ac3tab.h File Reference

#include "libavutil/common.h"

Go to the source code of this file.

Enumerations
enum	CustomChannelMapLocation {   AC3_CHMAP_L = 1<<(15-0), AC3_CHMAP_C = 1<<(15-1), AC3_CHMAP_R = 1<<(15-2), AC3_CHMAP_L_SUR = 1<<(15-3),   AC3_CHMAP_R_SUR = 1<<(15-4), AC3_CHMAP_C_SUR = 1<<(15-7), AC3_CHMAP_LFE = 1<<(15-15) }
Variables
const uint16_t	ff_ac3_frame_size_tab [38][3]
const uint8_t	ff_ac3_channels_tab [8]
const uint16_t	ff_ac3_sample_rate_tab [3]
const uint16_t	ff_ac3_bitrate_tab [19]
const int16_t	ff_ac3_window [256]
const uint8_t	ff_ac3_log_add_tab [260]
const uint16_t	ff_ac3_hearing_threshold_tab [50][3]
const uint8_t	ff_ac3_bap_tab [64]
const uint8_t	ff_ac3_slow_decay_tab [4]
const uint8_t	ff_ac3_fast_decay_tab [4]
const uint16_t	ff_ac3_slow_gain_tab [4]
const uint16_t	ff_ac3_db_per_bit_tab [4]
const int16_t	ff_ac3_floor_tab [8]
const uint16_t	ff_ac3_fast_gain_tab [8]
const uint8_t	ff_ac3_critical_band_size_tab [50]
const uint16_t	ff_eac3_default_chmap [8]

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Enumeration Type Documentation

enum CustomChannelMapLocation

Custom channel map locations bitmask Other channels described in documentation: Lc/Rc pair, Lrs/Rrs pair, Ts, Lsd/Rsd pair, Lw/Rw pair, Lvh/Rvh pair, Cvh, Reserved, LFE2

Enumerator:

AC3_CHMAP_L
AC3_CHMAP_C
AC3_CHMAP_R
AC3_CHMAP_L_SUR
AC3_CHMAP_R_SUR
AC3_CHMAP_C_SUR
AC3_CHMAP_LFE

Definition at line 49 of file ac3tab.h.

                             {
    AC3_CHMAP_L=        1<<(15-0),
    AC3_CHMAP_C=        1<<(15-1),
    AC3_CHMAP_R=        1<<(15-2),
    AC3_CHMAP_L_SUR=    1<<(15-3),
    AC3_CHMAP_R_SUR =   1<<(15-4),
    AC3_CHMAP_C_SUR=    1<<(15-7),
    AC3_CHMAP_LFE =     1<<(15-15)
};

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Variable Documentation

const uint8_t ff_ac3_bap_tab[64]

Definition at line 211 of file ac3tab.c.

Referenced by ac3_parametric_bit_allocation(), and bit_alloc().

const uint16_t ff_ac3_bitrate_tab[19]

Definition at line 86 of file ac3tab.c.

Referenced by AC3_encode_init(), and ff_ac3_parse_header().

const uint8_t ff_ac3_channels_tab[8]

Maps audio coding mode (acmod) to number of full-bandwidth channels. from ATSC A/52 Table 5.8 Audio Coding Mode

Definition at line 78 of file ac3tab.c.

Referenced by ff_ac3_parse_header().

const uint8_t ff_ac3_critical_band_size_tab[50]

Definition at line 245 of file ac3tab.c.

Referenced by ac3_common_init(), and ff_ac3_bit_alloc_calc_bap().

const uint16_t ff_ac3_db_per_bit_tab[4]

Definition at line 233 of file ac3tab.c.

Referenced by compute_bit_allocation().

const uint8_t ff_ac3_fast_decay_tab[4]

Definition at line 225 of file ac3tab.c.

Referenced by compute_bit_allocation().

const uint16_t ff_ac3_fast_gain_tab[8]

Definition at line 241 of file ac3tab.c.

Referenced by bit_alloc_masking().

const int16_t ff_ac3_floor_tab[8]

Definition at line 237 of file ac3tab.c.

Referenced by compute_bit_allocation().

const uint16_t ff_ac3_frame_size_tab[38][3]

Possible frame sizes. from ATSC A/52 Table 5.18 Frame Size Code Table.

Definition at line 33 of file ac3tab.c.

Referenced by AC3_encode_init(), and ff_ac3_parse_header().

const uint16_t ff_ac3_hearing_threshold_tab[50][3]

Definition at line 158 of file ac3tab.c.

Referenced by ff_ac3_bit_alloc_calc_mask().

const uint8_t ff_ac3_log_add_tab[260]

Definition at line 129 of file ac3tab.c.

Referenced by ff_ac3_bit_alloc_calc_psd().

const uint16_t ff_ac3_sample_rate_tab[3]

Definition at line 83 of file ac3tab.c.

Referenced by AC3_encode_init(), and ff_ac3_parse_header().

const uint8_t ff_ac3_slow_decay_tab[4]

Definition at line 221 of file ac3tab.c.

Referenced by compute_bit_allocation().

const uint16_t ff_ac3_slow_gain_tab[4]

Definition at line 229 of file ac3tab.c.

Referenced by compute_bit_allocation().

const int16_t ff_ac3_window[256]

Definition at line 94 of file ac3tab.c.

Referenced by AC3_encode_frame().

const uint16_t ff_eac3_default_chmap[8]

Default channel map for a dependent substream defined by acmod

Definition at line 253 of file ac3tab.c.

Referenced by ff_ac3_parse_header_full().

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