GstCodecs.H265Decoder¶

Subclasses:: None

Methods¶

Inherited:: GstVideo.VideoDecoder (43), Gst.Element (81), Gst.Object (27), GObject.Object (37)
Structs:: Gst.ElementClass (10), GObject.ObjectClass (5)

	`get_picture` (system_frame_number)
	`set_process_ref_pic_lists` (process)

Virtual Methods¶

Inherited:: GstVideo.VideoDecoder (21), Gst.Element (16), Gst.Object (1), GObject.Object (7)

	`do_decode_slice` (picture, slice, ref_pic_list0, ref_pic_list1)
	`do_end_picture` (picture)
	`do_get_preferred_output_delay` (live)
	`do_new_picture` (frame, picture)
	`do_output_picture` (frame, picture)
	`do_start_picture` (picture, slice, dpb)

Properties¶

Inherited:: GstVideo.VideoDecoder (6), Gst.Object (2)

Signals¶

Inherited:: Gst.Element (3), Gst.Object (1), GObject.Object (1)

Fields¶

Inherited:: Gst.Element (3), Gst.Object (1), GObject.Object (1)

Name	Type	Access
NumPicTotalCurr	`int`	r
NumPocLtCurr	`int`	r
NumPocLtFoll	`int`	r
NumPocStCurrAfter	`int`	r
NumPocStCurrBefore	`int`	r
NumPocStFoll	`int`	r
RefPicSetLtCurr	[`GstCodecs.H265Picture`]	r
RefPicSetLtFoll	[`GstCodecs.H265Picture`]	r
RefPicSetStCurrAfter	[`GstCodecs.H265Picture`]	r
RefPicSetStCurrBefore	[`GstCodecs.H265Picture`]	r
RefPicSetStFoll	[`GstCodecs.H265Picture`]	r
input_state	`GstVideo.VideoCodecState`	r
padding	[`object`]	r
parent	`GstVideo.VideoDecoder`	r

Class Details¶

class GstCodecs.H265Decoder(**kwargs)¶

Bases:: GstVideo.VideoDecoder
Abstract:: Yes
Structure:: GstCodecs.H265DecoderClass

The opaque GstCodecs.H265Decoder data structure.

get_picture(system_frame_number)¶

Parameters:: system_frame_number (int) – a target system frame number of GstCodecs.H265Picture
Returns:: a GstCodecs.H265Picture if successful, or None otherwise
Return type:: GstCodecs.H265Picture or None

Retrive DPB and return a GstCodecs.H265Picture corresponding to the system_frame_number

New in version 1.20.

set_process_ref_pic_lists(process)¶

Parameters:: process (bool) – whether subclass is requiring reference picture modification process

Called to en/disable reference picture modification process.

New in version 1.20.

do_decode_slice(picture, slice, ref_pic_list0, ref_pic_list1) virtual¶

Parameters:

picture (GstCodecs.H265Picture) – a GstCodecs.H265Picture
slice (GstCodecs.H265Slice) – a GstCodecs.H265Slice
ref_pic_list0 ([GstCodecs.H265Picture]) – an array of GstCodecs.H265Picture pointers
ref_pic_list1 ([GstCodecs.H265Picture]) – an array of GstCodecs.H265Picture pointers

Return type:

Gst.FlowReturn

Provides per slice data with parsed slice header and required raw bitstream for subclass to decode it. If GstCodecs.H265Decoder.set_process_ref_pic_lists() is called with True by the subclass, ref_pic_list0 and ref_pic_list1 are non-None.

do_end_picture(picture) virtual¶

Parameters:: picture (GstCodecs.H265Picture) – a GstCodecs.H265Picture
Return type:: Gst.FlowReturn

Optional. Called per one GstCodecs.H265Picture to notify subclass to finish decoding process for the GstCodecs.H265Picture

do_get_preferred_output_delay(live) virtual¶

Parameters:: live (bool) – whether upstream is live or not
Returns:: the number of perferred delayed output frame
Return type:: int

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

New in version 1.22.

do_new_picture(frame, picture) virtual¶

Parameters:

frame (GstVideo.VideoCodecFrame) – a GstVideo.VideoCodecFrame
picture (GstCodecs.H265Picture) – a GstCodecs.H265Picture

Return type:

Gst.FlowReturn

Optional. Called whenever new GstCodecs.H265Picture is created. Subclass can set implementation specific user data on the GstCodecs.H265Picture via GstCodecs.H265Picture.set_user_data()

do_output_picture(frame, picture) virtual¶

Parameters:

frame (GstVideo.VideoCodecFrame) –
picture (GstCodecs.H265Picture) –

Return type:

Gst.FlowReturn

do_start_picture(picture, slice, dpb) virtual¶

Parameters:

picture (GstCodecs.H265Picture) – a GstCodecs.H265Picture
slice (GstCodecs.H265Slice) – a GstCodecs.H265Slice
dpb (GstCodecs.H265Dpb) – a GstCodecs.H265Dpb

Return type:

Gst.FlowReturn

Optional. Called per one GstCodecs.H265Picture to notify subclass to prepare decoding process for the GstCodecs.H265Picture