Control MJPEG stream timing. More...

#include <mjpeg.hpp>

Public Types
enum	Action { CAPTURE = -1 , RETURN = -2 , SEND = -3 , STOP = -4 }

Public Member Functions
	MjpegController (MjpegConfig cfg)

int	countSentFrames () const
	Retrieve number of sent frames.

int	decideAction ()
	Decide what to do now.

void	notifyCapture ()
	Notify that frame capture has started.

void	notifyReturn (std::unique_ptr< Frame > frame)
	Notify that frame capture has completed.

Frame *	getFrame () const
	Retrieve current frame.

void	notifySent (bool ok)
	Notify that a frame is sent to the client.

void	notifyFail ()
	Notify that an error has occurred.

Public Attributes
const MjpegConfig	cfg

Detailed Description

Control MJPEG stream timing.

Member Enumeration Documentation

◆ Action

enum esp32cam::detail::MjpegController::Action

Enumerator
CAPTURE
RETURN
SEND
STOP

Constructor & Destructor Documentation

◆ MjpegController()

esp32cam::detail::MjpegController::MjpegController ( MjpegConfig cfg )

explicit

Member Function Documentation

◆ countSentFrames()

int esp32cam::detail::MjpegController::countSentFrames ( ) const

inline

Retrieve number of sent frames.

◆ decideAction()

int esp32cam::detail::MjpegController::decideAction ( )

Decide what to do now.

Return values

CAPTURE	capture a frame.
RETURN	return a captured frame.
SEND	send current frame to the client.
STOP	disconnect the client.

Returns: if non-negative, how long to delay (millis) before the next action.

◆ getFrame()

Frame * esp32cam::detail::MjpegController::getFrame ( ) const

inline

Retrieve current frame.

◆ notifyCapture()

void esp32cam::detail::MjpegController::notifyCapture ( )

Notify that frame capture has started.

Postcondition: decideAction()==RETURN

◆ notifyFail()

void esp32cam::detail::MjpegController::notifyFail ( )

Notify that an error has occurred.

Postcondition: getFrame()==nullptr; decideAction()==STOP

◆ notifyReturn()

void esp32cam::detail::MjpegController::notifyReturn ( std::unique_ptr< Frame > frame )

Notify that frame capture has completed.

Parameters

frame captured frame, possibly nullptr.

Postcondition: if frame==nullptr, decideAction()==STOP; otherwise, decideAction()==SEND

◆ notifySent()

void esp32cam::detail::MjpegController::notifySent ( bool ok )

Notify that a frame is sent to the client.

Parameters

ok	whether sent successfully.

Postcondition: getFrame()==nullptr

The caller is expected to enforce MjpegConfig::frameTimeout and call `notifySent(false)` in case of send timeout.

Member Data Documentation

◆ cfg

const MjpegConfig esp32cam::detail::MjpegController::cfg

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

/home/runner/work/esp32cam/esp32cam/src/esp32cam/mjpeg.hpp
/home/runner/work/esp32cam/esp32cam/src/esp32cam/mjpeg.cpp

Public Types

Public Member Functions

Public Attributes