repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * MPEG-4 Parametric Stereo definitions and declarations | |
| 3 | * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com> | |
| 4 | * | |
| 5 | * This file is part of FFmpeg. | |
| 6 | * | |
| 7 | * FFmpeg is free software; you can redistribute it and/or | |
| 8 | * modify it under the terms of the GNU Lesser General Public | |
| 9 | * License as published by the Free Software Foundation; either | |
| 10 | * version 2.1 of the License, or (at your option) any later version. | |
| 11 | * | |
| 12 | * FFmpeg is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 | * Lesser General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU Lesser General Public | |
| 18 | * License along with FFmpeg; if not, write to the Free Software | |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 20 | */ | |
| 21 | ||
| 22 | #ifndef AVCODEC_PS_H | |
| 23 | #define AVCODEC_PS_H | |
| 24 | ||
| 25 | #include <stdint.h> | |
| 26 | ||
| 27 | #include "aacpsdsp.h" | |
| 28 | #include "avcodec.h" | |
| 29 | #include "get_bits.h" | |
| 30 | ||
| 31 | #define PS_MAX_NUM_ENV 5 | |
| 32 | #define PS_MAX_NR_IIDICC 34 | |
| 33 | #define PS_MAX_NR_IPDOPD 17 | |
| 34 | #define PS_MAX_SSB 91 | |
| 35 | #define PS_MAX_AP_BANDS 50 | |
| 36 | #define PS_QMF_TIME_SLOTS 32 | |
| 37 | #define PS_MAX_DELAY 14 | |
| 38 | #define PS_AP_LINKS 3 | |
| 39 | #define PS_MAX_AP_DELAY 5 | |
| 40 | ||
| 41 | typedef struct PSContext { | |
| 42 | int start; | |
| 43 | int enable_iid; | |
| 44 | int iid_quant; | |
| 45 | int nr_iid_par; | |
| 46 | int nr_ipdopd_par; | |
| 47 | int enable_icc; | |
| 48 | int icc_mode; | |
| 49 | int nr_icc_par; | |
| 50 | int enable_ext; | |
| 51 | int frame_class; | |
| 52 | int num_env_old; | |
| 53 | int num_env; | |
| 54 | int enable_ipdopd; | |
| 55 | int border_position[PS_MAX_NUM_ENV+1]; | |
| 56 | int8_t iid_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-channel Intensity Difference Parameters | |
| 57 | int8_t icc_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-Channel Coherence Parameters | |
| 58 | /* ipd/opd is iid/icc sized so that the same functions can handle both */ | |
| 59 | int8_t ipd_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-channel Phase Difference Parameters | |
| 60 | int8_t opd_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Overall Phase Difference Parameters | |
| 61 | int is34bands; | |
| 62 | int is34bands_old; | |
| 63 | ||
| 64 | DECLARE_ALIGNED(16, float, in_buf)[5][44][2]; | |
| 65 | DECLARE_ALIGNED(16, float, delay)[PS_MAX_SSB][PS_QMF_TIME_SLOTS + PS_MAX_DELAY][2]; | |
| 66 | DECLARE_ALIGNED(16, float, ap_delay)[PS_MAX_AP_BANDS][PS_AP_LINKS][PS_QMF_TIME_SLOTS + PS_MAX_AP_DELAY][2]; | |
| 67 | DECLARE_ALIGNED(16, float, peak_decay_nrg)[34]; | |
| 68 | DECLARE_ALIGNED(16, float, power_smooth)[34]; | |
| 69 | DECLARE_ALIGNED(16, float, peak_decay_diff_smooth)[34]; | |
| 70 | DECLARE_ALIGNED(16, float, H11)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC]; | |
| 71 | DECLARE_ALIGNED(16, float, H12)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC]; | |
| 72 | DECLARE_ALIGNED(16, float, H21)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC]; | |
| 73 | DECLARE_ALIGNED(16, float, H22)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC]; | |
| 74 | int8_t opd_hist[PS_MAX_NR_IIDICC]; | |
| 75 | int8_t ipd_hist[PS_MAX_NR_IIDICC]; | |
| 76 | PSDSPContext dsp; | |
| 77 | } PSContext; | |
| 78 | ||
| 79 | void ff_ps_init(void); | |
| 80 | void ff_ps_ctx_init(PSContext *ps); | |
| 81 | int ff_ps_read_data(AVCodecContext *avctx, GetBitContext *gb, PSContext *ps, int bits_left); | |
| 82 | int ff_ps_apply(AVCodecContext *avctx, PSContext *ps, float L[2][38][64], float R[2][38][64], int top); | |
| 83 | ||
| 84 | #endif /* AVCODEC_PS_H */ |