CoreVideoSource Class Reference

A VideoSource that emits frames received by Core. More...

#include <corevideosource.h>

Inheritance diagram for CoreVideoSource:

Collaboration diagram for CoreVideoSource:

Public Member Functions
void	subscribe () override
	If subscribe sucessfully opens the source, it will start emitting frameAvailable signals. More...
void	unsubscribe () override
	Stop emitting frameAvailable signals, and free associated resources if necessary. More...
Public Member Functions inherited from VideoSource
	VideoSource ()
virtual	~VideoSource ()=default

Private Member Functions
	CoreVideoSource ()
	CoreVideoSource constructor. More...
void	pushFrame (const vpx_image_t *frame)
	Makes a copy of the vpx_image_t and emits it as a new VideoFrame. More...
void	setDeleteOnClose (bool newstate)
	Setup delete on close. More...
void	stopSource ()
	Stopping the source. More...
void	restartSource ()

Private Attributes
std::atomic_int	subscribers
std::atomic_bool	deleteOnClose
QMutex	biglock
std::atomic_bool	stopped

Friends
class	CoreAV
class	ToxFriendCall

Additional Inherited Members
Public Types inherited from VideoSource
using	IDType = std::uint_fast64_t
using	AtomicIDType = std::atomic_uint_fast64_t
Signals inherited from VideoSource
void	frameAvailable (std::shared_ptr< VideoFrame > frame)
	Emitted when new frame available to use. More...
void	sourceStopped ()
	Emitted when the source is stopped for an indefinite amount of time, but might restart sending frames again later. More...
Public Attributes inherited from VideoSource
const IDType	id
	ID of this VideoSource. More...

Detailed Description

A VideoSource that emits frames received by Core.

Definition at line 28 of file corevideosource.h.

Constructor & Destructor Documentation

CoreVideoSource()

CoreVideoSource::CoreVideoSource ( )

private

CoreVideoSource constructor.

Note

Only CoreAV should create a CoreVideoSource since only CoreAV can push images to it.

Definition at line 49 of file corevideosource.cpp.

Member Function Documentation

pushFrame()

void CoreVideoSource::pushFrame ( const vpx_image_t *  vpxframe )

private

Makes a copy of the vpx_image_t and emits it as a new VideoFrame.

Parameters

vpxframe

Frame to copy.

Definition at line 60 of file corevideosource.cpp.

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restartSource()

void CoreVideoSource::restartSource ( )

private

Definition at line 151 of file corevideosource.cpp.

setDeleteOnClose()

void CoreVideoSource::setDeleteOnClose ( bool  newstate )

private

Setup delete on close.

Parameters

If	true, self-delete after the last suscriber is gone

Definition at line 132 of file corevideosource.cpp.

stopSource()

void CoreVideoSource::stopSource ( )

private

Stopping the source.

See also

The callers in CoreAV for the rationale

Stopping the source will block any pushFrame calls from doing anything

Definition at line 144 of file corevideosource.cpp.

subscribe()

void CoreVideoSource::subscribe ( )

overridevirtual

If subscribe sucessfully opens the source, it will start emitting frameAvailable signals.

Implements VideoSource.

Definition at line 108 of file corevideosource.cpp.

unsubscribe()

void CoreVideoSource::unsubscribe ( )

overridevirtual

Stop emitting frameAvailable signals, and free associated resources if necessary.

Implements VideoSource.

Definition at line 114 of file corevideosource.cpp.

Friends And Related Function Documentation

CoreAV

friend class CoreAV

friend

Definition at line 51 of file corevideosource.h.

ToxFriendCall

friend class ToxFriendCall

friend

Definition at line 52 of file corevideosource.h.

Member Data Documentation

biglock

QMutex CoreVideoSource::biglock

private

Definition at line 48 of file corevideosource.h.

deleteOnClose

std::atomic_bool CoreVideoSource::deleteOnClose

private

Definition at line 47 of file corevideosource.h.

stopped

std::atomic_bool CoreVideoSource::stopped

private

Definition at line 49 of file corevideosource.h.

subscribers

std::atomic_int CoreVideoSource::subscribers

private

Definition at line 46 of file corevideosource.h.

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

• src/video/corevideosource.h
• src/video/corevideosource.cpp