AACEncContext Struct Reference

AAC encoder context. More...

#include <aacenc.h>

Data Fields
AVClass *	av_class
AACEncOptions	options
	encoding options
PutBitContext	pb
FFTContext	mdct1024
	long (1024 samples) frame transform context
FFTContext	mdct128
	short (128 samples) frame transform context
AVFloatDSPContext	fdsp
float *	planar_samples [6]
	saved preprocessed input
int	samplerate_index
	MPEG-4 samplerate index.
int	channels
	channel count
const uint8_t *	chan_map
	channel configuration map
ChannelElement *	cpe
	channel elements
FFPsyContext	psy
struct FFPsyPreprocessContext *	psypp
AACCoefficientsEncoder *	coder
int	cur_channel
int	last_frame
float	lambda
AudioFrameQueue	afq
int	qcoefs [96]
	quantized coefficients
float	scoefs [1024]
	scaled coefficients
struct {
float *   samples
}	buffer

Detailed Description

AAC encoder context.

Definition at line 64 of file aacenc.h.

Field Documentation

AVClass* AACEncContext::av_class

Definition at line 65 of file aacenc.h.

AACEncOptions AACEncContext::options

encoding options

Definition at line 66 of file aacenc.h.

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

PutBitContext AACEncContext::pb

Definition at line 67 of file aacenc.h.

Referenced by aac_encode_frame(), codebook_trellis_rate(), encode_individual_channel(), encode_pulses(), encode_scale_factors(), encode_spectral_coeffs(), encode_window_bands_info(), put_bitstream_info(), and put_ics_info().

FFTContext AACEncContext::mdct1024

long (1024 samples) frame transform context

Definition at line 68 of file aacenc.h.

Referenced by aac_encode_end(), apply_window_and_mdct(), and dsp_init().

FFTContext AACEncContext::mdct128

short (128 samples) frame transform context

Definition at line 69 of file aacenc.h.

Referenced by aac_encode_end(), apply_window_and_mdct(), and dsp_init().

AVFloatDSPContext AACEncContext::fdsp

Definition at line 70 of file aacenc.h.

Referenced by apply_window_and_mdct(), and dsp_init().

float* AACEncContext::planar_samples[6]

saved preprocessed input

Definition at line 71 of file aacenc.h.

Referenced by aac_encode_frame(), alloc_buffers(), and copy_input_samples().

int AACEncContext::samplerate_index

MPEG-4 samplerate index.

Definition at line 73 of file aacenc.h.

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

int AACEncContext::channels

channel count

Definition at line 74 of file aacenc.h.

Referenced by aac_encode_frame(), aac_encode_init(), alloc_buffers(), copy_input_samples(), and put_audio_specific_config().

const uint8_t* AACEncContext::chan_map

channel configuration map

Definition at line 75 of file aacenc.h.

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

ChannelElement* AACEncContext::cpe

channel elements

Definition at line 77 of file aacenc.h.

Referenced by aac_encode_end(), aac_encode_frame(), and alloc_buffers().

FFPsyContext AACEncContext::psy

Definition at line 78 of file aacenc.h.

Referenced by aac_encode_end(), aac_encode_frame(), aac_encode_init(), encode_window_bands_info(), search_for_ms(), search_for_quantizers_anmr(), search_for_quantizers_fast(), and search_for_quantizers_twoloop().

struct FFPsyPreprocessContext* AACEncContext::psypp

Definition at line 79 of file aacenc.h.

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

AACCoefficientsEncoder* AACEncContext::coder

Definition at line 80 of file aacenc.h.

Referenced by aac_encode_frame(), aac_encode_init(), encode_band_info(), encode_spectral_coeffs(), and ff_aac_coder_init_mips().

int AACEncContext::cur_channel

Definition at line 81 of file aacenc.h.

Referenced by aac_encode_frame(), encode_window_bands_info(), search_for_ms(), search_for_quantizers_anmr(), search_for_quantizers_fast(), and search_for_quantizers_twoloop().

int AACEncContext::last_frame

Definition at line 82 of file aacenc.h.

Referenced by aac_encode_frame().

float AACEncContext::lambda

Definition at line 83 of file aacenc.h.

Referenced by aac_encode_frame(), aac_encode_init(), encode_band_info(), and encode_spectral_coeffs().

AudioFrameQueue AACEncContext::afq

Definition at line 84 of file aacenc.h.

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

int AACEncContext::qcoefs[96]

quantized coefficients

Definition at line 85 of file aacenc.h.

Referenced by quantize_and_encode_band_cost_template().

float AACEncContext::scoefs[1024]

scaled coefficients

Definition at line 86 of file aacenc.h.

Referenced by codebook_trellis_rate(), encode_window_bands_info(), quantize_and_encode_band_cost_template(), search_for_ms(), search_for_quantizers_anmr(), search_for_quantizers_faac(), and search_for_quantizers_twoloop().

float* AACEncContext::samples

Definition at line 89 of file aacenc.h.

Referenced by aac_encode_end(), and alloc_buffers().

struct { ... } AACEncContext::buffer

Referenced by aac_encode_end(), and alloc_buffers().

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

• libavcodec/aacenc.h