#include <libmythtv/decoders/mythvaapicontext.h>

Inheritance diagram for MythVAAPIContext:

Collaboration diagram for MythVAAPIContext:

Public Member Functions
	MythVAAPIContext (DecoderBase *Parent, MythCodecID CodecID)

	~MythVAAPIContext () override

void	InitVideoCodec (AVCodecContext *Context, bool SelectedStream, bool &DirectRendering) override

bool	RetrieveFrame (AVCodecContext Context, MythVideoFrame Frame, AVFrame *AvFrame) override

int	FilteredReceiveFrame (AVCodecContext Context, AVFrame Frame) override
	Retrieve decoded frame and optionally deinterlace. More...

void	PostProcessFrame (AVCodecContext Context, MythVideoFrame Frame) override

bool	IsDeinterlacing (bool &DoubleRate, bool StreamChange=false) override

bool	DecoderWillResetOnFlush () override

bool	DecoderWillResetOnAspect () override

Public Member Functions inherited from MythCodecContext
	MythCodecContext (DecoderBase *Parent, MythCodecID CodecID)

virtual	~MythCodecContext ()=default

virtual void	InitVideoCodec (AVCodecContext *Context, bool SelectedStream, bool &DirectRendering)

virtual int	HwDecoderInit (AVCodecContext *)

virtual bool	RetrieveFrame (AVCodecContext , MythVideoFrame , AVFrame *)

virtual int	FilteredReceiveFrame (AVCodecContext Context, AVFrame Frame)
	Retrieve and process/filter AVFrame. More...

virtual void	SetDeinterlacing (AVCodecContext , MythVideoProfile , bool)

virtual void	PostProcessFrame (AVCodecContext , MythVideoFrame )

virtual bool	IsDeinterlacing (bool &, bool=false)

virtual void	SetDecoderOptions (AVCodecContext , const AVCodec )

virtual bool	DecoderWillResetOnFlush (void)

virtual bool	DecoderWillResetOnAspect (void)

virtual bool	DecoderNeedsReset (AVCodecContext *)

Static Public Member Functions
static MythCodecID	GetSupportedCodec (AVCodecContext Context, const AVCodec Codec, const QString &Decoder, uint StreamType)
	Confirm whether VAAPI support is available given Decoder and Context. More...

static enum AVPixelFormat	GetFormat (AVCodecContext Context, const AVPixelFormat PixFmt)

static enum AVPixelFormat	GetFormat2 (AVCodecContext Context, const AVPixelFormat PixFmt)

static QString	HaveVAAPI (bool ReCheck=false)
	Check whether VAAPI is available and not emulated via VDPAU. More...

static void	GetDecoderList (QStringList &Decoders)

Static Public Member Functions inherited from MythCodecContext
static MythCodecContext *	CreateContext (DecoderBase *Parent, MythCodecID Codec)

static void	GetDecoders (RenderOptions &Opts, bool Reinit=false)

static QStringList	GetDecoderDescription (void)

static MythCodecID	FindDecoder (const QString &Decoder, AVStream Stream, AVCodecContext Context, const AVCodec *Codec)

static int	GetBuffer (struct AVCodecContext Context, AVFrame Frame, int Flags)
	A generic hardware buffer initialisation method when using AVHWFramesContext. More...

static bool	GetBuffer2 (struct AVCodecContext Context, MythVideoFrame Frame, AVFrame *AvFrame, int Flags)
	A generic hardware buffer initialisation method when AVHWFramesContext is NOT used. More...

static int	InitialiseDecoder (AVCodecContext *Context, CreateHWDecoder Callback, const QString &Debug)
	Initialise a hardware decoder that is expected to use AVHWFramesContext. More...

static int	InitialiseDecoder2 (AVCodecContext *Context, CreateHWDecoder Callback, const QString &Debug)
	Initialise a hardware decoder that is NOT expected to use AVHWFramesContext. More...

static void	ReleaseBuffer (void Opaque, uint8_t Data)

static void	FramesContextFinished (AVHWFramesContext *Context)

static void	DeviceContextFinished (AVHWDeviceContext *Context)

static void	CreateDecoderCallback (void Wait, void Context, void *Callback)

static MythPlayerUI *	GetPlayerUI (AVCodecContext *Context)

static bool	FrameTypeIsSupported (AVCodecContext *Context, VideoFrameType Format)

static AVBufferRef *	CreateDevice (AVHWDeviceType Type, MythInteropGPU *Interop, const QString &Device=QString())

static bool	IsUnsupportedProfile (AVCodecContext *Context)
	Most hardware decoders do not support these codecs/profiles. More...

static QString	GetProfileDescription (CodecProfile Profile, QSize Size, VideoFrameType Format=FMT_NONE, uint ColorDepth=0)

static CodecProfile	FFmpegToMythProfile (AVCodecID CodecID, int Profile)

Private Member Functions
void	DestroyDeinterlacer ()

Static Private Member Functions
static int	InitialiseContext (AVCodecContext *Context)
	Create a VAAPI hardware context with appropriate OpenGL interop. More...

static int	InitialiseContext2 (AVCodecContext *Context)
	Create a VAAPI hardware context without OpenGL interop. More...

static VAProfile	VAAPIProfileForCodec (const AVCodecContext *Codec)

static AVPixelFormat	FramesFormat (AVPixelFormat Format)

static const VAAPIProfiles &	GetProfiles ()

Private Attributes
MythDeintType	m_deinterlacer { DEINT_NONE }

bool	m_deinterlacer2x { false }

bool	m_lastInterlaced { false }

bool	m_lastTopFieldFirst { false }

AVFilterContext *	m_filterSink { nullptr }

AVFilterContext *	m_filterSource { nullptr }

AVFilterGraph *	m_filterGraph { nullptr }

bool	m_filterError { false }

AVBufferRef *	m_framesCtx { nullptr }

std::array< int64_t, 2 >	m_filterPriorPTS { 0 }

int64_t	m_filterPTSUsed { 0 }

int	m_filterWidth { 0 }

int	m_filterHeight { 0 }

Additional Inherited Members
Public Types inherited from MythCodecContext
enum	CodecProfile : std::uint8_t { NoProfile = 0 , MPEG1 , MPEG2 , MPEG2Simple , MPEG2Main , MPEG2422 , MPEG2High , MPEG2Spatial , MPEG2SNR , MPEG4 , MPEG4Simple , MPEG4SimpleScaleable , MPEG4Core , MPEG4Main , MPEG4NBit , MPEG4ScaleableTexture , MPEG4SimpleFace , MPEG4BasicAnimated , MPEG4Hybrid , MPEG4AdvancedRT , MPEG4CoreScaleable , MPEG4AdvancedCoding , MPEG4AdvancedCore , MPEG4AdvancedScaleableTexture , MPEG4SimpleStudio , MPEG4AdvancedSimple , H263 , H264 , H264Baseline , H264ConstrainedBaseline , H264Main , H264MainExtended , H264High , H264High10 , H264Extended , H264High422 , H264High444 , H264ConstrainedHigh , HEVC , HEVCMain , HEVCMain10 , HEVCMainStill , HEVCRext , HEVCMain10HDR , HEVCMain10HDRPlus , VC1 , VC1Simple , VC1Main , VC1Complex , VC1Advanced , VP8 , VP9 , VP9_0 , VP9_1 , VP9_2 , VP9_3 , VP9_2HDR , VP9_2HDRPlus , VP9_3HDR , VP9_3HDRPlus , AV1 , AV1Main , AV1High , AV1Professional , MJPEG }

Protected Member Functions inherited from MythCodecContext
virtual bool	RetrieveHWFrame (MythVideoFrame Frame, AVFrame AvFrame)

Static Protected Member Functions inherited from MythCodecContext
static void	DestroyInterop (MythInteropGPU *Interop)

static void	NewHardwareFramesContext (void)
	Track the number of concurrent frames contexts. More...

Protected Attributes inherited from MythCodecContext
DecoderBase *	m_parent { nullptr }

MythCodecID	m_codecID { kCodec_NONE }

bool	m_resetRequired { false }

Static Protected Attributes inherited from MythCodecContext
static QAtomicInt	s_hwFramesContextCount

Detailed Description

Todo:

Scaling errors when deinterlacing H.264 1080 and for 10bit HEVC 1080p.

Fix crash when skipping to the end of an H.264 stream. Appears to be because the decoder is partially initialised but we never feed it any packets to complete the setup (as we have reached the end of the file). Should be a simple null pointer check in FFmpeg.

Definition at line 23 of file mythvaapicontext.h.

Constructor & Destructor Documentation

◆ MythVAAPIContext()

MythVAAPIContext::MythVAAPIContext	(	DecoderBase *	Parent,
		MythCodecID	CodecID
	)

Definition at line 33 of file mythvaapicontext.cpp.

◆ ~MythVAAPIContext()

MythVAAPIContext::~MythVAAPIContext ( void )

override

Definition at line 38 of file mythvaapicontext.cpp.

Member Function Documentation

◆ DecoderWillResetOnAspect()

bool MythVAAPIContext::DecoderWillResetOnAspect ( void )

overridevirtual

Reimplemented from MythCodecContext.

Definition at line 786 of file mythvaapicontext.cpp.

◆ DecoderWillResetOnFlush()

bool MythVAAPIContext::DecoderWillResetOnFlush ( void )

overridevirtual

Reimplemented from MythCodecContext.

Definition at line 780 of file mythvaapicontext.cpp.

◆ DestroyDeinterlacer()

void MythVAAPIContext::DestroyDeinterlacer ( )

private

Definition at line 792 of file mythvaapicontext.cpp.

Referenced by FilteredReceiveFrame(), PostProcessFrame(), and ~MythVAAPIContext().

◆ FilteredReceiveFrame()

int MythVAAPIContext::FilteredReceiveFrame	(	AVCodecContext *	Context,
		AVFrame *	Frame
	)

overridevirtual

Retrieve decoded frame and optionally deinterlace.

Note: Deinterlacing is setup in PostProcessFrame which has access to deinterlacer preferences.; In testing, A/V sync is broken for a stream with timestamps that increment by 1 (when doublerate deinterlacing). This is presumably an anomaly. NVDEC doublerate deinterlacers produce the same problem.

Reimplemented from MythCodecContext.

Definition at line 611 of file mythvaapicontext.cpp.

◆ FramesFormat()

AVPixelFormat MythVAAPIContext::FramesFormat ( AVPixelFormat Format )

inlinestaticprivate

Definition at line 112 of file mythvaapicontext.cpp.

Referenced by InitialiseContext(), and InitialiseContext2().

◆ GetDecoderList()

void MythVAAPIContext::GetDecoderList ( QStringList & Decoders )

static

Definition at line 563 of file mythvaapicontext.cpp.

Referenced by MythCodecContext::GetDecoderDescription().

◆ GetFormat()

AVPixelFormat MythVAAPIContext::GetFormat	(	AVCodecContext *	Context,
		const AVPixelFormat *	PixFmt
	)

static

Definition at line 204 of file mythvaapicontext.cpp.

Referenced by InitVideoCodec().

◆ GetFormat2()

AVPixelFormat MythVAAPIContext::GetFormat2	(	AVCodecContext *	Context,
		const AVPixelFormat *	PixFmt
	)

static

Definition at line 216 of file mythvaapicontext.cpp.

Referenced by InitVideoCodec().

◆ GetProfiles()

const VAAPIProfiles & MythVAAPIContext::GetProfiles ( void )

staticprivate

Definition at line 460 of file mythvaapicontext.cpp.

Referenced by GetDecoderList(), GetSupportedCodec(), and HaveVAAPI().

◆ GetSupportedCodec()

MythCodecID MythVAAPIContext::GetSupportedCodec	(	AVCodecContext **	Context,
		const AVCodec **	Codec,
		const QString &	Decoder,
		uint	StreamType
	)

static

Confirm whether VAAPI support is available given Decoder and Context.

Definition at line 126 of file mythvaapicontext.cpp.

Referenced by MythCodecContext::FindDecoder().

◆ HaveVAAPI()

QString MythVAAPIContext::HaveVAAPI ( bool ReCheck = false )

static

Check whether VAAPI is available and not emulated via VDPAU.

The VDPAU backend appears to be largely unmaintained, does not expose the full range of VDPAU functionality (deinterlacing, full colourspace handling etc) and in testing fails when used by FFmpeg. So disallow VAAPI over VDPAU - VDPAU should just be used directly.

Definition at line 413 of file mythvaapicontext.cpp.

Referenced by MythCodecContext::GetDecoders(), and GetSupportedCodec().

◆ InitialiseContext()

int MythVAAPIContext::InitialiseContext ( AVCodecContext * Context )

staticprivate

Create a VAAPI hardware context with appropriate OpenGL interop.

Definition at line 230 of file mythvaapicontext.cpp.

Referenced by GetFormat().

◆ InitialiseContext2()

int MythVAAPIContext::InitialiseContext2 ( AVCodecContext * Context )

staticprivate

Create a VAAPI hardware context without OpenGL interop.

Note: Testing with Debian Buster, 10bit copyback requires the i965-va-driver-shaders package instead of i965-va-driver package. Expect a purple screen otherwise:) I suspect this is due to some unnecessary scaling somewhere - as the relevant code should only be hit if scaling is required.

Definition at line 364 of file mythvaapicontext.cpp.

Referenced by GetFormat2().

◆ InitVideoCodec()

void MythVAAPIContext::InitVideoCodec	(	AVCodecContext *	Context,
		bool	SelectedStream,
		bool &	DirectRendering
	)

overridevirtual

Reimplemented from MythCodecContext.

Definition at line 574 of file mythvaapicontext.cpp.

◆ IsDeinterlacing()

bool MythVAAPIContext::IsDeinterlacing	(	bool &	DoubleRate,
		bool	StreamChange = `false`
	)

overridevirtual

Reimplemented from MythCodecContext.

Definition at line 766 of file mythvaapicontext.cpp.

◆ PostProcessFrame()

void MythVAAPIContext::PostProcessFrame	(	AVCodecContext *	Context,
		MythVideoFrame *	Frame
	)

overridevirtual

Reimplemented from MythCodecContext.

Definition at line 674 of file mythvaapicontext.cpp.

◆ RetrieveFrame()

bool MythVAAPIContext::RetrieveFrame	(	AVCodecContext *	Context,
		MythVideoFrame *	Frame,
		AVFrame *	AvFrame
	)

overridevirtual

Reimplemented from MythCodecContext.

Definition at line 594 of file mythvaapicontext.cpp.

◆ VAAPIProfileForCodec()

VAProfile MythVAAPIContext::VAAPIProfileForCodec ( const AVCodecContext * Codec )

staticprivate

Definition at line 43 of file mythvaapicontext.cpp.

Referenced by GetSupportedCodec().

Member Data Documentation

◆ m_deinterlacer

MythDeintType MythVAAPIContext::m_deinterlacer { DEINT_NONE }

private

Definition at line 52 of file mythvaapicontext.h.

Referenced by DestroyDeinterlacer(), IsDeinterlacing(), and PostProcessFrame().

◆ m_deinterlacer2x

bool MythVAAPIContext::m_deinterlacer2x { false }

private

Definition at line 53 of file mythvaapicontext.h.

Referenced by DestroyDeinterlacer(), FilteredReceiveFrame(), IsDeinterlacing(), and PostProcessFrame().

◆ m_filterError

bool MythVAAPIContext::m_filterError { false }

private

Definition at line 59 of file mythvaapicontext.h.

Referenced by PostProcessFrame().

◆ m_filterGraph

AVFilterGraph* MythVAAPIContext::m_filterGraph { nullptr }

private

Definition at line 58 of file mythvaapicontext.h.

Referenced by DestroyDeinterlacer(), FilteredReceiveFrame(), and PostProcessFrame().

◆ m_filterHeight

int MythVAAPIContext::m_filterHeight { 0 }

private

Definition at line 64 of file mythvaapicontext.h.

Referenced by DestroyDeinterlacer(), FilteredReceiveFrame(), and PostProcessFrame().

◆ m_filterPriorPTS

std::array<int64_t,2> MythVAAPIContext::m_filterPriorPTS { 0 }

private

Definition at line 61 of file mythvaapicontext.h.

Referenced by DestroyDeinterlacer(), and FilteredReceiveFrame().

◆ m_filterPTSUsed

int64_t MythVAAPIContext::m_filterPTSUsed { 0 }

private

Definition at line 62 of file mythvaapicontext.h.

Referenced by DestroyDeinterlacer(), and FilteredReceiveFrame().

◆ m_filterSink

AVFilterContext* MythVAAPIContext::m_filterSink { nullptr }

private

Definition at line 56 of file mythvaapicontext.h.

Referenced by DestroyDeinterlacer(), FilteredReceiveFrame(), and PostProcessFrame().

◆ m_filterSource

AVFilterContext* MythVAAPIContext::m_filterSource { nullptr }

private

Definition at line 57 of file mythvaapicontext.h.

Referenced by DestroyDeinterlacer(), FilteredReceiveFrame(), and PostProcessFrame().

◆ m_filterWidth

int MythVAAPIContext::m_filterWidth { 0 }

private

Definition at line 63 of file mythvaapicontext.h.

Referenced by DestroyDeinterlacer(), FilteredReceiveFrame(), and PostProcessFrame().

◆ m_framesCtx

AVBufferRef* MythVAAPIContext::m_framesCtx { nullptr }

private

Definition at line 60 of file mythvaapicontext.h.

Referenced by DestroyDeinterlacer(), and PostProcessFrame().

◆ m_lastInterlaced

bool MythVAAPIContext::m_lastInterlaced { false }

private

Definition at line 54 of file mythvaapicontext.h.

Referenced by FilteredReceiveFrame(), and PostProcessFrame().

◆ m_lastTopFieldFirst

bool MythVAAPIContext::m_lastTopFieldFirst { false }

private

Definition at line 55 of file mythvaapicontext.h.

Referenced by FilteredReceiveFrame(), and PostProcessFrame().

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

mythtv/libs/libmythtv/decoders/mythvaapicontext.h
mythtv/libs/libmythtv/decoders/mythvaapicontext.cpp

Public Member Functions

Static Public Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ MythVAAPIContext()

◆ ~MythVAAPIContext()

Member Function Documentation

◆ DecoderWillResetOnAspect()

◆ DecoderWillResetOnFlush()

◆ DestroyDeinterlacer()

◆ FilteredReceiveFrame()

◆ FramesFormat()

◆ GetDecoderList()

◆ GetFormat()

◆ GetFormat2()

◆ GetProfiles()

◆ GetSupportedCodec()

◆ HaveVAAPI()

◆ InitialiseContext()

◆ InitialiseContext2()

◆ InitVideoCodec()

◆ IsDeinterlacing()

◆ PostProcessFrame()

◆ RetrieveFrame()

◆ VAAPIProfileForCodec()

Member Data Documentation

◆ m_deinterlacer

◆ m_deinterlacer2x

◆ m_filterError

◆ m_filterGraph

◆ m_filterHeight

◆ m_filterPriorPTS

◆ m_filterPTSUsed

◆ m_filterSink

◆ m_filterSource

◆ m_filterWidth

◆ m_framesCtx

◆ m_lastInterlaced

◆ m_lastTopFieldFirst