gstreamermm  1.10.0
Public Member Functions | Static Public Member Functions | List of all members
Gst::EventBufferSize Class Reference

A buffer size event. More...

#include <gstreamermm/event.h>

Inheritance diagram for Gst::EventBufferSize:
Inheritance graph
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Public Member Functions

void parse (Format& format, gint64& minsize, gint64& maxsize, bool& async) const
 Get the format, minsize, maxsize and async-flag in the buffersize event. More...
 
gint64 parse_min_size () const
 Get the minsize in the buffersize event. More...
 
Gst::Format parse_format () const
 Get the format, in the buffersize event. More...
 
gint64 parse_max_size () const
 Get the maxsize in the buffersize event. More...
 
bool parse_async () const
 Get the async-flag in the buffersize event. More...
 
- Public Member Functions inherited from Gst::Event
void reference () const
 Increment the reference count for this object. More...
 
void unreference () const
 Decrement the reference count for this object. More...
 
GstEvent* gobj ()
 Provides access to the underlying C instance. More...
 
const GstEvent* gobj () const
 Provides access to the underlying C instance. More...
 
GstEvent* gobj_copy () const
 Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...
 
 Event ()=delete
 
 Event (const Event&)=delete
 
Eventoperator= (const Event&)=delete
 
Gst::Structure get_structure () const
 Access the structure of the event. More...
 
bool has_name (const Glib::ustring& name) const
 Checks if event has the given name. More...
 
guint32 get_seqnum () const
 Retrieve the sequence number of a event. More...
 
void set_seqnum (guint32 seqnum)
 Set the sequence number of a event. More...
 
gint64 get_running_time_offset () const
 Retrieve the accumulated running time offset of the event. More...
 
void set_running_time_offset (gint64 offset)
 Set the running time offset of a event. More...
 
Glib::RefPtr< Gst::Eventcopy () const
 Copy the event using the event specific copy function. More...
 
Glib::RefPtr< Gst::Eventcreate_writable ()
 Makes a writable event from the given event. More...
 
bool is_downstream () const
 Check if an event can travel downstream. More...
 
bool is_serialized () const
 Check if an event is serialized with the data stream. More...
 
bool is_upstream () const
 Check if an event can travel upstream. More...
 
EventType get_event_type () const
 Get the Gst::EventType of the event. More...
 
Gst::ClockTime get_timestamp () const
 Get the Gst::ClockTime timestamp of the event. More...
 
- Public Member Functions inherited from Gst::MiniObject
void reference () const
 Increment the reference count for this object. More...
 
void unreference () const
 Decrement the reference count for this object. More...
 
GstMiniObject* gobj ()
 Provides access to the underlying C instance. More...
 
const GstMiniObject* gobj () const
 Provides access to the underlying C instance. More...
 
GstMiniObject* gobj_copy () const
 Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...
 
 MiniObject ()=delete
 
 MiniObject (const MiniObject&)=delete
 
MiniObjectoperator= (const MiniObject&)=delete
 
 ~MiniObject ()
 
guint get_flags () const
 
void set_flags (const guint& value)
 
gint get_refcount () const
 
gint get_lockstate () const
 
bool lock (LockFlags flags)
 Lock the mini-object with the specified access mode in flags. More...
 
void unlock (LockFlags flags)
 Unlock the mini-object with the specified access mode in flags. More...
 
bool is_writable () const
 If mini_object has the LOCKABLE flag set, check if the current EXCLUSIVE lock on object is the only one, this means that changes to the object will not be visible to any other object. More...
 
Glib::RefPtr< MiniObjectcreate_writable ()
 Checks if a mini-object is writable. More...
 
void set_qdata (GQuark quark, QuarkData* data)
 This sets an opaque, named pointer on a miniobject. More...
 
QuarkDataget_qdata (GQuark quark) const
 This function gets back user data pointers stored via set_qdata(). More...
 
QuarkDatasteal_qdata (GQuark quark)
 This function gets back user data pointers stored via set_qdata() and removes the data from object without invoking its destroy() function (if any was set). More...
 
void add_finalize_notifier (const SlotFinalizer& slot)
 Adds notifier when mini object is finalized. More...
 
void remove_finalize_notifier ()
 Remove finalize notifier. More...
 

Static Public Member Functions

static Glib::RefPtr< Gst::EventBufferSizecreate (Format format, gint64 minsize, gint64 maxsize, bool async)
 Create a new buffersize event. More...
 

Additional Inherited Members

- Public Types inherited from Gst::MiniObject
typedef sigc::slot< void > SlotFinalizer
 
- Protected Member Functions inherited from Gst::Event
void operator delete (void*, std::size_t)
 
- Protected Member Functions inherited from Gst::MiniObject
void operator delete (void*, std::size_t)
 

Detailed Description

A buffer size event.

See create() for more details.

Member Function Documentation

◆ create()

static Glib::RefPtr<Gst::EventBufferSize> Gst::EventBufferSize::create ( Format  format,
gint64  minsize,
gint64  maxsize,
bool  async 
)
static

Create a new buffersize event.

The event is sent downstream and notifies elements that they should provide a buffer of the specified dimensions.

When the async flag is set, a thread boundary is preferred.

Parameters
formatBuffer format.
minsizeMinimum buffer size.
maxsizeMaximum buffer size.
asyncThread behavior.
Returns
A new Gst::Event.

◆ parse()

void Gst::EventBufferSize::parse ( Format format,
gint64 &  minsize,
gint64 &  maxsize,
bool &  async 
) const

Get the format, minsize, maxsize and async-flag in the buffersize event.

Parameters
formatA reference to store the format in.
minsizeA reference to store the minsize in.
maxsizeA reference to store the maxsize in.
asyncA reference to store the async-flag in.

◆ parse_async()

bool Gst::EventBufferSize::parse_async ( ) const

Get the async-flag in the buffersize event.

Returns
The async flag.

◆ parse_format()

Gst::Format Gst::EventBufferSize::parse_format ( ) const

Get the format, in the buffersize event.

Returns
The format.

◆ parse_max_size()

gint64 Gst::EventBufferSize::parse_max_size ( ) const

Get the maxsize in the buffersize event.

Returns
The maximum size.

◆ parse_min_size()

gint64 Gst::EventBufferSize::parse_min_size ( ) const

Get the minsize in the buffersize event.

Returns
The mininum size.