From a68df043bfbc7f8f38332143577877846631eca4 Mon Sep 17 00:00:00 2001 From: Michał Cichoń Date: Tue, 25 Aug 2015 19:58:37 +0200 Subject: Update build environment - remove faad2 - remove mad - remove polarssl - remove pthreads - add libcurl - add vtparse with UTF8 support - update project to use Visual Studio 2015 --- faad2/src/libfaad/sbr_qmf.c | 636 -------------------------------------------- 1 file changed, 636 deletions(-) delete mode 100644 faad2/src/libfaad/sbr_qmf.c (limited to 'faad2/src/libfaad/sbr_qmf.c') diff --git a/faad2/src/libfaad/sbr_qmf.c b/faad2/src/libfaad/sbr_qmf.c deleted file mode 100644 index 0f1b9e2..0000000 --- a/faad2/src/libfaad/sbr_qmf.c +++ /dev/null @@ -1,636 +0,0 @@ -/* -** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding -** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com -** -** This program is free software; you can redistribute it and/or modify -** it under the terms of the GNU General Public License as published by -** the Free Software Foundation; either version 2 of the License, or -** (at your option) any later version. -** -** This program is distributed in the hope that it will be useful, -** but WITHOUT ANY WARRANTY; without even the implied warranty of -** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -** GNU General Public License for more details. -** -** You should have received a copy of the GNU General Public License -** along with this program; if not, write to the Free Software -** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -** -** Any non-GPL usage of this software or parts of this software is strictly -** forbidden. -** -** The "appropriate copyright message" mentioned in section 2c of the GPLv2 -** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com" -** -** Commercial non-GPL licensing of this software is possible. -** For more info contact Nero AG through Mpeg4AAClicense@nero.com. -** -** $Id: sbr_qmf.c,v 1.32 2007/11/01 12:33:36 menno Exp $ -**/ - -#include "common.h" -#include "structs.h" - -#ifdef SBR_DEC - - -#include -#include -#include "sbr_dct.h" -#include "sbr_qmf.h" -#include "sbr_qmf_c.h" -#include "sbr_syntax.h" - -qmfa_info *qmfa_init(uint8_t channels) -{ - qmfa_info *qmfa = (qmfa_info*)faad_malloc(sizeof(qmfa_info)); - - /* x is implemented as double ringbuffer */ - qmfa->x = (real_t*)faad_malloc(2 * channels * 10 * sizeof(real_t)); - memset(qmfa->x, 0, 2 * channels * 10 * sizeof(real_t)); - - /* ringbuffer index */ - qmfa->x_index = 0; - - qmfa->channels = channels; - - return qmfa; -} - -void qmfa_end(qmfa_info *qmfa) -{ - if (qmfa) - { - if (qmfa->x) faad_free(qmfa->x); - faad_free(qmfa); - } -} - -void sbr_qmf_analysis_32(sbr_info *sbr, qmfa_info *qmfa, const real_t *input, - qmf_t X[MAX_NTSRHFG][64], uint8_t offset, uint8_t kx) -{ - ALIGN real_t u[64]; -#ifndef SBR_LOW_POWER - ALIGN real_t in_real[32], in_imag[32], out_real[32], out_imag[32]; -#else - ALIGN real_t y[32]; -#endif - uint32_t in = 0; - uint8_t l; - - /* qmf subsample l */ - for (l = 0; l < sbr->numTimeSlotsRate; l++) - { - int16_t n; - - /* shift input buffer x */ - /* input buffer is not shifted anymore, x is implemented as double ringbuffer */ - //memmove(qmfa->x + 32, qmfa->x, (320-32)*sizeof(real_t)); - - /* add new samples to input buffer x */ - for (n = 32 - 1; n >= 0; n--) - { -#ifdef FIXED_POINT - qmfa->x[qmfa->x_index + n] = qmfa->x[qmfa->x_index + n + 320] = (input[in++]) >> 4; -#else - qmfa->x[qmfa->x_index + n] = qmfa->x[qmfa->x_index + n + 320] = input[in++]; -#endif - } - - /* window and summation to create array u */ - for (n = 0; n < 64; n++) - { - u[n] = MUL_F(qmfa->x[qmfa->x_index + n], qmf_c[2*n]) + - MUL_F(qmfa->x[qmfa->x_index + n + 64], qmf_c[2*(n + 64)]) + - MUL_F(qmfa->x[qmfa->x_index + n + 128], qmf_c[2*(n + 128)]) + - MUL_F(qmfa->x[qmfa->x_index + n + 192], qmf_c[2*(n + 192)]) + - MUL_F(qmfa->x[qmfa->x_index + n + 256], qmf_c[2*(n + 256)]); - } - - /* update ringbuffer index */ - qmfa->x_index -= 32; - if (qmfa->x_index < 0) - qmfa->x_index = (320-32); - - /* calculate 32 subband samples by introducing X */ -#ifdef SBR_LOW_POWER - y[0] = u[48]; - for (n = 1; n < 16; n++) - y[n] = u[n+48] + u[48-n]; - for (n = 16; n < 32; n++) - y[n] = -u[n-16] + u[48-n]; - - DCT3_32_unscaled(u, y); - - for (n = 0; n < 32; n++) - { - if (n < kx) - { -#ifdef FIXED_POINT - QMF_RE(X[l + offset][n]) = u[n] /*<< 1*/; -#else - QMF_RE(X[l + offset][n]) = 2. * u[n]; -#endif - } else { - QMF_RE(X[l + offset][n]) = 0; - } - } -#else - - // Reordering of data moved from DCT_IV to here - in_imag[31] = u[1]; - in_real[0] = u[0]; - for (n = 1; n < 31; n++) - { - in_imag[31 - n] = u[n+1]; - in_real[n] = -u[64-n]; - } - in_imag[0] = u[32]; - in_real[31] = -u[33]; - - // dct4_kernel is DCT_IV without reordering which is done before and after FFT - dct4_kernel(in_real, in_imag, out_real, out_imag); - - // Reordering of data moved from DCT_IV to here - for (n = 0; n < 16; n++) { - if (2*n+1 < kx) { -#ifdef FIXED_POINT - QMF_RE(X[l + offset][2*n]) = out_real[n]; - QMF_IM(X[l + offset][2*n]) = out_imag[n]; - QMF_RE(X[l + offset][2*n+1]) = -out_imag[31-n]; - QMF_IM(X[l + offset][2*n+1]) = -out_real[31-n]; -#else - QMF_RE(X[l + offset][2*n]) = 2. * out_real[n]; - QMF_IM(X[l + offset][2*n]) = 2. * out_imag[n]; - QMF_RE(X[l + offset][2*n+1]) = -2. * out_imag[31-n]; - QMF_IM(X[l + offset][2*n+1]) = -2. * out_real[31-n]; -#endif - } else { - if (2*n < kx) { -#ifdef FIXED_POINT - QMF_RE(X[l + offset][2*n]) = out_real[n]; - QMF_IM(X[l + offset][2*n]) = out_imag[n]; -#else - QMF_RE(X[l + offset][2*n]) = 2. * out_real[n]; - QMF_IM(X[l + offset][2*n]) = 2. * out_imag[n]; -#endif - } - else { - QMF_RE(X[l + offset][2*n]) = 0; - QMF_IM(X[l + offset][2*n]) = 0; - } - QMF_RE(X[l + offset][2*n+1]) = 0; - QMF_IM(X[l + offset][2*n+1]) = 0; - } - } -#endif - } -} - -static const complex_t qmf32_pre_twiddle[] = -{ - { FRAC_CONST(0.999924701839145), FRAC_CONST(-0.012271538285720) }, - { FRAC_CONST(0.999322384588350), FRAC_CONST(-0.036807222941359) }, - { FRAC_CONST(0.998118112900149), FRAC_CONST(-0.061320736302209) }, - { FRAC_CONST(0.996312612182778), FRAC_CONST(-0.085797312344440) }, - { FRAC_CONST(0.993906970002356), FRAC_CONST(-0.110222207293883) }, - { FRAC_CONST(0.990902635427780), FRAC_CONST(-0.134580708507126) }, - { FRAC_CONST(0.987301418157858), FRAC_CONST(-0.158858143333861) }, - { FRAC_CONST(0.983105487431216), FRAC_CONST(-0.183039887955141) }, - { FRAC_CONST(0.978317370719628), FRAC_CONST(-0.207111376192219) }, - { FRAC_CONST(0.972939952205560), FRAC_CONST(-0.231058108280671) }, - { FRAC_CONST(0.966976471044852), FRAC_CONST(-0.254865659604515) }, - { FRAC_CONST(0.960430519415566), FRAC_CONST(-0.278519689385053) }, - { FRAC_CONST(0.953306040354194), FRAC_CONST(-0.302005949319228) }, - { FRAC_CONST(0.945607325380521), FRAC_CONST(-0.325310292162263) }, - { FRAC_CONST(0.937339011912575), FRAC_CONST(-0.348418680249435) }, - { FRAC_CONST(0.928506080473216), FRAC_CONST(-0.371317193951838) }, - { FRAC_CONST(0.919113851690058), FRAC_CONST(-0.393992040061048) }, - { FRAC_CONST(0.909167983090522), FRAC_CONST(-0.416429560097637) }, - { FRAC_CONST(0.898674465693954), FRAC_CONST(-0.438616238538528) }, - { FRAC_CONST(0.887639620402854), FRAC_CONST(-0.460538710958240) }, - { FRAC_CONST(0.876070094195407), FRAC_CONST(-0.482183772079123) }, - { FRAC_CONST(0.863972856121587), FRAC_CONST(-0.503538383725718) }, - { FRAC_CONST(0.851355193105265), FRAC_CONST(-0.524589682678469) }, - { FRAC_CONST(0.838224705554838), FRAC_CONST(-0.545324988422046) }, - { FRAC_CONST(0.824589302785025), FRAC_CONST(-0.565731810783613) }, - { FRAC_CONST(0.810457198252595), FRAC_CONST(-0.585797857456439) }, - { FRAC_CONST(0.795836904608884), FRAC_CONST(-0.605511041404326) }, - { FRAC_CONST(0.780737228572094), FRAC_CONST(-0.624859488142386) }, - { FRAC_CONST(0.765167265622459), FRAC_CONST(-0.643831542889791) }, - { FRAC_CONST(0.749136394523459), FRAC_CONST(-0.662415777590172) }, - { FRAC_CONST(0.732654271672413), FRAC_CONST(-0.680600997795453) }, - { FRAC_CONST(0.715730825283819), FRAC_CONST(-0.698376249408973) } -}; - -qmfs_info *qmfs_init(uint8_t channels) -{ - qmfs_info *qmfs = (qmfs_info*)faad_malloc(sizeof(qmfs_info)); - - /* v is a double ringbuffer */ - qmfs->v = (real_t*)faad_malloc(2 * channels * 20 * sizeof(real_t)); - memset(qmfs->v, 0, 2 * channels * 20 * sizeof(real_t)); - - qmfs->v_index = 0; - - qmfs->channels = channels; - - return qmfs; -} - -void qmfs_end(qmfs_info *qmfs) -{ - if (qmfs) - { - if (qmfs->v) faad_free(qmfs->v); - faad_free(qmfs); - } -} - -#ifdef SBR_LOW_POWER - -void sbr_qmf_synthesis_32(sbr_info *sbr, qmfs_info *qmfs, qmf_t X[MAX_NTSRHFG][64], - real_t *output) -{ - ALIGN real_t x[16]; - ALIGN real_t y[16]; - int32_t n, k, out = 0; - uint8_t l; - - /* qmf subsample l */ - for (l = 0; l < sbr->numTimeSlotsRate; l++) - { - /* shift buffers */ - /* we are not shifting v, it is a double ringbuffer */ - //memmove(qmfs->v + 64, qmfs->v, (640-64)*sizeof(real_t)); - - /* calculate 64 samples */ - for (k = 0; k < 16; k++) - { -#ifdef FIXED_POINT - y[k] = (QMF_RE(X[l][k]) - QMF_RE(X[l][31 - k])); - x[k] = (QMF_RE(X[l][k]) + QMF_RE(X[l][31 - k])); -#else - y[k] = (QMF_RE(X[l][k]) - QMF_RE(X[l][31 - k])) / 32.0; - x[k] = (QMF_RE(X[l][k]) + QMF_RE(X[l][31 - k])) / 32.0; -#endif - } - - /* even n samples */ - DCT2_16_unscaled(x, x); - /* odd n samples */ - DCT4_16(y, y); - - for (n = 8; n < 24; n++) - { - qmfs->v[qmfs->v_index + n*2] = qmfs->v[qmfs->v_index + 640 + n*2] = x[n-8]; - qmfs->v[qmfs->v_index + n*2+1] = qmfs->v[qmfs->v_index + 640 + n*2+1] = y[n-8]; - } - for (n = 0; n < 16; n++) - { - qmfs->v[qmfs->v_index + n] = qmfs->v[qmfs->v_index + 640 + n] = qmfs->v[qmfs->v_index + 32-n]; - } - qmfs->v[qmfs->v_index + 48] = qmfs->v[qmfs->v_index + 640 + 48] = 0; - for (n = 1; n < 16; n++) - { - qmfs->v[qmfs->v_index + 48+n] = qmfs->v[qmfs->v_index + 640 + 48+n] = -qmfs->v[qmfs->v_index + 48-n]; - } - - /* calculate 32 output samples and window */ - for (k = 0; k < 32; k++) - { - output[out++] = MUL_F(qmfs->v[qmfs->v_index + k], qmf_c[2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 96 + k], qmf_c[64 + 2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 128 + k], qmf_c[128 + 2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 224 + k], qmf_c[192 + 2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 256 + k], qmf_c[256 + 2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 352 + k], qmf_c[320 + 2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 384 + k], qmf_c[384 + 2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 480 + k], qmf_c[448 + 2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 512 + k], qmf_c[512 + 2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 608 + k], qmf_c[576 + 2*k]); - } - - /* update the ringbuffer index */ - qmfs->v_index -= 64; - if (qmfs->v_index < 0) - qmfs->v_index = (640-64); - } -} - -void sbr_qmf_synthesis_64(sbr_info *sbr, qmfs_info *qmfs, qmf_t X[MAX_NTSRHFG][64], - real_t *output) -{ - ALIGN real_t x[64]; - ALIGN real_t y[64]; - int32_t n, k, out = 0; - uint8_t l; - - - /* qmf subsample l */ - for (l = 0; l < sbr->numTimeSlotsRate; l++) - { - /* shift buffers */ - /* we are not shifting v, it is a double ringbuffer */ - //memmove(qmfs->v + 128, qmfs->v, (1280-128)*sizeof(real_t)); - - /* calculate 128 samples */ - for (k = 0; k < 32; k++) - { -#ifdef FIXED_POINT - y[k] = (QMF_RE(X[l][k]) - QMF_RE(X[l][63 - k])); - x[k] = (QMF_RE(X[l][k]) + QMF_RE(X[l][63 - k])); -#else - y[k] = (QMF_RE(X[l][k]) - QMF_RE(X[l][63 - k])) / 32.0; - x[k] = (QMF_RE(X[l][k]) + QMF_RE(X[l][63 - k])) / 32.0; -#endif - } - - /* even n samples */ - DCT2_32_unscaled(x, x); - /* odd n samples */ - DCT4_32(y, y); - - for (n = 16; n < 48; n++) - { - qmfs->v[qmfs->v_index + n*2] = qmfs->v[qmfs->v_index + 1280 + n*2] = x[n-16]; - qmfs->v[qmfs->v_index + n*2+1] = qmfs->v[qmfs->v_index + 1280 + n*2+1] = y[n-16]; - } - for (n = 0; n < 32; n++) - { - qmfs->v[qmfs->v_index + n] = qmfs->v[qmfs->v_index + 1280 + n] = qmfs->v[qmfs->v_index + 64-n]; - } - qmfs->v[qmfs->v_index + 96] = qmfs->v[qmfs->v_index + 1280 + 96] = 0; - for (n = 1; n < 32; n++) - { - qmfs->v[qmfs->v_index + 96+n] = qmfs->v[qmfs->v_index + 1280 + 96+n] = -qmfs->v[qmfs->v_index + 96-n]; - } - - /* calculate 64 output samples and window */ - for (k = 0; k < 64; k++) - { - output[out++] = MUL_F(qmfs->v[qmfs->v_index + k], qmf_c[k]) + - MUL_F(qmfs->v[qmfs->v_index + 192 + k], qmf_c[64 + k]) + - MUL_F(qmfs->v[qmfs->v_index + 256 + k], qmf_c[128 + k]) + - MUL_F(qmfs->v[qmfs->v_index + 256 + 192 + k], qmf_c[128 + 64 + k]) + - MUL_F(qmfs->v[qmfs->v_index + 512 + k], qmf_c[256 + k]) + - MUL_F(qmfs->v[qmfs->v_index + 512 + 192 + k], qmf_c[256 + 64 + k]) + - MUL_F(qmfs->v[qmfs->v_index + 768 + k], qmf_c[384 + k]) + - MUL_F(qmfs->v[qmfs->v_index + 768 + 192 + k], qmf_c[384 + 64 + k]) + - MUL_F(qmfs->v[qmfs->v_index + 1024 + k], qmf_c[512 + k]) + - MUL_F(qmfs->v[qmfs->v_index + 1024 + 192 + k], qmf_c[512 + 64 + k]); - } - - /* update the ringbuffer index */ - qmfs->v_index -= 128; - if (qmfs->v_index < 0) - qmfs->v_index = (1280-128); - } -} -#else -void sbr_qmf_synthesis_32(sbr_info *sbr, qmfs_info *qmfs, qmf_t X[MAX_NTSRHFG][64], - real_t *output) -{ - ALIGN real_t x1[32], x2[32]; -#ifndef FIXED_POINT - real_t scale = 1.f/64.f; -#endif - int32_t n, k, out = 0; - uint8_t l; - - - /* qmf subsample l */ - for (l = 0; l < sbr->numTimeSlotsRate; l++) - { - /* shift buffer v */ - /* buffer is not shifted, we are using a ringbuffer */ - //memmove(qmfs->v + 64, qmfs->v, (640-64)*sizeof(real_t)); - - /* calculate 64 samples */ - /* complex pre-twiddle */ - for (k = 0; k < 32; k++) - { - x1[k] = MUL_F(QMF_RE(X[l][k]), RE(qmf32_pre_twiddle[k])) - MUL_F(QMF_IM(X[l][k]), IM(qmf32_pre_twiddle[k])); - x2[k] = MUL_F(QMF_IM(X[l][k]), RE(qmf32_pre_twiddle[k])) + MUL_F(QMF_RE(X[l][k]), IM(qmf32_pre_twiddle[k])); - -#ifndef FIXED_POINT - x1[k] *= scale; - x2[k] *= scale; -#else - x1[k] >>= 1; - x2[k] >>= 1; -#endif - } - - /* transform */ - DCT4_32(x1, x1); - DST4_32(x2, x2); - - for (n = 0; n < 32; n++) - { - qmfs->v[qmfs->v_index + n] = qmfs->v[qmfs->v_index + 640 + n] = -x1[n] + x2[n]; - qmfs->v[qmfs->v_index + 63 - n] = qmfs->v[qmfs->v_index + 640 + 63 - n] = x1[n] + x2[n]; - } - - /* calculate 32 output samples and window */ - for (k = 0; k < 32; k++) - { - output[out++] = MUL_F(qmfs->v[qmfs->v_index + k], qmf_c[2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 96 + k], qmf_c[64 + 2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 128 + k], qmf_c[128 + 2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 224 + k], qmf_c[192 + 2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 256 + k], qmf_c[256 + 2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 352 + k], qmf_c[320 + 2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 384 + k], qmf_c[384 + 2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 480 + k], qmf_c[448 + 2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 512 + k], qmf_c[512 + 2*k]) + - MUL_F(qmfs->v[qmfs->v_index + 608 + k], qmf_c[576 + 2*k]); - } - - /* update ringbuffer index */ - qmfs->v_index -= 64; - if (qmfs->v_index < 0) - qmfs->v_index = (640 - 64); - } -} - -void sbr_qmf_synthesis_64(sbr_info *sbr, qmfs_info *qmfs, qmf_t X[MAX_NTSRHFG][64], - real_t *output) -{ -// ALIGN real_t x1[64], x2[64]; -#ifndef SBR_LOW_POWER - ALIGN real_t in_real1[32], in_imag1[32], out_real1[32], out_imag1[32]; - ALIGN real_t in_real2[32], in_imag2[32], out_real2[32], out_imag2[32]; -#endif - qmf_t * pX; - real_t * pring_buffer_1, * pring_buffer_3; -// real_t * ptemp_1, * ptemp_2; -#ifdef PREFER_POINTERS - // These pointers are used if target platform has autoinc address generators - real_t * pring_buffer_2, * pring_buffer_4; - real_t * pring_buffer_5, * pring_buffer_6; - real_t * pring_buffer_7, * pring_buffer_8; - real_t * pring_buffer_9, * pring_buffer_10; - const real_t * pqmf_c_1, * pqmf_c_2, * pqmf_c_3, * pqmf_c_4; - const real_t * pqmf_c_5, * pqmf_c_6, * pqmf_c_7, * pqmf_c_8; - const real_t * pqmf_c_9, * pqmf_c_10; -#endif // #ifdef PREFER_POINTERS -#ifndef FIXED_POINT - real_t scale = 1.f/64.f; -#endif - int32_t n, k, out = 0; - uint8_t l; - - - /* qmf subsample l */ - for (l = 0; l < sbr->numTimeSlotsRate; l++) - { - /* shift buffer v */ - /* buffer is not shifted, we use double ringbuffer */ - //memmove(qmfs->v + 128, qmfs->v, (1280-128)*sizeof(real_t)); - - /* calculate 128 samples */ -#ifndef FIXED_POINT - - pX = X[l]; - - in_imag1[31] = scale*QMF_RE(pX[1]); - in_real1[0] = scale*QMF_RE(pX[0]); - in_imag2[31] = scale*QMF_IM(pX[63-1]); - in_real2[0] = scale*QMF_IM(pX[63-0]); - for (k = 1; k < 31; k++) - { - in_imag1[31 - k] = scale*QMF_RE(pX[2*k + 1]); - in_real1[ k] = scale*QMF_RE(pX[2*k ]); - in_imag2[31 - k] = scale*QMF_IM(pX[63 - (2*k + 1)]); - in_real2[ k] = scale*QMF_IM(pX[63 - (2*k )]); - } - in_imag1[0] = scale*QMF_RE(pX[63]); - in_real1[31] = scale*QMF_RE(pX[62]); - in_imag2[0] = scale*QMF_IM(pX[63-63]); - in_real2[31] = scale*QMF_IM(pX[63-62]); - -#else - - pX = X[l]; - - in_imag1[31] = QMF_RE(pX[1]) >> 1; - in_real1[0] = QMF_RE(pX[0]) >> 1; - in_imag2[31] = QMF_IM(pX[62]) >> 1; - in_real2[0] = QMF_IM(pX[63]) >> 1; - for (k = 1; k < 31; k++) - { - in_imag1[31 - k] = QMF_RE(pX[2*k + 1]) >> 1; - in_real1[ k] = QMF_RE(pX[2*k ]) >> 1; - in_imag2[31 - k] = QMF_IM(pX[63 - (2*k + 1)]) >> 1; - in_real2[ k] = QMF_IM(pX[63 - (2*k )]) >> 1; - } - in_imag1[0] = QMF_RE(pX[63]) >> 1; - in_real1[31] = QMF_RE(pX[62]) >> 1; - in_imag2[0] = QMF_IM(pX[0]) >> 1; - in_real2[31] = QMF_IM(pX[1]) >> 1; - -#endif - - - // dct4_kernel is DCT_IV without reordering which is done before and after FFT - dct4_kernel(in_real1, in_imag1, out_real1, out_imag1); - dct4_kernel(in_real2, in_imag2, out_real2, out_imag2); - - - pring_buffer_1 = qmfs->v + qmfs->v_index; - pring_buffer_3 = pring_buffer_1 + 1280; -#ifdef PREFER_POINTERS - pring_buffer_2 = pring_buffer_1 + 127; - pring_buffer_4 = pring_buffer_1 + (1280 + 127); -#endif // #ifdef PREFER_POINTERS -// ptemp_1 = x1; -// ptemp_2 = x2; -#ifdef PREFER_POINTERS - for (n = 0; n < 32; n ++) - { - //real_t x1 = *ptemp_1++; - //real_t x2 = *ptemp_2++; - // pring_buffer_3 and pring_buffer_4 are needed only for double ring buffer - *pring_buffer_1++ = *pring_buffer_3++ = out_real2[n] - out_real1[n]; - *pring_buffer_2-- = *pring_buffer_4-- = out_real2[n] + out_real1[n]; - //x1 = *ptemp_1++; - //x2 = *ptemp_2++; - *pring_buffer_1++ = *pring_buffer_3++ = out_imag2[31-n] + out_imag1[31-n]; - *pring_buffer_2-- = *pring_buffer_4-- = out_imag2[31-n] - out_imag1[31-n]; - } -#else // #ifdef PREFER_POINTERS - - for (n = 0; n < 32; n++) - { - // pring_buffer_3 and pring_buffer_4 are needed only for double ring buffer - pring_buffer_1[2*n] = pring_buffer_3[2*n] = out_real2[n] - out_real1[n]; - pring_buffer_1[127-2*n] = pring_buffer_3[127-2*n] = out_real2[n] + out_real1[n]; - pring_buffer_1[2*n+1] = pring_buffer_3[2*n+1] = out_imag2[31-n] + out_imag1[31-n]; - pring_buffer_1[127-(2*n+1)] = pring_buffer_3[127-(2*n+1)] = out_imag2[31-n] - out_imag1[31-n]; - } - -#endif // #ifdef PREFER_POINTERS - - pring_buffer_1 = qmfs->v + qmfs->v_index; -#ifdef PREFER_POINTERS - pring_buffer_2 = pring_buffer_1 + 192; - pring_buffer_3 = pring_buffer_1 + 256; - pring_buffer_4 = pring_buffer_1 + (256 + 192); - pring_buffer_5 = pring_buffer_1 + 512; - pring_buffer_6 = pring_buffer_1 + (512 + 192); - pring_buffer_7 = pring_buffer_1 + 768; - pring_buffer_8 = pring_buffer_1 + (768 + 192); - pring_buffer_9 = pring_buffer_1 + 1024; - pring_buffer_10 = pring_buffer_1 + (1024 + 192); - pqmf_c_1 = qmf_c; - pqmf_c_2 = qmf_c + 64; - pqmf_c_3 = qmf_c + 128; - pqmf_c_4 = qmf_c + 192; - pqmf_c_5 = qmf_c + 256; - pqmf_c_6 = qmf_c + 320; - pqmf_c_7 = qmf_c + 384; - pqmf_c_8 = qmf_c + 448; - pqmf_c_9 = qmf_c + 512; - pqmf_c_10 = qmf_c + 576; -#endif // #ifdef PREFER_POINTERS - - /* calculate 64 output samples and window */ - for (k = 0; k < 64; k++) - { -#ifdef PREFER_POINTERS - output[out++] = - MUL_F(*pring_buffer_1++, *pqmf_c_1++) + - MUL_F(*pring_buffer_2++, *pqmf_c_2++) + - MUL_F(*pring_buffer_3++, *pqmf_c_3++) + - MUL_F(*pring_buffer_4++, *pqmf_c_4++) + - MUL_F(*pring_buffer_5++, *pqmf_c_5++) + - MUL_F(*pring_buffer_6++, *pqmf_c_6++) + - MUL_F(*pring_buffer_7++, *pqmf_c_7++) + - MUL_F(*pring_buffer_8++, *pqmf_c_8++) + - MUL_F(*pring_buffer_9++, *pqmf_c_9++) + - MUL_F(*pring_buffer_10++, *pqmf_c_10++); -#else // #ifdef PREFER_POINTERS - output[out++] = - MUL_F(pring_buffer_1[k+0], qmf_c[k+0]) + - MUL_F(pring_buffer_1[k+192], qmf_c[k+64]) + - MUL_F(pring_buffer_1[k+256], qmf_c[k+128]) + - MUL_F(pring_buffer_1[k+(256+192)], qmf_c[k+192]) + - MUL_F(pring_buffer_1[k+512], qmf_c[k+256]) + - MUL_F(pring_buffer_1[k+(512+192)], qmf_c[k+320]) + - MUL_F(pring_buffer_1[k+768], qmf_c[k+384]) + - MUL_F(pring_buffer_1[k+(768+192)], qmf_c[k+448]) + - MUL_F(pring_buffer_1[k+1024], qmf_c[k+512]) + - MUL_F(pring_buffer_1[k+(1024+192)], qmf_c[k+576]); -#endif // #ifdef PREFER_POINTERS - } - - /* update ringbuffer index */ - qmfs->v_index -= 128; - if (qmfs->v_index < 0) - qmfs->v_index = (1280 - 128); - } -} -#endif - -#endif -- cgit v1.2.3