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

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

Detailed Description

Definition at line 248 of file alsdec.c.

Field Documentation

◆ block_length

unsigned int ALSBlockData::block_length

number of samples within the block

Definition at line 249 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 250 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 251 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 252 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 253 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 254 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 255 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 256 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 257 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 258 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 259 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 260 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 261 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 262 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 263 of file alsdec.c.

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

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

libavcodec/alsdec.c

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