yading@10: /*
yading@10:  * MPEG-4 Parametric Stereo definitions and declarations
yading@10:  * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: #ifndef AVCODEC_PS_H
yading@10: #define AVCODEC_PS_H
yading@10: 
yading@10: #include <stdint.h>
yading@10: 
yading@10: #include "aacpsdsp.h"
yading@10: #include "avcodec.h"
yading@10: #include "get_bits.h"
yading@10: 
yading@10: #define PS_MAX_NUM_ENV 5
yading@10: #define PS_MAX_NR_IIDICC 34
yading@10: #define PS_MAX_NR_IPDOPD 17
yading@10: #define PS_MAX_SSB 91
yading@10: #define PS_MAX_AP_BANDS 50
yading@10: #define PS_QMF_TIME_SLOTS 32
yading@10: #define PS_MAX_DELAY 14
yading@10: #define PS_AP_LINKS 3
yading@10: #define PS_MAX_AP_DELAY 5
yading@10: 
yading@10: typedef struct PSContext {
yading@10:     int    start;
yading@10:     int    enable_iid;
yading@10:     int    iid_quant;
yading@10:     int    nr_iid_par;
yading@10:     int    nr_ipdopd_par;
yading@10:     int    enable_icc;
yading@10:     int    icc_mode;
yading@10:     int    nr_icc_par;
yading@10:     int    enable_ext;
yading@10:     int    frame_class;
yading@10:     int    num_env_old;
yading@10:     int    num_env;
yading@10:     int    enable_ipdopd;
yading@10:     int    border_position[PS_MAX_NUM_ENV+1];
yading@10:     int8_t iid_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-channel Intensity Difference Parameters
yading@10:     int8_t icc_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-Channel Coherence Parameters
yading@10:     /* ipd/opd is iid/icc sized so that the same functions can handle both */
yading@10:     int8_t ipd_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-channel Phase Difference Parameters
yading@10:     int8_t opd_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Overall Phase Difference Parameters
yading@10:     int    is34bands;
yading@10:     int    is34bands_old;
yading@10: 
yading@10:     DECLARE_ALIGNED(16, float, in_buf)[5][44][2];
yading@10:     DECLARE_ALIGNED(16, float, delay)[PS_MAX_SSB][PS_QMF_TIME_SLOTS + PS_MAX_DELAY][2];
yading@10:     DECLARE_ALIGNED(16, float, ap_delay)[PS_MAX_AP_BANDS][PS_AP_LINKS][PS_QMF_TIME_SLOTS + PS_MAX_AP_DELAY][2];
yading@10:     DECLARE_ALIGNED(16, float, peak_decay_nrg)[34];
yading@10:     DECLARE_ALIGNED(16, float, power_smooth)[34];
yading@10:     DECLARE_ALIGNED(16, float, peak_decay_diff_smooth)[34];
yading@10:     DECLARE_ALIGNED(16, float, H11)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
yading@10:     DECLARE_ALIGNED(16, float, H12)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
yading@10:     DECLARE_ALIGNED(16, float, H21)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
yading@10:     DECLARE_ALIGNED(16, float, H22)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
yading@10:     int8_t opd_hist[PS_MAX_NR_IIDICC];
yading@10:     int8_t ipd_hist[PS_MAX_NR_IIDICC];
yading@10:     PSDSPContext dsp;
yading@10: } PSContext;
yading@10: 
yading@10: void ff_ps_init(void);
yading@10: void ff_ps_ctx_init(PSContext *ps);
yading@10: int ff_ps_read_data(AVCodecContext *avctx, GetBitContext *gb, PSContext *ps, int bits_left);
yading@10: int ff_ps_apply(AVCodecContext *avctx, PSContext *ps, float L[2][38][64], float R[2][38][64], int top);
yading@10: 
yading@10: #endif /* AVCODEC_PS_H */