AC3Block Struct Reference

Data for a single audio block. More...

Data Fields
uint8_t **	bap
	bit allocation pointers (bap)
CoefType **	mdct_coef
	MDCT coefficients.
int32_t **	fixed_coef
	fixed-point MDCT coefficients
uint8_t **	exp
	original exponents
uint8_t **	grouped_exp
	grouped exponents
int16_t **	psd
	psd per frequency bin
int16_t **	band_psd
	psd per critical band
int16_t **	mask
	masking curve
uint16_t **	qmant
	quantized mantissas
int8_t	exp_shift [AC3_MAX_CHANNELS]
	exponent shift values
uint8_t	new_rematrixing_strategy
	send new rematrixing flags in this block
uint8_t	rematrixing_flags [4]
	rematrixing flags

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Detailed Description

Data for a single audio block.

Definition at line 68 of file ac3enc.c.

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Field Documentation

uint8_t** AC3Block::bap

bit allocation pointers (bap)

Definition at line 69 of file ac3enc.c.

Referenced by ac3_encode_close(), allocate_buffers(), bit_alloc(), output_audio_block(), quantize_mantissas(), and reset_block_bap().

CoefType** AC3Block::mdct_coef

MDCT coefficients.

Definition at line 70 of file ac3enc.c.

Referenced by ac3_encode_close(), allocate_buffers(), apply_mdct(), and compute_rematrixing_strategy().

int32_t** AC3Block::fixed_coef

fixed-point MDCT coefficients

Definition at line 71 of file ac3enc.c.

Referenced by ac3_encode_close(), allocate_buffers(), apply_rematrixing(), extract_exponents(), and quantize_mantissas().

uint8_t** AC3Block::exp

original exponents

Definition at line 72 of file ac3enc.c.

Referenced by ac3_encode_close(), allocate_buffers(), bit_alloc_masking(), compute_exp_strategy(), encode_exponents(), extract_exponents(), group_exponents(), and quantize_mantissas().

uint8_t** AC3Block::grouped_exp

grouped exponents

Definition at line 73 of file ac3enc.c.

Referenced by ac3_encode_close(), allocate_buffers(), group_exponents(), and output_audio_block().

int16_t** AC3Block::psd

psd per frequency bin

Definition at line 74 of file ac3enc.c.

Referenced by ac3_encode_close(), allocate_buffers(), bit_alloc(), and bit_alloc_masking().

int16_t** AC3Block::band_psd

psd per critical band

Definition at line 75 of file ac3enc.c.

Referenced by ac3_encode_close(), allocate_buffers(), and bit_alloc_masking().

int16_t** AC3Block::mask

masking curve

Definition at line 76 of file ac3enc.c.

Referenced by ac3_encode_close(), allocate_buffers(), bit_alloc(), and bit_alloc_masking().

uint16_t** AC3Block::qmant

quantized mantissas

Definition at line 77 of file ac3enc.c.

Referenced by ac3_encode_close(), allocate_buffers(), output_audio_block(), and quantize_mantissas().

int8_t AC3Block::exp_shift[AC3_MAX_CHANNELS]

exponent shift values

Definition at line 78 of file ac3enc.c.

Referenced by apply_mdct(), extract_exponents(), and quantize_mantissas().

uint8_t AC3Block::new_rematrixing_strategy

send new rematrixing flags in this block

Definition at line 79 of file ac3enc.c.

Referenced by apply_rematrixing(), compute_rematrixing_strategy(), count_frame_bits(), output_audio_block(), and rematrixing_init().

uint8_t AC3Block::rematrixing_flags[4]

rematrixing flags

Definition at line 80 of file ac3enc.c.

Referenced by apply_rematrixing(), compute_rematrixing_strategy(), output_audio_block(), and rematrixing_init().

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

• libavcodec/ac3enc.c