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fix: Resolve enable state for v4l and screen capture (#728)

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* fix: Resolve the enable state for v4l and screen capture

* Use instance index instead of pointer

* Second try

* fix(QtGrabber): QScreen ownership

* Remove v4l2 compState listener
This commit is contained in:
brindosch 2020-03-26 17:49:36 +01:00 committed by GitHub
parent 49b30c47f7
commit cb98d51a9c
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GPG Key ID: 4AEE18F83AFDEB23
12 changed files with 109 additions and 52 deletions
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2
include/grabber/V4L2Grabber.h
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@ -90,8 +90,6 @@ public slots:
void stop();
void compStateChangeRequest(const hyperion::Components component, bool enable);
signals:
void newFrame(const Image<ColorRgb> & image);
void readError(const char* err);

1
include/grabber/V4L2Wrapper.h
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@ -27,7 +27,6 @@ public slots:
void setDeviceVideoStandard(QString device, VideoStandard videoStandard);
signals:
void compStateChangeRequest(const hyperion::Components component, bool enable);
private slots:
void newFrame(const Image<ColorRgb> & image);

6
include/hyperion/Grabber.h
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@ -97,12 +97,6 @@ public:
///
void setEnabled(bool enable);
signals:
///
/// @brief PIPE component state changes from HyperionDaemon to V4L2Grabber
///
void compStateChangeRequest(const hyperion::Components component, bool enable);
protected:
ImageResampler _imageResampler;

15
include/hyperion/GrabberWrapper.h
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@ -17,6 +17,10 @@ class Grabber;
class GlobalSignals;
class QTimer;
/// List of Hyperion instances that requested screen capt
static QList<int> GRABBER_SYS_CLIENTS;
static QList<int> GRABBER_V4L_CLIENTS;
///
/// This class will be inherted by FramebufferWrapper and others which contains the real capture interface
///
@ -33,6 +37,11 @@ public:
///
virtual bool start();
///
/// Starts maybe the grabber wich produces led values with the specified update rate
///
virtual void tryStart();
///
/// Stop grabber
///
@ -94,8 +103,12 @@ signals:
///
void systemImage(const QString& name, const Image<ColorRgb>& image);
protected:
private slots:
/// @brief Handle a source request event from Hyperion.
/// Will start and stop grabber based on active listeners count
void handleSourceRequest(const hyperion::Components& component, const int hyperionInd, const bool listen);
protected:
QString _grabberName;
/// The timer for generating events with the specified update rate

8
include/utils/GlobalSignals.h
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@ -92,4 +92,12 @@ signals:
///
void globalRegRequired(int priority);
///
/// @brief Tell v4l2/screen capture the listener state
/// @param component The component to handle
/// @param hyperionInd The Hyperion instance index as identifier
/// @param listen True when listening, else false
///
void requestSource(const hyperion::Components& component, const int hyperionInd, const bool listen);
};

7
libsrc/grabber/qt/QtGrabber.cpp
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@ -33,12 +33,7 @@ QtGrabber::~QtGrabber()
void QtGrabber::freeResources()
{
// cleanup
if (_screen != nullptr)
{
delete _screen;
_screen = nullptr;
}
// Qt seems to hold the ownership of the QScreen pointers
}
bool QtGrabber::setupDisplay()

18
libsrc/grabber/v4l2/V4L2Grabber.cpp
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@ -58,10 +58,6 @@ V4L2Grabber::V4L2Grabber(const QString & device
setPixelDecimation(pixelDecimation);
getV4Ldevices();
// connect componentStateChange only for build-in grabber
if (HyperionIManager::HIMinstance)
connect(this, &Grabber::compStateChangeRequest, this, &V4L2Grabber::compStateChangeRequest);
// init
setDeviceVideoStandard(device, videoStandard);
}
@ -1175,17 +1171,3 @@ void V4L2Grabber::setDeviceVideoStandard(QString device, VideoStandard videoStan
if(started) start();
}
}
void V4L2Grabber::compStateChangeRequest(const hyperion::Components component, bool enable)
{
if (component == hyperion::COMP_V4L)
{
if (_initialized != enable)
{
if (enable)
start();
else
stop();
}
}
}

2
libsrc/grabber/v4l2/V4L2Wrapper.cpp
View File

@ -23,8 +23,6 @@ V4L2Wrapper::V4L2Wrapper(const QString &device,
// Handle the image in the captured thread using a direct connection
connect(&_grabber, SIGNAL(newFrame(Image<ColorRgb>)), this, SLOT(newFrame(Image<ColorRgb>)), Qt::DirectConnection);
connect(&_grabber, SIGNAL(readError(const char*)), this, SLOT(readError(const char*)), Qt::DirectConnection);
connect(this, &V4L2Wrapper::compStateChangeRequest, _ggrabber, &Grabber::compStateChangeRequest);
}
bool V4L2Wrapper::start()

4
libsrc/hyperion/CaptureCont.cpp
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@ -86,7 +86,7 @@ void CaptureCont::setSystemCaptureEnable(const bool& enable)
}
_systemCaptEnabled = enable;
_hyperion->setNewComponentState(hyperion::COMP_GRABBER, enable);
//emit _hyperion->compStateChangeRequest(hyperion::COMP_GRABBER, enable);
emit GlobalSignals::getInstance()->requestSource(hyperion::COMP_GRABBER, int(_hyperion->getInstanceIndex()), enable);
}
}
@ -109,7 +109,7 @@ void CaptureCont::setV4LCaptureEnable(const bool& enable)
}
_v4lCaptEnabled = enable;
_hyperion->setNewComponentState(hyperion::COMP_V4L, enable);
//emit _hyperion->compStateChangeRequest(hyperion::COMP_V4L, enable);
emit GlobalSignals::getInstance()->requestSource(hyperion::COMP_V4L, int(_hyperion->getInstanceIndex()), enable);
}
}

1
libsrc/hyperion/ComponentRegister.cpp
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@ -37,7 +37,6 @@ void ComponentRegister::setNewComponentState(const hyperion::Components comp, co
_componentStates[comp] = activated;
// emit component has changed state
emit updatedComponentState(comp, activated);
emit _hyperion->compStateChangeRequest(comp, activated);
}
}

42
libsrc/hyperion/GrabberWrapper.cpp
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@ -28,6 +28,9 @@ GrabberWrapper::GrabberWrapper(QString grabberName, Grabber * ggrabber, unsigned
(_grabberName.startsWith("V4L"))
? connect(this, &GrabberWrapper::systemImage, GlobalSignals::getInstance(), &GlobalSignals::setV4lImage)
: connect(this, &GrabberWrapper::systemImage, GlobalSignals::getInstance(), &GlobalSignals::setSystemImage);
// listen for source requests
connect(GlobalSignals::getInstance(), &GlobalSignals::requestSource, this, &GrabberWrapper::handleSourceRequest);
}
GrabberWrapper::~GrabberWrapper()
@ -39,6 +42,7 @@ GrabberWrapper::~GrabberWrapper()
bool GrabberWrapper::start()
{
// Start the timer with the pre configured interval
Debug(_log,"Grabber start()");
_timer->start();
return _timer->isActive();
}
@ -46,6 +50,7 @@ bool GrabberWrapper::start()
void GrabberWrapper::stop()
{
// Stop the timer, effectivly stopping the process
Debug(_log,"Grabber stop()");
_timer->stop();
}
@ -169,3 +174,40 @@ void GrabberWrapper::handleSettingsUpdate(const settings::type& type, const QJso
}
}
}
void GrabberWrapper::handleSourceRequest(const hyperion::Components& component, const int hyperionInd, const bool listen)
{
if(component == hyperion::Components::COMP_GRABBER && !_grabberName.startsWith("V4L"))
{
if(listen && !GRABBER_SYS_CLIENTS.contains(hyperionInd))
GRABBER_SYS_CLIENTS.append(hyperionInd);
else if (!listen)
GRABBER_SYS_CLIENTS.removeOne(hyperionInd);
if(GRABBER_SYS_CLIENTS.empty())
stop();
else
start();
}
else if(component == hyperion::Components::COMP_V4L && _grabberName.startsWith("V4L"))
{
if(listen && !GRABBER_V4L_CLIENTS.contains(hyperionInd))
GRABBER_V4L_CLIENTS.append(hyperionInd);
else if (!listen)
GRABBER_V4L_CLIENTS.removeOne(hyperionInd);
if(GRABBER_V4L_CLIENTS.empty())
stop();
else
start();
}
}
void GrabberWrapper::tryStart()
{
// verify start condition
if((_grabberName.startsWith("V4L") && !GRABBER_V4L_CLIENTS.empty()) || (!_grabberName.startsWith("V4L") && !GRABBER_SYS_CLIENTS.empty()))
{
start();
}
}

55
src/hyperiond/hyperiond.cpp
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@ -327,22 +327,52 @@ void HyperionDaemon::handleSettingsUpdate(const settings::type& settingsType, co
// stop all capture interfaces
#ifdef ENABLE_FB
if(_fbGrabber != nullptr) _fbGrabber->stop();
if(_fbGrabber != nullptr)
{
_fbGrabber->stop();
delete _fbGrabber;
_fbGrabber = nullptr;
}
#endif
#ifdef ENABLE_DISPMANX
if(_dispmanx != nullptr) _dispmanx->stop();
if(_dispmanx != nullptr)
{
_dispmanx->stop();
delete _dispmanx;
_dispmanx = nullptr;
}
#endif
#ifdef ENABLE_AMLOGIC
if(_amlGrabber != nullptr) _amlGrabber->stop();
if(_amlGrabber != nullptr)
{
_amlGrabber->stop();
delete _amlGrabber;
_amlGrabber = nullptr;
}
#endif
#ifdef ENABLE_OSX
if(_osxGrabber != nullptr) _osxGrabber->stop();
if(_osxGrabber != nullptr)
{
_osxGrabber->stop();
delete _osxGrabber;
_osxGrabber = nullptr;
}
#endif
#ifdef ENABLE_X11
if(_x11Grabber != nullptr) _x11Grabber->stop();
if(_x11Grabber != nullptr)
{
_x11Grabber->stop();
delete _x11Grabber;
_x11Grabber = nullptr;
}
#endif
#ifdef ENABLE_QT
if(_qtGrabber != nullptr) _qtGrabber->stop();
if(_qtGrabber != nullptr)
{
_qtGrabber->stop();
delete _qtGrabber;
_qtGrabber = nullptr;
}
#endif
// create/start capture interface
@ -351,7 +381,7 @@ void HyperionDaemon::handleSettingsUpdate(const settings::type& settingsType, co
if(_fbGrabber == nullptr)
createGrabberFramebuffer(grabberConfig);
#ifdef ENABLE_FB
_fbGrabber->start();
_fbGrabber->tryStart();
#endif
}
else if(type == "dispmanx")
@ -359,7 +389,7 @@ void HyperionDaemon::handleSettingsUpdate(const settings::type& settingsType, co
if(_dispmanx == nullptr)
createGrabberDispmanx();
#ifdef ENABLE_DISPMANX
_dispmanx->start();
_dispmanx->tryStart();
#endif
}
else if(type == "amlogic")
@ -367,7 +397,7 @@ void HyperionDaemon::handleSettingsUpdate(const settings::type& settingsType, co
if(_amlGrabber == nullptr)
createGrabberAmlogic();
#ifdef ENABLE_AMLOGIC
_amlGrabber->start();
_amlGrabber->tryStart();
#endif
}
else if(type == "osx")
@ -375,7 +405,7 @@ void HyperionDaemon::handleSettingsUpdate(const settings::type& settingsType, co
if(_osxGrabber == nullptr)
createGrabberOsx(grabberConfig);
#ifdef ENABLE_OSX
_osxGrabber->start();
_osxGrabber->tryStart();
#endif
}
else if(type == "x11")
@ -383,7 +413,7 @@ void HyperionDaemon::handleSettingsUpdate(const settings::type& settingsType, co
if(_x11Grabber == nullptr)
createGrabberX11(grabberConfig);
#ifdef ENABLE_X11
_x11Grabber->start();
_x11Grabber->tryStart();
#endif
}
else if(type == "qt")
@ -391,7 +421,7 @@ void HyperionDaemon::handleSettingsUpdate(const settings::type& settingsType, co
if(_qtGrabber == nullptr)
createGrabberQt(grabberConfig);
#ifdef ENABLE_QT
_qtGrabber->start();
_qtGrabber->tryStart();
#endif
}
else
@ -436,7 +466,6 @@ void HyperionDaemon::handleSettingsUpdate(const settings::type& settingsType, co
// connect to HyperionDaemon signal
connect(this, &HyperionDaemon::videoMode, _v4l2Grabber, &V4L2Wrapper::setVideoMode);
connect(this, &HyperionDaemon::settingsChanged, _v4l2Grabber, &V4L2Wrapper::handleSettingsUpdate);
connect(this, &HyperionDaemon::compStateChangeRequest, _v4l2Grabber, &V4L2Wrapper::compStateChangeRequest);
#else
Error(_log, "The v4l2 grabber can not be instantiated, because it has been left out from the build");
#endif