qgst_p.h File Reference

(6f24b9397ef3a672a1fb1dfaad3d6a2015d931c1)

#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	QGstVideoInfo
struct	QGstStructure
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	QT_GSTREAMER_SUPPORTS_GST_VIDEO_FORMAT_DMA_DRM   0
#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)
GstVideoFormat	qGstVideoFormatFromPixelFormat (QVideoFrameFormat::PixelFormat formatformat)
QVideoFrameFormat::PixelFormat	qPixelFormatFromGstVideoFormat (GstVideoFormat formatformat)
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 &&ff)
template<typename Functor>
void	qForeachStreamInCollection (const QGstStreamCollectionHandle &collection, Functor &&ff)
QVideoFrameFormat	qVideoFrameFormatFromGstVideoInfo (const QGstVideoInfo &vidInfo)
QGstCaps::MemoryFormat	qMemoryFormatFromGstBuffer (GstBuffer *bufferbuffer)
QVideoFrame	qCreateFrameFromGstBuffer (QGstBufferHandle bufferbuffer, const QGstVideoInfo &videoInfo)
QVideoFrame	qCreateFrameFromGstBuffer (QGstBufferHandle, const QGstVideoInfo &, const QVideoFrameFormat &)

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 69 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 92 of file qgst_p.h.

QT_GSTREAMER_SUPPORTS_GST_VIDEO_FORMAT_DMA_DRM

#define QT_GSTREAMER_SUPPORTS_GST_VIDEO_FORMAT_DMA_DRM   0

Definition at line 38 of file qgst_p.h.

Function Documentation

qCreateFrameFromGstBuffer() [1/2]

QVideoFrame qCreateFrameFromGstBuffer	(	QGstBufferHandle	buffer,
		const QGstVideoInfo &	videoInfo )

Definition at line 1738 of file qgst.cpp.

qCreateFrameFromGstBuffer() [2/2]

QVideoFrame qCreateFrameFromGstBuffer	(	QGstBufferHandle	buffer,
		const QGstVideoInfo &	videoInfo,
		const QVideoFrameFormat &	format )

Definition at line 1727 of file qgst.cpp.

qForeachStreamInCollection() [1/2]

template<typename Functor>

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

Definition at line 1024 of file qgst_p.h.

qForeachStreamInCollection() [2/2]

template<typename Functor>

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

Definition at line 1016 of file qgst_p.h.

qGstCheckedCast()

template<typename DestinationType, typename SourceType>

DestinationType * qGstCheckedCast

(

SourceType *

arg

)

Definition at line 172 of file qgst_p.h.

qGstClockTimeFromChrono()

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

inline

Definition at line 995 of file qgst_p.h.

qGstErrorMessageCannotFindElement()

QString qGstErrorMessageCannotFindElement

(

std::string_view

element

)

Definition at line 1610 of file qgst.cpp.

qGstErrorMessageIfElementsNotAvailable()

template<typename Arg, typename... Args>

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

Definition at line 1003 of file qgst_p.h.

qGstSafeCast()

template<typename DestinationType, typename SourceType>

DestinationType * qGstSafeCast

(

SourceType *

arg

)

Definition at line 163 of file qgst_p.h.

qGstVideoFormatFromPixelFormat()

GstVideoFormat qGstVideoFormatFromPixelFormat

(

QVideoFrameFormat::PixelFormat

format

)

Definition at line 108 of file qgst.cpp.

qIsGstObjectOfType()

template<typename DestinationType, typename SourceType>

bool qIsGstObjectOfType

(

SourceType *

arg

)

Definition at line 156 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 827 of file qgst_p.h.

qMemoryFormatFromGstBuffer()

QGstCaps::MemoryFormat qMemoryFormatFromGstBuffer

(

GstBuffer *

buffer

)

Definition at line 1708 of file qgst.cpp.

References QGstCaps::CpuMemory.

qPixelFormatFromGstVideoFormat()

QVideoFrameFormat::PixelFormat qPixelFormatFromGstVideoFormat

(

GstVideoFormat

format

)

Definition at line 117 of file qgst.cpp.

qUnlinkGstElements()

template<typename... Ts>

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

(

const Ts &...

ts

)

Definition at line 846 of file qgst_p.h.

qVideoFrameFormatFromGstVideoInfo()

QVideoFrameFormat qVideoFrameFormatFromGstVideoInfo

(

const QGstVideoInfo &

vidInfo

)

Definition at line 1616 of file qgst.cpp.