FFmpeg: AACContext Struct Reference

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Data Fields

AACContext Struct Reference

main AAC context More...

#include <aac.h>

Data Fields

AVClass * class

AVCodecContext * avctx

AVFrame * frame

int is_saved

Set if elements have stored overlap from previous frame. More...

DynamicRangeControl che_drc

INTFLOAT temp [128]

OutputConfiguration oc [2]

int warned_num_aac_frames

void(* imdct_and_windowing )(AACContext *ac, SingleChannelElement *sce)

void(* apply_ltp )(AACContext *ac, SingleChannelElement *sce)

void(* apply_tns )(INTFLOAT coef[1024], TemporalNoiseShaping *tns, IndividualChannelStream *ics, int decode)

void(* windowing_and_mdct_ltp )(AACContext *ac, INTFLOAT *out, INTFLOAT *in, IndividualChannelStream *ics)

void(* update_ltp )(AACContext *ac, SingleChannelElement *sce)

void(* vector_pow43 )(int *coefs, int len)

void(* subband_scale )(int *dst, int *src, int scale, int offset, int len)

const AVClass * class

HANDLE_AACENCODER handle

int afterburner

int eld_sbr

int signaling

int latm

int header_period

int vbr

AudioFrameQueue afq

Channel element related data

ChannelElement * che [4][MAX_ELEM_ID]

ChannelElement * tag_che_map [4][MAX_ELEM_ID]

int tags_mapped

int warned_remapping_once

temporary aligned temporary buffers

(We do not want to have these on the stack.)

INTFLOAT buf_mdct [1024]

Computed / set up during initialization

FFTContext mdct

FFTContext mdct_small

FFTContext mdct_ld

FFTContext mdct_ltp

MDCT15Context * mdct480

AVFloatDSPContext * fdsp

int random_state

Members used for output

SingleChannelElement * output_element [MAX_CHANNELS]

Points to each SingleChannelElement. More...

Japanese DTV specific extension

int force_dmono_mode

0->not dmono, 1->use first channel, 2->use second channel More...

int dmono_mode

0->not dmono, 1->use first channel, 2->use second channel More...

Detailed Description

main AAC context

Definition at line 293 of file aac.h.

Field Documentation

AVClass* AACContext::class

Definition at line 294 of file aac.h.

AVCodecContext* AACContext::avctx

Definition at line 295 of file aac.h.

Referenced by aac_decode_er_frame(), aac_decode_frame(), aac_decode_frame_int(), aac_decode_init(), apply_dependent_coupling(), apply_dependent_coupling_fixed(), che_configure(), decode_band_types(), decode_cpe(), decode_extension_payload(), decode_fill(), decode_ics(), decode_ics_info(), decode_prediction(), decode_scalefactors(), decode_spectrum_and_dequant(), decode_tns(), get_che(), latm_decode_audio_specific_config(), latm_decode_frame(), output_configure(), parse_adts_frame_header(), pop_output_configuration(), read_audio_mux_element(), read_sbr_data(), read_sbr_envelope(), read_sbr_extension(), read_sbr_grid(), read_sbr_noise(), read_stream_mux_config(), sbr_hf_calc_npatches(), sbr_hf_gen(), sbr_make_f_derived(), sbr_make_f_master(), sbr_mapping(), sbr_reset(), skip_data_stream_element(), and spectral_to_sample().

AVFrame* AACContext::frame

Definition at line 296 of file aac.h.

Referenced by aac_decode_er_frame(), aac_decode_frame_int(), and frame_configure_elements().

int AACContext::is_saved

Set if elements have stored overlap from previous frame.

Definition at line 298 of file aac.h.

DynamicRangeControl AACContext::che_drc

Definition at line 299 of file aac.h.

Referenced by decode_extension_payload().

ChannelElement* AACContext::che[4][MAX_ELEM_ID]

Definition at line 305 of file aac.h.

Referenced by aac_decode_close(), apply_channel_coupling(), che_configure(), flush(), frame_configure_elements(), get_che(), output_configure(), and spectral_to_sample().

ChannelElement* AACContext::tag_che_map[4][MAX_ELEM_ID]

Definition at line 306 of file aac.h.

Referenced by get_che(), and output_configure().

int AACContext::tags_mapped

Definition at line 307 of file aac.h.

Referenced by aac_decode_er_frame(), aac_decode_frame_int(), and get_che().

int AACContext::warned_remapping_once

Definition at line 308 of file aac.h.

Referenced by get_che().

INTFLOAT AACContext::buf_mdct[1024]

Definition at line 316 of file aac.h.

Referenced by apply_ltp(), imdct_and_windowing(), imdct_and_windowing_eld(), imdct_and_windowing_ld(), and update_ltp().

FFTContext AACContext::mdct

Definition at line 323 of file aac.h.

Referenced by aac_decode_close(), aac_decode_init(), imdct_and_windowing(), imdct_and_windowing_eld(), and imdct_and_windowing_ld().

FFTContext AACContext::mdct_small

Definition at line 324 of file aac.h.

Referenced by aac_decode_close(), aac_decode_init(), and imdct_and_windowing().

FFTContext AACContext::mdct_ld

Definition at line 325 of file aac.h.

Referenced by aac_decode_close(), aac_decode_init(), imdct_and_windowing_eld(), and imdct_and_windowing_ld().

FFTContext AACContext::mdct_ltp

Definition at line 326 of file aac.h.

Referenced by aac_decode_close(), aac_decode_init(), and windowing_and_mdct_ltp().

MDCT15Context* AACContext::mdct480

Definition at line 330 of file aac.h.

Referenced by aac_decode_close(), aac_decode_init(), and imdct_and_windowing_eld().

AVFloatDSPContext* AACContext::fdsp

Definition at line 331 of file aac.h.

Referenced by aac_decode_close(), aac_decode_init(), apply_intensity_stereo(), apply_mid_side_stereo(), decode_spectrum_and_dequant(), imdct_and_windowing(), imdct_and_windowing_ld(), update_ltp(), and windowing_and_mdct_ltp().

int AACContext::random_state

Definition at line 333 of file aac.h.

Referenced by aac_decode_init(), and decode_spectrum_and_dequant().

SingleChannelElement* AACContext::output_element[MAX_CHANNELS]

Points to each SingleChannelElement.

Definition at line 340 of file aac.h.

Referenced by che_configure(), and frame_configure_elements().

int AACContext::force_dmono_mode

0->not dmono, 1->use first channel, 2->use second channel

Definition at line 348 of file aac.h.

Referenced by aac_decode_frame().

int AACContext::dmono_mode

0->not dmono, 1->use first channel, 2->use second channel

Definition at line 349 of file aac.h.

Referenced by aac_decode_frame(), aac_decode_frame_int(), and parse_adts_frame_header().

INTFLOAT AACContext::temp[128]

Definition at line 352 of file aac.h.

Referenced by imdct_and_windowing().

OutputConfiguration AACContext::oc[2]

Definition at line 354 of file aac.h.

Referenced by aac_decode_er_frame(), aac_decode_frame(), aac_decode_frame_int(), aac_decode_init(), apply_dependent_coupling(), apply_dependent_coupling_fixed(), apply_independent_coupling(), apply_independent_coupling_fixed(), apply_prediction(), che_configure(), decode_cpe(), decode_extension_payload(), decode_ics(), decode_ics_info(), decode_prediction(), decode_tns(), get_che(), imdct_and_windowing_eld(), latm_decode_audio_specific_config(), latm_decode_frame(), output_configure(), parse_adts_frame_header(), pop_output_configuration(), push_output_configuration(), read_sbr_extension(), and spectral_to_sample().

int AACContext::warned_num_aac_frames

Definition at line 355 of file aac.h.

Referenced by parse_adts_frame_header().

void(* AACContext::imdct_and_windowing)(AACContext *ac, SingleChannelElement *sce)

Definition at line 358 of file aac.h.

Referenced by aacdec_init(), ff_aacdec_init_mips(), and spectral_to_sample().

void(* AACContext::apply_ltp)(AACContext *ac, SingleChannelElement *sce)

Definition at line 359 of file aac.h.

Referenced by aacdec_init(), ff_aacdec_init_mips(), and spectral_to_sample().

void(* AACContext::apply_tns)(INTFLOAT coef[1024], TemporalNoiseShaping *tns, IndividualChannelStream *ics, int decode)

Definition at line 360 of file aac.h.

Referenced by aacdec_init(), apply_ltp(), and spectral_to_sample().

void(* AACContext::windowing_and_mdct_ltp)(AACContext *ac, INTFLOAT *out, INTFLOAT *in, IndividualChannelStream *ics)

Definition at line 362 of file aac.h.

Referenced by aacdec_init(), and apply_ltp().

void(* AACContext::update_ltp)(AACContext *ac, SingleChannelElement *sce)

Definition at line 364 of file aac.h.

Referenced by aacdec_init(), ff_aacdec_init_mips(), and spectral_to_sample().

void(* AACContext::vector_pow43)(int *coefs, int len)

Definition at line 365 of file aac.h.

Referenced by aacdec_init(), and decode_spectrum_and_dequant().

void(* AACContext::subband_scale)(int *dst, int *src, int scale, int offset, int len)

Definition at line 366 of file aac.h.

Referenced by aacdec_init(), apply_intensity_stereo(), and decode_spectrum_and_dequant().

const AVClass* AACContext::class

Definition at line 30 of file libfdk-aacenc.c.

HANDLE_AACENCODER AACContext::handle

Definition at line 31 of file libfdk-aacenc.c.

Referenced by aac_encode_close(), aac_encode_frame(), and aac_encode_init().

int AACContext::afterburner

Definition at line 32 of file libfdk-aacenc.c.

Referenced by aac_encode_init().

int AACContext::eld_sbr

Definition at line 33 of file libfdk-aacenc.c.

Referenced by aac_encode_init().

int AACContext::signaling

Definition at line 34 of file libfdk-aacenc.c.

Referenced by aac_encode_init().

int AACContext::latm

Definition at line 35 of file libfdk-aacenc.c.

Referenced by aac_encode_init().

int AACContext::header_period

Definition at line 36 of file libfdk-aacenc.c.

Referenced by aac_encode_init().

int AACContext::vbr

Definition at line 37 of file libfdk-aacenc.c.

Referenced by aac_encode_init().

AudioFrameQueue AACContext::afq

Definition at line 39 of file libfdk-aacenc.c.

Referenced by aac_encode_close(), aac_encode_frame(), and aac_encode_init().

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

libavcodec/aac.h
libavcodec/libfdk-aacenc.c

Generated on Fri Jan 12 2018 01:46:21 for FFmpeg by doxygen 1.8.6