OpenGL Formats: GStreamer Bad Plugins 1.0 Library Reference Manual

OpenGL Formats

Functions

guint	gst_gl_format_type_n_bytes ()
guint	gst_gl_texture_type_n_bytes ()
guint	gst_gl_format_from_gl_texture_type ()
GstVideoGLTextureType	gst_gl_texture_type_from_format ()
guint	gst_gl_sized_gl_format_from_gl_format_type ()
GstGLTextureTarget	gst_gl_texture_target_from_string ()
const gchar *	gst_gl_texture_target_to_string ()
guint	gst_gl_texture_target_to_gl ()
GstGLTextureTarget	gst_gl_texture_target_from_gl ()
const gchar *	gst_gl_texture_target_to_buffer_pool_option ()

Types and Values

enum	GstGLTextureTarget
#define	GST_GL_TEXTURE_TARGET_2D_STR
#define	GST_GL_TEXTURE_TARGET_RECTANGLE_STR
#define	GST_GL_TEXTURE_TARGET_EXTERNAL_OES_STR
#define	GST_BUFFER_POOL_OPTION_GL_TEXTURE_TARGET_2D
#define	GST_BUFFER_POOL_OPTION_GL_TEXTURE_TARGET_RECTANGLE
#define	GST_BUFFER_POOL_OPTION_GL_TEXTURE_TARGET_EXTERNAL_OES

Description

Functions

gst_gl_format_type_n_bytes ()

guint
gst_gl_format_type_n_bytes (guint format,
                            guint type);

Parameters

format	the OpenGL format, `GL_RGBA`, `GL_LUMINANCE`, etc
type	the OpenGL type, `GL_UNSIGNED_BYTE`, `GL_FLOAT`, etc

Returns

the number of bytes the specified format , type combination takes per pixel

gst_gl_texture_type_n_bytes ()

guint
gst_gl_texture_type_n_bytes (GstVideoGLTextureType tex_format);

Parameters

tex_format

a GstVideoGLTextureType

Returns

the number of bytes tex_format used per pixel

gst_gl_format_from_gl_texture_type ()

guint
gst_gl_format_from_gl_texture_type (GstVideoGLTextureType tex_format);

Parameters

tex_format

a GstVideoGLTextureType

Returns

the OpenGL format specified by tex_format

gst_gl_texture_type_from_format ()

GstVideoGLTextureType
gst_gl_texture_type_from_format (GstGLContext *context,
                                 GstVideoFormat v_format,
                                 guint plane);

Parameters

context	a GstGLContext
v_format	a GstVideoFormat
plane	the plane number (starting from 0)

Returns

the GstVideoGLTextureType for the specified format and plane that can be allocated using context

gst_gl_sized_gl_format_from_gl_format_type ()

guint
gst_gl_sized_gl_format_from_gl_format_type
                               (GstGLContext *context,
                                guint format,
                                guint type);

Parameters

context	a GstGLContext
format	an OpenGL format, `GL_RGBA`, `GL_LUMINANCE`, etc
type	an OpenGL type, `GL_UNSIGNED_BYTE`, `GL_FLOAT`, etc

Returns

the sized internal format specified by format and type that can be used in context

gst_gl_texture_target_from_string ()

GstGLTextureTarget
gst_gl_texture_target_from_string (const gchar *str);

gst_gl_texture_target_to_string ()

const gchar *
gst_gl_texture_target_to_string (GstGLTextureTarget target);

Parameters

str

a string equivalant to one of the GST_GL_TEXTURE_TARGET_*_STR values

Returns

the GstGLTextureTarget represented by str or GST_GL_TEXTURE_TARGET_NONE

gst_gl_texture_target_to_gl ()

guint
gst_gl_texture_target_to_gl (GstGLTextureTarget target);

Parameters

target

a GstGLTextureTarget

Returns

the OpenGL value for binding the target with glBindTexture() and similar functions or 0

gst_gl_texture_target_from_gl ()

GstGLTextureTarget
gst_gl_texture_target_from_gl (guint target);

Parameters

target

an OpenGL texture binding target

Returns

the GstGLTextureTarget that's equiavalant to target or GST_GL_TEXTURE_TARGET_NONE

gst_gl_texture_target_to_buffer_pool_option ()

const gchar *
gst_gl_texture_target_to_buffer_pool_option
                               (GstGLTextureTarget target);

Parameters

target

a GstGLTextureTarget

Returns

a string representing the GstBufferPoolOption specified by target

Types and Values

enum GstGLTextureTarget

Members

GST_GL_TEXTURE_TARGET_NONE	no texture target
GST_GL_TEXTURE_TARGET_2D	2D texture target
GST_GL_TEXTURE_TARGET_RECTANGLE	rectangle texture target
GST_GL_TEXTURE_TARGET_EXTERNAL_OES	external oes texture target

Since: 1.8

GST_GL_TEXTURE_TARGET_2D_STR

#define GST_GL_TEXTURE_TARGET_2D_STR "2D"

String used for GST_GL_TEXTURE_TARGET_2D in things like caps values

GST_GL_TEXTURE_TARGET_RECTANGLE_STR

#define GST_GL_TEXTURE_TARGET_RECTANGLE_STR "rectangle"

String used for GST_GL_TEXTURE_TARGET_RECTANGLE in things like caps values

GST_GL_TEXTURE_TARGET_EXTERNAL_OES_STR

#define GST_GL_TEXTURE_TARGET_EXTERNAL_OES_STR "external-oes"

String used for GST_GL_TEXTURE_TARGET_EXTERNAL_OES in things like caps values

GST_BUFFER_POOL_OPTION_GL_TEXTURE_TARGET_2D

#define GST_BUFFER_POOL_OPTION_GL_TEXTURE_TARGET_2D "GstBufferPoolOptionGLTextureTarget2D"

String used for GST_GL_TEXTURE_TARGET_2D as a GstBufferPool pool option

GST_BUFFER_POOL_OPTION_GL_TEXTURE_TARGET_RECTANGLE

#define GST_BUFFER_POOL_OPTION_GL_TEXTURE_TARGET_RECTANGLE "GstBufferPoolOptionGLTextureTargetRectangle"

String used for GST_GL_TEXTURE_TARGET_RECTANGLE as a GstBufferPool pool option

GST_BUFFER_POOL_OPTION_GL_TEXTURE_TARGET_EXTERNAL_OES

#define GST_BUFFER_POOL_OPTION_GL_TEXTURE_TARGET_EXTERNAL_OES "GstBufferPoolOptionGLTextureTargetExternalOES"

String used for GST_GL_TEXTURE_TARGET_ESTERNAL_OES as a GstBufferPool pool option