aacdec_usac_mps212.c File Reference

#include "aacdec_tab.h"
#include "libavcodec/get_bits.h"
#include "libavutil/macros.h"
#include "libavutil/avassert.h"
#include "aacdec_usac_mps212.h"

Go to the source code of this file.

Functions
static int	huff_dec_1D (GetBitContext *gb, const int16_t(*tab)[2])
static int	huff_dec_2D (GetBitContext *gb, const int16_t(*tab)[2], int16_t ret[2])
static int	huff_data_1d (GetBitContext *gb, int16_t *data, int data_bands, enum AACMPSDataType data_type, int diff_freq, int p0_flag)
static void	symmetry_data (GetBitContext *gb, int16_t data[2], uint8_t lav, enum AACMPSDataType data_type)
static int	mps_log2 (int s)
static void	pcm_decode (GetBitContext *gb, int16_t *data0, int16_t *data1, int16_t offset, int nb_pcm_data_bands, int nb_quant_steps, int nb_levels)
static void	huff_data_2d (GetBitContext *gb, int16_t *part0_data[2], int16_t(*data)[2], int data_bands, int stride, enum AACMPSDataType data_type, int diff_freq, int freq_pair)
static int	huff_decode (GetBitContext *gb, int16_t *data[2], enum AACMPSDataType data_type, int diff_freq[2], int num_val, int *time_pair)
static void	diff_freq_decode (const int16_t *diff, int16_t *out, int nb_val)
static void	diff_time_decode_backwards (const int16_t *prev, const int16_t *diff, int16_t *out, const int mixed_diff_type, const int nb_val)
static void	diff_time_decode_forwards (const int16_t *prev, const int16_t *diff, int16_t *out, const int mixed_diff_type, const int nb_val)
static void	attach_lsb (GetBitContext *gb, int16_t *data_msb, int offset, int nb_lsb, int nb_val, int16_t *data)
static int	ec_pair_dec (GetBitContext *gb, int16_t set1[MPS_MAX_PARAM_BANDS], int16_t set2[MPS_MAX_PARAM_BANDS], int16_t *last, enum AACMPSDataType data_type, int start_band, int nb_bands, int pair, int coarse, int diff_time_back)
static void	coarse_to_fine (int16_t *data, enum AACMPSDataType data_type, int start_band, int end_band)
static void	fine_to_coarse (int16_t *data, enum AACMPSDataType data_type, int start_band, int end_band)
static int	get_freq_strides (int16_t *freq_strides, int band_stride, int start_band, int end_band)
int	ff_aac_ec_data_dec (GetBitContext *gb, AACMPSLosslessData *ld, enum AACMPSDataType data_type, int default_val, int start_band, int end_band, int frame_indep_flag, int indep_flag, int nb_param_sets)
int	ff_aac_huff_dec_reshape (GetBitContext *gb, int16_t *out_data, int nb_val)
static void	create_mapping (int map[MPS_MAX_PARAM_BANDS+1], int start_band, int stop_band, int stride)
static void	map_freq (int16_t *dst, const int16_t *src, int *map, int nb_bands)
static int	deq_idx (int value, enum AACMPSDataType data_type)
int	ff_aac_map_index_data (AACMPSLosslessData *ld, enum AACMPSDataType data_type, int dst_idx[MPS_MAX_PARAM_SETS][MPS_MAX_PARAM_BANDS], int default_value, int start_band, int stop_band, int nb_param_sets, const int *param_set_idx, int extend_frame)

Variables
static const int	stride_table [4] = { 1, 2, 5, 28 }

Function Documentation

huff_dec_1D()

static int huff_dec_1D ( GetBitContext *  gb, const int16_t(*)  tab[2]  )

static

Definition at line 28 of file aacdec_usac_mps212.c.

Referenced by huff_data_1d(), huff_data_2d(), and huff_dec_2D().

huff_dec_2D()

static int huff_dec_2D ( GetBitContext *  gb, const int16_t(*)  tab[2], int16_t  ret[2]  )

static

Definition at line 38 of file aacdec_usac_mps212.c.

Referenced by ff_aac_huff_dec_reshape(), and huff_data_2d().

huff_data_1d()

static int huff_data_1d ( GetBitContext *  gb, int16_t *  data, int  data_bands, enum AACMPSDataType  data_type, int  diff_freq, int  p0_flag  )

static

Definition at line 53 of file aacdec_usac_mps212.c.

Referenced by huff_decode().

symmetry_data()

static void symmetry_data ( GetBitContext *  gb, int16_t  data[2], uint8_t  lav, enum AACMPSDataType  data_type  )

static

Definition at line 91 of file aacdec_usac_mps212.c.

Referenced by huff_data_2d().

mps_log2()

static int mps_log2 ( int  s )

static

Definition at line 118 of file aacdec_usac_mps212.c.

Referenced by pcm_decode().

pcm_decode()

static void pcm_decode ( GetBitContext *  gb, int16_t *  data0, int16_t *  data1, int16_t  offset, int  nb_pcm_data_bands, int  nb_quant_steps, int  nb_levels  )

static

Definition at line 129 of file aacdec_usac_mps212.c.

Referenced by ec_pair_dec(), and huff_data_2d().

huff_data_2d()

static void huff_data_2d ( GetBitContext *  gb, int16_t *  part0_data[2], int16_t(*)  data[2], int  data_bands, int  stride, enum AACMPSDataType  data_type, int  diff_freq, int  freq_pair  )

static

Definition at line 181 of file aacdec_usac_mps212.c.

Referenced by huff_decode().

huff_decode()

static int huff_decode ( GetBitContext *  gb, int16_t *  data[2], enum AACMPSDataType  data_type, int  diff_freq[2], int  num_val, int *  time_pair  )

static

Definition at line 248 of file aacdec_usac_mps212.c.

Referenced by ec_pair_dec().

diff_freq_decode()

static void diff_freq_decode ( const int16_t *  diff, int16_t *  out, int  nb_val  )

static

Definition at line 342 of file aacdec_usac_mps212.c.

Referenced by ec_pair_dec().

diff_time_decode_backwards()

static void diff_time_decode_backwards ( const int16_t *  prev, const int16_t *  diff, int16_t *  out, const int  mixed_diff_type, const int  nb_val  )

static

Definition at line 350 of file aacdec_usac_mps212.c.

Referenced by ec_pair_dec().

diff_time_decode_forwards()

static void diff_time_decode_forwards ( const int16_t *  prev, const int16_t *  diff, int16_t *  out, const int  mixed_diff_type, const int  nb_val  )

static

Definition at line 360 of file aacdec_usac_mps212.c.

Referenced by ec_pair_dec().

attach_lsb()

static void attach_lsb ( GetBitContext *  gb, int16_t *  data_msb, int  offset, int  nb_lsb, int  nb_val, int16_t *  data  )

static

Definition at line 370 of file aacdec_usac_mps212.c.

Referenced by ec_pair_dec().

ec_pair_dec()

static int ec_pair_dec ( GetBitContext *  gb, int16_t  set1[MPS_MAX_PARAM_BANDS], int16_t  set2[MPS_MAX_PARAM_BANDS], int16_t *  last, enum AACMPSDataType  data_type, int  start_band, int  nb_bands, int  pair, int  coarse, int  diff_time_back  )

static

Definition at line 385 of file aacdec_usac_mps212.c.

Referenced by ff_aac_ec_data_dec().

coarse_to_fine()

static void coarse_to_fine ( int16_t *  data, enum AACMPSDataType  data_type, int  start_band, int  end_band  )

static

Definition at line 550 of file aacdec_usac_mps212.c.

Referenced by ff_aac_ec_data_dec(), and ff_aac_map_index_data().

fine_to_coarse()

static void fine_to_coarse ( int16_t *  data, enum AACMPSDataType  data_type, int  start_band, int  end_band  )

static

Definition at line 565 of file aacdec_usac_mps212.c.

Referenced by ff_aac_ec_data_dec().

get_freq_strides()

static int get_freq_strides ( int16_t *  freq_strides, int  band_stride, int  start_band, int  end_band  )

static

Definition at line 576 of file aacdec_usac_mps212.c.

Referenced by ff_aac_ec_data_dec().

ff_aac_ec_data_dec()

int ff_aac_ec_data_dec	(	GetBitContext *	gb,
		AACMPSLosslessData *	ld,
		enum AACMPSDataType	data_type,
		int	default_val,
		int	start_band,
		int	end_band,
		int	frame_indep_flag,
		int	indep_flag,
		int	nb_param_sets
	)

Definition at line 599 of file aacdec_usac_mps212.c.

Referenced by parse_mps212().

ff_aac_huff_dec_reshape()

int ff_aac_huff_dec_reshape	(	GetBitContext *	gb,
		int16_t *	out_data,
		int	nb_val
	)

Definition at line 686 of file aacdec_usac_mps212.c.

Referenced by parse_mps212().

create_mapping()

static void create_mapping ( int  map[MPS_MAX_PARAM_BANDS+1], int  start_band, int  stop_band, int  stride  )

static

Definition at line 707 of file aacdec_usac_mps212.c.

Referenced by ff_aac_map_index_data().

map_freq()

static void map_freq ( int16_t *  dst, const int16_t *  src, int *  map, int  nb_bands  )

static

Definition at line 749 of file aacdec_usac_mps212.c.

Referenced by ff_aac_map_index_data().

deq_idx()

static int deq_idx ( int  value, enum AACMPSDataType  data_type  )

static

Definition at line 762 of file aacdec_usac_mps212.c.

Referenced by ff_aac_map_index_data().

ff_aac_map_index_data()

int ff_aac_map_index_data	(	AACMPSLosslessData *	ld,
		enum AACMPSDataType	data_type,
		int	dst_idx[MPS_MAX_PARAM_SETS][MPS_MAX_PARAM_BANDS],
		int	default_value,
		int	start_band,
		int	stop_band,
		int	nb_param_sets,
		const int *	param_set_idx,
		int	extend_frame
	)

Definition at line 786 of file aacdec_usac_mps212.c.

Referenced by parse_mps212().

Variable Documentation

stride_table

const int stride_table[4] = { 1, 2, 5, 28 }

static

Definition at line 597 of file aacdec_usac_mps212.c.

Referenced by ff_aac_ec_data_dec(), and ff_aac_map_index_data().