ALSBlockData Struct Reference

Data Fields
unsigned int	block_length
	number of samples within the block More...
unsigned int	ra_block
	if true, this is a random access block More...
int *	const_block
	if true, this is a constant value block More...
int	js_blocks
	true if this block contains a difference signal More...
unsigned int *	shift_lsbs
	shift of values for this block More...
unsigned int *	opt_order
	prediction order of this block More...
int *	store_prev_samples
	if true, carryover samples have to be stored More...
int *	use_ltp
	if true, long-term prediction is used More...
int *	ltp_lag
	lag value for long-term prediction More...
int *	ltp_gain
	gain values for ltp 5-tap filter More...
int32_t *	quant_cof
	quantized parcor coefficients More...
int32_t *	lpc_cof
	coefficients of the direct form prediction More...
int32_t *	raw_samples
	decoded raw samples / residuals for this block More...
int32_t *	prev_raw_samples
	contains unshifted raw samples from the previous block More...
int32_t *	raw_other
	decoded raw samples of the other channel of a channel pair More...

Detailed Description

Definition at line 242 of file alsdec.c.

Field Documentation

block_length

unsigned int ALSBlockData::block_length

number of samples within the block

Definition at line 243 of file alsdec.c.

Referenced by decode_block(), decode_blocks(), decode_blocks_ind(), decode_const_block_data(), decode_var_block_data(), read_const_block_data(), read_frame_data(), read_var_block_data(), and revert_channel_correlation().

ra_block

unsigned int ALSBlockData::ra_block

if true, this is a random access block

Definition at line 244 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_var_block_data(), read_frame_data(), and read_var_block_data().

const_block

int* ALSBlockData::const_block

if true, this is a constant value block

Definition at line 245 of file alsdec.c.

Referenced by decode_block(), decode_blocks(), decode_blocks_ind(), read_const_block_data(), read_frame_data(), read_var_block_data(), and revert_channel_correlation().

js_blocks

int ALSBlockData::js_blocks

true if this block contains a difference signal

Definition at line 246 of file alsdec.c.

Referenced by decode_blocks(), decode_var_block_data(), read_const_block_data(), and read_var_block_data().

shift_lsbs

unsigned int* ALSBlockData::shift_lsbs

shift of values for this block

Definition at line 247 of file alsdec.c.

Referenced by decode_block(), decode_blocks(), decode_blocks_ind(), decode_var_block_data(), read_block(), read_frame_data(), read_var_block_data(), and revert_channel_correlation().

opt_order

unsigned int* ALSBlockData::opt_order

prediction order of this block

Definition at line 248 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_var_block_data(), read_frame_data(), read_var_block_data(), and revert_channel_correlation().

store_prev_samples

int* ALSBlockData::store_prev_samples

if true, carryover samples have to be stored

Definition at line 249 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_var_block_data(), read_frame_data(), read_var_block_data(), and revert_channel_correlation().

use_ltp

int* ALSBlockData::use_ltp

if true, long-term prediction is used

Definition at line 250 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_var_block_data(), read_frame_data(), read_var_block_data(), and revert_channel_correlation().

ltp_lag

int* ALSBlockData::ltp_lag

lag value for long-term prediction

Definition at line 251 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_var_block_data(), read_frame_data(), read_var_block_data(), and revert_channel_correlation().

ltp_gain

int* ALSBlockData::ltp_gain

gain values for ltp 5-tap filter

Definition at line 252 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_var_block_data(), read_frame_data(), read_var_block_data(), and revert_channel_correlation().

quant_cof

int32_t* ALSBlockData::quant_cof

quantized parcor coefficients

Definition at line 253 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_var_block_data(), read_frame_data(), read_var_block_data(), and revert_channel_correlation().

lpc_cof

int32_t* ALSBlockData::lpc_cof

coefficients of the direct form prediction

Definition at line 254 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_var_block_data(), read_frame_data(), and revert_channel_correlation().

raw_samples

int32_t* ALSBlockData::raw_samples

decoded raw samples / residuals for this block

Definition at line 255 of file alsdec.c.

Referenced by decode_block(), decode_blocks(), decode_blocks_ind(), decode_const_block_data(), decode_var_block_data(), read_const_block_data(), read_frame_data(), read_var_block_data(), and revert_channel_correlation().

prev_raw_samples

int32_t* ALSBlockData::prev_raw_samples

contains unshifted raw samples from the previous block

Definition at line 256 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_var_block_data(), and read_frame_data().

raw_other

int32_t* ALSBlockData::raw_other

decoded raw samples of the other channel of a channel pair

Definition at line 257 of file alsdec.c.

Referenced by decode_blocks(), decode_var_block_data(), read_frame_data(), and read_var_block_data().

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

• libavcodec/alsdec.c