aacenctab.h File Reference

AAC encoder data. More...

#include "aac.h"

Go to the source code of this file.

Macros
#define	CB_TOT   12
	Total number of usable codebooks. More...
#define	CB_TOT_ALL   15
	Total number of codebooks, including special ones. More...
#define	AAC_MAX_CHANNELS   16

Variables
const uint8_t *	ff_aac_swb_size_1024 []
const int	ff_aac_swb_size_1024_len
const uint8_t *	ff_aac_swb_size_128 []
const int	ff_aac_swb_size_128_len
static const int64_t	aac_normal_chan_layouts [7]
static const uint8_t	aac_chan_configs [AAC_MAX_CHANNELS][6]
	default channel configurations More...
static const uint8_t	aac_chan_maps [AAC_MAX_CHANNELS][AAC_MAX_CHANNELS]
	Table to remap channels from libavcodec's default order to AAC order. More...
static const int	mpeg4audio_sample_rates [16]
static const uint8_t	run_value_bits_long [64]
	bits needed to code codebook run value for long windows More...
static const uint8_t	run_value_bits_short [16]
	bits needed to code codebook run value for short windows More...
static const uint8_t	tns_min_sfb_short [16]
static const uint8_t	tns_min_sfb_long [16]
static const uint8_t *const	tns_min_sfb [2]
static const uint8_t *const	run_value_bits [2]
static const uint8_t	aac_cb_out_map [CB_TOT_ALL] = {0,1,2,3,4,5,6,7,8,9,10,11,13,14,15}
	Map to convert values from BandCodingPath index to a codebook index. More...
static const uint8_t	aac_cb_in_map [CB_TOT_ALL+1] = {0,1,2,3,4,5,6,7,8,9,10,11,0,12,13,14}
	Inverse map to convert from codebooks to BandCodingPath indices. More...
static const uint8_t	aac_cb_range [12] = {0, 3, 3, 3, 3, 9, 9, 8, 8, 13, 13, 17}
static const uint8_t	aac_cb_maxval [12] = {0, 1, 1, 2, 2, 4, 4, 7, 7, 12, 12, 16}
static const unsigned char	aac_maxval_cb []
static const int	aacenc_profiles []

Detailed Description

AAC encoder data.

Author

Rostislav Pehlivanov ( atomnuker gmail com )

Definition in file aacenctab.h.

Macro Definition Documentation

CB_TOT

#define CB_TOT   12

Total number of usable codebooks.

Definition at line 34 of file aacenctab.h.

CB_TOT_ALL

#define CB_TOT_ALL   15

Total number of codebooks, including special ones.

Definition at line 37 of file aacenctab.h.

Referenced by codebook_trellis_rate(), and encode_window_bands_info().

AAC_MAX_CHANNELS

#define AAC_MAX_CHANNELS   16

Definition at line 39 of file aacenctab.h.

Referenced by aac_encode_frame(), and aac_encode_init().

Variable Documentation

ff_aac_swb_size_1024

const uint8_t* ff_aac_swb_size_1024[]

Definition at line 99 of file aacenctab.c.

Referenced by aac_encode_init().

ff_aac_swb_size_1024_len

const int ff_aac_swb_size_1024_len

Definition at line 108 of file aacenctab.c.

Referenced by aac_encode_init().

ff_aac_swb_size_128

const uint8_t* ff_aac_swb_size_128[]

Definition at line 91 of file aacenctab.c.

Referenced by aac_encode_init().

ff_aac_swb_size_128_len

const int ff_aac_swb_size_128_len

Definition at line 107 of file aacenctab.c.

Referenced by aac_encode_init().

aac_normal_chan_layouts

const int64_t aac_normal_chan_layouts[7]

static

Initial value:

= {
    AV_CH_LAYOUT_MONO,
    AV_CH_LAYOUT_STEREO,
    AV_CH_LAYOUT_SURROUND,
    AV_CH_LAYOUT_4POINT0,
    AV_CH_LAYOUT_5POINT0_BACK,
    AV_CH_LAYOUT_5POINT1_BACK,
    AV_CH_LAYOUT_7POINT1,
}

Definition at line 47 of file aacenctab.h.

Referenced by aac_encode_init().

aac_chan_configs

const uint8_t aac_chan_configs[AAC_MAX_CHANNELS][6]

static

Initial value:

= {
    {1, TYPE_SCE},                                         
    {1, TYPE_CPE},                                         
    {2, TYPE_SCE, TYPE_CPE},                               
    {3, TYPE_SCE, TYPE_CPE, TYPE_SCE},                     
    {3, TYPE_SCE, TYPE_CPE, TYPE_CPE},                     
    {4, TYPE_SCE, TYPE_CPE, TYPE_CPE, TYPE_LFE},           
    {0},                                                   
    {5, TYPE_SCE, TYPE_CPE, TYPE_CPE, TYPE_CPE, TYPE_LFE}, 
}

default channel configurations

Definition at line 58 of file aacenctab.h.

Referenced by aac_encode_init().

aac_chan_maps

const uint8_t aac_chan_maps[AAC_MAX_CHANNELS][AAC_MAX_CHANNELS]

static

Initial value:

= {
    { 0 },
    { 0, 1 },
    { 2, 0, 1 },
    { 2, 0, 1, 3 },
    { 2, 0, 1, 3, 4 },
    { 2, 0, 1, 4, 5, 3 },
    { 0 },
    { 2, 0, 1, 6, 7, 4, 5, 3 },
}

Table to remap channels from libavcodec's default order to AAC order.

Definition at line 72 of file aacenctab.h.

Referenced by aac_encode_init().

mpeg4audio_sample_rates

const int mpeg4audio_sample_rates[16]

static

Initial value:

= {
    96000, 88200, 64000, 48000, 44100, 32000,
    24000, 22050, 16000, 12000, 11025, 8000, 7350
}

Definition at line 85 of file aacenctab.h.

Referenced by flv_write_codec_header().

run_value_bits_long

const uint8_t run_value_bits_long[64]

static

Initial value:

= {
     5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,
     5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5, 10,
    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 15
}

bits needed to code codebook run value for long windows

Definition at line 91 of file aacenctab.h.

run_value_bits_short

const uint8_t run_value_bits_short[16]

static

Initial value:

= {
    3, 3, 3, 3, 3, 3, 3, 6, 6, 6, 6, 6, 6, 6, 6, 9
}

bits needed to code codebook run value for short windows

Definition at line 99 of file aacenctab.h.

tns_min_sfb_short

const uint8_t tns_min_sfb_short[16]

static

Initial value:

= {
    2, 2, 2, 3, 3, 4, 6, 6, 8, 10, 10, 12, 12, 12, 12, 12
}

Definition at line 104 of file aacenctab.h.

tns_min_sfb_long

const uint8_t tns_min_sfb_long[16]

static

Initial value:

= {
    12, 13, 15, 16, 17, 20, 25, 26, 24, 28, 30, 31, 31, 31, 31, 31
}

Definition at line 108 of file aacenctab.h.

tns_min_sfb

const uint8_t* const tns_min_sfb[2]

static

Initial value:

= {
    tns_min_sfb_long, tns_min_sfb_short
}

Definition at line 112 of file aacenctab.h.

Referenced by ff_aac_search_for_tns().

run_value_bits

const uint8_t* const run_value_bits[2]

static

Initial value:

= {
    run_value_bits_long, run_value_bits_short
}

Definition at line 116 of file aacenctab.h.

Referenced by codebook_trellis_rate(), and encode_window_bands_info().

aac_cb_out_map

const uint8_t aac_cb_out_map[CB_TOT_ALL] = {0,1,2,3,4,5,6,7,8,9,10,11,13,14,15}

static

Map to convert values from BandCodingPath index to a codebook index.

Definition at line 121 of file aacenctab.h.

Referenced by codebook_trellis_rate(), and encode_window_bands_info().

aac_cb_in_map

const uint8_t aac_cb_in_map[CB_TOT_ALL+1] = {0,1,2,3,4,5,6,7,8,9,10,11,0,12,13,14}

static

Inverse map to convert from codebooks to BandCodingPath indices.

Definition at line 123 of file aacenctab.h.

Referenced by codebook_trellis_rate(), and encode_window_bands_info().

aac_cb_range

const uint8_t aac_cb_range[12] = {0, 3, 3, 3, 3, 9, 9, 8, 8, 13, 13, 17}

static

Definition at line 125 of file aacenctab.h.

Referenced by quantize_and_encode_band_cost_template().

aac_cb_maxval

const uint8_t aac_cb_maxval[12] = {0, 1, 1, 2, 2, 4, 4, 7, 7, 12, 12, 16}

static

Definition at line 126 of file aacenctab.h.

Referenced by quantize_and_encode_band_cost_template().

aac_maxval_cb

const unsigned char aac_maxval_cb[]

static

Initial value:

= {
    0, 1, 3, 5, 5, 7, 7, 7, 9, 9, 9, 9, 9, 11
}

Definition at line 128 of file aacenctab.h.

Referenced by find_min_book().

aacenc_profiles

const int aacenc_profiles[]

static

Initial value:

= {
    FF_PROFILE_AAC_MAIN,
    FF_PROFILE_AAC_LOW,
    FF_PROFILE_AAC_LTP,
    FF_PROFILE_MPEG2_AAC_LOW,
}

Definition at line 132 of file aacenctab.h.

Referenced by aac_encode_init().