GstVulkan.VulkanImageBufferPool¶

Subclasses:: None

Methods¶

Inherited:: Gst.BufferPool (19), Gst.Object (27), GObject.Object (37)
Structs:: GObject.ObjectClass (5)

class	`config_get_allocation_params` (config)
class	`config_set_allocation_params` (config, usage, mem_properties, initial_layout, initial_access)
class	`config_set_decode_caps` (config, caps)
class	`config_set_encode_caps` (config, caps)
class	`new` (device)

Virtual Methods¶

Inherited:: Gst.BufferPool (11), 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
bufferpool	`Gst.BufferPool`	r	parent `Gst.BufferPool`
device	`GstVulkan.VulkanDevice`	r	the `GstVulkan.VulkanDevice` to allocate images from

Class Details¶

class GstVulkan.VulkanImageBufferPool(**kwargs)¶

Bases:: Gst.BufferPool
Abstract:: No
Structure:: GstVulkan.VulkanImageBufferPoolClass

New in version 1.18.

classmethod config_get_allocation_params(config)¶

Parameters:

config (Gst.Structure) – the Gst.Structure with the pool’s configuration.

Returns:

usage:: The Vulkan image usage flags.
mem_props:: Vulkan memory property flags.
initial_layout:: Initial Vulkan image layout.
initial_access:: Initial Vulkan access flags.

Return type:

(usage: Vulkan.ImageUsageFlags, mem_props: Vulkan.MemoryPropertyFlags, initial_layout: Vulkan.ImageLayout, initial_access: int)

Gets the configuration of the Vulkan image buffer pool.

New in version 1.26.

classmethod config_set_allocation_params(config, usage, mem_properties, initial_layout, initial_access)¶

Parameters:

config (Gst.Structure) – the Gst.Structure with the pool’s configuration.
usage (Vulkan.ImageUsageFlags) – The Vulkan image usage flags.
mem_properties (Vulkan.MemoryPropertyFlags) – Vulkan memory property flags.
initial_layout (Vulkan.ImageLayout) – Initial Vulkan image layout.
initial_access (int) – Access flags for the layout transition if initial_layout is not VK_IMAGE_LAYOUT_UNDEFINED or VK_IMAGE_LAYOUT_PREINITIALIZED.

Sets the usage and mem_properties, initial_layout and initial_access of the images to setup.

If initial_access is VK_IMAGE_LAYOUT_UNDEFINED or VK_IMAGE_LAYOUT_PREINITIALIZED, the image crated by this pool has not been initialized to a particular layout

New in version 1.24.

classmethod config_set_decode_caps(config, caps)¶

Parameters:

config (Gst.Structure) – the Gst.Structure with the pool’s configuration.
caps (Gst.Caps) – Upstream decode caps.

Decode caps are used when the buffers are going to be used either as decoded dest or DPB images.

New in version 1.24.

classmethod config_set_encode_caps(config, caps)¶

Parameters:

config (Gst.Structure) – the Gst.Structure with the pool’s configuration.
caps (Gst.Caps) – Upstream encode caps.

Encode caps are used when the buffers are going to be used either as encoded src or DPB images.

New in version 1.26.

classmethod new(device)¶

Parameters:: device (GstVulkan.VulkanDevice) – the GstVulkan.VulkanDevice to use
Returns:: a Gst.BufferPool that allocates buffers with #GstGLMemory
Return type:: Gst.BufferPool

New in version 1.18.