GstAllocators.FdAllocator

Subclasses:

GstAllocators.DmaBufAllocator, GstAllocators.ShmAllocator

Methods

Inherited:

Gst.Allocator (5), Gst.Object (27), GObject.Object (37)

Structs:

GObject.ObjectClass (5)

class	alloc (allocator, fd, size, flags)
class	new ()

Virtual Methods

Inherited:

Gst.Allocator (2), Gst.Object (1), GObject.Object (7)

Properties

Inherited:

Gst.Object (2)

Signals

Inherited:

Gst.Object (1), GObject.Object (1)

Fields

Inherited:

Gst.Object (1), GObject.Object (1)

Name	Type	Access	Description
parent	Gst.Allocator	r

Class Details

class GstAllocators.FdAllocator(**kwargs)

Bases:

Gst.Allocator

Abstract:

No

Structure:

GstAllocators.FdAllocatorClass

Base class for allocators with fd-backed memory

New in version 1.6.

classmethod alloc(allocator, fd, size, flags)

Parameters:

• allocator (Gst.Allocator) – allocator to be used for this memory

• fd (int) – file descriptor

• size (int) – memory size

• flags (GstAllocators.FdMemoryFlags) – extra GstAllocators.FdMemoryFlags

Returns:

a Gst.Memory based on allocator. When the buffer will be released the allocator will close the fd unless the GstAllocators.FdMemoryFlags.DONT_CLOSE flag is specified. The memory is only mmapped on Gst.Buffer.map() request.

Return type:

Gst.Memory or None

Return a Gst.Memory that wraps a generic file descriptor.

New in version 1.6.

classmethod new()

Returns:

a new fd allocator. Use Gst.Object.unref() to release the allocator after usage

Return type:

Gst.Allocator

Return a new fd allocator.

New in version 1.6.