MythMediaCodecContext Class Reference

#include <libmythtv/decoders/mythmediacodeccontext.h>

Inheritance diagram for MythMediaCodecContext:

Collaboration diagram for MythMediaCodecContext:

Public Member Functions
	MythMediaCodecContext (DecoderBase *Parent, MythCodecID CodecID)
void	InitVideoCodec (AVCodecContext *Context, bool SelectedStream, bool &DirectRendering) override
int	HwDecoderInit (AVCodecContext *Context) override
bool	RetrieveFrame (AVCodecContext *Context, MythVideoFrame *Frame, AVFrame *AvFrame) override
void	PostProcessFrame (AVCodecContext *, MythVideoFrame *) override
	Mark all MediaCodec decoded frames as progressive,. More...
bool	IsDeinterlacing (bool &DoubleRate, bool=false) override
Public Member Functions inherited from MythCodecContext
	MythCodecContext (DecoderBase *Parent, MythCodecID CodecID)
virtual	~MythCodecContext ()=default
virtual int	FilteredReceiveFrame (AVCodecContext *Context, AVFrame *Frame)
	Retrieve and process/filter AVFrame. More...
virtual void	SetDeinterlacing (AVCodecContext *, MythVideoProfile *, bool)
virtual void	SetDecoderOptions (AVCodecContext *, const AVCodec *)
virtual bool	DecoderWillResetOnFlush (void)
virtual bool	DecoderWillResetOnAspect (void)
virtual bool	DecoderNeedsReset (AVCodecContext *)

Static Public Member Functions
static MythCodecID	GetBestSupportedCodec (AVCodecContext **Context, const AVCodec **Codec, const QString &Decoder, AVStream *Stream, uint StreamType)
static AVPixelFormat	GetFormat (AVCodecContext *, const AVPixelFormat *PixFmt)
static void	GetDecoderList (QStringList &Decoders)
static bool	HaveMediaCodec (bool Reinit=false)
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)

Static Private Member Functions
static MCProfiles &	GetProfiles (void)
static int	InitialiseDecoder (AVCodecContext *Context)

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

Definition at line 16 of file mythmediacodeccontext.h.

Constructor & Destructor Documentation

MythMediaCodecContext()

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

Definition at line 280 of file mythmediacodeccontext.cpp.

Member Function Documentation

InitVideoCodec()

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

overridevirtual

Reimplemented from MythCodecContext.

Definition at line 285 of file mythmediacodeccontext.cpp.

HwDecoderInit()

int MythMediaCodecContext::HwDecoderInit ( AVCodecContext *  Context )

overridevirtual

Reimplemented from MythCodecContext.

Definition at line 298 of file mythmediacodeccontext.cpp.

RetrieveFrame()

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

overridevirtual

Reimplemented from MythCodecContext.

Definition at line 307 of file mythmediacodeccontext.cpp.

GetBestSupportedCodec()

MythCodecID MythMediaCodecContext::GetBestSupportedCodec ( AVCodecContext **  Context, const AVCodec **  Codec, const QString &  Decoder, AVStream *  Stream, uint  StreamType  )

static

Definition at line 220 of file mythmediacodeccontext.cpp.

Referenced by MythCodecContext::FindDecoder().

GetFormat()

AVPixelFormat MythMediaCodecContext::GetFormat ( AVCodecContext *  , const AVPixelFormat *  PixFmt  )

static

Definition at line 316 of file mythmediacodeccontext.cpp.

Referenced by InitVideoCodec().

PostProcessFrame()

void MythMediaCodecContext::PostProcessFrame ( AVCodecContext *  , MythVideoFrame *  Frame  )

overridevirtual

Mark all MediaCodec decoded frames as progressive,.

Note

This may not be appropriate for all devices

Reimplemented from MythCodecContext.

Definition at line 331 of file mythmediacodeccontext.cpp.

IsDeinterlacing()

bool MythMediaCodecContext::IsDeinterlacing ( bool &  DoubleRate, bool  = false  )

overridevirtual

/brief Say yes

Note

As for PostProcessFrame this may not be accurate.

Reimplemented from MythCodecContext.

Definition at line 349 of file mythmediacodeccontext.cpp.

GetDecoderList()

void MythMediaCodecContext::GetDecoderList ( QStringList &  Decoders )

static

Definition at line 494 of file mythmediacodeccontext.cpp.

Referenced by MythCodecContext::GetDecoderDescription().

HaveMediaCodec()

bool MythMediaCodecContext::HaveMediaCodec ( bool  Reinit = false )

static

Definition at line 505 of file mythmediacodeccontext.cpp.

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

GetProfiles()

MCProfiles & MythMediaCodecContext::GetProfiles ( void  )

staticprivate

Definition at line 355 of file mythmediacodeccontext.cpp.

Referenced by GetBestSupportedCodec(), GetDecoderList(), and HaveMediaCodec().

InitialiseDecoder()

int MythMediaCodecContext::InitialiseDecoder ( AVCodecContext *  Context )

staticprivate

Definition at line 173 of file mythmediacodeccontext.cpp.

Referenced by HwDecoderInit().

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

• mythtv/libs/libmythtv/decoders/mythmediacodeccontext.h
• mythtv/libs/libmythtv/decoders/mythmediacodeccontext.cpp