From f40bfc9267b13b54e6379dfe7539447662879d24 Mon Sep 17 00:00:00 2001 From: Sean Bartell Date: Sat, 25 Jun 2011 21:32:25 -0400 Subject: Add codecs to librbcodec. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97 Reviewed-on: http://gerrit.rockbox.org/137 Reviewed-by: Nils Wallménius Tested-by: Nils Wallménius --- lib/rbcodec/codecs/libfaad/ps_dec.h | 162 ++++++++++++++++++++++++++++++++++++ 1 file changed, 162 insertions(+) create mode 100644 lib/rbcodec/codecs/libfaad/ps_dec.h (limited to 'lib/rbcodec/codecs/libfaad/ps_dec.h') diff --git a/lib/rbcodec/codecs/libfaad/ps_dec.h b/lib/rbcodec/codecs/libfaad/ps_dec.h new file mode 100644 index 0000000000..14e4bd54e6 --- /dev/null +++ b/lib/rbcodec/codecs/libfaad/ps_dec.h @@ -0,0 +1,162 @@ +/* +** 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. +** +** $Id$ +**/ + +#ifndef __PS_DEC_H__ +#define __PS_DEC_H__ + +#ifdef __cplusplus +extern "C" { +#endif + +#include "bits.h" + +#define EXTENSION_ID_PS 2 + +#define MAX_PS_ENVELOPES 5 +#define NO_ALLPASS_LINKS 3 + +#define MAX_NTSRPS 38 /* max number_time_slots * rate + 6 (delay) */ + +typedef struct +{ + uint8_t frame_len; + uint8_t resolution20[3]; + uint8_t resolution34[5]; + + qmf_t work[32+12]; + qmf_t buffer[5][32]; + qmf_t temp[32][12]; +} hyb_info; + +typedef struct +{ + /* bitstream parameters */ + uint8_t enable_iid; + uint8_t enable_icc; + uint8_t enable_ext; + + uint8_t iid_mode; + uint8_t icc_mode; + uint8_t nr_iid_par; + uint8_t nr_ipdopd_par; + uint8_t nr_icc_par; + + uint8_t frame_class; + uint8_t num_env; + + uint8_t border_position[MAX_PS_ENVELOPES+1]; + + uint8_t iid_dt[MAX_PS_ENVELOPES]; + uint8_t icc_dt[MAX_PS_ENVELOPES]; + + uint8_t enable_ipdopd; + uint8_t ipd_mode; + uint8_t ipd_dt[MAX_PS_ENVELOPES]; + uint8_t opd_dt[MAX_PS_ENVELOPES]; + + /* indices */ + int8_t iid_index_prev[34]; + int8_t icc_index_prev[34]; + int8_t ipd_index_prev[17]; + int8_t opd_index_prev[17]; + int8_t iid_index[MAX_PS_ENVELOPES][34]; + int8_t icc_index[MAX_PS_ENVELOPES][34]; + int8_t ipd_index[MAX_PS_ENVELOPES][17]; + int8_t opd_index[MAX_PS_ENVELOPES][17]; + + int8_t ipd_index_1[17]; + int8_t opd_index_1[17]; + int8_t ipd_index_2[17]; + int8_t opd_index_2[17]; + + /* ps data was correctly read */ + uint8_t ps_data_available; + + /* a header has been read */ + uint8_t header_read; + + /* hybrid filterbank parameters */ + hyb_info hyb; + uint8_t use34hybrid_bands; + + /**/ + uint8_t num_groups; + uint8_t num_hybrid_groups; + uint8_t nr_par_bands; + uint8_t nr_allpass_bands; + uint8_t decay_cutoff; + + uint8_t *group_border; + uint16_t *map_group2bk; + + /* filter delay handling */ + uint8_t saved_delay; + uint8_t delay_buf_index_ser[NO_ALLPASS_LINKS]; + uint8_t num_sample_delay_ser[NO_ALLPASS_LINKS]; + uint8_t delay_D[64]; + uint8_t delay_buf_index_delay[64]; + + complex_t delay_Qmf[14][64]; /* 14 samples delay max, 64 QMF channels */ + complex_t delay_SubQmf[2][32]; /* 2 samples delay max (SubQmf is always allpass filtered) */ + complex_t delay_Qmf_ser[NO_ALLPASS_LINKS][5][64]; /* 5 samples delay max (table 8.34), 64 QMF channels */ + complex_t delay_SubQmf_ser[NO_ALLPASS_LINKS][5][32]; /* 5 samples delay max (table 8.34) */ + + /* transients */ + real_t alpha_decay; + real_t alpha_smooth; + + real_t P_PeakDecayNrg[34]; + real_t P_prev[34]; + real_t P_SmoothPeakDecayDiffNrg_prev[34]; + + /* mixing and phase */ + complex_t h11_prev[50]; + complex_t h12_prev[50]; + complex_t h21_prev[50]; + complex_t h22_prev[50]; + uint8_t phase_hist; + complex_t ipd_prev[20][2]; + complex_t opd_prev[20][2]; + +} ps_info; + +/* ps_syntax.c */ +uint16_t ps_data(ps_info *ps, bitfile *ld, uint8_t *header); + +/* ps_dec.c */ +void ps_init(ps_info *ps); + +uint8_t ps_decode(ps_info *ps, + qmf_t X_left[MAX_NTSRPS][64], + qmf_t X_right[MAX_NTSRPS][64]); + + +#ifdef __cplusplus +} +#endif +#endif + -- cgit v1.2.3