rs2::frame_queue Class Reference

#include <rs_processing.hpp>

Public Member Functions
size_t	capacity () const
void	enqueue (frame f) const
	frame_queue (unsigned int capacity, bool keep_frames=false)
	frame_queue ()
bool	keep_frames () const
void	operator() (frame f) const
template<typename T >
std::enable_if< std::is_base_of< rs2::frame, T >::value, bool >::type	poll_for_frame (T *output) const
template<typename T >
std::enable_if< std::is_base_of< rs2::frame, T >::value, bool >::type	try_wait_for_frame (T *output, unsigned int timeout_ms=5000) const
frame	wait_for_frame (unsigned int timeout_ms=5000) const

Private Attributes
size_t	_capacity
bool	_keep
std::shared_ptr< rs2_frame_queue >	_queue

Detailed Description

Definition at line 134 of file rs_processing.hpp.

Constructor & Destructor Documentation

rs2::frame_queue::frame_queue ( unsigned int  capacity, bool  keep_frames = false  )

inlineexplicit

create frame queue. frame queues are the simplest x-platform synchronization primitive provided by librealsense to help developers who are not using async APIs param[in] capacity size of the frame queue param[in] keep_frames if set to true, the queue automatically calls keep() on every frame enqueued into it.

Definition at line 143 of file rs_processing.hpp.

rs2::frame_queue::frame_queue ( )

inline

Definition at line 152 of file rs_processing.hpp.

Member Function Documentation

size_t rs2::frame_queue::capacity ( ) const

inline

Return the capacity of the queue

Returns

capacity size

Definition at line 216 of file rs_processing.hpp.

void rs2::frame_queue::enqueue ( frame  f ) const

inline

enqueue new frame into the queue

Parameters

[in]

f

- frame handle to enqueue (this operation passed ownership to the queue)

Definition at line 158 of file rs_processing.hpp.

bool rs2::frame_queue::keep_frames ( ) const

inline

Return whether or not the queue calls keep on enqueued frames

Returns

keeping frames

Definition at line 222 of file rs_processing.hpp.

void rs2::frame_queue::operator() ( frame  f ) const

inline

Does the same thing as enqueue function.

Definition at line 208 of file rs_processing.hpp.

template<typename T >

std::enable_if<std::is_base_of<rs2::frame, T>::value, bool>::type rs2::frame_queue::poll_for_frame ( T *  output ) const

inline

poll if a new frame is available and dequeue if it is

Parameters

[out]

f

- frame handle

Returns

true if new frame was stored to f

Definition at line 183 of file rs_processing.hpp.

template<typename T >

std::enable_if<std::is_base_of<rs2::frame, T>::value, bool>::type rs2::frame_queue::try_wait_for_frame ( T *  output, unsigned int  timeout_ms = 5000  ) const

inline

Definition at line 195 of file rs_processing.hpp.

frame rs2::frame_queue::wait_for_frame ( unsigned int  timeout_ms = 5000 ) const

inline

wait until new frame becomes available in the queue and dequeue it

Returns

frame handle to be released using rs2_release_frame

Definition at line 169 of file rs_processing.hpp.

Member Data Documentation

size_t rs2::frame_queue::_capacity

private

Definition at line 226 of file rs_processing.hpp.

bool rs2::frame_queue::_keep

private

Definition at line 227 of file rs_processing.hpp.

std::shared_ptr<rs2_frame_queue> rs2::frame_queue::_queue

private

Definition at line 225 of file rs_processing.hpp.

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

• rs_processing.hpp