VideoBuffers Class Reference

#include <videobuffers.h>

Detailed Description

This class creates tracks the state of the buffers used by various VideoOutput derived classes.

The states available for a buffer are: available, limbo, used, process, and displayed.

The two most important states are available and used. Used is implemented as a FIFO, and is used to buffer frames ready for display. A decoder may decode frames out of order but must add them to the used queue in order. The available buffers are buffers that are ready to be used by the decoder.

Generally a buffer leaves the available state via GetNextFreeFrame(bool,bool,BufferType) and enters the limbo state. It then leaves the limbo state via ReleaseFrame(VideoFrame*) and enters the used state. Then it leaves the used state via DoneDisplayingFrame() and enters the available state.

At any point, DiscardFrame(VideoFrame*) can be called to remove the frame from the current state and add it to the available list.

However, there are two additional states available, these are currently used by VideoOutputXv for XvMC support. These are the process and displayed state. The process state simply indicates that the frame has been picked up in the VideoOutput::ProcessFrame() call, but VideoOutput::Show() has not yet used the frame. This is needed because a frame other than a used frame is being held by VideoOutput and we don't want to lose it if the stream is reset. The displayed state indicates that DoneDisplayingFrame() has been called for the frame, but it can not yet be added to available because it is still being displayed. VideoOutputXv calls DiscardFrame(VideoFrame*) on the frames no longer being displayed at the end of the next DoneDisplayingFrame(), finally adding them to available.

Frame locking is also available, the locks are reqursive QMutex locks. If more than one frame lock is needed the LockFrames should generally be called with all the needed locks in the list, and no locks currently held. This function will spin until all the locks can be held at once, avoiding deadlocks from mismatched locking order.

The only method that returns with a lock held on the VideoBuffers object itself, preventing anyone else from using the VideoBuffers class, inluding to unlocking frames, is the begin_lock(BufferType). This method is to be used with extreme caution, in particular one should not attempt to acquire any locks before end_lock() is called.

There are also frame inheritence tracking functions, these are used by VideoOutputXv to avoid throwing away displayed frames too early. See videoout_xv.cpp for their use.

See also:: VideoOutput

Definition at line 60 of file videobuffers.h.


Public Member Functions
	VideoBuffers ()
virtual	~VideoBuffers ()
void	Init (uint numdecode, bool extra_for_pause, uint need_free, uint needprebuffer_normal, uint needprebuffer_small, uint keepprebuffer, bool enable_frame_locking=false)
	Creates buffers and sets various buffer management parameters.
bool	CreateBuffers (int width, int height, vector< unsigned char * > bufs, vector< YUVInfo > yuvinfo)
bool	CreateBuffers (int width, int height)
void	DeleteBuffers (void)
void	Reset (void)
	Resets the class so that Init may be called again.
void	DiscardFrames (bool next_frame_keyframe)
	Mark all used frames as ready to be reused, this is for seek.
void	ClearAfterSeek (void)
void	SetPrebuffering (bool normal)
	Sets prebuffering state to normal, or small.
VideoFrame *	GetNextFreeFrame (bool with_lock, bool allow_unsafe, BufferType enqueue_to=kVideoBuffer_limbo)
	Gets a frame from available buffers list.
void	ReleaseFrame (VideoFrame *frame)
	Frame is ready to be for filtering or OSD application.
void	DeLimboFrame (VideoFrame *frame)
	If the frame is still in the limbo state it is added to the available queue.
void	StartDisplayingFrame (void)
	Sets rpos to index of videoframe at head of used queue.
void	DoneDisplayingFrame (void)
	Removes frame from used queue and adds it to the available list.
void	DiscardFrame (VideoFrame *frame)
	Frame is ready to be reused by decoder.
VideoFrame *	at (uint i)
VideoFrame *	dequeue (BufferType)
VideoFrame *	head (BufferType)
VideoFrame *	tail (BufferType)
void	requeue (BufferType dst, BufferType src, int num=1)
void	enqueue (BufferType, VideoFrame *)
void	safeEnqueue (BufferType, VideoFrame *frame)
void	remove (BufferType, VideoFrame *)
frame_queue_t::iterator	begin_lock (BufferType)
frame_queue_t::iterator	end (BufferType)
void	end_lock ()
uint	size (BufferType type) const
bool	contains (BufferType type, VideoFrame *) const
VideoFrame *	GetScratchFrame (void)
const VideoFrame *	GetScratchFrame () const
VideoFrame *	GetLastDecodedFrame (void)
VideoFrame *	GetLastShownFrame (void)
void	SetLastShownFrameToScratch ()
bool	WaitForAvailable (uint w)
uint	ValidVideoFrames (void) const
uint	FreeVideoFrames (void) const
bool	EnoughFreeFrames (void) const
bool	EnoughDecodedFrames (void) const
bool	EnoughPrebufferedFrames (void) const
const VideoFrame *	at (uint i) const
const VideoFrame *	GetLastDecodedFrame (void) const
const VideoFrame *	GetLastShownFrame (void) const
uint	size () const
uint	allocSize () const
void	LockFrame (const VideoFrame , const char owner)
void	LockFrames (vector< const VideoFrame * > &, const char *owner)
bool	TryLockFrame (const VideoFrame , const char owner)
void	UnlockFrame (const VideoFrame , const char owner)
void	UnlockFrames (vector< const VideoFrame * > &, const char *owner)
void	AddInheritence (const VideoFrame *frame)
void	RemoveInheritence (const VideoFrame *frame)
frame_queue_t	Children (const VideoFrame *frame)
bool	HasChildren (const VideoFrame *frame)
void	Clear (uint i, int fourcc)
void	Clear (int fourcc)
VideoFrame *	PastFrame (const VideoFrame *frame)
VideoFrame *	FutureFrame (const VideoFrame *frame)
VideoFrame *	GetOSDFrame (const VideoFrame *frame)
void	SetOSDFrame (VideoFrame frame, VideoFrame osd)
VideoFrame *	GetOSDParent (const VideoFrame *osd)
bool	CreateBuffers (int width, int height, Display disp, void xvmc_ctx, void xvmc_surf_info, vector< void > surfs)
QString	GetStatus (int n=-1) const
Private Member Functions
frame_queue_t *	queue (BufferType type)
const frame_queue_t *	queue (BufferType type) const
VideoFrame *	GetNextFreeFrameInternal (bool with_lock, bool allow_unsafe, BufferType enqueue_to)
Private Attributes
frame_queue_t	available
frame_queue_t	used
frame_queue_t	limbo
frame_queue_t	pause
frame_queue_t	displayed
frame_queue_t	decode
vbuffer_map_t	vbufferMap
frame_vector_t	buffers
uchar_vector_t	allocated_structs
uchar_vector_t	allocated_arrays
frame_map_t	parents
frame_map_t	children
QWaitCondition	available_wait
uint	numbuffers
uint	needfreeframes
uint	needprebufferframes
uint	needprebufferframes_normal
uint	needprebufferframes_small
uint	keepprebufferframes
bool	need_extra_for_pause
uint	rpos
uint	vpos
QMutex	global_lock
bool	use_frame_locks
QMutex	frame_lock
frame_lock_map_t	frame_locks
surf_to_frame_map_t	xvmc_surf_to_frame
frame_to_frame_map_t	xvmc_osd_parent

Constructor & Destructor Documentation

VideoBuffers::VideoBuffers ( )

Definition at line 112 of file videobuffers.cpp.

VideoBuffers::~VideoBuffers ( ) [virtual]

Definition at line 121 of file videobuffers.cpp.

Member Function Documentation

void VideoBuffers::Init	(	uint	numdecode,
		bool	extra_for_pause,
		uint	need_free,
		uint	needprebuffer_normal,
		uint	needprebuffer_small,
		uint	keepprebuffer,
		bool	enable_frame_locking = `false`
	)

Creates buffers and sets various buffer management parameters.

This normally creates numdecode buffers, but it creates one more buffer if extra_for_pause is true. Only numdecode buffers are added to available and hence into the buffer management handled by VideoBuffers. The availability of any scratch frame must be managed by the video output class itself.

Parameters:

	numdecode	number of buffers to allocate for normal use
	extra_for_pause	allocate an extra buffer, a scratch a frame for pause
	need_free	maximum number of buffers needed in display and pause
	needprebuffer_normal	number buffers you can put in used or limbo normally
	needprebuffer_small	number of buffers you can put in used or limbo after SetPrebuffering(false) has been called.
	keepprebuffer	number of buffers in used or limbo that are considered enough for decent playback.
	enable_frame_locking	if true, the frames will be locked with a mutex, this makes XvMC decoding safe, but adds some CPU overhead. It is normally left off.

Definition at line 150 of file videobuffers.cpp.

Referenced by CreateBuffers(), VideoOutputQuartz::Init(), VideoOutputNull::Init(), VideoOutputDX::Init(), VideoOutputDirectfb::Init(), VideoOutputD3D::Init(), and VideoOutputXv::InitVideoBuffers().

bool VideoBuffers::CreateBuffers	(	int	width,
		int	height,
		vector< unsigned char * >	bufs,
		vector< YUVInfo >	yuvinfo
	)

Definition at line 1113 of file videobuffers.cpp.

Referenced by VideoOutputXv::CreateBuffers(), DirectfbData::CreateBuffers(), CreateBuffers(), VideoOutputQuartz::CreateQuartzBuffers(), VideoOutputXv::CreateXvMCBuffers(), VideoOutputNull::Init(), VideoOutputDX::Init(), VideoOutputD3D::Init(), VideoOutputNull::InputChanged(), VideoOutputDX::InputChanged(), and VideoOutputD3D::InputChanged().

bool VideoBuffers::CreateBuffers	(	int	width,
		int	height
	)

Definition at line 1106 of file videobuffers.cpp.

void VideoBuffers::DeleteBuffers ( void )

Definition at line 1240 of file videobuffers.cpp.

Referenced by VideoOutputXv::DeleteBuffers(), VideoOutputQuartz::DeleteQuartzBuffers(), VideoOutputDX::Exit(), VideoOutputD3D::Exit(), VideoOutputNull::InputChanged(), VideoOutputDX::InputChanged(), VideoOutputD3D::InputChanged(), ~VideoBuffers(), and VideoOutputNull::~VideoOutputNull().

void VideoBuffers::Reset ( void )

Resets the class so that Init may be called again.

Definition at line 192 of file videobuffers.cpp.

Referenced by CreateBuffers(), Init(), and VideoOutputXv::InitVideoBuffers().

void VideoBuffers::DiscardFrames ( bool next_frame_keyframe )

Mark all used frames as ready to be reused, this is for seek.

Definition at line 653 of file videobuffers.cpp.

Referenced by VideoOutput::DiscardFrames(), VideoOutputXv::DiscardFrames(), GetNextFreeFrame(), and VideoOutputNull::InputChanged().

void VideoBuffers::ClearAfterSeek ( void )

Definition at line 731 of file videobuffers.cpp.

Referenced by VideoOutput::ClearAfterSeek().

void VideoBuffers::SetPrebuffering ( bool normal )

Sets prebuffering state to normal, or small.

Definition at line 222 of file videobuffers.cpp.

Referenced by VideoOutput::SetPrebuffering().

VideoFrame * VideoBuffers::GetNextFreeFrame	(	bool	with_lock,
		bool	allow_unsafe,
		BufferType	enqueue_to = `kVideoBuffer_limbo`
	)

Gets a frame from available buffers list.

Parameters:

	with_lock	locks the frame, so that UnlockFrame() must be called before anyone else can use it.
	allow_unsafe	allows busy buffers to be used if no available buffers exist. Historic, should never be used.
	enqueue_to	put new frame in some state other than limbo.

Definition at line 298 of file videobuffers.cpp.

Referenced by VideoOutput::GetNextFreeFrame(), VideoOutputXv::GetNextFreeFrame(), and VideoOutputXv::ProcessFrameXvMC().

void VideoBuffers::ReleaseFrame ( VideoFrame * frame )

Frame is ready to be for filtering or OSD application.

Removes frame from limbo and adds it to used queue.

Parameters:

frame

Frame to move to used.

Definition at line 338 of file videobuffers.cpp.

Referenced by VideoOutput::ReleaseFrame().

void VideoBuffers::DeLimboFrame ( VideoFrame * frame )

If the frame is still in the limbo state it is added to the available queue.

Parameters:

frame

Frame to move to used.

Definition at line 353 of file videobuffers.cpp.

Referenced by VideoOutput::DeLimboFrame().

void VideoBuffers::StartDisplayingFrame ( void )

Sets rpos to index of videoframe at head of used queue.

Definition at line 374 of file videobuffers.cpp.

Referenced by VideoOutput::StartDisplayingFrame().

void VideoBuffers::DoneDisplayingFrame ( void )

Removes frame from used queue and adds it to the available list.

Definition at line 384 of file videobuffers.cpp.

Referenced by VideoOutput::DoneDisplayingFrame(), and VideoOutputXv::DoneDisplayingFrame().

void VideoBuffers::DiscardFrame ( VideoFrame * frame )

Frame is ready to be reused by decoder.

Add frame to available list, remove from any other list.

Definition at line 402 of file videobuffers.cpp.

Referenced by VideoOutput::DiscardFrame(), VideoOutputXv::DiscardFrame(), DiscardFrames(), and GetNextFreeFrameInternal().

VideoFrame* VideoBuffers::at ( uint i ) [inline]

Definition at line 91 of file videobuffers.h.

Referenced by Clear(), ClearAfterSeek(), DirectfbData::DeleteBuffers(), DiscardFrames(), GetLastDecodedFrame(), GetLastShownFrame(), GetScratchFrame(), and Init().

VideoFrame * VideoBuffers::dequeue ( BufferType type )

Definition at line 472 of file videobuffers.cpp.

Referenced by VideoOutputXv::ProcessFrameXvMC(), requeue(), VideoOutputXv::ShowXvMC(), and VideoOutputXv::UpdatePauseFrame().

VideoFrame * VideoBuffers::head ( BufferType type )

Definition at line 484 of file videobuffers.cpp.

Referenced by VideoOutputXv::DoneDisplayingFrame(), VideoOutputXv::ProcessFrameXvMC(), VideoOutputXv::ShowXvMC(), VideoOutputXv::UpdatePauseFrame(), VideoOutputQuartz::UpdatePauseFrame(), VideoOutputNull::UpdatePauseFrame(), VideoOutputDX::UpdatePauseFrame(), VideoOutputDirectfb::UpdatePauseFrame(), and VideoOutputD3D::UpdatePauseFrame().

VideoFrame * VideoBuffers::tail ( BufferType type )

Definition at line 499 of file videobuffers.cpp.

Referenced by VideoOutputXv::UpdatePauseFrame().

void VideoBuffers::requeue	(	BufferType	dst,
		BufferType	src,
		int	num = `1`
	)

Definition at line 555 of file videobuffers.cpp.

void VideoBuffers::enqueue	(	BufferType	type,
		VideoFrame *	frame
	)

Definition at line 514 of file videobuffers.cpp.

Referenced by Init(), requeue(), and safeEnqueue().

void VideoBuffers::safeEnqueue	(	BufferType	dst,
		VideoFrame *	frame
	)

Definition at line 568 of file videobuffers.cpp.

Referenced by VideoOutputXv::CheckFrameStates(), VideoOutputXv::DiscardFrame(), DiscardFrame(), VideoOutputXv::DiscardFrames(), GetNextFreeFrameInternal(), VideoOutputXv::ShowXvMC(), and VideoOutputXv::UpdatePauseFrame().

void VideoBuffers::remove	(	BufferType	type,
		VideoFrame *	frame
	)

Definition at line 534 of file videobuffers.cpp.

frame_queue_t::iterator VideoBuffers::begin_lock ( BufferType type )

Definition at line 579 of file videobuffers.cpp.

Referenced by VideoOutputXv::CheckFrameStates(), VideoOutputXv::DiscardFrames(), VideoOutputXv::ProcessFrameXvMC(), VideoOutputXv::ShowXvMC(), VideoOutputXv::UpdatePauseFrame(), and VideoOutputNull::UpdatePauseFrame().

frame_queue_t::iterator VideoBuffers::end ( BufferType type )

Definition at line 589 of file videobuffers.cpp.

Referenced by VideoOutputXv::CheckFrameStates(), and VideoOutputXv::ProcessFrameXvMC().

void VideoBuffers::end_lock ( ) [inline]

Definition at line 101 of file videobuffers.h.

Referenced by VideoOutputXv::CheckFrameStates(), VideoOutputXv::DiscardFrames(), VideoOutputXv::ProcessFrameXvMC(), VideoOutputXv::ShowXvMC(), VideoOutputXv::UpdatePauseFrame(), and VideoOutputNull::UpdatePauseFrame().

uint VideoBuffers::size ( BufferType type ) const

Definition at line 603 of file videobuffers.cpp.

Referenced by VideoOutputXv::DoneDisplayingFrame(), VideoOutputXv::ProcessFrameXvMC(), VideoOutputXv::ShowXvMC(), VideoOutputXv::UpdatePauseFrame(), and VideoOutputNull::UpdatePauseFrame().

bool VideoBuffers::contains	(	BufferType	type,
		VideoFrame *	frame
	)			const

Definition at line 614 of file videobuffers.cpp.

Referenced by VideoOutputXv::CheckFrameStates().

VideoFrame * VideoBuffers::GetScratchFrame ( void )

Definition at line 625 of file videobuffers.cpp.

const VideoFrame * VideoBuffers::GetScratchFrame ( void ) const

Definition at line 637 of file videobuffers.cpp.

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

Definition at line 107 of file videobuffers.h.

Referenced by VideoOutput::GetLastDecodedFrame().

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

Definition at line 108 of file videobuffers.h.

Referenced by VideoOutput::GetLastShownFrame().

void VideoBuffers::SetLastShownFrameToScratch ( ) [inline]

Definition at line 109 of file videobuffers.h.

Referenced by VideoOutputXv::PrepareFrameOpenGL(), and VideoOutputXv::PrepareFrameXv().

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

Definition at line 110 of file videobuffers.h.

Referenced by VideoOutput::WaitForAvailable().

uint VideoBuffers::ValidVideoFrames ( void ) const [inline]

Definition at line 112 of file videobuffers.h.

Referenced by VideoOutput::ValidVideoFrames().

uint VideoBuffers::FreeVideoFrames ( void ) const [inline]

Definition at line 113 of file videobuffers.h.

Referenced by VideoOutput::FreeVideoFrames().

bool VideoBuffers::EnoughFreeFrames ( void ) const [inline]

Definition at line 114 of file videobuffers.h.

Referenced by ClearAfterSeek(), DoneDisplayingFrame(), VideoOutput::EnoughFreeFrames(), enqueue(), and GetNextFreeFrameInternal().

bool VideoBuffers::EnoughDecodedFrames ( void ) const [inline]

Definition at line 116 of file videobuffers.h.

Referenced by VideoOutput::EnoughDecodedFrames().

bool VideoBuffers::EnoughPrebufferedFrames ( void ) const [inline]

Definition at line 118 of file videobuffers.h.

Referenced by VideoOutput::EnoughPrebufferedFrames().

const VideoFrame* VideoBuffers::at ( uint i ) const [inline]

Definition at line 121 of file videobuffers.h.

const VideoFrame* VideoBuffers::GetLastDecodedFrame ( void ) const [inline]

Definition at line 122 of file videobuffers.h.

const VideoFrame* VideoBuffers::GetLastShownFrame ( void ) const [inline]

Definition at line 123 of file videobuffers.h.

uint VideoBuffers::size ( ) const [inline]

Definition at line 124 of file videobuffers.h.

Referenced by ClearAfterSeek(), CreateBuffers(), DiscardFrames(), EnoughDecodedFrames(), EnoughFreeFrames(), EnoughPrebufferedFrames(), FreeVideoFrames(), requeue(), SetLastShownFrameToScratch(), and ValidVideoFrames().

uint VideoBuffers::allocSize ( ) const [inline]

Definition at line 125 of file videobuffers.h.

Referenced by Clear(), VideoOutputXv::CreateBuffers(), DirectfbData::CreateBuffers(), CreateBuffers(), DirectfbData::DeleteBuffers(), DeleteBuffers(), and GetScratchFrame().

void VideoBuffers::LockFrame	(	const VideoFrame *	frame,
		const char *	owner
	)

void VideoBuffers::LockFrames	(	vector< const VideoFrame * > &	vec,
		const char *	owner
	)

Definition at line 792 of file videobuffers.cpp.

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

bool VideoBuffers::TryLockFrame	(	const VideoFrame *	frame,
		const char *	owner
	)

Definition at line 827 of file videobuffers.cpp.

Referenced by DiscardFrame(), GetNextFreeFrameInternal(), LockFrames(), VideoOutputXv::ProcessFrameXvMC(), VideoOutputXv::ShowXvMC(), VideoOutputXv::UpdatePauseFrame(), and VideoOutputNull::UpdatePauseFrame().

void VideoBuffers::UnlockFrame	(	const VideoFrame *	frame,
		const char *	owner
	)

void VideoBuffers::UnlockFrames	(	vector< const VideoFrame * > &	vec,
		const char *	owner
	)

Definition at line 888 of file videobuffers.cpp.

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

void VideoBuffers::AddInheritence ( const VideoFrame * frame )

Definition at line 903 of file videobuffers.cpp.

Referenced by VideoOutputXv::DrawSlice().

void VideoBuffers::RemoveInheritence ( const VideoFrame * frame )

Definition at line 954 of file videobuffers.cpp.

Referenced by VideoOutputXv::CheckFrameStates(), VideoOutputXv::DiscardFrame(), and DiscardFrames().

frame_queue_t VideoBuffers::Children ( const VideoFrame * frame )

Definition at line 991 of file videobuffers.cpp.

Referenced by VideoOutputXv::CheckFrameStates().

bool VideoBuffers::HasChildren ( const VideoFrame * frame )

Definition at line 1002 of file videobuffers.cpp.

Referenced by VideoOutputXv::CheckFrameStates(), VideoOutputXv::DiscardFrame(), and DiscardFrames().

void VideoBuffers::Clear	(	uint	i,
		int	fourcc
	)

Definition at line 1313 of file videobuffers.cpp.

Referenced by Clear(), CreateBuffers(), VideoOutputXv::InputChanged(), and VideoOutputNull::InputChanged().

void VideoBuffers::Clear ( int fourcc )

Definition at line 1318 of file videobuffers.cpp.

VideoFrame * VideoBuffers::PastFrame ( const VideoFrame * frame )

Definition at line 1030 of file videobuffers.cpp.

Referenced by AddInheritence(), and VideoOutputXv::DrawSlice().

VideoFrame * VideoBuffers::FutureFrame ( const VideoFrame * frame )

Definition at line 1041 of file videobuffers.cpp.

Referenced by AddInheritence(), and VideoOutputXv::DrawSlice().

VideoFrame * VideoBuffers::GetOSDFrame ( const VideoFrame * frame )

Definition at line 1052 of file videobuffers.cpp.

Referenced by VideoOutputXv::DiscardFrame(), VideoOutputXv::DoneDisplayingFrame(), VideoOutputXv::PrepareFrameXvMC(), VideoOutputXv::ProcessFrameXvMC(), and VideoOutputXv::ShowXvMC().

void VideoBuffers::SetOSDFrame	(	VideoFrame *	frame,
		VideoFrame *	osd
	)

Definition at line 1070 of file videobuffers.cpp.

Referenced by VideoOutputXv::DiscardFrame(), and VideoOutputXv::ProcessFrameXvMC().

VideoFrame * VideoBuffers::GetOSDParent ( const VideoFrame * osd )

Definition at line 1098 of file videobuffers.cpp.

Referenced by VideoOutputXv::DiscardFrame(), and VideoOutputXv::UpdatePauseFrame().

bool VideoBuffers::CreateBuffers	(	int	width,
		int	height,
		Display *	disp,
		void *	xvmc_ctx,
		void *	xvmc_surf_info,
		vector< void * >	surfs
	)

Definition at line 1161 of file videobuffers.cpp.

QString VideoBuffers::GetStatus ( int n = -1 ) const

Definition at line 1267 of file videobuffers.cpp.

Referenced by AddInheritence(), DiscardFrame(), VideoOutputXv::DiscardFrames(), DiscardFrames(), VideoOutput::GetFrameStatus(), GetNextFreeFrameInternal(), LockFrame(), LockFrames(), VideoOutputXv::ProcessFrameXvMC(), SetOSDFrame(), TryLockFrame(), UnlockFrame(), UnlockFrames(), and VideoOutputXv::UpdatePauseFrame().

frame_queue_t * VideoBuffers::queue ( BufferType type ) [private]

Definition at line 428 of file videobuffers.cpp.

Referenced by begin_lock(), contains(), dequeue(), end(), enqueue(), head(), size(), and tail().

const frame_queue_t * VideoBuffers::queue ( BufferType type ) const [private]

Definition at line 450 of file videobuffers.cpp.

VideoFrame * VideoBuffers::GetNextFreeFrameInternal	(	bool	with_lock,
		bool	allow_unsafe,
		BufferType	enqueue_to
	)			`[private]`

Definition at line 229 of file videobuffers.cpp.

Referenced by GetNextFreeFrame().

Member Data Documentation

frame_queue_t VideoBuffers::available [private]

Definition at line 161 of file videobuffers.h.

Referenced by begin_lock(), ClearAfterSeek(), DeLimboFrame(), DiscardFrames(), DoneDisplayingFrame(), end(), enqueue(), GetNextFreeFrameInternal(), GetStatus(), queue(), remove(), and Reset().

frame_queue_t VideoBuffers::used [private]

Definition at line 161 of file videobuffers.h.

Referenced by AddInheritence(), ClearAfterSeek(), DiscardFrames(), DoneDisplayingFrame(), GetNextFreeFrameInternal(), GetStatus(), queue(), ReleaseFrame(), remove(), Reset(), and StartDisplayingFrame().

frame_queue_t VideoBuffers::limbo [private]

Definition at line 161 of file videobuffers.h.

Referenced by AddInheritence(), DeLimboFrame(), DiscardFrames(), GetStatus(), queue(), ReleaseFrame(), remove(), and Reset().

frame_queue_t VideoBuffers::pause [private]

Definition at line 161 of file videobuffers.h.

Referenced by AddInheritence(), DiscardFrames(), GetStatus(), queue(), remove(), and Reset().

frame_queue_t VideoBuffers::displayed [private]

Definition at line 161 of file videobuffers.h.

Referenced by AddInheritence(), DiscardFrames(), GetStatus(), queue(), remove(), and Reset().

frame_queue_t VideoBuffers::decode [private]

Definition at line 161 of file videobuffers.h.

Referenced by DeLimboFrame(), DiscardFrames(), GetNextFreeFrameInternal(), GetStatus(), queue(), ReleaseFrame(), and remove().

vbuffer_map_t VideoBuffers::vbufferMap [private]

Definition at line 162 of file videobuffers.h.

Referenced by ClearAfterSeek(), Init(), ReleaseFrame(), Reset(), and StartDisplayingFrame().

frame_vector_t VideoBuffers::buffers [private]

Definition at line 163 of file videobuffers.h.

uchar_vector_t VideoBuffers::allocated_structs [private]

Definition at line 164 of file videobuffers.h.

Referenced by CreateBuffers(), and DeleteBuffers().

uchar_vector_t VideoBuffers::allocated_arrays [private]

Definition at line 165 of file videobuffers.h.

Referenced by CreateBuffers(), and DeleteBuffers().

frame_map_t VideoBuffers::parents [private]

Definition at line 166 of file videobuffers.h.

Referenced by AddInheritence(), RemoveInheritence(), and Reset().

frame_map_t VideoBuffers::children [private]

Definition at line 167 of file videobuffers.h.

Referenced by AddInheritence(), Children(), HasChildren(), RemoveInheritence(), and Reset().

QWaitCondition VideoBuffers::available_wait [private]

Definition at line 169 of file videobuffers.h.

Referenced by ClearAfterSeek(), DoneDisplayingFrame(), enqueue(), GetNextFreeFrameInternal(), and WaitForAvailable().

uint VideoBuffers::numbuffers [private]

Definition at line 171 of file videobuffers.h.

Referenced by GetStatus(), Init(), and size().

uint VideoBuffers::needfreeframes [private]

Definition at line 172 of file videobuffers.h.

Referenced by CreateBuffers(), EnoughFreeFrames(), and Init().

uint VideoBuffers::needprebufferframes [private]

Definition at line 173 of file videobuffers.h.

Referenced by EnoughDecodedFrames(), Init(), and SetPrebuffering().

uint VideoBuffers::needprebufferframes_normal [private]

Definition at line 174 of file videobuffers.h.

Referenced by CreateBuffers(), Init(), and SetPrebuffering().

uint VideoBuffers::needprebufferframes_small [private]

Definition at line 175 of file videobuffers.h.

Referenced by CreateBuffers(), Init(), and SetPrebuffering().

uint VideoBuffers::keepprebufferframes [private]

Definition at line 175 of file videobuffers.h.

Referenced by CreateBuffers(), EnoughPrebufferedFrames(), and Init().

bool VideoBuffers::need_extra_for_pause [private]

Definition at line 177 of file videobuffers.h.

Referenced by GetScratchFrame(), and Init().

uint VideoBuffers::rpos [private]

Definition at line 179 of file videobuffers.h.

Referenced by ClearAfterSeek(), GetLastShownFrame(), SetLastShownFrameToScratch(), and StartDisplayingFrame().

uint VideoBuffers::vpos [private]

Definition at line 180 of file videobuffers.h.

Referenced by ClearAfterSeek(), GetLastDecodedFrame(), and ReleaseFrame().

QMutex VideoBuffers::global_lock [mutable, private]

Definition at line 182 of file videobuffers.h.

Referenced by AddInheritence(), begin_lock(), Children(), ClearAfterSeek(), contains(), DeLimboFrame(), dequeue(), DiscardFrame(), DiscardFrames(), DoneDisplayingFrame(), end(), end_lock(), enqueue(), GetNextFreeFrameInternal(), GetOSDParent(), GetScratchFrame(), GetStatus(), HasChildren(), head(), Init(), queue(), ReleaseFrame(), remove(), RemoveInheritence(), requeue(), Reset(), safeEnqueue(), SetOSDFrame(), SetPrebuffering(), size(), StartDisplayingFrame(), and tail().

bool VideoBuffers::use_frame_locks [private]

Definition at line 184 of file videobuffers.h.

Referenced by Init(), LockFrame(), LockFrames(), TryLockFrame(), UnlockFrame(), and UnlockFrames().

QMutex VideoBuffers::frame_lock [private]

Definition at line 185 of file videobuffers.h.

Referenced by LockFrame(), TryLockFrame(), and UnlockFrame().

frame_lock_map_t VideoBuffers::frame_locks [private]

Definition at line 186 of file videobuffers.h.

Referenced by LockFrame(), TryLockFrame(), and UnlockFrame().

surf_to_frame_map_t VideoBuffers::xvmc_surf_to_frame [private]

Definition at line 189 of file videobuffers.h.

Referenced by CreateBuffers(), DeleteBuffers(), FutureFrame(), and PastFrame().

frame_to_frame_map_t VideoBuffers::xvmc_osd_parent [private]

Definition at line 190 of file videobuffers.h.

Referenced by GetOSDParent(), and SetOSDFrame().

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

VideoBuffers Class Reference

Detailed Description

Public Member Functions

Private Member Functions

Private Attributes

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation