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/ic_predict.c | 271 ----------------------------------------- 1 file changed, 271 deletions(-) delete mode 100644 faad2/src/libfaad/ic_predict.c (limited to 'faad2/src/libfaad/ic_predict.c') diff --git a/faad2/src/libfaad/ic_predict.c b/faad2/src/libfaad/ic_predict.c deleted file mode 100644 index f9e51bd..0000000 --- a/faad2/src/libfaad/ic_predict.c +++ /dev/null @@ -1,271 +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: ic_predict.c,v 1.28 2007/11/01 12:33:31 menno Exp $ -**/ - -#include "common.h" -#include "structs.h" - -#ifdef MAIN_DEC - -#include "syntax.h" -#include "ic_predict.h" -#include "pns.h" - - -static void flt_round(float32_t *pf) -{ - int32_t flg; - uint32_t tmp, tmp1, tmp2; - - tmp = *(uint32_t*)pf; - flg = tmp & (uint32_t)0x00008000; - tmp &= (uint32_t)0xffff0000; - tmp1 = tmp; - /* round 1/2 lsb toward infinity */ - if (flg) - { - tmp &= (uint32_t)0xff800000; /* extract exponent and sign */ - tmp |= (uint32_t)0x00010000; /* insert 1 lsb */ - tmp2 = tmp; /* add 1 lsb and elided one */ - tmp &= (uint32_t)0xff800000; /* extract exponent and sign */ - - *pf = *(float32_t*)&tmp1 + *(float32_t*)&tmp2 - *(float32_t*)&tmp; - } else { - *pf = *(float32_t*)&tmp; - } -} - -static int16_t quant_pred(float32_t x) -{ - int16_t q; - uint32_t *tmp = (uint32_t*)&x; - - q = (int16_t)(*tmp>>16); - - return q; -} - -static float32_t inv_quant_pred(int16_t q) -{ - float32_t x; - uint32_t *tmp = (uint32_t*)&x; - *tmp = ((uint32_t)q)<<16; - - return x; -} - -static void ic_predict(pred_state *state, real_t input, real_t *output, uint8_t pred) -{ - uint16_t tmp; - int16_t i, j; - real_t dr1; - float32_t predictedvalue; - real_t e0, e1; - real_t k1, k2; - - real_t r[2]; - real_t COR[2]; - real_t VAR[2]; - - r[0] = inv_quant_pred(state->r[0]); - r[1] = inv_quant_pred(state->r[1]); - COR[0] = inv_quant_pred(state->COR[0]); - COR[1] = inv_quant_pred(state->COR[1]); - VAR[0] = inv_quant_pred(state->VAR[0]); - VAR[1] = inv_quant_pred(state->VAR[1]); - - -#if 1 - tmp = state->VAR[0]; - j = (tmp >> 7); - i = tmp & 0x7f; - if (j >= 128) - { - j -= 128; - k1 = COR[0] * exp_table[j] * mnt_table[i]; - } else { - k1 = REAL_CONST(0); - } -#else - - { -#define B 0.953125 - real_t c = COR[0]; - real_t v = VAR[0]; - float32_t tmp; - if (c == 0 || v <= 1) - { - k1 = 0; - } else { - tmp = B / v; - flt_round(&tmp); - k1 = c * tmp; - } - } -#endif - - if (pred) - { -#if 1 - tmp = state->VAR[1]; - j = (tmp >> 7); - i = tmp & 0x7f; - if (j >= 128) - { - j -= 128; - k2 = COR[1] * exp_table[j] * mnt_table[i]; - } else { - k2 = REAL_CONST(0); - } -#else - -#define B 0.953125 - real_t c = COR[1]; - real_t v = VAR[1]; - float32_t tmp; - if (c == 0 || v <= 1) - { - k2 = 0; - } else { - tmp = B / v; - flt_round(&tmp); - k2 = c * tmp; - } -#endif - - predictedvalue = k1*r[0] + k2*r[1]; - flt_round(&predictedvalue); - *output = input + predictedvalue; - } - - /* calculate new state data */ - e0 = *output; - e1 = e0 - k1*r[0]; - dr1 = k1*e0; - - VAR[0] = ALPHA*VAR[0] + 0.5f * (r[0]*r[0] + e0*e0); - COR[0] = ALPHA*COR[0] + r[0]*e0; - VAR[1] = ALPHA*VAR[1] + 0.5f * (r[1]*r[1] + e1*e1); - COR[1] = ALPHA*COR[1] + r[1]*e1; - - r[1] = A * (r[0]-dr1); - r[0] = A * e0; - - state->r[0] = quant_pred(r[0]); - state->r[1] = quant_pred(r[1]); - state->COR[0] = quant_pred(COR[0]); - state->COR[1] = quant_pred(COR[1]); - state->VAR[0] = quant_pred(VAR[0]); - state->VAR[1] = quant_pred(VAR[1]); -} - -static void reset_pred_state(pred_state *state) -{ - state->r[0] = 0; - state->r[1] = 0; - state->COR[0] = 0; - state->COR[1] = 0; - state->VAR[0] = 0x3F80; - state->VAR[1] = 0x3F80; -} - -void pns_reset_pred_state(ic_stream *ics, pred_state *state) -{ - uint8_t sfb, g, b; - uint16_t i, offs, offs2; - - /* prediction only for long blocks */ - if (ics->window_sequence == EIGHT_SHORT_SEQUENCE) - return; - - for (g = 0; g < ics->num_window_groups; g++) - { - for (b = 0; b < ics->window_group_length[g]; b++) - { - for (sfb = 0; sfb < ics->max_sfb; sfb++) - { - if (is_noise(ics, g, sfb)) - { - offs = ics->swb_offset[sfb]; - offs2 = min(ics->swb_offset[sfb+1], ics->swb_offset_max); - - for (i = offs; i < offs2; i++) - reset_pred_state(&state[i]); - } - } - } - } -} - -void reset_all_predictors(pred_state *state, uint16_t frame_len) -{ - uint16_t i; - - for (i = 0; i < frame_len; i++) - reset_pred_state(&state[i]); -} - -/* intra channel prediction */ -void ic_prediction(ic_stream *ics, real_t *spec, pred_state *state, - uint16_t frame_len, uint8_t sf_index) -{ - uint8_t sfb; - uint16_t bin; - - if (ics->window_sequence == EIGHT_SHORT_SEQUENCE) - { - reset_all_predictors(state, frame_len); - } else { - for (sfb = 0; sfb < max_pred_sfb(sf_index); sfb++) - { - uint16_t low = ics->swb_offset[sfb]; - uint16_t high = min(ics->swb_offset[sfb+1], ics->swb_offset_max); - - for (bin = low; bin < high; bin++) - { - ic_predict(&state[bin], spec[bin], &spec[bin], - (ics->predictor_data_present && ics->pred.prediction_used[sfb])); - } - } - - if (ics->predictor_data_present) - { - if (ics->pred.predictor_reset) - { - for (bin = ics->pred.predictor_reset_group_number - 1; - bin < frame_len; bin += 30) - { - reset_pred_state(&state[bin]); - } - } - } - } -} - -#endif -- cgit v1.2.3