VideoOutput Class Reference

#include <videooutbase.h>

Inheritance diagram for VideoOutput:

Detailed Description

This class serves as the base class for all video output methods.

The basic use is:

 VideoOutputType type = kVideoOutput_Default;
 vo = VideoOutput::InitVideoOut(type);
 vo->Init(width, height, aspect ...);

 // Then create two threads.
 // In the decoding thread
 while (decoding)
 {
     if (vo->WaitForAvailable(1000)
     {
         frame = vo->GetNextFreeFrame(); // remove frame from "available"
         av_lib_process(frame);   // do something to fill it.
         // call DrawSlice()      // if you need piecemeal processing
                                  // by VideoOutput use DrawSlice
         vo->ReleaseFrame(frame); // enqueues frame in "used" queue
     }
 }
  
 // In the displaying thread
 while (playing)
 {
     if (vo->EnoughPrebufferedFrames())
     {
         // Sets "Last Shown Frame" to head of "used" queue
         vo->StartDisplayingFrame();
         // Get pointer to "Last Shown Frame"
         frame = vo->GetLastShownFrame();
         // add OSD, do any filtering, etc.
         vo->ProcessFrame(frame, osd, filters, pict-in-pict);
         // tells show what frame to be show, do other last minute stuff
         vo->PrepareFrame(frame, scan);
         // here you wait until it's time to show the frame
         // Show blits the last prepared frame to the screen
         // as quickly as possible.
         vo->Show(scan);
         // remove frame from the head of "used",
         // vo must get it into "available" eventually.
         vo->DoneDisplayingFrame();
     }
 }
 delete vo;

Note: Show() may be called multiple times between PrepareFrame() and DoneDisplayingFrame(). But if a frame is ever removed from available via GetNextFreeFrame(), you must either call DoneDisplayFrame() or call DiscardFrame(VideoFrame*) on it.

Note: ProcessFrame() may be called multiple times on a frame, to update an OSD for example.

The VideoBuffers class handles the buffer tracking, see it for more details on the states a buffer can take before it becomes available for reuse.

See also:: VideoBuffers, NuppelVideoPlayer

Definition at line 31 of file videooutbase.h.


Public Member Functions
	VideoOutput ()
	This constructor for VideoOutput must be followed by an Init(int,int,float,WId,int,int,int,int,WId) call.
virtual	~VideoOutput ()
	Shuts down video output.
virtual bool	Init (int width, int height, float aspect, WId winid, int winx, int winy, int winw, int winh, WId embedid=0)
	Performs most of the initialization for VideoOutput.
virtual void	InitOSD (OSD *osd)
virtual void	SetVideoFrameRate (float)
virtual bool	SetDeinterlacingEnabled (bool)
	Attempts to enable/disable deinterlacing using existing deinterlace method when enabling.
virtual bool	SetupDeinterlace (bool i, const QString &ovrf="")
	Attempts to enable or disable deinterlacing.
virtual void	FallbackDeint (void)
	Fallback to non-frame-rate-doubling deinterlacing method.
virtual void	BestDeint (void)
	Change to the best deinterlacing method.
virtual bool	NeedsDoubleFramerate (void) const
	Approves bobdeint filter for XVideo and XvMC surfaces, rejects other filters for XvMC, and defers to VideoOutput::ApproveDeintFilter(const QString&) otherwise.
virtual bool	IsBobDeint (void) const
virtual bool	IsExtraProcessingRequired (void) const
	Should Prepare() and Show() and ProcessFrame be called twice for every Frameloop().
virtual bool	ApproveDeintFilter (const QString &filtername) const
	Approves all deinterlace filters, except ones which must be supported by a specific video output class.
virtual void	PrepareFrame (VideoFrame *buffer, FrameScanType)=0
virtual void	Show (FrameScanType)=0
virtual bool	InputChanged (const QSize &input_size, float aspect, MythCodecID myth_codec_id, void *codec_private)
	Tells video output to discard decoded frames and wait for new ones.
virtual void	VideoAspectRatioChanged (float aspect)
	Calls SetVideoAspectRatio(float aspect), then calls MoveResize() to apply changes.
virtual void	EmbedInWidget (WId wid, int x, int y, int w, int h)
	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	ResizeForGui (void)
virtual void	ResizeForVideo (void)
virtual void	MoveResize (void)
	performs all the calculations for video framing and any resizing.
virtual void	Zoom (ZoomDirection direction)
	Sets up zooming into to different parts of the video, the zoom is actually applied in MoveResize().
virtual void	GetDrawSize (int &xoff, int &yoff, int &width, int &height)
	Returns video output width, height, and location.
virtual void	GetOSDBounds (QRect &visible, QRect &total, float &pixelAspect, float &fontScale, float themeaspect) const
virtual int	GetRefreshRate (void)=0
	Returns current display's frame refresh period in microseconds.
virtual void	DrawSlice (VideoFrame *frame, int x, int y, int w, int h)
	Informs video output of new data for frame, used for XvMC acceleration.
virtual void	DrawUnusedRects (bool sync=true)=0
	Draws non-video portions of the screen.
virtual float	GetDisplayAspect (void) const
	Returns current display aspect ratio.
AspectOverrideMode	GetAspectOverride (void)
	Returns current aspect override mode.
void	ToggleAspectOverride (AspectOverrideMode aspectOverrideMode=kAspect_Toggle)
	Enforce different aspect ration than detected, then calls VideoAspectRatioChanged(float) to apply them.
AdjustFillMode	GetAdjustFill (void)
	Returns current adjust fill mode.
void	ToggleAdjustFill (AdjustFillMode adjustFillMode=kAdjustFill_Toggle)
	Sets up letterboxing for various standard video frame and monitor dimensions, then calls MoveResize() to apply them.
virtual void	ProcessFrame (VideoFrame frame, OSD osd, FilterChain filterList, NuppelVideoPlayer pipPlayer)=0
void	ExposeEvent (void)
	Tells video output that a full repaint is needed.
PictureAttributeSupported	GetSupportedPictureAttributes (void) const
int	ChangePictureAttribute (PictureAttribute, bool direction)
virtual int	SetPictureAttribute (PictureAttribute, int newValue)
	Sets a specified picture attribute.
int	GetPictureAttribute (PictureAttribute) const
virtual void	InitPictureAttributes (void)
bool	AllowPreviewEPG (void)
virtual bool	hasMCAcceleration (void) const
	Returns true iff Motion Compensation acceleration is available.
virtual bool	hasIDCTAcceleration (void) const
	Returns true iff Inverse Discrete Cosine Transform acceleration is available.
virtual bool	hasVLDAcceleration (void) const
	Returns true iff VLD acceleration is available.
virtual void	SetFramesPlayed (long long fp)
	Sets the number of frames played.
virtual long long	GetFramesPlayed (void)
	Returns the number of frames played.
bool	IsErrored ()
	Returns true if a fatal error has been encountered.
void	SetPrebuffering (bool normal)
	Sets whether to use a normal number of buffers or fewer buffers.
virtual void	ClearAfterSeek (void)
	Tells video output to toss decoded buffers due to a seek.
bool	WaitForAvailable (uint w)
	Blocks until a frame is available for decoding onto.
virtual int	ValidVideoFrames (void) const
	Returns number of frames that are fully decoded.
int	FreeVideoFrames (void)
	Returns number of frames available for decoding onto.
bool	EnoughFreeFrames (void)
	Returns true iff enough frames are available to decode onto.
bool	EnoughDecodedFrames (void)
	Returns true iff there are plenty of decoded frames ready for display.
bool	EnoughPrebufferedFrames (void)
	Returns true iff we have at least the minimum number of decoded frames ready for display.
bool	IsEmbedding (void)
	Returns if videooutput is embedding.
virtual VideoFrame *	GetNextFreeFrame (bool with_lock=false, bool allow_unsafe=false)
	Blocks until it is possible to return a frame for decoding onto.
virtual void	ReleaseFrame (VideoFrame *frame)
	Releases a frame from the ready for decoding queue onto the queue of frames ready for display.
virtual void	DeLimboFrame (VideoFrame *frame)
	Releases a frame for reuse if it is in limbo.
virtual void	StartDisplayingFrame (void)
	Tell GetLastShownFrame() to return the next frame from the head of the queue of frames to display.
virtual void	DoneDisplayingFrame (void)
	Releases frame returned from GetLastShownFrame() onto the queue of frames ready for decoding onto.
virtual void	DiscardFrame (VideoFrame *frame)
	Releases frame from any queue onto the queue of frames ready for decoding onto.
virtual void	DiscardFrames (bool kf)
	Releases all frames not being actively displayed from any queue onto the queue of frames ready for decoding onto.
virtual void	CheckFrameStates (void)
VideoFrame *	GetLastDecodedFrame (void)
VideoFrame *	GetLastShownFrame (void)
	Returns frame from the head of the ready to be displayed queue, if StartDisplayingFrame has been called.
QString	GetFrameStatus (void) const
	Returns string with status of each frame for debugging.
virtual void	UpdatePauseFrame (void)=0
	Updates frame displayed when video is paused.
void	SetVideoResize (const QRect &videoRect)
	Tells the player to resize the video frame (used for ITV).
void	SetVideoScalingAllowed (bool change)
	Disable or enable underscan/overscan.
bool	IsVideoScalingAllowed (void)
	check if video underscan/overscan is allowed
virtual QRect	GetPIPRect (int location, NuppelVideoPlayer *pipplayer=NULL)
	returns QRect of PIP based on PIPLocation
QString	GetFilters (void) const
Static Public Member Functions
static VideoOutput *	Create (const QString &decoder, MythCodecID codec_id, void *codec_priv, const QSize &video_dim, float video_aspect, WId win_id, const QRect &display_rect, WId embed_id)
Protected Types
typedef QMap< PictureAttribute, int >	PictureSettingMap
Protected Member Functions
void	InitBuffers (int numdecode, bool extra_for_pause, int need_free, int needprebuffer_normal, int needprebuffer_small, int keepprebuffer)
virtual void	ShowPip (VideoFrame frame, NuppelVideoPlayer pipplayer)
	Composites PiP image onto a video frame.
virtual int	DisplayOSD (VideoFrame frame, OSD osd, int stride=-1, int revision=-1)
	If the OSD has changed, this will convert the OSD buffer to the OSDSurface's color format.
virtual void	SetPictureAttributeDBValue (PictureAttribute attributeType, int newValue)
virtual QRect	GetVisibleOSDBounds (float &, float &, float) const
virtual QRect	GetTotalOSDBounds (void) const
	Returns total OSD bounds.
void	DoPipResize (int pipwidth, int pipheight)
	Sets up Picture in Picture image resampler.
void	ShutdownPipResize (void)
	Shuts down Picture in Picture image resampler.
void	ResizeVideo (VideoFrame *frame)
void	DoVideoResize (const QSize &inDim, const QSize &outDim)
	Sets up Picture in Picture image resampler.
virtual void	ShutdownVideoResize (void)
void	SetVideoAspectRatio (float aspect)
	Sets VideoOutput::video_aspect to aspect, and sets VideoOutput::overriden_video_aspect if aspectoverride is set to either 4:3, 14:9 or 16:9.
void	ApplyManualScaleAndMove (void)
	Apply scales and moves from "Zoom Mode" settings.
void	ApplyDBScaleAndMove (void)
	Apply scales and moves for "Overscan" and "Underscan" DB settings.
void	ApplyLetterboxing (void)
void	ApplySnapToVideoRect (void)
	Snap displayed rectagle to video rectange if they are close.
void	PrintMoveResizeDebug (void)
Static Protected Member Functions
static void	CopyFrame (VideoFrame to, const VideoFrame from)
	Copies frame data from one VideoFrame to another.
Protected Attributes
QSize	db_display_dim
	Screen dimensions in millimeters from DB.
QPoint	db_move
	Percentage move from database.
float	db_scale_horiz
	Horizontal Overscan/Underscan percentage.
float	db_scale_vert
	Vertical Overscan/Underscan percentage.
PIPLocation	db_pip_location
int	db_pip_size
	percentage of full window to use for PiP
PictureSettingMap	db_pict_attr
	Picture settings.
AspectOverrideMode	db_aspectoverride
AdjustFillMode	db_adjustfill
LetterBoxColour	db_letterbox_colour
QString	db_deint_filtername
bool	db_use_picture_controls
VideoDisplayProfile *	db_vdisp_profile
float	mz_scale_v
	Manually applied vertical scaling.
float	mz_scale_h
	Manually applied horizontal scaling.
QPoint	mz_move
	Manually applied percentage move.
QSize	display_dim
	Screen dimensions of playback window in mm.
float	display_aspect
	Physical aspect ratio of playback window.
QSize	video_dim
	Pixel dimensions of video buffer.
QSize	video_disp_dim
	Pixel dimensions of video display area.
float	video_aspect
	Physical aspect ratio of video.
float	overriden_video_aspect
	Normally this is the same as videoAspect, but may not be if the user has toggled the aspect override mode.
AspectOverrideMode	aspectoverride
	AspectOverrideMode to use to modify overriden_video_aspect.
AdjustFillMode	adjustfill
	Zoom mode.
QRect	video_rect
	Pixel rectangle in video frame to display.
QRect	display_video_rect
	Pixel rectangle in display window into which video_rect maps to.
QRect	display_visible_rect
	Visible portion of display window in pixels.
QRect	tmp_display_visible_rect
	Used to save the display_visible_rect for restoration after video embedding ends.
QSize	pip_desired_display_size
QSize	pip_display_size
QSize	pip_video_size
unsigned char *	pip_tmp_buf
ImgReSampleContext *	pip_scaling_context
VideoFrame	pip_tmp_image
bool	vsz_enabled
QRect	vsz_desired_display_rect
QSize	vsz_display_size
QSize	vsz_video_size
unsigned char *	vsz_tmp_buf
ImgReSampleContext *	vsz_scale_context
bool	m_deinterlacing
QString	m_deintfiltername
FilterManager *	m_deintFiltMan
FilterChain *	m_deintFilter
bool	m_deinterlaceBeforeOSD
VideoBuffers	vbuffers
	VideoBuffers instance used to track video output buffers.
bool	embedding
bool	needrepaint
bool	allowpreviewepg
bool	errored
long long	framesPlayed
bool	db_scaling_allowed
	disable this to prevent overscan/underscan
PictureAttributeSupported	supported_attributes
Static Protected Attributes
static const float	kManualZoomMaxHorizontalZoom = 2.0f
static const float	kManualZoomMaxVerticalZoom = 2.0f
static const float	kManualZoomMinHorizontalZoom = 0.5f
static const float	kManualZoomMinVerticalZoom = 0.5f
static const int	kManualZoomMaxMove = 50

Member Typedef Documentation

typedef QMap<PictureAttribute,int> VideoOutput::PictureSettingMap [protected]

Definition at line 256 of file videooutbase.h.

Constructor & Destructor Documentation

VideoOutput::VideoOutput ( )

This constructor for VideoOutput must be followed by an Init(int,int,float,WId,int,int,int,int,WId) call.

Definition at line 260 of file videooutbase.cpp.

VideoOutput::~VideoOutput ( ) [virtual]

Shuts down video output.

Definition at line 347 of file videooutbase.cpp.

Member Function Documentation

VideoOutput * VideoOutput::Create	(	const QString &	decoder,
		MythCodecID	codec_id,
		void *	codec_priv,
		const QSize &	video_dim,
		float	video_aspect,
		WId	win_id,
		const QRect &	display_rect,
		WId	embed_id
	)			`[static]`

Definition at line 66 of file videooutbase.cpp.

Referenced by NuppelVideoPlayer::InitVideo().

bool VideoOutput::Init	(	int	width,
		int	height,
		float	aspect,
		WId	winid,
		int	winx,
		int	winy,
		int	winw,
		int	winh,
		WId	embedid = `0`
	)			`[virtual]`

Performs most of the initialization for VideoOutput.

Returns:: true if successful, false otherwise.

Reimplemented in VideoOutputD3D, VideoOutputDirectfb, VideoOutputDX, VideoOutputIvtv, VideoOutputNull, VideoOutputQuartz, and VideoOutputXv.

Definition at line 366 of file videooutbase.cpp.

Referenced by Create(), VideoOutputXv::Init(), VideoOutputQuartz::Init(), VideoOutputNull::Init(), VideoOutputIvtv::Init(), VideoOutputDX::Init(), VideoOutputDirectfb::Init(), VideoOutputD3D::Init(), and NuppelVideoPlayer::InitVideo().

void VideoOutput::InitOSD ( OSD * osd ) [virtual]

Definition at line 396 of file videooutbase.cpp.

Referenced by NuppelVideoPlayer::StartPlaying().

void VideoOutput::SetVideoFrameRate ( float playback_fps ) [virtual]

Reimplemented in VideoOutputQuartz.

Definition at line 407 of file videooutbase.cpp.

Referenced by NuppelVideoPlayer::DoPlay(), and NuppelVideoPlayer::ReinitVideo().

bool VideoOutput::SetDeinterlacingEnabled ( bool enable ) [virtual]

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

Reimplemented in VideoOutputXv.

Definition at line 417 of file videooutbase.cpp.

Referenced by VideoOutputXv::SetDeinterlacingEnabled(), and NuppelVideoPlayer::SetScanType().

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

Attempts to enable or disable deinterlacing.

Returns:: true if successful, false otherwise.

Parameters:

overridefilter

optional, explicitly use this nondefault deint filter

Reimplemented in VideoOutputNull, and VideoOutputXv.

Definition at line 436 of file videooutbase.cpp.

Referenced by BestDeint(), FallbackDeint(), NuppelVideoPlayer::OutputVideoLoop(), SetDeinterlacingEnabled(), VideoOutputXv::SetDeinterlacingEnabledOpenGL(), VideoOutputXv::SetupDeinterlace(), and VideoOutputXv::SetupDeinterlaceOpenGL().

void VideoOutput::FallbackDeint ( void ) [virtual]

Fallback to non-frame-rate-doubling deinterlacing method.

Definition at line 508 of file videooutbase.cpp.

Referenced by NuppelVideoPlayer::DoPlay(), and NuppelVideoPlayer::FallbackDeint().

void VideoOutput::BestDeint ( void ) [virtual]

Change to the best deinterlacing method.

Definition at line 517 of file videooutbase.cpp.

Referenced by NuppelVideoPlayer::DoPlay(), and InputChanged().

bool VideoOutput::NeedsDoubleFramerate ( void ) const [virtual]

Approves bobdeint filter for XVideo and XvMC surfaces, rejects other filters for XvMC, and defers to VideoOutput::ApproveDeintFilter(const QString&) otherwise.

Should Prepare() and Show() be called twice for every ProcessFrame().

Returns:: whether current video output supports a specific filter.
m_deintfiltername == "bobdeint" && m_deinterlacing

Definition at line 542 of file videooutbase.cpp.

Referenced by NuppelVideoPlayer::DoPlay(), NuppelVideoPlayer::OutputVideoLoop(), and NuppelVideoPlayer::SetScanType().

bool VideoOutput::IsBobDeint ( void ) const [virtual]

Definition at line 551 of file videooutbase.cpp.

Referenced by VideoOutputXv::ProcessFrameMem(), and VideoOutputXv::ProcessFrameOpenGL().

bool VideoOutput::IsExtraProcessingRequired ( void ) const [virtual]

Should Prepare() and Show() and ProcessFrame be called twice for every Frameloop().

All adaptive full framerate deinterlacers require an extra ProcessFrame() call.

Returns:: true if deint name contains doubleprocess

Definition at line 532 of file videooutbase.cpp.

Referenced by NuppelVideoPlayer::DoPlay(), NuppelVideoPlayer::OutputVideoLoop(), and NuppelVideoPlayer::SetScanType().

bool VideoOutput::ApproveDeintFilter ( const QString & filtername ) const [virtual]

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

Reimplemented in VideoOutputXv.

Definition at line 561 of file videooutbase.cpp.

Referenced by VideoOutputXv::ApproveDeintFilter(), and SetupDeinterlace().

virtual void VideoOutput::PrepareFrame	(	VideoFrame *	buffer,
		FrameScanType
	)			`[pure virtual]`

Implemented in VideoOutputD3D, VideoOutputDirectfb, VideoOutputDX, VideoOutputIvtv, VideoOutputNull, VideoOutputQuartz, and VideoOutputXv.

Referenced by NuppelVideoPlayer::AVSync(), and NuppelVideoPlayer::DisplayPauseFrame().

virtual void VideoOutput::Show ( FrameScanType ) [pure virtual]

Implemented in VideoOutputD3D, VideoOutputDirectfb, VideoOutputDX, VideoOutputIvtv, VideoOutputNull, VideoOutputQuartz, and VideoOutputXv.

Referenced by NuppelVideoPlayer::AVSync(), and NuppelVideoPlayer::DisplayPauseFrame().

bool VideoOutput::InputChanged	(	const QSize &	input_size,
		float	aspect,
		MythCodecID	myth_codec_id,
		void *	codec_private
	)			`[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 in VideoOutputD3D, VideoOutputDirectfb, VideoOutputDX, VideoOutputIvtv, VideoOutputNull, VideoOutputQuartz, and VideoOutputXv.

Definition at line 601 of file videooutbase.cpp.

Referenced by VideoOutputXv::InputChanged(), VideoOutputQuartz::InputChanged(), VideoOutputNull::InputChanged(), VideoOutputIvtv::InputChanged(), VideoOutputDX::InputChanged(), VideoOutputDirectfb::InputChanged(), VideoOutputD3D::InputChanged(), and NuppelVideoPlayer::ReinitVideo().

void VideoOutput::VideoAspectRatioChanged ( float aspect ) [virtual]

Calls SetVideoAspectRatio(float aspect), then calls MoveResize() to apply changes.

Parameters:

aspect

video aspect ratio to use

Reimplemented in VideoOutputQuartz, and VideoOutputXv.

Definition at line 589 of file videooutbase.cpp.

Referenced by Init(), NuppelVideoPlayer::SetForcedAspectRatio(), ToggleAspectOverride(), VideoOutputXv::VideoAspectRatioChanged(), and VideoOutputQuartz::VideoAspectRatioChanged().

void VideoOutput::EmbedInWidget	(	WId	wid,
		int	x,
		int	y,
		int	w,
		int	h
	)			`[virtual]`

Tells video output to embed video in an existing window.

Parameters:

	wid	window to embed in.
	x	X location where to locate video
	y	Y location where to locate video
	w	width of video
	h	height of video

See also:: StopEmbedding()

Reimplemented in VideoOutputD3D, VideoOutputDX, VideoOutputNull, VideoOutputQuartz, and VideoOutputXv.

Definition at line 633 of file videooutbase.cpp.

Referenced by VideoOutputXv::EmbedInWidget(), VideoOutputQuartz::EmbedInWidget(), VideoOutputNull::EmbedInWidget(), VideoOutputDX::EmbedInWidget(), VideoOutputD3D::EmbedInWidget(), NuppelVideoPlayer::EmbedInWidget(), and NuppelVideoPlayer::InitVideo().

void VideoOutput::StopEmbedding ( void ) [virtual]

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

See also:: EmbedInWidget(WId, int, int, int, int)

Reimplemented in VideoOutputD3D, VideoOutputDX, VideoOutputNull, VideoOutputQuartz, and VideoOutputXv.

Definition at line 658 of file videooutbase.cpp.

Referenced by VideoOutputXv::StopEmbedding(), VideoOutputQuartz::StopEmbedding(), VideoOutputNull::StopEmbedding(), VideoOutputDX::StopEmbedding(), VideoOutputD3D::StopEmbedding(), and NuppelVideoPlayer::StopEmbedding().

virtual void VideoOutput::ResizeForGui ( void ) [inline, virtual]

Reimplemented in VideoOutputXv.

Definition at line 70 of file videooutbase.h.

Referenced by TV::doEditSchedule().

virtual void VideoOutput::ResizeForVideo ( void ) [inline, virtual]

Reimplemented in VideoOutputXv.

Definition at line 71 of file videooutbase.h.

Referenced by TV::doEditSchedule().

void VideoOutput::MoveResize ( void ) [virtual]

performs all the calculations for video framing and any resizing.

First we apply playback over/underscanning and offsetting, then we letterbox settings, and finally we apply manual scale & move properties for "Zoom Mode".

See also:: Zoom(ZoomDirection), ToggleAdjustFill(int)

Reimplemented in VideoOutputDirectfb, VideoOutputDX, VideoOutputQuartz, and VideoOutputXv.

Definition at line 1112 of file videooutbase.cpp.

Referenced by EmbedInWidget(), VideoOutputNull::Init(), VideoOutputIvtv::Init(), VideoOutputD3D::Init(), VideoOutputNull::InputChanged(), VideoOutputIvtv::InputChanged(), VideoOutputD3D::InputChanged(), VideoOutputXv::MoveResize(), VideoOutputQuartz::MoveResize(), VideoOutputDX::MoveResize(), VideoOutputDirectfb::MoveResize(), SetVideoScalingAllowed(), StopEmbedding(), ToggleAdjustFill(), VideoAspectRatioChanged(), and VideoOutputNull::Zoom().

void VideoOutput::Zoom ( ZoomDirection direction ) [virtual]

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

See also:: ToggleAdjustFill(AdjustFillMode)

Reimplemented in VideoOutputD3D, VideoOutputDirectfb, VideoOutputDX, VideoOutputNull, VideoOutputQuartz, and VideoOutputXv.

Definition at line 1153 of file videooutbase.cpp.

Referenced by VideoOutputXv::Zoom(), VideoOutputQuartz::Zoom(), VideoOutputNull::Zoom(), VideoOutputDX::Zoom(), VideoOutputDirectfb::Zoom(), and NuppelVideoPlayer::Zoom().

void VideoOutput::GetDrawSize	(	int &	xoff,
		int &	yoff,
		int &	width,
		int &	height
	)			`[virtual]`

Returns video output width, height, and location.

Parameters:

	xoff	X location where video is located in window
	yoff	Y location where video is located in window
	width	width of video output
	height	height of video output

Definition at line 689 of file videooutbase.cpp.

void VideoOutput::GetOSDBounds	(	QRect &	visible,
		QRect &	total,
		float &	pixelAspect,
		float &	fontScale,
		float	themeaspect
	)			const `[virtual]`

Definition at line 697 of file videooutbase.cpp.

Referenced by NuppelVideoPlayer::ReinitOSD(), and NuppelVideoPlayer::StartPlaying().

virtual int VideoOutput::GetRefreshRate ( void ) [pure virtual]

Returns current display's frame refresh period in microseconds.

e.g. 1000000 / frame_rate_in_Hz

Implemented in VideoOutputD3D, VideoOutputDirectfb, VideoOutputDX, VideoOutputIvtv, VideoOutputNull, VideoOutputQuartz, and VideoOutputXv.

Referenced by NuppelVideoPlayer::InitAVSync(), and NuppelVideoPlayer::OutputVideoLoop().

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

Informs video output of new data for frame, used for XvMC acceleration.

Reimplemented in VideoOutputXv.

Definition at line 672 of file videooutbase.cpp.

Referenced by NuppelVideoPlayer::DrawSlice().

virtual void VideoOutput::DrawUnusedRects ( bool sync = true ) [pure 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.

Implemented in VideoOutputD3D, VideoOutputDirectfb, VideoOutputDX, VideoOutputIvtv, VideoOutputNull, VideoOutputQuartz, and VideoOutputXv.

Referenced by NuppelVideoPlayer::DrawUnusedRects().

virtual float VideoOutput::GetDisplayAspect ( void ) const [inline, virtual]

Returns current display aspect ratio.

Reimplemented in VideoOutputD3D, and VideoOutputDX.

Definition at line 93 of file videooutbase.h.

Referenced by ApplyLetterboxing(), GetVisibleOSDBounds(), VideoOutputXv::GetVisibleOSDBounds(), PrintMoveResizeDebug(), and ShowPip().

AspectOverrideMode VideoOutput::GetAspectOverride ( void ) [inline]

Returns current aspect override mode.

See also:: ToggleAspectOverride(AspectOverrideMode)

Definition at line 97 of file videooutbase.h.

Referenced by NuppelVideoPlayer::GetAspectOverride().

void VideoOutput::ToggleAspectOverride ( AspectOverrideMode aspectOverrideMode = kAspect_Toggle )

Enforce different aspect ration than detected, then calls VideoAspectRatioChanged(float) to apply them.

See also:: Zoom(ZoomDirection), ToggleAdjustFill(AdjustFillMode)

Definition at line 1229 of file videooutbase.cpp.

Referenced by NuppelVideoPlayer::ToggleAspectOverride().

AdjustFillMode VideoOutput::GetAdjustFill ( void ) [inline]

Returns current adjust fill mode.

See also:: ToggleAdjustFill(AdjustFillMode)

Definition at line 103 of file videooutbase.h.

Referenced by NuppelVideoPlayer::GetAdjustFill().

void VideoOutput::ToggleAdjustFill ( AdjustFillMode adjustFillMode = kAdjustFill_Toggle )

Sets up letterboxing for various standard video frame and monitor dimensions, then calls MoveResize() to apply them.

See also:: Zoom(ZoomDirection), ToggleAspectOverride(AspectOverrideMode)

Definition at line 1249 of file videooutbase.cpp.

Referenced by NuppelVideoPlayer::ToggleAdjustFill().

virtual void VideoOutput::ProcessFrame	(	VideoFrame *	frame,
		OSD *	osd,
		FilterChain *	filterList,
		NuppelVideoPlayer *	pipPlayer
	)			`[pure virtual]`

Implemented in VideoOutputD3D, VideoOutputDirectfb, VideoOutputDX, VideoOutputIvtv, VideoOutputNull, VideoOutputQuartz, and VideoOutputXv.

Referenced by NuppelVideoPlayer::AVSync(), NuppelVideoPlayer::DisplayNormalFrame(), NuppelVideoPlayer::DisplayPauseFrame(), and NuppelVideoPlayer::IvtvVideoLoop().

void VideoOutput::ExposeEvent ( void ) [inline]

Tells video output that a full repaint is needed.

Definition at line 112 of file videooutbase.h.

Referenced by NuppelVideoPlayer::ExposeEvent().

PictureAttributeSupported VideoOutput::GetSupportedPictureAttributes ( void ) const [inline]

Definition at line 114 of file videooutbase.h.

Referenced by TV::BuildOSDTreeMenu(), and next().

int VideoOutput::ChangePictureAttribute	(	PictureAttribute	attributeType,
		bool	direction
	)

Definition at line 1259 of file videooutbase.cpp.

Referenced by TV::DoChangePictureAttribute().

int VideoOutput::SetPictureAttribute	(	PictureAttribute	attribute,
		int	newValue
	)			`[virtual]`

Sets a specified picture attribute.

Parameters:

	attribute	Picture attribute to set.
	newValue	Value to set attribute to.

Returns:: Set value if it succeeds, -1 if it does not.

Reimplemented in VideoOutputDirectfb, VideoOutputDX, and VideoOutputXv.

Definition at line 1283 of file videooutbase.cpp.

Referenced by ChangePictureAttribute(), and InitPictureAttributes().

int VideoOutput::GetPictureAttribute ( PictureAttribute attributeType ) const

Definition at line 1290 of file videooutbase.cpp.

Referenced by ChangePictureAttribute(), TV::DoTogglePictureAttribute(), and VideoOutputXv::SetPictureAttribute().

void VideoOutput::InitPictureAttributes ( void ) [virtual]

Reimplemented in VideoOutputXv.

Definition at line 1298 of file videooutbase.cpp.

Referenced by VideoOutputDX::Init(), VideoOutputDirectfb::Init(), and VideoOutputXv::InitPictureAttributes().

bool VideoOutput::AllowPreviewEPG ( void ) [inline]

Definition at line 121 of file videooutbase.h.

Referenced by TV::doEditSchedule(), and TV::VideoThemeCheck().

virtual bool VideoOutput::hasMCAcceleration ( void ) const [inline, virtual]

Returns true iff Motion Compensation acceleration is available.

Reimplemented in VideoOutputXv.

Definition at line 124 of file videooutbase.h.

Referenced by NuppelVideoPlayer::AVSync(), and NuppelVideoPlayer::CheckPrebuffering().

virtual bool VideoOutput::hasIDCTAcceleration ( void ) const [inline, virtual]

Returns true iff Inverse Discrete Cosine Transform acceleration is available.

Reimplemented in VideoOutputXv.

Definition at line 127 of file videooutbase.h.

Referenced by NuppelVideoPlayer::AVSync(), and NuppelVideoPlayer::CheckPrebuffering().

virtual bool VideoOutput::hasVLDAcceleration ( void ) const [inline, virtual]

Returns true iff VLD acceleration is available.

Reimplemented in VideoOutputXv.

Definition at line 129 of file videooutbase.h.

Referenced by NuppelVideoPlayer::AVSync(), and NuppelVideoPlayer::CheckPrebuffering().

virtual void VideoOutput::SetFramesPlayed ( long long fp ) [inline, virtual]

Sets the number of frames played.

Definition at line 132 of file videooutbase.h.

Referenced by DecoderBase::DoFastForward(), AvFormatDecoder::DoFastForward(), DecoderBase::DoRewind(), and DecoderBase::UpdateDVDFramesPlayed().

virtual long long VideoOutput::GetFramesPlayed ( void ) [inline, virtual]

Returns the number of frames played.

Reimplemented in VideoOutputIvtv.

Definition at line 134 of file videooutbase.h.

Referenced by NuppelVideoPlayer::Pause(), and NuppelVideoPlayer::StartPlaying().

bool VideoOutput::IsErrored ( void ) [inline]

Returns true if a fatal error has been encountered.

Definition at line 137 of file videooutbase.h.

Referenced by NuppelVideoPlayer::AVSync(), NuppelVideoPlayer::DisplayPauseFrame(), VideoOutputXv::PrepareFrame(), VideoOutputDX::PrepareFrame(), VideoOutputD3D::PrepareFrame(), VideoOutputXv::ProcessFrame(), VideoOutputDX::ProcessFrame(), VideoOutputD3D::ProcessFrame(), NuppelVideoPlayer::ReinitVideo(), VideoOutputXv::Show(), VideoOutputDX::Show(), and VideoOutputD3D::Show().

void VideoOutput::SetPrebuffering ( bool normal ) [inline]

Sets whether to use a normal number of buffers or fewer buffers.

Definition at line 141 of file videooutbase.h.

Referenced by NuppelVideoPlayer::DoPause(), NuppelVideoPlayer::DoPlay(), and AvFormatDecoder::GetFrame().

virtual void VideoOutput::ClearAfterSeek ( void ) [inline, virtual]

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

Reimplemented in VideoOutputXv.

Definition at line 143 of file videooutbase.h.

Referenced by NuppelVideoPlayer::ClearAfterSeek().

bool VideoOutput::WaitForAvailable ( uint w ) [inline]

Blocks until a frame is available for decoding onto.

Definition at line 145 of file videooutbase.h.

Referenced by NuppelVideoPlayer::GetFrame().

virtual int VideoOutput::ValidVideoFrames ( void ) const [inline, virtual]

Returns number of frames that are fully decoded.

Reimplemented in VideoOutputIvtv.

Definition at line 148 of file videooutbase.h.

Referenced by NuppelVideoPlayer::AVSync(), NuppelVideoPlayer::DisplayNormalFrame(), NuppelVideoPlayer::IsReallyNearEnd(), and NuppelVideoPlayer::OutputVideoLoop().

int VideoOutput::FreeVideoFrames ( void ) [inline]

Returns number of frames available for decoding onto.

Definition at line 151 of file videooutbase.h.

bool VideoOutput::EnoughFreeFrames ( void ) [inline]

Returns true iff enough frames are available to decode onto.

Definition at line 153 of file videooutbase.h.

Referenced by NuppelVideoPlayer::GetFrame(), and NuppelVideoPlayer::PrebufferEnoughFrames().

bool VideoOutput::EnoughDecodedFrames ( void ) [inline]

Returns true iff there are plenty of decoded frames ready for display.

Definition at line 156 of file videooutbase.h.

Referenced by NuppelVideoPlayer::CheckPrebuffering(), and NuppelVideoPlayer::PrebufferEnoughFrames().

bool VideoOutput::EnoughPrebufferedFrames ( void ) [inline]

Returns true iff we have at least the minimum number of decoded frames ready for display.

Definition at line 159 of file videooutbase.h.

Referenced by NuppelVideoPlayer::CheckPrebuffering(), and NuppelVideoPlayer::PrebufferEnoughFrames().

bool VideoOutput::IsEmbedding ( void ) [inline]

Returns if videooutput is embedding.

Definition at line 162 of file videooutbase.h.

Referenced by NuppelVideoPlayer::IsEmbedding().

virtual VideoFrame* VideoOutput::GetNextFreeFrame	(	bool	with_lock = `false`,
		bool	allow_unsafe = `false`
	)			`[inline, virtual]`

Blocks until it is possible to return a frame for decoding onto.

Parameters:

	with_lock	if true frames are properly locked, but this means you must unlock them when you are done, so this is disabled by default.
	allow_unsafe	if true then that are queued for display can be returned as frames to decode onto, this defaults to false.

Reimplemented in VideoOutputIvtv.

Definition at line 171 of file videooutbase.h.

Referenced by NuppelVideoPlayer::GetNextVideoFrame().

virtual void VideoOutput::ReleaseFrame ( VideoFrame * frame ) [inline, virtual]

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

Definition at line 176 of file videooutbase.h.

Referenced by NuppelVideoPlayer::ReleaseNextVideoFrame().

virtual void VideoOutput::DeLimboFrame ( VideoFrame * frame ) [inline, virtual]

Releases a frame for reuse if it is in limbo.

Definition at line 178 of file videooutbase.h.

Referenced by AvFormatDecoder::GenerateDummyVideoFrame(), NuppelDecoder::GetFrame(), release_avf_buffer(), and release_nuppel_buffer().

virtual void VideoOutput::StartDisplayingFrame ( void ) [inline, virtual]

Tell GetLastShownFrame() to return the next frame from the head of the queue of frames to display.

Definition at line 181 of file videooutbase.h.

Referenced by NuppelVideoPlayer::DisplayNormalFrame().

virtual void VideoOutput::DoneDisplayingFrame ( void ) [inline, virtual]

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

Reimplemented in VideoOutputXv.

Definition at line 184 of file videooutbase.h.

Referenced by NuppelVideoPlayer::DisplayNormalFrame(), and Transcode::TranscodeFile().

virtual void VideoOutput::DiscardFrame ( VideoFrame * frame ) [inline, virtual]

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

Reimplemented in VideoOutputXv.

Definition at line 187 of file videooutbase.h.

Referenced by NuppelVideoPlayer::DiscardVideoFrame().

virtual void VideoOutput::DiscardFrames ( bool kf ) [inline, virtual]

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

Reimplemented in VideoOutputXv.

Definition at line 190 of file videooutbase.h.

Referenced by NuppelVideoPlayer::DiscardVideoFrames(), and InputChanged().

virtual void VideoOutput::CheckFrameStates ( void ) [inline, virtual]

Reimplemented in VideoOutputXv.

Definition at line 192 of file videooutbase.h.

Referenced by NuppelVideoPlayer::PrebufferEnoughFrames().

VideoFrame* VideoOutput::GetLastDecodedFrame ( void ) [inline]

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

Definition at line 195 of file videooutbase.h.

Referenced by NuppelVideoPlayer::GetRawVideoFrame(), NuppelVideoPlayer::GetScreenGrabAtFrame(), Transcode::TranscodeFile(), and NuppelVideoPlayer::TranscodeGetNextFrame().

VideoFrame* VideoOutput::GetLastShownFrame ( void ) [inline]

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

Definition at line 199 of file videooutbase.h.

Referenced by NuppelVideoPlayer::AVSync(), NuppelVideoPlayer::DisplayAVSubtitles(), NuppelVideoPlayer::DisplayDVDButton(), NuppelVideoPlayer::DisplayNormalFrame(), NuppelVideoPlayer::DisplayTextSubtitles(), NuppelVideoPlayer::ExpireSubtitles(), NuppelVideoPlayer::GetCurrentFrame(), NuppelVideoPlayer::ShowText(), and VideoOutputXv::ShowXVideo().

QString VideoOutput::GetFrameStatus ( void ) const [inline]

Returns string with status of each frame for debugging.

Definition at line 202 of file videooutbase.h.

Referenced by AvFormatDecoderPrivate::DecodeMPEG2Video(), and NuppelVideoPlayer::PrebufferEnoughFrames().

virtual void VideoOutput::UpdatePauseFrame ( void ) [pure virtual]

Updates frame displayed when video is paused.

Implemented in VideoOutputD3D, VideoOutputDirectfb, VideoOutputDX, VideoOutputIvtv, VideoOutputNull, VideoOutputQuartz, and VideoOutputXv.

Referenced by NuppelVideoPlayer::DisplayPauseFrame().

void VideoOutput::SetVideoResize ( const QRect & videoRect )

Tells the player to resize the video frame (used for ITV).

Definition at line 1658 of file videooutbase.cpp.

Referenced by NuppelVideoPlayer::SetVideoResize().

void VideoOutput::SetVideoScalingAllowed ( bool change )

Disable or enable underscan/overscan.

Definition at line 1678 of file videooutbase.cpp.

bool VideoOutput::IsVideoScalingAllowed ( void ) [inline]

check if video underscan/overscan is allowed

Definition at line 213 of file videooutbase.h.

QRect VideoOutput::GetPIPRect	(	int	location,
		NuppelVideoPlayer *	pipplayer = `NULL`
	)			`[virtual]`

returns QRect of PIP based on PIPLocation

Reimplemented in VideoOutputXv.

Definition at line 1326 of file videooutbase.cpp.

Referenced by VideoOutputXv::GetPIPRect().

QString VideoOutput::GetFilters ( void ) const

Definition at line 402 of file videooutbase.cpp.

Referenced by NuppelVideoPlayer::InitFilters().

void VideoOutput::InitBuffers	(	int	numdecode,
		bool	extra_for_pause,
		int	need_free,
		int	needprebuffer_normal,
		int	needprebuffer_small,
		int	keepprebuffer
	)			`[protected]`

void VideoOutput::ShowPip	(	VideoFrame *	frame,
		NuppelVideoPlayer *	pipplayer
	)			`[protected, virtual]`

Composites PiP image onto a video frame.

Note: This only works with memory backed VideoFrames, that is not XvMC.

Parameters:

	frame	Frame to composite PiP onto.
	pipplayer	Picture-in-Picture NVP.

Reimplemented in VideoOutputIvtv, and VideoOutputXv.

Definition at line 1416 of file videooutbase.cpp.

Referenced by VideoOutputQuartz::ProcessFrame(), VideoOutputDX::ProcessFrame(), VideoOutputDirectfb::ProcessFrame(), VideoOutputD3D::ProcessFrame(), and VideoOutputXv::ShowPip().

int VideoOutput::DisplayOSD	(	VideoFrame *	frame,
		OSD *	osd,
		int	stride = `-1`,
		int	revision = `-1`
	)			`[protected, virtual]`

If the OSD has changed, this will convert the OSD buffer to the OSDSurface's color format.

If the destination format is either IA44 or AI44 the osd is converted to greyscale.

Returns:: 1 if changed, -1 on error and 0 otherwise

Reimplemented in VideoOutputXv.

Definition at line 1709 of file videooutbase.cpp.

Referenced by VideoOutputXv::DisplayOSD(), VideoOutputQuartz::ProcessFrame(), VideoOutputIvtv::ProcessFrame(), VideoOutputDX::ProcessFrame(), VideoOutputDirectfb::ProcessFrame(), and VideoOutputD3D::ProcessFrame().

void VideoOutput::SetPictureAttributeDBValue	(	PictureAttribute	attributeType,
		int	newValue
	)			`[protected, virtual]`

Definition at line 1305 of file videooutbase.cpp.

Referenced by VideoOutputXv::SetPictureAttribute(), VideoOutputDX::SetPictureAttribute(), and VideoOutputDirectfb::SetPictureAttribute().

QRect VideoOutput::GetVisibleOSDBounds	(	float &	visible_aspect,
		float &	font_scaling,
		float	themeaspect
	)			const `[protected, virtual]`

Reimplemented in VideoOutputXv.

Definition at line 716 of file videooutbase.cpp.

Referenced by GetOSDBounds(), and VideoOutputXv::GetVisibleOSDBounds().

QRect VideoOutput::GetTotalOSDBounds ( void ) const [protected, virtual]

Returns total OSD bounds.

Reimplemented in VideoOutputXv.

Definition at line 772 of file videooutbase.cpp.

Referenced by GetOSDBounds().

void VideoOutput::CopyFrame	(	VideoFrame *	to,
		const VideoFrame *	from
	)			`[static, protected]`

Copies frame data from one VideoFrame to another.

Note: The frames must have the same width, height, and format.

Parameters:

	to	The destination frame.
	from	The source frame

Reimplemented in VideoOutputXv.

Definition at line 1775 of file videooutbase.cpp.

Referenced by VideoOutputXv::CopyFrame(), VideoOutputDirectfb::PrepareFrame(), VideoOutputQuartz::ProcessFrame(), VideoOutputDX::ProcessFrame(), VideoOutputDirectfb::ProcessFrame(), VideoOutputD3D::ProcessFrame(), VideoOutputNull::UpdatePauseFrame(), VideoOutputDirectfb::UpdatePauseFrame(), and VideoOutputD3D::UpdatePauseFrame().

void VideoOutput::DoPipResize	(	int	pipwidth,
		int	pipheight
	)			`[protected]`

Sets up Picture in Picture image resampler.

Parameters:

	pipwidth	input width
	pipheight	input height

See also:: ShutdownPipResize(), ShowPip(VideoFrame*,NuppelVideoPlayer*)

Definition at line 1365 of file videooutbase.cpp.

Referenced by ShowPip(), and VideoOutputIvtv::ShowPip().

void VideoOutput::ShutdownPipResize ( void ) [protected]

Shuts down Picture in Picture image resampler.

See also:: VideoOutput::DoPipResize(int,int), ShowPip(VideoFrame*,NuppelVideoPlayer*)

Definition at line 1390 of file videooutbase.cpp.

Referenced by DoPipResize(), and ~VideoOutput().

void VideoOutput::ResizeVideo ( VideoFrame * frame ) [protected]

Definition at line 1574 of file videooutbase.cpp.

Referenced by DisplayOSD().

void VideoOutput::DoVideoResize	(	const QSize &	inDim,
		const QSize &	outDim
	)			`[protected]`

Sets up Picture in Picture image resampler.

Parameters:

	inDim	input width and height
	outDim	output width and height

See also:: ShutdownPipResize(), ShowPip(VideoFrame*,NuppelVideoPlayer*)

Definition at line 1556 of file videooutbase.cpp.

Referenced by ResizeVideo().

void VideoOutput::ShutdownVideoResize ( void ) [protected, virtual]

Reimplemented in VideoOutputXv.

Definition at line 1639 of file videooutbase.cpp.

Referenced by DoVideoResize(), ResizeVideo(), SetVideoResize(), VideoOutputXv::ShutdownVideoResize(), and ~VideoOutput().

void VideoOutput::SetVideoAspectRatio ( float aspect ) [protected]

Sets VideoOutput::video_aspect to aspect, and sets VideoOutput::overriden_video_aspect if aspectoverride is set to either 4:3, 14:9 or 16:9.

Parameters:

aspect

video aspect ratio to use

Definition at line 577 of file videooutbase.cpp.

Referenced by InputChanged(), and VideoAspectRatioChanged().

void VideoOutput::ApplyManualScaleAndMove ( void ) [protected]

Apply scales and moves from "Zoom Mode" settings.

Definition at line 780 of file videooutbase.cpp.

Referenced by MoveResize().

void VideoOutput::ApplyDBScaleAndMove ( void ) [protected]

Apply scales and moves for "Overscan" and "Underscan" DB settings.

It doesn't make any sense to me to offset an image such that it is clipped. Therefore, we only apply offsets if there is an underscan or overscan which creates "room" to move the image around. That is, if we overscan, we can move the "viewport". If we underscan, we change where we place the image into the display window. If no over/underscanning is performed, you just get the full original image scaled into the full display area.

Definition at line 817 of file videooutbase.cpp.

Referenced by MoveResize().

void VideoOutput::ApplyLetterboxing ( void ) [protected]

Definition at line 928 of file videooutbase.cpp.

Referenced by MoveResize().

void VideoOutput::ApplySnapToVideoRect ( void ) [protected]

Snap displayed rectagle to video rectange if they are close.

If our display rectangle is within 5% of the video rectangle in either dimension then snap the display rectangle in that dimension to the video rectangle. The idea is to avoid scaling if it will result in only moderate distortion.

Definition at line 1031 of file videooutbase.cpp.

Referenced by MoveResize().

void VideoOutput::PrintMoveResizeDebug ( void ) [protected]

Definition at line 1066 of file videooutbase.cpp.

Referenced by MoveResize().