2015-10-02 19:20:50 +02:00
|
|
|
/***********************************************************************
|
|
|
|
|
Copyright (c) 2006-2011, Skype Limited. All rights reserved.
|
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
|
|
|
modification, are permitted provided that the following conditions
|
|
|
|
|
are met:
|
|
|
|
|
- Redistributions of source code must retain the above copyright notice,
|
|
|
|
|
this list of conditions and the following disclaimer.
|
|
|
|
|
- Redistributions in binary form must reproduce the above copyright
|
|
|
|
|
notice, this list of conditions and the following disclaimer in the
|
|
|
|
|
documentation and/or other materials provided with the distribution.
|
|
|
|
|
- Neither the name of Internet Society, IETF or IETF Trust, nor the
|
|
|
|
|
names of specific contributors, may be used to endorse or promote
|
|
|
|
|
products derived from this software without specific prior written
|
|
|
|
|
permission.
|
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
|
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
|
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
|
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
|
|
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
|
|
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
|
|
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
|
|
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
|
|
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
|
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
|
|
|
POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
|
***********************************************************************/
|
|
|
|
|
|
2016-10-12 20:37:38 +02:00
|
|
|
#ifdef HAVE_CONFIG_H
|
|
|
|
|
#include "config.h"
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#include "main_FLP.h"
|
2015-10-02 19:20:50 +02:00
|
|
|
|
|
|
|
|
void silk_LTP_scale_ctrl_FLP(
|
|
|
|
|
silk_encoder_state_FLP *psEnc, /* I/O Encoder state FLP */
|
|
|
|
|
silk_encoder_control_FLP *psEncCtrl, /* I/O Encoder control FLP */
|
|
|
|
|
opus_int condCoding /* I The type of conditional coding to use */
|
|
|
|
|
)
|
|
|
|
|
{
|
|
|
|
|
opus_int round_loss;
|
|
|
|
|
|
|
|
|
|
if( condCoding == CODE_INDEPENDENTLY ) {
|
|
|
|
|
/* Only scale if first frame in packet */
|
|
|
|
|
round_loss = psEnc->sCmn.PacketLoss_perc + psEnc->sCmn.nFramesPerPacket;
|
|
|
|
|
psEnc->sCmn.indices.LTP_scaleIndex = (opus_int8)silk_LIMIT( round_loss * psEncCtrl->LTPredCodGain * 0.1f, 0.0f, 2.0f );
|
|
|
|
|
} else {
|
|
|
|
|
/* Default is minimum scaling */
|
|
|
|
|
psEnc->sCmn.indices.LTP_scaleIndex = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
psEncCtrl->LTP_scale = (silk_float)silk_LTPScales_table_Q14[ psEnc->sCmn.indices.LTP_scaleIndex ] / 16384.0f;
|
|
|
|
|
}
|
