vbilut.h File Reference

Go to the source code of this file.

Enumerations
enum	vbimode { VBI_IVTV, VBI_DVB, VBI_DVB_SUBTITLE }
Functions
int	hamm8 (const uint8_t *p, int *err)
int	hamm84 (const uint8_t *p, int *err)
int	hamm16 (const uint8_t *p, int *err)
Variables
const unsigned char	lang_chars [][16]
const char	chartab_original []
const char	chartab_swedish []
const unsigned short	hammtab []
const uint8_t	hamm84tab []
const uint8_t	unham84tab []
const uint8_t	vbi_bit_reverse []
const char *	formats []
const char *	subtitles []
const char	hamm24par [][256]
	This table generates the parity checks for hamm24/18 decoding.
const char	hamm24val []
	Table to extract the lower 4 bit from hamm24/18 encoded bytes.
const short	hamm24err []
	Mapping from parity checks made by table hamm24par to error results return by hamm24.
const int	hamm24cor []
	Mapping from parity checks made by table hamm24par to faulty bit in the decoded 18 bit word.

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Enumeration Type Documentation

enum vbimode

Enumerator:

VBI_IVTV
VBI_DVB	< IVTV packet
VBI_DVB_SUBTITLE	< DVB packet < DVB subtitle packet

Definition at line 20 of file vbilut.h.

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Function Documentation

int hamm8	(	const uint8_t *	p,
		int *	err
	)

Definition at line 328 of file vbilut.cpp.

Referenced by vt_line().

int hamm84	(	const uint8_t *	p,
		int *	err
	)

Definition at line 335 of file vbilut.cpp.

Referenced by TeletextDecoder::Decode().

int hamm16	(	const uint8_t *	p,
		int *	err
	)

Definition at line 345 of file vbilut.cpp.

Referenced by TeletextDecoder::Decode(), and vt_line().

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Variable Documentation

const unsigned char lang_chars[][16]

Definition at line 6 of file vbilut.h.

const char chartab_original[]

Definition at line 47 of file vbilut.cpp.

const char chartab_swedish[]

const unsigned short hammtab[]

Definition at line 52 of file vbilut.cpp.

Referenced by hamm16(), and hamm8().

const uint8_t hamm84tab[]

Definition at line 88 of file vbilut.cpp.

Referenced by hamm84().

const uint8_t unham84tab[]

Definition at line 118 of file vbilut.cpp.

const uint8_t vbi_bit_reverse[]

Definition at line 154 of file vbilut.cpp.

Referenced by CC608Decoder::DecodeVPS().

const char* formats[]

Definition at line 190 of file vbilut.cpp.

Referenced by CC608Decoder::DecodeWSS(), CoreAudioData::FindAC3Stream(), ZMPlayer::getXvPortId(), Player::getXvPortId(), VideoOutputXv::InitXVideo(), CoreAudioData::OpenSPDIF(), and CoreAudioData::ResetStream().

const char* subtitles[]

Definition at line 202 of file vbilut.cpp.

Referenced by CC608Decoder::DecodeWSS(), MTD::sendMediaReport(), and TitleDialog::showCurrentTitle().

const char hamm24par[][256]

This table generates the parity checks for hamm24/18 decoding.

bit 0 is for test A, 1 for B, ... thanks to R. Gancarz for this fine table *g*

Definition at line 214 of file vbilut.cpp.

Referenced by chk_parity(), and hamm24().

const char hamm24val[]

Table to extract the lower 4 bit from hamm24/18 encoded bytes.

Definition at line 274 of file vbilut.cpp.

Referenced by hamm24().

const short hamm24err[]

Mapping from parity checks made by table hamm24par to error results return by hamm24.

(0 = no error, 0x0100 = single bit error, 0x1000 = double error)

Definition at line 300 of file vbilut.cpp.

Referenced by hamm24().

const int hamm24cor[]

Mapping from parity checks made by table hamm24par to faulty bit in the decoded 18 bit word.

Definition at line 316 of file vbilut.cpp.

Referenced by hamm24().