright 9*a58d3d2aSXin Li notice, this list of conditions and the following disclaimer in the 10*a58d3d2aSXin Li documentation and/or other materials provided with the distribution. 11*a58d3d2aSXin Li - Neither the name of Internet Society, IETF or IETF Trust, nor the 12*a58d3d2aSXin Li names of specific contributors, may be used to endorse or promote 13*a58d3d2aSXin Li products derived from this software without specific prior written 14*a58d3d2aSXin Li permission. 15*a58d3d2aSXin Li THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 16*a58d3d2aSXin Li AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17*a58d3d2aSXin Li IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18*a58d3d2aSXin Li ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 19*a58d3d2aSXin Li LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20*a58d3d2aSXin Li CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21*a58d3d2aSXin Li SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22*a58d3d2aSXin Li INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23*a58d3d2aSXin Li CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24*a58d3d2aSXin Li ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25*a58d3d2aSXin Li POSSIBILITY OF SUCH DAMAGE. 26*a58d3d2aSXin Li ***********************************************************************/ 27*a58d3d2aSXin Li 28*a58d3d2aSXin Li #ifndef SILK_PLC_H 29*a58d3d2aSXin Li #define SILK_PLC_H 30*a58d3d2aSXin Li 31*a58d3d2aSXin Li #include "main.h" 32*a58d3d2aSXin Li 33*a58d3d2aSXin Li #define BWE_COEF 0.99 34*a58d3d2aSXin Li #define V_PITCH_GAIN_START_MIN_Q14 11469 /* 0.7 in Q14 */ 35*a58d3d2aSXin Li #define V_PITCH_GAIN_START_MAX_Q14 15565 /* 0.95 in Q14 */ 36*a58d3d2aSXin Li #define MAX_PITCH_LAG_MS 18 37*a58d3d2aSXin Li #define RAND_BUF_SIZE 128 38*a58d3d2aSXin Li #define RAND_BUF_MASK ( RAND_BUF_SIZE - 1 ) 39*a58d3d2aSXin Li #define LOG2_INV_LPC_GAIN_HIGH_THRES 3 /* 2^3 = 8 dB LPC gain */ 40*a58d3d2aSXin Li #define LOG2_INV_LPC_GAIN_LOW_THRES 8 /* 2^8 = 24 dB LPC gain */ 41*a58d3d2aSXin Li #define PITCH_DRIFT_FAC_Q16 655 /* 0.01 in Q16 */ 42*a58d3d2aSXin Li 43*a58d3d2aSXin Li void silk_PLC_Reset( 44*a58d3d2aSXin Li silk_decoder_state *psDec /* I/O Decoder state */ 45*a58d3d2aSXin Li ); 46*a58d3d2aSXin Li 47*a58d3d2aSXin Li void silk_PLC( 48*a58d3d2aSXin Li silk_decoder_state *psDec, /* I/O Decoder state */ 49*a58d3d2aSXin Li silk_decoder_control *psDecCtrl, /* I/O Decoder control */ 50*a58d3d2aSXin Li opus_int16 frame[], /* I/O signal */ 51*a58d3d2aSXin Li opus_int lost, /* I Loss flag */ 52*a58d3d2aSXin Li #ifdef ENABLE_DEEP_PLC 53*a58d3d2aSXin Li LPCNetPLCState *lpcnet, 54*a58d3d2aSXin Li #endif 55*a58d3d2aSXin Li int arch /* I Run-time architecture */ 56*a58d3d2aSXin Li ); 57*a58d3d2aSXin Li 58*a58d3d2aSXin Li void silk_PLC_glue_frames( 59*a58d3d2aSXin Li silk_decoder_state *psDec, /* I/O decoder state */ 60*a58d3d2aSXin Li opus_int16 frame[], /* I/O signal */ 61*a58d3d2aSXin Li opus_int length /* I length of signal */ 62*a58d3d2aSXin Li ); 63*a58d3d2aSXin Li 64*a58d3d2aSXin Li #endif 65*a58d3d2aSXin Li 66