optimized imports

1 files changed, 0 insertions, 309 deletions

diff --git a/src/main/jni/opus/celt/celt_lpc.c b/src/main/jni/opus/celt/celt_lpc.c
deleted file mode 100644
index fa29d626e..000000000
--- a/src/main/jni/opus/celt/celt_lpc.c
+++ /dev/null
@@ -1,309 +0,0 @@
-/* Copyright (c) 2009-2010 Xiph.Org Foundation
-   Written by Jean-Marc Valin */
-/*
-   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.
-
-   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 "celt_lpc.h"
-#include "stack_alloc.h"
-#include "mathops.h"
-#include "pitch.h"
-
-void _celt_lpc(
-      opus_val16       *_lpc, /* out: [0...p-1] LPC coefficients      */
-const opus_val32 *ac,  /* in:  [0...p] autocorrelation values  */
-int          p
-)
-{
-   int i, j;
-   opus_val32 r;
-   opus_val32 error = ac[0];
-#ifdef FIXED_POINT
-   opus_val32 lpc[LPC_ORDER];
-#else
-   float *lpc = _lpc;
-#endif
-
-   for (i = 0; i < p; i++)
-      lpc[i] = 0;
-   if (ac[0] != 0)
-   {
-      for (i = 0; i < p; i++) {
-         /* Sum up this iteration's reflection coefficient */
-         opus_val32 rr = 0;
-         for (j = 0; j < i; j++)
-            rr += MULT32_32_Q31(lpc[j],ac[i - j]);
-         rr += SHR32(ac[i + 1],3);
-         r = -frac_div32(SHL32(rr,3), error);
-         /*  Update LPC coefficients and total error */
-         lpc[i] = SHR32(r,3);
-         for (j = 0; j < (i+1)>>1; j++)
-         {
-            opus_val32 tmp1, tmp2;
-            tmp1 = lpc[j];
-            tmp2 = lpc[i-1-j];
-            lpc[j]     = tmp1 + MULT32_32_Q31(r,tmp2);
-            lpc[i-1-j] = tmp2 + MULT32_32_Q31(r,tmp1);
-         }
-
-         error = error - MULT32_32_Q31(MULT32_32_Q31(r,r),error);
-         /* Bail out once we get 30 dB gain */
-#ifdef FIXED_POINT
-         if (error<SHR32(ac[0],10))
-            break;
-#else
-         if (error<.001f*ac[0])
-            break;
-#endif
-      }
-   }
-#ifdef FIXED_POINT
-   for (i=0;i<p;i++)
-      _lpc[i] = ROUND16(lpc[i],16);
-#endif
-}
-
-void celt_fir(const opus_val16 *_x,
-         const opus_val16 *num,
-         opus_val16 *_y,
-         int N,
-         int ord,
-         opus_val16 *mem)
-{
-   int i,j;
-   VARDECL(opus_val16, rnum);
-   VARDECL(opus_val16, x);
-   SAVE_STACK;
-
-   ALLOC(rnum, ord, opus_val16);
-   ALLOC(x, N+ord, opus_val16);
-   for(i=0;i<ord;i++)
-      rnum[i] = num[ord-i-1];
-   for(i=0;i<ord;i++)
-      x[i] = mem[ord-i-1];
-   for (i=0;i<N;i++)
-      x[i+ord]=_x[i];
-   for(i=0;i<ord;i++)
-      mem[i] = _x[N-i-1];
-#ifdef SMALL_FOOTPRINT
-   for (i=0;i<N;i++)
-   {
-      opus_val32 sum = SHL32(EXTEND32(_x[i]), SIG_SHIFT);
-      for (j=0;j<ord;j++)
-      {
-         sum = MAC16_16(sum,rnum[j],x[i+j]);
-      }
-      _y[i] = SATURATE16(PSHR32(sum, SIG_SHIFT));
-   }
-#else
-   for (i=0;i<N-3;i+=4)
-   {
-      opus_val32 sum[4]={0,0,0,0};
-      xcorr_kernel(rnum, x+i, sum, ord);
-      _y[i  ] = SATURATE16(ADD32(EXTEND32(_x[i  ]), PSHR32(sum[0], SIG_SHIFT)));
-      _y[i+1] = SATURATE16(ADD32(EXTEND32(_x[i+1]), PSHR32(sum[1], SIG_SHIFT)));
-      _y[i+2] = SATURATE16(ADD32(EXTEND32(_x[i+2]), PSHR32(sum[2], SIG_SHIFT)));
-      _y[i+3] = SATURATE16(ADD32(EXTEND32(_x[i+3]), PSHR32(sum[3], SIG_SHIFT)));
-   }
-   for (;i<N;i++)
-   {
-      opus_val32 sum = 0;
-      for (j=0;j<ord;j++)
-         sum = MAC16_16(sum,rnum[j],x[i+j]);
-      _y[i] = SATURATE16(ADD32(EXTEND32(_x[i]), PSHR32(sum, SIG_SHIFT)));
-   }
-#endif
-   RESTORE_STACK;
-}
-
-void celt_iir(const opus_val32 *_x,
-         const opus_val16 *den,
-         opus_val32 *_y,
-         int N,
-         int ord,
-         opus_val16 *mem)
-{
-#ifdef SMALL_FOOTPRINT
-   int i,j;
-   for (i=0;i<N;i++)
-   {
-      opus_val32 sum = _x[i];
-      for (j=0;j<ord;j++)
-      {
-         sum -= MULT16_16(den[j],mem[j]);
-      }
-      for (j=ord-1;j>=1;j--)
-      {
-         mem[j]=mem[j-1];
-      }
-      mem[0] = ROUND16(sum,SIG_SHIFT);
-      _y[i] = sum;
-   }
-#else
-   int i,j;
-   VARDECL(opus_val16, rden);
-   VARDECL(opus_val16, y);
-   SAVE_STACK;
-
-   celt_assert((ord&3)==0);
-   ALLOC(rden, ord, opus_val16);
-   ALLOC(y, N+ord, opus_val16);
-   for(i=0;i<ord;i++)
-      rden[i] = den[ord-i-1];
-   for(i=0;i<ord;i++)
-      y[i] = -mem[ord-i-1];
-   for(;i<N+ord;i++)
-      y[i]=0;
-   for (i=0;i<N-3;i+=4)
-   {
-      /* Unroll by 4 as if it were an FIR filter */
-      opus_val32 sum[4];
-      sum[0]=_x[i];
-      sum[1]=_x[i+1];
-      sum[2]=_x[i+2];
-      sum[3]=_x[i+3];
-      xcorr_kernel(rden, y+i, sum, ord);
-
-      /* Patch up the result to compensate for the fact that this is an IIR */
-      y[i+ord  ] = -ROUND16(sum[0],SIG_SHIFT);
-      _y[i  ] = sum[0];
-      sum[1] = MAC16_16(sum[1], y[i+ord  ], den[0]);
-      y[i+ord+1] = -ROUND16(sum[1],SIG_SHIFT);
-      _y[i+1] = sum[1];
-      sum[2] = MAC16_16(sum[2], y[i+ord+1], den[0]);
-      sum[2] = MAC16_16(sum[2], y[i+ord  ], den[1]);
-      y[i+ord+2] = -ROUND16(sum[2],SIG_SHIFT);
-      _y[i+2] = sum[2];
-
-      sum[3] = MAC16_16(sum[3], y[i+ord+2], den[0]);
-      sum[3] = MAC16_16(sum[3], y[i+ord+1], den[1]);
-      sum[3] = MAC16_16(sum[3], y[i+ord  ], den[2]);
-      y[i+ord+3] = -ROUND16(sum[3],SIG_SHIFT);
-      _y[i+3] = sum[3];
-   }
-   for (;i<N;i++)
-   {
-      opus_val32 sum = _x[i];
-      for (j=0;j<ord;j++)
-         sum -= MULT16_16(rden[j],y[i+j]);
-      y[i+ord] = ROUND16(sum,SIG_SHIFT);
-      _y[i] = sum;
-   }
-   for(i=0;i<ord;i++)
-      mem[i] = _y[N-i-1];
-   RESTORE_STACK;
-#endif
-}
-
-int _celt_autocorr(
-                   const opus_val16 *x,   /*  in: [0...n-1] samples x   */
-                   opus_val32       *ac,  /* out: [0...lag-1] ac values */
-                   const opus_val16       *window,
-                   int          overlap,
-                   int          lag,
-                   int          n,
-                   int          arch
-                  )
-{
-   opus_val32 d;
-   int i, k;
-   int fastN=n-lag;
-   int shift;
-   const opus_val16 *xptr;
-   VARDECL(opus_val16, xx);
-   SAVE_STACK;
-   ALLOC(xx, n, opus_val16);
-   celt_assert(n>0);
-   celt_assert(overlap>=0);
-   if (overlap == 0)
-   {
-      xptr = x;
-   } else {
-      for (i=0;i<n;i++)
-         xx[i] = x[i];
-      for (i=0;i<overlap;i++)
-      {
-         xx[i] = MULT16_16_Q15(x[i],window[i]);
-         xx[n-i-1] = MULT16_16_Q15(x[n-i-1],window[i]);
-      }
-      xptr = xx;
-   }
-   shift=0;
-#ifdef FIXED_POINT
-   {
-      opus_val32 ac0;
-      ac0 = 1+(n<<7);
-      if (n&1) ac0 += SHR32(MULT16_16(xptr[0],xptr[0]),9);
-      for(i=(n&1);i<n;i+=2)
-      {
-         ac0 += SHR32(MULT16_16(xptr[i],xptr[i]),9);
-         ac0 += SHR32(MULT16_16(xptr[i+1],xptr[i+1]),9);
-      }
-
-      shift = celt_ilog2(ac0)-30+10;
-      shift = (shift)/2;
-      if (shift>0)
-      {
-         for(i=0;i<n;i++)
-            xx[i] = PSHR32(xptr[i], shift);
-         xptr = xx;
-      } else
-         shift = 0;
-   }
-#endif
-   celt_pitch_xcorr(xptr, xptr, ac, fastN, lag+1, arch);
-   for (k=0;k<=lag;k++)
-   {
-      for (i = k+fastN, d = 0; i < n; i++)
-         d = MAC16_16(d, xptr[i], xptr[i-k]);
-      ac[k] += d;
-   }
-#ifdef FIXED_POINT
-   shift = 2*shift;
-   if (shift<=0)
-      ac[0] += SHL32((opus_int32)1, -shift);
-   if (ac[0] < 268435456)
-   {
-      int shift2 = 29 - EC_ILOG(ac[0]);
-      for (i=0;i<=lag;i++)
-         ac[i] = SHL32(ac[i], shift2);
-      shift -= shift2;
-   } else if (ac[0] >= 536870912)
-   {
-      int shift2=1;
-      if (ac[0] >= 1073741824)
-         shift2++;
-      for (i=0;i<=lag;i++)
-         ac[i] = SHR32(ac[i], shift2);
-      shift += shift2;
-   }
-#endif
-
-   RESTORE_STACK;
-   return shift;
-}