GstGLBaseMemory

GstGLBaseMemory is a GstMemory subclass providing the basis of support for the mapping of GL buffers.

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

GstGLAllocationParams

Members

struct_size (gsize) –

the size of the struct (including and subclass data)

a GstGLAllocationParamsCopyFunc

a GstGLAllocationParamsFreeFunc

alloc_flags (guint) –

allocation flags

alloc_size (gsize) –

the allocation size

alloc_params (GstAllocationParams *) –

the GstAllocationParams

context (GstGLContext *) –

a GstGLContext

notify (GDestroyNotify) –

a GDestroyNotify

user_data (gpointer) –

argument to call notify with

wrapped_data (gpointer) –

the wrapped data pointer

gl_handle (gpointer) –

the wrapped OpenGL handle

GstGL.GLAllocationParams

Members

struct_size (Number) –

the size of the struct (including and subclass data)

a GstGL.GLAllocationParamsCopyFunc

a GstGL.GLAllocationParamsFreeFunc

alloc_flags (Number) –

allocation flags

alloc_size (Number) –

the allocation size

alloc_params (Gst.AllocationParams) –

the Gst.AllocationParams

context (GstGL.GLContext) –

a GstGL.GLContext

notify (GLib.DestroyNotify) –

a GLib.DestroyNotify

user_data (Object) –

argument to call notify with

wrapped_data (Object) –

the wrapped data pointer

gl_handle (Object) –

the wrapped OpenGL handle

GstGL.GLAllocationParams

Members

struct_size (int) –

the size of the struct (including and subclass data)

a GstGL.GLAllocationParamsCopyFunc

a GstGL.GLAllocationParamsFreeFunc

alloc_flags (int) –

allocation flags

alloc_size (int) –

the allocation size

alloc_params (Gst.AllocationParams) –

the Gst.AllocationParams

context (GstGL.GLContext) –

a GstGL.GLContext

notify (GLib.DestroyNotify) –

a GLib.DestroyNotify

user_data (object) –

argument to call notify with

wrapped_data (object) –

the wrapped data pointer

gl_handle (object) –

the wrapped OpenGL handle

Methods

gst_gl_allocation_params_copy 

GstGLAllocationParams *
gst_gl_allocation_params_copy (GstGLAllocationParams * src)

Parameters:

src –

the GstGLAllocationParams to initialize

Returns ( [transfer: full]) –

a copy of the GstGLAllocationParams specified by src

Since : 1.8

GstGL.GLAllocationParams.prototype.copy 

function GstGL.GLAllocationParams.prototype.copy(): {
    // javascript wrapper for 'gst_gl_allocation_params_copy'
}

Parameters:

the GstGL.GLAllocationParams to initialize

Returns (GstGL.GLAllocationParams) –

a copy of the GstGL.GLAllocationParams specified by src

Since : 1.8

GstGL.GLAllocationParams.copy 

def GstGL.GLAllocationParams.copy (self):
    #python wrapper for 'gst_gl_allocation_params_copy'

Parameters:

the GstGL.GLAllocationParams to initialize

Returns (GstGL.GLAllocationParams) –

a copy of the GstGL.GLAllocationParams specified by src

Since : 1.8

gst_gl_allocation_params_copy_data 

gst_gl_allocation_params_copy_data (GstGLAllocationParams * src,
                                    GstGLAllocationParams * dest)

Copies the dynamically allocated data from src to dest. Direct subclasses should call this function in their own overridden copy function.

Parameters:

src –

the source GstGLAllocationParams

dest –

the destination GstGLAllocationParams

Since : 1.8

GstGL.GLAllocationParams.prototype.copy_data 

function GstGL.GLAllocationParams.prototype.copy_data(dest: GstGL.GLAllocationParams): {
    // javascript wrapper for 'gst_gl_allocation_params_copy_data'
}

Copies the dynamically allocated data from src to dest. Direct subclasses should call this function in their own overridden copy function.

Parameters:

the source GstGL.GLAllocationParams

the destination GstGL.GLAllocationParams

Since : 1.8

GstGL.GLAllocationParams.copy_data 

def GstGL.GLAllocationParams.copy_data (self, dest):
    #python wrapper for 'gst_gl_allocation_params_copy_data'

Copies the dynamically allocated data from src to dest. Direct subclasses should call this function in their own overridden copy function.

Parameters:

the source GstGL.GLAllocationParams

the destination GstGL.GLAllocationParams

Since : 1.8

gst_gl_allocation_params_free 

gst_gl_allocation_params_free (GstGLAllocationParams * params)

Frees the GstGLAllocationParams and all associated data.

Parameters:

params –

the GstGLAllocationParams to initialize

Since : 1.8

GstGL.GLAllocationParams.prototype.free 

function GstGL.GLAllocationParams.prototype.free(): {
    // javascript wrapper for 'gst_gl_allocation_params_free'
}

Frees the GstGL.GLAllocationParams and all associated data.

Parameters:

the GstGL.GLAllocationParams to initialize

Since : 1.8

GstGL.GLAllocationParams.free 

def GstGL.GLAllocationParams.free (self):
    #python wrapper for 'gst_gl_allocation_params_free'

Frees the GstGL.GLAllocationParams and all associated data.

Parameters:

the GstGL.GLAllocationParams to initialize

Since : 1.8

gst_gl_allocation_params_free_data 

gst_gl_allocation_params_free_data (GstGLAllocationParams * params)

Frees the dynamically allocated data in params. Direct subclasses should call this function in their own overridden free function.

Parameters:

params –

the source GstGLAllocationParams

Since : 1.8

GstGL.GLAllocationParams.prototype.free_data 

function GstGL.GLAllocationParams.prototype.free_data(): {
    // javascript wrapper for 'gst_gl_allocation_params_free_data'
}

Frees the dynamically allocated data in params. Direct subclasses should call this function in their own overridden free function.

Parameters:

the source GstGL.GLAllocationParams

Since : 1.8

GstGL.GLAllocationParams.free_data 

def GstGL.GLAllocationParams.free_data (self):
    #python wrapper for 'gst_gl_allocation_params_free_data'

Frees the dynamically allocated data in params. Direct subclasses should call this function in their own overridden free function.

Parameters:

the source GstGL.GLAllocationParams

Since : 1.8

gst_gl_allocation_params_init 

gboolean
gst_gl_allocation_params_init (GstGLAllocationParams * params,
                               gsize struct_size,
                               guint alloc_flags,
                               GstGLAllocationParamsCopyFunc copy,
                               GstGLAllocationParamsFreeFunc free,
                               GstGLContext * context,
                               gsize alloc_size,
                               const GstAllocationParams * alloc_params,
                               gpointer wrapped_data,
                               gpointer gl_handle,
                               gpointer user_data,
                               GDestroyNotify notify)

notify will be called once for each allocated memory using these params when freeing the memory.

Parameters:

params –

the GstGLAllocationParams to initialize

struct_size –

the struct size of the implementation

alloc_flags –

some alloc flags

copy –

a copy function

free –

a free function

context ( [transfer: none]) –

a GstGLContext

alloc_size –

the number of bytes to allocate.

alloc_params ( [transfer: none][allow-none]) –

a GstAllocationParams to apply

wrapped_data ( [transfer: none][allow-none]) –

a sysmem data pointer to initialize the allocation with

gl_handle ( [transfer: none]) –

a GL handle to initialize the allocation with

user_data ( [transfer: none][allow-none]) –

user data to call notify with

notify ( [allow-none]) –

a GDestroyNotify

Returns –

whether the parameters could be initialized

Since : 1.8

GstGLBaseMemory

Represents information about a GL memory object

Members

mem (GstMemory) –

the parent object

context (GstGLContext *) –

the GstGLContext to use for GL operations

lock (GMutex) –
No description available
map_flags (GstMapFlags) –
No description available
map_count (gint) –
No description available
gl_map_count (gint) –
No description available
data (gpointer) –
No description available
query (GstGLQuery *) –
No description available

GstGL.GLBaseMemory

Represents information about a GL memory object

Members

mem (Gst.Memory) –

the parent object

context (GstGL.GLContext) –

the GstGL.GLContext to use for GL operations

lock (GLib.Mutex) –
No description available
map_flags (Gst.MapFlags) –
No description available
map_count (Number) –
No description available
gl_map_count (Number) –
No description available
data (Object) –
No description available
query (GstGL.GLQuery) –
No description available

GstGL.GLBaseMemory

Represents information about a GL memory object

Members

mem (Gst.Memory) –

the parent object

context (GstGL.GLContext) –

the GstGL.GLContext to use for GL operations

lock (GLib.Mutex) –
No description available
map_flags (Gst.MapFlags) –
No description available
map_count (int) –
No description available
gl_map_count (int) –
No description available
data (object) –
No description available
query (GstGL.GLQuery) –
No description available

Methods

gst_gl_base_memory_alloc_data 

gboolean
gst_gl_base_memory_alloc_data (GstGLBaseMemory * gl_mem)

Note: only intended for subclass usage to allocate the system memory buffer on demand. If there is already a non-NULL data pointer in gl_mem->data, then this function imply returns TRUE.

Parameters:

gl_mem –

a GstGLBaseMemory

Returns –

whether the system memory could be allocated

GstGL.GLBaseMemory.prototype.alloc_data 

function GstGL.GLBaseMemory.prototype.alloc_data(): {
    // javascript wrapper for 'gst_gl_base_memory_alloc_data'
}

Note: only intended for subclass usage to allocate the system memory buffer on demand. If there is already a non-NULL data pointer in gl_mem->data, then this function imply returns TRUE.

Parameters:

gl_mem (GstGL.GLBaseMemory) –

a GstGL.GLBaseMemory

Returns (Number) –

whether the system memory could be allocated

GstGL.GLBaseMemory.alloc_data 

def GstGL.GLBaseMemory.alloc_data (self):
    #python wrapper for 'gst_gl_base_memory_alloc_data'

Note: only intended for subclass usage to allocate the system memory buffer on demand. If there is already a non-NULL data pointer in gl_mem->data, then this function imply returns TRUE.

Parameters:

gl_mem (GstGL.GLBaseMemory) –

a GstGL.GLBaseMemory

Returns (bool) –

whether the system memory could be allocated

gst_gl_base_memory_init 

gst_gl_base_memory_init (GstGLBaseMemory * mem,
                         GstAllocator * allocator,
                         GstMemory * parent,
                         GstGLContext * context,
                         const GstAllocationParams * params,
                         gsize size,
                         gpointer user_data,
                         GDestroyNotify notify)

Initializes mem with the required parameters

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

params ( [allow-none]) –

the GstAllocationParams to initialize with

size –

the number of bytes to be allocated

user_data ( [allow-none]) –

user data to call notify with

notify ( [allow-none]) –

a GDestroyNotify

Since : 1.8

GstGL.GLBaseMemory.prototype.init 

function GstGL.GLBaseMemory.prototype.init(allocator: Gst.Allocator, parent: Gst.Memory, context: GstGL.GLContext, params: Gst.AllocationParams, size: Number, user_data: Object, notify: GLib.DestroyNotify): {
    // javascript wrapper for 'gst_gl_base_memory_init'
}

Initializes mem with the required parameters

Parameters:

mem (GstGL.GLBaseMemory) –

the GstGL.GLBaseMemory to initialize

allocator (Gst.Allocator) –

the Gst.Allocator to initialize with

parent (Gst.Memory) –

the parent Gst.Memory to initialize with

context (GstGL.GLContext) –

the GstGL.GLContext to initialize with

params (Gst.AllocationParams) –

the GstAllocationParams to initialize with

size (Number) –

the number of bytes to be allocated

user_data (Object) –

user data to call notify with

notify (GLib.DestroyNotify) –

a GLib.DestroyNotify

Since : 1.8

GstGL.GLBaseMemory.init 

def GstGL.GLBaseMemory.init (self, allocator, parent, context, params, size, user_data, notify):
    #python wrapper for 'gst_gl_base_memory_init'

Initializes mem with the required parameters

Parameters:

mem (GstGL.GLBaseMemory) –

the GstGL.GLBaseMemory to initialize

allocator (Gst.Allocator) –

the Gst.Allocator to initialize with

parent (Gst.Memory) –

the parent Gst.Memory to initialize with

context (GstGL.GLContext) –

the GstGL.GLContext to initialize with

params (Gst.AllocationParams) –

the GstAllocationParams to initialize with

size (int) –

the number of bytes to be allocated

user_data (object) –

user data to call notify with

notify (GLib.DestroyNotify) –

a GLib.DestroyNotify

Since : 1.8

gst_gl_base_memory_memcpy 

gboolean
gst_gl_base_memory_memcpy (GstGLBaseMemory * src,
                           GstGLBaseMemory * dest,
                           gssize offset,
                           gssize size)

Parameters:

src –

the source GstGLBaseMemory

dest –

the destination GstGLBaseMemory

offset –

the offset to start at

size –

the number of bytes to copy

Returns –

whether the copy succeeded.

Since : 1.8

GstGL.GLBaseMemory.prototype.memcpy 

function GstGL.GLBaseMemory.prototype.memcpy(dest: GstGL.GLBaseMemory, offset: Number, size: Number): {
    // javascript wrapper for 'gst_gl_base_memory_memcpy'
}

Parameters:

src (GstGL.GLBaseMemory) –

the source GstGL.GLBaseMemory

dest (GstGL.GLBaseMemory) –

the destination GstGL.GLBaseMemory

offset (Number) –

the offset to start at

size (Number) –

the number of bytes to copy

Returns (Number) –

whether the copy succeeded.

Since : 1.8

GstGL.GLBaseMemory.memcpy 

def GstGL.GLBaseMemory.memcpy (self, dest, offset, size):
    #python wrapper for 'gst_gl_base_memory_memcpy'

Parameters:

src (GstGL.GLBaseMemory) –

the source GstGL.GLBaseMemory

dest (GstGL.GLBaseMemory) –

the destination GstGL.GLBaseMemory

offset (int) –

the offset to start at

size (int) –

the number of bytes to copy

Returns (bool) –

whether the copy succeeded.

Since : 1.8

Functions

gst_gl_base_memory_alloc 

GstGLBaseMemory *
gst_gl_base_memory_alloc (GstGLBaseMemoryAllocator * allocator,
                          GstGLAllocationParams * params)

Parameters:

allocator –

a GstGLBaseMemoryAllocator

params –

the GstGLAllocationParams to allocate the memory with

Returns ( [transfer: full][nullable]) –

a new GstGLBaseMemory from allocator with the requested params.

Since : 1.8

GstGL.prototype.gl_base_memory_alloc 

function GstGL.prototype.gl_base_memory_alloc(allocator: GstGL.GLBaseMemoryAllocator, params: GstGL.GLAllocationParams): {
    // javascript wrapper for 'gst_gl_base_memory_alloc'
}

Parameters:

allocator (GstGL.GLBaseMemoryAllocator) –

a GstGL.GLBaseMemoryAllocator

the GstGL.GLAllocationParams to allocate the memory with

Returns (GstGL.GLBaseMemory) –

a new GstGL.GLBaseMemory from allocator with the requested params.

Since : 1.8

GstGL.gl_base_memory_alloc 

def GstGL.gl_base_memory_alloc (allocator, params):
    #python wrapper for 'gst_gl_base_memory_alloc'

Parameters:

allocator (GstGL.GLBaseMemoryAllocator) –

a GstGL.GLBaseMemoryAllocator

the GstGL.GLAllocationParams to allocate the memory with

Returns (GstGL.GLBaseMemory) –

a new GstGL.GLBaseMemory from allocator with the requested params.

Since : 1.8

gst_gl_base_memory_init_once 

gst_gl_base_memory_init_once ()

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

Since : 1.8

GstGL.prototype.gl_base_memory_init_once 

function GstGL.prototype.gl_base_memory_init_once(): {
    // javascript wrapper for 'gst_gl_base_memory_init_once'
}

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

Since : 1.8

GstGL.gl_base_memory_init_once 

def GstGL.gl_base_memory_init_once ():
    #python wrapper for 'gst_gl_base_memory_init_once'

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

Since : 1.8

GstGLBaseMemoryAllocator 

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstAllocator
                ╰──GstGLBaseMemoryAllocator
                    ╰──GstGLBufferAllocator
                    ╰──GstGLMemoryAllocator
                    ╰──GstGLRenderbufferAllocator

Opaque GstGLBaseMemoryAllocator struct

Since : 1.8

Class structure

GstGLBaseMemoryAllocatorClass

Fields
parent_class (GstAllocatorClass) –

the parent class

a GstGLBaseMemoryAllocatorAllocFunction

a GstGLBaseMemoryAllocatorCreateFunction

a GstGLBaseMemoryAllocatorMapFunction

a GstGLBaseMemoryAllocatorUnmapFunction

a GstGLBaseMemoryAllocatorCopyFunction

a GstGLBaseMemoryAllocatorDestroyFunction

Since : 1.8

GstGL.GLBaseMemoryAllocatorClass

Attributes
parent_class (Gst.AllocatorClass) –

the parent class

a GstGL.GLBaseMemoryAllocatorAllocFunction

a GstGL.GLBaseMemoryAllocatorCreateFunction

a GstGL.GLBaseMemoryAllocatorMapFunction

a GstGL.GLBaseMemoryAllocatorUnmapFunction

a GstGL.GLBaseMemoryAllocatorCopyFunction

a GstGL.GLBaseMemoryAllocatorDestroyFunction

Since : 1.8

GstGL.GLBaseMemoryAllocatorClass

Attributes
parent_class (Gst.AllocatorClass) –

the parent class

a GstGL.GLBaseMemoryAllocatorAllocFunction

a GstGL.GLBaseMemoryAllocatorCreateFunction

a GstGL.GLBaseMemoryAllocatorMapFunction

a GstGL.GLBaseMemoryAllocatorUnmapFunction

a GstGL.GLBaseMemoryAllocatorCopyFunction

a GstGL.GLBaseMemoryAllocatorDestroyFunction

Since : 1.8

GstGL.GLBaseMemoryAllocator 

GObject.Object
    ╰──GObject.InitiallyUnowned
        ╰──Gst.Object
            ╰──Gst.Allocator
                ╰──GstGL.GLBaseMemoryAllocator
                    ╰──GstGL.GLBufferAllocator
                    ╰──GstGL.GLMemoryAllocator
                    ╰──GstGL.GLRenderbufferAllocator

Opaque GstGL.GLBaseMemoryAllocator struct

Since : 1.8

GstGL.GLBaseMemoryAllocator 

GObject.Object
    ╰──GObject.InitiallyUnowned
        ╰──Gst.Object
            ╰──Gst.Allocator
                ╰──GstGL.GLBaseMemoryAllocator
                    ╰──GstGL.GLBufferAllocator
                    ╰──GstGL.GLMemoryAllocator
                    ╰──GstGL.GLRenderbufferAllocator

Opaque GstGL.GLBaseMemoryAllocator struct

Since : 1.8

Virtual Methods

alloc 

GstGLBaseMemory *
alloc (GstGLBaseMemoryAllocator * allocator,
       GstGLAllocationParams * params)

a GstGLBaseMemoryAllocatorAllocFunction

Parameters:

allocator –
No description available
params –
No description available
Returns –
No description available

vfunc_alloc 

function vfunc_alloc(allocator: GstGL.GLBaseMemoryAllocator, params: GstGL.GLAllocationParams): {
    // javascript implementation of the 'alloc' virtual method
}

a GstGL.GLBaseMemoryAllocatorAllocFunction

Parameters:

allocator (GstGL.GLBaseMemoryAllocator) –
No description available
No description available
Returns (GstGL.GLBaseMemory) –
No description available

do_alloc 

def do_alloc (allocator, params):
    #python implementation of the 'alloc' virtual method

a GstGL.GLBaseMemoryAllocatorAllocFunction

Parameters:

allocator (GstGL.GLBaseMemoryAllocator) –
No description available
No description available
Returns (GstGL.GLBaseMemory) –
No description available

Functions

gst_gl_base_memory_error_quark 

GQuark
gst_gl_base_memory_error_quark ()
Returns –

the quark used for GstGLBaseMemory in GError's

GstGL.prototype.gl_base_memory_error_quark 

function GstGL.prototype.gl_base_memory_error_quark(): {
    // javascript wrapper for 'gst_gl_base_memory_error_quark'
}
Returns (GLib.Quark) –

the quark used for GstGL.GLBaseMemory in GLib.Error's

GstGL.gl_base_memory_error_quark 

def GstGL.gl_base_memory_error_quark ():
    #python wrapper for 'gst_gl_base_memory_error_quark'
Returns (GLib.Quark) –

the quark used for GstGL.GLBaseMemory in GLib.Error's

gst_is_gl_base_memory 

gboolean
gst_is_gl_base_memory (GstMemory * mem)

Parameters:

mem –

a GstMemory

Returns –

whether the memory at mem is a GstGLBaseMemory

Since : 1.8

GstGL.prototype.is_gl_base_memory 

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

Parameters:

mem (Gst.Memory) –

a Gst.Memory

Returns (Number) –

whether the memory at mem is a GstGL.GLBaseMemory

Since : 1.8

GstGL.is_gl_base_memory 

def GstGL.is_gl_base_memory (mem):
    #python wrapper for 'gst_is_gl_base_memory'

Parameters:

mem (Gst.Memory) –

a Gst.Memory

Returns (bool) –

whether the memory at mem is a GstGL.GLBaseMemory

Since : 1.8

Function Macros

GST_GL_BASE_MEMORY_ALLOCATOR_CAST 

#define GST_GL_BASE_MEMORY_ALLOCATOR_CAST(obj)            ((GstGLBaseMemoryAllocator *)(obj))

GST_GL_BASE_MEMORY_CAST 

#define GST_GL_BASE_MEMORY_CAST(mem) ((GstGLBaseMemory *)mem)

Enumerations

GstGLBaseMemoryError

Members
GST_GL_BASE_MEMORY_ERROR_FAILED (0) –

generic failure

GST_GL_BASE_MEMORY_ERROR_OLD_LIBS (1) –

the implementation is too old and doesn't implement enough features

GST_GL_BASE_MEMORY_ERROR_RESOURCE_UNAVAILABLE (2) –

a resource could not be found

GstGL.GLBaseMemoryError

Members
GstGL.GLBaseMemoryError.FAILED (0) –

generic failure

GstGL.GLBaseMemoryError.OLD_LIBS (1) –

the implementation is too old and doesn't implement enough features

GstGL.GLBaseMemoryError.RESOURCE_UNAVAILABLE (2) –

a resource could not be found

GstGL.GLBaseMemoryError

Members
GstGL.GLBaseMemoryError.FAILED (0) –

generic failure

GstGL.GLBaseMemoryError.OLD_LIBS (1) –

the implementation is too old and doesn't implement enough features

GstGL.GLBaseMemoryError.RESOURCE_UNAVAILABLE (2) –

a resource could not be found

GstGLBaseMemoryTransfer

Members
GST_GL_BASE_MEMORY_TRANSFER_NEED_DOWNLOAD (1048576) –

the texture needs downloading to the data pointer

GST_GL_BASE_MEMORY_TRANSFER_NEED_UPLOAD (2097152) –

the data pointer needs uploading to the texture

GstGL.GLBaseMemoryTransfer

Members
GstGL.GLBaseMemoryTransfer.DOWNLOAD (1048576) –

the texture needs downloading to the data pointer

GstGL.GLBaseMemoryTransfer.UPLOAD (2097152) –

the data pointer needs uploading to the texture

GstGL.GLBaseMemoryTransfer

Members
GstGL.GLBaseMemoryTransfer.DOWNLOAD (1048576) –

the texture needs downloading to the data pointer

GstGL.GLBaseMemoryTransfer.UPLOAD (2097152) –

the data pointer needs uploading to the texture

Constants

GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_ALLOC 

#define GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_ALLOC (1 << 0)

GL Allocation flag indicating that the implementation should allocate the necessary resources.

GstGL.GL_ALLOCATION_PARAMS_ALLOC_FLAG_ALLOC

GL Allocation flag indicating that the implementation should allocate the necessary resources.

GstGL.GL_ALLOCATION_PARAMS_ALLOC_FLAG_ALLOC

GL Allocation flag indicating that the implementation should allocate the necessary resources.

GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_USER 

#define GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_USER (1 << 16)

Values >= than GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_USER can be used for user-defined purposes.

GstGL.GL_ALLOCATION_PARAMS_ALLOC_FLAG_USER

Values >= than GstGL.GL_ALLOCATION_PARAMS_ALLOC_FLAG_USER can be used for user-defined purposes.

GstGL.GL_ALLOCATION_PARAMS_ALLOC_FLAG_USER

Values >= than GstGL.GL_ALLOCATION_PARAMS_ALLOC_FLAG_USER can be used for user-defined purposes.

GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_WRAP_GPU_HANDLE 

#define GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_WRAP_GPU_HANDLE (1 << 2)

GL Allocation flag for using the provided GPU handle as storage.

GstGL.GL_ALLOCATION_PARAMS_ALLOC_FLAG_WRAP_GPU_HANDLE

GL Allocation flag for using the provided GPU handle as storage.

GstGL.GL_ALLOCATION_PARAMS_ALLOC_FLAG_WRAP_GPU_HANDLE

GL Allocation flag for using the provided GPU handle as storage.

GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_WRAP_SYSMEM 

#define GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_WRAP_SYSMEM (1 << 1)

GL Allocation flag for using the provided system memory data as storage.

GstGL.GL_ALLOCATION_PARAMS_ALLOC_FLAG_WRAP_SYSMEM

GL Allocation flag for using the provided system memory data as storage.

GstGL.GL_ALLOCATION_PARAMS_ALLOC_FLAG_WRAP_SYSMEM

GL Allocation flag for using the provided system memory data as storage.

GST_GL_BASE_MEMORY_ALLOCATOR_NAME 

#define GST_GL_BASE_MEMORY_ALLOCATOR_NAME   "GLBaseMemory"

The name of the GL buffer allocator

Since : 1.8

GstGL.GL_BASE_MEMORY_ALLOCATOR_NAME

The name of the GL buffer allocator

Since : 1.8

GstGL.GL_BASE_MEMORY_ALLOCATOR_NAME

The name of the GL buffer allocator

Since : 1.8

GST_GL_BASE_MEMORY_ERROR 

#define GST_GL_BASE_MEMORY_ERROR (gst_gl_base_memory_error_quark ())

Error domain for GStreamer's GL memory module. Errors in this domain will be from the GstGLBaseMemoryError enumeration

GST_MAP_GL 

#define GST_MAP_GL (GST_MAP_FLAG_LAST << 1)

Flag indicating that we should map the GL object instead of to system memory.

Combining GST_MAP_GL with GST_MAP_WRITE has the same semantics as though you are writing to OpenGL. Conversely, combining GST_MAP_GL with GST_MAP_READ has the same semantics as though you are reading from OpenGL.

GstGL.MAP_GL

Flag indicating that we should map the GL object instead of to system memory.

Combining GstGL.MAP_GL with Gst.MapFlags.WRITE has the same semantics as though you are writing to OpenGL. Conversely, combining GstGL.MAP_GL with Gst.MapFlags.READ has the same semantics as though you are reading from OpenGL.

GstGL.MAP_GL

Flag indicating that we should map the GL object instead of to system memory.

Combining GstGL.MAP_GL with Gst.MapFlags.WRITE has the same semantics as though you are writing to OpenGL. Conversely, combining GstGL.MAP_GL with Gst.MapFlags.READ has the same semantics as though you are reading from OpenGL.

GST_TYPE_GL_BASE_MEMORY 

#define GST_TYPE_GL_BASE_MEMORY (gst_gl_base_memory_get_type())

deprecated : 1.22: This type has no use.

Callbacks

GstGLAllocationParamsCopyFunc 

(*GstGLAllocationParamsCopyFunc) (GstGLAllocationParams * src,
                                  GstGLAllocationParams * dest)

Copies the parameters from src into dest. The subclass must compose copy functions from the superclass.

Parameters:

src –

the source GstGLAllocationParams to copy from

dest –

the source GstGLAllocationParams to copy

GstGL.GLAllocationParamsCopyFunc 

function GstGL.GLAllocationParamsCopyFunc(src: GstGL.GLAllocationParams, dest: GstGL.GLAllocationParams): {
    // javascript wrapper for 'GstGLAllocationParamsCopyFunc'
}

Copies the parameters from src into dest. The subclass must compose copy functions from the superclass.

Parameters:

the source GstGL.GLAllocationParams to copy from

the source GstGL.GLAllocationParams to copy

GstGL.GLAllocationParamsCopyFunc 

def GstGL.GLAllocationParamsCopyFunc (src, dest):
    #python wrapper for 'GstGLAllocationParamsCopyFunc'

Copies the parameters from src into dest. The subclass must compose copy functions from the superclass.

Parameters:

the source GstGL.GLAllocationParams to copy from

the source GstGL.GLAllocationParams to copy

GstGLAllocationParamsFreeFunc 

(*GstGLAllocationParamsFreeFunc) (gpointer params)

Free any dynamically allocated data. The subclass must call the superclass' free.

Parameters:

params –

a GstGLAllocationParams

GstGL.GLAllocationParamsFreeFunc 

function GstGL.GLAllocationParamsFreeFunc(params: Object): {
    // javascript wrapper for 'GstGLAllocationParamsFreeFunc'
}

Free any dynamically allocated data. The subclass must call the superclass' free.

Parameters:

params (Object) –

a GstGL.GLAllocationParams

GstGL.GLAllocationParamsFreeFunc 

def GstGL.GLAllocationParamsFreeFunc (params):
    #python wrapper for 'GstGLAllocationParamsFreeFunc'

Free any dynamically allocated data. The subclass must call the superclass' free.

Parameters:

params (object) –

a GstGL.GLAllocationParams

GstGLBaseMemoryAllocatorAllocFunction 

GstGLBaseMemory *
(*GstGLBaseMemoryAllocatorAllocFunction) (GstGLBaseMemoryAllocator * allocator,
                                          GstGLAllocationParams * params)

Note: not called with a GL context current

Parameters:

allocator –

a GstGLBaseMemoryAllocator

params –

the GstGLAllocationParams to allocate the memory with

Returns ( [transfer: full][nullable]) –

a newly allocated GstGLBaseMemory from allocator and params

Since : 1.8

GstGL.GLBaseMemoryAllocatorAllocFunction 

function GstGL.GLBaseMemoryAllocatorAllocFunction(allocator: GstGL.GLBaseMemoryAllocator, params: GstGL.GLAllocationParams): {
    // javascript wrapper for 'GstGLBaseMemoryAllocatorAllocFunction'
}

Note: not called with a GL context current

Parameters:

allocator (GstGL.GLBaseMemoryAllocator) –

a GstGL.GLBaseMemoryAllocator

the GstGL.GLAllocationParams to allocate the memory with

Returns (GstGL.GLBaseMemory) –

a newly allocated GstGL.GLBaseMemory from allocator and params

Since : 1.8

GstGL.GLBaseMemoryAllocatorAllocFunction 

def GstGL.GLBaseMemoryAllocatorAllocFunction (allocator, params):
    #python wrapper for 'GstGLBaseMemoryAllocatorAllocFunction'

Note: not called with a GL context current

Parameters:

allocator (GstGL.GLBaseMemoryAllocator) –

a GstGL.GLBaseMemoryAllocator

the GstGL.GLAllocationParams to allocate the memory with

Returns (GstGL.GLBaseMemory) –

a newly allocated GstGL.GLBaseMemory from allocator and params

Since : 1.8

GstGLBaseMemoryAllocatorCopyFunction 

GstGLBaseMemory *
(*GstGLBaseMemoryAllocatorCopyFunction) (GstGLBaseMemory * mem,
                                         gssize offset,
                                         gssize size)

Also see gst_memory_copy;

Parameters:

mem –

a GstGLBaseMemory

offset –

the offset to copy from

size –

the number of bytes to copy

Returns ( [transfer: full][nullable]) –

the newly copied GstGLMemory or NULL

Since : 1.8

GstGL.GLBaseMemoryAllocatorCopyFunction 

function GstGL.GLBaseMemoryAllocatorCopyFunction(mem: GstGL.GLBaseMemory, offset: Number, size: Number): {
    // javascript wrapper for 'GstGLBaseMemoryAllocatorCopyFunction'
}

Also see Gst.Memory.prototype.copy;

Parameters:

mem (GstGL.GLBaseMemory) –

a GstGL.GLBaseMemory

offset (Number) –

the offset to copy from

size (Number) –

the number of bytes to copy

Returns (GstGL.GLBaseMemory) –

the newly copied GstGL.GLMemory or null

Since : 1.8

GstGL.GLBaseMemoryAllocatorCopyFunction 

def GstGL.GLBaseMemoryAllocatorCopyFunction (mem, offset, size):
    #python wrapper for 'GstGLBaseMemoryAllocatorCopyFunction'

Also see Gst.Memory.copy;

Parameters:

mem (GstGL.GLBaseMemory) –

a GstGL.GLBaseMemory

offset (int) –

the offset to copy from

size (int) –

the number of bytes to copy

Returns (GstGL.GLBaseMemory) –

the newly copied GstGL.GLMemory or None

Since : 1.8

GstGLBaseMemoryAllocatorCreateFunction 

gboolean
(*GstGLBaseMemoryAllocatorCreateFunction) (GstGLBaseMemory * mem,
                                           GError ** error)

As this virtual method is called with an OpenGL context current, use this function to allocate and OpenGL resources needed for your application

Parameters:

mem –

a GstGLBaseMemory

error –

a GError to use on failure

Returns –

whether the creation succeeded

Since : 1.8

GstGL.GLBaseMemoryAllocatorCreateFunction 

function GstGL.GLBaseMemoryAllocatorCreateFunction(mem: GstGL.GLBaseMemory): {
    // javascript wrapper for 'GstGLBaseMemoryAllocatorCreateFunction'
}

As this virtual method is called with an OpenGL context current, use this function to allocate and OpenGL resources needed for your application

Parameters:

mem (GstGL.GLBaseMemory) –

a GstGL.GLBaseMemory

Returns (Number) –

whether the creation succeeded

Since : 1.8

GstGL.GLBaseMemoryAllocatorCreateFunction 

def GstGL.GLBaseMemoryAllocatorCreateFunction (mem):
    #python wrapper for 'GstGLBaseMemoryAllocatorCreateFunction'

As this virtual method is called with an OpenGL context current, use this function to allocate and OpenGL resources needed for your application

Parameters:

mem (GstGL.GLBaseMemory) –

a GstGL.GLBaseMemory

Returns (bool) –

whether the creation succeeded

Since : 1.8

GstGLBaseMemoryAllocatorDestroyFunction 

(*GstGLBaseMemoryAllocatorDestroyFunction) (GstGLBaseMemory * mem)

Destroy any resources allocated throughout the lifetime of mem

Parameters:

mem –

a GstGLBaseMemory

Since : 1.8

GstGL.GLBaseMemoryAllocatorDestroyFunction 

function GstGL.GLBaseMemoryAllocatorDestroyFunction(mem: GstGL.GLBaseMemory): {
    // javascript wrapper for 'GstGLBaseMemoryAllocatorDestroyFunction'
}

Destroy any resources allocated throughout the lifetime of mem

Parameters:

mem (GstGL.GLBaseMemory) –

a GstGL.GLBaseMemory

Since : 1.8

GstGL.GLBaseMemoryAllocatorDestroyFunction 

def GstGL.GLBaseMemoryAllocatorDestroyFunction (mem):
    #python wrapper for 'GstGLBaseMemoryAllocatorDestroyFunction'

Destroy any resources allocated throughout the lifetime of mem

Parameters:

mem (GstGL.GLBaseMemory) –

a GstGL.GLBaseMemory

Since : 1.8

GstGLBaseMemoryAllocatorMapFunction 

gpointer
(*GstGLBaseMemoryAllocatorMapFunction) (GstGLBaseMemory * mem,
                                        GstMapInfo * info,
                                        gsize maxsize)

Also see gst_memory_map;

Parameters:

mem –

a GstGLBaseMemory

info –

a GstMapInfo to map with

maxsize –

the size to map

Returns –

the mapped pointer

Since : 1.8

GstGL.GLBaseMemoryAllocatorMapFunction 

function GstGL.GLBaseMemoryAllocatorMapFunction(mem: GstGL.GLBaseMemory, info: Gst.MapInfo, maxsize: Number): {
    // javascript wrapper for 'GstGLBaseMemoryAllocatorMapFunction'
}

Also see Gst.Memory.prototype.map;

Parameters:

mem (GstGL.GLBaseMemory) –

a GstGL.GLBaseMemory

info (Gst.MapInfo) –

a Gst.MapInfo to map with

maxsize (Number) –

the size to map

Returns (Object) –

the mapped pointer

Since : 1.8

GstGL.GLBaseMemoryAllocatorMapFunction 

def GstGL.GLBaseMemoryAllocatorMapFunction (mem, info, maxsize):
    #python wrapper for 'GstGLBaseMemoryAllocatorMapFunction'

Also see Gst.Memory.map;

Parameters:

mem (GstGL.GLBaseMemory) –

a GstGL.GLBaseMemory

info (Gst.MapInfo) –

a Gst.MapInfo to map with

maxsize (int) –

the size to map

Returns (object) –

the mapped pointer

Since : 1.8

GstGLBaseMemoryAllocatorUnmapFunction 

(*GstGLBaseMemoryAllocatorUnmapFunction) (GstGLBaseMemory * mem,
                                          GstMapInfo * info)

Also see gst_memory_unmap;

Parameters:

mem –

a GstGLBaseMemory

info –

a GstMapInfo to map with

Since : 1.8

GstGL.GLBaseMemoryAllocatorUnmapFunction 

function GstGL.GLBaseMemoryAllocatorUnmapFunction(mem: GstGL.GLBaseMemory, info: Gst.MapInfo): {
    // javascript wrapper for 'GstGLBaseMemoryAllocatorUnmapFunction'
}

Also see Gst.Memory.prototype.unmap;

Parameters:

mem (GstGL.GLBaseMemory) –

a GstGL.GLBaseMemory

info (Gst.MapInfo) –

a Gst.MapInfo to map with

Since : 1.8

GstGL.GLBaseMemoryAllocatorUnmapFunction 

def GstGL.GLBaseMemoryAllocatorUnmapFunction (mem, info):
    #python wrapper for 'GstGLBaseMemoryAllocatorUnmapFunction'

Also see Gst.Memory.unmap;

Parameters:

mem (GstGL.GLBaseMemory) –

a GstGL.GLBaseMemory

info (Gst.MapInfo) –

a Gst.MapInfo to map with

Since : 1.8

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