1*a58d3d2aSXin Li /***********************************************************************
2*a58d3d2aSXin Li Copyright (c) 2006-2011, Skype Limited. All rights reserved.
3*a58d3d2aSXin Li Redistribution and use in source and binary forms, with or without
4*a58d3d2aSXin Li modification, are permitted provided that the following conditions
5*a58d3d2aSXin Li are met:
6*a58d3d2aSXin Li - Redistributions of source code must retain the above copyright notice,
7*a58d3d2aSXin Li this list of conditions and the following disclaimer.
8*a58d3d2aSXin Li - Redistributions in binary form must reproduce the above copyright
9*a58d3d2aSXin Li notice, this list of conditions and the following disclaimer in the
10*a58d3d2aSXin Li documentation and/or other materials provided with the distribution.
11*a58d3d2aSXin Li - Neither the name of Internet Society, IETF or IETF Trust, nor the
12*a58d3d2aSXin Li names of specific contributors, may be used to endorse or promote
13*a58d3d2aSXin Li products derived from this software without specific prior written
14*a58d3d2aSXin Li permission.
15*a58d3d2aSXin Li THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16*a58d3d2aSXin Li AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17*a58d3d2aSXin Li IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18*a58d3d2aSXin Li ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
19*a58d3d2aSXin Li LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20*a58d3d2aSXin Li CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21*a58d3d2aSXin Li SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22*a58d3d2aSXin Li INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23*a58d3d2aSXin Li CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24*a58d3d2aSXin Li ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25*a58d3d2aSXin Li POSSIBILITY OF SUCH DAMAGE.
26*a58d3d2aSXin Li ***********************************************************************/
27*a58d3d2aSXin Li
28*a58d3d2aSXin Li #ifdef HAVE_CONFIG_H
29*a58d3d2aSXin Li #include "config.h"
30*a58d3d2aSXin Li #endif
31*a58d3d2aSXin Li #ifdef FIXED_POINT
32*a58d3d2aSXin Li #include "main_FIX.h"
33*a58d3d2aSXin Li #else
34*a58d3d2aSXin Li #include "main_FLP.h"
35*a58d3d2aSXin Li #endif
36*a58d3d2aSXin Li #include "tuning_parameters.h"
37*a58d3d2aSXin Li #include "cpu_support.h"
38*a58d3d2aSXin Li
39*a58d3d2aSXin Li #ifdef ENABLE_DRED
40*a58d3d2aSXin Li #include "dred_encoder.h"
41*a58d3d2aSXin Li #endif
42*a58d3d2aSXin Li
43*a58d3d2aSXin Li /*********************************/
44*a58d3d2aSXin Li /* Initialize Silk Encoder state */
45*a58d3d2aSXin Li /*********************************/
silk_init_encoder(silk_encoder_state_Fxx * psEnc,int arch)46*a58d3d2aSXin Li opus_int silk_init_encoder(
47*a58d3d2aSXin Li silk_encoder_state_Fxx *psEnc, /* I/O Pointer to Silk FIX encoder state */
48*a58d3d2aSXin Li int arch /* I Run-time architecture */
49*a58d3d2aSXin Li )
50*a58d3d2aSXin Li {
51*a58d3d2aSXin Li opus_int ret = 0;
52*a58d3d2aSXin Li
53*a58d3d2aSXin Li /* Clear the entire encoder state */
54*a58d3d2aSXin Li silk_memset( psEnc, 0, sizeof( silk_encoder_state_Fxx ) );
55*a58d3d2aSXin Li
56*a58d3d2aSXin Li psEnc->sCmn.arch = arch;
57*a58d3d2aSXin Li
58*a58d3d2aSXin Li psEnc->sCmn.variable_HP_smth1_Q15 = silk_LSHIFT( silk_lin2log( SILK_FIX_CONST( VARIABLE_HP_MIN_CUTOFF_HZ, 16 ) ) - ( 16 << 7 ), 8 );
59*a58d3d2aSXin Li psEnc->sCmn.variable_HP_smth2_Q15 = psEnc->sCmn.variable_HP_smth1_Q15;
60*a58d3d2aSXin Li
61*a58d3d2aSXin Li /* Used to deactivate LSF interpolation, pitch prediction */
62*a58d3d2aSXin Li psEnc->sCmn.first_frame_after_reset = 1;
63*a58d3d2aSXin Li
64*a58d3d2aSXin Li /* Initialize Silk VAD */
65*a58d3d2aSXin Li ret += silk_VAD_Init( &psEnc->sCmn.sVAD );
66*a58d3d2aSXin Li
67*a58d3d2aSXin Li return ret;
68*a58d3d2aSXin Li }
69