ChannelElement Struct Reference

channel element - generic struct for SCE/CPE/CCE/LFE More...

#include <aacdec.h>

Data Fields
int	present
uint8_t	ms_mask [128]
	Set if mid/side stereo is used for each scalefactor window band. More...
SingleChannelElement	ch [2]
ChannelCoupling	coup
SpectralBandReplication	sbr
int	common_window
	Set if channels share a common 'IndividualChannelStream' in bitstream. More...
int	ms_mode
	Signals mid/side stereo flags coding mode. More...
uint8_t	is_mode
	Set if any bands have been encoded using intensity stereo. More...
uint8_t	is_mask [128]
	Set if intensity stereo is used. More...

Detailed Description

channel element - generic struct for SCE/CPE/CCE/LFE

Definition at line 148 of file aacdec.h.

Field Documentation

present

int ChannelElement::present

Definition at line 149 of file aacdec.h.

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

ms_mask

uint8_t ChannelElement::ms_mask

Set if mid/side stereo is used for each scalefactor window band.

Definition at line 151 of file aacdec.h.

Referenced by aac_encode_frame(), adjust_frame_information(), apply_intensity_stereo(), apply_mid_side_stereo(), decode_mid_side_stereo(), encode_ms_info(), ff_aac_search_for_is(), and search_for_ms().

ch

SingleChannelElement ChannelElement::ch

Definition at line 153 of file aacdec.h.

Referenced by aac_decode_er_frame(), aac_decode_frame_int(), aac_encode_frame(), adjust_frame_information(), apply_channel_coupling(), apply_dependent_coupling(), apply_dependent_coupling_fixed(), apply_independent_coupling(), apply_independent_coupling_fixed(), apply_intensity_stereo(), apply_mid_side_stereo(), che_configure(), decode_cce(), decode_cpe(), decode_mid_side_stereo(), encode_ms_info(), ff_aac_adjust_common_ltp(), ff_aac_adjust_common_pred(), ff_aac_ltp_insert_new_frame(), ff_aac_search_for_is(), flush(), frame_configure_elements(), search_for_ms(), and spectral_to_sample().

coup

ChannelCoupling ChannelElement::coup

Definition at line 155 of file aacdec.h.

Referenced by apply_channel_coupling(), apply_dependent_coupling(), apply_dependent_coupling_fixed(), apply_independent_coupling(), apply_independent_coupling_fixed(), decode_cce(), and spectral_to_sample().

sbr

SpectralBandReplication ChannelElement::sbr

Definition at line 156 of file aacdec.h.

Referenced by aac_decode_close(), che_configure(), decode_extension_payload(), and spectral_to_sample().

common_window

int ChannelElement::common_window

Set if channels share a common 'IndividualChannelStream' in bitstream.

Definition at line 138 of file aacenc.h.

Referenced by aac_encode_frame(), adjust_frame_information(), apply_intensity_stereo(), apply_mid_side_stereo(), ff_aac_adjust_common_ltp(), ff_aac_adjust_common_pred(), ff_aac_search_for_is(), and search_for_ms().

ms_mode

int ChannelElement::ms_mode

Signals mid/side stereo flags coding mode.

Definition at line 139 of file aacenc.h.

Referenced by aac_encode_frame(), adjust_frame_information(), and encode_ms_info().

is_mode

uint8_t ChannelElement::is_mode

Set if any bands have been encoded using intensity stereo.

Definition at line 140 of file aacenc.h.

Referenced by aac_encode_frame(), and ff_aac_search_for_is().

is_mask

uint8_t ChannelElement::is_mask[128]

Set if intensity stereo is used.

Definition at line 142 of file aacenc.h.

Referenced by aac_encode_frame(), apply_intensity_stereo(), apply_mid_side_stereo(), ff_aac_search_for_is(), and search_for_ms().

---

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

• libavcodec/aacdec.h
• libavcodec/aacenc.h