GstVulkan.VulkanHandle¶

Fields¶

Name	Type	Access	Description
device	`GstVulkan.VulkanDevice`	r/w	the `GstVulkan.VulkanDevice` for this handle
handle	`int`	r/w	the handle value
notify	`GstVulkan.VulkanHandleDestroyNotify`	r/w
parent	`Gst.MiniObject`	r/w	the parent `Gst.MiniObject`
type	`GstVulkan.VulkanHandleType`	r/w	the type of handle
user_data	`object`	r/w

Methods¶

class	`context_query` (element, query, display, instance, device)
class	`new_wrapped` (device, type, handle, notify, *user_data)
class	`set_context` (element, context, display, instance)
	`free_descriptor_set_layout` (user_data)
	`free_framebuffer` (user_data)
	`free_pipeline` (user_data)
	`free_pipeline_layout` (user_data)
	`free_render_pass` (user_data)
	`free_sampler` (user_data)
	`free_shader` (user_data)

Details¶

class GstVulkan.VulkanHandle¶

Holds information about a vulkan non dispatchable handle that only has a vulkan device as a parent and no specific host synchronisation requirements. Command buffers have extra requirements that are serviced by more specific implementations (GstVulkan.VulkanCommandBuffer, GstVulkan.VulkanCommandPool).

New in version 1.18.

classmethod context_query(element, query, display, instance, device)¶

Parameters:

element (Gst.Element) – a Gst.Element
query (Gst.Query) – a Gst.Query of type Gst.QueryType.CONTEXT
display (GstVulkan.VulkanDisplay or None) – a GstVulkan.VulkanDisplay
instance (GstVulkan.VulkanInstance or None) – a GstVulkan.VulkanInstance
device (GstVulkan.VulkanDevice or None) – a GstVulkan.VulkanInstance

Returns:

Whether the query was successfully responded to from the passed display, instance, and device.

Return type:

bool

New in version 1.18.

classmethod new_wrapped(device, type, handle, notify, *user_data)¶

Parameters:

device (GstVulkan.VulkanDevice) –
type (GstVulkan.VulkanHandleType) –
handle (int) – a Vulkan handle
notify (GstVulkan.VulkanHandleDestroyNotify) – a GLib.DestroyNotify
user_data (object or None) – data to pass to notify

Returns:

a new GstVulkan.VulkanHandle wrapping handle

Return type:

GstVulkan.VulkanHandle

New in version 1.18.

classmethod set_context(element, context, display, instance)¶

Parameters:

element (Gst.Element) – a Gst.Element
context (Gst.Context) – a Gst.Context
display (GstVulkan.VulkanDisplay) – location of a GstVulkan.VulkanDisplay
instance (GstVulkan.VulkanInstance) – location of a GstVulkan.VulkanInstance

Returns:

whether the display or instance could be set successfully

display:: location of a GstVulkan.VulkanDisplay
instance:: location of a GstVulkan.VulkanInstance

Return type:

(bool, display: GstVulkan.VulkanDisplay, instance: GstVulkan.VulkanInstance)

Helper function for implementing Gst.Element.do_set_context() in Vulkan capable elements.

Retrieve’s the GstVulkan.VulkanDisplay or GstVulkan.VulkanInstance in context and places the result in display or instance respectively.

New in version 1.18.

free_descriptor_set_layout(user_data)¶

Parameters:: user_data (object or None) – callback user data

Frees the descriptor set layout in self

New in version 1.18.

free_framebuffer(user_data)¶

Parameters:: user_data (object or None) – callback user data

Frees the framebuffer in self

New in version 1.18.

free_pipeline(user_data)¶

Parameters:: user_data (object or None) – callback user data

Frees the pipeline in self

New in version 1.18.

free_pipeline_layout(user_data)¶

Parameters:: user_data (object or None) – callback user data

Frees the pipeline layout in self

New in version 1.18.

free_render_pass(user_data)¶

Parameters:: user_data (object or None) – callback user data

Frees the render pass in self

New in version 1.18.

free_sampler(user_data)¶

Parameters:: user_data (object or None) – callback user data

Frees the sampler in self

New in version 1.18.

free_shader(user_data)¶

Parameters:: user_data (object or None) – callback user data

Frees the shader in self

New in version 1.18.