GstMeta for video

plane_height ( [out][arrayfixed-size=4]) –

array used to store the plane height

Returns –

TRUE if meta's alignment is valid and plane_height has been updated, FALSE otherwise

Since : 1.18

GstVideo.VideoMeta.prototype.get_plane_height

function GstVideo.VideoMeta.prototype.get_plane_height(): {
    // javascript wrapper for 'gst_video_meta_get_plane_height'
}

Compute the padded height of each plane from meta (padded size divided by stride).

It is not valid to call this function with a meta associated to a TILED video format.

Parameters:

meta (GstVideo.VideoMeta) –

Returns a tuple made of:

(Number ) –

true if meta's alignment is valid and plane_height has been updated, false otherwise

plane_height ([ Number ] ) –

true if meta's alignment is valid and plane_height has been updated, false otherwise

Since : 1.18

GstVideo.VideoMeta.get_plane_height

def GstVideo.VideoMeta.get_plane_height (self):
    #python wrapper for 'gst_video_meta_get_plane_height'

Compute the padded height of each plane from meta (padded size divided by stride).

It is not valid to call this function with a meta associated to a TILED video format.

Parameters:

meta (GstVideo.VideoMeta) –

Returns a tuple made of:

(bool ) –

True if meta's alignment is valid and plane_height has been updated, False otherwise

plane_height ([ int ] ) –

True if meta's alignment is valid and plane_height has been updated, False otherwise

Since : 1.18

gst_video_meta_get_plane_size

gboolean
gst_video_meta_get_plane_size (GstVideoMeta * meta,
                               gsize * plane_size)

Compute the size, in bytes, of each video plane described in meta including any padding and alignment constraint defined in meta->alignment.

Parameters:

meta –

plane_size ( [out][arrayfixed-size=4]) –

array used to store the plane sizes

Returns –

TRUE if meta's alignment is valid and plane_size has been updated, FALSE otherwise

Since : 1.18

GstVideo.VideoMeta.prototype.get_plane_size

function GstVideo.VideoMeta.prototype.get_plane_size(): {
    // javascript wrapper for 'gst_video_meta_get_plane_size'
}

Compute the size, in bytes, of each video plane described in meta including any padding and alignment constraint defined in meta->alignment.

Parameters:

meta (GstVideo.VideoMeta) –

Returns a tuple made of:

(Number ) –

true if meta's alignment is valid and plane_size has been updated, false otherwise

plane_size ([ Number ] ) –

true if meta's alignment is valid and plane_size has been updated, false otherwise

Since : 1.18

GstVideo.VideoMeta.get_plane_size

def GstVideo.VideoMeta.get_plane_size (self):
    #python wrapper for 'gst_video_meta_get_plane_size'

Compute the size, in bytes, of each video plane described in meta including any padding and alignment constraint defined in meta->alignment.

Parameters:

meta (GstVideo.VideoMeta) –

Returns a tuple made of:

(bool ) –

True if meta's alignment is valid and plane_size has been updated, False otherwise

plane_size ([ int ] ) –

True if meta's alignment is valid and plane_size has been updated, False otherwise

Since : 1.18

gst_video_meta_map

gboolean
gst_video_meta_map (GstVideoMeta * meta,
                    guint plane,
                    GstMapInfo * info,
                    gpointer * data,
                    gint * stride,
                    GstMapFlags flags)

Map the video plane with index plane in meta and return a pointer to the first byte of the plane and the stride of the plane.

Parameters:

meta –

plane –

a plane

info –

a GstMapInfo

data ( [out]) –

the data of plane

stride ( [out]) –

the stride of plane

flags –

GstMapFlags

Returns –

TRUE if the map operation was successful.

GstVideo.VideoMeta.prototype.map

function GstVideo.VideoMeta.prototype.map(plane: Number, info: Gst.MapInfo, flags: Gst.MapFlags): {
    // javascript wrapper for 'gst_video_meta_map'
}

Map the video plane with index plane in meta and return a pointer to the first byte of the plane and the stride of the plane.

Parameters:

meta (GstVideo.VideoMeta) –

plane (Number) –

a plane

info (Gst.MapInfo) –

flags (Gst.MapFlags) –

GstMapFlags

Returns a tuple made of:

(Number ) –

TRUE if the map operation was successful.

data (Object ) –

TRUE if the map operation was successful.

stride (Number ) –

TRUE if the map operation was successful.

GstVideo.VideoMeta.map

def GstVideo.VideoMeta.map (self, plane, info, flags):
    #python wrapper for 'gst_video_meta_map'

Map the video plane with index plane in meta and return a pointer to the first byte of the plane and the stride of the plane.

Parameters:

meta (GstVideo.VideoMeta) –

plane (int) –

a plane

info (Gst.MapInfo) –

flags (Gst.MapFlags) –

GstMapFlags

Returns a tuple made of:

(bool ) –

TRUE if the map operation was successful.

data (object ) –

TRUE if the map operation was successful.

stride (int ) –

TRUE if the map operation was successful.

gst_video_meta_set_alignment

gboolean
gst_video_meta_set_alignment (GstVideoMeta * meta,
                              GstVideoAlignment alignment)

Set the alignment of meta to alignment. This function checks that the paddings defined in alignment are compatible with the strides defined in meta and will fail to update if they are not.

Parameters:

meta –

alignment –

a GstVideoAlignment

Returns –

TRUE if alignment's meta has been updated, FALSE if not

Since : 1.18

GstVideo.VideoMeta.prototype.set_alignment

function GstVideo.VideoMeta.prototype.set_alignment(alignment: GstVideo.VideoAlignment): {
    // javascript wrapper for 'gst_video_meta_set_alignment'
}

Set the alignment of meta to alignment. This function checks that the paddings defined in alignment are compatible with the strides defined in meta and will fail to update if they are not.

Parameters:

meta (GstVideo.VideoMeta) –

a GstVideo.VideoAlignment

alignment (GstVideo.VideoAlignment) –

Returns (Number) –

true if alignment's meta has been updated, false if not

Since : 1.18

GstVideo.VideoMeta.set_alignment

def GstVideo.VideoMeta.set_alignment (self, alignment):
    #python wrapper for 'gst_video_meta_set_alignment'

Set the alignment of meta to alignment. This function checks that the paddings defined in alignment are compatible with the strides defined in meta and will fail to update if they are not.

Parameters:

meta (GstVideo.VideoMeta) –

a GstVideo.VideoAlignment

alignment (GstVideo.VideoAlignment) –

Returns (bool) –

True if alignment's meta has been updated, False if not

Since : 1.18

gst_video_meta_unmap

gboolean
gst_video_meta_unmap (GstVideoMeta * meta,
                      guint plane,
                      GstMapInfo * info)

Unmap a previously mapped plane with gst_video_meta_map.

Parameters:

meta –

plane –

a plane

info –

a GstMapInfo

Returns –

TRUE if the memory was successfully unmapped.

GstVideo.VideoMeta.prototype.unmap

function GstVideo.VideoMeta.prototype.unmap(plane: Number, info: Gst.MapInfo): {
    // javascript wrapper for 'gst_video_meta_unmap'
}

Unmap a previously mapped plane with GstVideo.VideoMeta.prototype.map.

Parameters:

meta (GstVideo.VideoMeta) –

plane (Number) –

a plane

info (Gst.MapInfo) –

Returns (Number) –

TRUE if the memory was successfully unmapped.

GstVideo.VideoMeta.unmap

def GstVideo.VideoMeta.unmap (self, plane, info):
    #python wrapper for 'gst_video_meta_unmap'

Unmap a previously mapped plane with GstVideo.VideoMeta.map.

Parameters:

meta (GstVideo.VideoMeta) –

plane (int) –

a plane

info (Gst.MapInfo) –

a GstVideoRegionOfInterestMeta

Returns (bool) –

TRUE if the memory was successfully unmapped.

Functions

gst_video_meta_get_info

const GstMetaInfo *
gst_video_meta_get_info ()

Returns –

No description available

GstVideo.prototype.video_meta_get_info

function GstVideo.prototype.video_meta_get_info(): {
    // javascript wrapper for 'gst_video_meta_get_info'
}

Returns (Gst.MetaInfo) –

No description available

GstVideo.video_meta_get_info

def GstVideo.video_meta_get_info ():
    #python wrapper for 'gst_video_meta_get_info'

Returns (Gst.MetaInfo) –

No description available

GstVideoMetaTransform

Extra data passed to a video transform GstMetaTransformFunction such as: "gst-video-scale".

Members

in_info (GstVideoInfo *) –

the input GstVideoInfo

out_info (GstVideoInfo *) –

the output GstVideoInfo

GstVideo.VideoMetaTransform

Extra data passed to a video transform Gst.MetaTransformFunction such as: "gst-video-scale".

Members

in_info (GstVideo.VideoInfo) –

the input GstVideo.VideoInfo

out_info (GstVideo.VideoInfo) –

the output GstVideo.VideoInfo

GstVideo.VideoMetaTransform

Extra data passed to a video transform Gst.MetaTransformFunction such as: "gst-video-scale".

Members

in_info (GstVideo.VideoInfo) –

the input GstVideo.VideoInfo

out_info (GstVideo.VideoInfo) –

the output GstVideo.VideoInfo

Functions

gst_video_meta_transform_scale_get_quark

GQuark
gst_video_meta_transform_scale_get_quark ()

Get the GQuark for the "gst-video-scale" metadata transform operation.

Returns –

a GQuark

GstVideo.prototype.video_meta_transform_scale_get_quark

function GstVideo.prototype.video_meta_transform_scale_get_quark(): {
    // javascript wrapper for 'gst_video_meta_transform_scale_get_quark'
}

Get the GLib.Quark for the "gst-video-scale" metadata transform operation.

Returns (GLib.Quark) –

a GLib.Quark

GstVideo.video_meta_transform_scale_get_quark

def GstVideo.video_meta_transform_scale_get_quark ():
    #python wrapper for 'gst_video_meta_transform_scale_get_quark'

Get the GLib.Quark for the "gst-video-scale" metadata transform operation.

Returns (GLib.Quark) –

a GLib.Quark

GstVideoRegionOfInterestMeta

Extra buffer metadata describing an image region of interest

Members

meta (GstMeta) –

parent GstMeta

roi_type (GQuark) –

GQuark describing the semantic of the Roi (f.i. a face, a pedestrian)

id (gint) –

identifier of this particular ROI

parent_id (gint) –

identifier of its parent ROI, used f.i. for ROI hierarchisation.

x (guint) –

x component of upper-left corner

y (guint) –

y component of upper-left corner

w (guint) –

bounding box width

h (guint) –

bounding box height

params (GList *) –

list of GstStructure containing element-specific params for downstream, see gst_video_region_of_interest_meta_add_param. (Since: 1.14)

GstVideo.VideoRegionOfInterestMeta

Extra buffer metadata describing an image region of interest

Members

meta (Gst.Meta) –

parent Gst.Meta

roi_type (GLib.Quark) –

GQuark describing the semantic of the Roi (f.i. a face, a pedestrian)

id (Number) –

identifier of this particular ROI

parent_id (Number) –

identifier of its parent ROI, used f.i. for ROI hierarchisation.

x (Number) –

x component of upper-left corner

y (Number) –

y component of upper-left corner

w (Number) –

bounding box width

h (Number) –

bounding box height

params ([ Object ]) –

list of Gst.Structure containing element-specific params for downstream, see GstVideo.VideoRegionOfInterestMeta.prototype.add_param. (Since: 1.14)

GstVideo.VideoRegionOfInterestMeta

Extra buffer metadata describing an image region of interest

Members

meta (Gst.Meta) –

parent Gst.Meta

roi_type (GLib.Quark) –

GQuark describing the semantic of the Roi (f.i. a face, a pedestrian)

id (int) –

identifier of this particular ROI

parent_id (int) –

identifier of its parent ROI, used f.i. for ROI hierarchisation.

x (int) –

x component of upper-left corner

y (int) –

y component of upper-left corner

w (int) –

bounding box width

h (int) –

bounding box height

params ([ object ]) –

list of Gst.Structure containing element-specific params for downstream, see GstVideo.VideoRegionOfInterestMeta.add_param. (Since: 1.14)

Methods

gst_video_region_of_interest_meta_add_param

gst_video_region_of_interest_meta_add_param (GstVideoRegionOfInterestMeta * meta,
                                             GstStructure * s)

Attach element-specific parameters to meta meant to be used by downstream elements which may handle this ROI. The name of s is used to identify the element these parameters are meant for.

This is typically used to tell encoders how they should encode this specific region. For example, a structure named "roi/x264enc" could be used to give the QP offsets this encoder should use when encoding the region described in meta. Multiple parameters can be defined for the same meta so different encoders can be supported by cross platform applications).

Parameters:

meta –

s ( [transfer: full]) –

a GstStructure

Since : 1.14

GstVideo.VideoRegionOfInterestMeta.prototype.add_param

function GstVideo.VideoRegionOfInterestMeta.prototype.add_param(s: Gst.Structure): {
    // javascript wrapper for 'gst_video_region_of_interest_meta_add_param'
}

Attach element-specific parameters to meta meant to be used by downstream elements which may handle this ROI. The name of s is used to identify the element these parameters are meant for.

Parameters:

meta (GstVideo.VideoRegionOfInterestMeta) –

s (Gst.Structure) –

Since : 1.14

GstVideo.VideoRegionOfInterestMeta.add_param

def GstVideo.VideoRegionOfInterestMeta.add_param (self, s):
    #python wrapper for 'gst_video_region_of_interest_meta_add_param'

Attach element-specific parameters to meta meant to be used by downstream elements which may handle this ROI. The name of s is used to identify the element these parameters are meant for.

Parameters:

meta (GstVideo.VideoRegionOfInterestMeta) –

s (Gst.Structure) –

a GstVideoRegionOfInterestMeta

Since : 1.14

gst_video_region_of_interest_meta_get_param

GstStructure *
gst_video_region_of_interest_meta_get_param (GstVideoRegionOfInterestMeta * meta,
                                             const gchar * name)

Retrieve the parameter for meta having name as structure name, or NULL if there is none.

Parameters:

meta –

name –

a name.

Returns ( [transfer: none][nullable]) –

a GstStructure

Since : 1.14 See also: gst_video_region_of_interest_meta_add_param()

GstVideo.VideoRegionOfInterestMeta.prototype.get_param

function GstVideo.VideoRegionOfInterestMeta.prototype.get_param(name: String): {
    // javascript wrapper for 'gst_video_region_of_interest_meta_get_param'
}

Retrieve the parameter for meta having name as structure name, or null if there is none.

Parameters:

meta (GstVideo.VideoRegionOfInterestMeta) –

name (String) –

a name.

Returns (Gst.Structure) –

Since : 1.14 See also: gst_video_region_of_interest_meta_add_param()

GstVideo.VideoRegionOfInterestMeta.get_param

def GstVideo.VideoRegionOfInterestMeta.get_param (self, name):
    #python wrapper for 'gst_video_region_of_interest_meta_get_param'

Retrieve the parameter for meta having name as structure name, or None if there is none.

Parameters:

meta (GstVideo.VideoRegionOfInterestMeta) –

name (str) –

a name.

Returns (Gst.Structure) –

Since : 1.14 See also: gst_video_region_of_interest_meta_add_param()

Functions

gst_video_region_of_interest_meta_get_info

const GstMetaInfo *
gst_video_region_of_interest_meta_get_info ()

Returns –

No description available

GstVideo.prototype.video_region_of_interest_meta_get_info

function GstVideo.prototype.video_region_of_interest_meta_get_info(): {
    // javascript wrapper for 'gst_video_region_of_interest_meta_get_info'
}

Returns (Gst.MetaInfo) –

No description available

GstVideo.video_region_of_interest_meta_get_info

def GstVideo.video_region_of_interest_meta_get_info ():
    #python wrapper for 'gst_video_region_of_interest_meta_get_info'

Returns (Gst.MetaInfo) –

No description available

GstVideoTimeCodeMeta

Extra buffer metadata describing the GstVideoTimeCode of the frame.

Each frame is assumed to have its own timecode, i.e. they are not automatically incremented/interpolated.

Members

meta (GstMeta) –

parent GstMeta

tc (GstVideoTimeCode) –

the GstVideoTimeCode to attach

Since : 1.10

GstVideo.VideoTimeCodeMeta

Extra buffer metadata describing the GstVideoTimeCode of the frame.

Each frame is assumed to have its own timecode, i.e. they are not automatically incremented/interpolated.

Members

meta (Gst.Meta) –

parent Gst.Meta

tc (GstVideo.VideoTimeCode) –

the GstVideoTimeCode to attach

Since : 1.10

GstVideo.VideoTimeCodeMeta

Extra buffer metadata describing the GstVideoTimeCode of the frame.

Each frame is assumed to have its own timecode, i.e. they are not automatically incremented/interpolated.

Members

meta (Gst.Meta) –

parent Gst.Meta

tc (GstVideo.VideoTimeCode) –

the GstVideoTimeCode to attach

Since : 1.10

Functions

gst_video_time_code_meta_get_info

const GstMetaInfo *
gst_video_time_code_meta_get_info ()

Returns –

No description available

GstVideo.prototype.video_time_code_meta_get_info

function GstVideo.prototype.video_time_code_meta_get_info(): {
    // javascript wrapper for 'gst_video_time_code_meta_get_info'
}

Returns (Gst.MetaInfo) –

No description available

GstVideo.video_time_code_meta_get_info

def GstVideo.video_time_code_meta_get_info ():
    #python wrapper for 'gst_video_time_code_meta_get_info'

Returns (Gst.MetaInfo) –

No description available

Functions

gst_buffer_add_video_gl_texture_upload_meta

GstVideoGLTextureUploadMeta *
gst_buffer_add_video_gl_texture_upload_meta (GstBuffer * buffer,
                                             GstVideoGLTextureOrientation texture_orientation,
                                             guint n_textures,
                                             GstVideoGLTextureType * texture_type,
                                             GstVideoGLTextureUpload upload,
                                             gpointer user_data,
                                             GBoxedCopyFunc user_data_copy,
                                             GBoxedFreeFunc user_data_free)

Attaches GstVideoGLTextureUploadMeta metadata to buffer with the given parameters.

Parameters:

buffer –

texture_orientation –

the GstVideoGLTextureOrientation

n_textures –

the number of textures

texture_type –

array of GstVideoGLTextureType

upload ( [scope call]) –

the function to upload the buffer to a specific texture ID

user_data –

user data for the implementor of upload

user_data_copy ( [scope call]) –

function to copy user_data

user_data_free ( [scope call]) –

function to free user_data

Returns ( [transfer: none]) –

the GstVideoGLTextureUploadMeta on buffer.

GstVideo.prototype.buffer_add_video_gl_texture_upload_meta

function GstVideo.prototype.buffer_add_video_gl_texture_upload_meta(buffer: Gst.Buffer, texture_orientation: GstVideo.VideoGLTextureOrientation, n_textures: Number, texture_type: GstVideo.VideoGLTextureType, upload: GstVideo.VideoGLTextureUpload, user_data: Object, user_data_copy: GObject.BoxedCopyFunc, user_data_free: GObject.BoxedFreeFunc): {
    // javascript wrapper for 'gst_buffer_add_video_gl_texture_upload_meta'
}

Attaches GstVideoGLTextureUploadMeta metadata to buffer with the given parameters.

Parameters:

buffer (Gst.Buffer) –

texture_orientation (GstVideo.VideoGLTextureOrientation) –

the GstVideo.VideoGLTextureOrientation

n_textures (Number) –

the number of textures

texture_type (GstVideo.VideoGLTextureType) –

array of GstVideo.VideoGLTextureType

upload (GstVideo.VideoGLTextureUpload) –

the function to upload the buffer to a specific texture ID

user_data (Object) –

user data for the implementor of upload

user_data_copy (GObject.BoxedCopyFunc) –

function to copy user_data

user_data_free (GObject.BoxedFreeFunc) –

function to free user_data

Returns (GstVideo.VideoGLTextureUploadMeta) –

the GstVideo.VideoGLTextureUploadMeta on buffer.

GstVideo.buffer_add_video_gl_texture_upload_meta

def GstVideo.buffer_add_video_gl_texture_upload_meta (buffer, texture_orientation, n_textures, texture_type, upload, *user_data, user_data_copy, user_data_free):
    #python wrapper for 'gst_buffer_add_video_gl_texture_upload_meta'

Attaches GstVideoGLTextureUploadMeta metadata to buffer with the given parameters.

Parameters:

buffer (Gst.Buffer) –

texture_orientation (GstVideo.VideoGLTextureOrientation) –

the GstVideo.VideoGLTextureOrientation

n_textures (int) –

the number of textures

texture_type (GstVideo.VideoGLTextureType) –

array of GstVideo.VideoGLTextureType

upload (GstVideo.VideoGLTextureUpload) –

the function to upload the buffer to a specific texture ID

user_data (variadic) –

user data for the implementor of upload

user_data_copy (GObject.BoxedCopyFunc) –

function to copy user_data

user_data_free (GObject.BoxedFreeFunc) –

function to free user_data

Returns (GstVideo.VideoGLTextureUploadMeta) –

the GstVideo.VideoGLTextureUploadMeta on buffer.

gst_buffer_add_video_meta

GstVideoMeta *
gst_buffer_add_video_meta (GstBuffer * buffer,
                           GstVideoFrameFlags flags,
                           GstVideoFormat format,
                           guint width,
                           guint height)

Attaches GstVideoMeta metadata to buffer with the given parameters and the default offsets and strides for format and width x height.

This function calculates the default offsets and strides and then calls gst_buffer_add_video_meta_full with them.

Parameters:

buffer –

flags –

GstVideoFrameFlags

format –

a GstVideoFormat

width –

the width

height –

the height

Returns ( [transfer: none]) –

the GstVideoMeta on buffer.

GstVideo.prototype.buffer_add_video_meta

function GstVideo.prototype.buffer_add_video_meta(buffer: Gst.Buffer, flags: GstVideo.VideoFrameFlags, format: GstVideo.VideoFormat, width: Number, height: Number): {
    // javascript wrapper for 'gst_buffer_add_video_meta'
}

Attaches GstVideoMeta metadata to buffer with the given parameters and the default offsets and strides for format and width x height.

This function calculates the default offsets and strides and then calls GstVideo.prototype.buffer_add_video_meta_full with them.

Parameters:

buffer (Gst.Buffer) –

flags (GstVideo.VideoFrameFlags) –

format (GstVideo.VideoFormat) –

width (Number) –

the width

height (Number) –

the height

Returns (GstVideo.VideoMeta) –

the GstVideo.VideoMeta on buffer.

GstVideo.buffer_add_video_meta

def GstVideo.buffer_add_video_meta (buffer, flags, format, width, height):
    #python wrapper for 'gst_buffer_add_video_meta'

Attaches GstVideoMeta metadata to buffer with the given parameters and the default offsets and strides for format and width x height.

This function calculates the default offsets and strides and then calls GstVideo.buffer_add_video_meta_full with them.

Parameters:

buffer (Gst.Buffer) –

flags (GstVideo.VideoFrameFlags) –

format (GstVideo.VideoFormat) –

width (int) –

the width

height (int) –

the height

Returns (GstVideo.VideoMeta) –

the GstVideo.VideoMeta on buffer.

gst_buffer_add_video_meta_full

GstVideoMeta *
gst_buffer_add_video_meta_full (GstBuffer * buffer,
                                GstVideoFrameFlags flags,
                                GstVideoFormat format,
                                guint width,
                                guint height,
                                guint n_planes,
                                const gsize * offset,
                                const gint * stride)

Attaches GstVideoMeta metadata to buffer with the given parameters.

Parameters:

buffer –

flags –

GstVideoFrameFlags

format –

a GstVideoFormat

width –

the width

height –

the height

n_planes –

number of planes

offset ( [arrayfixed-size=4]) –

offset of each plane

stride ( [arrayfixed-size=4]) –

stride of each plane

Returns ( [transfer: none]) –

the GstVideoMeta on buffer.

GstVideo.prototype.buffer_add_video_meta_full

function GstVideo.prototype.buffer_add_video_meta_full(buffer: Gst.Buffer, flags: GstVideo.VideoFrameFlags, format: GstVideo.VideoFormat, width: Number, height: Number, n_planes: Number, offset: [ Number ], stride: [ Number ]): {
    // javascript wrapper for 'gst_buffer_add_video_meta_full'
}

Attaches GstVideoMeta metadata to buffer with the given parameters.

Parameters:

buffer (Gst.Buffer) –

flags (GstVideo.VideoFrameFlags) –

format (GstVideo.VideoFormat) –

width (Number) –

the width

height (Number) –

the height

n_planes (Number) –

number of planes

offset ([ Number ]) –

offset of each plane

stride ([ Number ]) –

stride of each plane

Returns (GstVideo.VideoMeta) –

the GstVideo.VideoMeta on buffer.

GstVideo.buffer_add_video_meta_full

def GstVideo.buffer_add_video_meta_full (buffer, flags, format, width, height, n_planes, offset, stride):
    #python wrapper for 'gst_buffer_add_video_meta_full'

Attaches GstVideoMeta metadata to buffer with the given parameters.

Parameters:

buffer (Gst.Buffer) –

flags (GstVideo.VideoFrameFlags) –

format (GstVideo.VideoFormat) –

width (int) –

the width

height (int) –

the height

n_planes (int) –

number of planes

offset ([ int ]) –

offset of each plane

stride ([ int ]) –

stride of each plane

Returns (GstVideo.VideoMeta) –

the GstVideo.VideoMeta on buffer.

gst_buffer_add_video_region_of_interest_meta

GstVideoRegionOfInterestMeta *
gst_buffer_add_video_region_of_interest_meta (GstBuffer * buffer,
                                              const gchar * roi_type,
                                              guint x,
                                              guint y,
                                              guint w,
                                              guint h)

Attaches GstVideoRegionOfInterestMeta metadata to buffer with the given parameters.

Parameters:

buffer –

roi_type –

Type of the region of interest (e.g. "face")

x –

X position

y –

Y position

w –

width

h –

height

Returns ( [transfer: none]) –

the GstVideoRegionOfInterestMeta on buffer.

GstVideo.prototype.buffer_add_video_region_of_interest_meta

function GstVideo.prototype.buffer_add_video_region_of_interest_meta(buffer: Gst.Buffer, roi_type: String, x: Number, y: Number, w: Number, h: Number): {
    // javascript wrapper for 'gst_buffer_add_video_region_of_interest_meta'
}

Attaches GstVideo.VideoRegionOfInterestMeta metadata to buffer with the given parameters.

Parameters:

buffer (Gst.Buffer) –

roi_type (String) –

Type of the region of interest (e.g. "face")

x (Number) –

X position

y (Number) –

Y position

w (Number) –

width

h (Number) –

height

Returns (GstVideo.VideoRegionOfInterestMeta) –

the GstVideo.VideoRegionOfInterestMeta on buffer.

GstVideo.buffer_add_video_region_of_interest_meta

def GstVideo.buffer_add_video_region_of_interest_meta (buffer, roi_type, x, y, w, h):
    #python wrapper for 'gst_buffer_add_video_region_of_interest_meta'

Attaches GstVideo.VideoRegionOfInterestMeta metadata to buffer with the given parameters.

Parameters:

buffer (Gst.Buffer) –

roi_type (str) –

Type of the region of interest (e.g. "face")

x (int) –

X position

y (int) –

Y position

w (int) –

width

h (int) –

height

Returns (GstVideo.VideoRegionOfInterestMeta) –

the GstVideo.VideoRegionOfInterestMeta on buffer.

gst_buffer_add_video_region_of_interest_meta_id

GstVideoRegionOfInterestMeta *
gst_buffer_add_video_region_of_interest_meta_id (GstBuffer * buffer,
                                                 GQuark roi_type,
                                                 guint x,
                                                 guint y,
                                                 guint w,
                                                 guint h)

Attaches GstVideoRegionOfInterestMeta metadata to buffer with the given parameters.

Parameters:

buffer –

roi_type –

Type of the region of interest (e.g. "face")

x –

X position

y –

Y position

w –

width

h –

height

Returns ( [transfer: none]) –

the GstVideoRegionOfInterestMeta on buffer.

GstVideo.prototype.buffer_add_video_region_of_interest_meta_id

function GstVideo.prototype.buffer_add_video_region_of_interest_meta_id(buffer: Gst.Buffer, roi_type: GLib.Quark, x: Number, y: Number, w: Number, h: Number): {
    // javascript wrapper for 'gst_buffer_add_video_region_of_interest_meta_id'
}

Attaches GstVideo.VideoRegionOfInterestMeta metadata to buffer with the given parameters.

Parameters:

buffer (Gst.Buffer) –

roi_type (GLib.Quark) –

Type of the region of interest (e.g. "face")

x (Number) –

X position

y (Number) –

Y position

w (Number) –

width

h (Number) –

height

Returns (GstVideo.VideoRegionOfInterestMeta) –

the GstVideo.VideoRegionOfInterestMeta on buffer.

GstVideo.buffer_add_video_region_of_interest_meta_id

def GstVideo.buffer_add_video_region_of_interest_meta_id (buffer, roi_type, x, y, w, h):
    #python wrapper for 'gst_buffer_add_video_region_of_interest_meta_id'

Attaches GstVideo.VideoRegionOfInterestMeta metadata to buffer with the given parameters.

Parameters:

buffer (Gst.Buffer) –

roi_type (GLib.Quark) –

Type of the region of interest (e.g. "face")

x (int) –

X position

y (int) –

Y position

w (int) –

width

h (int) –

height

Returns (GstVideo.VideoRegionOfInterestMeta) –

the GstVideo.VideoRegionOfInterestMeta on buffer.

gst_buffer_add_video_time_code_meta

GstVideoTimeCodeMeta *
gst_buffer_add_video_time_code_meta (GstBuffer * buffer,
                                     const GstVideoTimeCode * tc)

Attaches GstVideoTimeCodeMeta metadata to buffer with the given parameters.

Parameters:

buffer –

tc –

a GstVideoTimeCode

Returns ( [transfer: none][nullable]) –

the GstVideoTimeCodeMeta on buffer, or (since 1.16) NULL if the timecode was invalid.

Since : 1.10

GstVideo.prototype.buffer_add_video_time_code_meta

function GstVideo.prototype.buffer_add_video_time_code_meta(buffer: Gst.Buffer, tc: GstVideo.VideoTimeCode): {
    // javascript wrapper for 'gst_buffer_add_video_time_code_meta'
}

Attaches GstVideo.VideoTimeCodeMeta metadata to buffer with the given parameters.

Parameters:

buffer (Gst.Buffer) –

tc (GstVideo.VideoTimeCode) –

a GstVideo.VideoTimeCode

Returns (GstVideo.VideoTimeCodeMeta) –

the GstVideo.VideoTimeCodeMeta on buffer, or (since 1.16) null if the timecode was invalid.

Since : 1.10

GstVideo.buffer_add_video_time_code_meta

def GstVideo.buffer_add_video_time_code_meta (buffer, tc):
    #python wrapper for 'gst_buffer_add_video_time_code_meta'

Attaches GstVideo.VideoTimeCodeMeta metadata to buffer with the given parameters.

Parameters:

buffer (Gst.Buffer) –

tc (GstVideo.VideoTimeCode) –

a GstVideo.VideoTimeCode

Returns (GstVideo.VideoTimeCodeMeta) –

the GstVideo.VideoTimeCodeMeta on buffer, or (since 1.16) None if the timecode was invalid.

Since : 1.10

gst_buffer_add_video_time_code_meta_full

GstVideoTimeCodeMeta *
gst_buffer_add_video_time_code_meta_full (GstBuffer * buffer,
                                          guint fps_n,
                                          guint fps_d,
                                          GDateTime * latest_daily_jam,
                                          GstVideoTimeCodeFlags flags,
                                          guint hours,
                                          guint minutes,
                                          guint seconds,
                                          guint frames,
                                          guint field_count)

Attaches GstVideoTimeCodeMeta metadata to buffer with the given parameters.

Parameters:

buffer –

fps_n –

framerate numerator

fps_d –

framerate denominator

latest_daily_jam –

a GDateTime for the latest daily jam

flags –

a GstVideoTimeCodeFlags

hours –

hours since the daily jam

minutes –

minutes since the daily jam

seconds –

seconds since the daily jam

frames –

frames since the daily jam

field_count –

fields since the daily jam

Returns ( [transfer: none][nullable]) –

the GstVideoTimeCodeMeta on buffer, or (since 1.16) NULL if the timecode was invalid.

Since : 1.10

GstVideo.prototype.buffer_add_video_time_code_meta_full

function GstVideo.prototype.buffer_add_video_time_code_meta_full(buffer: Gst.Buffer, fps_n: Number, fps_d: Number, latest_daily_jam: GDateTime (not introspectable), flags: GstVideo.VideoTimeCodeFlags, hours: Number, minutes: Number, seconds: Number, frames: Number, field_count: Number): {
    // javascript wrapper for 'gst_buffer_add_video_time_code_meta_full'
}

Attaches GstVideo.VideoTimeCodeMeta metadata to buffer with the given parameters.

Parameters:

buffer (Gst.Buffer) –

a GstVideo.VideoTimeCodeFlags

fps_n (Number) –

framerate numerator

fps_d (Number) –

framerate denominator

latest_daily_jam (GDateTime (not introspectable)) –

a GDateTime (not introspectable) for the latest daily jam

flags (GstVideo.VideoTimeCodeFlags) –

hours (Number) –

hours since the daily jam

minutes (Number) –

minutes since the daily jam

seconds (Number) –

seconds since the daily jam

frames (Number) –

frames since the daily jam

field_count (Number) –

fields since the daily jam

Returns (GstVideo.VideoTimeCodeMeta) –

the GstVideo.VideoTimeCodeMeta on buffer, or (since 1.16) null if the timecode was invalid.

Since : 1.10

GstVideo.buffer_add_video_time_code_meta_full

def GstVideo.buffer_add_video_time_code_meta_full (buffer, fps_n, fps_d, latest_daily_jam, flags, hours, minutes, seconds, frames, field_count):
    #python wrapper for 'gst_buffer_add_video_time_code_meta_full'

Attaches GstVideo.VideoTimeCodeMeta metadata to buffer with the given parameters.

Parameters:

buffer (Gst.Buffer) –

a GstVideo.VideoTimeCodeFlags

fps_n (int) –

framerate numerator

fps_d (int) –

framerate denominator

latest_daily_jam (GDateTime (not introspectable)) –

a GDateTime (not introspectable) for the latest daily jam

flags (GstVideo.VideoTimeCodeFlags) –

hours (int) –

hours since the daily jam

minutes (int) –

minutes since the daily jam

seconds (int) –

seconds since the daily jam

frames (int) –

frames since the daily jam

field_count (int) –

fields since the daily jam

Returns (GstVideo.VideoTimeCodeMeta) –

the GstVideo.VideoTimeCodeMeta on buffer, or (since 1.16) None if the timecode was invalid.

Since : 1.10

gst_buffer_get_video_meta

GstVideoMeta *
gst_buffer_get_video_meta (GstBuffer * buffer)

Find the GstVideoMeta on buffer with the lowest id.

Buffers can contain multiple GstVideoMeta metadata items when dealing with multiview buffers.

Parameters:

buffer –

Returns ( [transfer: none][nullable]) –

the GstVideoMeta with lowest id (usually 0) or NULL when there is no such metadata on buffer.

GstVideo.prototype.buffer_get_video_meta

function GstVideo.prototype.buffer_get_video_meta(buffer: Gst.Buffer): {
    // javascript wrapper for 'gst_buffer_get_video_meta'
}

Find the GstVideo.VideoMeta on buffer with the lowest id.

Buffers can contain multiple GstVideo.VideoMeta metadata items when dealing with multiview buffers.

Parameters:

buffer (Gst.Buffer) –

Returns (GstVideo.VideoMeta) –

the GstVideo.VideoMeta with lowest id (usually 0) or null when there is no such metadata on buffer.

GstVideo.buffer_get_video_meta

def GstVideo.buffer_get_video_meta (buffer):
    #python wrapper for 'gst_buffer_get_video_meta'

Find the GstVideo.VideoMeta on buffer with the lowest id.

Buffers can contain multiple GstVideo.VideoMeta metadata items when dealing with multiview buffers.

Parameters:

buffer (Gst.Buffer) –

Returns (GstVideo.VideoMeta) –

the GstVideo.VideoMeta with lowest id (usually 0) or None when there is no such metadata on buffer.

gst_buffer_get_video_meta_id

GstVideoMeta *
gst_buffer_get_video_meta_id (GstBuffer * buffer,
                              gint id)

Find the GstVideoMeta on buffer with the given id.

Buffers can contain multiple GstVideoMeta metadata items when dealing with multiview buffers.

Parameters:

buffer –

id –

a metadata id

Returns ( [transfer: none][nullable]) –

the GstVideoMeta with id or NULL when there is no such metadata on buffer.

GstVideo.prototype.buffer_get_video_meta_id

function GstVideo.prototype.buffer_get_video_meta_id(buffer: Gst.Buffer, id: Number): {
    // javascript wrapper for 'gst_buffer_get_video_meta_id'
}

Find the GstVideo.VideoMeta on buffer with the given id.

Buffers can contain multiple GstVideo.VideoMeta metadata items when dealing with multiview buffers.

Parameters:

buffer (Gst.Buffer) –

id (Number) –

a metadata id

Returns (GstVideo.VideoMeta) –

the GstVideo.VideoMeta with id or null when there is no such metadata on buffer.

GstVideo.buffer_get_video_meta_id

def GstVideo.buffer_get_video_meta_id (buffer, id):
    #python wrapper for 'gst_buffer_get_video_meta_id'

Find the GstVideo.VideoMeta on buffer with the given id.

Buffers can contain multiple GstVideo.VideoMeta metadata items when dealing with multiview buffers.

Parameters:

buffer (Gst.Buffer) –

id (int) –

a metadata id

Returns (GstVideo.VideoMeta) –

the GstVideo.VideoMeta with id or None when there is no such metadata on buffer.

gst_buffer_get_video_region_of_interest_meta_id

GstVideoRegionOfInterestMeta *
gst_buffer_get_video_region_of_interest_meta_id (GstBuffer * buffer,
                                                 gint id)

Find the GstVideoRegionOfInterestMeta on buffer with the given id.

Buffers can contain multiple GstVideoRegionOfInterestMeta metadata items if multiple regions of interests are marked on a frame.

Parameters:

buffer –

id –

a metadata id

Returns ( [transfer: none][nullable]) –

the GstVideoRegionOfInterestMeta with id or NULL when there is no such metadata on buffer.

GstVideo.prototype.buffer_get_video_region_of_interest_meta_id

function GstVideo.prototype.buffer_get_video_region_of_interest_meta_id(buffer: Gst.Buffer, id: Number): {
    // javascript wrapper for 'gst_buffer_get_video_region_of_interest_meta_id'
}

Find the GstVideo.VideoRegionOfInterestMeta on buffer with the given id.

Buffers can contain multiple GstVideo.VideoRegionOfInterestMeta metadata items if multiple regions of interests are marked on a frame.

Parameters:

buffer (Gst.Buffer) –

id (Number) –

a metadata id

Returns (GstVideo.VideoRegionOfInterestMeta) –

the GstVideo.VideoRegionOfInterestMeta with id or null when there is no such metadata on buffer.

GstVideo.buffer_get_video_region_of_interest_meta_id

def GstVideo.buffer_get_video_region_of_interest_meta_id (buffer, id):
    #python wrapper for 'gst_buffer_get_video_region_of_interest_meta_id'

Find the GstVideo.VideoRegionOfInterestMeta on buffer with the given id.

Buffers can contain multiple GstVideo.VideoRegionOfInterestMeta metadata items if multiple regions of interests are marked on a frame.

Parameters:

buffer (Gst.Buffer) –