BIAS::VideoStream Class Reference

To allow capturing of camera image to disk efficiently, (avoid

multiple memcopy operations), this class defines an interface to file containing one header and multiple images. More...

#include <Image/VideoStream.hh>

Collaboration diagram for BIAS::VideoStream:

Classes
class	VSHeader
class	VSImageHeader

Public Member Functions
int	Close ()
int	Open (const std::string &file)
BIAS::VideoStream &	operator= (const BIAS::VideoStream &src)
	assignment operator is mandatory because copy constructor is. More...
void	PrintHeader ()
int	SplitIntoFiles (const std::string &prefix, unsigned int start=0, unsigned int count=0)
	VideoStream ()
	VideoStream (const std::string &file)
	VideoStream (const VideoStream &src)
	copy constructor mandatory because of ifstrseam member More...
virtual	~VideoStream ()
	destructor mandatory because copy constructor is. More...

Protected Attributes
unsigned long int	FileSize_
VSHeader	Header_
std::ifstream	Ifs_
unsigned int	ImageSize_
unsigned int	NumImages_

Detailed Description

To allow capturing of camera image to disk efficiently, (avoid

multiple memcopy operations), this class defines an interface to file containing one header and multiple images.

All data for write() must be aligned to 512-byte boundaries to allow unbuffered operations with open(,O_DIRECT). This can only guaranteed by circumventing all C++ stuff like new() and operator<<(). These video stream file are written by MIP::VideoSource_() and can be split into multiple images with this class.

Author

Jan-Friso Evers-Senne

Examples:

ExampleVideoStream.cpp.

Definition at line 35 of file VideoStream.hh.

Constructor & Destructor Documentation

VideoStream::~VideoStream ( )

virtual

destructor mandatory because copy constructor is.

Author

Jan Woetzel 08/2005

Definition at line 13 of file VideoStream.cpp.

VideoStream::VideoStream

(

)

Definition at line 16 of file VideoStream.cpp.

VideoStream::VideoStream

(

const std::string &

file

)

Definition at line 22 of file VideoStream.cpp.

VideoStream::VideoStream

(

const VideoStream &

src

)

copy constructor mandatory because of ifstrseam member

Author

Jan Woetzel 08/2005

Definition at line 30 of file VideoStream.cpp.

Member Function Documentation

int VideoStream::Close

(

)

Definition at line 80 of file VideoStream.cpp.

int VideoStream::Open

(

const std::string &

file

)

Examples:

ExampleVideoStream.cpp.

Definition at line 53 of file VideoStream.cpp.

BIAS::VideoStream & VideoStream::operator=

(

const BIAS::VideoStream &

src

)

assignment operator is mandatory because copy constructor is.

Author

Jan Woetzel 08/2005

Definition at line 35 of file VideoStream.cpp.

References FileSize_, Header_, ImageSize_, and NumImages_.

void VideoStream::PrintHeader

(

)

Examples:

ExampleVideoStream.cpp.

Definition at line 134 of file VideoStream.cpp.

int VideoStream::SplitIntoFiles	(	const std::string &	prefix,
		unsigned int	start = 0,
		unsigned int	count = 0
	)

Examples:

ExampleVideoStream.cpp.

Definition at line 87 of file VideoStream.cpp.

References BIAS::Image< StorageType >::GetImageData(), BIAS::ImageBase::GetUID(), BIAS::Image< StorageType >::Init(), BIAS::UUID::SetFromString(), BIAS::ImageBase::SetUID(), BIAS::VideoStream::VSImageHeader::tsec, BIAS::VideoStream::VSImageHeader::tusec, BIAS::Camera< StorageType >::UpdateMetaData(), and BIAS::VideoStream::VSImageHeader::uuid.

Member Data Documentation

unsigned long int BIAS::VideoStream::FileSize_

protected

Definition at line 100 of file VideoStream.hh.

Referenced by operator=().

VSHeader BIAS::VideoStream::Header_

protected

Definition at line 95 of file VideoStream.hh.

Referenced by operator=().

std::ifstream BIAS::VideoStream::Ifs_

protected

Definition at line 96 of file VideoStream.hh.

unsigned int BIAS::VideoStream::ImageSize_

protected

Definition at line 98 of file VideoStream.hh.

Referenced by operator=().

unsigned int BIAS::VideoStream::NumImages_

protected

Definition at line 99 of file VideoStream.hh.

Referenced by operator=().

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

• Image/VideoStream.hh
• Image/VideoStream.cpp