DynamicRangeControl Struct Reference

Dynamic Range Control - decoded from the bitstream but not processed further. More...

#include <aac.h>

Data Fields
int	pce_instance_tag
	Indicates with which program the DRC info is associated. More...
int	dyn_rng_sgn [17]
	DRC sign information; 0 - positive, 1 - negative. More...
int	dyn_rng_ctl [17]
	DRC magnitude information. More...
int	exclude_mask [MAX_CHANNELS]
	Channels to be excluded from DRC processing. More...
int	band_incr
	Number of DRC bands greater than 1 having DRC info. More...
int	interpolation_scheme
	Indicates the interpolation scheme used in the SBR QMF domain. More...
int	band_top [17]
	Indicates the top of the i-th DRC band in units of 4 spectral lines. More...
int	prog_ref_level
	A reference level for the long-term program audio level for all channels combined. More...

Detailed Description

Dynamic Range Control - decoded from the bitstream but not processed further.

Definition at line 209 of file aac.h.

Field Documentation

pce_instance_tag

int DynamicRangeControl::pce_instance_tag

Indicates with which program the DRC info is associated.

Definition at line 210 of file aac.h.

Referenced by decode_dynamic_range().

dyn_rng_sgn

int DynamicRangeControl::dyn_rng_sgn[17]

DRC sign information; 0 - positive, 1 - negative.

Definition at line 211 of file aac.h.

Referenced by decode_dynamic_range().

dyn_rng_ctl

int DynamicRangeControl::dyn_rng_ctl[17]

DRC magnitude information.

Definition at line 212 of file aac.h.

Referenced by decode_dynamic_range().

exclude_mask

int DynamicRangeControl::exclude_mask[MAX_CHANNELS]

Channels to be excluded from DRC processing.

Definition at line 213 of file aac.h.

Referenced by decode_drc_channel_exclusions().

band_incr

int DynamicRangeControl::band_incr

Number of DRC bands greater than 1 having DRC info.

Definition at line 214 of file aac.h.

Referenced by decode_dynamic_range().

interpolation_scheme

int DynamicRangeControl::interpolation_scheme

Indicates the interpolation scheme used in the SBR QMF domain.

Definition at line 215 of file aac.h.

Referenced by decode_dynamic_range().

band_top

int DynamicRangeControl::band_top[17]

Indicates the top of the i-th DRC band in units of 4 spectral lines.

Definition at line 216 of file aac.h.

Referenced by decode_dynamic_range().

prog_ref_level

int DynamicRangeControl::prog_ref_level

A reference level for the long-term program audio level for all channels combined.

Definition at line 217 of file aac.h.

Referenced by decode_dynamic_range().

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

• libavcodec/aac.h