cache, stream: avoid extra memcpy when using cache
[mplayer/glamo.git] / libfaad2 / sbr_dec.h
blob0d76555b3f98a4d812dc87152dd8981af70a147d
1 /*
2 ** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
3 ** Copyright (C) 2003-2004 M. Bakker, Ahead Software AG, http://www.nero.com
4 **
5 ** This program is free software; you can redistribute it and/or modify
6 ** it under the terms of the GNU General Public License as published by
7 ** the Free Software Foundation; either version 2 of the License, or
8 ** (at your option) any later version.
9 **
10 ** This program is distributed in the hope that it will be useful,
11 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
12 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 ** GNU General Public License for more details.
15 ** You should have received a copy of the GNU General Public License
16 ** along with this program; if not, write to the Free Software
17 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 ** Any non-GPL usage of this software or parts of this software is strictly
20 ** forbidden.
22 ** Commercial non-GPL licensing of this software is possible.
23 ** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
25 ** $Id: sbr_dec.h,v 1.35 2004/09/04 14:56:28 menno Exp $
26 **/
28 #ifndef __SBR_DEC_H__
29 #define __SBR_DEC_H__
31 #ifdef __cplusplus
32 extern "C" {
33 #endif
35 #ifdef PS_DEC
36 #include "ps_dec.h"
37 #endif
38 #ifdef DRM_PS
39 #include "drm_dec.h"
40 #endif
42 /* MAX_NTSRHFG: maximum of number_time_slots * rate + HFGen. 16*2+8 */
43 #define MAX_NTSRHFG 40
44 #define MAX_NTSR 32 /* max number_time_slots * rate, ok for DRM and not DRM mode */
46 /* MAX_M: maximum value for M */
47 #define MAX_M 49
48 /* MAX_L_E: maximum value for L_E */
49 #define MAX_L_E 5
51 typedef struct {
52 real_t *x;
53 int16_t x_index;
54 uint8_t channels;
55 } qmfa_info;
57 typedef struct {
58 real_t *v;
59 int16_t v_index;
60 uint8_t channels;
61 } qmfs_info;
63 typedef struct
65 uint32_t sample_rate;
66 uint32_t maxAACLine;
68 uint8_t rate;
69 uint8_t just_seeked;
70 uint8_t ret;
72 uint8_t amp_res[2];
74 uint8_t k0;
75 uint8_t kx;
76 uint8_t M;
77 uint8_t N_master;
78 uint8_t N_high;
79 uint8_t N_low;
80 uint8_t N_Q;
81 uint8_t N_L[4];
82 uint8_t n[2];
84 uint8_t f_master[64];
85 uint8_t f_table_res[2][64];
86 uint8_t f_table_noise[64];
87 uint8_t f_table_lim[4][64];
88 #ifdef SBR_LOW_POWER
89 uint8_t f_group[5][64];
90 uint8_t N_G[5];
91 #endif
93 uint8_t table_map_k_to_g[64];
95 uint8_t abs_bord_lead[2];
96 uint8_t abs_bord_trail[2];
97 uint8_t n_rel_lead[2];
98 uint8_t n_rel_trail[2];
100 uint8_t L_E[2];
101 uint8_t L_E_prev[2];
102 uint8_t L_Q[2];
104 uint8_t t_E[2][MAX_L_E+1];
105 uint8_t t_Q[2][3];
106 uint8_t f[2][MAX_L_E+1];
107 uint8_t f_prev[2];
109 real_t *G_temp_prev[2][5];
110 real_t *Q_temp_prev[2][5];
111 int8_t GQ_ringbuf_index[2];
113 int16_t E[2][64][MAX_L_E];
114 int16_t E_prev[2][64];
115 #ifndef FIXED_POINT
116 real_t E_orig[2][64][MAX_L_E];
117 #endif
118 real_t E_curr[2][64][MAX_L_E];
119 int32_t Q[2][64][2];
120 #ifndef FIXED_POINT
121 real_t Q_div[2][64][2];
122 real_t Q_div2[2][64][2];
123 #endif
124 int32_t Q_prev[2][64];
126 int8_t l_A[2];
127 int8_t l_A_prev[2];
129 uint8_t bs_invf_mode[2][MAX_L_E];
130 uint8_t bs_invf_mode_prev[2][MAX_L_E];
131 real_t bwArray[2][64];
132 real_t bwArray_prev[2][64];
134 uint8_t noPatches;
135 uint8_t patchNoSubbands[64];
136 uint8_t patchStartSubband[64];
138 uint8_t bs_add_harmonic[2][64];
139 uint8_t bs_add_harmonic_prev[2][64];
141 uint16_t index_noise_prev[2];
142 uint8_t psi_is_prev[2];
144 uint8_t bs_start_freq_prev;
145 uint8_t bs_stop_freq_prev;
146 uint8_t bs_xover_band_prev;
147 uint8_t bs_freq_scale_prev;
148 uint8_t bs_alter_scale_prev;
149 uint8_t bs_noise_bands_prev;
151 int8_t prevEnvIsShort[2];
153 int8_t kx_prev;
154 uint8_t bsco;
155 uint8_t bsco_prev;
156 uint8_t M_prev;
157 uint16_t frame_len;
159 uint8_t Reset;
160 uint32_t frame;
161 uint32_t header_count;
163 uint8_t id_aac;
164 qmfa_info *qmfa[2];
165 qmfs_info *qmfs[2];
167 qmf_t Xsbr[2][MAX_NTSRHFG][64];
169 #ifdef DRM
170 uint8_t Is_DRM_SBR;
171 #ifdef DRM_PS
172 drm_ps_info *drm_ps;
173 #endif
174 #endif
176 uint8_t numTimeSlotsRate;
177 uint8_t numTimeSlots;
178 uint8_t tHFGen;
179 uint8_t tHFAdj;
181 #ifdef PS_DEC
182 ps_info *ps;
183 #endif
184 #if (defined(PS_DEC) || defined(DRM_PS))
185 uint8_t ps_used;
186 #endif
188 /* to get it compiling */
189 /* we'll see during the coding of all the tools, whether
190 these are all used or not.
192 uint8_t bs_header_flag;
193 uint8_t bs_crc_flag;
194 uint16_t bs_sbr_crc_bits;
195 uint8_t bs_protocol_version;
196 uint8_t bs_amp_res;
197 uint8_t bs_start_freq;
198 uint8_t bs_stop_freq;
199 uint8_t bs_xover_band;
200 uint8_t bs_freq_scale;
201 uint8_t bs_alter_scale;
202 uint8_t bs_noise_bands;
203 uint8_t bs_limiter_bands;
204 uint8_t bs_limiter_gains;
205 uint8_t bs_interpol_freq;
206 uint8_t bs_smoothing_mode;
207 uint8_t bs_samplerate_mode;
208 uint8_t bs_add_harmonic_flag[2];
209 uint8_t bs_add_harmonic_flag_prev[2];
210 uint8_t bs_extended_data;
211 uint8_t bs_extension_id;
212 uint8_t bs_extension_data;
213 uint8_t bs_coupling;
214 uint8_t bs_frame_class[2];
215 uint8_t bs_rel_bord[2][9];
216 uint8_t bs_rel_bord_0[2][9];
217 uint8_t bs_rel_bord_1[2][9];
218 uint8_t bs_pointer[2];
219 uint8_t bs_abs_bord_0[2];
220 uint8_t bs_abs_bord_1[2];
221 uint8_t bs_num_rel_0[2];
222 uint8_t bs_num_rel_1[2];
223 uint8_t bs_df_env[2][9];
224 uint8_t bs_df_noise[2][3];
225 } sbr_info;
227 sbr_info *sbrDecodeInit(uint16_t framelength, uint8_t id_aac,
228 uint32_t sample_rate, uint8_t downSampledSBR
229 #ifdef DRM
230 , uint8_t IsDRM
231 #endif
233 void sbrDecodeEnd(sbr_info *sbr);
235 uint8_t sbrDecodeCoupleFrame(sbr_info *sbr, real_t *left_chan, real_t *right_chan,
236 const uint8_t just_seeked, const uint8_t downSampledSBR);
237 uint8_t sbrDecodeSingleFrame(sbr_info *sbr, real_t *channel,
238 const uint8_t just_seeked, const uint8_t downSampledSBR);
239 #if (defined(PS_DEC) || defined(DRM_PS))
240 uint8_t sbrDecodeSingleFramePS(sbr_info *sbr, real_t *left_channel, real_t *right_channel,
241 const uint8_t just_seeked, const uint8_t downSampledSBR);
242 #endif
245 #ifdef __cplusplus
247 #endif
248 #endif