class for AVOptions

Definition at line 71 of file ac3dec.h.

parent context

Definition at line 72 of file ac3dec.h.

Referenced by ac3_decode_init(), ac3_decode_transform_coeffs_ch(), coupling_coordinates(), coupling_strategy(), decode_audio_block(), decode_exponents(), ff_eac3_decode_transform_coeffs_aht_ch(), ff_eac3_parse_header(), parse_frame_header(), and spx_strategy().

bitstream reader

Definition at line 73 of file ac3dec.h.

Referenced by ac3_decode_frame(), ac3_decode_transform_coeffs_ch(), ac3_parse_header(), coupling_coordinates(), coupling_strategy(), decode_audio_block(), ff_eac3_decode_transform_coeffs_aht_ch(), ff_eac3_parse_header(), parse_frame_header(), spx_coordinates(), and spx_strategy().

frame type (strmtyp)

Definition at line 77 of file ac3dec.h.

Referenced by ac3_decode_frame(), decode_audio_block(), ff_eac3_parse_header(), and parse_frame_header().

substream identification

Definition at line 78 of file ac3dec.h.

Referenced by ac3_decode_frame(), ff_eac3_parse_header(), and parse_frame_header().

current frame size, in bytes

Definition at line 79 of file ac3dec.h.

Referenced by ac3_decode_frame(), ff_eac3_parse_header(), and parse_frame_header().

stream bit rate, in bits-per-second

Definition at line 80 of file ac3dec.h.

Referenced by ac3_decode_frame(), and parse_frame_header().

sample frequency, in Hz

Definition at line 81 of file ac3dec.h.

Referenced by ac3_decode_frame(), and parse_frame_header().

number of audio blocks

Definition at line 82 of file ac3dec.h.

Referenced by ac3_decode_frame(), ff_eac3_parse_header(), and parse_frame_header().

bitstream id (bsid)

Definition at line 83 of file ac3dec.h.

Referenced by ac3_parse_header(), and parse_frame_header().

bitstream mode (bsmod)

Definition at line 84 of file ac3dec.h.

Referenced by ac3_decode_frame(), ff_eac3_parse_header(), and parse_frame_header().

channel mode (acmod)

Definition at line 85 of file ac3dec.h.

Referenced by ac3_decode_frame(), ac3_parse_header(), ac3_upmix_delay(), coupling_coordinates(), coupling_strategy(), decode_audio_block(), ff_eac3_parse_header(), parse_frame_header(), set_downmix_coeffs(), and spx_strategy().

lfe channel in use

Definition at line 86 of file ac3dec.h.

Referenced by ac3_decode_frame(), ff_eac3_parse_header(), and parse_frame_header().

dialog level in dBFS (dialnorm)

Definition at line 87 of file ac3dec.h.

Referenced by ac3_parse_header(), and ff_eac3_parse_header().

compression field is valid for frame (compre)

Definition at line 88 of file ac3dec.h.

Referenced by ac3_parse_header(), decode_audio_block(), and ff_eac3_parse_header().

gain to apply for heavy compression (compr)

Definition at line 89 of file ac3dec.h.

custom channel map

Definition at line 90 of file ac3dec.h.

Preferred 2-channel downmix mode (dmixmod)

Definition at line 91 of file ac3dec.h.

Referenced by ac3_decode_frame(), ac3_parse_header(), ff_eac3_parse_header(), and parse_frame_header().

Center mix level index.

Definition at line 92 of file ac3dec.h.

Referenced by ac3_parse_header(), ff_eac3_parse_header(), and parse_frame_header().

Center mix level index for Lt/Rt (ltrtcmixlev)

Definition at line 93 of file ac3dec.h.

Referenced by ac3_parse_header(), ff_eac3_parse_header(), and parse_frame_header().

Surround mix level index.

Definition at line 94 of file ac3dec.h.

Referenced by ac3_decode_frame(), ac3_parse_header(), ff_eac3_parse_header(), parse_frame_header(), and set_downmix_coeffs().

Surround mix level index for Lt/Rt (ltrtsurmixlev)

Definition at line 95 of file ac3dec.h.

Referenced by ac3_decode_frame(), ac3_parse_header(), ff_eac3_parse_header(), and parse_frame_header().

indicates if lfemixlevcod is specified (lfemixlevcode)

Definition at line 96 of file ac3dec.h.

Referenced by ac3_decode_frame(), ff_eac3_parse_header(), and parse_frame_header().

LFE mix level index (lfemixlevcod)

Definition at line 97 of file ac3dec.h.

Referenced by ac3_decode_frame(), and ff_eac3_parse_header().

indicates if current frame is E-AC-3

Definition at line 98 of file ac3dec.h.

Referenced by coupling_coordinates(), coupling_strategy(), decode_audio_block(), parse_frame_header(), and spx_strategy().

bitstream has E-AC-3 dependent frame(s)

Definition at line 99 of file ac3dec.h.

Referenced by ff_eac3_parse_header().

bitstream has E-AC-3 additional substream(s)

Definition at line 100 of file ac3dec.h.

Referenced by ff_eac3_parse_header().

dolby surround mode (dsurmod)

Definition at line 101 of file ac3dec.h.

Referenced by ac3_decode_frame(), ff_eac3_parse_header(), and parse_frame_header().

dolby surround ex mode (dsurexmod)

Definition at line 102 of file ac3dec.h.

Referenced by ac3_decode_frame(), ac3_parse_header(), ff_eac3_parse_header(), and parse_frame_header().

dolby headphone mode (dheadphonmod)

Definition at line 103 of file ac3dec.h.

Referenced by ac3_decode_frame(), ac3_parse_header(), ff_eac3_parse_header(), and parse_frame_header().

Definition at line 106 of file ac3dec.h.

Definition at line 107 of file ac3dec.h.

Referenced by ac3_decode_frame().

Definition at line 108 of file ac3dec.h.

Referenced by ac3_decode_frame().

Definition at line 109 of file ac3dec.h.

Referenced by ac3_decode_frame().

Definition at line 110 of file ac3dec.h.

Referenced by ac3_decode_frame().

target level in dBFS

Definition at line 111 of file ac3dec.h.

Referenced by ac3_parse_header(), decode_audio_block(), and ff_eac3_parse_header().

Definition at line 112 of file ac3dec.h.

Referenced by ac3_parse_header(), decode_audio_block(), and ff_eac3_parse_header().

SNR offset strategy (snroffststr)

Definition at line 115 of file ac3dec.h.

Referenced by decode_audio_block(), ff_eac3_parse_header(), and parse_frame_header().

block switch syntax enabled (blkswe)

Definition at line 116 of file ac3dec.h.

Referenced by decode_audio_block(), ff_eac3_parse_header(), and parse_frame_header().

dither flag syntax enabled (dithflage)

Definition at line 117 of file ac3dec.h.

Referenced by decode_audio_block(), ff_eac3_parse_header(), and parse_frame_header().

bit allocation model syntax enabled (bamode)

Definition at line 118 of file ac3dec.h.

Referenced by decode_audio_block(), ff_eac3_parse_header(), and parse_frame_header().

fast gain codes enabled (frmfgaincode)

Definition at line 119 of file ac3dec.h.

Referenced by decode_audio_block(), ff_eac3_parse_header(), and parse_frame_header().

delta bit allocation syntax enabled (dbaflde)

Definition at line 120 of file ac3dec.h.

Referenced by decode_audio_block(), ff_eac3_parse_header(), and parse_frame_header().

skip field syntax enabled (skipflde)

Definition at line 121 of file ac3dec.h.

Referenced by decode_audio_block(), ff_eac3_parse_header(), and parse_frame_header().

coupling in use (cplinu)

Definition at line 125 of file ac3dec.h.

Referenced by coupling_strategy(), decode_audio_block(), and ff_eac3_parse_header().

coupling strategy exists (cplstre)

Definition at line 126 of file ac3dec.h.

Referenced by decode_audio_block(), and ff_eac3_parse_header().

channel in coupling (chincpl)

Definition at line 127 of file ac3dec.h.

Referenced by calc_transform_coeffs_cpl(), coupling_coordinates(), coupling_strategy(), decode_audio_block(), decode_transform_coeffs(), parse_frame_header(), and remove_dithering().

phase flags in use (phsflginu)

Definition at line 128 of file ac3dec.h.

Referenced by coupling_coordinates(), and coupling_strategy().

phase flags (phsflg)

Definition at line 129 of file ac3dec.h.

Referenced by calc_transform_coeffs_cpl(), and coupling_coordinates().

number of coupling bands (ncplbnd)

Definition at line 130 of file ac3dec.h.

Referenced by calc_transform_coeffs_cpl(), coupling_coordinates(), and coupling_strategy().

Definition at line 131 of file ac3dec.h.

Referenced by coupling_strategy().

number of coeffs in each coupling band

Definition at line 132 of file ac3dec.h.

Referenced by calc_transform_coeffs_cpl(), and coupling_strategy().

first channel in coupling

Definition at line 133 of file ac3dec.h.

first coupling coordinates states (firstcplcos)

Definition at line 134 of file ac3dec.h.

Referenced by coupling_coordinates(), coupling_strategy(), and ff_eac3_parse_header().

coupling coordinates (cplco)

Definition at line 135 of file ac3dec.h.

Referenced by calc_transform_coeffs_cpl(), and coupling_coordinates().

spectral extension in use (spxinu)

Definition at line 140 of file ac3dec.h.

Referenced by coupling_strategy(), and decode_audio_block().

channel uses spectral extension (chinspx)

Definition at line 141 of file ac3dec.h.

Referenced by decode_audio_block(), ff_eac3_apply_spectral_extension(), spx_coordinates(), and spx_strategy().

spx attenuation code (spxattencod)

Definition at line 142 of file ac3dec.h.

Referenced by ff_eac3_apply_spectral_extension(), and ff_eac3_parse_header().

spx start frequency bin

Definition at line 143 of file ac3dec.h.

Referenced by coupling_strategy(), decode_audio_block(), ff_eac3_apply_spectral_extension(), spx_coordinates(), and spx_strategy().

spx end frequency bin

Definition at line 144 of file ac3dec.h.

Referenced by spx_coordinates(), and spx_strategy().

spx starting frequency bin for copying (copystartmant) the copy region ends at the start of the spx region.

Definition at line 145 of file ac3dec.h.

Referenced by ff_eac3_apply_spectral_extension(), and spx_strategy().

number of spx bands (nspxbnds)

Definition at line 147 of file ac3dec.h.

Referenced by ff_eac3_apply_spectral_extension(), spx_coordinates(), and spx_strategy().

Definition at line 148 of file ac3dec.h.

Referenced by spx_strategy().

number of bins in each spx band

Definition at line 149 of file ac3dec.h.

Referenced by ff_eac3_apply_spectral_extension(), spx_coordinates(), and spx_strategy().

first spx coordinates states (firstspxcos)

Definition at line 150 of file ac3dec.h.

Referenced by decode_audio_block(), ff_eac3_parse_header(), and spx_coordinates().

spx noise blending factor (nblendfact)

Definition at line 151 of file ac3dec.h.

Referenced by ff_eac3_apply_spectral_extension(), and spx_coordinates().

spx signal blending factor (sblendfact)

Definition at line 152 of file ac3dec.h.

Referenced by ff_eac3_apply_spectral_extension(), and spx_coordinates().

channel AHT in use (chahtinu)

Definition at line 156 of file ac3dec.h.

Referenced by decode_audio_block(), decode_transform_coeffs_ch(), ff_eac3_parse_header(), and parse_frame_header().

pre-IDCT mantissas

Definition at line 157 of file ac3dec.h.

Referenced by decode_transform_coeffs_ch(), and ff_eac3_decode_transform_coeffs_aht_ch().

number of full-bandwidth channels

Definition at line 161 of file ac3dec.h.

Referenced by ac3_decode_frame(), calc_transform_coeffs_cpl(), coupling_coordinates(), coupling_strategy(), decode_audio_block(), ff_eac3_apply_spectral_extension(), ff_eac3_parse_header(), parse_frame_header(), remove_dithering(), set_downmix_coeffs(), spx_coordinates(), and spx_strategy().

number of total channels

Definition at line 162 of file ac3dec.h.

Referenced by ac3_decode_frame(), decode_audio_block(), decode_transform_coeffs(), ff_eac3_parse_header(), and parse_frame_header().

index of LFE channel

Definition at line 163 of file ac3dec.h.

Referenced by decode_audio_block(), ff_eac3_parse_header(), and parse_frame_header().

stereo downmix coefficients

Definition at line 164 of file ac3dec.h.

Referenced by ac3_decode_end(), decode_audio_block(), and set_downmix_coeffs().

indicates if coeffs are currently downmixed

Definition at line 165 of file ac3dec.h.

Referenced by ac3_decode_init(), and decode_audio_block().

output channel configuration

Definition at line 166 of file ac3dec.h.

Referenced by ac3_decode_frame(), decode_audio_block(), and set_downmix_coeffs().

number of output channels

Definition at line 167 of file ac3dec.h.

Referenced by ac3_decode_frame(), and decode_audio_block().

dynamic range

Definition at line 171 of file ac3dec.h.

Referenced by decode_audio_block().

percentage of dynamic range compression to be applied

Definition at line 172 of file ac3dec.h.

apply heavy compression

Definition at line 173 of file ac3dec.h.

Referenced by decode_audio_block().

heavy dynamic range compression

Definition at line 174 of file ac3dec.h.

Referenced by ac3_parse_header(), decode_audio_block(), and ff_eac3_parse_header().

start frequency bin (strtmant)

Definition at line 178 of file ac3dec.h.

Referenced by ac3_decode_transform_coeffs_ch(), calc_transform_coeffs_cpl(), coupling_strategy(), decode_audio_block(), decode_transform_coeffs_ch(), ff_eac3_decode_transform_coeffs_aht_ch(), parse_frame_header(), and remove_dithering().

end frequency bin (endmant)

Definition at line 179 of file ac3dec.h.

Referenced by ac3_decode_transform_coeffs_ch(), coupling_strategy(), decode_audio_block(), decode_transform_coeffs(), do_rematrixing(), and parse_frame_header().

seed noise generation with AC-3 frame on decode

Definition at line 183 of file ac3dec.h.

Referenced by ac3_decode_frame().

number of rematrixing bands (nrematbnd)

Definition at line 187 of file ac3dec.h.

Referenced by decode_audio_block(), and do_rematrixing().

rematrixing flags (rematflg)

Definition at line 188 of file ac3dec.h.

Referenced by decode_audio_block(), and do_rematrixing().

Number of exponent groups (nexpgrp)

Definition at line 192 of file ac3dec.h.

Referenced by decode_audio_block(), and parse_frame_header().

decoded exponents

Definition at line 193 of file ac3dec.h.

Referenced by ac3_decode_transform_coeffs_ch(), decode_audio_block(), and decode_transform_coeffs_ch().

exponent strategies (expstr)

Definition at line 194 of file ac3dec.h.

Referenced by decode_audio_block(), and ff_eac3_parse_header().

bit allocation parameters

Definition at line 198 of file ac3dec.h.

Referenced by decode_audio_block(), ff_eac3_parse_header(), and parse_frame_header().

first coupling leak state (firstcplleak)

Definition at line 199 of file ac3dec.h.

Referenced by coupling_strategy(), decode_audio_block(), ff_eac3_parse_header(), and parse_frame_header().

signal-to-noise ratio offsets (snroffst)

Definition at line 200 of file ac3dec.h.

Referenced by decode_audio_block(), and ff_eac3_parse_header().

fast gain values/SMR's (fgain)

Definition at line 201 of file ac3dec.h.

Referenced by decode_audio_block().

bit allocation pointers

Definition at line 202 of file ac3dec.h.

Referenced by ac3_decode_transform_coeffs_ch(), decode_audio_block(), ff_eac3_decode_transform_coeffs_aht_ch(), and remove_dithering().

scaled exponents

Definition at line 203 of file ac3dec.h.

Referenced by decode_audio_block().

interpolated exponents

Definition at line 204 of file ac3dec.h.

Referenced by decode_audio_block().

masking curve values

Definition at line 205 of file ac3dec.h.

Referenced by decode_audio_block().

delta bit allocation mode

Definition at line 206 of file ac3dec.h.

Referenced by decode_audio_block().

number of delta segments

Definition at line 207 of file ac3dec.h.

Referenced by decode_audio_block().

delta segment offsets

Definition at line 208 of file ac3dec.h.

Referenced by decode_audio_block().

delta segment lengths

Definition at line 209 of file ac3dec.h.

Referenced by decode_audio_block().

delta values for each segment

Definition at line 210 of file ac3dec.h.

Referenced by decode_audio_block().

dither flags (dithflg)

Definition at line 214 of file ac3dec.h.

Referenced by ac3_decode_transform_coeffs_ch(), decode_audio_block(), ff_eac3_parse_header(), and remove_dithering().

for dither generation

Definition at line 215 of file ac3dec.h.

Referenced by ac3_decode_frame(), ac3_decode_init(), ac3_decode_transform_coeffs_ch(), ff_eac3_apply_spectral_extension(), and ff_eac3_decode_transform_coeffs_aht_ch().

block switch flags (blksw)

Definition at line 219 of file ac3dec.h.

Referenced by decode_audio_block(), do_imdct(), and ff_eac3_parse_header().

for 512 sample IMDCT

Definition at line 220 of file ac3dec.h.

Referenced by ac3_decode_end(), ac3_decode_init(), and do_imdct().

for 256 sample IMDCT

Definition at line 221 of file ac3dec.h.

Referenced by ac3_decode_end(), ac3_decode_init(), and do_imdct().

Definition at line 225 of file ac3dec.h.

Referenced by ac3_decode_frame(), and ac3_decode_init().

Definition at line 229 of file ac3dec.h.

Referenced by ac3_decode_end(), ac3_decode_init(), and do_imdct().

Definition at line 231 of file ac3dec.h.

Referenced by ac3_decode_init(), and decode_audio_block().

optimized conversion functions

Definition at line 232 of file ac3dec.h.

Referenced by ac3_decode_init(), and decode_audio_block().

Definition at line 235 of file ac3dec.h.

Referenced by ac3_decode_frame(), decode_audio_block(), and do_imdct().

Definition at line 236 of file ac3dec.h.

Referenced by ac3_decode_init(), and decode_audio_block().

Definition at line 237 of file ac3dec.h.

Referenced by ac3_decode_init(), and decode_audio_block().

fixed-point transform coefficients

Definition at line 240 of file ac3dec.h.

Referenced by ac3_decode_transform_coeffs_ch(), calc_transform_coeffs_cpl(), decode_audio_block(), decode_transform_coeffs(), decode_transform_coeffs_ch(), do_rematrixing(), and remove_dithering().

transform coefficients

Definition at line 241 of file ac3dec.h.

Referenced by ac3_decode_init(), decode_audio_block(), do_imdct(), and ff_eac3_apply_spectral_extension().

delay - added to the next block

Definition at line 242 of file ac3dec.h.

Referenced by ac3_decode_init(), ac3_upmix_delay(), and do_imdct().

window coefficients

Definition at line 243 of file ac3dec.h.

Referenced by ac3_decode_init(), and do_imdct().

temporary storage for output before windowing

Definition at line 244 of file ac3dec.h.

Referenced by do_imdct().

output after imdct transform and windowing

Definition at line 245 of file ac3dec.h.

Referenced by ac3_decode_frame().

temp buffer to prevent overread

Definition at line 246 of file ac3dec.h.

Referenced by ac3_decode_frame().