#include <libmythtv/opengl/mythnvdecinterop.h>

Inheritance diagram for MythNVDECInterop:

Collaboration diagram for MythNVDECInterop:

Public Member Functions
bool	IsValid ()

CUcontext	GetCUDAContext ()

std::vector< MythVideoTextureOpenGL * >	Acquire (MythRenderOpenGL Context, MythVideoColourSpace ColourSpace, MythVideoFrame *Frame, FrameScanType Scan) override
	Map CUDA video memory to OpenGL textures. More...

Public Member Functions inherited from MythOpenGLInterop
	~MythOpenGLInterop () override

virtual std::vector< MythVideoTextureOpenGL * >	Acquire (MythRenderOpenGL Context, MythVideoColourSpace ColourSpace, MythVideoFrame *Frame, FrameScanType Scan)

Public Member Functions inherited from MythInteropGPU
	MythInteropGPU (MythRender Context, InteropType Type, MythPlayerUI Player=nullptr)

	~MythInteropGPU () override

InteropType	GetType ()

MythPlayerUI *	GetPlayer ()

void	SetDefaultFree (FreeAVHWDeviceContext FreeContext)

void	SetDefaultUserOpaque (void *UserOpaque)

FreeAVHWDeviceContext	GetDefaultFree ()

void *	GetDefaultUserOpaque ()

Public Member Functions inherited from ReferenceCounter
	ReferenceCounter (const QString &debugName, bool logDebug=true)
	Creates reference counter with an initial value of 1. More...

virtual int	IncrRef (void)
	Increments reference count. More...

virtual int	DecrRef (void)
	Decrements reference count and deletes on 0. More...

Static Public Member Functions
static void	GetNVDECTypes (MythRenderOpenGL *Render, MythInteropGPU::InteropMap &Types)

static MythNVDECInterop *	CreateNVDEC (MythPlayerUI Player, MythRenderOpenGL Context)

static bool	CreateCUDAContext (MythRenderOpenGL GLContext, CudaFunctions &CudaFuncs, CUcontext &CudaContext)

static void	CleanupContext (MythRenderOpenGL GLContext, CudaFunctions &CudaFuncs, CUcontext &CudaContext)

Static Public Member Functions inherited from MythOpenGLInterop
static void	GetTypes (MythRender *Render, MythInteropGPU::InteropMap &Types)

static std::vector< MythVideoTextureOpenGL * >	Retrieve (MythRenderOpenGL Context, MythVideoColourSpace ColourSpace, MythVideoFrame *Frame, FrameScanType Scan)

Static Public Member Functions inherited from MythInteropGPU
static InteropMap	GetTypes (MythRender *Render)

static QString	TypeToString (InteropType Type)

static QString	TypesToString (const InteropMap &Types)

static MythInteropGPU *	CreateDummy ()

Static Public Member Functions inherited from ReferenceCounter
static void	PrintDebug (void)
	Print out any leaks if that level of debugging is enabled. More...

Protected Member Functions
	MythNVDECInterop (MythPlayerUI Player, MythRenderOpenGL Context)

	~MythNVDECInterop () override

Protected Member Functions inherited from MythOpenGLInterop
	MythOpenGLInterop (MythRenderOpenGL Context, InteropType Type, MythPlayerUI Player=nullptr)

virtual void	DeleteTextures ()

Protected Member Functions inherited from ReferenceCounter
virtual	~ReferenceCounter (void)
	Called on destruction, will warn if object deleted with references in place. More...

Private Member Functions
bool	InitialiseCuda ()
	Initialise a CUDA context. More...

void	DeleteTextures () override

void	RotateReferenceFrames (CUdeviceptr Buffer)

Static Private Member Functions
static bool	CreateCUDAPriv (MythRenderOpenGL GLContext, CudaFunctions &CudaFuncs, CUcontext &CudaContext, bool &Retry)

Private Attributes
CUcontext	m_cudaContext {}

CudaFunctions *	m_cudaFuncs { nullptr }

QVector< CUdeviceptr >	m_referenceFrames

Additional Inherited Members
Public Types inherited from MythInteropGPU
enum	InteropType : std::uint8_t { Unsupported = 0 , GL_VAAPIGLXCOPY , GL_VAAPIGLXPIX , GL_VAAPIEGLDRM , GL_VTB , GL_VTBSURFACE , GL_MEDIACODEC , GL_VDPAU , GL_NVDEC , GL_MMAL , GL_DRMPRIME , DRM_DRMPRIME , DUMMY }

using	InteropTypes = std::vector< InteropType >

using	InteropMap = std::map< VideoFrameType, InteropTypes >

Protected Attributes inherited from MythOpenGLInterop
MythRenderOpenGL *	m_openglContext { nullptr }

QHash< unsigned long long, std::vector< MythVideoTextureOpenGL * > >	m_openglTextures

Protected Attributes inherited from MythInteropGPU
MythRender *	m_context { nullptr }

QSize	m_textureSize

uint64_t	m_discontinuityCounter { 0 }

FreeAVHWDeviceContext	m_defaultFree { nullptr }

void *	m_defaultUserOpaque { nullptr }

MythPlayerUI *	m_player { nullptr }

InteropType	m_type { Unsupported }

Protected Attributes inherited from ReferenceCounter
bool	m_logDebug
	This is used to suppress creating LoggingItem classes for LoggingItem reference count changes. More...

QAtomicInt	m_referenceCount {1}

Detailed Description

Definition at line 12 of file mythnvdecinterop.h.

Constructor & Destructor Documentation

◆ MythNVDECInterop()

MythNVDECInterop::MythNVDECInterop	(	MythPlayerUI *	Player,
		MythRenderOpenGL *	Context
	)

protected

Definition at line 32 of file mythnvdecinterop.cpp.

Referenced by CreateNVDEC().

◆ ~MythNVDECInterop()

MythNVDECInterop::~MythNVDECInterop ( )

overrideprotected

Definition at line 38 of file mythnvdecinterop.cpp.

Member Function Documentation

◆ Acquire()

std::vector< MythVideoTextureOpenGL * > MythNVDECInterop::Acquire	(	MythRenderOpenGL *	Context,
		MythVideoColourSpace *	ColourSpace,
		MythVideoFrame *	Frame,
		FrameScanType	Scan
	)

overridevirtual

Map CUDA video memory to OpenGL textures.

Note: This is not zero copy - although the copy will be extremely fast. It may be marginally quicker to implement a custom FFmpeg buffer pool that allocates textures and maps the texture storage to a CUdeviceptr (if that is possible). Alternatively EGL interopability may also be useful.

Reimplemented from MythOpenGLInterop.

Definition at line 116 of file mythnvdecinterop.cpp.

◆ CleanupContext()

void MythNVDECInterop::CleanupContext	(	MythRenderOpenGL *	GLContext,
		CudaFunctions *&	CudaFuncs,
		CUcontext &	CudaContext
	)

static

Definition at line 405 of file mythnvdecinterop.cpp.

Referenced by CreateCUDAContext(), MythNVDECContext::GetProfiles(), and ~MythNVDECInterop().

◆ CreateCUDAContext()

bool MythNVDECInterop::CreateCUDAContext	(	MythRenderOpenGL *	GLContext,
		CudaFunctions *&	CudaFuncs,
		CUcontext &	CudaContext
	)

static

Definition at line 381 of file mythnvdecinterop.cpp.

Referenced by MythNVDECContext::GetProfiles(), and InitialiseCuda().

◆ CreateCUDAPriv()

bool MythNVDECInterop::CreateCUDAPriv	(	MythRenderOpenGL *	GLContext,
		CudaFunctions *&	CudaFuncs,
		CUcontext &	CudaContext,
		bool &	Retry
	)

staticprivate

Definition at line 326 of file mythnvdecinterop.cpp.

Referenced by CreateCUDAContext().

◆ CreateNVDEC()

MythNVDECInterop * MythNVDECInterop::CreateNVDEC	(	MythPlayerUI *	Player,
		MythRenderOpenGL *	Context
	)

static

Definition at line 86 of file mythnvdecinterop.cpp.

Referenced by MythNVDECContext::InitialiseDecoder().

◆ DeleteTextures()

void MythNVDECInterop::DeleteTextures ( void )

overrideprivatevirtual

Reimplemented from MythOpenGLInterop.

Definition at line 45 of file mythnvdecinterop.cpp.

Referenced by Acquire(), and ~MythNVDECInterop().

◆ GetCUDAContext()

CUcontext MythNVDECInterop::GetCUDAContext ( )

Definition at line 81 of file mythnvdecinterop.cpp.

◆ GetNVDECTypes()

void MythNVDECInterop::GetNVDECTypes	(	MythRenderOpenGL *	Render,
		MythInteropGPU::InteropMap &	Types
	)

static

Definition at line 102 of file mythnvdecinterop.cpp.

Referenced by CreateNVDEC(), and MythOpenGLInterop::GetTypes().

◆ InitialiseCuda()

bool MythNVDECInterop::InitialiseCuda ( )

private

Initialise a CUDA context.

Note: We do not use the FFmpeg internal context creation as the created context is deleted before we have a chance to cleanup our own CUDA resources.

Definition at line 321 of file mythnvdecinterop.cpp.

Referenced by MythNVDECInterop().

◆ IsValid()

bool MythNVDECInterop::IsValid ( void )

Definition at line 76 of file mythnvdecinterop.cpp.

◆ RotateReferenceFrames()

void MythNVDECInterop::RotateReferenceFrames ( CUdeviceptr Buffer )

private

Definition at line 420 of file mythnvdecinterop.cpp.

Referenced by Acquire().

Member Data Documentation

◆ m_cudaContext

CUcontext MythNVDECInterop::m_cudaContext {}

private

Definition at line 39 of file mythnvdecinterop.h.

Referenced by Acquire(), DeleteTextures(), GetCUDAContext(), InitialiseCuda(), IsValid(), and ~MythNVDECInterop().

◆ m_cudaFuncs

CudaFunctions* MythNVDECInterop::m_cudaFuncs { nullptr }

private

Definition at line 40 of file mythnvdecinterop.h.

Referenced by Acquire(), DeleteTextures(), InitialiseCuda(), IsValid(), and ~MythNVDECInterop().

◆ m_referenceFrames

QVector<CUdeviceptr> MythNVDECInterop::m_referenceFrames

private

Definition at line 41 of file mythnvdecinterop.h.

Referenced by Acquire(), RotateReferenceFrames(), and ~MythNVDECInterop().

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

mythtv/libs/libmythtv/opengl/mythnvdecinterop.h
mythtv/libs/libmythtv/opengl/mythnvdecinterop.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ MythNVDECInterop()

◆ ~MythNVDECInterop()

Member Function Documentation

◆ Acquire()

◆ CleanupContext()

◆ CreateCUDAContext()

◆ CreateCUDAPriv()

◆ CreateNVDEC()

◆ DeleteTextures()

◆ GetCUDAContext()

◆ GetNVDECTypes()

◆ InitialiseCuda()

◆ IsValid()

◆ RotateReferenceFrames()

Member Data Documentation

◆ m_cudaContext

◆ m_cudaFuncs

◆ m_referenceFrames