DVDIOHandler Class Reference

Definition of the DVDIOHandler class. More...

#include <dvd_io_handler.h>

Inheritance diagram for DVDIOHandler:

Public Member Functions
	DVDIOHandler (zmm::String dvdname, int track, int chapter, int audio_stream_id)
	Sets the dvdname to work with.
	~DVDIOHandler ()
virtual void	open (IN enum UpnpOpenFileMode mode)
	Opens dvd for reading (writing is not supported).
virtual int	read (OUT char *buf, IN size_t length)
	Reads a previously opened dvd sequentially.
virtual int	write (OUT char *buf, IN size_t length)
	Writes to a previously opened dvd.
virtual void	seek (IN off_t offset, IN int whence)
	Performs seek on an open dvd.
virtual void	close ()
	Close a previously opened dvd.
off_t	length ()
	Returns the length of the stream in bytes.
virtual void	open (enum UpnpOpenFileMode mode)
	Opens a data for the web server.
virtual int	read (char *buf, size_t length)
	Reads previously opened/initialized data sequentially.
virtual int	write (char *buf, size_t length)
	Writes to previously opened/initialized data sequentially.
virtual void	seek (off_t offset, int whence)
	Performs a seek on an open/initialized data.
void	retain ()
void	release ()
int	getRefCount ()
Static Public Member Functions
static void *	operator new (size_t size)
static void	operator delete (void *ptr)
Protected Attributes
zmm::String	dvdname
	Name of the DVD image.
zmm::Ref< DVDNavReader >	dvd
	Handle of the DVD.
off_t	total_size
unsigned char *	small_buffer
unsigned char *	small_buffer_pos
bool	last_read
mt_atomic_t	_ref_count
pthread_mutex_t	mutex

Detailed Description

Definition of the DVDIOHandler class.

Allows the web server to read from a dvd.

Definition at line 41 of file dvd_io_handler.h.

Constructor & Destructor Documentation

DVDIOHandler::DVDIOHandler	(	zmm::String	dvdname,
		int	track,
		int	chapter,
		int	audio_stream_id
	)

Sets the dvdname to work with.

DVDIOHandler::~DVDIOHandler ( )

Member Function Documentation

virtual void DVDIOHandler::close ( ) [virtual]

Close a previously opened dvd.

Reimplemented from IOHandler.

int Object::getRefCount ( ) [inherited]

Definition at line 78 of file object.cc.

References zmm::Object::_ref_count, and atomic_get().

off_t DVDIOHandler::length ( )

Returns the length of the stream in bytes.

virtual void IOHandler::open ( enum UpnpOpenFileMode mode ) [virtual, inherited]

Opens a data for the web server.

Parameters:

mode

in which the data will be opened (we only support UPNP_READ)

Todo:: Genych, ya tut che to zapamyatowal kak gawno rabotaet? kto filename poluchaet??

Reimplemented in BufferedIOHandler, and IOHandlerBufferHelper.

virtual void DVDIOHandler::open ( IN enum UpnpOpenFileMode mode ) [virtual]

Opens dvd for reading (writing is not supported).

void Object::operator delete ( void * ptr ) [static, inherited]

Definition at line 87 of file object.cc.

References FREE.

void * Object::operator new ( size_t size ) [static, inherited]

Definition at line 83 of file object.cc.

References MALLOC.

virtual int IOHandler::read	(	char *	buf,
		size_t	length
	)			`[virtual, inherited]`

Reads previously opened/initialized data sequentially.

Parameters:

	buf	This buffer will be filled by our read functions.
	length	Number of bytes to read.

Reimplemented in IOHandlerBufferHelper.

Referenced by web_read().

virtual int DVDIOHandler::read	(	OUT char *	buf,
		IN size_t	length
	)			`[virtual]`

Reads a previously opened dvd sequentially.

Parameters:

	buf	Data from the dvd will be copied into this buffer.
	length	Number of bytes to be copied into the buffer.

void Object::release ( ) [inherited]

Definition at line 66 of file object.cc.

References zmm::Object::_ref_count, atomic_dec(), and zmm::Object::mutex.

Referenced by zmm::ArrayBase::clear(), zmm::String::operator=(), DSOHash< zmm::Array< CacheObject > >::releaseData(), DSBHash< VT >::releaseData(), DSOHash< zmm::Array< CacheObject > >::remove(), zmm::ArrayBase::remove(), zmm::ArrayBase::removeUnordered(), zmm::ArrayBase::set(), zmm::ArrayBase::~ArrayBase(), DSOHash< zmm::Array< CacheObject > >::~DSOHash(), zmm::ObjectQueue< AutoscanDirectory >::~ObjectQueue(), zmm::ObjectStack< Element >::~ObjectStack(), and zmm::String::~String().

void Object::retain ( ) [inherited]

Definition at line 58 of file object.cc.

References zmm::Object::_ref_count, atomic_inc(), and zmm::Object::mutex.

Referenced by zmm::ArrayBase::append(), zmm::ObjectQueue< AutoscanDirectory >::enqueue(), zmm::ArrayBase::insert(), zmm::String::operator=(), zmm::ObjectStack< Element >::push(), DSOHash< zmm::Array< CacheObject > >::put(), DSBHash< VT >::put(), zmm::ArrayBase::set(), and zmm::String::String().

virtual void IOHandler::seek	(	off_t	offset,
		int	whence
	)			`[virtual, inherited]`

Performs a seek on an open/initialized data.

Parameters:

	offset	Number of bytes to move in the buffer. For seeking forwards positive values are used, for seeking backwards - negative. Offset must be positive if origin is set to SEEK_SET
	whence	The position to move relative to. SEEK_CUR to move relative to current position, SEEK_END to move relative to the end of file, SEEK_SET to specify an absolute offset.

Reimplemented in IOHandlerBufferHelper.

Referenced by web_seek().

virtual void DVDIOHandler::seek	(	IN off_t	offset,
		IN int	whence
	)			`[virtual]`

Performs seek on an open dvd.

Parameters:

	offset	Number of bytes to move in the dvd. For seeking forwards positive values are used, for seeking backwards - negative. Offset must be positive if origin is set to SEEK_SET
	whence	The position to move relative to. SEEK_CUR to move relative to current position, SEEK_END to move relative to the end of dvd, SEEK_SET to specify an absolute offset.