APEContext Struct Reference

Decoder context. More...

Data Fields

AVCodecContextavctx
AVFrame frame
DSPContext dsp
int channels
int samples
 samples left to decode in current frame
int fileversion
 codec version, very important in decoding process
int compression_level
 compression levels
int fset
 which filter set to use (calculated from compression level)
int flags
 global decoder flags
uint32_t CRC
 frame CRC
int frameflags
 frame flags
APEPredictor predictor
 predictor used for final reconstruction
int32_t decoded0 [BLOCKS_PER_LOOP]
 decoded data for the first channel
int32_t decoded1 [BLOCKS_PER_LOOP]
 decoded data for the second channel
int16_t * filterbuf [APE_FILTER_LEVELS]
 filter memory
APERangecoder rc
 rangecoder used to decode actual values
APERice riceX
 rice code parameters for the second channel
APERice riceY
 rice code parameters for the first channel
APEFilter filters [APE_FILTER_LEVELS][2]
 filters used for reconstruction
uint8_t * data
 current frame data
uint8_t * data_end
 frame data end
const uint8_t * ptr
 current position in frame data
int error
uint32_t junklength
uint32_t firstframe
uint32_t totalsamples
int currentframe
APEFrameframes
char magic [4]
int16_t fileversion
int16_t padding1
uint32_t descriptorlength
uint32_t headerlength
uint32_t seektablelength
uint32_t wavheaderlength
uint32_t audiodatalength
uint32_t audiodatalength_high
uint32_t wavtaillength
uint8_t md5 [16]
uint16_t compressiontype
uint16_t formatflags
uint32_t blocksperframe
uint32_t finalframeblocks
uint32_t totalframes
uint16_t bps
uint16_t channels
uint32_t samplerate
uint32_t * seektable

Detailed Description

Decoder context.

Definition at line 131 of file apedec.c.

Field Documentation

uint32_t APEContext::audiodatalength

Definition at line 69 of file ape.c.

Referenced by ape_dumpinfo(), and ape_read_header().

uint32_t APEContext::audiodatalength_high

Definition at line 70 of file ape.c.

Referenced by ape_dumpinfo(), and ape_read_header().

AVCodecContext* APEContext::avctx

Definition at line 132 of file apedec.c.

Referenced by ape_decode_init(), ape_decode_value(), ape_unpack_mono(), and ape_unpack_stereo().

uint32_t APEContext::blocksperframe

Definition at line 77 of file ape.c.

Referenced by ape_dumpinfo(), ape_read_header(), and ape_read_packet().

uint16_t APEContext::bps

Definition at line 80 of file ape.c.

Referenced by ape_dumpinfo(), and ape_read_header().

uint16_t APEContext::channels

Definition at line 81 of file ape.c.

int APEContext::channels
int APEContext::compression_level

compression levels

Definition at line 139 of file apedec.c.

Referenced by ape_decode_init().

uint16_t APEContext::compressiontype

Definition at line 75 of file ape.c.

Referenced by ape_dumpinfo(), and ape_read_header().

uint32_t APEContext::CRC

frame CRC

Definition at line 143 of file apedec.c.

Referenced by init_entropy_decoder().

int APEContext::currentframe

Definition at line 58 of file ape.c.

Referenced by ape_read_header(), ape_read_packet(), and ape_read_seek().

uint8_t* APEContext::data

current frame data

Definition at line 157 of file apedec.c.

Referenced by ape_decode_close(), and ape_decode_frame().

uint8_t* APEContext::data_end

frame data end

Definition at line 158 of file apedec.c.

Referenced by ape_decode_frame(), init_entropy_decoder(), and range_dec_normalize().

int32_t APEContext::decoded0[BLOCKS_PER_LOOP]

decoded data for the first channel

Definition at line 147 of file apedec.c.

Referenced by ape_decode_frame(), ape_unpack_mono(), ape_unpack_stereo(), entropy_decode(), predictor_decode_mono(), and predictor_decode_stereo().

int32_t APEContext::decoded1[BLOCKS_PER_LOOP]

decoded data for the second channel

Definition at line 148 of file apedec.c.

Referenced by ape_decode_frame(), ape_unpack_mono(), ape_unpack_stereo(), entropy_decode(), and predictor_decode_stereo().

uint32_t APEContext::descriptorlength

Definition at line 65 of file ape.c.

Referenced by ape_dumpinfo(), and ape_read_header().

DSPContext APEContext::dsp

Definition at line 134 of file apedec.c.

Referenced by ape_decode_frame(), ape_decode_init(), and do_apply_filter().

int APEContext::error

Definition at line 161 of file apedec.c.

Referenced by ape_decode_frame(), range_dec_normalize(), and range_get_symbol().

int16_t APEContext::fileversion

Definition at line 63 of file ape.c.

int APEContext::fileversion

codec version, very important in decoding process

Definition at line 138 of file apedec.c.

Referenced by ape_decode_init(), ape_decode_value(), ape_dumpinfo(), ape_read_header(), apply_filter(), and init_entropy_decoder().

int16_t* APEContext::filterbuf[APE_FILTER_LEVELS]

filter memory

Definition at line 150 of file apedec.c.

Referenced by ape_decode_close(), ape_decode_init(), and init_frame_decoder().

APEFilter APEContext::filters[APE_FILTER_LEVELS][2]

filters used for reconstruction

Definition at line 155 of file apedec.c.

Referenced by ape_apply_filters(), and init_frame_decoder().

uint32_t APEContext::finalframeblocks

Definition at line 78 of file ape.c.

Referenced by ape_dumpinfo(), ape_read_header(), and ape_read_packet().

uint32_t APEContext::firstframe

Definition at line 56 of file ape.c.

Referenced by ape_dumpinfo(), and ape_read_header().

int APEContext::flags

global decoder flags

Definition at line 141 of file apedec.c.

Referenced by ape_decode_init().

uint16_t APEContext::formatflags

Definition at line 76 of file ape.c.

Referenced by ape_dumpinfo(), and ape_read_header().

AVFrame APEContext::frame

Definition at line 133 of file apedec.c.

Referenced by ape_decode_frame(), and ape_decode_init().

int APEContext::frameflags

frame flags

Definition at line 144 of file apedec.c.

Referenced by ape_decode_frame(), ape_unpack_mono(), ape_unpack_stereo(), entropy_decode(), and init_entropy_decoder().

APEFrame* APEContext::frames

Definition at line 59 of file ape.c.

Referenced by ape_dumpinfo(), ape_read_close(), ape_read_header(), and ape_read_packet().

int APEContext::fset

which filter set to use (calculated from compression level)

Definition at line 140 of file apedec.c.

Referenced by ape_apply_filters(), ape_decode_init(), and init_frame_decoder().

uint32_t APEContext::headerlength

Definition at line 66 of file ape.c.

Referenced by ape_dumpinfo(), and ape_read_header().

uint32_t APEContext::junklength

Definition at line 55 of file ape.c.

Referenced by ape_dumpinfo(), and ape_read_header().

char APEContext::magic[4]

Definition at line 62 of file ape.c.

Referenced by ape_dumpinfo().

uint8_t APEContext::md5[16]

Definition at line 72 of file ape.c.

Referenced by ape_dumpinfo(), and ape_read_header().

int16_t APEContext::padding1

Definition at line 64 of file ape.c.

Referenced by ape_read_header().

APEPredictor APEContext::predictor

predictor used for final reconstruction

Definition at line 145 of file apedec.c.

Referenced by init_predictor_decoder(), predictor_decode_mono(), and predictor_decode_stereo().

const uint8_t* APEContext::ptr

current position in frame data

Definition at line 159 of file apedec.c.

Referenced by ape_decode_frame(), init_entropy_decoder(), range_dec_normalize(), and range_start_decoding().

APERangecoder APEContext::rc

rangecoder used to decode actual values

Definition at line 152 of file apedec.c.

Referenced by range_dec_normalize(), range_decode_culfreq(), range_decode_culshift(), range_decode_update(), and range_start_decoding().

APERice APEContext::riceX

rice code parameters for the second channel

Definition at line 153 of file apedec.c.

Referenced by entropy_decode(), and init_entropy_decoder().

APERice APEContext::riceY

rice code parameters for the first channel

Definition at line 154 of file apedec.c.

Referenced by entropy_decode(), and init_entropy_decoder().

uint32_t APEContext::samplerate

Definition at line 82 of file ape.c.

Referenced by ape_dumpinfo(), and ape_read_header().

int APEContext::samples

samples left to decode in current frame

Definition at line 136 of file apedec.c.

Referenced by ape_decode_frame(), and ape_flush().

uint32_t* APEContext::seektable

Definition at line 85 of file ape.c.

Referenced by ape_dumpinfo(), ape_read_close(), and ape_read_header().

uint32_t APEContext::seektablelength

Definition at line 67 of file ape.c.

Referenced by ape_dumpinfo(), and ape_read_header().

uint32_t APEContext::totalframes

Definition at line 79 of file ape.c.

Referenced by ape_dumpinfo(), ape_read_header(), and ape_read_packet().

uint32_t APEContext::totalsamples

Definition at line 57 of file ape.c.

Referenced by ape_dumpinfo(), and ape_read_header().

uint32_t APEContext::wavheaderlength

Definition at line 68 of file ape.c.

Referenced by ape_dumpinfo(), and ape_read_header().

uint32_t APEContext::wavtaillength

Definition at line 71 of file ape.c.

Referenced by ape_dumpinfo(), and ape_read_header().


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