BufferedImageMultiVideoSource Class Reference

#include <BufferedImageMultiVideoSource.hh>

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Detailed Description

It uses a multi-stream behaviour to store many image streams.

Definition at line 42 of file BufferedImageMultiVideoSource.hh.

Public Member Functions

BufferedImageMultiVideoSource (unsigned int streams_num, on_parsable_image_cb *f, void *parsable_image_callback_data, BaseInputVideo *input_single_video)

Constructor.

virtual ~BufferedImageMultiVideoSource ()

bool init_device ()

bool is_multi_stream ()

virtual IplImage * get_next_frame ()

Function that grabs the "next" frame in a stream, a file or a webcam.

IplImage * get_next_frame_by_stream_id (int stream_id)

Static Public Member Functions

static void add_image_by_stream_id (IplImage *image, int stream_id, char *__unused__, void *callback_data)

Static function.

Private Attributes

on_parsable_image_cb * f_parsable_cb

Function pointer to the parsing method. It can be for example a function of the OmniStuff library.

vector< list< IplImage * > * > * _streams_vector

A list of IplImage pointers.

unsigned int _streams_num

Total number of stream the class will manage.

BaseInputVideo * _input_single_video

Instance of a BaseInputVideo concrete class.

bool _initialized

Specify whether the class is initialized or not.

void * _parsable_image_callback_data

The host "this" pointer class which will maintain the conjunction between the streamer library and the image parser one. See BaseInputVideo for schemas.

Constructor & Destructor Documentation

BufferedImageMultiVideoSource::BufferedImageMultiVideoSource	(	unsigned int	streams_num,
		on_parsable_image_cb *	f,
		void *	parsable_image_callback_data,
		BaseInputVideo *	input_single_video
	)

Parameters:

	streams_num	Number of streams this class will manage. They'll range from 0 to stream_num-1.
	f	Callback function for parsing purposes.
	parsable_image_callback_data	User data to pass to the callback function
	input_single_video	Instance of a SingleVideoSource class. It can be a FileSingleVideoSource, a HardwareSingleVideoSource and so on...

See also:: BaseInputVideo

Definition at line 24 of file BufferedImageMultiVideoSource.cpp.

References _initialized, _input_single_video, _streams_vector, DEBUG_PRINT, BaseInputVideo::init_device(), and NULL.

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BufferedImageMultiVideoSource::~BufferedImageMultiVideoSource ( ) [virtual]

Definition at line 42 of file BufferedImageMultiVideoSource.cpp.

References _initialized, _streams_vector, and NULL.

Member Function Documentation

void BufferedImageMultiVideoSource::add_image_by_stream_id	(	IplImage *	image,
		int	stream_id,
		char *	__unused__,
		void *	callback_data
	)			`[static]`

Will add a parsed image to the specified stream.

Warning:: The class will *not* take an internal copy of image in the _streams_vector list, but only it's pointer. !*DO NOT FREE*! the image when you call this function.

Reimplemented from BaseInputVideo.

Definition at line 87 of file BufferedImageMultiVideoSource.cpp.

References _initialized, _streams_vector, init_device(), and NULL.

Referenced by StreamerCtrlThread::initializeOmniStuff().

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IplImage * BufferedImageMultiVideoSource::get_next_frame ( ) [virtual]

Returns:: the IplImage grabbed from the stream.

Note:: the returned IplImage* must be freed by the caller

Implements BaseInputVideo.

Definition at line 180 of file BufferedImageMultiVideoSource.cpp.

References _streams_num, get_next_frame_by_stream_id(), and NULL.

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IplImage * BufferedImageMultiVideoSource::get_next_frame_by_stream_id ( int stream_id ) [virtual]

Note:: The returned IplImage* must be freed by the caller.
The returned image will be removed from the list.

Implements BaseInputVideo.

Definition at line 108 of file BufferedImageMultiVideoSource.cpp.

References _initialized, _input_single_video, _parsable_image_callback_data, _streams_vector, DEBUG_PRINT, f_parsable_cb, BaseInputVideo::get_next_frame(), init_device(), and NULL.

Referenced by get_next_frame().

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bool BufferedImageMultiVideoSource::init_device ( ) [virtual]

See also:: BaseInputVideo::init_device

Implements BaseInputVideo.

Definition at line 67 of file BufferedImageMultiVideoSource.cpp.

References _initialized, _streams_num, _streams_vector, and NULL.

Referenced by add_image_by_stream_id(), and get_next_frame_by_stream_id().

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bool BufferedImageMultiVideoSource::is_multi_stream ( ) [virtual]

See also:: BaseInputVideo::is_multi_stream

Implements BaseInputVideo.

Definition at line 175 of file BufferedImageMultiVideoSource.cpp.

Member Data Documentation

bool BufferedImageMultiVideoSource::_initialized [private]

Definition at line 111 of file BufferedImageMultiVideoSource.hh.

Referenced by add_image_by_stream_id(), BufferedImageMultiVideoSource(), get_next_frame_by_stream_id(), init_device(), and ~BufferedImageMultiVideoSource().

BaseInputVideo* BufferedImageMultiVideoSource::_input_single_video [private]

Definition at line 108 of file BufferedImageMultiVideoSource.hh.

Referenced by BufferedImageMultiVideoSource(), and get_next_frame_by_stream_id().

void* BufferedImageMultiVideoSource::_parsable_image_callback_data [private]

Definition at line 118 of file BufferedImageMultiVideoSource.hh.

Referenced by get_next_frame_by_stream_id().

unsigned int BufferedImageMultiVideoSource::_streams_num [private]

Definition at line 105 of file BufferedImageMultiVideoSource.hh.

Referenced by get_next_frame(), and init_device().

vector< list<IplImage*>* >* BufferedImageMultiVideoSource::_streams_vector [private]

Definition at line 102 of file BufferedImageMultiVideoSource.hh.

Referenced by add_image_by_stream_id(), BufferedImageMultiVideoSource(), get_next_frame_by_stream_id(), init_device(), and ~BufferedImageMultiVideoSource().

on_parsable_image_cb* BufferedImageMultiVideoSource::f_parsable_cb [private]

Definition at line 97 of file BufferedImageMultiVideoSource.hh.

Referenced by get_next_frame_by_stream_id().

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

Generated on Tue Dec 26 10:35:32 2006 for Omnimeeting by

1.4.7


Public Member Functions
	BufferedImageMultiVideoSource (unsigned int streams_num, on_parsable_image_cb f, void parsable_image_callback_data, BaseInputVideo *input_single_video)
	Constructor.
virtual	~BufferedImageMultiVideoSource ()
bool	init_device ()
bool	is_multi_stream ()
virtual IplImage *	get_next_frame ()
	Function that grabs the "next" frame in a stream, a file or a webcam.
IplImage *	get_next_frame_by_stream_id (int stream_id)
Static Public Member Functions
static void	add_image_by_stream_id (IplImage image, int stream_id, char __unused__, void *callback_data)
	Static function.
Private Attributes
on_parsable_image_cb *	f_parsable_cb
	Function pointer to the parsing method. It can be for example a function of the OmniStuff library.
vector< list< IplImage * > * > *	_streams_vector
	A list of IplImage pointers.
unsigned int	_streams_num
	Total number of stream the class will manage.
BaseInputVideo *	_input_single_video
	Instance of a BaseInputVideo concrete class.
bool	_initialized
	Specify whether the class is initialized or not.
void *	_parsable_image_callback_data
	The host "this" pointer class which will maintain the conjunction between the streamer library and the image parser one. See BaseInputVideo for schemas.