Chris@69: /***********************************************************************
Chris@69: Copyright (c) 2006-2011, Skype Limited. All rights reserved.
Chris@69: Redistribution and use in source and binary forms, with or without
Chris@69: modification, are permitted provided that the following conditions
Chris@69: are met:
Chris@69: - Redistributions of source code must retain the above copyright notice,
Chris@69: this list of conditions and the following disclaimer.
Chris@69: - Redistributions in binary form must reproduce the above copyright
Chris@69: notice, this list of conditions and the following disclaimer in the
Chris@69: documentation and/or other materials provided with the distribution.
Chris@69: - Neither the name of Internet Society, IETF or IETF Trust, nor the
Chris@69: names of specific contributors, may be used to endorse or promote
Chris@69: products derived from this software without specific prior written
Chris@69: permission.
Chris@69: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
Chris@69: AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
Chris@69: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
Chris@69: ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
Chris@69: LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
Chris@69: CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
Chris@69: SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
Chris@69: INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
Chris@69: CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
Chris@69: ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
Chris@69: POSSIBILITY OF SUCH DAMAGE.
Chris@69: ***********************************************************************/
Chris@69: 
Chris@69: #ifdef HAVE_CONFIG_H
Chris@69: #include "config.h"
Chris@69: #endif
Chris@69: #ifdef FIXED_POINT
Chris@69: #include "main_FIX.h"
Chris@69: #else
Chris@69: #include "main_FLP.h"
Chris@69: #endif
Chris@69: #include "tuning_parameters.h"
Chris@69: #include "cpu_support.h"
Chris@69: 
Chris@69: /*********************************/
Chris@69: /* Initialize Silk Encoder state */
Chris@69: /*********************************/
Chris@69: opus_int silk_init_encoder(
Chris@69:     silk_encoder_state_Fxx          *psEnc,                                 /* I/O  Pointer to Silk FIX encoder state                                           */
Chris@69:     int                              arch                                   /* I    Run-time architecture                                                       */
Chris@69: )
Chris@69: {
Chris@69:     opus_int ret = 0;
Chris@69: 
Chris@69:     /* Clear the entire encoder state */
Chris@69:     silk_memset( psEnc, 0, sizeof( silk_encoder_state_Fxx ) );
Chris@69: 
Chris@69:     psEnc->sCmn.arch = arch;
Chris@69: 
Chris@69:     psEnc->sCmn.variable_HP_smth1_Q15 = silk_LSHIFT( silk_lin2log( SILK_FIX_CONST( VARIABLE_HP_MIN_CUTOFF_HZ, 16 ) ) - ( 16 << 7 ), 8 );
Chris@69:     psEnc->sCmn.variable_HP_smth2_Q15 = psEnc->sCmn.variable_HP_smth1_Q15;
Chris@69: 
Chris@69:     /* Used to deactivate LSF interpolation, pitch prediction */
Chris@69:     psEnc->sCmn.first_frame_after_reset = 1;
Chris@69: 
Chris@69:     /* Initialize Silk VAD */
Chris@69:     ret += silk_VAD_Init( &psEnc->sCmn.sVAD );
Chris@69: 
Chris@69:     return  ret;
Chris@69: }