OpenGL Formats

OpenGL Formats

Synopsis

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
guint               gst_gl_format_type_n_bytes          (guint format,
                                                         guint type);
guint               gst_gl_texture_type_n_bytes         (GstVideoGLTextureType tex_format);
guint               gst_gl_format_from_gl_texture_type  (GstVideoGLTextureType tex_format);
GstVideoGLTextureType gst_gl_texture_type_from_format   (GstGLContext *context,
                                                         GstVideoFormat v_format,
                                                         guint plane);
guint               gst_gl_sized_gl_format_from_gl_format_type
                                                        (GstGLContext *context,
                                                         guint format,
                                                         guint type);
GstGLTextureTarget  gst_gl_texture_target_from_string   (const gchar *str);
const gchar *       gst_gl_texture_target_to_string     (GstGLTextureTarget target);
guint               gst_gl_texture_target_to_gl         (GstGLTextureTarget target);
GstGLTextureTarget  gst_gl_texture_target_from_gl       (guint target);
const gchar *       gst_gl_texture_target_to_buffer_pool_option
                                                        (GstGLTextureTarget target);

Description

Details

enum GstGLTextureTarget

typedef enum {
  GST_GL_TEXTURE_TARGET_NONE,
  GST_GL_TEXTURE_TARGET_2D,
  GST_GL_TEXTURE_TARGET_RECTANGLE,
  GST_GL_TEXTURE_TARGET_EXTERNAL_OES,
} GstGLTextureTarget;

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


gst_gl_format_type_n_bytes ()

guint               gst_gl_format_type_n_bytes          (guint format,
                                                         guint type);

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);

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);

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);

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);

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);

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);

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);

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);

target :

a GstGLTextureTarget

Returns :

a string representing the GstBufferPoolOption specified by target