APEContext Struct Reference

Decoder context. More...


Data Fields

AVCodecContext * avctx
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
APEFrame * frames
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 130 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 131 of file apedec.c.

Referenced by ape_decode_init(), 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

Definition at line 134 of file apedec.c.

Referenced by ape_decode_frame(), ape_decode_init(), ape_dumpinfo(), ape_read_header(), and ape_unpack_mono().

int APEContext::compression_level

compression levels

Definition at line 138 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 142 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 156 of file apedec.c.

Referenced by ape_decode_close(), and ape_decode_frame().

uint8_t* APEContext::data_end

frame data end

Definition at line 157 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 146 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 147 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 133 of file apedec.c.

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

int APEContext::error

Definition at line 160 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 137 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 149 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 154 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 140 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 132 of file apedec.c.

Referenced by ape_decode_frame(), and ape_decode_init().

int APEContext::frameflags

frame flags

Definition at line 143 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 139 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 144 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 158 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 151 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 152 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 153 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 135 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:
Generated on Fri Oct 26 02:43:55 2012 for FFmpeg by  doxygen 1.5.8