GstGLBuffer

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

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

GstGLBuffer

Represents information about a GL buffer

Members

mem (GstGLBaseMemory) –

the parent object

id (guint) –

the buffer id for this memory

target (guint) –

the OpenGL target of this texture for binding purposes

usage_hints (guint) –

the OpenGL usage hints this buffer was created with

GstGL.GLBuffer

Represents information about a GL buffer

Members

mem (GstGL.GLBaseMemory) –

the parent object

id (Number) –

the buffer id for this memory

target (Number) –

the OpenGL target of this texture for binding purposes

usage_hints (Number) –

the OpenGL usage hints this buffer was created with

GstGL.GLBuffer

Represents information about a GL buffer

Members

mem (GstGL.GLBaseMemory) –

the parent object

id (int) –

the buffer id for this memory

target (int) –

the OpenGL target of this texture for binding purposes

usage_hints (int) –

the OpenGL usage hints this buffer was created with

Functions

gst_gl_buffer_init_once

gst_gl_buffer_init_once ()

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

Since : 1.8

GstGL.prototype.gl_buffer_init_once

function GstGL.prototype.gl_buffer_init_once(): {
    // javascript wrapper for 'gst_gl_buffer_init_once'
}

Initializes the GL Buffer allocator. It is safe to call this function multiple times. This must be called before any other GstGL.GLBuffer operation.

Since : 1.8

GstGL.gl_buffer_init_once

def GstGL.gl_buffer_init_once ():
    #python wrapper for 'gst_gl_buffer_init_once'

Initializes the GL Buffer allocator. It is safe to call this function multiple times. This must be called before any other GstGL.GLBuffer operation.

Since : 1.8

GstGLBufferAllocationParams

Members

parent (GstGLAllocationParams) –

parent object

gl_target (guint) –

the OpenGL target to bind the buffer to

gl_usage (guint) –

the OpenGL usage hint to create the buffer with

GstGL.GLBufferAllocationParams

Members

parent (GstGL.GLAllocationParams) –

parent object

gl_target (Number) –

the OpenGL target to bind the buffer to

gl_usage (Number) –

the OpenGL usage hint to create the buffer with

GstGL.GLBufferAllocationParams

Members

parent (GstGL.GLAllocationParams) –

parent object

gl_target (int) –

the OpenGL target to bind the buffer to

gl_usage (int) –

the OpenGL usage hint to create the buffer with

Constructors

gst_gl_buffer_allocation_params_new

GstGLBufferAllocationParams *
gst_gl_buffer_allocation_params_new (GstGLContext * context,
                                     gsize alloc_size,
                                     const GstAllocationParams * alloc_params,
                                     guint gl_target,
                                     guint gl_usage)

Parameters:

context –

a GstGLContext

alloc_size –

the size in bytes to allocate

alloc_params ( [allow-none]) –

the GstAllocationParams for tex_id

gl_target –

the OpenGL target to allocate

gl_usage –

the OpenGL usage hint to allocate with

Returns –

a new GstGLBufferAllocationParams for allocating OpenGL buffer objects

Since : 1.8

GstGL.GLBufferAllocationParams.prototype.new

function GstGL.GLBufferAllocationParams.prototype.new(context: GstGL.GLContext, alloc_size: Number, alloc_params: Gst.AllocationParams, gl_target: Number, gl_usage: Number): {
    // javascript wrapper for 'gst_gl_buffer_allocation_params_new'
}

Parameters:

context (GstGL.GLContext) –

a GstGL.GLContext

alloc_size (Number) –

the size in bytes to allocate

alloc_params (Gst.AllocationParams) –

the Gst.AllocationParams for tex_id

gl_target (Number) –

the OpenGL target to allocate

gl_usage (Number) –

the OpenGL usage hint to allocate with

Returns (GstGL.GLBufferAllocationParams) –

a new GstGL.GLBufferAllocationParams for allocating OpenGL buffer objects

Since : 1.8

GstGL.GLBufferAllocationParams.new

def GstGL.GLBufferAllocationParams.new (context, alloc_size, alloc_params, gl_target, gl_usage):
    #python wrapper for 'gst_gl_buffer_allocation_params_new'

Parameters:

context (GstGL.GLContext) –

a GstGL.GLContext

alloc_size (int) –

the size in bytes to allocate

alloc_params (Gst.AllocationParams) –

the Gst.AllocationParams for tex_id

gl_target (int) –

the OpenGL target to allocate

gl_usage (int) –

the OpenGL usage hint to allocate with

Returns (GstGL.GLBufferAllocationParams) –

a new GstGL.GLBufferAllocationParams for allocating OpenGL buffer objects

Since : 1.8

GstGLBufferAllocator

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

Opaque GstGLBufferAllocator struct

Members

parent (GstGLBaseMemoryAllocator) –

No description available

Class structure

GstGLBufferAllocatorClass

The GstGLBufferAllocatorClass only contains private data

Fields

parent_class (GstGLBaseMemoryAllocatorClass) –

No description available

GstGL.GLBufferAllocatorClass

The GstGL.GLBufferAllocatorClass only contains private data

Attributes

parent_class (GstGL.GLBaseMemoryAllocatorClass) –

No description available

GstGL.GLBufferAllocatorClass

The GstGL.GLBufferAllocatorClass only contains private data

Attributes

parent_class (GstGL.GLBaseMemoryAllocatorClass) –

No description available

GstGL.GLBufferAllocator

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

Opaque GstGL.GLBufferAllocator struct

Members

parent (GstGL.GLBaseMemoryAllocator) –

No description available

GstGL.GLBufferAllocator

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

Opaque GstGL.GLBufferAllocator struct

Members

parent (GstGL.GLBaseMemoryAllocator) –

No description available

Functions

gst_is_gl_buffer

gboolean
gst_is_gl_buffer (GstMemory * mem)

Parameters:

mem –

a GstMemory

Returns –

whether the memory at mem is a GstGLBuffer

Since : 1.8

GstGL.prototype.is_gl_buffer

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

Parameters:

mem (Gst.Memory) –

a Gst.Memory

Returns (Number) –

whether the memory at mem is a GstGL.GLBuffer

Since : 1.8

GstGL.is_gl_buffer

def GstGL.is_gl_buffer (mem):
    #python wrapper for 'gst_is_gl_buffer'

Parameters:

mem (Gst.Memory) –

a Gst.Memory

Returns (bool) –

whether the memory at mem is a GstGL.GLBuffer

Since : 1.8

Function Macros

GST_GL_BUFFER_ALLOCATOR_CAST

#define GST_GL_BUFFER_ALLOCATOR_CAST(obj)            ((GstGLBufferAllocator *)(obj))

Constants

GST_CAPS_FEATURE_MEMORY_GL_BUFFER

#define GST_CAPS_FEATURE_MEMORY_GL_BUFFER "memory:GLBuffer"

Name of the caps feature indicating the use of GL buffers

GstGL.CAPS_FEATURE_MEMORY_GL_BUFFER

Name of the caps feature indicating the use of GL buffers

GstGL.CAPS_FEATURE_MEMORY_GL_BUFFER

Name of the caps feature indicating the use of GL buffers

GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_BUFFER

#define GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_BUFFER (1 << 4)

GL allocation flag indicating the allocation of a GL buffer.

GstGL.GL_ALLOCATION_PARAMS_ALLOC_FLAG_BUFFER

GL allocation flag indicating the allocation of a GL buffer.

GstGL.GL_ALLOCATION_PARAMS_ALLOC_FLAG_BUFFER

GL allocation flag indicating the allocation of a GL buffer.

GST_GL_BUFFER_ALLOCATOR_NAME

#define GST_GL_BUFFER_ALLOCATOR_NAME   "GLBuffer"

The name of the GL buffer allocator

GstGL.GL_BUFFER_ALLOCATOR_NAME

The name of the GL buffer allocator

GstGL.GL_BUFFER_ALLOCATOR_NAME

The name of the GL buffer allocator

GST_TYPE_GL_BUFFER

#define GST_TYPE_GL_BUFFER (gst_gl_buffer_get_type())

Since : 1.20

deprecated : 1.22: This type has no use.

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