GstGL.GLBaseMemory

Fields

Name	Type	Access	Description
alloc_data	object	r
alloc_size	int	r
context	GstGL.GLContext	r/w	the GstGL.GLContext to use for GL operations
data	object	r/w
gl_map_count	int	r/w
lock	GLib.Mutex	r/w
map_count	int	r/w
map_flags	Gst.MapFlags	r/w
mem	Gst.Memory	r/w	the parent object
notify	GLib.DestroyNotify	r
query	GstGL.GLQuery	r/w
user_data	object	r

Methods

class	alloc (allocator, params)
class	init_once ()
	init (allocator, parent, context, params, size, user_data, notify)
	memcpy (dest, offset, size)

Details

class GstGL.GLBaseMemory

GstGL.GLBaseMemory is a Gst.Memory subclass providing the basis of support for the mapping of GL buffers.

Data is uploaded or downloaded from the GPU as is necessary.

classmethod alloc(allocator, params)

Parameters:

• allocator (GstGL.GLBaseMemoryAllocator) – a GstGL.GLBaseMemoryAllocator

• params (GstGL.GLAllocationParams) – the GstGL.GLAllocationParams to allocate the memory with

Returns:

a new GstGL.GLBaseMemory from allocator with the requested params.

Return type:

GstGL.GLBaseMemory or None

New in version 1.8.

classmethod init_once()

Initializes the GL Base Memory allocator. It is safe to call this function multiple times. This must be called before any other GstGL.GLBaseMemory operation.

New in version 1.8.

init(allocator, parent, context, params, size, user_data, notify)

Parameters:

• allocator (Gst.Allocator) – the Gst.Allocator to initialize with

• parent (Gst.Memory or None) – the parent Gst.Memory to initialize with

• context (GstGL.GLContext) – the GstGL.GLContext to initialize with

• params (Gst.AllocationParams or None) – the GstAllocationParams to initialize with

• size (int) – the number of bytes to be allocated

• user_data (object or None) – user data to call notify with

• notify (GLib.DestroyNotify or None) – a GLib.DestroyNotify

Initializes self with the required parameters

New in version 1.8.

memcpy(dest, offset, size)

Parameters:

• dest (GstGL.GLBaseMemory) – the destination GstGL.GLBaseMemory

• offset (int) – the offset to start at

• size (int) – the number of bytes to copy

Returns:

whether the copy succeeded.

Return type:

bool

New in version 1.8.