michael@0: /***********************************************************************
michael@0: Copyright (c) 2006-2011, Skype Limited. All rights reserved.
michael@0: Redistribution and use in source and binary forms, with or without
michael@0: modification, are permitted provided that the following conditions
michael@0: are met:
michael@0: - Redistributions of source code must retain the above copyright notice,
michael@0: this list of conditions and the following disclaimer.
michael@0: - Redistributions in binary form must reproduce the above copyright
michael@0: notice, this list of conditions and the following disclaimer in the
michael@0: documentation and/or other materials provided with the distribution.
michael@0: - Neither the name of Internet Society, IETF or IETF Trust, nor the
michael@0: names of specific contributors, may be used to endorse or promote
michael@0: products derived from this software without specific prior written
michael@0: permission.
michael@0: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
michael@0: AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
michael@0: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
michael@0: ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
michael@0: LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
michael@0: CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
michael@0: SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
michael@0: INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
michael@0: CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
michael@0: ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
michael@0: POSSIBILITY OF SUCH DAMAGE.
michael@0: ***********************************************************************/
michael@0: 
michael@0: #ifndef SILK_PLC_H
michael@0: #define SILK_PLC_H
michael@0: 
michael@0: #include "main.h"
michael@0: 
michael@0: #define BWE_COEF                        0.99
michael@0: #define V_PITCH_GAIN_START_MIN_Q14      11469               /* 0.7 in Q14               */
michael@0: #define V_PITCH_GAIN_START_MAX_Q14      15565               /* 0.95 in Q14              */
michael@0: #define MAX_PITCH_LAG_MS                18
michael@0: #define RAND_BUF_SIZE                   128
michael@0: #define RAND_BUF_MASK                   ( RAND_BUF_SIZE - 1 )
michael@0: #define LOG2_INV_LPC_GAIN_HIGH_THRES    3                   /* 2^3 = 8 dB LPC gain      */
michael@0: #define LOG2_INV_LPC_GAIN_LOW_THRES     8                   /* 2^8 = 24 dB LPC gain     */
michael@0: #define PITCH_DRIFT_FAC_Q16             655                 /* 0.01 in Q16              */
michael@0: 
michael@0: void silk_PLC_Reset(
michael@0:     silk_decoder_state                  *psDec              /* I/O Decoder state        */
michael@0: );
michael@0: 
michael@0: void silk_PLC(
michael@0:     silk_decoder_state                  *psDec,             /* I/O Decoder state        */
michael@0:     silk_decoder_control                *psDecCtrl,         /* I/O Decoder control      */
michael@0:     opus_int16                          frame[],            /* I/O  signal              */
michael@0:     opus_int                            lost                /* I Loss flag              */
michael@0: );
michael@0: 
michael@0: void silk_PLC_glue_frames(
michael@0:     silk_decoder_state                  *psDec,             /* I/O decoder state        */
michael@0:     opus_int16                          frame[],            /* I/O signal               */
michael@0:     opus_int                            length              /* I length of signal       */
michael@0: );
michael@0: 
michael@0: #endif
michael@0: