FFmpeg
Data Fields
SingleChannelElement Struct Reference

Single Channel Element - used for both SCE and LFE elements. More...

#include <aac.h>

Data Fields

IndividualChannelStream ics
 
TemporalNoiseShaping tns
 
Pulse pulse
 
enum BandType band_type [128]
 band types More...
 
enum BandType band_alt [128]
 alternative band type (used by encoder) More...
 
int band_type_run_end [120]
 band type run end points More...
 
INTFLOAT sf [120]
 scalefactors More...
 
int sf_idx [128]
 scalefactor indices (used by encoder) More...
 
uint8_t zeroes [128]
 band is not coded (used by encoder) More...
 
uint8_t can_pns [128]
 band is allowed to PNS (informative) More...
 
float is_ener [128]
 Intensity stereo pos (used by encoder) More...
 
float pns_ener [128]
 Noise energy values (used by encoder) More...
 
INTFLOAT pcoeffs [1024]
 coefficients for IMDCT, pristine More...
 
INTFLOAT coeffs [1024]
 coefficients for IMDCT, maybe processed More...
 
INTFLOAT saved [1536]
 overlap More...
 
INTFLOAT ret_buf [2048]
 PCM output buffer. More...
 
INTFLOAT ltp_state [3072]
 time signal for LTP More...
 
AAC_FLOAT lcoeffs [1024]
 MDCT of LTP coefficients (used by encoder) More...
 
AAC_FLOAT prcoeffs [1024]
 Main prediction coefs (used by encoder) More...
 
PredictorState predictor_state [MAX_PREDICTORS]
 
INTFLOATret
 PCM output. More...
 

Detailed Description

Single Channel Element - used for both SCE and LFE elements.

Definition at line 248 of file aac.h.

Field Documentation

IndividualChannelStream SingleChannelElement::ics
TemporalNoiseShaping SingleChannelElement::tns
Pulse SingleChannelElement::pulse

Definition at line 251 of file aac.h.

Referenced by adjust_frame_information(), and encode_individual_channel().

enum BandType SingleChannelElement::band_type[128]
enum BandType SingleChannelElement::band_alt[128]

alternative band type (used by encoder)

Definition at line 253 of file aac.h.

Referenced by ff_aac_search_for_pred(), mark_pns(), and search_for_pns().

int SingleChannelElement::band_type_run_end[120]

band type run end points

Definition at line 254 of file aac.h.

Referenced by apply_intensity_stereo(), and decode_ics().

INTFLOAT SingleChannelElement::sf[120]

scalefactors

Definition at line 255 of file aac.h.

Referenced by apply_intensity_stereo(), and decode_ics().

int SingleChannelElement::sf_idx[128]
uint8_t SingleChannelElement::zeroes[128]
uint8_t SingleChannelElement::can_pns[128]

band is allowed to PNS (informative)

Definition at line 258 of file aac.h.

Referenced by ff_pns_bits(), mark_pns(), and search_for_quantizers_twoloop().

float SingleChannelElement::is_ener[128]

Intensity stereo pos (used by encoder)

Definition at line 259 of file aac.h.

Referenced by apply_intensity_stereo(), ff_aac_search_for_is(), and set_special_band_scalefactors().

float SingleChannelElement::pns_ener[128]

Noise energy values (used by encoder)

Definition at line 260 of file aac.h.

Referenced by mark_pns(), search_for_pns(), and set_special_band_scalefactors().

INTFLOAT SingleChannelElement::pcoeffs[1024]

coefficients for IMDCT, pristine

Definition at line 261 of file aac.h.

Referenced by aac_encode_frame(), apply_window_and_mdct(), ff_aac_adjust_common_pred(), ff_aac_apply_tns(), and ff_aac_is_encoding_err().

INTFLOAT SingleChannelElement::coeffs[1024]
INTFLOAT SingleChannelElement::saved[1536]
INTFLOAT SingleChannelElement::ret_buf[2048]

PCM output buffer.

Definition at line 264 of file aac.h.

Referenced by aac_encode_frame(), apply_window_and_mdct(), ff_aac_ltp_insert_new_frame(), and frame_configure_elements().

INTFLOAT SingleChannelElement::ltp_state[3072]

time signal for LTP

Definition at line 265 of file aac.h.

Referenced by aac_encode_frame(), apply_ltp(), ff_aac_ltp_insert_new_frame(), ff_aac_search_for_ltp(), ff_aac_update_ltp(), and update_ltp().

AAC_FLOAT SingleChannelElement::lcoeffs[1024]

MDCT of LTP coefficients (used by encoder)

Definition at line 266 of file aac.h.

Referenced by aac_encode_frame(), and ff_aac_search_for_ltp().

AAC_FLOAT SingleChannelElement::prcoeffs[1024]

Main prediction coefs (used by encoder)

Definition at line 267 of file aac.h.

Referenced by ff_aac_apply_main_pred(), and ff_aac_search_for_pred().

PredictorState SingleChannelElement::predictor_state[MAX_PREDICTORS]
INTFLOAT* SingleChannelElement::ret

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