ALSBlockData Struct Reference

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

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Detailed Description

Definition at line 217 of file alsdec.c.

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Field Documentation

unsigned int ALSBlockData::block_length

number of samples within the block

Definition at line 218 of file alsdec.c.

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

int ALSBlockData::const_block

if true, this is a constant value block

Definition at line 220 of file alsdec.c.

Referenced by decode_block(), read_const_block_data(), and read_var_block_data().

int32_t ALSBlockData::const_val

the sample value of a constant block

Definition at line 221 of file alsdec.c.

Referenced by decode_const_block_data(), and read_const_block_data().

int ALSBlockData::js_blocks

true if this block contains a difference signal

Definition at line 222 of file alsdec.c.

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

int32_t* ALSBlockData::lpc_cof

coefficients of the direct form prediction

Definition at line 230 of file alsdec.c.

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

int* ALSBlockData::ltp_gain

gain values for ltp 5-tap filter

Definition at line 228 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().

int* ALSBlockData::ltp_lag

lag value for long-term prediction

Definition at line 227 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().

unsigned int ALSBlockData::opt_order

prediction order of this block

Definition at line 224 of file alsdec.c.

Referenced by decode_var_block_data(), and read_var_block_data().

int32_t* ALSBlockData::prev_raw_samples

contains unshifted raw samples from the previous block

Definition at line 232 of file alsdec.c.

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

int32_t* ALSBlockData::quant_cof

quantized parcor coefficients

Definition at line 229 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().

unsigned int ALSBlockData::ra_block

if true, this is a random access block

Definition at line 219 of file alsdec.c.

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

int32_t* ALSBlockData::raw_other

decoded raw samples of the other channel of a channel pair

Definition at line 233 of file alsdec.c.

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

int32_t* ALSBlockData::raw_samples

decoded raw samples / residuals for this block

Definition at line 231 of file alsdec.c.

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

unsigned int ALSBlockData::shift_lsbs

shift of values for this block

Definition at line 223 of file alsdec.c.

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

int ALSBlockData::store_prev_samples

if true, carryover samples have to be stored

Definition at line 225 of file alsdec.c.

Referenced by decode_var_block_data(), and read_var_block_data().

int* ALSBlockData::use_ltp

if true, long-term prediction is used

Definition at line 226 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().

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

• libavcodec/alsdec.c