GstGL.GLVideoAllocationParams

Fields

Name	Type	Access	Description
parent	GstGL.GLAllocationParams	r/w	the parent GstGL.GLAllocationParams structure
plane	int	r/w	the video plane index to allocate
target	GstGL.GLTextureTarget	r/w	the GstGL.GLTextureTarget to allocate
tex_format	GstGL.GLFormat	r/w	the GstGL.GLFormat to allocate
v_info	GstVideo.VideoInfo	r/w	the GstVideo.VideoInfo to allocate
valign	GstVideo.VideoAlignment	r/w	the GstVideo.VideoAlignment to align the system representation to (may be None for the default)

Methods

class	new (context, alloc_params, v_info, plane, valign, target, tex_format)
class	new_wrapped_data (context, alloc_params, v_info, plane, valign, target, tex_format, wrapped_data, user_data, notify)
class	new_wrapped_gl_handle (context, alloc_params, v_info, plane, valign, target, tex_format, gl_handle, user_data, notify)
class	new_wrapped_texture (context, alloc_params, v_info, plane, valign, target, tex_format, tex_id, user_data, notify)
	copy_data (dest_vid)
	free_data ()

Details

class GstGL.GLVideoAllocationParams

classmethod new(context, alloc_params, v_info, plane, valign, target, tex_format)

Parameters:

• context (GstGL.GLContext) – a GstGL.GLContext

• alloc_params (Gst.AllocationParams or None) – the Gst.AllocationParams for sysmem mappings of the texture

• v_info (GstVideo.VideoInfo) – the GstVideo.VideoInfo for the texture

• plane (int) – the video plane of v_info to allocate

• valign (GstVideo.VideoAlignment or None) – any GstVideo.VideoAlignment applied to symem mappings of the texture

• target (GstGL.GLTextureTarget) – the GstGL.GLTextureTarget for the created textures

• tex_format (GstGL.GLFormat) – the GstGL.GLFormat for the created textures

Returns:

a new GstGL.GLVideoAllocationParams for allocating GstGL.GLMemory's

Return type:

GstGL.GLVideoAllocationParams

New in version 1.8.

classmethod new_wrapped_data(context, alloc_params, v_info, plane, valign, target, tex_format, wrapped_data, user_data, notify)

Parameters:

• context (GstGL.GLContext) – a GstGL.GLContext

• alloc_params (Gst.AllocationParams or None) – the Gst.AllocationParams for wrapped_data

• v_info (GstVideo.VideoInfo) – the GstVideo.VideoInfo for wrapped_data

• plane (int) – the video plane wrapped_data represents

• valign (GstVideo.VideoAlignment or None) – any GstVideo.VideoAlignment applied to symem mappings of wrapped_data

• target (GstGL.GLTextureTarget) – the GstGL.GLTextureTarget for wrapped_data

• tex_format (GstGL.GLFormat) – the GstGL.GLFormat for wrapped_data

• wrapped_data (object or None) – the data pointer to wrap

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

• notify (GLib.DestroyNotify or None) – a GLib.DestroyNotify

Returns:

a new GstGL.GLVideoAllocationParams for wrapping wrapped_data

Return type:

GstGL.GLVideoAllocationParams

New in version 1.8.

classmethod new_wrapped_gl_handle(context, alloc_params, v_info, plane, valign, target, tex_format, gl_handle, user_data, notify)

Parameters:

• context (GstGL.GLContext) – a GstGL.GLContext

• alloc_params (Gst.AllocationParams or None) – the Gst.AllocationParams for tex_id

• v_info (GstVideo.VideoInfo) – the GstVideo.VideoInfo for tex_id

• plane (int) – the video plane tex_id represents

• valign (GstVideo.VideoAlignment or None) – any GstVideo.VideoAlignment applied to symem mappings of tex_id

• target (GstGL.GLTextureTarget) – the GstGL.GLTextureTarget for tex_id

• tex_format (GstGL.GLFormat) – the GstGL.GLFormat for tex_id

• gl_handle (object or None) – the GL handle to wrap

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

• notify (GLib.DestroyNotify or None) – a GLib.DestroyNotify

Returns:

a new GstGL.GLVideoAllocationParams for wrapping gl_handle

Return type:

GstGL.GLVideoAllocationParams

gl_handle is defined by the specific OpenGL handle being wrapped For GstGL.GLMemory and GstGL.GLMemoryPBO it is an OpenGL texture id. Other memory types may define it to require a different type of parameter.

New in version 1.8.

classmethod new_wrapped_texture(context, alloc_params, v_info, plane, valign, target, tex_format, tex_id, user_data, notify)

Parameters:

• context (GstGL.GLContext) – a GstGL.GLContext

• alloc_params (Gst.AllocationParams or None) – the Gst.AllocationParams for tex_id

• v_info (GstVideo.VideoInfo) – the GstVideo.VideoInfo for tex_id

• plane (int) – the video plane tex_id represents

• valign (GstVideo.VideoAlignment or None) – any GstVideo.VideoAlignment applied to symem mappings of tex_id

• target (GstGL.GLTextureTarget) – the GstGL.GLTextureTarget for tex_id

• tex_format (GstGL.GLFormat) – the GstGL.GLFormat for tex_id

• tex_id (int) – the GL texture to wrap

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

• notify (GLib.DestroyNotify or None) – a GLib.DestroyNotify

Returns:

a new GstGL.GLVideoAllocationParams for wrapping tex_id

Return type:

GstGL.GLVideoAllocationParams

New in version 1.8.

copy_data(dest_vid)

Parameters:

dest_vid (GstGL.GLVideoAllocationParams) – destination GstGL.GLVideoAllocationParams to copy into

Copy and set any dynamically allocated resources in dest_vid. Intended for subclass usage only to chain up at the end of a subclass copy function.

New in version 1.8.

free_data()

Unset and free any dynamically allocated resources. Intended for subclass usage only to chain up at the end of a subclass free function.

New in version 1.8.