VideoOutputNullVDPAU Class Reference

A dummy video class that uses VDPAU to decode video frames. More...

#include <videoout_nullvdpau.h>

Inheritance diagram for VideoOutputNullVDPAU:

Public Member Functions
	VideoOutputNullVDPAU ()
	~VideoOutputNullVDPAU ()
virtual bool	Init (int width, int height, float aspect, WId winid, const QRect &win_rect, MythCodecID codec_id)
virtual bool	InputChanged (const QSize &input_size, float aspect, MythCodecID av_codec_id, void *codec_private, bool &aspect_only)
	Tells video output to discard decoded frames and wait for new ones.
virtual bool	SetupDeinterlace (bool, const QString &ovrf="")
	Attempts to enable or disable deinterlacing.
virtual bool	SetDeinterlacingEnabled (bool)
	Attempts to enable/disable deinterlacing using existing deinterlace method when enabling.
virtual bool	ApproveDeintFilter (const QString &filtername) const
	Approves bobdeint filter for XVideo and otherwise defers to VideoOutput::ApproveDeintFilter(const QString&).
virtual void	ClearAfterSeek (void)
	Tells video output to toss decoded buffers due to a seek.
virtual void	ReleaseFrame (VideoFrame *frame)
	Releases a frame from the ready for decoding queue onto the queue of frames ready for display.
virtual void	ProcessFrame (VideoFrame frame, OSD osd, FilterChain *filterList, const PIPMap &pipPlayers, FrameScanType scan)
virtual void	PrepareFrame (VideoFrame buffer, FrameScanType, OSD osd)
virtual void	Show (FrameScanType)
virtual void	Zoom (ZoomDirection direction)
	Sets up zooming into to different parts of the video, the zoom is actually applied in MoveResize().
virtual void	EmbedInWidget (const QRect &rect)
	Tells video output to embed video in an existing window.
virtual void	StopEmbedding (void)
	Tells video output to stop embedding video in an existing window.
virtual void	DrawUnusedRects (bool sync=true)
	Draws non-video portions of the screen.
virtual void	UpdatePauseFrame (int64_t &disp_timecode)
	Updates frame displayed when video is paused.
virtual void	MoveResizeWindow (QRect)
virtual bool	CanVisualise (AudioPlayer audio, MythRender render)
virtual bool	SetupVisualisation (AudioPlayer audio, MythRender render, const QString &name)
virtual MythPainter *	GetOSDPainter (void)
virtual void	DrawSlice (VideoFrame *frame, int x, int y, int w, int h)
	Informs video output of new data for frame, used for hardware accelerated decoding.
virtual VideoFrame *	GetLastDecodedFrame (void)
virtual VideoFrame *	GetLastShownFrame (void)
	Returns frame from the head of the ready to be displayed queue, if StartDisplayingFrame has been called.
virtual void	DoneDisplayingFrame (VideoFrame *frame)
	Releases frame returned from GetLastShownFrame() onto the queue of frames ready for decoding onto.
Static Public Member Functions
static void	GetRenderOptions (render_opts &opts)
static QStringList	GetAllowedRenderers (MythCodecID myth_codec_id)
Private Member Functions
void	TearDown (void)
bool	InitRender (void)
void	DeleteRender (void)
bool	InitBuffers (void)
void	DeleteBuffers (void)
bool	InitShadowBuffers (void)
void	DeleteShadowBuffers (void)
bool	CreateVideoSurfaces (uint num)
void	DeleteVideoSurfaces (void)
void	ClaimVideoSurfaces (void)
void	DiscardFrame (VideoFrame *)
	Releases frame from any queue onto the queue of frames ready for decoding onto.
void	DiscardFrames (bool next_frame_keyframe)
	Releases all frames not being actively displayed from any queue onto the queue of frames ready for decoding onto.
void	CheckFrameStates (void)
bool	BufferSizeCheck (void)
Private Attributes
MythRenderVDPAU *	m_render
QMutex	m_lock
uint	m_decoder
int	m_pix_fmt
uint	m_decoder_buffer_size
QVector< uint >	m_video_surfaces
bool	m_checked_surface_ownership
VideoBuffers *	m_shadowBuffers
QSize	m_surfaceSize

Detailed Description

A dummy video class that uses VDPAU to decode video frames.

The normal VDPAU frames are held in vbuffers and a 'shadow' set of buffers is held in m_shadowBuffers. These are allocated a buffer in main memory.

GetNextFreeFrame() will always return a pointer to a GPU backed buffer.

ReleaseFrame() musted be called with a pointer to a GPU buffer and when invoked (i.e. once decoding is finished) the contents of the GPU buffer are copied to the main memory buffer.

GetLastDecodedFrame() and GetLastShownFrame() will always return a pointer to the frame in main memory.

DoneDisplayingFrame() and DiscardFrame() can be called with either version of the frame.

All buffer state tracking is handled in the main vbuffers object.

Definition at line 30 of file videoout_nullvdpau.h.

Constructor & Destructor Documentation

VideoOutputNullVDPAU::VideoOutputNullVDPAU ( )

Definition at line 26 of file videoout_nullvdpau.cpp.

VideoOutputNullVDPAU::~VideoOutputNullVDPAU ( )

Definition at line 34 of file videoout_nullvdpau.cpp.

Member Function Documentation

void VideoOutputNullVDPAU::GetRenderOptions ( render_opts & opts ) [static]

Reimplemented from VideoOutput.

Definition at line 8 of file videoout_nullvdpau.cpp.

QStringList VideoOutputNullVDPAU::GetAllowedRenderers ( MythCodecID myth_codec_id ) [static]

Definition at line 555 of file videoout_nullvdpau.cpp.

Referenced by VideoOutput::Create().

bool VideoOutputNullVDPAU::Init	(	int	width,
		int	height,
		float	aspect,
		WId	winid,
		const QRect &	win_rect,
		MythCodecID	codec_id
	)			`[virtual]`

Reimplemented from VideoOutput.

Definition at line 47 of file videoout_nullvdpau.cpp.

Referenced by InputChanged().

bool VideoOutputNullVDPAU::InputChanged	(	const QSize &	input_size,
		float	aspect,
		MythCodecID	myth_codec_id,
		void *	codec_private,
		bool &	aspect_only
	)			`[virtual]`

Tells video output to discard decoded frames and wait for new ones.

Bug:: We set the new width height and aspect ratio here, but we should do this based on the new video frames in Show().

Reimplemented from VideoOutput.

Definition at line 519 of file videoout_nullvdpau.cpp.

virtual bool VideoOutputNullVDPAU::SetupDeinterlace	(	bool	i,
		const QString &	ovrf = `""`
	)			`[inline, virtual]`

Attempts to enable or disable deinterlacing.

Returns:: true if successful, false otherwise.

Parameters:

overridefilter

optional, explicitly use this nondefault deint filter

Reimplemented from VideoOutput.

Definition at line 45 of file videoout_nullvdpau.h.

virtual bool VideoOutputNullVDPAU::SetDeinterlacingEnabled ( bool enable ) [inline, virtual]

Attempts to enable/disable deinterlacing using existing deinterlace method when enabling.

Reimplemented from VideoOutput.

Definition at line 46 of file videoout_nullvdpau.h.

virtual bool VideoOutputNullVDPAU::ApproveDeintFilter ( const QString & filtername ) const [inline, virtual]

Approves bobdeint filter for XVideo and otherwise defers to VideoOutput::ApproveDeintFilter(const QString&).

Approves all deinterlace filters, except ones which must be supported by a specific video output class.

Returns:: whether current video output supports a specific filter.

Reimplemented from VideoOutput.

Definition at line 47 of file videoout_nullvdpau.h.

void VideoOutputNullVDPAU::ClearAfterSeek ( void ) [virtual]

Tells video output to toss decoded buffers due to a seek.

Reimplemented from VideoOutput.

Definition at line 375 of file videoout_nullvdpau.cpp.

void VideoOutputNullVDPAU::ReleaseFrame ( VideoFrame * frame ) [virtual]

Releases a frame from the ready for decoding queue onto the queue of frames ready for display.

Reimplemented from VideoOutput.

Definition at line 470 of file videoout_nullvdpau.cpp.

virtual void VideoOutputNullVDPAU::ProcessFrame	(	VideoFrame *	frame,
		OSD *	osd,
		FilterChain *	filterList,
		const PIPMap &	pipPlayers,
		FrameScanType	scan
	)			`[inline, virtual]`

Implements VideoOutput.

Definition at line 50 of file videoout_nullvdpau.h.

virtual void VideoOutputNullVDPAU::PrepareFrame	(	VideoFrame *	buffer,
		FrameScanType	,
		OSD *	osd
	)			`[inline, virtual]`

Implements VideoOutput.

Definition at line 54 of file videoout_nullvdpau.h.

virtual void VideoOutputNullVDPAU::Show ( FrameScanType ) [inline, virtual]

Implements VideoOutput.

Definition at line 56 of file videoout_nullvdpau.h.

virtual void VideoOutputNullVDPAU::Zoom ( ZoomDirection direction ) [inline, virtual]

Sets up zooming into to different parts of the video, the zoom is actually applied in MoveResize().

See also:: ToggleAdjustFill(AdjustFillMode)

Reimplemented from VideoOutput.

Definition at line 58 of file videoout_nullvdpau.h.

virtual void VideoOutputNullVDPAU::EmbedInWidget ( const QRect & rect ) [inline, virtual]

Tells video output to embed video in an existing window.

See also:: StopEmbedding()

Reimplemented from VideoOutput.

Definition at line 59 of file videoout_nullvdpau.h.

virtual void VideoOutputNullVDPAU::StopEmbedding ( void ) [inline, virtual]

Tells video output to stop embedding video in an existing window.

See also:: EmbedInWidget(const QRect&)

Reimplemented from VideoOutput.

Definition at line 60 of file videoout_nullvdpau.h.

virtual void VideoOutputNullVDPAU::DrawUnusedRects ( bool sync = true ) [inline, virtual]

Draws non-video portions of the screen.

Parameters:

sync

if set any queued up draws are sent immediately to the graphics context and we block until they have completed.

Implements VideoOutput.

Definition at line 61 of file videoout_nullvdpau.h.

virtual void VideoOutputNullVDPAU::UpdatePauseFrame ( int64_t & disp_timecode ) [inline, virtual]

Updates frame displayed when video is paused.

Implements VideoOutput.

Definition at line 62 of file videoout_nullvdpau.h.

virtual void VideoOutputNullVDPAU::MoveResizeWindow ( QRect ) [inline, virtual]

Implements VideoOutput.

Definition at line 63 of file videoout_nullvdpau.h.

virtual bool VideoOutputNullVDPAU::CanVisualise	(	AudioPlayer *	audio,
		MythRender *	render
	)			`[inline, virtual]`

Reimplemented from VideoOutput.

Definition at line 64 of file videoout_nullvdpau.h.

virtual bool VideoOutputNullVDPAU::SetupVisualisation	(	AudioPlayer *	audio,
		MythRender *	render,
		const QString &	name
	)			`[inline, virtual]`

Reimplemented from VideoOutput.

Definition at line 66 of file videoout_nullvdpau.h.

virtual MythPainter* VideoOutputNullVDPAU::GetOSDPainter ( void ) [inline, virtual]

Reimplemented from VideoOutput.

Definition at line 68 of file videoout_nullvdpau.h.

void VideoOutputNullVDPAU::DrawSlice	(	VideoFrame *	frame,
		int	x,
		int	y,
		int	w,
		int	h
	)			`[virtual]`

Informs video output of new data for frame, used for hardware accelerated decoding.

Reimplemented from VideoOutput.

Definition at line 229 of file videoout_nullvdpau.cpp.

VideoFrame * VideoOutputNullVDPAU::GetLastDecodedFrame ( void ) [virtual]

Bug:: not implemented correctly. vpos is not updated.

Reimplemented from VideoOutput.

Definition at line 383 of file videoout_nullvdpau.cpp.

VideoFrame * VideoOutputNullVDPAU::GetLastShownFrame ( void ) [virtual]

Returns frame from the head of the ready to be displayed queue, if StartDisplayingFrame has been called.

Reimplemented from VideoOutput.

Definition at line 397 of file videoout_nullvdpau.cpp.

void VideoOutputNullVDPAU::DoneDisplayingFrame ( VideoFrame * frame ) [virtual]

Releases frame returned from GetLastShownFrame() onto the queue of frames ready for decoding onto.

Reimplemented from VideoOutput.

Definition at line 440 of file videoout_nullvdpau.cpp.

void VideoOutputNullVDPAU::TearDown ( void ) [private]

Definition at line 40 of file videoout_nullvdpau.cpp.

Referenced by InputChanged(), and ~VideoOutputNullVDPAU().

bool VideoOutputNullVDPAU::InitRender ( void ) [private]

Definition at line 69 of file videoout_nullvdpau.cpp.

Referenced by Init().

void VideoOutputNullVDPAU::DeleteRender ( void ) [private]

Definition at line 79 of file videoout_nullvdpau.cpp.

Referenced by TearDown().

bool VideoOutputNullVDPAU::InitBuffers ( void ) [private]

Definition at line 94 of file videoout_nullvdpau.cpp.

Referenced by Init().

void VideoOutputNullVDPAU::DeleteBuffers ( void ) [private]

Definition at line 124 of file videoout_nullvdpau.cpp.

Referenced by InitBuffers(), and TearDown().

bool VideoOutputNullVDPAU::InitShadowBuffers ( void ) [private]

Definition at line 134 of file videoout_nullvdpau.cpp.

Referenced by Init().

void VideoOutputNullVDPAU::DeleteShadowBuffers ( void ) [private]

Definition at line 171 of file videoout_nullvdpau.cpp.

Referenced by InitShadowBuffers(), and TearDown().

bool VideoOutputNullVDPAU::CreateVideoSurfaces ( uint num ) [private]

Definition at line 183 of file videoout_nullvdpau.cpp.

Referenced by InitBuffers().

void VideoOutputNullVDPAU::DeleteVideoSurfaces ( void ) [private]

Definition at line 207 of file videoout_nullvdpau.cpp.

Referenced by DeleteBuffers().

void VideoOutputNullVDPAU::ClaimVideoSurfaces ( void ) [private]

Definition at line 217 of file videoout_nullvdpau.cpp.

Referenced by DrawSlice().

void VideoOutputNullVDPAU::DiscardFrame ( VideoFrame * frame ) [private, virtual]

Releases frame from any queue onto the queue of frames ready for decoding onto.

Reimplemented from VideoOutput.

Definition at line 411 of file videoout_nullvdpau.cpp.

Referenced by DoneDisplayingFrame().

void VideoOutputNullVDPAU::DiscardFrames ( bool kf ) [private, virtual]

Releases all frames not being actively displayed from any queue onto the queue of frames ready for decoding onto.

Reimplemented from VideoOutput.

Definition at line 563 of file videoout_nullvdpau.cpp.

Referenced by ClearAfterSeek(), and DeleteBuffers().

void VideoOutputNullVDPAU::CheckFrameStates ( void ) [private, virtual]

Reimplemented from VideoOutput.

Definition at line 574 of file videoout_nullvdpau.cpp.

Referenced by DiscardFrames(), and DoneDisplayingFrame().

bool VideoOutputNullVDPAU::BufferSizeCheck ( void ) [private]

Definition at line 601 of file videoout_nullvdpau.cpp.

Referenced by DiscardFrame(), DoneDisplayingFrame(), GetLastDecodedFrame(), GetLastShownFrame(), and ReleaseFrame().

Member Data Documentation

MythRenderVDPAU* VideoOutputNullVDPAU::m_render [private]

Definition at line 92 of file videoout_nullvdpau.h.

Referenced by ClaimVideoSurfaces(), CreateVideoSurfaces(), DeleteRender(), DeleteVideoSurfaces(), DrawSlice(), InitBuffers(), InitRender(), InitShadowBuffers(), and ReleaseFrame().

QMutex VideoOutputNullVDPAU::m_lock [private]

Definition at line 93 of file videoout_nullvdpau.h.

Referenced by CheckFrameStates(), ClaimVideoSurfaces(), ClearAfterSeek(), DeleteBuffers(), DeleteRender(), DeleteShadowBuffers(), DiscardFrame(), DiscardFrames(), DoneDisplayingFrame(), DrawSlice(), Init(), InitBuffers(), InitRender(), InitShadowBuffers(), InputChanged(), and ~VideoOutputNullVDPAU().

uint VideoOutputNullVDPAU::m_decoder [private]

Definition at line 94 of file videoout_nullvdpau.h.

Referenced by DeleteRender(), and DrawSlice().

int VideoOutputNullVDPAU::m_pix_fmt [private]

Definition at line 95 of file videoout_nullvdpau.h.

Referenced by DeleteRender(), and DrawSlice().

uint VideoOutputNullVDPAU::m_decoder_buffer_size [private]

Definition at line 96 of file videoout_nullvdpau.h.

Referenced by DrawSlice(), InitBuffers(), and InitShadowBuffers().

QVector<uint> VideoOutputNullVDPAU::m_video_surfaces [private]

Definition at line 97 of file videoout_nullvdpau.h.

Referenced by ClaimVideoSurfaces(), CreateVideoSurfaces(), DeleteVideoSurfaces(), DrawSlice(), InitBuffers(), and InitShadowBuffers().

bool VideoOutputNullVDPAU::m_checked_surface_ownership [private]

Definition at line 98 of file videoout_nullvdpau.h.

Referenced by ClaimVideoSurfaces(), DeleteBuffers(), and DrawSlice().

VideoBuffers* VideoOutputNullVDPAU::m_shadowBuffers [private]

Definition at line 99 of file videoout_nullvdpau.h.

Referenced by BufferSizeCheck(), DeleteShadowBuffers(), DiscardFrame(), DoneDisplayingFrame(), DrawSlice(), GetLastDecodedFrame(), GetLastShownFrame(), InitShadowBuffers(), and ReleaseFrame().

QSize VideoOutputNullVDPAU::m_surfaceSize [private]

Definition at line 100 of file videoout_nullvdpau.h.

Referenced by DrawSlice(), and InitShadowBuffers().

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

VideoOutputNullVDPAU Class Reference

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation