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

Detailed Description

Definition at line 217 of file alsdec.c.


Field Documentation

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().

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().

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().

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().

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().

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().

prediction order of this block

Definition at line 224 of file alsdec.c.

Referenced by decode_var_block_data(), and read_var_block_data().

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().

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().

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().

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().

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().

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().


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

Generated on Fri Oct 26 02:36:56 2012 for FFmpeg by  doxygen 1.5.8