GstGLMemory

GstGLMemory is a GstGLBaseMemory subclass providing support for the mapping of OpenGL textures.

GstGLMemory is created or wrapped through gst_gl_base_memory_alloc with GstGLVideoAllocationParams.

Data is uploaded or downloaded from the GPU as is necessary.

The GstCaps that is used for GstGLMemory based buffers should contain the GST_CAPS_FEATURE_MEMORY_GL_MEMORY as a GstCapsFeatures and should contain a 'texture-target' field with one of the GstGLTextureTarget values as a string, i.e. some combination of 'texture-target=(string){2D, rectangle, external-oes}'.

GstGLMemory

Represents information about a GL texture

Members

mem (GstGLBaseMemory) –

the parent GstGLBaseMemory object

tex_id (guint) –

the GL texture id for this memory

tex_target (GstGLTextureTarget) –

the GL texture target for this memory

tex_format (GstGLFormat) –

the texture type

info (GstVideoInfo) –

the texture's GstVideoInfo

valign (GstVideoAlignment) –

data alignment for system memory mapping

plane (guint) –

data plane in info

tex_scaling (gfloat*) –

GL shader scaling parameters for valign and/or width/height

texture_wrapped (gboolean) –
No description available
unpack_length (guint) –
No description available
tex_width (guint) –
No description available

GstGL.GLMemory

Represents information about a GL texture

Members

mem (GstGL.GLBaseMemory) –

the parent GstGL.GLBaseMemory object

tex_id (Number) –

the GL texture id for this memory

tex_target (GstGL.GLTextureTarget) –

the GL texture target for this memory

tex_format (GstGL.GLFormat) –

the texture type

info (GstVideo.VideoInfo) –

the texture's GstVideoInfo

valign (GstVideo.VideoAlignment) –

data alignment for system memory mapping

plane (Number) –

data plane in info

tex_scaling ([ Number ]) –

GL shader scaling parameters for valign and/or width/height

texture_wrapped (Number) –
No description available
unpack_length (Number) –
No description available
tex_width (Number) –
No description available

GstGL.GLMemory

Represents information about a GL texture

Members

mem (GstGL.GLBaseMemory) –

the parent GstGL.GLBaseMemory object

tex_id (int) –

the GL texture id for this memory

tex_target (GstGL.GLTextureTarget) –

the GL texture target for this memory

tex_format (GstGL.GLFormat) –

the texture type

info (GstVideo.VideoInfo) –

the texture's GstVideoInfo

valign (GstVideo.VideoAlignment) –

data alignment for system memory mapping

plane (int) –

data plane in info

tex_scaling ([ float ]) –

GL shader scaling parameters for valign and/or width/height

texture_wrapped (bool) –
No description available
unpack_length (int) –
No description available
tex_width (int) –
No description available

Methods

gst_gl_memory_copy_into

gboolean
gst_gl_memory_copy_into (GstGLMemory * gl_mem,
                         guint tex_id,
                         GstGLTextureTarget target,
                         GstGLFormat tex_format,
                         gint width,
                         gint height)

Copies gl_mem into the texture specified by tex_id. The format of tex_id is specified by tex_format, width and height.

Parameters:

gl_mem

a GstGLMemory

tex_id

OpenGL texture id

target

the GstGLTextureTarget

tex_format

the GstGLFormat

width

width of tex_id

height

height of tex_id

Returns

Whether the copy succeeded

Since : 1.8


GstGL.GLMemory.prototype.copy_into

function GstGL.GLMemory.prototype.copy_into(tex_id: Number, target: GstGL.GLTextureTarget, tex_format: GstGL.GLFormat, width: Number, height: Number): {
    // javascript wrapper for 'gst_gl_memory_copy_into'
}

Copies gl_mem into the texture specified by tex_id. The format of tex_id is specified by tex_format, width and height.

Parameters:

tex_id (Number)

OpenGL texture id

tex_format (GstGL.GLFormat)

the GstGL.GLFormat

width (Number)

width of tex_id

height (Number)

height of tex_id

Returns (Number)

Whether the copy succeeded

Since : 1.8


GstGL.GLMemory.copy_into

def GstGL.GLMemory.copy_into (self, tex_id, target, tex_format, width, height):
    #python wrapper for 'gst_gl_memory_copy_into'

Copies gl_mem into the texture specified by tex_id. The format of tex_id is specified by tex_format, width and height.

Parameters:

tex_id (int)

OpenGL texture id

tex_format (GstGL.GLFormat)

the GstGL.GLFormat

width (int)

width of tex_id

height (int)

height of tex_id

Returns (bool)

Whether the copy succeeded

Since : 1.8


gst_gl_memory_copy_teximage

gboolean
gst_gl_memory_copy_teximage (GstGLMemory * src,
                             guint tex_id,
                             GstGLTextureTarget out_target,
                             GstGLFormat out_tex_format,
                             gint out_width,
                             gint out_height)

Copies the texture in GstGLMemory into the texture specified by tex_id, out_target, out_tex_format, out_width and out_height.

Parameters:

src

the source GstGLMemory

tex_id

the destination texture id

out_target

the destination GstGLTextureTarget

out_tex_format

the destination GstGLFormat

out_width

the destination width

out_height

the destination height

Returns

whether the copy succeeded.

Since : 1.8


GstGL.GLMemory.prototype.copy_teximage

function GstGL.GLMemory.prototype.copy_teximage(tex_id: Number, out_target: GstGL.GLTextureTarget, out_tex_format: GstGL.GLFormat, out_width: Number, out_height: Number): {
    // javascript wrapper for 'gst_gl_memory_copy_teximage'
}

Copies the texture in GstGL.GLMemory into the texture specified by tex_id, out_target, out_tex_format, out_width and out_height.

Parameters:

src (GstGL.GLMemory)

the source GstGL.GLMemory

tex_id (Number)

the destination texture id

out_target (GstGL.GLTextureTarget)

the destination GstGL.GLTextureTarget

out_tex_format (GstGL.GLFormat)

the destination GstGL.GLFormat

out_width (Number)

the destination width

out_height (Number)

the destination height

Returns (Number)

whether the copy succeeded.

Since : 1.8


GstGL.GLMemory.copy_teximage

def GstGL.GLMemory.copy_teximage (self, tex_id, out_target, out_tex_format, out_width, out_height):
    #python wrapper for 'gst_gl_memory_copy_teximage'

Copies the texture in GstGL.GLMemory into the texture specified by tex_id, out_target, out_tex_format, out_width and out_height.

Parameters:

src (GstGL.GLMemory)

the source GstGL.GLMemory

tex_id (int)

the destination texture id

out_target (GstGL.GLTextureTarget)

the destination GstGL.GLTextureTarget

out_tex_format (GstGL.GLFormat)

the destination GstGL.GLFormat

out_width (int)

the destination width

out_height (int)

the destination height

Returns (bool)

whether the copy succeeded.

Since : 1.8


gst_gl_memory_get_texture_format

GstGLFormat
gst_gl_memory_get_texture_format (GstGLMemory * gl_mem)

Parameters:

gl_mem

a GstGLMemory

Returns

the GstGLFormat of gl_mem

Since : 1.12


GstGL.GLMemory.prototype.get_texture_format

function GstGL.GLMemory.prototype.get_texture_format(): {
    // javascript wrapper for 'gst_gl_memory_get_texture_format'
}

Parameters:

Returns (GstGL.GLFormat)

the GstGL.GLFormat of gl_mem

Since : 1.12


GstGL.GLMemory.get_texture_format

def GstGL.GLMemory.get_texture_format (self):
    #python wrapper for 'gst_gl_memory_get_texture_format'

Parameters:

Returns (GstGL.GLFormat)

the GstGL.GLFormat of gl_mem

Since : 1.12


gst_gl_memory_get_texture_height

gint
gst_gl_memory_get_texture_height (GstGLMemory * gl_mem)

Parameters:

gl_mem

a GstGLMemory

Returns

the texture height of gl_mem

Since : 1.8


GstGL.GLMemory.prototype.get_texture_height

function GstGL.GLMemory.prototype.get_texture_height(): {
    // javascript wrapper for 'gst_gl_memory_get_texture_height'
}

Parameters:

Returns (Number)

the texture height of gl_mem

Since : 1.8


GstGL.GLMemory.get_texture_height

def GstGL.GLMemory.get_texture_height (self):
    #python wrapper for 'gst_gl_memory_get_texture_height'

Parameters:

Returns (int)

the texture height of gl_mem

Since : 1.8


gst_gl_memory_get_texture_id

guint
gst_gl_memory_get_texture_id (GstGLMemory * gl_mem)

Parameters:

gl_mem

a GstGLMemory

Returns

the OpenGL texture handle of gl_mem

Since : 1.8


GstGL.GLMemory.prototype.get_texture_id

function GstGL.GLMemory.prototype.get_texture_id(): {
    // javascript wrapper for 'gst_gl_memory_get_texture_id'
}

Parameters:

Returns (Number)

the OpenGL texture handle of gl_mem

Since : 1.8


GstGL.GLMemory.get_texture_id

def GstGL.GLMemory.get_texture_id (self):
    #python wrapper for 'gst_gl_memory_get_texture_id'

Parameters:

Returns (int)

the OpenGL texture handle of gl_mem

Since : 1.8


gst_gl_memory_get_texture_target

GstGLTextureTarget
gst_gl_memory_get_texture_target (GstGLMemory * gl_mem)

Parameters:

gl_mem

a GstGLMemory

Returns

the GstGLTextureTarget of gl_mem

Since : 1.8


GstGL.GLMemory.prototype.get_texture_target

function GstGL.GLMemory.prototype.get_texture_target(): {
    // javascript wrapper for 'gst_gl_memory_get_texture_target'
}

Parameters:

Returns (GstGL.GLTextureTarget)

the GstGL.GLTextureTarget of gl_mem

Since : 1.8


GstGL.GLMemory.get_texture_target

def GstGL.GLMemory.get_texture_target (self):
    #python wrapper for 'gst_gl_memory_get_texture_target'

Parameters:

Returns (GstGL.GLTextureTarget)

the GstGL.GLTextureTarget of gl_mem

Since : 1.8


gst_gl_memory_get_texture_width

gint
gst_gl_memory_get_texture_width (GstGLMemory * gl_mem)

Parameters:

gl_mem

a GstGLMemory

Returns

the texture width of gl_mem

Since : 1.8


GstGL.GLMemory.prototype.get_texture_width

function GstGL.GLMemory.prototype.get_texture_width(): {
    // javascript wrapper for 'gst_gl_memory_get_texture_width'
}

Parameters:

Returns (Number)

the texture width of gl_mem

Since : 1.8


GstGL.GLMemory.get_texture_width

def GstGL.GLMemory.get_texture_width (self):
    #python wrapper for 'gst_gl_memory_get_texture_width'

Parameters:

Returns (int)

the texture width of gl_mem

Since : 1.8


gst_gl_memory_init

gst_gl_memory_init (GstGLMemory * mem,
                    GstAllocator* allocator,
                    GstMemory* parent,
                    GstGLContext * context,
                    GstGLTextureTarget target,
                    GstGLFormat tex_format,
                    const GstAllocationParams* params,
                    const GstVideoInfo* info,
                    guint plane,
                    const GstVideoAlignment* valign,
                    gpointer user_data,
                    GDestroyNotify notify)

Initializes mem with the required parameters. info is assumed to have already have been modified with gst_video_info_align.

Parameters:

mem

the GstGLBaseMemory to initialize

allocator

the GstAllocator to initialize with

parent ( [allow-none])

the parent GstMemory to initialize with

context

the GstGLContext to initialize with

target

the GstGLTextureTarget for this GstGLMemory

tex_format

the GstGLFormat for this GstGLMemory

params ( [allow-none])

the GstAllocationParams to initialize with

info

the GstVideoInfo for this GstGLMemory

plane

the plane number (starting from 0) for this GstGLMemory

valign ( [allow-none])

optional GstVideoAlignment parameters

user_data ( [allow-none])

user data to call notify with

notify ( [allow-none])

a GDestroyNotify

Since : 1.8


GstGL.GLMemory.prototype.init

function GstGL.GLMemory.prototype.init(allocator: Gst.Allocator, parent: Gst.Memory, context: GstGL.GLContext, target: GstGL.GLTextureTarget, tex_format: GstGL.GLFormat, params: Gst.AllocationParams, info: GstVideo.VideoInfo, plane: Number, valign: GstVideo.VideoAlignment, user_data: Object, notify: GLib.DestroyNotify): {
    // javascript wrapper for 'gst_gl_memory_init'
}

Initializes mem with the required parameters. info is assumed to have already have been modified with gst_video_info_align.

Parameters:

mem (GstGL.GLMemory)

the GstGL.GLBaseMemory to initialize

allocator (Gst.Allocator)

the GstAllocator to initialize with

parent (Gst.Memory)

the parent GstMemory to initialize with

context (GstGL.GLContext)

the GstGL.GLContext to initialize with

tex_format (GstGL.GLFormat)

the GstGL.GLFormat for this GstGL.GLMemory

params (Gst.AllocationParams)

the GstAllocationParams to initialize with

info (GstVideo.VideoInfo)

the GstVideoInfo for this GstGL.GLMemory

plane (Number)

the plane number (starting from 0) for this GstGL.GLMemory

valign (GstVideo.VideoAlignment)

optional GstVideoAlignment parameters

user_data (Object)

user data to call notify with

notify (GLib.DestroyNotify)

a GDestroyNotify

Since : 1.8


GstGL.GLMemory.init

def GstGL.GLMemory.init (self, allocator, parent, context, target, tex_format, params, info, plane, valign, user_data, notify):
    #python wrapper for 'gst_gl_memory_init'

Initializes mem with the required parameters. info is assumed to have already have been modified with gst_video_info_align.

Parameters:

mem (GstGL.GLMemory)

the GstGL.GLBaseMemory to initialize

allocator (Gst.Allocator)

the GstAllocator to initialize with

parent (Gst.Memory)

the parent GstMemory to initialize with

context (GstGL.GLContext)

the GstGL.GLContext to initialize with

tex_format (GstGL.GLFormat)

the GstGL.GLFormat for this GstGL.GLMemory

params (Gst.AllocationParams)

the GstAllocationParams to initialize with

info (GstVideo.VideoInfo)

the GstVideoInfo for this GstGL.GLMemory

plane (int)

the plane number (starting from 0) for this GstGL.GLMemory

valign (GstVideo.VideoAlignment)

optional GstVideoAlignment parameters

user_data (object)

user data to call notify with

notify (GLib.DestroyNotify)

a GDestroyNotify

Since : 1.8


gst_gl_memory_read_pixels

gboolean
gst_gl_memory_read_pixels (GstGLMemory * gl_mem,
                           gpointer write_pointer)

Reads the texture in GstGLMemory into write_pointer if no buffer is bound to GL_PIXEL_PACK_BUFFER. Otherwise write_pointer is the byte offset into the currently bound GL_PIXEL_PACK_BUFFER buffer to store the result of glReadPixels. See the OpenGL specification for glReadPixels for more details.

Parameters:

gl_mem

a GstGLMemory

write_pointer

the data pointer to pass to glReadPixels

Returns

whether theread operation succeeded

Since : 1.8


GstGL.GLMemory.prototype.read_pixels

function GstGL.GLMemory.prototype.read_pixels(write_pointer: Object): {
    // javascript wrapper for 'gst_gl_memory_read_pixels'
}

Reads the texture in GstGL.GLMemory into write_pointer if no buffer is bound to GL_PIXEL_PACK_BUFFER. Otherwise write_pointer is the byte offset into the currently bound GL_PIXEL_PACK_BUFFER buffer to store the result of glReadPixels. See the OpenGL specification for glReadPixels for more details.

Parameters:

write_pointer (Object)

the data pointer to pass to glReadPixels

Returns (Number)

whether theread operation succeeded

Since : 1.8


GstGL.GLMemory.read_pixels

def GstGL.GLMemory.read_pixels (self, write_pointer):
    #python wrapper for 'gst_gl_memory_read_pixels'

Reads the texture in GstGL.GLMemory into write_pointer if no buffer is bound to GL_PIXEL_PACK_BUFFER. Otherwise write_pointer is the byte offset into the currently bound GL_PIXEL_PACK_BUFFER buffer to store the result of glReadPixels. See the OpenGL specification for glReadPixels for more details.

Parameters:

write_pointer (object)

the data pointer to pass to glReadPixels

Returns (bool)

whether theread operation succeeded

Since : 1.8


gst_gl_memory_texsubimage

gst_gl_memory_texsubimage (GstGLMemory * gl_mem,
                           gpointer read_pointer)

Reads the texture in read_pointer into gl_mem.

See gst_gl_memory_read_pixels for what read_pointer signifies.

Parameters:

gl_mem

a GstGLMemory

read_pointer

the data pointer to pass to glTexSubImage

Since : 1.8


GstGL.GLMemory.prototype.texsubimage

function GstGL.GLMemory.prototype.texsubimage(read_pointer: Object): {
    // javascript wrapper for 'gst_gl_memory_texsubimage'
}

Reads the texture in read_pointer into gl_mem.

See GstGL.GLMemory.prototype.read_pixels for what read_pointer signifies.

Parameters:

read_pointer (Object)

the data pointer to pass to glTexSubImage

Since : 1.8


GstGL.GLMemory.texsubimage

def GstGL.GLMemory.texsubimage (self, read_pointer):
    #python wrapper for 'gst_gl_memory_texsubimage'

Reads the texture in read_pointer into gl_mem.

See GstGL.GLMemory.read_pixels for what read_pointer signifies.

Parameters:

read_pointer (object)

the data pointer to pass to glTexSubImage

Since : 1.8


Functions

gst_gl_memory_init_once

gst_gl_memory_init_once ()

Initializes the GL Base Texture allocator. It is safe to call this function multiple times. This must be called before any other GstGLMemory operation.

Since : 1.4


GstGL.GLMemory.prototype.init_once

function GstGL.GLMemory.prototype.init_once(): {
    // javascript wrapper for 'gst_gl_memory_init_once'
}

Initializes the GL Base Texture allocator. It is safe to call this function multiple times. This must be called before any other GstGLMemory operation.

Since : 1.4


GstGL.GLMemory.init_once

def GstGL.GLMemory.init_once ():
    #python wrapper for 'gst_gl_memory_init_once'

Initializes the GL Base Texture allocator. It is safe to call this function multiple times. This must be called before any other GstGLMemory operation.

Since : 1.4


gst_gl_memory_setup_buffer

gboolean
gst_gl_memory_setup_buffer (GstGLMemoryAllocator * allocator,
                            GstBuffer* buffer,
                            GstGLVideoAllocationParams * params,
                            GstGLFormat * tex_formats,
                            gpointer* wrapped_data,
                            gsize n_wrapped_pointers)

Parameters:

allocator

the GstGLMemoryAllocator to allocate from

buffer

a GstBuffer to setup

params

the GstGLVideoAllocationParams to allocate with

tex_formats

(allow-none) (array length=n_wrapped_pointers): a list of GstGLFormat's to allocate with.

wrapped_data

(array length=n_wrapped_pointers) (element-type gpointer): a list of wrapped data pointers

n_wrapped_pointers

the number of elements in tex_formats and wrapped_data

Returns

whether the buffer was correctly setup

Since : 1.8


GstGLMemoryAllocator

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstAllocator
                ╰──GstGLBaseMemoryAllocator
                    ╰──GstGLMemoryAllocator
                        ╰──GstGLMemoryPBOAllocator

Opaque GstGLMemoryAllocator struct


Class structure

GstGLMemoryAllocatorClass

Fields

provide a custom map implementation

provide a custom copy implementation

provide a custom unmap implementation


GstGL.GLMemoryAllocatorClass

Attributes

provide a custom map implementation

provide a custom copy implementation

provide a custom unmap implementation


GstGL.GLMemoryAllocatorClass

Attributes

provide a custom map implementation

provide a custom copy implementation

provide a custom unmap implementation


GstGL.GLMemoryAllocator

GObject.Object
    ╰──GObject.InitiallyUnowned
        ╰──Gst.Object
            ╰──Gst.Allocator
                ╰──GstGL.GLBaseMemoryAllocator
                    ╰──GstGL.GLMemoryAllocator
                        ╰──GstGL.GLMemoryPBOAllocator

Opaque GstGL.GLMemoryAllocator struct


GstGL.GLMemoryAllocator

GObject.Object
    ╰──GObject.InitiallyUnowned
        ╰──Gst.Object
            ╰──Gst.Allocator
                ╰──GstGL.GLBaseMemoryAllocator
                    ╰──GstGL.GLMemoryAllocator
                        ╰──GstGL.GLMemoryPBOAllocator

Opaque GstGL.GLMemoryAllocator struct


Functions

gst_gl_memory_allocator_get_default

GstGLMemoryAllocator *
gst_gl_memory_allocator_get_default (GstGLContext * context)

Parameters:

context

a GstGLContext

Returns ( [transfer: full])

the default GstGLMemoryAllocator supported by context

Since : 1.8


GstGL.GLMemoryAllocator.prototype.get_default

function GstGL.GLMemoryAllocator.prototype.get_default(context: GstGL.GLContext): {
    // javascript wrapper for 'gst_gl_memory_allocator_get_default'
}

Parameters:

Returns (GstGL.GLMemoryAllocator)

the default GstGL.GLMemoryAllocator supported by context

Since : 1.8


GstGL.GLMemoryAllocator.get_default

def GstGL.GLMemoryAllocator.get_default (context):
    #python wrapper for 'gst_gl_memory_allocator_get_default'

Parameters:

Returns (GstGL.GLMemoryAllocator)

the default GstGL.GLMemoryAllocator supported by context

Since : 1.8


GstGLVideoAllocationParams

Members

parent (GstGLAllocationParams) –

the parent GstGLAllocationParams structure

v_info (GstVideoInfo*) –

the GstVideoInfo to allocate

plane (guint) –

the video plane index to allocate

valign (GstVideoAlignment*) –

the GstVideoAlignment to align the system representation to (may be NULL for the default)

target (GstGLTextureTarget) –

the GstGLTextureTarget to allocate

tex_format (GstGLFormat) –

the GstGLFormat to allocate


GstGL.GLVideoAllocationParams

Members

the parent GstGL.GLAllocationParams structure

v_info (GstVideo.VideoInfo) –

the GstVideoInfo to allocate

plane (Number) –

the video plane index to allocate

valign (GstVideo.VideoAlignment) –

the GstVideoAlignment to align the system representation to (may be NULL for the default)

target (GstGL.GLTextureTarget) –

the GstGL.GLTextureTarget to allocate

tex_format (GstGL.GLFormat) –

the GstGL.GLFormat to allocate


GstGL.GLVideoAllocationParams

Members

the parent GstGL.GLAllocationParams structure

v_info (GstVideo.VideoInfo) –

the GstVideoInfo to allocate

plane (int) –

the video plane index to allocate

valign (GstVideo.VideoAlignment) –

the GstVideoAlignment to align the system representation to (may be NULL for the default)

target (GstGL.GLTextureTarget) –

the GstGL.GLTextureTarget to allocate

tex_format (GstGL.GLFormat) –

the GstGL.GLFormat to allocate


Constructors

gst_gl_video_allocation_params_new

GstGLVideoAllocationParams *
gst_gl_video_allocation_params_new (GstGLContext * context,
                                    const GstAllocationParams* alloc_params,
                                    const GstVideoInfo* v_info,
                                    guint plane,
                                    const GstVideoAlignment* valign,
                                    GstGLTextureTarget target,
                                    GstGLFormat tex_format)

Parameters:

context

a GstGLContext

alloc_params ( [allow-none])

the GstAllocationParams for sysmem mappings of the texture

v_info

the GstVideoInfo for the texture

plane

the video plane of v_info to allocate

valign ( [allow-none])

any GstVideoAlignment applied to symem mappings of the texture

target

the GstGLTextureTarget for the created textures

tex_format

the GstGLFormat for the created textures

Returns

a new GstGLVideoAllocationParams for allocating GstGLMemory's

Since : 1.8


GstGL.GLVideoAllocationParams.prototype.new

function GstGL.GLVideoAllocationParams.prototype.new(context: GstGL.GLContext, alloc_params: Gst.AllocationParams, v_info: GstVideo.VideoInfo, plane: Number, valign: GstVideo.VideoAlignment, target: GstGL.GLTextureTarget, tex_format: GstGL.GLFormat): {
    // javascript wrapper for 'gst_gl_video_allocation_params_new'
}

Parameters:

alloc_params (Gst.AllocationParams)

the GstAllocationParams for sysmem mappings of the texture

v_info (GstVideo.VideoInfo)

the GstVideoInfo for the texture

plane (Number)

the video plane of v_info to allocate

valign (GstVideo.VideoAlignment)

any GstVideoAlignment 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

Since : 1.8


GstGL.GLVideoAllocationParams.new

def GstGL.GLVideoAllocationParams.new (context, alloc_params, v_info, plane, valign, target, tex_format):
    #python wrapper for 'gst_gl_video_allocation_params_new'

Parameters:

alloc_params (Gst.AllocationParams)

the GstAllocationParams for sysmem mappings of the texture

v_info (GstVideo.VideoInfo)

the GstVideoInfo for the texture

plane (int)

the video plane of v_info to allocate

valign (GstVideo.VideoAlignment)

any GstVideoAlignment 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

Since : 1.8


gst_gl_video_allocation_params_new_wrapped_data

GstGLVideoAllocationParams *
gst_gl_video_allocation_params_new_wrapped_data (GstGLContext * context,
                                                 const GstAllocationParams* alloc_params,
                                                 const GstVideoInfo* v_info,
                                                 guint plane,
                                                 const GstVideoAlignment* valign,
                                                 GstGLTextureTarget target,
                                                 GstGLFormat tex_format,
                                                 gpointer wrapped_data,
                                                 gpointer user_data,
                                                 GDestroyNotify notify)

Parameters:

context

a GstGLContext

alloc_params ( [allow-none])

the GstAllocationParams for wrapped_data

v_info

the GstVideoInfo for wrapped_data

plane

the video plane wrapped_data represents

valign ( [allow-none])

any GstVideoAlignment applied to symem mappings of wrapped_data

target

the GstGLTextureTarget for wrapped_data

tex_format

the GstGLFormat for wrapped_data

wrapped_data

the data pointer to wrap

user_data ( [allow-none])

user data to call notify with

notify ( [allow-none])

a GDestroyNotify

Returns

a new GstGLVideoAllocationParams for wrapping wrapped_data

Since : 1.8


GstGL.GLVideoAllocationParams.prototype.new_wrapped_data

function GstGL.GLVideoAllocationParams.prototype.new_wrapped_data(context: GstGL.GLContext, alloc_params: Gst.AllocationParams, v_info: GstVideo.VideoInfo, plane: Number, valign: GstVideo.VideoAlignment, target: GstGL.GLTextureTarget, tex_format: GstGL.GLFormat, wrapped_data: Object, user_data: Object, notify: GLib.DestroyNotify): {
    // javascript wrapper for 'gst_gl_video_allocation_params_new_wrapped_data'
}

Parameters:

alloc_params (Gst.AllocationParams)

the GstAllocationParams for wrapped_data

v_info (GstVideo.VideoInfo)

the GstVideoInfo for wrapped_data

plane (Number)

the video plane wrapped_data represents

valign (GstVideo.VideoAlignment)

any GstVideoAlignment 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)

the data pointer to wrap

user_data (Object)

user data to call notify with

notify (GLib.DestroyNotify)

a GDestroyNotify

a new GstGL.GLVideoAllocationParams for wrapping wrapped_data

Since : 1.8


GstGL.GLVideoAllocationParams.new_wrapped_data

def GstGL.GLVideoAllocationParams.new_wrapped_data (context, alloc_params, v_info, plane, valign, target, tex_format, wrapped_data, user_data, notify):
    #python wrapper for 'gst_gl_video_allocation_params_new_wrapped_data'

Parameters:

alloc_params (Gst.AllocationParams)

the GstAllocationParams for wrapped_data

v_info (GstVideo.VideoInfo)

the GstVideoInfo for wrapped_data

plane (int)

the video plane wrapped_data represents

valign (GstVideo.VideoAlignment)

any GstVideoAlignment 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)

the data pointer to wrap

user_data (object)

user data to call notify with

notify (GLib.DestroyNotify)

a GDestroyNotify

a new GstGL.GLVideoAllocationParams for wrapping wrapped_data

Since : 1.8


gst_gl_video_allocation_params_new_wrapped_gl_handle

GstGLVideoAllocationParams *
gst_gl_video_allocation_params_new_wrapped_gl_handle (GstGLContext * context,
                                                      const GstAllocationParams* alloc_params,
                                                      const GstVideoInfo* v_info,
                                                      guint plane,
                                                      const GstVideoAlignment* valign,
                                                      GstGLTextureTarget target,
                                                      GstGLFormat tex_format,
                                                      gpointer gl_handle,
                                                      gpointer user_data,
                                                      GDestroyNotify notify)

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

Parameters:

context

a GstGLContext

alloc_params ( [allow-none])

the GstAllocationParams for tex_id

v_info

the GstVideoInfo for tex_id

plane

the video plane tex_id represents

valign ( [allow-none])

any GstVideoAlignment applied to symem mappings of tex_id

target

the GstGLTextureTarget for tex_id

tex_format

the GstGLFormat for tex_id

gl_handle

the GL handle to wrap

user_data ( [allow-none])

user data to call notify with

notify ( [allow-none])

a GDestroyNotify

Returns

a new GstGLVideoAllocationParams for wrapping gl_handle

Since : 1.8


GstGL.GLVideoAllocationParams.prototype.new_wrapped_gl_handle

function GstGL.GLVideoAllocationParams.prototype.new_wrapped_gl_handle(context: GstGL.GLContext, alloc_params: Gst.AllocationParams, v_info: GstVideo.VideoInfo, plane: Number, valign: GstVideo.VideoAlignment, target: GstGL.GLTextureTarget, tex_format: GstGL.GLFormat, gl_handle: Object, user_data: Object, notify: GLib.DestroyNotify): {
    // javascript wrapper for 'gst_gl_video_allocation_params_new_wrapped_gl_handle'
}

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.

Parameters:

alloc_params (Gst.AllocationParams)

the GstAllocationParams for tex_id

v_info (GstVideo.VideoInfo)

the GstVideoInfo for tex_id

plane (Number)

the video plane tex_id represents

valign (GstVideo.VideoAlignment)

any GstVideoAlignment 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)

the GL handle to wrap

user_data (Object)

user data to call notify with

notify (GLib.DestroyNotify)

a GDestroyNotify

a new GstGL.GLVideoAllocationParams for wrapping gl_handle

Since : 1.8


GstGL.GLVideoAllocationParams.new_wrapped_gl_handle

def GstGL.GLVideoAllocationParams.new_wrapped_gl_handle (context, alloc_params, v_info, plane, valign, target, tex_format, gl_handle, user_data, notify):
    #python wrapper for 'gst_gl_video_allocation_params_new_wrapped_gl_handle'

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.

Parameters:

alloc_params (Gst.AllocationParams)

the GstAllocationParams for tex_id

v_info (GstVideo.VideoInfo)

the GstVideoInfo for tex_id

plane (int)

the video plane tex_id represents

valign (GstVideo.VideoAlignment)

any GstVideoAlignment 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)

the GL handle to wrap

user_data (object)

user data to call notify with

notify (GLib.DestroyNotify)

a GDestroyNotify

a new GstGL.GLVideoAllocationParams for wrapping gl_handle

Since : 1.8


gst_gl_video_allocation_params_new_wrapped_texture

GstGLVideoAllocationParams *
gst_gl_video_allocation_params_new_wrapped_texture (GstGLContext * context,
                                                    const GstAllocationParams* alloc_params,
                                                    const GstVideoInfo* v_info,
                                                    guint plane,
                                                    const GstVideoAlignment* valign,
                                                    GstGLTextureTarget target,
                                                    GstGLFormat tex_format,
                                                    guint tex_id,
                                                    gpointer user_data,
                                                    GDestroyNotify notify)

Parameters:

context

a GstGLContext

alloc_params ( [allow-none])

the GstAllocationParams for tex_id

v_info

the GstVideoInfo for tex_id

plane

the video plane tex_id represents

valign ( [allow-none])

any GstVideoAlignment applied to symem mappings of tex_id

target

the GstGLTextureTarget for tex_id

tex_format

the GstGLFormat for tex_id

tex_id

the GL texture to wrap

user_data ( [allow-none])

user data to call notify with

notify ( [allow-none])

a GDestroyNotify

Returns

a new GstGLVideoAllocationParams for wrapping tex_id

Since : 1.8


GstGL.GLVideoAllocationParams.prototype.new_wrapped_texture

function GstGL.GLVideoAllocationParams.prototype.new_wrapped_texture(context: GstGL.GLContext, alloc_params: Gst.AllocationParams, v_info: GstVideo.VideoInfo, plane: Number, valign: GstVideo.VideoAlignment, target: GstGL.GLTextureTarget, tex_format: GstGL.GLFormat, tex_id: Number, user_data: Object, notify: GLib.DestroyNotify): {
    // javascript wrapper for 'gst_gl_video_allocation_params_new_wrapped_texture'
}

Parameters:

alloc_params (Gst.AllocationParams)

the GstAllocationParams for tex_id

v_info (GstVideo.VideoInfo)

the GstVideoInfo for tex_id

plane (Number)

the video plane tex_id represents

valign (GstVideo.VideoAlignment)

any GstVideoAlignment 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 (Number)

the GL texture to wrap

user_data (Object)

user data to call notify with

notify (GLib.DestroyNotify)

a GDestroyNotify

a new GstGL.GLVideoAllocationParams for wrapping tex_id

Since : 1.8


GstGL.GLVideoAllocationParams.new_wrapped_texture

def GstGL.GLVideoAllocationParams.new_wrapped_texture (context, alloc_params, v_info, plane, valign, target, tex_format, tex_id, user_data, notify):
    #python wrapper for 'gst_gl_video_allocation_params_new_wrapped_texture'

Parameters:

alloc_params (Gst.AllocationParams)

the GstAllocationParams for tex_id

v_info (GstVideo.VideoInfo)

the GstVideoInfo for tex_id

plane (int)

the video plane tex_id represents

valign (GstVideo.VideoAlignment)

any GstVideoAlignment 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)

user data to call notify with

notify (GLib.DestroyNotify)

a GDestroyNotify

a new GstGL.GLVideoAllocationParams for wrapping tex_id

Since : 1.8


Methods

gst_gl_video_allocation_params_copy_data

gst_gl_video_allocation_params_copy_data (GstGLVideoAllocationParams * src_vid,
                                          GstGLVideoAllocationParams * dest_vid)

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.

Parameters:

src_vid

source GstGLVideoAllocationParams to copy from

dest_vid

destination GstGLVideoAllocationParams to copy into

Since : 1.8


GstGL.GLVideoAllocationParams.prototype.copy_data

function GstGL.GLVideoAllocationParams.prototype.copy_data(dest_vid: GstGL.GLVideoAllocationParams): {
    // javascript wrapper for 'gst_gl_video_allocation_params_copy_data'
}

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.

Parameters:

destination GstGL.GLVideoAllocationParams to copy into

Since : 1.8


GstGL.GLVideoAllocationParams.copy_data

def GstGL.GLVideoAllocationParams.copy_data (self, dest_vid):
    #python wrapper for 'gst_gl_video_allocation_params_copy_data'

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.

Parameters:

destination GstGL.GLVideoAllocationParams to copy into

Since : 1.8


gst_gl_video_allocation_params_free_data

gst_gl_video_allocation_params_free_data (GstGLVideoAllocationParams * params)

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

Parameters:

Since : 1.8


GstGL.GLVideoAllocationParams.prototype.free_data

function GstGL.GLVideoAllocationParams.prototype.free_data(): {
    // javascript wrapper for 'gst_gl_video_allocation_params_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.

Since : 1.8


GstGL.GLVideoAllocationParams.free_data

def GstGL.GLVideoAllocationParams.free_data (self):
    #python wrapper for 'gst_gl_video_allocation_params_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.

Since : 1.8


gst_gl_video_allocation_params_init_full

gboolean
gst_gl_video_allocation_params_init_full (GstGLVideoAllocationParams * params,
                                          gsize struct_size,
                                          guint alloc_flags,
                                          GstGLAllocationParamsCopyFunc copy,
                                          GstGLAllocationParamsFreeFunc free,
                                          GstGLContext * context,
                                          const GstAllocationParams* alloc_params,
                                          const GstVideoInfo* v_info,
                                          guint plane,
                                          const GstVideoAlignment* valign,
                                          GstGLTextureTarget target,
                                          GstGLFormat tex_format,
                                          gpointer wrapped_data,
                                          gpointer gl_handle,
                                          gpointer user_data,
                                          GDestroyNotify notify)

Intended for subclass usage

Parameters:

params

a GstGLVideoAllocationParams to initialize

struct_size

the size of the struct in params

alloc_flags

some allocation flags

copy

a copy function

free

a free function

context

a GstGLContext

alloc_params ( [allow-none])

the GstAllocationParams for wrapped_data

v_info

the GstVideoInfo for wrapped_data

plane

the video plane wrapped_data represents

valign ( [allow-none])

any GstVideoAlignment applied to symem mappings of wrapped_data

target

the GstGLTextureTarget

tex_format

the GstGLFormat

wrapped_data ( [allow-none])

the optional data pointer to wrap

gl_handle

the optional OpenGL handle to wrap or 0

user_data ( [allow-none])

user data to call notify with

notify ( [allow-none])

a GDestroyNotify

Returns

initializes params with the parameters specified

Since : 1.8


Functions

gst_is_gl_memory

gboolean
gst_is_gl_memory (GstMemory* mem)

Parameters:

mem

a GstMemory

Returns

whether the memory at mem is a GstGLMemory

Since : 1.4


GstGL.prototype.is_gl_memory

function GstGL.prototype.is_gl_memory(mem: Gst.Memory): {
    // javascript wrapper for 'gst_is_gl_memory'
}

Parameters:

mem (Gst.Memory)

a GstMemory

Returns (Number)

whether the memory at mem is a GstGL.GLMemory

Since : 1.4


GstGL.is_gl_memory

def GstGL.is_gl_memory (mem):
    #python wrapper for 'gst_is_gl_memory'

Parameters:

mem (Gst.Memory)

a GstMemory

Returns (bool)

whether the memory at mem is a GstGL.GLMemory

Since : 1.4


Function Macros

GST_GL_MEMORY_ALLOCATOR_CAST

#define GST_GL_MEMORY_ALLOCATOR_CAST(obj)            ((GstGLMemoryAllocator *)(obj))

GST_GL_MEMORY_CAST

#define GST_GL_MEMORY_CAST(obj) ((GstGLMemory *) obj)

Constants

GST_CAPS_FEATURE_MEMORY_GL_MEMORY

#define GST_CAPS_FEATURE_MEMORY_GL_MEMORY "memory:GLMemory"

Name of the caps feature for indicating the use of GstGLMemory


GstGL.CAPS_FEATURE_MEMORY_GL_MEMORY

Name of the caps feature for indicating the use of GstGL.GLMemory


GstGL.CAPS_FEATURE_MEMORY_GL_MEMORY

Name of the caps feature for indicating the use of GstGL.GLMemory


GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_VIDEO

#define GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_VIDEO (1 << 3)

GL allocation flag indicating the allocation of 2D video frames


GstGL.GL_ALLOCATION_PARAMS_ALLOC_FLAG_VIDEO

GL allocation flag indicating the allocation of 2D video frames


GstGL.GL_ALLOCATION_PARAMS_ALLOC_FLAG_VIDEO

GL allocation flag indicating the allocation of 2D video frames


GST_GL_MEMORY_ALLOCATOR_NAME

#define GST_GL_MEMORY_ALLOCATOR_NAME   "GLMemory"

The name of the GL memory allocator


GstGL.GL_MEMORY_ALLOCATOR_NAME

The name of the GL memory allocator


GstGL.GL_MEMORY_ALLOCATOR_NAME

The name of the GL memory allocator


GST_GL_MEMORY_VIDEO_EXT_FORMATS

#define GST_GL_MEMORY_VIDEO_EXT_FORMATS \
    ", RGBA64_LE, BGR10A2_LE, RGB10A2_LE, P010_10LE, P012_LE, P016_LE, Y212_LE, Y412_LE" \
    ", A444_16LE, A422_16LE, A420_16LE, A444_12LE, A422_12LE, A420_12LE, A420_10LE" \
    ", A422_10LE, A444_10LE, I420_12LE, I420_10LE"

GST_GL_MEMORY_VIDEO_FORMATS_STR

#define GST_GL_MEMORY_VIDEO_FORMATS_STR \
    "{ RGBA, BGRA, RGBx, BGRx, ARGB, ABGR, xRGB, xBGR, GBRA, GBR, RGBP, BGRP, RGB, BGR, RGB16, BGR16, " \
    "AYUV, VUYA, A444, A422, Y410, I420, YV12, NV12, NV21, NV16, NV61, YUY2, UYVY, Y210, Y41B, " \
    "Y42B, Y444, GRAY8, GRAY16_LE, GRAY16_BE, ARGB64, A420, AV12, NV12_16L32S, NV12_4L4, RBGA" \
    GST_GL_MEMORY_VIDEO_EXT_FORMATS "}"

List of video formats that are supported by GstGLMemory


GstGL.GL_MEMORY_VIDEO_FORMATS_STR

List of video formats that are supported by GstGL.GLMemory


GstGL.GL_MEMORY_VIDEO_FORMATS_STR

List of video formats that are supported by GstGL.GLMemory


GST_TYPE_GL_MEMORY

#define GST_TYPE_GL_MEMORY (gst_gl_memory_get_type())

Since : 1.20

deprecated : 1.22: This type has no use.


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