CVD::LocalVideoBuffer< T > Class Template Reference
[Video buffers]

#include <localvideobuffer.h>

Inheritance diagram for CVD::LocalVideoBuffer< T >:

List of all members.

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Detailed Description

template<class T>
class CVD::LocalVideoBuffer< T >

Base class for a VideoBuffer which manages its own memory for each VideoFrame that it provides.

(In contrast to most buffers, where the memory is managed by the video hardware.)

Parameters:

T

The pixel type of the video frames

Definition at line 36 of file localvideobuffer.h.

Public Member Functions
	LocalVideoBuffer (typename VideoBufferType::Type t)
virtual	~LocalVideoBuffer ()
virtual ImageRef	size ()=0
virtual LocalVideoFrame< T > *	get_frame ()=0
virtual void	put_frame (VideoFrame< T > *f)=0
virtual bool	frame_pending ()=0
virtual void	seek_to (double)

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Member Function Documentation

template<class T>

virtual ImageRef CVD::LocalVideoBuffer< T >::size

(

)

[pure virtual]

The size of the VideoFrames returned by this buffer.

Implements CVD::VideoBuffer< T >.

Implemented in CVD::ColourspaceBuffer< T, From >, CVD::DiskBuffer2< T >, CVD::ServerPushJpegBuffer< C >, and CVD::VideoFileBuffer< T >.

template<class T>

virtual LocalVideoFrame<T>* CVD::LocalVideoBuffer< T >::get_frame

(

)

[pure virtual]

Returns the next frame from the buffer. This function blocks until a frame is ready.

Implements CVD::VideoBuffer< T >.

Implemented in CVD::ColourspaceBuffer< T, From >, CVD::DiskBuffer2< T >, CVD::ServerPushJpegBuffer< C >, CVD::TimedDiskBuffer< T >, and CVD::VideoFileBuffer< T >.

template<class T>

virtual void CVD::LocalVideoBuffer< T >::put_frame

(

VideoFrame< T > *

f

)

[pure virtual]

Tell the buffer that you are finished with this frame.

Typically the VideoBuffer then destroys the frame.

Parameters:

f

The frame that you are finished with.

Implements CVD::VideoBuffer< T >.

Implemented in CVD::ColourspaceBuffer< T, From >, CVD::DiskBuffer2< T >, CVD::ServerPushJpegBuffer< C >, and CVD::VideoFileBuffer< T >.

template<class T>

virtual bool CVD::LocalVideoBuffer< T >::frame_pending

(

)

[pure virtual]

Is there a frame waiting in the buffer? This function does not block.

See is_live and is_flushable.

Implements CVD::VideoBuffer< T >.

Implemented in CVD::ColourspaceBuffer< T, From >, CVD::DiskBuffer2< T >, CVD::ServerPushJpegBuffer< C >, and CVD::VideoFileBuffer< T >.

template<class T>

virtual void CVD::LocalVideoBuffer< T >::seek_to

(

double

)

[inline, virtual]

Go to a particular point in the video buffer (only implemented in buffers of recorded video).

Parameters:

t

The frame time in seconds

Reimplemented from CVD::VideoBuffer< T >.

Reimplemented in CVD::ColourspaceBuffer< T, From >, CVD::DiskBuffer2< T >, CVD::ServerPushJpegBuffer< C >, and CVD::VideoFileBuffer< T >.

Definition at line 49 of file localvideobuffer.h.

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

• cvd/localvideobuffer.h

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