FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
Data Fields
DCAContext Struct Reference

Data Fields

AVCodecContext * avctx
 
int frame_type
 type of the current frame
 
int samples_deficit
 deficit sample count
 
int crc_present
 crc is present in the bitstream
 
int sample_blocks
 number of PCM sample blocks
 
int frame_size
 primary frame byte size
 
int amode
 audio channels arrangement
 
int sample_rate
 audio sampling rate
 
int bit_rate
 transmission bit rate
 
int bit_rate_index
 transmission bit rate index
 
int downmix
 embedded downmix enabled
 
int dynrange
 embedded dynamic range flag
 
int timestamp
 embedded time stamp flag
 
int aux_data
 auxiliary data flag
 
int hdcd
 source material is mastered in HDCD
 
int ext_descr
 extension audio descriptor flag
 
int ext_coding
 extended coding flag
 
int aspf
 audio sync word insertion flag
 
int lfe
 low frequency effects flag
 
int predictor_history
 predictor history flag
 
int header_crc
 header crc check bytes
 
int multirate_inter
 multirate interpolator switch
 
int version
 encoder software revision
 
int copy_history
 copy history
 
int source_pcm_res
 source pcm resolution
 
int front_sum
 front sum/difference flag
 
int surround_sum
 surround sum/difference flag
 
int dialog_norm
 dialog normalisation parameter
 
int subframes
 number of subframes
 
int total_channels
 number of channels including extensions
 
int prim_channels
 number of primary audio channels
 
int subband_activity [DCA_PRIM_CHANNELS_MAX]
 subband activity count
 
int vq_start_subband [DCA_PRIM_CHANNELS_MAX]
 high frequency vq start subband
 
int joint_intensity [DCA_PRIM_CHANNELS_MAX]
 joint intensity coding index
 
int transient_huffman [DCA_PRIM_CHANNELS_MAX]
 transient mode code book
 
int scalefactor_huffman [DCA_PRIM_CHANNELS_MAX]
 scale factor code book
 
int bitalloc_huffman [DCA_PRIM_CHANNELS_MAX]
 bit allocation quantizer select
 
int quant_index_huffman [DCA_PRIM_CHANNELS_MAX][DCA_ABITS_MAX]
 quantization index codebook select
 
float scalefactor_adj [DCA_PRIM_CHANNELS_MAX][DCA_ABITS_MAX]
 scale factor adjustment
 
int subsubframes [DCA_SUBFRAMES_MAX]
 number of subsubframes
 
int partial_samples [DCA_SUBFRAMES_MAX]
 partial subsubframe samples count
 
int prediction_mode [DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]
 prediction mode (ADPCM used or not)
 
int prediction_vq [DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]
 prediction VQ coefs
 
int bitalloc [DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]
 bit allocation index
 
int transition_mode [DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]
 transition mode (transients)
 
int scale_factor [DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][2]
 scale factors (2 if transient)
 
int joint_huff [DCA_PRIM_CHANNELS_MAX]
 joint subband scale factors codebook
 
int joint_scale_factor [DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]
 joint subband scale factors
 
int downmix_coef [DCA_PRIM_CHANNELS_MAX][2]
 stereo downmix coefficients
 
int dynrange_coef
 dynamic range coefficient
 
int high_freq_vq [DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]
 VQ encoded high frequency subbands.
 
float lfe_data [2 *DCA_LFE_MAX *(DCA_BLOCKS_MAX+4)]
 Low frequency effect data.
 
int lfe_scale_factor
 
float subband_samples_hist [DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][4]
 
float subband_fir_hist [DCA_PRIM_CHANNELS_MAX][512]
 
float subband_fir_noidea [DCA_PRIM_CHANNELS_MAX][32]
 
int hist_index [DCA_PRIM_CHANNELS_MAX]
 
float raXin [32]
 
int output
 type of output
 
float subband_samples [DCA_BLOCKS_MAX][DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][8]
 
float * samples_chanptr [DCA_PRIM_CHANNELS_MAX+1]
 
float * extra_channels [DCA_PRIM_CHANNELS_MAX+1]
 
uint8_t * extra_channels_buffer
 
unsigned int extra_channels_buffer_size
 
uint8_t dca_buffer [DCA_MAX_FRAME_SIZE+DCA_MAX_EXSS_HEADER_SIZE+DCA_BUFFER_PADDING_SIZE]
 
int dca_buffer_size
 how much data is in the dca_buffer
 
const int8_t * channel_order_tab
 channel reordering table, lfe and non lfe
 
GetBitContext gb
 
int current_subframe
 
int current_subsubframe
 
int core_ext_mask
 present extensions in the core substream
 
int xch_present
 XCh extension present and valid.
 
int xch_base_channel
 index of first (only) channel containing XCH data
 
int xxch_chset
 
int xxch_nbits_spk_mask
 
uint32_t xxch_core_spkmask
 
uint32_t xxch_spk_masks [4]
 
int xxch_chset_nch [4]
 
float xxch_dmix_sf [DCA_CHSETS_MAX]
 
uint32_t xxch_dmix_embedded
 
float xxch_dmix_coeff [DCA_PRIM_CHANNELS_MAX][32]
 
int8_t xxch_order_tab [32]
 
int8_t lfe_index
 
int static_fields
 static fields present
 
int mix_metadata
 mixing metadata present
 
int num_mix_configs
 number of mix out configurations
 
int mix_config_num_ch [4]
 number of channels in each mix out configuration
 
int profile
 
int debug_flag
 used for suppressing repeated error messages output
 
AVFloatDSPContext fdsp
 
FFTContext imdct
 
SynthFilterContext synth
 
DCADSPContext dcadsp
 
FmtConvertContext fmt_conv
 
PutBitContext pb
 
int frame_bits
 
int fullband_channels
 
int channels
 
int lfe_channel
 
int samplerate_index
 
int bitrate_index
 
int channel_config
 
const int32_t * band_interpolation
 
const int32_t * band_spectrum
 
softfloat lfe_quant
 
int32_t lfe_peak_cb
 
int32_t history [512][MAX_CHANNELS]
 
int32_t subband [SUBBAND_SAMPLES][DCA_SUBBANDS][MAX_CHANNELS]
 
int32_t quantized [SUBBAND_SAMPLES][DCA_SUBBANDS][MAX_CHANNELS]
 
int32_t peak_cb [DCA_SUBBANDS][MAX_CHANNELS]
 
int32_t downsampled_lfe [DCA_LFE_SAMPLES]
 
int32_t masking_curve_cb [SUBSUBFRAMES][256]
 
int abits [DCA_SUBBANDS][MAX_CHANNELS]
 
softfloat quant [DCA_SUBBANDS][MAX_CHANNELS]
 
int32_t eff_masking_curve_cb [256]
 
int32_t band_masking_cb [32]
 
int32_t worst_quantization_noise
 
int32_t worst_noise_ever
 
int consumed_bits
 

Detailed Description

Definition at line 348 of file dcadec.c.

Field Documentation

AVCodecContext* DCAContext::avctx

Definition at line 349 of file dcadec.c.

Referenced by dca_decode_block(), dca_decode_init(), dca_exss_parse_asset_header(), dca_exss_parse_header(), dca_filter_channels(), dca_parse_audio_coding_header(), dca_parse_frame_header(), dca_subframe_header(), dca_subsubframe(), dca_xbr_parse_frame(), and dca_xxch_decode_frame().

int DCAContext::frame_type

type of the current frame

Definition at line 351 of file dcadec.c.

Referenced by dca_parse_frame_header().

int DCAContext::samples_deficit

deficit sample count

Definition at line 352 of file dcadec.c.

Referenced by dca_parse_frame_header().

int DCAContext::crc_present

crc is present in the bitstream

Definition at line 353 of file dcadec.c.

Referenced by dca_parse_audio_coding_header(), dca_parse_frame_header(), dca_subframe_footer(), and dca_subframe_header().

int DCAContext::sample_blocks

number of PCM sample blocks

Definition at line 354 of file dcadec.c.

Referenced by dca_decode_frame(), dca_parse_frame_header(), dca_xbr_parse_frame(), and dca_xxch_decode_frame().

int DCAContext::frame_size

primary frame byte size

Definition at line 355 of file dcadec.c.

Referenced by dca_decode_frame(), dca_parse_frame_header(), encode_frame(), encode_init(), and put_frame_header().

int DCAContext::amode

audio channels arrangement

Definition at line 356 of file dcadec.c.

Referenced by dca_decode_frame(), dca_filter_channels(), dca_parse_frame_header(), and dca_subframe_header().

int DCAContext::sample_rate

audio sampling rate

Definition at line 357 of file dcadec.c.

Referenced by dca_decode_frame(), and dca_parse_frame_header().

int DCAContext::bit_rate

transmission bit rate

Definition at line 358 of file dcadec.c.

Referenced by dca_decode_frame(), and dca_parse_frame_header().

int DCAContext::bit_rate_index

transmission bit rate index

Definition at line 359 of file dcadec.c.

Referenced by dca_parse_frame_header(), and dca_subsubframe().

int DCAContext::downmix

embedded downmix enabled

Definition at line 361 of file dcadec.c.

Referenced by dca_parse_frame_header(), dca_subframe_footer(), and dca_subframe_header().

int DCAContext::dynrange

embedded dynamic range flag

Definition at line 362 of file dcadec.c.

Referenced by dca_parse_frame_header(), dca_subframe_footer(), and dca_subframe_header().

int DCAContext::timestamp

embedded time stamp flag

Definition at line 363 of file dcadec.c.

Referenced by dca_parse_frame_header(), and dca_subframe_footer().

int DCAContext::aux_data

auxiliary data flag

Definition at line 364 of file dcadec.c.

Referenced by dca_parse_frame_header(), and dca_subframe_footer().

int DCAContext::hdcd

source material is mastered in HDCD

Definition at line 365 of file dcadec.c.

Referenced by dca_parse_frame_header().

int DCAContext::ext_descr

extension audio descriptor flag

Definition at line 366 of file dcadec.c.

Referenced by dca_decode_frame(), and dca_parse_frame_header().

int DCAContext::ext_coding

extended coding flag

Definition at line 367 of file dcadec.c.

Referenced by dca_decode_frame(), and dca_parse_frame_header().

int DCAContext::aspf

audio sync word insertion flag

Definition at line 368 of file dcadec.c.

Referenced by dca_parse_frame_header(), dca_subsubframe(), and dca_xbr_parse_frame().

int DCAContext::lfe

low frequency effects flag

Definition at line 369 of file dcadec.c.

Referenced by dca_decode_frame(), dca_filter_channels(), dca_parse_frame_header(), and dca_subframe_header().

int DCAContext::predictor_history

predictor history flag

Definition at line 370 of file dcadec.c.

Referenced by dca_parse_frame_header(), and dca_subsubframe().

int DCAContext::header_crc

header crc check bytes

Definition at line 371 of file dcadec.c.

Referenced by dca_parse_frame_header().

int DCAContext::multirate_inter

multirate interpolator switch

Definition at line 372 of file dcadec.c.

Referenced by dca_parse_frame_header(), and qmf_32_subbands().

int DCAContext::version

encoder software revision

Definition at line 373 of file dcadec.c.

Referenced by dca_parse_frame_header().

int DCAContext::copy_history

copy history

Definition at line 374 of file dcadec.c.

Referenced by dca_parse_frame_header().

int DCAContext::source_pcm_res

source pcm resolution

Definition at line 375 of file dcadec.c.

Referenced by dca_decode_frame(), and dca_parse_frame_header().

int DCAContext::front_sum

front sum/difference flag

Definition at line 376 of file dcadec.c.

Referenced by dca_parse_frame_header().

int DCAContext::surround_sum

surround sum/difference flag

Definition at line 377 of file dcadec.c.

Referenced by dca_parse_frame_header().

int DCAContext::dialog_norm

dialog normalisation parameter

Definition at line 378 of file dcadec.c.

Referenced by dca_parse_frame_header().

int DCAContext::subframes

number of subframes

Definition at line 381 of file dcadec.c.

Referenced by dca_decode_block(), dca_parse_audio_coding_header(), and dca_parse_frame_header().

int DCAContext::total_channels

number of channels including extensions

Definition at line 382 of file dcadec.c.

Referenced by dca_parse_audio_coding_header().

int DCAContext::prim_channels

number of primary audio channels

Definition at line 383 of file dcadec.c.

Referenced by dca_decode_frame(), dca_filter_channels(), dca_parse_audio_coding_header(), dca_subframe_header(), dca_subsubframe(), dca_xbr_parse_frame(), and dca_xxch_decode_frame().

int DCAContext::subband_activity[DCA_PRIM_CHANNELS_MAX]

subband activity count

Definition at line 384 of file dcadec.c.

Referenced by dca_parse_audio_coding_header(), dca_subframe_header(), and qmf_32_subbands().

int DCAContext::vq_start_subband[DCA_PRIM_CHANNELS_MAX]

high frequency vq start subband

Definition at line 385 of file dcadec.c.

Referenced by dca_parse_audio_coding_header(), dca_subframe_header(), and dca_subsubframe().

int DCAContext::joint_intensity[DCA_PRIM_CHANNELS_MAX]

joint intensity coding index

Definition at line 386 of file dcadec.c.

Referenced by dca_parse_audio_coding_header(), and dca_subframe_header().

int DCAContext::transient_huffman[DCA_PRIM_CHANNELS_MAX]

transient mode code book

Definition at line 387 of file dcadec.c.

Referenced by dca_parse_audio_coding_header(), and dca_subframe_header().

int DCAContext::scalefactor_huffman[DCA_PRIM_CHANNELS_MAX]

scale factor code book

Definition at line 388 of file dcadec.c.

Referenced by dca_parse_audio_coding_header(), dca_subframe_header(), and dca_xbr_parse_frame().

int DCAContext::bitalloc_huffman[DCA_PRIM_CHANNELS_MAX]

bit allocation quantizer select

Definition at line 389 of file dcadec.c.

Referenced by dca_parse_audio_coding_header(), and dca_subframe_header().

int DCAContext::quant_index_huffman[DCA_PRIM_CHANNELS_MAX][DCA_ABITS_MAX]

quantization index codebook select

Definition at line 390 of file dcadec.c.

Referenced by dca_parse_audio_coding_header(), and dca_subsubframe().

float DCAContext::scalefactor_adj[DCA_PRIM_CHANNELS_MAX][DCA_ABITS_MAX]

scale factor adjustment

Definition at line 391 of file dcadec.c.

Referenced by dca_parse_audio_coding_header(), and dca_subsubframe().

int DCAContext::subsubframes[DCA_SUBFRAMES_MAX]

number of subsubframes

Definition at line 394 of file dcadec.c.

Referenced by dca_decode_block(), dca_subframe_header(), dca_subsubframe(), and dca_xbr_parse_frame().

int DCAContext::partial_samples[DCA_SUBFRAMES_MAX]

partial subsubframe samples count

Definition at line 395 of file dcadec.c.

Referenced by dca_subframe_header().

int DCAContext::prediction_mode[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]

prediction mode (ADPCM used or not)

Definition at line 396 of file dcadec.c.

Referenced by dca_subframe_header(), and dca_subsubframe().

int DCAContext::prediction_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]

prediction VQ coefs

Definition at line 397 of file dcadec.c.

Referenced by dca_subframe_header(), and dca_subsubframe().

int DCAContext::bitalloc[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]

bit allocation index

Definition at line 398 of file dcadec.c.

Referenced by dca_subframe_header(), and dca_subsubframe().

int DCAContext::transition_mode[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]

transition mode (transients)

Definition at line 399 of file dcadec.c.

Referenced by dca_subframe_header(), dca_subsubframe(), and dca_xbr_parse_frame().

int DCAContext::scale_factor

scale factors (2 if transient)

Definition at line 400 of file dcadec.c.

Referenced by calc_scales(), dca_subframe_header(), dca_subsubframe(), and put_subframe().

int DCAContext::joint_huff[DCA_PRIM_CHANNELS_MAX]

joint subband scale factors codebook

Definition at line 401 of file dcadec.c.

Referenced by dca_subframe_header().

int DCAContext::joint_scale_factor[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]

joint subband scale factors

Definition at line 402 of file dcadec.c.

Referenced by dca_subframe_header().

int DCAContext::downmix_coef[DCA_PRIM_CHANNELS_MAX][2]

stereo downmix coefficients

Definition at line 403 of file dcadec.c.

Referenced by dca_filter_channels(), and dca_subframe_header().

int DCAContext::dynrange_coef

dynamic range coefficient

Definition at line 404 of file dcadec.c.

Referenced by dca_subframe_header().

int DCAContext::high_freq_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]

VQ encoded high frequency subbands.

Definition at line 406 of file dcadec.c.

Referenced by dca_subframe_header(), and dca_subsubframe().

float DCAContext::lfe_data[2 *DCA_LFE_MAX *(DCA_BLOCKS_MAX+4)]

Low frequency effect data.

Definition at line 408 of file dcadec.c.

Referenced by dca_decode_frame(), dca_filter_channels(), and dca_subframe_header().

int DCAContext::lfe_scale_factor

Definition at line 409 of file dcadec.c.

Referenced by calc_scales(), dca_subframe_header(), and put_subframe().

float DCAContext::subband_samples_hist[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][4]

Definition at line 412 of file dcadec.c.

Referenced by dca_subsubframe().

float DCAContext::subband_fir_hist[DCA_PRIM_CHANNELS_MAX][512]

Definition at line 413 of file dcadec.c.

Referenced by qmf_32_subbands().

float DCAContext::subband_fir_noidea[DCA_PRIM_CHANNELS_MAX][32]

Definition at line 414 of file dcadec.c.

Referenced by qmf_32_subbands().

int DCAContext::hist_index[DCA_PRIM_CHANNELS_MAX]

Definition at line 415 of file dcadec.c.

Referenced by qmf_32_subbands().

float DCAContext::raXin[32]

Definition at line 416 of file dcadec.c.

Referenced by qmf_32_subbands().

int DCAContext::output

type of output

Definition at line 418 of file dcadec.c.

Referenced by dca_decode_frame(), dca_filter_channels(), and dca_parse_frame_header().

float DCAContext::subband_samples[DCA_BLOCKS_MAX][DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][8]

Definition at line 420 of file dcadec.c.

Referenced by dca_filter_channels(), dca_subsubframe(), and dca_xbr_parse_frame().

float* DCAContext::samples_chanptr[DCA_PRIM_CHANNELS_MAX+1]

Definition at line 421 of file dcadec.c.

Referenced by dca_decode_frame(), and dca_filter_channels().

float* DCAContext::extra_channels[DCA_PRIM_CHANNELS_MAX+1]

Definition at line 422 of file dcadec.c.

Referenced by dca_decode_frame().

uint8_t* DCAContext::extra_channels_buffer

Definition at line 423 of file dcadec.c.

Referenced by dca_decode_end(), and dca_decode_frame().

unsigned int DCAContext::extra_channels_buffer_size

Definition at line 424 of file dcadec.c.

Referenced by dca_decode_frame().

uint8_t DCAContext::dca_buffer[DCA_MAX_FRAME_SIZE+DCA_MAX_EXSS_HEADER_SIZE+DCA_BUFFER_PADDING_SIZE]

Definition at line 426 of file dcadec.c.

Referenced by dca_decode_frame(), and dca_parse_frame_header().

int DCAContext::dca_buffer_size

how much data is in the dca_buffer

Definition at line 427 of file dcadec.c.

Referenced by dca_decode_frame(), and dca_parse_frame_header().

const int8_t* DCAContext::channel_order_tab

channel reordering table, lfe and non lfe

Definition at line 429 of file dcadec.c.

Referenced by dca_decode_frame(), and dca_filter_channels().

GetBitContext DCAContext::gb

Definition at line 430 of file dcadec.c.

Referenced by dca_decode_frame(), dca_exss_parse_asset_header(), dca_exss_parse_header(), dca_parse_audio_coding_header(), dca_parse_frame_header(), dca_subframe_footer(), dca_subframe_header(), dca_subsubframe(), dca_xbr_parse_frame(), and dca_xxch_decode_frame().

int DCAContext::current_subframe

Definition at line 432 of file dcadec.c.

Referenced by dca_decode_block(), dca_parse_audio_coding_header(), dca_subframe_header(), and dca_subsubframe().

int DCAContext::current_subsubframe

Definition at line 433 of file dcadec.c.

Referenced by dca_decode_block(), dca_parse_audio_coding_header(), and dca_subsubframe().

int DCAContext::core_ext_mask

present extensions in the core substream

Definition at line 435 of file dcadec.c.

Referenced by dca_decode_frame(), dca_exss_parse_asset_header(), and dca_exss_parse_header().

int DCAContext::xch_present

XCh extension present and valid.

Definition at line 438 of file dcadec.c.

Referenced by dca_decode_frame().

int DCAContext::xch_base_channel

index of first (only) channel containing XCH data

Definition at line 439 of file dcadec.c.

Referenced by dca_decode_frame().

int DCAContext::xxch_chset

Definition at line 442 of file dcadec.c.

Referenced by dca_decode_frame(), dca_parse_audio_coding_header(), and dca_xxch_decode_frame().

int DCAContext::xxch_nbits_spk_mask

Definition at line 443 of file dcadec.c.

Referenced by dca_decode_frame(), dca_parse_audio_coding_header(), and dca_xxch_decode_frame().

uint32_t DCAContext::xxch_core_spkmask

Definition at line 444 of file dcadec.c.

Referenced by dca_decode_frame(), dca_parse_audio_coding_header(), dca_xxch2index(), and dca_xxch_decode_frame().

uint32_t DCAContext::xxch_spk_masks[4]

Definition at line 445 of file dcadec.c.

Referenced by dca_decode_frame(), dca_parse_audio_coding_header(), and dca_xxch2index().

int DCAContext::xxch_chset_nch[4]

Definition at line 446 of file dcadec.c.

Referenced by dca_decode_frame(), and dca_parse_audio_coding_header().

float DCAContext::xxch_dmix_sf[DCA_CHSETS_MAX]

Definition at line 447 of file dcadec.c.

Referenced by dca_decode_frame(), and dca_parse_audio_coding_header().

uint32_t DCAContext::xxch_dmix_embedded

Definition at line 449 of file dcadec.c.

Referenced by dca_decode_frame(), dca_parse_audio_coding_header(), and dca_xxch_decode_frame().

float DCAContext::xxch_dmix_coeff[DCA_PRIM_CHANNELS_MAX][32]

Definition at line 450 of file dcadec.c.

Referenced by dca_decode_frame(), and dca_parse_audio_coding_header().

int8_t DCAContext::xxch_order_tab[32]

Definition at line 452 of file dcadec.c.

Referenced by dca_decode_frame().

int8_t DCAContext::lfe_index

Definition at line 453 of file dcadec.c.

Referenced by dca_decode_frame(), and dca_filter_channels().

int DCAContext::static_fields

static fields present

Definition at line 456 of file dcadec.c.

Referenced by dca_exss_parse_asset_header(), and dca_exss_parse_header().

int DCAContext::mix_metadata

mixing metadata present

Definition at line 457 of file dcadec.c.

Referenced by dca_exss_parse_asset_header(), and dca_exss_parse_header().

int DCAContext::num_mix_configs

number of mix out configurations

Definition at line 458 of file dcadec.c.

Referenced by dca_exss_parse_asset_header(), and dca_exss_parse_header().

int DCAContext::mix_config_num_ch[4]

number of channels in each mix out configuration

Definition at line 459 of file dcadec.c.

Referenced by dca_exss_parse_asset_header(), and dca_exss_parse_header().

int DCAContext::profile

Definition at line 461 of file dcadec.c.

Referenced by dca_decode_frame(), and dca_exss_parse_asset_header().

int DCAContext::debug_flag

used for suppressing repeated error messages output

Definition at line 463 of file dcadec.c.

Referenced by dca_subframe_header(), and dca_subsubframe().

AVFloatDSPContext DCAContext::fdsp

Definition at line 464 of file dcadec.c.

Referenced by dca_decode_frame(), and dca_decode_init().

FFTContext DCAContext::imdct

Definition at line 465 of file dcadec.c.

Referenced by dca_decode_end(), dca_decode_init(), and qmf_32_subbands().

SynthFilterContext DCAContext::synth

Definition at line 466 of file dcadec.c.

Referenced by dca_decode_init(), and qmf_32_subbands().

DCADSPContext DCAContext::dcadsp

Definition at line 467 of file dcadec.c.

Referenced by dca_decode_init(), and lfe_interpolation_fir().

FmtConvertContext DCAContext::fmt_conv

Definition at line 468 of file dcadec.c.

Referenced by dca_decode_init(), and dca_subsubframe().

PutBitContext DCAContext::pb

Definition at line 46 of file dcaenc.c.

Referenced by encode_frame(), put_frame_header(), put_primary_audio_header(), put_subframe(), and put_subframe_samples().

int DCAContext::frame_bits

Definition at line 48 of file dcaenc.c.

Referenced by assign_bits(), and encode_init().

int DCAContext::fullband_channels

Definition at line 49 of file dcaenc.c.

Referenced by calc_masking(), calc_scales(), encode_init(), find_peaks(), init_quantization_noise(), put_primary_audio_header(), put_subframe(), quantize_all(), and subband_transform().

int DCAContext::channels

Definition at line 50 of file dcaenc.c.

Referenced by calc_masking(), encode_init(), lfe_downsample(), shift_history(), and subband_transform().

int DCAContext::lfe_channel

Definition at line 51 of file dcaenc.c.

Referenced by calc_scales(), encode_frame(), encode_init(), find_peaks(), init_quantization_noise(), put_frame_header(), and put_subframe().

int DCAContext::samplerate_index

Definition at line 52 of file dcaenc.c.

Referenced by calc_masking(), encode_init(), and put_frame_header().

int DCAContext::bitrate_index

Definition at line 53 of file dcaenc.c.

Referenced by encode_init(), and put_frame_header().

int DCAContext::channel_config

Definition at line 54 of file dcaenc.c.

Referenced by encode_init(), and put_frame_header().

const int32_t* DCAContext::band_interpolation

Definition at line 55 of file dcaenc.c.

Referenced by encode_init(), and subband_transform().

const int32_t* DCAContext::band_spectrum

Definition at line 56 of file dcaenc.c.

Referenced by encode_init(), walk_band_high(), and walk_band_low().

softfloat DCAContext::lfe_quant

Definition at line 58 of file dcaenc.c.

Referenced by calc_scales(), and put_subframe().

int32_t DCAContext::lfe_peak_cb

Definition at line 59 of file dcaenc.c.

Referenced by calc_scales(), and find_peaks().

int32_t DCAContext::history[512][MAX_CHANNELS]

Definition at line 61 of file dcaenc.c.

Referenced by calc_masking(), lfe_downsample(), shift_history(), and subband_transform().

int32_t DCAContext::subband[SUBBAND_SAMPLES][DCA_SUBBANDS][MAX_CHANNELS]

Definition at line 62 of file dcaenc.c.

Referenced by find_peaks(), quantize_all(), and subband_transform().

int32_t DCAContext::quantized[SUBBAND_SAMPLES][DCA_SUBBANDS][MAX_CHANNELS]

Definition at line 63 of file dcaenc.c.

Referenced by put_subframe_samples(), and quantize_all().

int32_t DCAContext::peak_cb[DCA_SUBBANDS][MAX_CHANNELS]

Definition at line 64 of file dcaenc.c.

Referenced by calc_scales(), find_peaks(), and init_quantization_noise().

int32_t DCAContext::downsampled_lfe[DCA_LFE_SAMPLES]

Definition at line 65 of file dcaenc.c.

Referenced by find_peaks(), lfe_downsample(), and put_subframe().

int32_t DCAContext::masking_curve_cb[SUBSUBFRAMES][256]

Definition at line 66 of file dcaenc.c.

Referenced by calc_masking().

int DCAContext::abits[DCA_SUBBANDS][MAX_CHANNELS]

Definition at line 67 of file dcaenc.c.

Referenced by calc_scales(), init_quantization_noise(), put_subframe(), and put_subframe_samples().

softfloat DCAContext::quant[DCA_SUBBANDS][MAX_CHANNELS]

Definition at line 69 of file dcaenc.c.

Referenced by calc_scales(), and quantize_all().

int32_t DCAContext::eff_masking_curve_cb[256]

Definition at line 70 of file dcaenc.c.

Referenced by calc_masking(), and update_band_masking().

int32_t DCAContext::band_masking_cb[32]

Definition at line 71 of file dcaenc.c.

Referenced by calc_masking(), init_quantization_noise(), and update_band_masking().

int32_t DCAContext::worst_quantization_noise

Definition at line 72 of file dcaenc.c.

Referenced by assign_bits(), and encode_init().

int32_t DCAContext::worst_noise_ever

Definition at line 73 of file dcaenc.c.

Referenced by assign_bits(), and encode_init().

int DCAContext::consumed_bits

Definition at line 74 of file dcaenc.c.

Referenced by assign_bits(), and init_quantization_noise().

The documentation for this struct was generated from the following files:
Generated on Wed Jul 10 2013 23:48:35 for FFmpeg by   doxygen 1.8.2