GstVp8Decoder

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstVideoDecoder
                    ╰──GstVp8Decoder

The opaque GstVp8Decoder data structure.

Class structure

GstVp8DecoderClass

Fields

parent_class (GstVideoDecoderClass) –

No description available

GstCodecs.Vp8DecoderClass

Attributes

parent_class (GstVideo.VideoDecoderClass) –

No description available

GstCodecs.Vp8DecoderClass

Attributes

parent_class (GstVideo.VideoDecoderClass) –

No description available

GstCodecs.Vp8Decoder

GObject.Object
    ╰──GObject.InitiallyUnowned
        ╰──Gst.Object
            ╰──Gst.Element
                ╰──GstVideo.VideoDecoder
                    ╰──GstCodecs.Vp8Decoder

The opaque GstCodecs.Vp8Decoder data structure.

GstCodecs.Vp8Decoder

GObject.Object
    ╰──GObject.InitiallyUnowned
        ╰──Gst.Object
            ╰──Gst.Element
                ╰──GstVideo.VideoDecoder
                    ╰──GstCodecs.Vp8Decoder

The opaque GstCodecs.Vp8Decoder data structure.

Virtual Methods

decode_picture

GstFlowReturn
decode_picture (GstVp8Decoder * decoder,
                GstVp8Picture * picture,
                GstVp8Parser * parser)

Parameters:

decoder –

No description available

picture –

No description available

parser –

No description available

Returns –

No description available

end_picture

GstFlowReturn
end_picture (GstVp8Decoder * decoder,
             GstVp8Picture * picture)

Optional. Called per one GstVp8Picture to notify subclass to finish decoding process for the GstVp8Picture

Parameters:

decoder –

No description available

picture –

No description available

Returns –

No description available

vfunc_end_picture

function vfunc_end_picture(decoder: GstCodecs.Vp8Decoder, picture: GstCodecs.Vp8Picture): {
    // javascript implementation of the 'end_picture' virtual method
}

Optional. Called per one GstCodecs.Vp8Picture to notify subclass to finish decoding process for the GstCodecs.Vp8Picture

Parameters:

decoder (GstCodecs.Vp8Decoder) –

No description available

picture (GstCodecs.Vp8Picture) –

No description available

Returns (Gst.FlowReturn) –

No description available

do_end_picture

def do_end_picture (decoder, picture):
    #python implementation of the 'end_picture' virtual method

Optional. Called per one GstCodecs.Vp8Picture to notify subclass to finish decoding process for the GstCodecs.Vp8Picture

Parameters:

decoder (GstCodecs.Vp8Decoder) –

No description available

picture (GstCodecs.Vp8Picture) –

No description available

Returns (Gst.FlowReturn) –

No description available

get_preferred_output_delay

guint
get_preferred_output_delay (GstVp8Decoder * decoder,
                            gboolean is_live)

Optional. Called by baseclass to query whether delaying output is preferred by subclass or not.

Parameters:

decoder –

a GstVp8Decoder

is_live –

whether upstream is live or not

Returns –

the number of perferred delayed output frame

Since : 1.20

vfunc_get_preferred_output_delay

function vfunc_get_preferred_output_delay(decoder: GstCodecs.Vp8Decoder, is_live: Number): {
    // javascript implementation of the 'get_preferred_output_delay' virtual method
}

Optional. Called by baseclass to query whether delaying output is preferred by subclass or not.

Parameters:

decoder (GstCodecs.Vp8Decoder) –

a GstCodecs.Vp8Decoder

is_live (Number) –

whether upstream is live or not

Returns (Number) –

the number of perferred delayed output frame

Since : 1.20

do_get_preferred_output_delay

def do_get_preferred_output_delay (decoder, is_live):
    #python implementation of the 'get_preferred_output_delay' virtual method

Optional. Called by baseclass to query whether delaying output is preferred by subclass or not.

Parameters:

decoder (GstCodecs.Vp8Decoder) –

a GstCodecs.Vp8Decoder

is_live (bool) –

whether upstream is live or not

Returns (int) –

the number of perferred delayed output frame

Since : 1.20

new_picture

GstFlowReturn
new_picture (GstVp8Decoder * decoder,
             GstVideoCodecFrame * frame,
             GstVp8Picture * picture)

Optional. Called whenever new GstVp8Picture is created. Subclass can set implementation specific user data on the GstVp8Picture via gst_vp8_picture_set_user_data

Parameters:

decoder –

No description available

frame –

No description available

picture –

No description available

Returns –

No description available

vfunc_new_picture

function vfunc_new_picture(decoder: GstCodecs.Vp8Decoder, frame: GstVideo.VideoCodecFrame, picture: GstCodecs.Vp8Picture): {
    // javascript implementation of the 'new_picture' virtual method
}

Optional. Called whenever new GstCodecs.Vp8Picture is created. Subclass can set implementation specific user data on the GstCodecs.Vp8Picture via gst_vp8_picture_set_user_data

Parameters:

decoder (GstCodecs.Vp8Decoder) –

No description available

frame (GstVideo.VideoCodecFrame) –

No description available

picture (GstCodecs.Vp8Picture) –

No description available

Returns (Gst.FlowReturn) –

No description available

do_new_picture

def do_new_picture (decoder, frame, picture):
    #python implementation of the 'new_picture' virtual method

Optional. Called whenever new GstCodecs.Vp8Picture is created. Subclass can set implementation specific user data on the GstCodecs.Vp8Picture via gst_vp8_picture_set_user_data

Parameters:

decoder (GstCodecs.Vp8Decoder) –

No description available

frame (GstVideo.VideoCodecFrame) –

No description available

picture (GstCodecs.Vp8Picture) –

No description available

Returns (Gst.FlowReturn) –

No description available

new_sequence

GstFlowReturn
new_sequence (GstVp8Decoder * decoder,
              const GstVp8FrameHdr * frame_hdr,
              gint max_dpb_size)

Notifies subclass of SPS update

Parameters:

decoder –

No description available

frame_hdr –

No description available

max_dpb_size –

No description available

Returns –

No description available

output_picture

GstFlowReturn
output_picture (GstVp8Decoder * decoder,
                GstVideoCodecFrame * frame,
                GstVp8Picture * picture)

Called with a GstVp8Picture which is required to be outputted. Subclass can retrieve parent GstVideoCodecFrame by using gst_video_decoder_get_frame with system_frame_number and the GstVideoCodecFrame must be consumed by subclass via gst_video_decoder_{finish,drop,release}_frame.

Parameters:

decoder –

No description available

frame –

No description available

picture –

No description available

Returns –

No description available

vfunc_output_picture

function vfunc_output_picture(decoder: GstCodecs.Vp8Decoder, frame: GstVideo.VideoCodecFrame, picture: GstCodecs.Vp8Picture): {
    // javascript implementation of the 'output_picture' virtual method
}

Called with a GstCodecs.Vp8Picture which is required to be outputted. Subclass can retrieve parent GstVideo.VideoCodecFrame by using GstVideo.VideoDecoder.prototype.get_frame with system_frame_number and the GstVideo.VideoCodecFrame must be consumed by subclass via gst_video_decoder_{finish,drop,release}_frame.

Parameters:

decoder (GstCodecs.Vp8Decoder) –

No description available

frame (GstVideo.VideoCodecFrame) –

No description available

picture (GstCodecs.Vp8Picture) –

No description available

Returns (Gst.FlowReturn) –

No description available

do_output_picture

def do_output_picture (decoder, frame, picture):
    #python implementation of the 'output_picture' virtual method

Called with a GstCodecs.Vp8Picture which is required to be outputted. Subclass can retrieve parent GstVideo.VideoCodecFrame by using GstVideo.VideoDecoder.get_frame with system_frame_number and the GstVideo.VideoCodecFrame must be consumed by subclass via gst_video_decoder_{finish,drop,release}_frame.

Parameters:

decoder (GstCodecs.Vp8Decoder) –

No description available

frame (GstVideo.VideoCodecFrame) –

No description available

picture (GstCodecs.Vp8Picture) –

No description available

Returns (Gst.FlowReturn) –

No description available

start_picture

GstFlowReturn
start_picture (GstVp8Decoder * decoder,
               GstVp8Picture * picture)

Optional. Called per one GstVp8Picture to notify subclass to prepare decoding process for the GstVp8Picture

Parameters:

decoder –

No description available

picture –

No description available

Returns –

No description available

vfunc_start_picture

function vfunc_start_picture(decoder: GstCodecs.Vp8Decoder, picture: GstCodecs.Vp8Picture): {
    // javascript implementation of the 'start_picture' virtual method
}

Optional. Called per one GstCodecs.Vp8Picture to notify subclass to prepare decoding process for the GstCodecs.Vp8Picture

Parameters:

decoder (GstCodecs.Vp8Decoder) –

No description available

picture (GstCodecs.Vp8Picture) –

No description available

Returns (Gst.FlowReturn) –

No description available

do_start_picture

def do_start_picture (decoder, picture):
    #python implementation of the 'start_picture' virtual method

Optional. Called per one GstCodecs.Vp8Picture to notify subclass to prepare decoding process for the GstCodecs.Vp8Picture

Parameters:

decoder (GstCodecs.Vp8Decoder) –

No description available

picture (GstCodecs.Vp8Picture) –

No description available

Returns (Gst.FlowReturn) –

No description available

GstVp8Picture

GstCodecs.Vp8Picture

Constructors

gst_vp8_picture_new

GstVp8Picture *
gst_vp8_picture_new ()

Create new GstVp8Picture

Returns –

a new GstVp8Picture

GstCodecs.Vp8Picture.prototype.new

function GstCodecs.Vp8Picture.prototype.new(): {
    // javascript wrapper for 'gst_vp8_picture_new'
}

Create new GstCodecs.Vp8Picture

Returns (GstCodecs.Vp8Picture) –

a new GstCodecs.Vp8Picture

GstCodecs.Vp8Picture.new

def GstCodecs.Vp8Picture.new ():
    #python wrapper for 'gst_vp8_picture_new'

Create new GstCodecs.Vp8Picture

Returns (GstCodecs.Vp8Picture) –

a new GstCodecs.Vp8Picture

Function Macros

GST_VP8_DECODER_CAST

#define GST_VP8_DECODER_CAST(obj)       ((GstVp8Decoder*)obj)

GST_VP8_PICTURE_CAST

#define GST_VP8_PICTURE_CAST(obj) (GST_VP8_PICTURE(obj))

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