12bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian/* Copyright (c) 2007-2008 CSIRO 22bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian Copyright (c) 2007-2010 Xiph.Org Foundation 32bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian Copyright (c) 2008 Gregory Maxwell 42bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian Written by Jean-Marc Valin and Gregory Maxwell */ 52bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian/* 62bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian Redistribution and use in source and binary forms, with or without 72bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian modification, are permitted provided that the following conditions 82bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian are met: 92bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian - Redistributions of source code must retain the above copyright 112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian notice, this list of conditions and the following disclaimer. 122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian - Redistributions in binary form must reproduce the above copyright 142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian notice, this list of conditions and the following disclaimer in the 152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian documentation and/or other materials provided with the distribution. 162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian*/ 292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef HAVE_CONFIG_H 312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "config.h" 322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#define CELT_C 352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "os_support.h" 372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "mdct.h" 382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include <math.h> 392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "celt.h" 402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "pitch.h" 412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "bands.h" 422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "modes.h" 432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "entcode.h" 442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "quant_bands.h" 452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "rate.h" 462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "stack_alloc.h" 472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "mathops.h" 482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "float_cast.h" 492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include <stdarg.h> 502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "celt_lpc.h" 512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "vq.h" 522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef PACKAGE_VERSION 542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#define PACKAGE_VERSION "unknown" 552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianint resampling_factor(opus_int32 rate) 592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int ret; 612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian switch (rate) 622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case 48000: 642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = 1; 652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case 24000: 672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = 2; 682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case 16000: 702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = 3; 712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case 12000: 732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = 4; 742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case 8000: 762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = 6; 772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian default: 792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef CUSTOM_MODES 802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_assert(0); 812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = 0; 832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return ret; 862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef OVERRIDE_COMB_FILTER_CONST 892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic void comb_filter_const(opus_val32 *y, opus_val32 *x, int T, int N, 902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 g10, opus_val16 g11, opus_val16 g12) 912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 x0, x1, x2, x3, x4; 932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int i; 942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x4 = x[-T-2]; 952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x3 = x[-T-1]; 962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x2 = x[-T]; 972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x1 = x[-T+1]; 982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<N;i++) 992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 1002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x0=x[i-T+2]; 1012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian y[i] = x[i] 1022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian + MULT16_32_Q15(g10,x2) 1032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian + MULT16_32_Q15(g11,ADD32(x1,x3)) 1042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian + MULT16_32_Q15(g12,ADD32(x0,x4)); 1052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x4=x3; 1062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x3=x2; 1072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x2=x1; 1082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x1=x0; 1092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 1102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 1122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 1132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianvoid comb_filter(opus_val32 *y, opus_val32 *x, int T0, int T1, int N, 1152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 g0, opus_val16 g1, int tapset0, int tapset1, 1162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian const opus_val16 *window, int overlap) 1172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 1182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int i; 1192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* printf ("%d %d %f %f\n", T0, T1, g0, g1); */ 1202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 g00, g01, g02, g10, g11, g12; 1212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 x0, x1, x2, x3, x4; 1222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian static const opus_val16 gains[3][3] = { 1232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian {QCONST16(0.3066406250f, 15), QCONST16(0.2170410156f, 15), QCONST16(0.1296386719f, 15)}, 1242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian {QCONST16(0.4638671875f, 15), QCONST16(0.2680664062f, 15), QCONST16(0.f, 15)}, 1252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian {QCONST16(0.7998046875f, 15), QCONST16(0.1000976562f, 15), QCONST16(0.f, 15)}}; 1262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (g0==0 && g1==0) 1282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 1292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* OPT: Happens to work without the OPUS_MOVE(), but only because the current encoder already copies x to y */ 1302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (x!=y) 1312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian OPUS_MOVE(y, x, N); 1322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return; 1332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 1342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian g00 = MULT16_16_Q15(g0, gains[tapset0][0]); 1352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian g01 = MULT16_16_Q15(g0, gains[tapset0][1]); 1362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian g02 = MULT16_16_Q15(g0, gains[tapset0][2]); 1372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian g10 = MULT16_16_Q15(g1, gains[tapset1][0]); 1382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian g11 = MULT16_16_Q15(g1, gains[tapset1][1]); 1392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian g12 = MULT16_16_Q15(g1, gains[tapset1][2]); 1402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x1 = x[-T1+1]; 1412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x2 = x[-T1 ]; 1422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x3 = x[-T1-1]; 1432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x4 = x[-T1-2]; 1442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<overlap;i++) 1452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 1462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 f; 1472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x0=x[i-T1+2]; 1482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian f = MULT16_16_Q15(window[i],window[i]); 1492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian y[i] = x[i] 1502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian + MULT16_32_Q15(MULT16_16_Q15((Q15ONE-f),g00),x[i-T0]) 1512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian + MULT16_32_Q15(MULT16_16_Q15((Q15ONE-f),g01),ADD32(x[i-T0+1],x[i-T0-1])) 1522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian + MULT16_32_Q15(MULT16_16_Q15((Q15ONE-f),g02),ADD32(x[i-T0+2],x[i-T0-2])) 1532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian + MULT16_32_Q15(MULT16_16_Q15(f,g10),x2) 1542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian + MULT16_32_Q15(MULT16_16_Q15(f,g11),ADD32(x1,x3)) 1552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian + MULT16_32_Q15(MULT16_16_Q15(f,g12),ADD32(x0,x4)); 1562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x4=x3; 1572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x3=x2; 1582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x2=x1; 1592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x1=x0; 1602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 1622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (g1==0) 1632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 1642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* OPT: Happens to work without the OPUS_MOVE(), but only because the current encoder already copies x to y */ 1652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (x!=y) 1662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian OPUS_MOVE(y+overlap, x+overlap, N-overlap); 1672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return; 1682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 1692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Compute the part with the constant filter. */ 1712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian comb_filter_const(y+i, x+i, T1, N-i, g10, g11, g12); 1722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 1732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianconst signed char tf_select_table[4][8] = { 1752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian {0, -1, 0, -1, 0,-1, 0,-1}, 1762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian {0, -1, 0, -2, 1, 0, 1,-1}, 1772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian {0, -2, 0, -3, 2, 0, 1,-1}, 1782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian {0, -2, 0, -3, 3, 0, 1,-1}, 1792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian}; 1802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianvoid init_caps(const CELTMode *m,int *cap,int LM,int C) 1832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 1842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int i; 1852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<m->nbEBands;i++) 1862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 1872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int N; 1882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian N=(m->eBands[i+1]-m->eBands[i])<<LM; 1892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian cap[i] = (m->cache.caps[m->nbEBands*(2*LM+C-1)+i]+64)*C*N>>2; 1902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 1912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 1922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianconst char *opus_strerror(int error) 1962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 1972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian static const char * const error_strings[8] = { 1982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "success", 1992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "invalid argument", 2002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "buffer too small", 2012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "internal error", 2022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "corrupted stream", 2032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "request not implemented", 2042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "invalid state", 2052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "memory allocation failed" 2062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian }; 2072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (error > 0 || error < -7) 2082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return "unknown error"; 2092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 2102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return error_strings[-error]; 2112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 2122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 2132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianconst char *opus_get_version_string(void) 2142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 2152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return "libopus " PACKAGE_VERSION 2162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef FIXED_POINT 2172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "-fixed" 2182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 2192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef FUZZING 2202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "-fuzzing" 2212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 2222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ; 2232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 224