qgst_p.h File Reference

(fb21f07dbcff016105c071962778fdaf466d4909)

#include <QtCore/qdebug.h>
#include <QtCore/qlist.h>
#include <QtCore/qmutex.h>
#include <QtCore/qsemaphore.h>
#include <QtMultimedia/qaudioformat.h>
#include <QtMultimedia/qvideoframe.h>
#include <QtMultimedia/private/qtmultimediaglobal_p.h>
#include <QtMultimedia/private/qmultimediautils_p.h>
#include <QtMultimedia/private/qplatformmediaplayer_p.h>
#include <QtMultimedia/private/qsharedhandle_p.h>
#include <gst/gst.h>
#include <gst/app/gstappsink.h>
#include <gst/app/gstappsrc.h>
#include <gst/video/video-info.h>
#include "qgst_handle_types_p.h"
#include <type_traits>

Include dependency graph for qgst_p.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
struct	QGstImpl::GstObjectTraits< T >
struct	QGstImpl::GstObjectTraits< GObject >
struct	QGRange< T >
struct	QGString
class	QGValue
class	QGstStructureView
struct	QSharedGstCapsTraits
class	QGstCaps
struct	QSharedGstObjectTraits
class	QGstObject
class	QGObjectHandlerConnection
class	QGObjectHandlerScopedConnection
class	QGstPad
class	QGstClock
class	QGstElement
class	QGstBin
class	QGstBaseSink
class	QGstBaseSrc
class	QGstAppSink
class	QGstAppSrc
struct	std::hash< QT_PREPEND_NAMESPACE(QGstElement)>

Namespaces
namespace	QGstImpl
namespace	std
	[33]

Macros
#define	QGST_DEFINE_CAST_TRAITS(ClassName, MACRO_LABEL)
#define	QGST_DEFINE_CAST_TRAITS_FOR_INTERFACE(ClassName, MACRO_LABEL)

Functions
	QGstImpl::QGST_DEFINE_CAST_TRAITS (GstBin, BIN)
	QGstImpl::QGST_DEFINE_CAST_TRAITS (GstClock, CLOCK)
	QGstImpl::QGST_DEFINE_CAST_TRAITS (GstElement, ELEMENT)
	QGstImpl::QGST_DEFINE_CAST_TRAITS (GstObject, OBJECT)
	QGstImpl::QGST_DEFINE_CAST_TRAITS (GstPad, PAD)
	QGstImpl::QGST_DEFINE_CAST_TRAITS (GstPipeline, PIPELINE)
	QGstImpl::QGST_DEFINE_CAST_TRAITS (GstBaseSink, BASE_SINK)
	QGstImpl::QGST_DEFINE_CAST_TRAITS (GstBaseSrc, BASE_SRC)
	QGstImpl::QGST_DEFINE_CAST_TRAITS (GstAppSink, APP_SINK)
	QGstImpl::QGST_DEFINE_CAST_TRAITS (GstAppSrc, APP_SRC)
	QGstImpl::QGST_DEFINE_CAST_TRAITS_FOR_INTERFACE (GstTagSetter, TAG_SETTER)
template<typename DestinationType, typename SourceType>
bool	qIsGstObjectOfType (SourceType *arg)
template<typename DestinationType, typename SourceType>
DestinationType *	qGstSafeCast (SourceType *arg)
template<typename DestinationType, typename SourceType>
DestinationType *	qGstCheckedCast (SourceType *arg)
template<typename... Ts>
std::enable_if_t<(std::is_base_of_v< QGstElement, Ts > &&...), void >	qLinkGstElements (const Ts &...ts)
template<typename... Ts>
std::enable_if_t<(std::is_base_of_v< QGstElement, Ts > &&...), void >	qUnlinkGstElements (const Ts &...ts)
GstClockTime	qGstClockTimeFromChrono (std::chrono::nanoseconds ns)
QString	qGstErrorMessageCannotFindElement (std::string_view element)
template<typename Arg, typename... Args>
std::optional< QString >	qGstErrorMessageIfElementsNotAvailable (const Arg &arg, Args... args)
template<typename Functor>
void	qForeachStreamInCollection (GstStreamCollection *collection, Functor &&f)
template<typename Functor>
void	qForeachStreamInCollection (const QGstStreamCollectionHandle &collection, Functor &&f)

Macro Definition Documentation

QGST_DEFINE_CAST_TRAITS

#define QGST_DEFINE_CAST_TRAITS	(		ClassName,
			MACRO_LABEL )

Value:

    template <>                                         \
    struct GstObjectTraits<ClassName>                   \
    {                                                   \
        using Type = ClassName;                         \
        template <typename U>                           \
        static bool isObjectOfType(U *arg)              \
        {                                               \
            return GST_IS_##MACRO_LABEL(arg);           \
        }                                               \
        template <typename U>                           \
        static Type *cast(U *arg)                       \
        {                                               \
            return GST_##MACRO_LABEL##_CAST(arg);       \
        }                                               \
        template <typename U>                           \
        static Type *checked_cast(U *arg)               \
        {                                               \
            return GST_##MACRO_LABEL(arg);              \
        }                                               \
    };                                                  \
    static_assert(true, "ensure semicolon")

Definition at line 63 of file qgst_p.h.

QGST_DEFINE_CAST_TRAITS_FOR_INTERFACE

#define QGST_DEFINE_CAST_TRAITS_FOR_INTERFACE	(		ClassName,
			MACRO_LABEL )

Value:

  template <>                                                         \
  struct GstObjectTraits<ClassName>                                   \
  {                                                                   \
    using Type = ClassName;                                           \
    template <typename U>                                             \
    static bool isObjectOfType(U *arg)                                \
    {                                                                 \
      return GST_IS_##MACRO_LABEL(arg);                               \
    }                                                                 \
    template <typename U>                                             \
    static Type *cast(U *arg)                                         \
    {                                                                 \
      return checked_cast(arg);                                       \
    }                                                                 \
    template <typename U>                                             \
    static Type *checked_cast(U *arg)                                 \
    {                                                                 \
      return GST_##MACRO_LABEL(arg);                                  \
    }                                                                 \
  };                                                                  \
  static_assert(true, "ensure semicolon")

Definition at line 86 of file qgst_p.h.

Function Documentation

qForeachStreamInCollection() [1/2]

template<typename Functor>

void qForeachStreamInCollection	(	const QGstStreamCollectionHandle &	collection,
		Functor &&	f )

Definition at line 970 of file qgst_p.h.

qForeachStreamInCollection() [2/2]

template<typename Functor>

void qForeachStreamInCollection	(	GstStreamCollection *	collection,
		Functor &&	f )

Definition at line 962 of file qgst_p.h.

qGstCheckedCast()

template<typename DestinationType, typename SourceType>

DestinationType * qGstCheckedCast

(

SourceType *

arg

)

Definition at line 166 of file qgst_p.h.

qGstClockTimeFromChrono()

GstClockTime qGstClockTimeFromChrono ( std::chrono::nanoseconds ns )

inline

Definition at line 941 of file qgst_p.h.

qGstErrorMessageCannotFindElement()

QString qGstErrorMessageCannotFindElement

(

std::string_view

element

)

Definition at line 1539 of file qgst.cpp.

qGstErrorMessageIfElementsNotAvailable()

template<typename Arg, typename... Args>

std::optional< QString > qGstErrorMessageIfElementsNotAvailable	(	const Arg &	arg,
		Args...	args )

Definition at line 949 of file qgst_p.h.

qGstSafeCast()

template<typename DestinationType, typename SourceType>

DestinationType * qGstSafeCast

(

SourceType *

arg

)

Definition at line 157 of file qgst_p.h.

qIsGstObjectOfType()

template<typename DestinationType, typename SourceType>

bool qIsGstObjectOfType

(

SourceType *

arg

)

Definition at line 150 of file qgst_p.h.

qLinkGstElements()

template<typename... Ts>

std::enable_if_t<(std::is_base_of_v< QGstElement, Ts > &&...), void > qLinkGstElements

(

const Ts &...

ts

)

Definition at line 773 of file qgst_p.h.

qUnlinkGstElements()

template<typename... Ts>

std::enable_if_t<(std::is_base_of_v< QGstElement, Ts > &&...), void > qUnlinkGstElements

(

const Ts &...

ts

)

Definition at line 792 of file qgst_p.h.