GstCodecParsers.Vp9Parser¶

Fields¶

Name	Type	Access	Description
bit_depth	`int`	r/w	bit depth of the stream
color_range	`int`	r/w	color range standard
color_space	`int`	r/w	color space standard
mb_segment_tree_probs	`bytes`	r/w	decoding tree probabilities
priv	`object`	r/w	GstVp9ParserPrivate struct to keep track of state variables
segment_pred_probs	`bytes`	r/w	segment prediction probabiilties
segmentation	[`GstCodecParsers.Vp9Segmentation`]	r/w	Segmentation info
subsampling_x	`int`	r/w	horizontal subsampling
subsampling_y	`int`	r/w	vertical subsampling

Methods¶

	`free` ()
	`parse_frame_header` (frame_hdr, data, size)
	`parse_superframe_info` (superframe_info, data, size)

Details¶

class GstCodecParsers.Vp9Parser¶

For more details about the structures, you can refer to the specifications:

New in version 1.8.

free()¶: Frees self.

New in version 1.8.

parse_frame_header(frame_hdr, data, size)¶

Parameters:

frame_hdr (GstCodecParsers.Vp9FrameHdr) – The GstCodecParsers.Vp9FrameHdr to fill
data (int) – The data to parse
size (int) – The size of the data to parse

Returns:

a GstCodecParsers.Vp9ParserResult

Return type:

GstCodecParsers.Vp9ParserResult

Parses the VP9 bitstream contained in data, and fills in frame_hdr with the information. The size argument represent the whole frame size.

New in version 1.8.

parse_superframe_info(superframe_info, data, size)¶

Parameters:

superframe_info (GstCodecParsers.Vp9SuperframeInfo) – The GstCodecParsers.Vp9SuperframeInfo to fill
data (int) – The data to parse
size (int) – The size of the data to parse

Returns:

a GstCodecParsers.Vp9ParserResult

Return type:

GstCodecParsers.Vp9ParserResult

Parses the VP9 bitstream contained in data, and fills in superframe_info with the information. The size argument represent the whole superframe size. If data is not superframe but normal frame, the parser returns GstCodecParsers.Vp9ParserResult.OK, frame_size[0] is set to size and frames_in_superframe is set to 1. Also this method does not validate vp9frame header and verifying the frame header is caller’s responsibility.

New in version 1.18.