GstEGLImage

GstEGLImage represents and holds an EGLImage handle.

A GstEGLImage can be created from a dmabuf with gst_egl_image_from_dmabuf, or gst_egl_image_from_dmabuf_direct, or GstGLMemoryEGL provides a GstAllocator to allocate EGLImage's bound to and OpenGL texture.

GstEGLImage

Opaque GstEGLImage struct.


GstEGLImage

Opaque GstEGLImage struct.


GstEGLImage

Opaque GstEGLImage struct.


Constructors

gst_egl_image_new_wrapped

GstEGLImage *
gst_egl_image_new_wrapped (GstGLContext * context,
                           gpointer image,
                           GstGLFormat format,
                           gpointer user_data,
                           GstEGLImageDestroyNotify user_data_destroy)

Parameters:

context

a GstGLContext (must be an EGL context)

image

the image to wrap

format

the GstGLFormat

user_data

user data

user_data_destroy ( [destroy user_data] [scope async] ) –

called when user_data is no longer needed

Returns

a new GstEGLImage wrapping image


GstGLEGL.EGLImage.prototype.new_wrapped

function GstGLEGL.EGLImage.prototype.new_wrapped(context: GstGL.GLContext, image: Object, format: GstGL.GLFormat, user_data_destroy: GstGLEGL.EGLImageDestroyNotify): {
    // javascript wrapper for 'gst_egl_image_new_wrapped'
}

Parameters:

context ( GstGL.GLContext ) –

a GstGL.GLContext (must be an EGL context)

image ( Object ) –

the image to wrap

format ( GstGL.GLFormat ) –

the GstGL.GLFormat

user_data_destroy ( GstGLEGL.EGLImageDestroyNotify ) –

called when user_data is no longer needed

Returns ( GstGLEGL.EGLImage ) –

a new GstGLEGL.EGLImage wrapping image


GstGLEGL.EGLImage.new_wrapped

def GstGLEGL.EGLImage.new_wrapped (context, image, format, user_data_destroy):
    #python wrapper for 'gst_egl_image_new_wrapped'

Parameters:

context ( GstGL.GLContext ) –

a GstGL.GLContext (must be an EGL context)

image ( object ) –

the image to wrap

format ( GstGL.GLFormat ) –

the GstGL.GLFormat

user_data_destroy ( GstGLEGL.EGLImageDestroyNotify ) –

called when user_data is no longer needed

Returns ( GstGLEGL.EGLImage ) –

a new GstGLEGL.EGLImage wrapping image


Methods

gst_egl_image_export_dmabuf

gboolean
gst_egl_image_export_dmabuf (GstEGLImage * image,
                             int* fd,
                             gint * stride,
                             gsize * offset)

Parameters:

image
No description available
fd
No description available
stride
No description available
offset
No description available
Returns
No description available

GstGLEGL.EGLImage.prototype.export_dmabuf

function GstGLEGL.EGLImage.prototype.export_dmabuf(fd: Number, stride: Number, offset: Number): {
    // javascript wrapper for 'gst_egl_image_export_dmabuf'
}

Parameters:

image ( GstGLEGL.EGLImage ) –
No description available
fd ( Number ) –
No description available
stride ( Number ) –
No description available
offset ( Number ) –
No description available
Returns ( Number ) –
No description available

GstGLEGL.EGLImage.export_dmabuf

def GstGLEGL.EGLImage.export_dmabuf (self, fd, stride, offset):
    #python wrapper for 'gst_egl_image_export_dmabuf'

Parameters:

image ( GstGLEGL.EGLImage ) –
No description available
fd ( int ) –
No description available
stride ( int ) –
No description available
offset ( int ) –
No description available
Returns ( bool ) –
No description available

gst_egl_image_get_image

gpointer
gst_egl_image_get_image (GstEGLImage * image)

Parameters:

image

a GstEGLImage

Returns

the EGLImage of image


GstGLEGL.EGLImage.prototype.get_image

function GstGLEGL.EGLImage.prototype.get_image(): {
    // javascript wrapper for 'gst_egl_image_get_image'
}

Parameters:

Returns ( Object ) –

the EGLImage of image


GstGLEGL.EGLImage.get_image

def GstGLEGL.EGLImage.get_image (self):
    #python wrapper for 'gst_egl_image_get_image'

Parameters:

Returns ( object ) –

the EGLImage of image


Functions

gst_egl_image_from_dmabuf

GstEGLImage *
gst_egl_image_from_dmabuf (GstGLContext * context,
                           gint dmabuf,
                           const GstVideoInfo * in_info,
                           gint plane,
                           gsize offset)

Creates an EGL image that imports the dmabuf FD. The dmabuf data is passed as RGBA data. Shaders later take this "RGBA" data and convert it from its true format (described by in_info) to actual RGBA output. For example, with I420, three EGL images are created, one for each plane, each EGL image with a single-channel R format. With NV12, two EGL images are created, one with R format, one with RG format etc.

Parameters:

context

a GstGLContext (must be an EGL context)

dmabuf

the DMA-Buf file descriptor

in_info

the GstVideoInfo in dmabuf

plane

the plane in in_info to create and GstEGLImage for

offset

the byte-offset in the data

Returns

a GstEGLImage wrapping dmabuf or NULL on failure


GstGLEGL.EGLImage.prototype.from_dmabuf

function GstGLEGL.EGLImage.prototype.from_dmabuf(context: GstGL.GLContext, dmabuf: Number, in_info: GstVideo.VideoInfo, plane: Number, offset: Number): {
    // javascript wrapper for 'gst_egl_image_from_dmabuf'
}

Creates an EGL image that imports the dmabuf FD. The dmabuf data is passed as RGBA data. Shaders later take this "RGBA" data and convert it from its true format (described by in_info) to actual RGBA output. For example, with I420, three EGL images are created, one for each plane, each EGL image with a single-channel R format. With NV12, two EGL images are created, one with R format, one with RG format etc.

Parameters:

context ( GstGL.GLContext ) –

a GstGL.GLContext (must be an EGL context)

dmabuf ( Number ) –

the DMA-Buf file descriptor

in_info ( GstVideo.VideoInfo ) –

the GstVideo.VideoInfo in dmabuf

plane ( Number ) –

the plane in in_info to create and GstGLEGL.EGLImage for

offset ( Number ) –

the byte-offset in the data

Returns ( GstGLEGL.EGLImage ) –

a GstGLEGL.EGLImage wrapping dmabuf or null on failure


GstGLEGL.EGLImage.from_dmabuf

def GstGLEGL.EGLImage.from_dmabuf (context, dmabuf, in_info, plane, offset):
    #python wrapper for 'gst_egl_image_from_dmabuf'

Creates an EGL image that imports the dmabuf FD. The dmabuf data is passed as RGBA data. Shaders later take this "RGBA" data and convert it from its true format (described by in_info) to actual RGBA output. For example, with I420, three EGL images are created, one for each plane, each EGL image with a single-channel R format. With NV12, two EGL images are created, one with R format, one with RG format etc.

Parameters:

context ( GstGL.GLContext ) –

a GstGL.GLContext (must be an EGL context)

dmabuf ( int ) –

the DMA-Buf file descriptor

in_info ( GstVideo.VideoInfo ) –

the GstVideo.VideoInfo in dmabuf

plane ( int ) –

the plane in in_info to create and GstGLEGL.EGLImage for

offset ( int ) –

the byte-offset in the data

Returns ( GstGLEGL.EGLImage ) –

a GstGLEGL.EGLImage wrapping dmabuf or None on failure


gst_egl_image_from_dmabuf_direct

GstEGLImage *
gst_egl_image_from_dmabuf_direct (GstGLContext * context,
                                  gint * fd,
                                  const gsize * offset,
                                  const GstVideoInfo * in_info)

Creates an EGL image that imports the dmabuf FD. The dmabuf data is passed directly as the format described in in_info. This is useful if the hardware is capable of performing color space conversions internally. The appropriate DRM format is picked, and the EGL image is created with this DRM format.

Another notable difference to gst_egl_image_from_dmabuf is that this function creates one EGL image for all planes, not one for a single plane.

Parameters:

context

a GstGLContext (must be an EGL context)

fd

Array of DMABuf file descriptors

offset

Array of offsets, relative to the DMABuf

in_info

the GstVideoInfo

Returns

a GstEGLImage wrapping dmabuf or NULL on failure


GstGLEGL.EGLImage.prototype.from_dmabuf_direct

function GstGLEGL.EGLImage.prototype.from_dmabuf_direct(context: GstGL.GLContext, fd: Number, offset: Number, in_info: GstVideo.VideoInfo): {
    // javascript wrapper for 'gst_egl_image_from_dmabuf_direct'
}

Creates an EGL image that imports the dmabuf FD. The dmabuf data is passed directly as the format described in in_info. This is useful if the hardware is capable of performing color space conversions internally. The appropriate DRM format is picked, and the EGL image is created with this DRM format.

Another notable difference to GstGLEGL.EGLImage.prototype.from_dmabuf is that this function creates one EGL image for all planes, not one for a single plane.

Parameters:

context ( GstGL.GLContext ) –

a GstGL.GLContext (must be an EGL context)

fd ( Number ) –

Array of DMABuf file descriptors

offset ( Number ) –

Array of offsets, relative to the DMABuf

Returns ( GstGLEGL.EGLImage ) –

a GstGLEGL.EGLImage wrapping dmabuf or null on failure


GstGLEGL.EGLImage.from_dmabuf_direct

def GstGLEGL.EGLImage.from_dmabuf_direct (context, fd, offset, in_info):
    #python wrapper for 'gst_egl_image_from_dmabuf_direct'

Creates an EGL image that imports the dmabuf FD. The dmabuf data is passed directly as the format described in in_info. This is useful if the hardware is capable of performing color space conversions internally. The appropriate DRM format is picked, and the EGL image is created with this DRM format.

Another notable difference to GstGLEGL.EGLImage.from_dmabuf is that this function creates one EGL image for all planes, not one for a single plane.

Parameters:

context ( GstGL.GLContext ) –

a GstGL.GLContext (must be an EGL context)

fd ( int ) –

Array of DMABuf file descriptors

offset ( int ) –

Array of offsets, relative to the DMABuf

Returns ( GstGLEGL.EGLImage ) –

a GstGLEGL.EGLImage wrapping dmabuf or None on failure


gst_egl_image_from_dmabuf_direct_target

GstEGLImage *
gst_egl_image_from_dmabuf_direct_target (GstGLContext * context,
                                         gint * fd,
                                         const gsize * offset,
                                         const GstVideoInfo * in_info,
                                         GstGLTextureTarget target)

Creates an EGL image that imports the dmabuf FD. The dmabuf data is passed directly as the format described in in_info. This is useful if the hardware is capable of performing color space conversions internally. The appropriate DRM format is picked, and the EGL image is created with this DRM format.

Another notable difference to gst_egl_image_from_dmabuf is that this function creates one EGL image for all planes, not one for a single plane.

Parameters:

context

a GstGLContext (must be an EGL context)

fd

Array of DMABuf file descriptors

offset

Array of offsets, relative to the DMABuf

in_info

the GstVideoInfo

target

GL texture target this GstEGLImage is intended for

Returns

a GstEGLImage wrapping dmabuf or NULL on failure

Since : 1.18


GstGLEGL.EGLImage.prototype.from_dmabuf_direct_target

function GstGLEGL.EGLImage.prototype.from_dmabuf_direct_target(context: GstGL.GLContext, fd: Number, offset: Number, in_info: GstVideo.VideoInfo, target: GstGL.GLTextureTarget): {
    // javascript wrapper for 'gst_egl_image_from_dmabuf_direct_target'
}

Creates an EGL image that imports the dmabuf FD. The dmabuf data is passed directly as the format described in in_info. This is useful if the hardware is capable of performing color space conversions internally. The appropriate DRM format is picked, and the EGL image is created with this DRM format.

Another notable difference to GstGLEGL.EGLImage.prototype.from_dmabuf is that this function creates one EGL image for all planes, not one for a single plane.

Parameters:

context ( GstGL.GLContext ) –

a GstGL.GLContext (must be an EGL context)

fd ( Number ) –

Array of DMABuf file descriptors

offset ( Number ) –

Array of offsets, relative to the DMABuf

target ( GstGL.GLTextureTarget ) –

GL texture target this GstEGLImage is intended for

Returns ( GstGLEGL.EGLImage ) –

a GstGLEGL.EGLImage wrapping dmabuf or null on failure

Since : 1.18


GstGLEGL.EGLImage.from_dmabuf_direct_target

def GstGLEGL.EGLImage.from_dmabuf_direct_target (context, fd, offset, in_info, target):
    #python wrapper for 'gst_egl_image_from_dmabuf_direct_target'

Creates an EGL image that imports the dmabuf FD. The dmabuf data is passed directly as the format described in in_info. This is useful if the hardware is capable of performing color space conversions internally. The appropriate DRM format is picked, and the EGL image is created with this DRM format.

Another notable difference to GstGLEGL.EGLImage.from_dmabuf is that this function creates one EGL image for all planes, not one for a single plane.

Parameters:

context ( GstGL.GLContext ) –

a GstGL.GLContext (must be an EGL context)

fd ( int ) –

Array of DMABuf file descriptors

offset ( int ) –

Array of offsets, relative to the DMABuf

target ( GstGL.GLTextureTarget ) –

GL texture target this GstEGLImage is intended for

Returns ( GstGLEGL.EGLImage ) –

a GstGLEGL.EGLImage wrapping dmabuf or None on failure

Since : 1.18


gst_egl_image_from_texture

GstEGLImage *
gst_egl_image_from_texture (GstGLContext * context,
                            GstGLMemory * gl_mem,
                            guintptr * attribs)

Parameters:

context

a GstGLContext (must be an EGL context)

gl_mem

a GstGLMemory

attribs

additional attributes to add to the eglCreateImage() call.

Returns ( [transfer: full] ) –

a GstEGLImage wrapping gl_mem or NULL on failure


GstGLEGL.EGLImage.prototype.from_texture

function GstGLEGL.EGLImage.prototype.from_texture(context: GstGL.GLContext, gl_mem: GstGL.GLMemory, attribs: Number): {
    // javascript wrapper for 'gst_egl_image_from_texture'
}

Parameters:

context ( GstGL.GLContext ) –

a GstGL.GLContext (must be an EGL context)

gl_mem ( GstGL.GLMemory ) –

a GstGL.GLMemory

attribs ( Number ) –

additional attributes to add to the eglCreateImage() call.

Returns ( GstGLEGL.EGLImage ) –

a GstGLEGL.EGLImage wrapping gl_mem or null on failure


GstGLEGL.EGLImage.from_texture

def GstGLEGL.EGLImage.from_texture (context, gl_mem, attribs):
    #python wrapper for 'gst_egl_image_from_texture'

Parameters:

context ( GstGL.GLContext ) –

a GstGL.GLContext (must be an EGL context)

gl_mem ( GstGL.GLMemory ) –

a GstGL.GLMemory

attribs ( int ) –

additional attributes to add to the eglCreateImage() call.

Returns ( GstGLEGL.EGLImage ) –

a GstGLEGL.EGLImage wrapping gl_mem or None on failure


Function Macros

GST_EGL_IMAGE

#define GST_EGL_IMAGE(obj)                         (GST_EGL_IMAGE_CAST(obj))

GST_EGL_IMAGE_CAST

#define GST_EGL_IMAGE_CAST(obj)                    ((GstEGLImage *)(obj))

GST_IS_EGL_IMAGE

#define GST_IS_EGL_IMAGE(obj)                      (GST_IS_MINI_OBJECT_TYPE(obj, GST_TYPE_EGL_IMAGE))

Constants

GST_TYPE_EGL_IMAGE

#define GST_TYPE_EGL_IMAGE                         (gst_egl_image_get_type())

Callbacks

GstEGLImageDestroyNotify

(*GstEGLImageDestroyNotify) (GstEGLImage * image,
                             gpointer data)

Function to be called when the GstEGLImage is destroyed. It should free the associated EGLImage if necessary

Parameters:

image

a GstEGLImage

data

user data passed to gst_egl_image_new_wrapped


GstGLEGL.EGLImageDestroyNotify

function GstGLEGL.EGLImageDestroyNotify(image: GstGLEGL.EGLImage, data: Object): {
    // javascript wrapper for 'GstEGLImageDestroyNotify'
}

Function to be called when the GstEGLImage is destroyed. It should free the associated EGLImage if necessary

Parameters:

data ( Object ) –

user data passed to GstGLEGL.EGLImage.prototype.new_wrapped


GstGLEGL.EGLImageDestroyNotify

def GstGLEGL.EGLImageDestroyNotify (image, data):
    #python wrapper for 'GstEGLImageDestroyNotify'

Function to be called when the GstEGLImage is destroyed. It should free the associated EGLImage if necessary

Parameters:

data ( object ) –

user data passed to GstGLEGL.EGLImage.new_wrapped


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