GstVulkan.VulkanImageMemory

Fields

Name	Type	Access	Description
barrier	GstVulkan.VulkanBarrierImageInfo	r/w	last set barrier for image
create_info	Vulkan.ImageCreateInfo	r/w	creation information for image
device	GstVulkan.VulkanDevice	r/w	the GstVulkan.VulkanDevice to allocate images from
format_properties	Vulkan.ImageFormatProperties	r/w	format properties
image	Vulkan.Image	r/w	the Vulkan image handle
lock	GLib.Mutex	r
notify	GLib.DestroyNotify	r
outstanding_views	[object]	r
parent	Gst.Memory	r/w	parent Gst.Memory
requirements	Vulkan.MemoryRequirements	r/w	memory requirements for image
usage	Vulkan.ImageUsageFlags	r/w	intended usage for image
user_data	object	r
views	[object]	r
vk_mem	GstVulkan.VulkanMemory	r/w	the backing GstVulkan.VulkanMemory for image
wrapped	bool	r

Methods

class	alloc (device, format, width, height, tiling, usage, mem_prop_flags)
class	alloc_with_image_info (device, image_info, mem_prop_flags)
class	init_once ()
	add_view (view)
	find_view (find_func, *user_data)
	get_height ()
	get_width ()
	init (allocator, parent, device, format, usage, initial_layout, params, size, user_data, notify)

Details

class GstVulkan.VulkanImageMemory

New in version 1.18.

classmethod alloc(device, format, width, height, tiling, usage, mem_prop_flags)

Parameters:

• device (GstVulkan.VulkanDevice) – a GstVulkan.VulkanDevice

• format (Vulkan.Format) – the Vulkan.Format for the new image

• width (int) – width for the new image

• height (int) – height for the new image

• tiling (Vulkan.ImageTiling) – tiling for the new image

• usage (Vulkan.ImageUsageFlags) – usage flags for the new image

• mem_prop_flags (Vulkan.MemoryPropertyFlags) – Vulkan.DeviceMemory property flags for the new image

Returns:

a Gst.Memory object backed by a vulkan device memory

Return type:

Gst.Memory

Allocated a new GstVulkan.VulkanImageMemory.

New in version 1.18.

classmethod alloc_with_image_info(device, image_info, mem_prop_flags)

Parameters:

• device (GstVulkan.VulkanDevice) – a GstVulkan.VulkanDevice

• image_info (Vulkan.ImageCreateInfo) – Vulkan.ImageCreateInfo structure

• mem_prop_flags (Vulkan.MemoryPropertyFlags) – Vulkan.MemoryPropertyFlags flags

Returns:

a Gst.Memory object backed by a vulkan device memory

Return type:

Gst.Memory

New in version 1.24.

classmethod init_once()

Initializes the Vulkan image memory allocator. It is safe to call this function multiple times. This must be called before any other GstVulkan.VulkanImageMemory operation.

New in version 1.18.

add_view(view)

Parameters:

view (GstVulkan.VulkanImageView) – a GstVulkan.VulkanImageView

New in version 1.18.

find_view(find_func, *user_data)

Parameters:

• find_func (GstVulkan.VulkanImageMemoryFindViewFunc) – GstVulkan.VulkanImageMemoryFindViewFunc to search with

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

Returns:

the first GstVulkan.VulkanImageView that find_func returns True for, or None

Return type:

GstVulkan.VulkanImageView or None

New in version 1.18.

get_height()

Returns:

the height of self

Return type:

int

New in version 1.18.

get_width()

Returns:

the width of self

Return type:

int

New in version 1.18.

init(allocator, parent, device, format, usage, initial_layout, params, size, user_data, notify)

Parameters:

• allocator (Gst.Allocator) –

• parent (Gst.Memory) –

• device (GstVulkan.VulkanDevice) –

• format (Vulkan.Format) –

• usage (Vulkan.ImageUsageFlags) –

• initial_layout (Vulkan.ImageLayout) –

• params (Gst.AllocationParams) –

• size (int) –

• user_data (object or None) –

• notify (GLib.DestroyNotify) –

Return type:

bool