libfaad2 v2.0rc1 imported

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@10726 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 427 insertions, 0 deletions

diff --git a/libfaad2/structs.h b/libfaad2/structs.h
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+/*
+** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
+** Copyright (C) 2003 M. Bakker, Ahead Software AG, http://www.nero.com
+**  
+** This program is free software; you can redistribute it and/or modify
+** it under the terms of the GNU General Public License as published by
+** the Free Software Foundation; either version 2 of the License, or
+** (at your option) any later version.
+** 
+** This program 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 General Public License for more details.
+** 
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software 
+** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+**
+** Any non-GPL usage of this software or parts of this software is strictly
+** forbidden.
+**
+** Commercial non-GPL licensing of this software is possible.
+** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
+**
+** $Id: structs.h,v 1.10 2003/07/29 08:20:14 menno Exp $
+**/
+
+#ifndef __STRUCTS_H__
+#define __STRUCTS_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef SBR_DEC
+#include "sbr_dec.h"
+#endif
+
+#define MAX_CHANNELS        64
+#define MAX_SYNTAX_ELEMENTS 48
+#define MAX_WINDOW_GROUPS    8
+#define MAX_SFB             51
+#define MAX_LTP_SFB         40
+#define MAX_LTP_SFB_S        8
+
+/* used to save the prediction state */
+typedef struct {
+    real_t r[2];
+    real_t KOR[2];
+    real_t VAR[2];
+} pred_state;
+
+typedef struct
+{
+    uint16_t n;
+    uint16_t ifac[15];
+    complex_t *work;
+    complex_t *tab;
+} cfft_info;
+
+typedef struct {
+    uint16_t N;
+    cfft_info *cfft;
+    complex_t *sincos;
+    complex_t *Z1;
+} mdct_info;
+
+typedef struct
+{
+    real_t *long_window[2];
+    real_t *short_window[2];
+#ifdef LD_DEC
+    real_t *ld_window[2];
+#endif
+
+    mdct_info *mdct256;
+#ifdef LD_DEC
+    mdct_info *mdct1024;
+#endif
+    mdct_info *mdct2048;
+} fb_info;
+
+typedef struct
+{
+    uint8_t present;
+
+    uint8_t num_bands;
+    uint8_t pce_instance_tag;
+    uint8_t excluded_chns_present;
+    uint8_t band_top[17];
+    uint8_t prog_ref_level;
+    uint8_t dyn_rng_sgn[17];
+    uint8_t dyn_rng_ctl[17];
+    uint8_t exclude_mask[MAX_CHANNELS];
+    uint8_t additional_excluded_chns[MAX_CHANNELS];
+
+    real_t ctrl1;
+    real_t ctrl2;
+} drc_info;
+
+typedef struct
+{
+    uint8_t element_instance_tag;
+    uint8_t object_type;
+    uint8_t sf_index;
+    uint8_t num_front_channel_elements;
+    uint8_t num_side_channel_elements;
+    uint8_t num_back_channel_elements;
+    uint8_t num_lfe_channel_elements;
+    uint8_t num_assoc_data_elements;
+    uint8_t num_valid_cc_elements;
+    uint8_t mono_mixdown_present;
+    uint8_t mono_mixdown_element_number;
+    uint8_t stereo_mixdown_present;
+    uint8_t stereo_mixdown_element_number;
+    uint8_t matrix_mixdown_idx_present;
+    uint8_t pseudo_surround_enable;
+    uint8_t matrix_mixdown_idx;
+    uint8_t front_element_is_cpe[16];
+    uint8_t front_element_tag_select[16];
+    uint8_t side_element_is_cpe[16];
+    uint8_t side_element_tag_select[16];
+    uint8_t back_element_is_cpe[16];
+    uint8_t back_element_tag_select[16];
+    uint8_t lfe_element_tag_select[16];
+    uint8_t assoc_data_element_tag_select[16];
+    uint8_t cc_element_is_ind_sw[16];
+    uint8_t valid_cc_element_tag_select[16];
+
+    uint8_t channels;
+
+    uint8_t comment_field_bytes;
+    uint8_t comment_field_data[257];
+
+    /* extra added values */
+    uint8_t num_front_channels;
+    uint8_t num_side_channels;
+    uint8_t num_back_channels;
+    uint8_t num_lfe_channels;
+    uint8_t sce_channel[16];
+    uint8_t cpe_channel[16];
+} program_config;
+
+typedef struct
+{
+    uint16_t syncword;
+    uint8_t id;
+    uint8_t layer;
+    uint8_t protection_absent;
+    uint8_t profile;
+    uint8_t sf_index;
+    uint8_t private_bit;
+    uint8_t channel_configuration;
+    uint8_t original;
+    uint8_t home;
+    uint8_t emphasis;
+    uint8_t copyright_identification_bit;
+    uint8_t copyright_identification_start;
+    uint16_t aac_frame_length;
+    uint16_t adts_buffer_fullness;
+    uint8_t no_raw_data_blocks_in_frame;
+    uint16_t crc_check;
+} adts_header;
+
+typedef struct
+{
+    uint8_t copyright_id_present;
+    int8_t copyright_id[10];
+    uint8_t original_copy;
+    uint8_t home;
+    uint8_t bitstream_type;
+    uint32_t bitrate;
+    uint8_t num_program_config_elements;
+    uint32_t adif_buffer_fullness;
+
+    /* maximum of 16 PCEs */
+    program_config pce[16];
+} adif_header;
+
+typedef struct
+{
+    uint8_t last_band;
+    uint8_t data_present;
+    uint16_t lag;
+    uint8_t lag_update;
+    uint8_t coef;
+    uint8_t long_used[MAX_SFB];
+    uint8_t short_used[8];
+    uint8_t short_lag_present[8];
+    uint8_t short_lag[8];
+} ltp_info;
+
+typedef struct
+{
+    uint8_t limit;
+    uint8_t predictor_reset;
+    uint8_t predictor_reset_group_number;
+    uint8_t prediction_used[MAX_SFB];
+} pred_info;
+
+typedef struct
+{
+    uint8_t number_pulse;
+    uint8_t pulse_start_sfb;
+    uint8_t pulse_offset[4];
+    uint8_t pulse_amp[4];
+} pulse_info;
+
+typedef struct
+{
+    uint8_t n_filt[8];
+    uint8_t coef_res[8];
+    uint8_t length[8][4];
+    uint8_t order[8][4];
+    uint8_t direction[8][4];
+    uint8_t coef_compress[8][4];
+    uint8_t coef[8][4][32];
+} tns_info;
+
+#ifdef SSR_DEC
+typedef struct
+{
+    uint8_t max_band;
+
+    uint8_t adjust_num[4][8];
+    uint8_t alevcode[4][8][8];
+    uint8_t aloccode[4][8][8];
+} ssr_info;
+#endif
+
+typedef struct
+{
+    uint8_t max_sfb;
+
+    uint8_t num_swb;
+    uint8_t num_window_groups;
+    uint8_t num_windows;
+    uint8_t window_sequence;
+    uint8_t window_group_length[8];
+    uint8_t window_shape;
+    uint8_t scale_factor_grouping;
+    uint16_t sect_sfb_offset[8][15*8];
+    uint16_t swb_offset[52];
+
+    uint8_t sect_cb[8][15*8];
+    uint16_t sect_start[8][15*8];
+    uint16_t sect_end[8][15*8];
+    uint8_t sfb_cb[8][8*15];
+    uint8_t num_sec[8]; /* number of sections in a group */
+
+    uint8_t global_gain;
+    int16_t scale_factors[8][51];
+
+    uint8_t ms_mask_present;
+    uint8_t ms_used[MAX_WINDOW_GROUPS][MAX_SFB];
+
+    uint8_t noise_used;
+
+    uint8_t pulse_data_present;
+    uint8_t tns_data_present;
+    uint8_t gain_control_data_present;
+    uint8_t predictor_data_present;
+
+    pulse_info pul;
+    tns_info tns;
+    pred_info pred;
+    ltp_info ltp;
+    ltp_info ltp2;
+#ifdef SSR_DEC
+    ssr_info ssr;
+#endif
+
+#ifdef ERROR_RESILIENCE
+    /* ER HCR data */
+    uint16_t length_of_reordered_spectral_data;
+    uint8_t length_of_longest_codeword;
+    /* ER RLVC data */
+    uint8_t sf_concealment;
+    uint8_t rev_global_gain;
+    uint16_t length_of_rvlc_sf;
+    uint16_t dpcm_noise_nrg;
+    uint8_t sf_escapes_present;
+    uint8_t length_of_rvlc_escapes;
+    uint16_t dpcm_noise_last_position;
+#endif
+} ic_stream; /* individual channel stream */
+
+typedef struct
+{
+    uint8_t ele_id;
+
+    uint8_t channel;
+    int16_t paired_channel;
+
+    uint8_t element_instance_tag;
+    uint8_t common_window;
+
+    ic_stream ics1;
+    ic_stream ics2;
+} element; /* syntax element (SCE, CPE, LFE) */
+
+typedef struct mp4AudioSpecificConfig
+{
+    /* Audio Specific Info */
+    uint8_t objectTypeIndex;
+    uint8_t samplingFrequencyIndex;
+    uint32_t samplingFrequency;
+    uint8_t channelsConfiguration;
+
+    /* GA Specific Info */
+    uint8_t frameLengthFlag;
+    uint8_t dependsOnCoreCoder;
+    uint16_t coreCoderDelay;
+    uint8_t extensionFlag;
+    uint8_t aacSectionDataResilienceFlag;
+    uint8_t aacScalefactorDataResilienceFlag;
+    uint8_t aacSpectralDataResilienceFlag;
+    uint8_t epConfig;
+
+    int8_t sbr_present_flag;
+} mp4AudioSpecificConfig;
+
+typedef struct faacDecConfiguration
+{
+    uint8_t defObjectType;
+    uint32_t defSampleRate;
+    uint8_t outputFormat;
+    uint8_t downMatrix;
+} faacDecConfiguration, *faacDecConfigurationPtr;
+
+typedef struct faacDecFrameInfo
+{
+    uint32_t bytesconsumed;
+    uint32_t samples;
+    uint8_t channels;
+    uint8_t error;
+    uint32_t samplerate;
+
+    /* multichannel configuration */
+    uint8_t num_front_channels;
+    uint8_t num_side_channels;
+    uint8_t num_back_channels;
+    uint8_t num_lfe_channels;
+    uint8_t channel_position[MAX_CHANNELS];
+} faacDecFrameInfo;
+
+typedef struct
+{
+    uint8_t adts_header_present;
+    uint8_t adif_header_present;
+    uint8_t sf_index;
+    uint8_t object_type;
+    uint8_t channelConfiguration;
+#ifdef ERROR_RESILIENCE
+    uint8_t aacSectionDataResilienceFlag;
+    uint8_t aacScalefactorDataResilienceFlag;
+    uint8_t aacSpectralDataResilienceFlag;
+#endif
+    uint16_t frameLength;
+    uint16_t samplesLeft;
+    uint8_t postSeekResetFlag;
+
+    uint32_t frame;
+
+    uint8_t downMatrix;
+    uint8_t first_syn_ele;
+    uint8_t last_syn_ele;
+    uint8_t has_lfe;
+    uint8_t fr_channels;
+    uint8_t fr_ch_ele;
+
+    void *sample_buffer;
+
+    uint8_t window_shape_prev[MAX_CHANNELS];
+#ifdef LTP_DEC
+    uint16_t ltp_lag[MAX_CHANNELS];
+#endif
+    fb_info *fb;
+    drc_info *drc;
+
+    real_t *time_out[MAX_CHANNELS];
+
+#ifdef SBR_DEC
+    int8_t sbr_present_flag;
+
+    real_t *time_out2[MAX_CHANNELS];
+
+    uint8_t sbr_used[32];
+
+    sbr_info *sbr[32];
+#endif
+
+#ifdef SSR_DEC
+    real_t *ssr_overlap[MAX_CHANNELS];
+    real_t *prev_fmd[MAX_CHANNELS];
+    real_t ipqf_buffer[MAX_CHANNELS][4][96/4];
+#endif
+
+#ifdef MAIN_DEC
+    pred_state *pred_stat[MAX_CHANNELS];
+#endif
+#ifdef LTP_DEC
+    real_t *lt_pred_stat[MAX_CHANNELS];
+#endif
+
+#ifndef FIXED_POINT
+#if POW_TABLE_SIZE
+    real_t *pow2_table;
+#endif
+#endif
+
+    /* Program Config Element */
+    uint8_t pce_set;
+    program_config pce;
+    uint8_t channel_element[MAX_CHANNELS];
+    uint8_t internal_channel[MAX_CHANNELS];
+
+    /* Configuration data */
+    faacDecConfiguration config;
+} faacDecStruct, *faacDecHandle;
+
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif