blob: 95b06e1408abf57a0d4464a4681da6662a50b356
| 1 | /* |
| 2 | ** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding |
| 3 | ** Copyright (C) 2003-2005 M. Bakker, Nero 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. |
| 14 | ** |
| 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. |
| 18 | ** |
| 19 | ** Any non-GPL usage of this software or parts of this software is strictly |
| 20 | ** forbidden. |
| 21 | ** |
| 22 | ** The "appropriate copyright message" mentioned in section 2c of the GPLv2 |
| 23 | ** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com" |
| 24 | ** |
| 25 | ** Commercial non-GPL licensing of this software is possible. |
| 26 | ** For more info contact Nero AG through Mpeg4AAClicense@nero.com. |
| 27 | ** |
| 28 | ** $Id: drm_dec.h,v 1.8 2007/11/01 12:33:30 menno Exp $ |
| 29 | **/ |
| 30 | |
| 31 | #ifndef __DRM_DEC_H__ |
| 32 | #define __DRM_DEC_H__ |
| 33 | |
| 34 | #ifdef __cplusplus |
| 35 | extern "C" { |
| 36 | #endif |
| 37 | |
| 38 | #include "bits.h" |
| 39 | |
| 40 | #define DRM_PARAMETRIC_STEREO 0 |
| 41 | #define DRM_NUM_SA_BANDS 8 |
| 42 | #define DRM_NUM_PAN_BANDS 20 |
| 43 | #define NUM_OF_LINKS 3 |
| 44 | #define NUM_OF_QMF_CHANNELS 64 |
| 45 | #define NUM_OF_SUBSAMPLES 30 |
| 46 | #define MAX_SA_BAND 46 |
| 47 | #define MAX_PAN_BAND 64 |
| 48 | #define MAX_DELAY 5 |
| 49 | |
| 50 | typedef struct { |
| 51 | uint8_t drm_ps_data_available; |
| 52 | uint8_t bs_enable_sa; |
| 53 | uint8_t bs_enable_pan; |
| 54 | |
| 55 | uint8_t bs_sa_dt_flag; |
| 56 | uint8_t bs_pan_dt_flag; |
| 57 | |
| 58 | uint8_t g_last_had_sa; |
| 59 | uint8_t g_last_had_pan; |
| 60 | |
| 61 | int8_t bs_sa_data[DRM_NUM_SA_BANDS]; |
| 62 | int8_t bs_pan_data[DRM_NUM_PAN_BANDS]; |
| 63 | |
| 64 | int8_t g_sa_index[DRM_NUM_SA_BANDS]; |
| 65 | int8_t g_pan_index[DRM_NUM_PAN_BANDS]; |
| 66 | int8_t g_prev_sa_index[DRM_NUM_SA_BANDS]; |
| 67 | int8_t g_prev_pan_index[DRM_NUM_PAN_BANDS]; |
| 68 | |
| 69 | int8_t sa_decode_error; |
| 70 | int8_t pan_decode_error; |
| 71 | |
| 72 | int8_t g_last_good_sa_index[DRM_NUM_SA_BANDS]; |
| 73 | int8_t g_last_good_pan_index[DRM_NUM_PAN_BANDS]; |
| 74 | |
| 75 | qmf_t SA[NUM_OF_SUBSAMPLES][MAX_SA_BAND]; |
| 76 | |
| 77 | complex_t d_buff[2][MAX_SA_BAND]; |
| 78 | complex_t d2_buff[NUM_OF_LINKS][MAX_DELAY][MAX_SA_BAND]; |
| 79 | |
| 80 | uint8_t delay_buf_index_ser[NUM_OF_LINKS]; |
| 81 | |
| 82 | real_t prev_nrg[MAX_SA_BAND]; |
| 83 | real_t prev_peakdiff[MAX_SA_BAND]; |
| 84 | real_t peakdecay_fast[MAX_SA_BAND]; |
| 85 | } drm_ps_info; |
| 86 | |
| 87 | |
| 88 | uint16_t drm_ps_data(drm_ps_info *ps, bitfile *ld); |
| 89 | |
| 90 | drm_ps_info *drm_ps_init(void); |
| 91 | void drm_ps_free(drm_ps_info *ps); |
| 92 | |
| 93 | uint8_t drm_ps_decode(drm_ps_info *ps, uint8_t guess, qmf_t X_left[38][64], qmf_t X_right[38][64]); |
| 94 | |
| 95 | #ifdef __cplusplus |
| 96 | } |
| 97 | #endif |
| 98 | #endif |
| 99 | |
| 100 |