Inheritance diagram for FfmpegVideoCursor:

Classes
class	FfmpegBuffer

Public Member Functions
	FfmpegVideoCursor (FfmpegVideo *src)

virtual void	finalize (BamReader *manager)
	Called by the BamReader to perform any final actions needed for setting up the object after all objects have been read and all pointers have been completed. More...

virtual TypeHandle	force_init_type ()

int	get_max_readahead_frames () const
	Returns the maximum number of frames that a sub-thread will attempt to read ahead of the current frame. More...

ThreadPriority	get_thread_priority () const
	Returns the current thread priority of the thread that decodes the ffmpeg video stream (if max_readahead_frames is nonzero). More...

virtual TypeHandle	get_type () const

bool	is_thread_started () const
	Returns true if the thread has been started, false if not. More...

virtual	PT (Buffer) fetch_buffer()

void	set_max_readahead_frames (int max_readahead_frames)
	Specifies the maximum number of frames that a sub-thread will attempt to read ahead of the current frame. More...

void	set_thread_priority (ThreadPriority thread_priority)
	Changes the thread priority of the thread that decodes the ffmpeg video stream (if max_readahead_frames is nonzero). More...

virtual bool	set_time (double timestamp, int loop_count)
	See MovieVideoCursor::set_time(). More...

void	start_thread ()
	Explicitly starts the ffmpeg decoding thread after it has been stopped by a call to stop_thread(). More...

void	stop_thread ()
	Explicitly stops the ffmpeg decoding thread. More...

virtual void	write_datagram (BamWriter *manager, Datagram &dg)
	Writes the contents of this object to the datagram for shipping out to a Bam file. More...

Public Member Functions inherited from MovieVideoCursor
bool	aborted () const

virtual void	apply_to_texture (const Buffer buffer, Texture t, int page)
	Stores this buffer's contents in the indicated texture. More...

virtual void	apply_to_texture_alpha (const Buffer buffer, Texture t, int page, int alpha_src)
	Copies this buffer's contents into the alpha channel of the supplied texture. More...

virtual void	apply_to_texture_rgb (const Buffer buffer, Texture t, int page)
	Copies this buffer's contents into the RGB channels of the supplied texture. More...

bool	can_seek () const

bool	can_seek_fast () const

virtual int	complete_pointers (TypedWritable *plist, BamReader manager)
	Receives an array of pointers, one for each time manager->read_pointer() was called in fillin(). More...

int	get_num_components () const

double	length () const

	PT (MovieVideo) get_source() const

bool	ready () const

void	setup_texture (Texture *tex) const
	Set up the specified Texture object to contain content from this movie. More...

int	size_x () const

int	size_y () const

bool	streaming () const

Public Member Functions inherited from TypedWritableReferenceCount
	TypedWritableReferenceCount (const TypedWritableReferenceCount &copy)

virtual ReferenceCount *	as_reference_count ()
	Returns the pointer cast to a ReferenceCount pointer, if it is in fact of that type. More...

void	operator= (const TypedWritableReferenceCount &copy)

Public Member Functions inherited from TypedWritable
	TypedWritable (const TypedWritable &copy)

vector_uchar	encode_to_bam_stream () const
	Converts the TypedWritable object into a single stream of data using a BamWriter, and returns that data as a bytes object. More...

bool	encode_to_bam_stream (vector_uchar &data, BamWriter *writer=nullptr) const
	Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string. More...

UpdateSeq	get_bam_modified () const
	Returns the current bam_modified counter. More...

void	mark_bam_modified ()
	Increments the bam_modified counter, so that this object will be invalidated and retransmitted on any open bam streams. More...

void	operator= (const TypedWritable &copy)

virtual bool	require_fully_complete () const
	Some objects require all of their nested pointers to have been completed before the objects themselves can be completed. More...

virtual void	update_bam_nested (BamWriter *manager)
	Called by the BamWriter when this object has not itself been modified recently, but it should check its nested objects for updates. More...

Public Member Functions inherited from TypedObject
	TypedObject (const TypedObject &copy)=default

TypedObject *	as_typed_object ()
	Returns the object, upcast (if necessary) to a TypedObject pointer. More...

const TypedObject *	as_typed_object () const
	Returns the object, upcast (if necessary) to a TypedObject pointer. More...

int	get_best_parent_from_Set (const std::set< int > &) const

int	get_type_index () const
	Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More...

bool	is_exact_type (TypeHandle handle) const
	Returns true if the current object is the indicated type exactly. More...

bool	is_of_type (TypeHandle handle) const
	Returns true if the current object is or derives from the indicated type. More...

TypedObject &	operator= (const TypedObject &copy)=default

Public Member Functions inherited from ReferenceCount
int	get_ref_count () const

WeakReferenceList *	get_weak_list () const
	Returns the WeakReferenceList associated with this ReferenceCount object. More...

bool	has_weak_list () const
	Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise. More...

void	local_object ()
	This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack. More...

void	ref () const
	Explicitly increments the reference count. More...

bool	ref_if_nonzero () const
	Atomically increases the reference count of this object if it is not zero. More...

bool	test_ref_count_integrity () const
	Does some easy checks to make sure that the reference count isn't completely bogus. More...

bool	test_ref_count_nonzero () const
	Does some easy checks to make sure that the reference count isn't zero, or completely bogus. More...

virtual bool	unref () const
	Explicitly decrements the reference count. More...

WeakReferenceList *	weak_ref ()
	Adds the indicated PointerToVoid as a weak reference to this object. More...

void	weak_unref ()
	Removes the indicated PointerToVoid as a weak reference to this object. More...

Static Public Member Functions
static TypeHandle	get_class_type ()

static void	init_type ()

static void	register_with_read_factory ()
	Tells the BamReader how to create objects of type FfmpegVideo. More...

Static Public Member Functions inherited from MovieVideoCursor
static TypeHandle	get_class_type ()

static void	init_type ()

Static Public Member Functions inherited from TypedWritableReferenceCount
static TypeHandle	get_class_type ()

static void	init_type ()

static	PT (TypedWritableReferenceCount) decode_from_bam_stream(vector_uchar data

Static Public Member Functions inherited from TypedWritable
static bool	decode_raw_from_bam_stream (TypedWritable &ptr, ReferenceCount &ref_ptr, vector_uchar data, BamReader *reader=nullptr)
	Reads the bytes created by a previous call to encode_to_bam_stream(), and extracts the single object on those bytes. More...

static TypeHandle	get_class_type ()

static void	init_type ()

Static Public Member Functions inherited from TypedObject
static TypeHandle	get_class_type ()

static void	init_type ()
	This function is declared non-inline to work around a compiler bug in g++ 2.96. More...

Static Public Member Functions inherited from ReferenceCount
static TypeHandle	get_class_type ()

static void	init_type ()

Friends
class	FfmpegVideo

Additional Inherited Members
Public Attributes inherited from TypedWritableReferenceCount
static BamReader *	reader = nullptr)

Public Attributes inherited from TypedObject
	get_type

Public Attributes inherited from ReferenceCount
	get_ref_count
	Returns the current reference count. More...

Static Public Attributes inherited from TypedWritable
static TypedWritable *const	Null = nullptr

Detailed Description

Definition at line 40 of file ffmpegVideoCursor.h.

Member Function Documentation

◆ finalize()

void FfmpegVideoCursor::finalize ( BamReader * manager )

virtual

Called by the BamReader to perform any final actions needed for setting up the object after all objects have been read and all pointers have been completed.

Reimplemented from TypedWritable.

Definition at line 1211 of file ffmpegVideoCursor.cxx.

◆ get_max_readahead_frames()

int FfmpegVideoCursor::get_max_readahead_frames ( ) const

Returns the maximum number of frames that a sub-thread will attempt to read ahead of the current frame.

See set_max_readahead_frames().

Definition at line 218 of file ffmpegVideoCursor.cxx.

◆ get_thread_priority()

ThreadPriority FfmpegVideoCursor::get_thread_priority ( ) const

Returns the current thread priority of the thread that decodes the ffmpeg video stream (if max_readahead_frames is nonzero).

See set_thread_priority().

Definition at line 246 of file ffmpegVideoCursor.cxx.

◆ is_thread_started()

bool FfmpegVideoCursor::is_thread_started ( ) const

Returns true if the thread has been started, false if not.

This will always return false if max_readahead_frames is 0.

Definition at line 315 of file ffmpegVideoCursor.cxx.

Referenced by set_thread_priority().

◆ register_with_read_factory()

void FfmpegVideoCursor::register_with_read_factory ( )

static

Tells the BamReader how to create objects of type FfmpegVideo.

Definition at line 1189 of file ffmpegVideoCursor.cxx.

References BamReader::get_factory(), and Factory< Type >::register_factory().

Referenced by init_libffmpeg().

◆ set_max_readahead_frames()

void FfmpegVideoCursor::set_max_readahead_frames ( int max_readahead_frames )

Specifies the maximum number of frames that a sub-thread will attempt to read ahead of the current frame.

Setting this to a nonzero allows the video decoding to take place in a sub-thread, which smoothes out the video decoding time by spreading it evenly over several frames. Set this number larger to increase the buffer between the currently visible frame and the first undecoded frame; set it smaller to reduce memory consumption.

Setting this to zero forces the video to be decoded in the main thread. If threading is not available in the Panda build, this value is always zero.

Definition at line 191 of file ffmpegVideoCursor.cxx.

References start_thread(), and stop_thread().

◆ set_thread_priority()

void FfmpegVideoCursor::set_thread_priority ( ThreadPriority thread_priority )

Changes the thread priority of the thread that decodes the ffmpeg video stream (if max_readahead_frames is nonzero).

Normally you shouldn't mess with this, but there may be special cases where a precise balance of CPU utilization between the main thread and the various ffmpeg service threads may be needed.

Definition at line 230 of file ffmpegVideoCursor.cxx.

References is_thread_started(), start_thread(), and stop_thread().

◆ set_time()

bool FfmpegVideoCursor::set_time	(	double	timestamp,
		int	loop_count
	)

virtual

See MovieVideoCursor::set_time().

Reimplemented from MovieVideoCursor.

Definition at line 323 of file ffmpegVideoCursor.cxx.

◆ start_thread()

void FfmpegVideoCursor::start_thread ( )

Explicitly starts the ffmpeg decoding thread after it has been stopped by a call to stop_thread().

The thread is normally started automatically, so there is no need to call this method unless you have previously called stop_thread() for some reason.

Definition at line 257 of file ffmpegVideoCursor.cxx.

References Filename::get_basename().

Referenced by set_max_readahead_frames(), and set_thread_priority().

◆ stop_thread()

void FfmpegVideoCursor::stop_thread ( )

Explicitly stops the ffmpeg decoding thread.

There is normally no reason to do this unless you want to maintain precise control over what threads are consuming CPU resources. Calling this method will make the video update in the main thread, regardless of the setting of max_readahead_frames, until you call start_thread() again.

Definition at line 285 of file ffmpegVideoCursor.cxx.

References ConditionVarDirect::notify().

Referenced by set_max_readahead_frames(), and set_thread_priority().