1 files changed, 0 insertions, 55 deletions
diff --git a/drivers/opus/silk/log2lin.c b/drivers/opus/silk/log2lin.c
deleted file mode 100644
index 8d14150a41..0000000000
--- a/drivers/opus/silk/log2lin.c
+++ /dev/null
@@ -1,55 +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.
-***********************************************************************/
-#include "opus/opus_config.h"
-
-#include "opus/silk/SigProc_FIX.h"
-
-/* Approximation of 2^() (very close inverse of silk_lin2log()) */
-/* Convert input to a linear scale    */
-opus_int32 silk_log2lin(
-    const opus_int32            inLog_Q7            /* I  input on log scale                                            */
-)
-{
-    opus_int32 out, frac_Q7;
-
-    if( inLog_Q7 < 0 ) {
-        return 0;
-    } else if ( inLog_Q7 >= 3967 ) {
-        return silk_int32_MAX;
-    }
-
-    out = silk_LSHIFT( 1, silk_RSHIFT( inLog_Q7, 7 ) );
-    frac_Q7 = inLog_Q7 & 0x7F;
-    if( inLog_Q7 < 2048 ) {
-        /* Piece-wise parabolic approximation */
-        out = silk_ADD_RSHIFT32( out, silk_MUL( out, silk_SMLAWB( frac_Q7, silk_SMULBB( frac_Q7, 128 - frac_Q7 ), -174 ) ), 7 );
-    } else {
-        /* Piece-wise parabolic approximation */
-        out = silk_MLA( out, silk_RSHIFT( out, 7 ), silk_SMLAWB( frac_Q7, silk_SMULBB( frac_Q7, 128 - frac_Q7 ), -174 ) );
-    }
-    return out;
-}