annotate src/opus-1.3/silk/init_encoder.c @ 169:223a55898ab9 tip default

Add null config files
author Chris Cannam <cannam@all-day-breakfast.com>
date Mon, 02 Mar 2020 14:03:47 +0000
parents 4664ac0c1032
children
rev   line source
cannam@154 1 /***********************************************************************
cannam@154 2 Copyright (c) 2006-2011, Skype Limited. All rights reserved.
cannam@154 3 Redistribution and use in source and binary forms, with or without
cannam@154 4 modification, are permitted provided that the following conditions
cannam@154 5 are met:
cannam@154 6 - Redistributions of source code must retain the above copyright notice,
cannam@154 7 this list of conditions and the following disclaimer.
cannam@154 8 - Redistributions in binary form must reproduce the above copyright
cannam@154 9 notice, this list of conditions and the following disclaimer in the
cannam@154 10 documentation and/or other materials provided with the distribution.
cannam@154 11 - Neither the name of Internet Society, IETF or IETF Trust, nor the
cannam@154 12 names of specific contributors, may be used to endorse or promote
cannam@154 13 products derived from this software without specific prior written
cannam@154 14 permission.
cannam@154 15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
cannam@154 16 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
cannam@154 17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
cannam@154 18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
cannam@154 19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
cannam@154 20 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
cannam@154 21 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
cannam@154 22 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
cannam@154 23 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
cannam@154 24 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
cannam@154 25 POSSIBILITY OF SUCH DAMAGE.
cannam@154 26 ***********************************************************************/
cannam@154 27
cannam@154 28 #ifdef HAVE_CONFIG_H
cannam@154 29 #include "config.h"
cannam@154 30 #endif
cannam@154 31 #ifdef FIXED_POINT
cannam@154 32 #include "main_FIX.h"
cannam@154 33 #else
cannam@154 34 #include "main_FLP.h"
cannam@154 35 #endif
cannam@154 36 #include "tuning_parameters.h"
cannam@154 37 #include "cpu_support.h"
cannam@154 38
cannam@154 39 /*********************************/
cannam@154 40 /* Initialize Silk Encoder state */
cannam@154 41 /*********************************/
cannam@154 42 opus_int silk_init_encoder(
cannam@154 43 silk_encoder_state_Fxx *psEnc, /* I/O Pointer to Silk FIX encoder state */
cannam@154 44 int arch /* I Run-time architecture */
cannam@154 45 )
cannam@154 46 {
cannam@154 47 opus_int ret = 0;
cannam@154 48
cannam@154 49 /* Clear the entire encoder state */
cannam@154 50 silk_memset( psEnc, 0, sizeof( silk_encoder_state_Fxx ) );
cannam@154 51
cannam@154 52 psEnc->sCmn.arch = arch;
cannam@154 53
cannam@154 54 psEnc->sCmn.variable_HP_smth1_Q15 = silk_LSHIFT( silk_lin2log( SILK_FIX_CONST( VARIABLE_HP_MIN_CUTOFF_HZ, 16 ) ) - ( 16 << 7 ), 8 );
cannam@154 55 psEnc->sCmn.variable_HP_smth2_Q15 = psEnc->sCmn.variable_HP_smth1_Q15;
cannam@154 56
cannam@154 57 /* Used to deactivate LSF interpolation, pitch prediction */
cannam@154 58 psEnc->sCmn.first_frame_after_reset = 1;
cannam@154 59
cannam@154 60 /* Initialize Silk VAD */
cannam@154 61 ret += silk_VAD_Init( &psEnc->sCmn.sVAD );
cannam@154 62
cannam@154 63 return ret;
cannam@154 64 }