GstGLRenderBuffer: GStreamer Base Plugins 1.0 Library Reference Manual

GstGLRenderBuffer

GstGLRenderBuffer — memory subclass for GL renderbuffer objects

Functions

GstGLRenderbufferAllocationParams *	gst_gl_renderbuffer_allocation_params_new ()
GstGLRenderbufferAllocationParams *	gst_gl_renderbuffer_allocation_params_new_wrapped ()
gint	gst_gl_renderbuffer_get_height ()
guint	gst_gl_renderbuffer_get_id ()
GstGLFormat	gst_gl_renderbuffer_get_format ()
gint	gst_gl_renderbuffer_get_width ()
void	gst_gl_renderbuffer_init_once ()
gboolean	gst_is_gl_renderbuffer ()

Types and Values

	GstGLRenderbufferAllocator
	GstGLRenderbufferAllocatorClass
#define	GST_GL_RENDERBUFFER_ALLOCATOR_NAME

Object Hierarchy

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

Includes

#include <gst/gl/gl.h>

Description

GstGLRenderbuffer is a GstGLBaseMemory subclass providing support for OpenGL renderbuffers.

GstGLRenderbuffer is created or wrapped through gst_gl_base_memory_alloc() with GstGLRenderbufferAllocationParams.

Functions

gst_gl_renderbuffer_allocation_params_new ()

GstGLRenderbufferAllocationParams *
gst_gl_renderbuffer_allocation_params_new
                               (GstGLContext *context,
                                GstAllocationParams *alloc_params,
                                GstGLFormat renderbuffer_format,
                                guint width,
                                guint height);

Parameters

context	a GstGLContext
alloc_params	the GstAllocationParams for sysmem mappings of the texture.	[allow-none]
width	the width of the renderbuffer
height	the height of the renderbuffer
renderbuffer_format	the GstGLFormat for the created textures

Returns

a new GstGLRenderbufferAllocationParams for allocating GstGLRenderbuffer's

Since: 1.10

gst_gl_renderbuffer_allocation_params_new_wrapped ()

GstGLRenderbufferAllocationParams *
gst_gl_renderbuffer_allocation_params_new_wrapped
                               (GstGLContext *context,
                                GstAllocationParams *alloc_params,
                                GstGLFormat renderbuffer_format,
                                guint width,
                                guint height,
                                gpointer gl_handle,
                                gpointer user_data,
                                GDestroyNotify notify);

Parameters

context	a GstGLContext
alloc_params	the GstAllocationParams for `tex_id` .	[allow-none]
width	the width of the renderbuffer
height	the height of the renderbuffer
renderbuffer_format	the GstGLFormat for `tex_id`
gl_handle	the GL handle to wrap
user_data	user data to call `notify` with.	[allow-none]
notify	a GDestroyNotify.	[allow-none]

Returns

a new GstGLRenderbufferAllocationParams for wrapping gl_handle as a renderbuffer

Since: 1.10

gst_gl_renderbuffer_get_height ()

gint
gst_gl_renderbuffer_get_height (GstGLRenderbuffer *gl_mem);

Parameters

gl_mem

a GstGLRenderbuffer

Returns

the configured height of gl_mem

Since: 1.10

gst_gl_renderbuffer_get_id ()

guint
gst_gl_renderbuffer_get_id (GstGLRenderbuffer *gl_mem);

Parameters

gl_mem

a GstGLRenderbuffer

Returns

the OpenGL renderbuffer handle of gl_mem

Since: 1.10

gst_gl_renderbuffer_get_format ()

GstGLFormat
gst_gl_renderbuffer_get_format (GstGLRenderbuffer *gl_mem);

Parameters

gl_mem

a GstGLRenderbuffer

Returns

the GstGLFormat of gl_mem

Since: 1.12

gst_gl_renderbuffer_get_width ()

gint
gst_gl_renderbuffer_get_width (GstGLRenderbuffer *gl_mem);

Parameters

gl_mem

a GstGLRenderbuffer

Returns

the configured width of gl_mem

Since: 1.10

gst_gl_renderbuffer_init_once ()

void
gst_gl_renderbuffer_init_once (void);

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

Since: 1.10

gst_is_gl_renderbuffer ()

gboolean
gst_is_gl_renderbuffer (GstMemory *mem);

Parameters

mem

a GstMemory

Returns

whether the memory at mem is a GstGLRenderbuffer

Since: 1.10

Types and Values

GstGLRenderbufferAllocator

typedef struct _GstGLRenderbufferAllocator GstGLRenderbufferAllocator;

Opaque GstGLRenderbufferAllocator struct

GstGLRenderbufferAllocatorClass

typedef struct {
  GstGLBaseMemoryAllocatorClass             parent_class;
} GstGLRenderbufferAllocatorClass;

The GstGLRenderbufferAllocatorClass only contains private data

GST_GL_RENDERBUFFER_ALLOCATOR_NAME

#define GST_GL_RENDERBUFFER_ALLOCATOR_NAME   "GLRenderbuffer"

The name of the GL renderbuffer allocator