FFmpeg
Data Fields
ALSDecContext Struct Reference

Data Fields

AVCodecContextavctx
 
ALSSpecificConfig sconf
 
GetBitContext gb
 
BswapDSPContext bdsp
 
const AVCRCcrc_table
 
uint32_t crc_org
 CRC value of the original input data. More...
 
uint32_t crc
 CRC value calculated from decoded data. More...
 
unsigned int cur_frame_length
 length of the current frame to decode More...
 
unsigned int frame_id
 the frame ID / number of the current frame More...
 
unsigned int js_switch
 if true, joint-stereo decoding is enforced More...
 
unsigned int cs_switch
 if true, channel rearrangement is done More...
 
unsigned int num_blocks
 number of blocks used in the current frame More...
 
unsigned int s_max
 maximum Rice parameter allowed in entropy coding More...
 
uint8_tbgmc_lut
 pointer at lookup tables used for BGMC More...
 
intbgmc_lut_status
 pointer at lookup table status flags used for BGMC More...
 
int ltp_lag_length
 number of bits used for ltp lag value More...
 
intconst_block
 contains const_block flags for all channels More...
 
unsigned intshift_lsbs
 contains shift_lsbs flags for all channels More...
 
unsigned intopt_order
 contains opt_order flags for all channels More...
 
intstore_prev_samples
 contains store_prev_samples flags for all channels More...
 
intuse_ltp
 contains use_ltp flags for all channels More...
 
intltp_lag
 contains ltp lag values for all channels More...
 
int ** ltp_gain
 gain values for ltp 5-tap filter for a channel More...
 
intltp_gain_buffer
 contains all gain values for ltp 5-tap filter More...
 
int32_t ** quant_cof
 quantized parcor coefficients for a channel More...
 
int32_tquant_cof_buffer
 contains all quantized parcor coefficients More...
 
int32_t ** lpc_cof
 coefficients of the direct form prediction filter for a channel More...
 
int32_tlpc_cof_buffer
 contains all coefficients of the direct form prediction filter More...
 
int32_tlpc_cof_reversed_buffer
 temporary buffer to set up a reversed versio of lpc_cof_buffer More...
 
ALSChannelData ** chan_data
 channel data for multi-channel correlation More...
 
ALSChannelDatachan_data_buffer
 contains channel data for all channels More...
 
intreverted_channels
 stores a flag for each reverted channel More...
 
int32_tprev_raw_samples
 contains unshifted raw samples from the previous block More...
 
int32_t ** raw_samples
 decoded raw samples for each channel More...
 
int32_traw_buffer
 contains all decoded raw samples including carryover samples More...
 
uint8_tcrc_buffer
 buffer of byte order corrected samples used for CRC check More...
 
MLZmlz
 masked lz decompression structure More...
 
SoftFloat_IEEE754acf
 contains common multiplier for all channels More...
 
intlast_acf_mantissa
 contains the last acf mantissa data of common multiplier for all channels More...
 
intshift_value
 value by which the binary point is to be shifted for all channels More...
 
intlast_shift_value
 contains last shift value for all channels More...
 
int ** raw_mantissa
 decoded mantissa bits of the difference signal More...
 
unsigned char * larray
 buffer to store the output of masked lz decompression More...
 
intnbits
 contains the number of bits to read for masked lz decompression for all samples More...
 
int highest_decoded_channel
 

Detailed Description

Definition at line 194 of file alsdec.c.

Field Documentation

AVCodecContext* ALSDecContext::avctx
ALSSpecificConfig ALSDecContext::sconf
GetBitContext ALSDecContext::gb
BswapDSPContext ALSDecContext::bdsp

Definition at line 198 of file alsdec.c.

Referenced by decode_frame(), and decode_init().

const AVCRC* ALSDecContext::crc_table

Definition at line 199 of file alsdec.c.

Referenced by decode_frame(), and read_specific_config().

uint32_t ALSDecContext::crc_org

CRC value of the original input data.

Definition at line 200 of file alsdec.c.

Referenced by decode_frame(), and read_specific_config().

uint32_t ALSDecContext::crc

CRC value calculated from decoded data.

Definition at line 201 of file alsdec.c.

Referenced by decode_frame(), and read_specific_config().

unsigned int ALSDecContext::cur_frame_length

length of the current frame to decode

Definition at line 202 of file alsdec.c.

Referenced by decode_frame(), decode_init(), get_block_sizes(), read_diff_float_data(), and read_specific_config().

unsigned int ALSDecContext::frame_id

the frame ID / number of the current frame

Definition at line 203 of file alsdec.c.

Referenced by decode_frame(), and flush().

unsigned int ALSDecContext::js_switch

if true, joint-stereo decoding is enforced

Definition at line 204 of file alsdec.c.

Referenced by read_block(), and read_frame_data().

unsigned int ALSDecContext::cs_switch

if true, channel rearrangement is done

Definition at line 205 of file alsdec.c.

Referenced by read_specific_config().

unsigned int ALSDecContext::num_blocks

number of blocks used in the current frame

Definition at line 206 of file alsdec.c.

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

unsigned int ALSDecContext::s_max

maximum Rice parameter allowed in entropy coding

Definition at line 207 of file alsdec.c.

Referenced by decode_init(), and read_var_block_data().

uint8_t* ALSDecContext::bgmc_lut

pointer at lookup tables used for BGMC

Definition at line 208 of file alsdec.c.

Referenced by decode_end(), decode_init(), and read_var_block_data().

int* ALSDecContext::bgmc_lut_status

pointer at lookup table status flags used for BGMC

Definition at line 209 of file alsdec.c.

Referenced by decode_end(), decode_init(), and read_var_block_data().

int ALSDecContext::ltp_lag_length

number of bits used for ltp lag value

Definition at line 210 of file alsdec.c.

Referenced by decode_init(), read_channel_data(), and read_var_block_data().

int* ALSDecContext::const_block

contains const_block flags for all channels

Definition at line 211 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_end(), decode_init(), read_frame_data(), and revert_channel_correlation().

unsigned int* ALSDecContext::shift_lsbs

contains shift_lsbs flags for all channels

Definition at line 212 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_end(), decode_init(), read_frame_data(), and revert_channel_correlation().

unsigned int* ALSDecContext::opt_order

contains opt_order flags for all channels

Definition at line 213 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_end(), decode_init(), read_frame_data(), and revert_channel_correlation().

int* ALSDecContext::store_prev_samples

contains store_prev_samples flags for all channels

Definition at line 214 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_end(), decode_init(), read_frame_data(), and revert_channel_correlation().

int* ALSDecContext::use_ltp

contains use_ltp flags for all channels

Definition at line 215 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_end(), decode_init(), read_frame_data(), and revert_channel_correlation().

int* ALSDecContext::ltp_lag

contains ltp lag values for all channels

Definition at line 216 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_end(), decode_init(), read_frame_data(), and revert_channel_correlation().

int** ALSDecContext::ltp_gain

gain values for ltp 5-tap filter for a channel

Definition at line 217 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_end(), decode_init(), read_frame_data(), and revert_channel_correlation().

int* ALSDecContext::ltp_gain_buffer

contains all gain values for ltp 5-tap filter

Definition at line 218 of file alsdec.c.

Referenced by decode_end(), and decode_init().

int32_t** ALSDecContext::quant_cof

quantized parcor coefficients for a channel

Definition at line 219 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_end(), decode_init(), read_frame_data(), and revert_channel_correlation().

int32_t* ALSDecContext::quant_cof_buffer

contains all quantized parcor coefficients

Definition at line 220 of file alsdec.c.

Referenced by decode_end(), and decode_init().

int32_t** ALSDecContext::lpc_cof

coefficients of the direct form prediction filter for a channel

Definition at line 221 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_end(), decode_init(), read_frame_data(), and revert_channel_correlation().

int32_t* ALSDecContext::lpc_cof_buffer

contains all coefficients of the direct form prediction filter

Definition at line 222 of file alsdec.c.

Referenced by decode_end(), and decode_init().

int32_t* ALSDecContext::lpc_cof_reversed_buffer

temporary buffer to set up a reversed versio of lpc_cof_buffer

Definition at line 223 of file alsdec.c.

Referenced by decode_end(), decode_init(), and decode_var_block_data().

ALSChannelData** ALSDecContext::chan_data

channel data for multi-channel correlation

Definition at line 224 of file alsdec.c.

Referenced by decode_end(), decode_init(), and read_frame_data().

ALSChannelData* ALSDecContext::chan_data_buffer

contains channel data for all channels

Definition at line 225 of file alsdec.c.

Referenced by decode_end(), decode_init(), and read_frame_data().

int* ALSDecContext::reverted_channels

stores a flag for each reverted channel

Definition at line 226 of file alsdec.c.

Referenced by decode_end(), decode_init(), and read_frame_data().

int32_t* ALSDecContext::prev_raw_samples

contains unshifted raw samples from the previous block

Definition at line 227 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_end(), decode_init(), and read_frame_data().

int32_t** ALSDecContext::raw_samples

decoded raw samples for each channel

Definition at line 228 of file alsdec.c.

Referenced by decode_blocks(), decode_blocks_ind(), decode_end(), decode_init(), read_diff_float_data(), read_frame_data(), and revert_channel_correlation().

int32_t* ALSDecContext::raw_buffer

contains all decoded raw samples including carryover samples

Definition at line 229 of file alsdec.c.

Referenced by decode_end(), decode_init(), and revert_channel_correlation().

uint8_t* ALSDecContext::crc_buffer

buffer of byte order corrected samples used for CRC check

Definition at line 230 of file alsdec.c.

Referenced by decode_end(), decode_frame(), and decode_init().

MLZ* ALSDecContext::mlz

masked lz decompression structure

Definition at line 231 of file alsdec.c.

Referenced by decode_end(), decode_init(), and read_diff_float_data().

SoftFloat_IEEE754* ALSDecContext::acf

contains common multiplier for all channels

Definition at line 232 of file alsdec.c.

Referenced by decode_end(), decode_init(), and read_diff_float_data().

int* ALSDecContext::last_acf_mantissa

contains the last acf mantissa data of common multiplier for all channels

Definition at line 233 of file alsdec.c.

Referenced by decode_end(), decode_init(), and read_diff_float_data().

int* ALSDecContext::shift_value

value by which the binary point is to be shifted for all channels

Definition at line 234 of file alsdec.c.

Referenced by decode_end(), decode_init(), and read_diff_float_data().

int* ALSDecContext::last_shift_value

contains last shift value for all channels

Definition at line 235 of file alsdec.c.

Referenced by decode_end(), decode_init(), and read_diff_float_data().

int** ALSDecContext::raw_mantissa

decoded mantissa bits of the difference signal

Definition at line 236 of file alsdec.c.

Referenced by decode_end(), decode_init(), and read_diff_float_data().

unsigned char* ALSDecContext::larray

buffer to store the output of masked lz decompression

Definition at line 237 of file alsdec.c.

Referenced by decode_end(), decode_init(), and read_diff_float_data().

int* ALSDecContext::nbits

contains the number of bits to read for masked lz decompression for all samples

Definition at line 238 of file alsdec.c.

Referenced by decode_end(), decode_init(), and read_diff_float_data().

int ALSDecContext::highest_decoded_channel

Definition at line 239 of file alsdec.c.

Referenced by decode_frame(), and read_frame_data().


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