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Diffstat (limited to 'faad2/src/libfaad/structs.h')
| -rw-r--r-- | faad2/src/libfaad/structs.h | 445 |
1 files changed, 445 insertions, 0 deletions
diff --git a/faad2/src/libfaad/structs.h b/faad2/src/libfaad/structs.h new file mode 100644 index 0000000..0053d30 --- /dev/null +++ b/faad2/src/libfaad/structs.h @@ -0,0 +1,445 @@ +/*
+** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
+** Copyright (C) 2003-2005 M. Bakker, Nero 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.
+**
+** The "appropriate copyright message" mentioned in section 2c of the GPLv2
+** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com"
+**
+** Commercial non-GPL licensing of this software is possible.
+** For more info contact Nero AG through Mpeg4AAClicense@nero.com.
+**
+** $Id: structs.h,v 1.49 2009/01/26 23:51:15 menno Exp $
+**/
+
+#ifndef __STRUCTS_H__
+#define __STRUCTS_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "cfft.h"
+#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 {
+ int16_t r[2];
+ int16_t COR[2];
+ int16_t VAR[2];
+} pred_state;
+
+typedef struct {
+ uint16_t N;
+ cfft_info *cfft;
+ complex_t *sincos;
+#ifdef PROFILE
+ int64_t cycles;
+ int64_t fft_cycles;
+#endif
+} mdct_info;
+
+typedef struct
+{
+ const real_t *long_window[2];
+ const real_t *short_window[2];
+#ifdef LD_DEC
+ const real_t *ld_window[2];
+#endif
+
+ mdct_info *mdct256;
+#ifdef LD_DEC
+ mdct_info *mdct1024;
+#endif
+ mdct_info *mdct2048;
+#ifdef PROFILE
+ int64_t cycles;
+#endif
+} 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;
+
+ /* control param */
+ uint8_t old_format;
+} 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;
+
+#ifdef LTP_DEC
+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;
+#endif
+
+#ifdef MAIN_DEC
+typedef struct
+{
+ uint8_t limit;
+ uint8_t predictor_reset;
+ uint8_t predictor_reset_group_number;
+ uint8_t prediction_used[MAX_SFB];
+} pred_info;
+#endif
+
+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];
+ uint16_t swb_offset_max;
+
+ 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]; /* [0..255] */
+
+ uint8_t ms_mask_present;
+ uint8_t ms_used[MAX_WINDOW_GROUPS][MAX_SFB];
+
+ uint8_t noise_used;
+ uint8_t is_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;
+#ifdef MAIN_DEC
+ pred_info pred;
+#endif
+#ifdef LTP_DEC
+ ltp_info ltp;
+ ltp_info ltp2;
+#endif
+#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 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) */
+
+#define MAX_ASC_BYTES 64
+typedef struct {
+ int inited;
+ int version, versionA;
+ int framelen_type;
+ int useSameStreamMux;
+ int allStreamsSameTimeFraming;
+ int numSubFrames;
+ int numPrograms;
+ int numLayers;
+ int otherDataPresent;
+ uint32_t otherDataLenBits;
+ uint32_t frameLength;
+ uint8_t ASC[MAX_ASC_BYTES];
+ uint32_t ASCbits;
+} latm_header;
+
+typedef struct
+{
+ uint8_t adts_header_present;
+ uint8_t adif_header_present;
+ uint8_t latm_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;
+ uint8_t postSeekResetFlag;
+
+ uint32_t frame;
+
+ uint8_t downMatrix;
+ uint8_t upMatrix;
+ uint8_t first_syn_ele;
+ uint8_t has_lfe;
+ /* number of channels in current frame */
+ uint8_t fr_channels;
+ /* number of elements in current frame */
+ uint8_t fr_ch_ele;
+
+ /* element_output_channels:
+ determines the number of channels the element will output
+ */
+ uint8_t element_output_channels[MAX_SYNTAX_ELEMENTS];
+ /* element_alloced:
+ determines whether the data needed for the element is allocated or not
+ */
+ uint8_t element_alloced[MAX_SYNTAX_ELEMENTS];
+ /* alloced_channels:
+ determines the number of channels where output data is allocated for
+ */
+ uint8_t alloced_channels;
+
+ /* output data buffer */
+ 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];
+ real_t *fb_intermed[MAX_CHANNELS];
+
+#ifdef SBR_DEC
+ int8_t sbr_present_flag;
+ int8_t forceUpSampling;
+ int8_t downSampledSBR;
+ /* determines whether SBR data is allocated for the gives element */
+ uint8_t sbr_alloced[MAX_SYNTAX_ELEMENTS];
+
+ sbr_info *sbr[MAX_SYNTAX_ELEMENTS];
+#endif
+#if (defined(PS_DEC) || defined(DRM_PS))
+ uint8_t ps_used[MAX_SYNTAX_ELEMENTS];
+ uint8_t ps_used_global;
+#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
+ int16_t *lt_pred_stat[MAX_CHANNELS];
+#endif
+
+#ifdef DRM
+ uint8_t error_state;
+#endif
+
+ /* RNG states */
+ uint32_t __r1;
+ uint32_t __r2;
+
+ /* Program Config Element */
+ uint8_t pce_set;
+ program_config pce;
+ uint8_t element_id[MAX_CHANNELS];
+ uint8_t internal_channel[MAX_CHANNELS];
+
+ /* Configuration data */
+ NeAACDecConfiguration config;
+
+#ifdef PROFILE
+ int64_t cycles;
+ int64_t spectral_cycles;
+ int64_t output_cycles;
+ int64_t scalefac_cycles;
+ int64_t requant_cycles;
+#endif
+ latm_header latm_config;
+ const unsigned char *cmes;
+} NeAACDecStruct;
+
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif
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