Upgrade opus 1.0.2 -> 1.1

1 files changed, 0 insertions, 104 deletions

diff --git a/src/opus-1.0.2/silk/float/find_LPC_FLP.c b/src/opus-1.0.2/silk/float/find_LPC_FLP.c
deleted file mode 100644
index 66fa7dd4..00000000
--- a/src/opus-1.0.2/silk/float/find_LPC_FLP.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Internet Society, IETF or IETF Trust, nor the 
-names of specific contributors, may be used to endorse or promote
-products derived from this software without specific prior written
-permission.
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS”
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
-LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "define.h"
-#include "main_FLP.h"
-#include "tuning_parameters.h"
-
-/* LPC analysis */
-void silk_find_LPC_FLP(
-    silk_encoder_state              *psEncC,                            /* I/O  Encoder state                               */
-    opus_int16                      NLSF_Q15[],                         /* O    NLSFs                                       */
-    const silk_float                x[],                                /* I    Input signal                                */
-    const silk_float                minInvGain                          /* I    Inverse of max prediction gain              */
-)
-{
-    opus_int    k, subfr_length;
-    silk_float  a[ MAX_LPC_ORDER ];
-
-    /* Used only for NLSF interpolation */
-    silk_float  res_nrg, res_nrg_2nd, res_nrg_interp;
-    opus_int16  NLSF0_Q15[ MAX_LPC_ORDER ];
-    silk_float  a_tmp[ MAX_LPC_ORDER ];
-    silk_float  LPC_res[ MAX_FRAME_LENGTH + MAX_NB_SUBFR * MAX_LPC_ORDER ];
-
-    subfr_length = psEncC->subfr_length + psEncC->predictLPCOrder;
-
-    /* Default: No interpolation */
-    psEncC->indices.NLSFInterpCoef_Q2 = 4;
-
-    /* Burg AR analysis for the full frame */
-    res_nrg = silk_burg_modified_FLP( a, x, minInvGain, subfr_length, psEncC->nb_subfr, psEncC->predictLPCOrder );
-
-    if( psEncC->useInterpolatedNLSFs && !psEncC->first_frame_after_reset && psEncC->nb_subfr == MAX_NB_SUBFR ) {
-        /* Optimal solution for last 10 ms; subtract residual energy here, as that's easier than        */
-        /* adding it to the residual energy of the first 10 ms in each iteration of the search below    */
-        res_nrg -= silk_burg_modified_FLP( a_tmp, x + ( MAX_NB_SUBFR / 2 ) * subfr_length, minInvGain, subfr_length, MAX_NB_SUBFR / 2, psEncC->predictLPCOrder );
-
-        /* Convert to NLSFs */
-        silk_A2NLSF_FLP( NLSF_Q15, a_tmp, psEncC->predictLPCOrder );
-
-        /* Search over interpolation indices to find the one with lowest residual energy */
-        res_nrg_2nd = silk_float_MAX;
-        for( k = 3; k >= 0; k-- ) {
-            /* Interpolate NLSFs for first half */
-            silk_interpolate( NLSF0_Q15, psEncC->prev_NLSFq_Q15, NLSF_Q15, k, psEncC->predictLPCOrder );
-
-            /* Convert to LPC for residual energy evaluation */
-            silk_NLSF2A_FLP( a_tmp, NLSF0_Q15, psEncC->predictLPCOrder );
-
-            /* Calculate residual energy with LSF interpolation */
-            silk_LPC_analysis_filter_FLP( LPC_res, a_tmp, x, 2 * subfr_length, psEncC->predictLPCOrder );
-            res_nrg_interp = (silk_float)(
-                silk_energy_FLP( LPC_res + psEncC->predictLPCOrder,                subfr_length - psEncC->predictLPCOrder ) +
-                silk_energy_FLP( LPC_res + psEncC->predictLPCOrder + subfr_length, subfr_length - psEncC->predictLPCOrder ) );
-
-            /* Determine whether current interpolated NLSFs are best so far */
-            if( res_nrg_interp < res_nrg ) {
-                /* Interpolation has lower residual energy */
-                res_nrg = res_nrg_interp;
-                psEncC->indices.NLSFInterpCoef_Q2 = (opus_int8)k;
-            } else if( res_nrg_interp > res_nrg_2nd ) {
-                /* No reason to continue iterating - residual energies will continue to climb */
-                break;
-            }
-            res_nrg_2nd = res_nrg_interp;
-        }
-    }
-
-    if( psEncC->indices.NLSFInterpCoef_Q2 == 4 ) {
-        /* NLSF interpolation is currently inactive, calculate NLSFs from full frame AR coefficients */
-        silk_A2NLSF_FLP( NLSF_Q15, a, psEncC->predictLPCOrder );
-    }
-
-    silk_assert( psEncC->indices.NLSFInterpCoef_Q2 == 4 || 
-        ( psEncC->useInterpolatedNLSFs && !psEncC->first_frame_after_reset && psEncC->nb_subfr == MAX_NB_SUBFR ) );
-}