wpi::cs::VideoSink Class Reference

A sink for video that accepts a sequence of frames. More...

#include <wpi/cs/VideoSink.hpp>

Inheritance diagram for wpi::cs::VideoSink:

Public Types
enum	Kind { kUnknown = CS_SINK_UNKNOWN , kMjpeg = CS_SINK_MJPEG , kCv = CS_SINK_CV , kRaw = CS_SINK_RAW }

Public Member Functions
	VideoSink () noexcept=default
	VideoSink (const VideoSink &sink)
	VideoSink (VideoSink &&other) noexcept
VideoSink &	operator= (VideoSink other) noexcept
	~VideoSink ()
	operator bool () const
	Returns true if the VideoSink is valid.
int	GetHandle () const
	Returns the VideoSink handle.
bool	operator== (const VideoSink &other) const
Kind	GetKind () const
	Get the kind of the sink.
std::string	GetName () const
	Get the name of the sink.
std::string	GetDescription () const
	Get the sink description.
VideoProperty	GetProperty (std::string_view name)
	Get a property of the sink.
std::vector< VideoProperty >	EnumerateProperties () const
	Enumerate all properties of this sink.
bool	SetConfigJson (std::string_view config)
	Set properties from a JSON configuration string.
bool	SetConfigJson (const wpi::util::json &config)
	Set properties from a JSON configuration object.
std::string	GetConfigJson () const
	Get a JSON configuration string.
wpi::util::json	GetConfigJsonObject () const
	Get a JSON configuration object.
void	SetSource (VideoSource source)
	Configure which source should provide frames to this sink.
VideoSource	GetSource () const
	Get the connected source.
VideoProperty	GetSourceProperty (std::string_view name)
	Get a property of the associated source.
CS_Status	GetLastStatus () const

Static Public Member Functions
static std::vector< VideoSink >	EnumerateSinks ()
	Enumerate all existing sinks.

Protected Member Functions
	VideoSink (CS_Sink handle)

Protected Attributes
CS_Status	m_status = 0
CS_Sink	m_handle {0}

Friends
class	VideoEvent
class	VideoSource
void	swap (VideoSink &first, VideoSink &second) noexcept

Detailed Description

A sink for video that accepts a sequence of frames.

Member Enumeration Documentation

Kind

enum wpi::cs::VideoSink::Kind

Enumerator
kUnknown	Unknown sink type.
kMjpeg	MJPEG video sink.
kCv	CV video sink.
kRaw	Raw video sink.

Constructor & Destructor Documentation

VideoSink() [1/4]

wpi::cs::VideoSink::VideoSink ( )

defaultnoexcept

VideoSink() [2/4]

wpi::cs::VideoSink::VideoSink ( const VideoSink & sink )

inline

VideoSink() [3/4]

wpi::cs::VideoSink::VideoSink ( VideoSink && other )

inlinenoexcept

~VideoSink()

wpi::cs::VideoSink::~VideoSink ( )

inline

VideoSink() [4/4]

wpi::cs::VideoSink::VideoSink ( CS_Sink handle )

inlineexplicitprotected

Member Function Documentation

EnumerateProperties()

std::vector< VideoProperty > wpi::cs::VideoSink::EnumerateProperties

(

)

const

Enumerate all properties of this sink.

EnumerateSinks()

std::vector< VideoSink > wpi::cs::VideoSink::EnumerateSinks ( )

static

Enumerate all existing sinks.

Returns

Vector of sinks.

GetConfigJson()

std::string wpi::cs::VideoSink::GetConfigJson ( ) const

inline

Get a JSON configuration string.

Returns

JSON configuration string

GetConfigJsonObject()

wpi::util::json wpi::cs::VideoSink::GetConfigJsonObject

(

)

const

Get a JSON configuration object.

Returns

JSON configuration object

GetDescription()

std::string wpi::cs::VideoSink::GetDescription ( ) const

inline

Get the sink description.

This is sink-kind specific.

GetHandle()

int wpi::cs::VideoSink::GetHandle ( ) const

inline

Returns the VideoSink handle.

Returns

The VideoSink handle.

GetKind()

Kind wpi::cs::VideoSink::GetKind ( ) const

inline

Get the kind of the sink.

GetLastStatus()

CS_Status wpi::cs::VideoSink::GetLastStatus ( ) const

inline

GetName()

std::string wpi::cs::VideoSink::GetName ( ) const

inline

Get the name of the sink.

The name is an arbitrary identifier provided when the sink is created, and should be unique.

GetProperty()

VideoProperty wpi::cs::VideoSink::GetProperty ( std::string_view name )

inline

Get a property of the sink.

Parameters

name	Property name

Returns

Property (kind Property::kNone if no property with the given name exists)

GetSource()

VideoSource wpi::cs::VideoSink::GetSource ( ) const

inline

Get the connected source.

Returns

Connected source (empty if none connected).

GetSourceProperty()

VideoProperty wpi::cs::VideoSink::GetSourceProperty ( std::string_view name )

inline

Get a property of the associated source.

Parameters

name	Property name

Returns

Property (kind Property::kNone if no property with the given name exists or no source connected)

operator bool()

wpi::cs::VideoSink::operator bool ( ) const

inlineexplicit

Returns true if the VideoSink is valid.

Returns

True if the VideoSink is valid.

operator=()

VideoSink & wpi::cs::VideoSink::operator= ( VideoSink other )

inlinenoexcept

operator==()

bool wpi::cs::VideoSink::operator== ( const VideoSink & other ) const

inline

SetConfigJson() [1/2]

bool wpi::cs::VideoSink::SetConfigJson ( const wpi::util::json & config )

inline

Set properties from a JSON configuration object.

Parameters

config

configuration

Returns

True if set successfully

SetConfigJson() [2/2]

bool wpi::cs::VideoSink::SetConfigJson ( std::string_view config )

inline

Set properties from a JSON configuration string.

The format of the JSON input is:

{
    "properties": [
        {
            "name": property name
            "value": property value
        }
    ]
}

Parameters

config

configuration

Returns

True if set successfully

SetSource()

void wpi::cs::VideoSink::SetSource ( VideoSource source )

inline

Configure which source should provide frames to this sink.

Each sink can accept frames from only a single source, but a single source can provide frames to multiple clients.

Parameters

source

Source

Friends And Related Symbol Documentation

swap

void swap ( VideoSink & first, VideoSink & second )

friend

VideoEvent

friend class VideoEvent

friend

VideoSource

friend class VideoSource

friend

Member Data Documentation

m_handle

CS_Sink wpi::cs::VideoSink::m_handle {0}

protected

m_status

CS_Status wpi::cs::VideoSink::m_status = 0

mutableprotected

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

• wpi/cs/VideoSink.hpp