summaryrefslogtreecommitdiff
path: root/src/libfaad/ic_predict.c
diff options
context:
space:
mode:
authorDiego 'Flameeyes' Pettenò <flameeyes@gmail.com>2007-05-31 20:29:27 +0200
committerDiego 'Flameeyes' Pettenò <flameeyes@gmail.com>2007-05-31 20:29:27 +0200
commit37d4ab77290e4b906df51a7012576e6aec0fc605 (patch)
tree22603e7f58b7b98c64439035cfce98e4e70939b5 /src/libfaad/ic_predict.c
parent0a2bd906547bf468205defb30c317fca3dac397b (diff)
downloadxine-lib-37d4ab77290e4b906df51a7012576e6aec0fc605.tar.gz
xine-lib-37d4ab77290e4b906df51a7012576e6aec0fc605.tar.bz2
Move libfaad in contrib/ and contextually move the plugin in src/libxineadec/.
--HG-- rename : src/libfaad/Makefile.am => contrib/libfaad/Makefile.am rename : src/libfaad/analysis.h => contrib/libfaad/analysis.h rename : src/libfaad/bits.c => contrib/libfaad/bits.c rename : src/libfaad/bits.h => contrib/libfaad/bits.h rename : src/libfaad/cfft.c => contrib/libfaad/cfft.c rename : src/libfaad/cfft.h => contrib/libfaad/cfft.h rename : src/libfaad/cfft_tab.h => contrib/libfaad/cfft_tab.h rename : src/libfaad/codebook/Makefile.am => contrib/libfaad/codebook/Makefile.am rename : src/libfaad/codebook/hcb.h => contrib/libfaad/codebook/hcb.h rename : src/libfaad/codebook/hcb_1.h => contrib/libfaad/codebook/hcb_1.h rename : src/libfaad/codebook/hcb_10.h => contrib/libfaad/codebook/hcb_10.h rename : src/libfaad/codebook/hcb_11.h => contrib/libfaad/codebook/hcb_11.h rename : src/libfaad/codebook/hcb_2.h => contrib/libfaad/codebook/hcb_2.h rename : src/libfaad/codebook/hcb_3.h => contrib/libfaad/codebook/hcb_3.h rename : src/libfaad/codebook/hcb_4.h => contrib/libfaad/codebook/hcb_4.h rename : src/libfaad/codebook/hcb_5.h => contrib/libfaad/codebook/hcb_5.h rename : src/libfaad/codebook/hcb_6.h => contrib/libfaad/codebook/hcb_6.h rename : src/libfaad/codebook/hcb_7.h => contrib/libfaad/codebook/hcb_7.h rename : src/libfaad/codebook/hcb_8.h => contrib/libfaad/codebook/hcb_8.h rename : src/libfaad/codebook/hcb_9.h => contrib/libfaad/codebook/hcb_9.h rename : src/libfaad/codebook/hcb_sf.h => contrib/libfaad/codebook/hcb_sf.h rename : src/libfaad/common.c => contrib/libfaad/common.c rename : src/libfaad/common.h => contrib/libfaad/common.h rename : src/libfaad/decoder.c => contrib/libfaad/decoder.c rename : src/libfaad/decoder.h => contrib/libfaad/decoder.h rename : src/libfaad/diff_to_faad2_cvs.patch => contrib/libfaad/diff_to_faad2_cvs.patch rename : src/libfaad/drc.c => contrib/libfaad/drc.c rename : src/libfaad/drc.h => contrib/libfaad/drc.h rename : src/libfaad/drm_dec.c => contrib/libfaad/drm_dec.c rename : src/libfaad/drm_dec.h => contrib/libfaad/drm_dec.h rename : src/libfaad/error.c => contrib/libfaad/error.c rename : src/libfaad/error.h => contrib/libfaad/error.h rename : src/libfaad/faad.h => contrib/libfaad/faad.h rename : src/libfaad/filtbank.c => contrib/libfaad/filtbank.c rename : src/libfaad/filtbank.h => contrib/libfaad/filtbank.h rename : src/libfaad/fixed.h => contrib/libfaad/fixed.h rename : src/libfaad/hcr.c => contrib/libfaad/hcr.c rename : src/libfaad/huffman.c => contrib/libfaad/huffman.c rename : src/libfaad/huffman.h => contrib/libfaad/huffman.h rename : src/libfaad/ic_predict.c => contrib/libfaad/ic_predict.c rename : src/libfaad/ic_predict.h => contrib/libfaad/ic_predict.h rename : src/libfaad/iq_table.h => contrib/libfaad/iq_table.h rename : src/libfaad/is.c => contrib/libfaad/is.c rename : src/libfaad/is.h => contrib/libfaad/is.h rename : src/libfaad/kbd_win.h => contrib/libfaad/kbd_win.h rename : src/libfaad/lt_predict.c => contrib/libfaad/lt_predict.c rename : src/libfaad/lt_predict.h => contrib/libfaad/lt_predict.h rename : src/libfaad/mdct.c => contrib/libfaad/mdct.c rename : src/libfaad/mdct.h => contrib/libfaad/mdct.h rename : src/libfaad/mdct_tab.h => contrib/libfaad/mdct_tab.h rename : src/libfaad/mp4.c => contrib/libfaad/mp4.c rename : src/libfaad/mp4.h => contrib/libfaad/mp4.h rename : src/libfaad/ms.c => contrib/libfaad/ms.c rename : src/libfaad/ms.h => contrib/libfaad/ms.h rename : src/libfaad/output.c => contrib/libfaad/output.c rename : src/libfaad/output.h => contrib/libfaad/output.h rename : src/libfaad/pns.c => contrib/libfaad/pns.c rename : src/libfaad/pns.h => contrib/libfaad/pns.h rename : src/libfaad/ps_dec.c => contrib/libfaad/ps_dec.c rename : src/libfaad/ps_dec.h => contrib/libfaad/ps_dec.h rename : src/libfaad/ps_syntax.c => contrib/libfaad/ps_syntax.c rename : src/libfaad/ps_tables.h => contrib/libfaad/ps_tables.h rename : src/libfaad/pulse.c => contrib/libfaad/pulse.c rename : src/libfaad/pulse.h => contrib/libfaad/pulse.h rename : src/libfaad/rvlc.c => contrib/libfaad/rvlc.c rename : src/libfaad/rvlc.h => contrib/libfaad/rvlc.h rename : src/libfaad/sbr_dct.c => contrib/libfaad/sbr_dct.c rename : src/libfaad/sbr_dct.h => contrib/libfaad/sbr_dct.h rename : src/libfaad/sbr_dec.c => contrib/libfaad/sbr_dec.c rename : src/libfaad/sbr_dec.h => contrib/libfaad/sbr_dec.h rename : src/libfaad/sbr_e_nf.c => contrib/libfaad/sbr_e_nf.c rename : src/libfaad/sbr_e_nf.h => contrib/libfaad/sbr_e_nf.h rename : src/libfaad/sbr_fbt.c => contrib/libfaad/sbr_fbt.c rename : src/libfaad/sbr_fbt.h => contrib/libfaad/sbr_fbt.h rename : src/libfaad/sbr_hfadj.c => contrib/libfaad/sbr_hfadj.c rename : src/libfaad/sbr_hfadj.h => contrib/libfaad/sbr_hfadj.h rename : src/libfaad/sbr_hfgen.c => contrib/libfaad/sbr_hfgen.c rename : src/libfaad/sbr_hfgen.h => contrib/libfaad/sbr_hfgen.h rename : src/libfaad/sbr_huff.c => contrib/libfaad/sbr_huff.c rename : src/libfaad/sbr_huff.h => contrib/libfaad/sbr_huff.h rename : src/libfaad/sbr_noise.h => contrib/libfaad/sbr_noise.h rename : src/libfaad/sbr_qmf.c => contrib/libfaad/sbr_qmf.c rename : src/libfaad/sbr_qmf.h => contrib/libfaad/sbr_qmf.h rename : src/libfaad/sbr_qmf_c.h => contrib/libfaad/sbr_qmf_c.h rename : src/libfaad/sbr_syntax.c => contrib/libfaad/sbr_syntax.c rename : src/libfaad/sbr_syntax.h => contrib/libfaad/sbr_syntax.h rename : src/libfaad/sbr_tf_grid.c => contrib/libfaad/sbr_tf_grid.c rename : src/libfaad/sbr_tf_grid.h => contrib/libfaad/sbr_tf_grid.h rename : src/libfaad/sine_win.h => contrib/libfaad/sine_win.h rename : src/libfaad/specrec.c => contrib/libfaad/specrec.c rename : src/libfaad/specrec.h => contrib/libfaad/specrec.h rename : src/libfaad/ssr.c => contrib/libfaad/ssr.c rename : src/libfaad/ssr.h => contrib/libfaad/ssr.h rename : src/libfaad/ssr_fb.c => contrib/libfaad/ssr_fb.c rename : src/libfaad/ssr_fb.h => contrib/libfaad/ssr_fb.h rename : src/libfaad/ssr_ipqf.c => contrib/libfaad/ssr_ipqf.c rename : src/libfaad/ssr_ipqf.h => contrib/libfaad/ssr_ipqf.h rename : src/libfaad/ssr_win.h => contrib/libfaad/ssr_win.h rename : src/libfaad/structs.h => contrib/libfaad/structs.h rename : src/libfaad/syntax.c => contrib/libfaad/syntax.c rename : src/libfaad/syntax.h => contrib/libfaad/syntax.h rename : src/libfaad/tns.c => contrib/libfaad/tns.c rename : src/libfaad/tns.h => contrib/libfaad/tns.h rename : src/libfaad/xine_faad_decoder.c => src/libxineadec/xine_faad_decoder.c
Diffstat (limited to 'src/libfaad/ic_predict.c')
-rw-r--r--src/libfaad/ic_predict.c267
1 files changed, 0 insertions, 267 deletions
diff --git a/src/libfaad/ic_predict.c b/src/libfaad/ic_predict.c
deleted file mode 100644
index 82753a9f2..000000000
--- a/src/libfaad/ic_predict.c
+++ /dev/null
@@ -1,267 +0,0 @@
-/*
-** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
-** Copyright (C) 2003-2004 M. Bakker, Ahead Software 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.
-**
-** Commercial non-GPL licensing of this software is possible.
-** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
-**
-** $Id: ic_predict.c,v 1.7 2005/10/29 23:57:06 tmmm 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, 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];
- real_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];
- real_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 = ics->swb_offset[sfb+1];
-
- 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 = ics->swb_offset[sfb+1];
-
- 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