Atrac3pChanParams Struct Reference

Sound channel parameters. More...

#include <atrac3plus.h>

Data Fields
int	ch_num
int	num_coded_vals
	number of transmitted quant unit values
int	fill_mode
int	split_point
int	table_type
	table type: 0 - tone?, 1- noise?
int	qu_wordlen [32]
	array of word lengths for each quant unit
int	qu_sf_idx [32]
	array of scale factor indexes for each quant unit
int	qu_tab_idx [32]
	array of code table indexes for each quant unit
int16_t	spectrum [2048]
	decoded IMDCT spectrum
uint8_t	power_levs [5]
	power compensation levels
uint8_t	wnd_shape_hist [2][ATRAC3P_SUBBANDS]
	IMDCT window shape, 0=sine/1=steep.
uint8_t *	wnd_shape
	IMDCT window shape for current frame.
uint8_t *	wnd_shape_prev
	IMDCT window shape for previous frame.
AtracGainInfo	gain_data_hist [2][ATRAC3P_SUBBANDS]
	gain control data for all subbands
AtracGainInfo *	gain_data
	gain control data for next frame
AtracGainInfo *	gain_data_prev
	gain control data for previous frame
int	num_gain_subbands
	number of subbands with gain control data
Atrac3pWavesData	tones_info_hist [2][ATRAC3P_SUBBANDS]
Atrac3pWavesData *	tones_info
Atrac3pWavesData *	tones_info_prev

Detailed Description

Sound channel parameters.

Definition at line 89 of file atrac3plus.h.

Field Documentation

int Atrac3pChanParams::ch_num

Definition at line 90 of file atrac3plus.h.

Referenced by add_wordlen_weights(), atrac3p_decode_init(), and num_coded_units().

int Atrac3pChanParams::num_coded_vals

number of transmitted quant unit values

Definition at line 91 of file atrac3plus.h.

Referenced by decode_channel_wordlen(), and num_coded_units().

int Atrac3pChanParams::fill_mode

Definition at line 92 of file atrac3plus.h.

Referenced by decode_channel_wordlen(), and num_coded_units().

int Atrac3pChanParams::split_point

Definition at line 93 of file atrac3plus.h.

Referenced by decode_channel_wordlen(), and num_coded_units().

int Atrac3pChanParams::table_type

table type: 0 - tone?, 1- noise?

Definition at line 94 of file atrac3plus.h.

Referenced by decode_channel_code_tab(), and decode_spectrum().

int Atrac3pChanParams::qu_wordlen[32]

array of word lengths for each quant unit

Definition at line 95 of file atrac3plus.h.

Referenced by add_wordlen_weights(), decode_channel_wordlen(), decode_quant_wordlen(), decode_residual_spectrum(), decode_spectrum(), and ff_atrac3p_power_compensation().

int Atrac3pChanParams::qu_sf_idx[32]

array of scale factor indexes for each quant unit

Definition at line 96 of file atrac3plus.h.

Referenced by decode_channel_sf_idx(), decode_residual_spectrum(), decode_scale_factors(), ff_atrac3p_power_compensation(), and subtract_sf_weights().

int Atrac3pChanParams::qu_tab_idx[32]

array of code table indexes for each quant unit

Definition at line 97 of file atrac3plus.h.

Referenced by decode_code_table_indexes(), and decode_spectrum().

int16_t Atrac3pChanParams::spectrum[2048]

decoded IMDCT spectrum

Definition at line 98 of file atrac3plus.h.

Referenced by decode_residual_spectrum(), and decode_spectrum().

uint8_t Atrac3pChanParams::power_levs[5]

power compensation levels

Definition at line 99 of file atrac3plus.h.

Referenced by decode_spectrum(), and ff_atrac3p_power_compensation().

uint8_t Atrac3pChanParams::wnd_shape_hist[2][ATRAC3P_SUBBANDS]

IMDCT window shape, 0=sine/1=steep.

Definition at line 102 of file atrac3plus.h.

Referenced by atrac3p_decode_init().

uint8_t* Atrac3pChanParams::wnd_shape

IMDCT window shape for current frame.

Definition at line 103 of file atrac3plus.h.

Referenced by atrac3p_decode_init(), decode_window_shape(), and reconstruct_frame().

uint8_t* Atrac3pChanParams::wnd_shape_prev

IMDCT window shape for previous frame.

Definition at line 104 of file atrac3plus.h.

Referenced by atrac3p_decode_init(), and reconstruct_frame().

AtracGainInfo Atrac3pChanParams::gain_data_hist[2][ATRAC3P_SUBBANDS]

gain control data for all subbands

Definition at line 107 of file atrac3plus.h.

Referenced by atrac3p_decode_init().

AtracGainInfo* Atrac3pChanParams::gain_data

gain control data for next frame

Definition at line 108 of file atrac3plus.h.

Referenced by atrac3p_decode_init(), decode_gainc_data(), decode_gainc_levels(), decode_gainc_loc_codes(), decode_gainc_npoints(), ff_atrac3p_power_compensation(), and reconstruct_frame().

AtracGainInfo* Atrac3pChanParams::gain_data_prev

gain control data for previous frame

Definition at line 109 of file atrac3plus.h.

Referenced by atrac3p_decode_init(), ff_atrac3p_power_compensation(), and reconstruct_frame().

int Atrac3pChanParams::num_gain_subbands

number of subbands with gain control data

Definition at line 110 of file atrac3plus.h.

Referenced by decode_gainc_data().

Atrac3pWavesData Atrac3pChanParams::tones_info_hist[2][ATRAC3P_SUBBANDS]

Definition at line 113 of file atrac3plus.h.

Referenced by atrac3p_decode_init().

Atrac3pWavesData* Atrac3pChanParams::tones_info

Definition at line 114 of file atrac3plus.h.

Referenced by atrac3p_decode_init(), decode_band_numwavs(), decode_tones_amplitude(), decode_tones_envelope(), decode_tones_frequency(), decode_tones_info(), decode_tones_phase(), ff_atrac3p_generate_tones(), and reconstruct_frame().

Atrac3pWavesData* Atrac3pChanParams::tones_info_prev

Definition at line 115 of file atrac3plus.h.

Referenced by atrac3p_decode_init(), ff_atrac3p_generate_tones(), and reconstruct_frame().

---

The documentation for this struct was generated from the following file:

• libavcodec/atrac3plus.h