FileSingleVideoSource Class Reference

#include <FileSingleVideoSource.hh>

Inheritance diagram for FileSingleVideoSource:

[legend]Collaboration diagram for FileSingleVideoSource:

[legend]List of all members.

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Detailed Description

It uses a single-stream behaviour to retrieve one stream of IplImage(s) from a file from disk.

Definition at line 36 of file FileSingleVideoSource.hh.

Public Member Functions
	FileSingleVideoSource (char *file_path)
virtual	~FileSingleVideoSource ()
bool	init_device ()
	Init device. It can be a webcam, a framegrabber or simpler a buffered class.
bool	is_multi_stream ()
	Determine if the derived class is of type multi-stream or single-stream.
IplImage *	get_next_frame ()
	Get the next image in the stream.
virtual IplImage *	get_next_frame_by_stream_id (int stream_id)
	Redefined virtual function for multi video source.
virtual void	add_image_by_stream_id (IplImage *image, int stream_id, char *__unused__, void *callback_data)
	Redefined virtual function for multi video source.
Private Attributes
bool	_initialized
	Specify whether the class is initialized or not.
char *	_file_path
	File path on disk.
CvCapture *	_file_input
	OpenCV capture structure.

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Constructor & Destructor Documentation

FileSingleVideoSource::FileSingleVideoSource

(

char *

file_path

)

Definition at line 23 of file FileSingleVideoSource.cpp.

References _file_path, _initialized, and NULL.

FileSingleVideoSource::~FileSingleVideoSource

(

)

[virtual]

Definition at line 33 of file FileSingleVideoSource.cpp.

References _file_input, _file_path, and NULL.

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Member Function Documentation

void FileSingleVideoSource::add_image_by_stream_id	(	IplImage *	image,
		int	stream_id,
		char *	__unused__,
		void *	callback_data
	)			[virtual]

We don't need them here

Reimplemented from BaseInputVideo.

Definition at line 90 of file FileSingleVideoSource.cpp.

IplImage * FileSingleVideoSource::get_next_frame

(

)

[virtual]

Depends on OpenCV grabbing context.

Returns:

The next image in the stream.

Note:

The returned IplImage* must be freed by the caller.

Implements BaseInputVideo.

Definition at line 58 of file FileSingleVideoSource.cpp.

References _file_input, _initialized, DEBUG_PRINT, init_device(), and NULL.

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IplImage * FileSingleVideoSource::get_next_frame_by_stream_id

(

int

stream_id

)

[virtual]

We don't need them here

Implements BaseInputVideo.

Definition at line 85 of file FileSingleVideoSource.cpp.

References NULL.

bool FileSingleVideoSource::init_device

(

)

[virtual]

Implements BaseInputVideo.

Definition at line 43 of file FileSingleVideoSource.cpp.

References _file_input, _file_path, _initialized, DEBUG_PRINT, and NULL.

Referenced by get_next_frame().

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bool FileSingleVideoSource::is_multi_stream

(

)

[virtual]

Returns:

true if the class is multistream, false if it's singlestream.

Implements BaseInputVideo.

Definition at line 96 of file FileSingleVideoSource.cpp.

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Member Data Documentation

CvCapture* FileSingleVideoSource::_file_input [private]

Definition at line 68 of file FileSingleVideoSource.hh.

Referenced by get_next_frame(), init_device(), and ~FileSingleVideoSource().

char* FileSingleVideoSource::_file_path [private]

Better if it's an absolute path.

Definition at line 65 of file FileSingleVideoSource.hh.

Referenced by FileSingleVideoSource(), init_device(), and ~FileSingleVideoSource().

bool FileSingleVideoSource::_initialized [private]

Definition at line 62 of file FileSingleVideoSource.hh.

Referenced by FileSingleVideoSource(), get_next_frame(), and init_device().

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

• FileSingleVideoSource.hh
• FileSingleVideoSource.cpp

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