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diff --git a/audio_codec/libfaad/structs.h b/audio_codec/libfaad/structs.h new file mode 100644 index 0000000..73f81cc --- a/dev/null +++ b/audio_codec/libfaad/structs.h @@ -0,0 +1,513 @@ +/* +** 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; + +#define NEW_CODE_CHECK_LATM +#ifdef NEW_CODE_CHECK_LATM +#define LOAS_HEADER_SIZE 3 + /**************************************************************************** + * LOAS helpers + ****************************************************************************/ +#define LATM_MAX_EXTRA_SIZE 64 + typedef struct { + int i_object_type; + int i_samplerate; + int i_channel; + int i_sbr; // 0: no sbr, 1: sbr, -1: unknown + int i_ps; // 0: no ps, 1: ps, -1: unknown + + struct { + int i_object_type; + int i_samplerate; + } extension; + + /* GASpecific */ + int i_frame_length; // 1024 or 960 + + } mpeg4_cfg_t; + typedef struct { + int i_program; + int i_layer; + + int i_frame_length_type; + int i_frame_length; // type 1 + int i_frame_length_index; // type 3 4 5 6 7 + + mpeg4_cfg_t cfg; + + /* Raw configuration */ + int i_extra; + uint8_t extra[LATM_MAX_EXTRA_SIZE]; + + } latm_stream_t; + +#define LATM_MAX_LAYER (8) +#define LATM_MAX_PROGRAM (16) + typedef struct { + int b_same_time_framing; + int i_sub_frames; + int i_programs; + + int pi_layers[LATM_MAX_PROGRAM]; + + int pi_stream[LATM_MAX_PROGRAM][LATM_MAX_LAYER]; + + int i_streams; + latm_stream_t stream[LATM_MAX_PROGRAM*LATM_MAX_LAYER]; + + int i_other_data; + int i_crc; /* -1 if not set */ + } latm_mux_t; + + typedef struct { + /* + * Input properties + */ + int i_state; + int i_type; + int i_frame_size; + unsigned int i_channels; + unsigned int i_rate, i_frame_length, i_header_size; + int i_input_rate; + /* LOAS */ + unsigned char b_latm_cfg; + latm_mux_t latm; + } decoder_sys_t; + +#endif + 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; + + /*add for loas sub frame large than one*/ + void *sample_buffer_all; + + 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; +#ifdef NEW_CODE_CHECK_LATM + decoder_sys_t dec_sys; +#endif + int last_sf_index; + int last_ch_configure; + } NeAACDecStruct; + + + +#ifdef __cplusplus +} +#endif +#endif |