62 lines
3.6 KiB
C
62 lines
3.6 KiB
C
/***********************************************************************
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Copyright (c) 2006-2011, Skype Limited. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, (subject to the limitations in the disclaimer below)
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are permitted provided that the following conditions are met:
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- Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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- Neither the name of Skype Limited, nor the names of specific
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contributors, may be used to endorse or promote products derived from
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this software without specific prior written permission.
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NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
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BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
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BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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***********************************************************************/
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#include "SKP_Silk_main_FIX.h"
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/* Rate-Distortion calculations for multiple input data vectors */
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void SKP_Silk_NLSF_VQ_rate_distortion_FIX(
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SKP_int32 *pRD_Q20, /* O Rate-distortion values [psNLSF_CBS->nVectors*N] */
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const SKP_Silk_NLSF_CBS *psNLSF_CBS, /* I NLSF codebook stage struct */
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const SKP_int *in_Q15, /* I Input vectors to be quantized */
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const SKP_int *w_Q6, /* I Weight vector */
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const SKP_int32 *rate_acc_Q5, /* I Accumulated rates from previous stage */
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const SKP_int mu_Q15, /* I Weight between weighted error and rate */
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const SKP_int N, /* I Number of input vectors to be quantized */
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const SKP_int LPC_order /* I LPC order */
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)
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{
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SKP_int i, n;
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SKP_int32 *pRD_vec_Q20;
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/* Compute weighted quantization errors for all input vectors over one codebook stage */
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SKP_Silk_NLSF_VQ_sum_error_FIX( pRD_Q20, in_Q15, w_Q6, psNLSF_CBS->CB_NLSF_Q15,
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N, psNLSF_CBS->nVectors, LPC_order );
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/* Loop over input vectors */
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pRD_vec_Q20 = pRD_Q20;
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for( n = 0; n < N; n++ ) {
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/* Add rate cost to error for each codebook vector */
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for( i = 0; i < psNLSF_CBS->nVectors; i++ ) {
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SKP_assert( rate_acc_Q5[ n ] + psNLSF_CBS->Rates_Q5[ i ] >= 0 );
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SKP_assert( rate_acc_Q5[ n ] + psNLSF_CBS->Rates_Q5[ i ] <= SKP_int16_MAX );
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pRD_vec_Q20[ i ] = SKP_SMLABB( pRD_vec_Q20[ i ], rate_acc_Q5[ n ] + psNLSF_CBS->Rates_Q5[ i ], mu_Q15 );
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SKP_assert( pRD_vec_Q20[ i ] >= 0 );
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}
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pRD_vec_Q20 += psNLSF_CBS->nVectors;
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}
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}
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