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author | Diego 'Flameeyes' Pettenò <flameeyes@gmail.com> | 2007-05-31 20:29:27 +0200 |
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committer | Diego 'Flameeyes' Pettenò <flameeyes@gmail.com> | 2007-05-31 20:29:27 +0200 |
commit | 37d4ab77290e4b906df51a7012576e6aec0fc605 (patch) | |
tree | 22603e7f58b7b98c64439035cfce98e4e70939b5 /src/libfaad/ic_predict.c | |
parent | 0a2bd906547bf468205defb30c317fca3dac397b (diff) | |
download | xine-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.c | 267 |
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 |