GstCuda.CudaMemory¶

Fields¶

Name	Type	Access
context	`GstCuda.CudaContext`	r/w
info	`GstVideo.VideoInfo`	r/w
mem	`Gst.Memory`	r/w

Methods¶

class	`init_once` ()
	`export` ()
	`get_alloc_method` ()
	`get_stream` ()
	`get_texture` (plane, filter_mode)
	`get_token_data` (token)
	`get_user_data` ()
	`set_token_data` (token, data, notify)
	`sync` ()

Details¶

class GstCuda.CudaMemory¶

New in version 1.22.

classmethod init_once()¶: Ensures that the GstCuda.CudaAllocator is initialized and ready to be used.

New in version 1.22.

export()¶

Returns:

True if successful

os_handle:: a pointer to OS handle

Return type:

(bool, os_handle: object)

Exports virtual memory handle to OS specific handle.

On Windows, os_handle should be pointer to HANDLE (i.e., void **), and pointer to file descriptor (i.e., int *) on Linux.

The returned os_handle is owned by self and therefore caller shouldn’t close the handle.

New in version 1.24.

get_alloc_method()¶

Return type:: GstCuda.CudaMemoryAllocMethod

Query allocation method

New in version 1.24.

get_stream()¶

Returns:: a GstCuda.CudaStream or None if default CUDA stream is in use
Return type:: GstCuda.CudaStream or None

Gets CUDA stream object associated with self

New in version 1.24.

get_texture(plane, filter_mode)¶

Parameters:

plane (int) – the plane index
filter_mode (CudaGst.filter_mode) – filter mode

Returns:

True if successful

texture:: a pointer to CUtexObject object

Return type:

(bool, texture: int)

Creates CUtexObject with given parameters

New in version 1.24.

get_token_data(token)¶

Parameters:: token (int) – an user token
Returns:: user data pointer or None
Return type:: object or None

Gets back user data pointer stored via GstCuda.CudaMemory.set_token_data()

New in version 1.24.

get_user_data()¶

Returns:: the user data pointer
Return type:: object or None

Gets user data pointer stored via GstCuda.CudaAllocator.alloc_wrapped()

New in version 1.24.

set_token_data(token, data, notify)¶

Parameters:

token (int) – an user token
data (object or None) – an user data
notify (GLib.DestroyNotify) – function to invoke with data as argument, when data needs to be freed

Sets an opaque user data on a GstCuda.CudaMemory

New in version 1.24.

sync()¶: Performs synchronization if needed

New in version 1.24.