VAEncSequenceParameterBufferAV1 Struct Reference

AV1 Encoding Sequence Parameter Buffer Structure. More...

#include <va_enc_av1.h>

Public Attributes
uint8_t	seq_profile
	AV1 profile setting. value range [0..2].
uint8_t	seq_level_idx
	Level Setting of current operation point. value range [0..23].
uint8_t	seq_tier
	Tier Setting of current operation point. value range [0..1].
uint8_t	hierarchical_flag
	Indicates whether or not the encoding is in dyadic hierarchical GOP structure. value range [0..1].
uint32_t	intra_period
	Period between intra_only frames.
uint32_t	ip_period
	Period between I/P frames. For hierarchical structure, this is the anchor frame distance.
uint32_t	bits_per_second
	Initial bitrate set for this sequence in CBR or VBR modes. More...
uint8_t	order_hint_bits_minus_1
	Corresponds to AV1 syntax element of the same name. value range [0..7].
uint32_t	va_reserved [VA_PADDING_HIGH]
	Reserved bytes for future use, must be zero.
uint32_t	still_picture: 1
	Still picture encoding, no inter frame referencing.
uint32_t	use_128x128_superblock: 1
	Force using 128x128 or 64x64 Supper block.
uint32_t	enable_filter_intra: 1
	Corresponds to AV1 syntax element of the same name.
uint32_t	enable_intra_edge_filter: 1
	Corresponds to AV1 syntax element of the same name.
uint32_t	enable_interintra_compound: 1
	Corresponds to AV1 syntax element of the same name.
uint32_t	enable_masked_compound: 1
	Corresponds to AV1 syntax element of the same name.
uint32_t	enable_warped_motion: 1
	Corresponds to AV1 syntax element of the same name.
uint32_t	enable_dual_filter: 1
	Corresponds to AV1 syntax element of the same name.
uint32_t	enable_order_hint: 1
	Corresponds to AV1 syntax element of the same name.
uint32_t	enable_jnt_comp: 1
	Corresponds to AV1 syntax element of the same name.
uint32_t	enable_ref_frame_mvs: 1
	Corresponds to AV1 syntax element of the same name.
uint32_t	enable_superres: 1
	Corresponds to AV1 syntax element of the same name.
uint32_t	enable_cdef: 1
	Corresponds to AV1 syntax element of the same name.
uint32_t	enable_restoration: 1
	Corresponds to AV1 syntax element of the same name.
uint32_t	bit_depth_minus8: 3
	Sepcify number of bits for every channel(Y, U or V).
uint32_t	subsampling_x: 1
	Corresponds to AV1 syntax element of the same name.
uint32_t	subsampling_y: 1
	Corresponds to AV1 syntax element of the same name.
uint32_t	reserved_bits: 13
	Reserved bytes for future use, must be zero.

Detailed Description

AV1 Encoding Sequence Parameter Buffer Structure.

This structure conveys sequence level parameters.

Member Data Documentation

bits_per_second

uint32_t VAEncSequenceParameterBufferAV1::bits_per_second

Initial bitrate set for this sequence in CBR or VBR modes.

This field represents the initial bitrate value for CBR mode or initial max bitrate value for VBR mode in this sequence. i.e. if the encoder pipeline was created with a #VAConfigAttribRateControl attribute set to either VA_RC_CBR or VA_RC_VBR.

The bitrate can be modified later on through VAEncMiscParameterRateControl buffers.

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The documentation for this struct was generated from the following file:

• va_enc_av1.h