1 files changed, 0 insertions, 76 deletions
diff --git a/src/opus-1.0.2/silk/float/LPC_inv_pred_gain_FLP.c b/src/opus-1.0.2/silk/float/LPC_inv_pred_gain_FLP.c
deleted file mode 100644
index 8645f77f..00000000
--- a/src/opus-1.0.2/silk/float/LPC_inv_pred_gain_FLP.c
+++ /dev/null
@@ -1,76 +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 "SigProc_FIX.h"
-#include "SigProc_FLP.h"
-
-#define RC_THRESHOLD        0.9999f
-
-/* compute inverse of LPC prediction gain, and                          */
-/* test if LPC coefficients are stable (all poles within unit circle)   */
-/* this code is based on silk_a2k_FLP()                                 */
-silk_float silk_LPC_inverse_pred_gain_FLP(  /* O    return inverse prediction gain, energy domain               */
-    const silk_float    *A,                 /* I    prediction coefficients [order]                             */
-    opus_int32          order               /* I    prediction order                                            */
-)
-{
-    opus_int   k, n;
-    double     invGain, rc, rc_mult1, rc_mult2;
-    silk_float Atmp[ 2 ][ SILK_MAX_ORDER_LPC ];
-    silk_float *Aold, *Anew;
-
-    Anew = Atmp[ order & 1 ];
-    silk_memcpy( Anew, A, order * sizeof(silk_float) );
-
-    invGain = 1.0;
-    for( k = order - 1; k > 0; k-- ) {
-        rc = -Anew[ k ];
-        if( rc > RC_THRESHOLD || rc < -RC_THRESHOLD ) {
-            return 0.0f;
-        }
-        rc_mult1 = 1.0f - rc * rc;
-        rc_mult2 = 1.0f / rc_mult1;
-        invGain *= rc_mult1;
-        /* swap pointers */
-        Aold = Anew;
-        Anew = Atmp[ k & 1 ];
-        for( n = 0; n < k; n++ ) {
-            Anew[ n ] = (silk_float)( ( Aold[ n ] - Aold[ k - n - 1 ] * rc ) * rc_mult2 );
-        }
-    }
-    rc = -Anew[ 0 ];
-    if( rc > RC_THRESHOLD || rc < -RC_THRESHOLD ) {
-        return 0.0f;
-    }
-    rc_mult1 = 1.0f - rc * rc;
-    invGain *= rc_mult1;
-    return (silk_float)invGain;
-}