ref: 7664d811a8cd9ef4f9a593ce2a9bf731e87e2040
parent: be236b120401d07b4e6746cd35034b5bd117e8a4
author: Jean-Marc Valin <[email protected]>
date: Fri Oct 28 22:15:38 EDT 2011
Removes unused order 14 in silk_LPC_analysis_filter_FLP()
--- a/silk/float/LPC_analysis_filter_FLP.c
+++ b/silk/float/LPC_analysis_filter_FLP.c
@@ -77,42 +77,6 @@
}
}
-/* 14th order LPC analysis filter, does not write first 14 samples */
-static inline void silk_LPC_analysis_filter14_FLP(
- silk_float r_LPC[], /* O LPC residual signal */
- const silk_float PredCoef[], /* I LPC coefficients */
- const silk_float s[], /* I Input signal */
- const opus_int length /* I Length of input signal */
-)
-{- opus_int ix;
- silk_float LPC_pred;
- const silk_float *s_ptr;
-
- for( ix = 14; ix < length; ix++ ) {- s_ptr = &s[ix - 1];
-
- /* short-term prediction */
- LPC_pred = s_ptr[ 0 ] * PredCoef[ 0 ] +
- s_ptr[ -1 ] * PredCoef[ 1 ] +
- s_ptr[ -2 ] * PredCoef[ 2 ] +
- s_ptr[ -3 ] * PredCoef[ 3 ] +
- s_ptr[ -4 ] * PredCoef[ 4 ] +
- s_ptr[ -5 ] * PredCoef[ 5 ] +
- s_ptr[ -6 ] * PredCoef[ 6 ] +
- s_ptr[ -7 ] * PredCoef[ 7 ] +
- s_ptr[ -8 ] * PredCoef[ 8 ] +
- s_ptr[ -9 ] * PredCoef[ 9 ] +
- s_ptr[ -10 ] * PredCoef[ 10 ] +
- s_ptr[ -11 ] * PredCoef[ 11 ] +
- s_ptr[ -12 ] * PredCoef[ 12 ] +
- s_ptr[ -13 ] * PredCoef[ 13 ];
-
- /* prediction error */
- r_LPC[ix] = s_ptr[ 1 ] - LPC_pred;
- }
-}
-
/* 12th order LPC analysis filter, does not write first 12 samples */
static inline void silk_LPC_analysis_filter12_FLP(
silk_float r_LPC[], /* O LPC residual signal */
@@ -268,10 +232,6 @@
case 12:
silk_LPC_analysis_filter12_FLP( r_LPC, PredCoef, s, length );
- break;
-
- case 14:
- silk_LPC_analysis_filter14_FLP( r_LPC, PredCoef, s, length );
break;
case 16: