KviOggTheoraDecoder Class Reference

An ogg/theora+irct decoder class; accepts a proper ogg stream, outputs argb32 images and binary text. More...

#include <KviOggTheoraDecoder.h>

Public Member Functions
void	addData (KviDataBuffer *stream)
	Feeds the decoded with some received data to decode. More...
	KviOggTheoraDecoder (KviDataBuffer *videoSignal, KviDataBuffer *textSignal)
	Constructs the KviOggTheoraDecoder object. More...
virtual	~KviOggTheoraDecoder ()
	Destroys the KviTheoraEncoder object. More...

Private Member Functions
int	queue_page (ogg_page *page)
	Internal function that queues an ogg page to the codec decoders. More...
void	video_write (void)
	Internal function that takes a theora yuv buffer, transforms it and appends to the video stream. More...

Private Attributes
KviOggTheoraGeometry	geometry
int	irct_p
int	lu_B [256]
int	lu_GU [256]
int	lu_GV [256]
int	lu_R [256]
int	lu_Y [256]
KviDataBuffer *	m_pTextSignal
KviDataBuffer *	m_pVideoSignal
ogg_page	og
ogg_packet	op
ogg_sync_state	oy
int	pp_inc
int	pp_level
int	pp_level_max
th_pixel_fmt	px_fmt
unsigned char *	RGBbuffer
int	stateflag
th_comment	tc
th_dec_ctx *	td
bool	thda
int	theora_p
bool	thtic
th_info	ti
ogg_stream_state	to
th_setup_info *	ts
ogg_int64_t	videobuf_granulepos
int	videobuf_ready
double	videobuf_time
ogg_stream_state	zo

Detailed Description

An ogg/theora+irct decoder class; accepts a proper ogg stream, outputs argb32 images and binary text.

Constructor & Destructor Documentation

KviOggTheoraDecoder::KviOggTheoraDecoder	(	KviDataBuffer *	videoSignal,
		KviDataBuffer *	textSignal
	)

Constructs the KviOggTheoraDecoder object.

Parameters

videoSignal	the output video stream object
textSignal	the output text stream object

Returns

KviOggTheoraDecoder

References i, and NULL.

KviOggTheoraDecoder::~KviOggTheoraDecoder ( )

virtual

Destroys the KviTheoraEncoder object.

References KviOggIrcText::irct_encode_clear().

Member Function Documentation

void KviOggTheoraDecoder::addData

(

KviDataBuffer *

stream

)

Feeds the decoded with some received data to decode.

Parameters

stream

the databuffer containing the received data

Returns

void

References KviDataBuffer::clear(), KviDataBuffer::data(), h, KviOggIrcText::irct_decode_headerin(), KviOggIrcText::irct_decode_packetin(), KviDataBuffer::size(), and w.

Referenced by DccVideoTheoraCodec::decode().

int KviOggTheoraDecoder::queue_page ( ogg_page *  page )

private

Internal function that queues an ogg page to the codec decoders.

Returns

int

void KviOggTheoraDecoder::video_write ( void  )

private

Internal function that takes a theora yuv buffer, transforms it and appends to the video stream.

Returns

int

References ARGB32_BPP, g, i, j, OC_CLAMP255, r, and y.

Member Data Documentation

KviOggTheoraGeometry KviOggTheoraDecoder::geometry

private

Stream geometry definition

int KviOggTheoraDecoder::irct_p

private

True if the ogg stream contains an irct stream

int KviOggTheoraDecoder::lu_B[256]

private

Surface used in yuv->rgb processing (B)

int KviOggTheoraDecoder::lu_GU[256]

private

Surface used in yuv->rgb processing (GU)

int KviOggTheoraDecoder::lu_GV[256]

private

Surface used in yuv->rgb processing (GV)

int KviOggTheoraDecoder::lu_R[256]

private

Surface used in yuv->rgb processing (R)

int KviOggTheoraDecoder::lu_Y[256]

private

Surface used in yuv->rgb processing (Y)

KviDataBuffer* KviOggTheoraDecoder::m_pTextSignal

private

Output text stream pointer

KviDataBuffer* KviOggTheoraDecoder::m_pVideoSignal

private

Output video stream pointer

ogg_page KviOggTheoraDecoder::og

private

One Ogg bitstream page. Vorbis packets are inside

ogg_packet KviOggTheoraDecoder::op

private

One raw packet of encoded data

ogg_sync_state KviOggTheoraDecoder::oy

private

int KviOggTheoraDecoder::pp_inc

private

Theora postprocessing: increment

int KviOggTheoraDecoder::pp_level

private

Theora postprocessing: current level

int KviOggTheoraDecoder::pp_level_max

private

Theora postprocessing: max level

th_pixel_fmt KviOggTheoraDecoder::px_fmt

private

Theora stream pixel format definition

unsigned char* KviOggTheoraDecoder::RGBbuffer

private

RGB decoded surface pointer

int KviOggTheoraDecoder::stateflag

private

Internal flag used in stream processing

th_comment KviOggTheoraDecoder::tc

private

Theora stream comments struct

th_dec_ctx* KviOggTheoraDecoder::td

private

Theora stream decoding struct

bool KviOggTheoraDecoder::thda

private

Theora decode alloc state

int KviOggTheoraDecoder::theora_p

private

True if the ogg stream contains a theora stream

bool KviOggTheoraDecoder::thtic

private

Theora setup clear state

th_info KviOggTheoraDecoder::ti

private

Theora stream info struct

ogg_stream_state KviOggTheoraDecoder::to

private

Take physical pages, weld into a logical stream of theora packets

th_setup_info* KviOggTheoraDecoder::ts

private

Theora stream setup info struct

ogg_int64_t KviOggTheoraDecoder::videobuf_granulepos

private

Single frame video buffering : granule position

int KviOggTheoraDecoder::videobuf_ready

private

Single frame video buffering : ready state

double KviOggTheoraDecoder::videobuf_time

private

Single frame video buffering : duration

ogg_stream_state KviOggTheoraDecoder::zo

private

Take physical pages, weld into a logical stream of irct packets

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

• src/kvilib/ext/KviOggTheoraDecoder.h
• src/kvilib/ext/KviOggTheoraDecoder.cpp