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
intconst_block
 if true, this is a constant value block
int js_blocks
 true if this block contains a difference signal
unsigned intshift_lsbs
 shift of values for this block
unsigned intopt_order
 prediction order of this block
intstore_prev_samples
 if true, carryover samples have to be stored
intuse_ltp
 if true, long-term prediction is used
intltp_lag
 lag value for long-term prediction
intltp_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 232 of file alsdec.c.


Field Documentation

if true, this is a constant value block

Definition at line 235 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().

true if this block contains a difference signal

Definition at line 236 of file alsdec.c.

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

coefficients of the direct form prediction

Definition at line 244 of file alsdec.c.

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

gain values for ltp 5-tap filter

Definition at line 242 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().

lag value for long-term prediction

Definition at line 241 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().

prediction order of this block

Definition at line 238 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().

contains unshifted raw samples from the previous block

Definition at line 246 of file alsdec.c.

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

quantized parcor coefficients

Definition at line 243 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().

if true, this is a random access block

Definition at line 234 of file alsdec.c.

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

decoded raw samples of the other channel of a channel pair

Definition at line 247 of file alsdec.c.

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

if true, carryover samples have to be stored

Definition at line 239 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().

if true, long-term prediction is used

Definition at line 240 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().


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

Generated on Fri Oct 26 02:50:14 2012 for FFmpeg by  doxygen 1.5.8