1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/libopus/silk/init_encoder.c Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,64 @@
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 +#ifdef HAVE_CONFIG_H
1.32 +#include "config.h"
1.33 +#endif
1.34 +#ifdef FIXED_POINT
1.35 +#include "main_FIX.h"
1.36 +#else
1.37 +#include "main_FLP.h"
1.38 +#endif
1.39 +#include "tuning_parameters.h"
1.40 +#include "cpu_support.h"
1.41 +
1.42 +/*********************************/
1.43 +/* Initialize Silk Encoder state */
1.44 +/*********************************/
1.45 +opus_int silk_init_encoder(
1.46 + silk_encoder_state_Fxx *psEnc, /* I/O Pointer to Silk FIX encoder state */
1.47 + int arch /* I Run-time architecture */
1.48 +)
1.49 +{
1.50 + opus_int ret = 0;
1.51 +
1.52 + /* Clear the entire encoder state */
1.53 + silk_memset( psEnc, 0, sizeof( silk_encoder_state_Fxx ) );
1.54 +
1.55 + psEnc->sCmn.arch = arch;
1.56 +
1.57 + psEnc->sCmn.variable_HP_smth1_Q15 = silk_LSHIFT( silk_lin2log( SILK_FIX_CONST( VARIABLE_HP_MIN_CUTOFF_HZ, 16 ) ) - ( 16 << 7 ), 8 );
1.58 + psEnc->sCmn.variable_HP_smth2_Q15 = psEnc->sCmn.variable_HP_smth1_Q15;
1.59 +
1.60 + /* Used to deactivate LSF interpolation, pitch prediction */
1.61 + psEnc->sCmn.first_frame_after_reset = 1;
1.62 +
1.63 + /* Initialize Silk VAD */
1.64 + ret += silk_VAD_Init( &psEnc->sCmn.sVAD );
1.65 +
1.66 + return ret;
1.67 +}
