Vulkan Utils

Functions

gst_vulkan_create_shader

GstVulkanHandle *
gst_vulkan_create_shader (GstVulkanDevice * device,
                          gchar * code,
                          gsize size,
                          GError ** error)

Parameters:

device

a GstVulkanDevice

code

the SPIR-V shader byte code

size

length of code. Must be a multiple of 4

error

a GError to fill on failure

Returns ( [transfer: full] ) –

a GstVulkanHandle for image matching the original layout and format of image or NULL

Since : 1.18


GstVulkan.prototype.vulkan_create_shader

function GstVulkan.prototype.vulkan_create_shader(device: GstVulkan.VulkanDevice, code: String, size: Number): {
    // javascript wrapper for 'gst_vulkan_create_shader'
}

Parameters:

code ( String ) –

the SPIR-V shader byte code

size ( Number ) –

length of code. Must be a multiple of 4

Returns ( GstVulkan.VulkanHandle ) –

a GstVulkan.VulkanHandle for image matching the original layout and format of image or null

Since : 1.18


GstVulkan.vulkan_create_shader

@raises(GLib.GError)
def GstVulkan.vulkan_create_shader (device, code, size):
    #python wrapper for 'gst_vulkan_create_shader'

Parameters:

code ( str ) –

the SPIR-V shader byte code

size ( int ) –

length of code. Must be a multiple of 4

Returns ( GstVulkan.VulkanHandle ) –

a GstVulkan.VulkanHandle for image matching the original layout and format of image or None

Since : 1.18


gst_vulkan_ensure_element_data

gboolean
gst_vulkan_ensure_element_data (GstElement * element,
                                GstVulkanDisplay ** display_ptr,
                                GstVulkanInstance ** instance_ptr)

Perform the steps necessary for retrieving a GstVulkanInstance and (optionally) an GstVulkanDisplay from the surrounding elements or from the application using the GstContext mechanism.

If the contents of display_ptr or instance_ptr are not NULL, then no GstContext query is necessary and no GstVulkanInstance or GstVulkanDisplay retrieval is performed.

Parameters:

element

a GstElement

display_ptr ( [inout][optional] ) –

the resulting GstVulkanDisplay

instance_ptr ( [inout] ) –

the resulting GstVulkanInstance

Returns

whether a GstVulkanInstance exists in instance_ptr and if display_ptr is not NULL, whether a GstVulkanDisplay exists in display_ptr

Since : 1.18


GstVulkan.prototype.vulkan_ensure_element_data

function GstVulkan.prototype.vulkan_ensure_element_data(element: Gst.Element, display_ptr: GstVulkan.VulkanDisplay, instance_ptr: GstVulkan.VulkanInstance): {
    // javascript wrapper for 'gst_vulkan_ensure_element_data'
}

Perform the steps necessary for retrieving a GstVulkan.VulkanInstance and (optionally) an GstVulkan.VulkanDisplay from the surrounding elements or from the application using the Gst.Context mechanism.

If the contents of display_ptr or instance_ptr are not null, then no Gst.Context query is necessary and no GstVulkan.VulkanInstance or GstVulkan.VulkanDisplay retrieval is performed.

Parameters:

element ( Gst.Element ) –

a Gst.Element

display_ptr ( GstVulkan.VulkanDisplay ) –

the resulting GstVulkan.VulkanDisplay

instance_ptr ( GstVulkan.VulkanInstance ) –

the resulting GstVulkan.VulkanInstance

Returns a tuple made of:

( Number ) –

whether a GstVulkan.VulkanInstance exists in instance_ptr and if display_ptr is not null, whether a GstVulkan.VulkanDisplay exists in display_ptr

display_ptr ( GstVulkan.VulkanDisplay ) –

whether a GstVulkan.VulkanInstance exists in instance_ptr and if display_ptr is not null, whether a GstVulkan.VulkanDisplay exists in display_ptr

instance_ptr ( GstVulkan.VulkanInstance ) –

whether a GstVulkan.VulkanInstance exists in instance_ptr and if display_ptr is not null, whether a GstVulkan.VulkanDisplay exists in display_ptr

Since : 1.18


GstVulkan.vulkan_ensure_element_data

def GstVulkan.vulkan_ensure_element_data (element, display_ptr, instance_ptr):
    #python wrapper for 'gst_vulkan_ensure_element_data'

Perform the steps necessary for retrieving a GstVulkan.VulkanInstance and (optionally) an GstVulkan.VulkanDisplay from the surrounding elements or from the application using the Gst.Context mechanism.

If the contents of display_ptr or instance_ptr are not None, then no Gst.Context query is necessary and no GstVulkan.VulkanInstance or GstVulkan.VulkanDisplay retrieval is performed.

Parameters:

element ( Gst.Element ) –

a Gst.Element

display_ptr ( GstVulkan.VulkanDisplay ) –

the resulting GstVulkan.VulkanDisplay

instance_ptr ( GstVulkan.VulkanInstance ) –

the resulting GstVulkan.VulkanInstance

Returns a tuple made of:

( bool ) –

whether a GstVulkan.VulkanInstance exists in instance_ptr and if display_ptr is not None, whether a GstVulkan.VulkanDisplay exists in display_ptr

display_ptr ( GstVulkan.VulkanDisplay ) –

whether a GstVulkan.VulkanInstance exists in instance_ptr and if display_ptr is not None, whether a GstVulkan.VulkanDisplay exists in display_ptr

instance_ptr ( GstVulkan.VulkanInstance ) –

whether a GstVulkan.VulkanInstance exists in instance_ptr and if display_ptr is not None, whether a GstVulkan.VulkanDisplay exists in display_ptr

Since : 1.18


gst_vulkan_get_or_create_image_view

GstVulkanImageView *
gst_vulkan_get_or_create_image_view (GstVulkanImageMemory * image)

Parameters:

image

a GstVulkanImageMemory

Returns ( [transfer: full] ) –

a GstVulkanImageView for image matching the original layout and format of image

Since : 1.18


GstVulkan.prototype.vulkan_get_or_create_image_view

function GstVulkan.prototype.vulkan_get_or_create_image_view(image: GstVulkan.VulkanImageMemory): {
    // javascript wrapper for 'gst_vulkan_get_or_create_image_view'
}
Returns ( GstVulkan.VulkanImageView ) –

a GstVulkan.VulkanImageView for image matching the original layout and format of image

Since : 1.18


GstVulkan.vulkan_get_or_create_image_view

def GstVulkan.vulkan_get_or_create_image_view (image):
    #python wrapper for 'gst_vulkan_get_or_create_image_view'
Returns ( GstVulkan.VulkanImageView ) –

a GstVulkan.VulkanImageView for image matching the original layout and format of image

Since : 1.18


gst_vulkan_global_context_query

gst_vulkan_global_context_query (GstElement * element,
                                 const gchar * context_type)

Performs the steps necessary for executing a context query including posting a message for the application to respond.

Parameters:

element

a GstElement

context_type

the context type to query for

Since : 1.18


GstVulkan.prototype.vulkan_global_context_query

function GstVulkan.prototype.vulkan_global_context_query(element: Gst.Element, context_type: String): {
    // javascript wrapper for 'gst_vulkan_global_context_query'
}

Performs the steps necessary for executing a context query including posting a message for the application to respond.

Parameters:

element ( Gst.Element ) –

a Gst.Element

context_type ( String ) –

the context type to query for

Since : 1.18


GstVulkan.vulkan_global_context_query

def GstVulkan.vulkan_global_context_query (element, context_type):
    #python wrapper for 'gst_vulkan_global_context_query'

Performs the steps necessary for executing a context query including posting a message for the application to respond.

Parameters:

element ( Gst.Element ) –

a Gst.Element

context_type ( str ) –

the context type to query for

Since : 1.18


gst_vulkan_local_context_query

GstQuery *
gst_vulkan_local_context_query (GstElement * element,
                                const gchar * context_type)

Performs the steps necessary for executing a context query between only other elements in the pipeline

Parameters:

element

a GstElement

context_type

the context type to query for

Returns
No description available

Since : 1.18


GstVulkan.prototype.vulkan_local_context_query

function GstVulkan.prototype.vulkan_local_context_query(element: Gst.Element, context_type: String): {
    // javascript wrapper for 'gst_vulkan_local_context_query'
}

Performs the steps necessary for executing a context query between only other elements in the pipeline

Parameters:

element ( Gst.Element ) –

a Gst.Element

context_type ( String ) –

the context type to query for

Returns ( Gst.Query ) –
No description available

Since : 1.18


GstVulkan.vulkan_local_context_query

def GstVulkan.vulkan_local_context_query (element, context_type):
    #python wrapper for 'gst_vulkan_local_context_query'

Performs the steps necessary for executing a context query between only other elements in the pipeline

Parameters:

element ( Gst.Element ) –

a Gst.Element

context_type ( str ) –

the context type to query for

Returns ( Gst.Query ) –
No description available

Since : 1.18


gst_vulkan_run_query

gboolean
gst_vulkan_run_query (GstElement * element,
                      GstQuery * query,
                      GstPadDirection direction)

Parameters:

element

a GstElement

query

the GstQuery to perform

direction

the GstPadDirection to perform query on

Returns

whether query was answered successfully

Since : 1.18


GstVulkan.prototype.vulkan_run_query

function GstVulkan.prototype.vulkan_run_query(element: Gst.Element, query: Gst.Query, direction: Gst.PadDirection): {
    // javascript wrapper for 'gst_vulkan_run_query'
}

Parameters:

element ( Gst.Element ) –

a Gst.Element

query ( Gst.Query ) –

the Gst.Query to perform

direction ( Gst.PadDirection ) –

the Gst.PadDirection to perform query on

Returns ( Number ) –

whether query was answered successfully

Since : 1.18


GstVulkan.vulkan_run_query

def GstVulkan.vulkan_run_query (element, query, direction):
    #python wrapper for 'gst_vulkan_run_query'

Parameters:

element ( Gst.Element ) –

a Gst.Element

query ( Gst.Query ) –

the Gst.Query to perform

direction ( Gst.PadDirection ) –

the Gst.PadDirection to perform query on

Returns ( bool ) –

whether query was answered successfully

Since : 1.18


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