/* * MPEG-4 Parametric Stereo definitions and declarations * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef AVCODEC_AACPS_H#define AVCODEC_AACPS_H #include <stdint.h> #include "libavutil/mem_internal.h" #include "aacpsdsp.h"#include "get_bits.h" #define PS_MAX_NUM_ENV 5#define PS_MAX_NR_IIDICC 34#define PS_MAX_NR_IPDOPD 17#define PS_MAX_SSB 91#define PS_MAX_AP_BANDS 50#define PS_QMF_TIME_SLOTS 32#define PS_MAX_DELAY 14#define PS_AP_LINKS 3#define PS_MAX_AP_DELAY 5#define PS_BASELINE 0  ///< Operate in Baseline PS mode                       ///< Baseline implies 10 or 20 stereo bands,                       ///< mixing mode A, and no ipd/opd #define numQMFSlots 32 //numTimeSlots * RATE typedef struct PSCommonContext {    int    start;    int    enable_iid;    int    iid_quant;    int    nr_iid_par;    int    nr_ipdopd_par;    int    enable_icc;    int    icc_mode;    int    nr_icc_par;    int    enable_ext;    int    frame_class;    int    num_env_old;    int    num_env;    int    enable_ipdopd;    int    border_position[PS_MAX_NUM_ENV+1];    int8_t iid_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-channel Intensity Difference Parameters    int8_t icc_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-Channel Coherence Parameters    /* ipd/opd is iid/icc sized so that the same functions can handle both */    int8_t ipd_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-channel Phase Difference Parameters    int8_t opd_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Overall Phase Difference Parameters    int    is34bands;    int    is34bands_old;} PSCommonContext; typedef struct PSContext {    PSCommonContext common;     DECLARE_ALIGNED(16, INTFLOAT, in_buf)[5][44][2];    DECLARE_ALIGNED(16, INTFLOAT, delay)[PS_MAX_SSB][PS_QMF_TIME_SLOTS + PS_MAX_DELAY][2];    DECLARE_ALIGNED(16, INTFLOAT, ap_delay)[PS_MAX_AP_BANDS][PS_AP_LINKS][PS_QMF_TIME_SLOTS + PS_MAX_AP_DELAY][2];    DECLARE_ALIGNED(16, INTFLOAT, peak_decay_nrg)[34];    DECLARE_ALIGNED(16, INTFLOAT, power_smooth)[34];    DECLARE_ALIGNED(16, INTFLOAT, peak_decay_diff_smooth)[34];    DECLARE_ALIGNED(16, INTFLOAT, H11)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];    DECLARE_ALIGNED(16, INTFLOAT, H12)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];    DECLARE_ALIGNED(16, INTFLOAT, H21)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];    DECLARE_ALIGNED(16, INTFLOAT, H22)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];    DECLARE_ALIGNED(16, INTFLOAT, Lbuf)[91][32][2];    DECLARE_ALIGNED(16, INTFLOAT, Rbuf)[91][32][2];    int8_t opd_hist[PS_MAX_NR_IIDICC];    int8_t ipd_hist[PS_MAX_NR_IIDICC];    PSDSPContext dsp;} PSContext; extern const int8_t ff_k_to_i_20[];extern const int8_t ff_k_to_i_34[]; void ff_ps_init_common(void);void AAC_RENAME(ff_ps_init)(void); static inline void AAC_RENAME(ff_ps_ctx_init)(PSContext *ps){    AAC_RENAME(ff_psdsp_init)(&ps->dsp);} int ff_ps_read_data(void *logctx, GetBitContext *gb,                     PSCommonContext *ps, int bits_left);int AAC_RENAME(ff_ps_apply)(PSContext *ps, INTFLOAT L[2][38][64], INTFLOAT R[2][38][64], int top); #endif /* AVCODEC_AACPS_H */