rs2::frame_queue Class Reference

#include <rs_processing.hpp>

Public Member Functions
	frame_queue (unsigned int capacity, bool keep_frames=false)
	frame_queue ()
void	enqueue (frame f) const
frame	wait_for_frame (unsigned int timeout_ms=5000) 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
void	operator() (frame f) const
size_t	size () const
size_t	capacity () const
bool	keep_frames () const
std::shared_ptr< rs2_frame_queue >	get ()

Constructor & Destructor Documentation

frame_queue() [1/2]

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.

frame_queue() [2/2]

rs2::frame_queue::frame_queue ( )

inline

Member Function Documentation

capacity()

size_t rs2::frame_queue::capacity ( ) const

inline

Return the capacity of the queue

Returns

capacity size

enqueue()

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)

get()

std::shared_ptr< rs2_frame_queue > rs2::frame_queue::get ( )

inline

Provide a getter for underlying rs2_frame_queue object. Used to invoke C-API that require C-type parameters in signature

Returns

keeping frames

keep_frames()

bool rs2::frame_queue::keep_frames ( ) const

inline

Return whether or not the queue calls keep on enqueued frames

Returns

keeping frames

operator()()

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

inline

Does the same thing as enqueue function.

poll_for_frame()

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

size()

size_t rs2::frame_queue::size ( ) const

inline

Return the capacity of the queue

Returns

capacity size

try_wait_for_frame()

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

wait_for_frame()

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

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

• /builddir/build/BUILD/librealsense-2.58.2-build/librealsense-2.58.2/include/librealsense2/hpp/rs_processing.hpp