gstreamermm 1.4.3

- Main Page
- Related Pages
- Modules
- Namespaces
- Classes

- Class List
- Class Index
- Class Hierarchy
- Class Members

Public Member Functions | Static Public Member Functions | Protected Member Functions | Related Functions | List of all members
Gst::Memory Class Reference

GstMemory is a lightweight refcounted object that wraps a region of memory. More...

Inheritance diagram for Gst::Memory:
[legend]
Collaboration diagram for Gst::Memory:
[legend]

## Public Member Functions
void | reference () const
| Increment the reference count for this object. More...
void | unreference () const
| Decrement the reference count for this object. More...
GstMemory* | gobj ()
| Provides access to the underlying C instance. More...
const GstMemory* | gobj () const
| Provides access to the underlying C instance. More...
GstMemory* | 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...
gsize | get_maxsize () const
gsize | get_align () const
gsize | get_offset () const
gsize | get_size () const
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 ()
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< MiniObject > | create_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...
QuarkData* | get_qdata (GQuark quark) const
| This function gets back user data pointers stored via set_qdata(). More...
QuarkData* | steal_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< Memory > | create (Gst::MemoryFlags flags, gpointer data, gsize maxsize, gsize offset, gsize size)

## Protected Member Functions
| Memory ()
void | operator delete (void*, std::size_t)
Protected Member Functions inherited from Gst::MiniObject
| MiniObject ()
void | operator delete (void*, std::size_t)

## Related Functions
(Note that these are not member functions.)
Glib::RefPtr< Gst::Memory > | wrap (GstMemory* object, bool take_copy=false)
| A Glib::wrap() method for this object. More...
Related Functions inherited from Gst::MiniObject
Glib::RefPtr< Gst::MiniObject > | wrap (GstMiniObject* object, bool take_copy=false)
| A Glib::wrap() method for this object. More...

## Additional Inherited Members
Public Types inherited from Gst::MiniObject
typedef sigc::slot< void > | SlotFinalizer

## Detailed Description

GstMemory is a lightweight refcounted object that wraps a region of memory.

They are typically used to manage the data of a #GstBuffer.

A GstMemory object has an allocated region of memory of maxsize. The maximum size does not change during the lifetime of the memory object. The memory also has an offset and size property that specifies the valid range of memory in the allocated region.

## Constructor & Destructor Documentation

Gst::Memory::Memory | ( |  | ) |
| protected

## Member Function Documentation

static Glib::RefPtr<Memory> Gst::Memory::create | ( | Gst::MemoryFlags | flags,
|  | gpointer | data,
|  | gsize | maxsize,
|  | gsize | offset,
|  | gsize | size
| ) |  |
| static

gsize Gst::Memory::get_align | ( |  | ) | const

gsize Gst::Memory::get_maxsize | ( |  | ) | const

gsize Gst::Memory::get_offset | ( |  | ) | const

gsize Gst::Memory::get_size | ( |  | ) | const

GstMemory* Gst::Memory::gobj | ( |  | ) |

Provides access to the underlying C instance.

const GstMemory* Gst::Memory::gobj | ( |  | ) | const

Provides access to the underlying C instance.

GstMemory* Gst::Memory::gobj_copy | ( |  | ) | const

Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.

void Gst::Memory::operator delete | ( | void * | ,
|  | std::size_t |
| ) |  |
| protected

void Gst::Memory::reference | ( |  | ) | const

Increment the reference count for this object.

You should never need to do this manually - use the object via a RefPtr instead.

void Gst::Memory::unreference | ( |  | ) | const

Decrement the reference count for this object.

You should never need to do this manually - use the object via a RefPtr instead.

## Friends And Related Function Documentation

Glib::RefPtr< Gst::Memory > wrap | ( | GstMemory * | object,
|  | bool | take_copy = `false`
| ) |  |
| related

A Glib::wrap() method for this object.

Parameters

  object | The C instance.
  take_copy | False if the result should take ownership of the C instance. True if it should take a new copy or ref.

Returns
  A C++ instance that wraps this C instance.

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

- gstreamermm/memory.h