1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/libopus/silk/PLC.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,61 @@
1.4 +/***********************************************************************
1.5 +Copyright (c) 2006-2011, Skype Limited. All rights reserved.
1.6 +Redistribution and use in source and binary forms, with or without
1.7 +modification, are permitted provided that the following conditions
1.8 +are met:
1.9 +- Redistributions of source code must retain the above copyright notice,
1.10 +this list of conditions and the following disclaimer.
1.11 +- Redistributions in binary form must reproduce the above copyright
1.12 +notice, this list of conditions and the following disclaimer in the
1.13 +documentation and/or other materials provided with the distribution.
1.14 +- Neither the name of Internet Society, IETF or IETF Trust, nor the
1.15 +names of specific contributors, may be used to endorse or promote
1.16 +products derived from this software without specific prior written
1.17 +permission.
1.18 +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
1.19 +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.20 +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.21 +ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
1.22 +LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.23 +CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.24 +SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.25 +INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.26 +CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.27 +ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.28 +POSSIBILITY OF SUCH DAMAGE.
1.29 +***********************************************************************/
1.30 +
1.31 +#ifndef SILK_PLC_H
1.32 +#define SILK_PLC_H
1.33 +
1.34 +#include "main.h"
1.35 +
1.36 +#define BWE_COEF 0.99
1.37 +#define V_PITCH_GAIN_START_MIN_Q14 11469 /* 0.7 in Q14 */
1.38 +#define V_PITCH_GAIN_START_MAX_Q14 15565 /* 0.95 in Q14 */
1.39 +#define MAX_PITCH_LAG_MS 18
1.40 +#define RAND_BUF_SIZE 128
1.41 +#define RAND_BUF_MASK ( RAND_BUF_SIZE - 1 )
1.42 +#define LOG2_INV_LPC_GAIN_HIGH_THRES 3 /* 2^3 = 8 dB LPC gain */
1.43 +#define LOG2_INV_LPC_GAIN_LOW_THRES 8 /* 2^8 = 24 dB LPC gain */
1.44 +#define PITCH_DRIFT_FAC_Q16 655 /* 0.01 in Q16 */
1.45 +
1.46 +void silk_PLC_Reset(
1.47 + silk_decoder_state *psDec /* I/O Decoder state */
1.48 +);
1.49 +
1.50 +void silk_PLC(
1.51 + silk_decoder_state *psDec, /* I/O Decoder state */
1.52 + silk_decoder_control *psDecCtrl, /* I/O Decoder control */
1.53 + opus_int16 frame[], /* I/O signal */
1.54 + opus_int lost /* I Loss flag */
1.55 +);
1.56 +
1.57 +void silk_PLC_glue_frames(
1.58 + silk_decoder_state *psDec, /* I/O decoder state */
1.59 + opus_int16 frame[], /* I/O signal */
1.60 + opus_int length /* I length of signal */
1.61 +);
1.62 +
1.63 +#endif
1.64 +
