Struct SequenceHeader 

pub struct SequenceHeader {

    pub seq_profile: u8,
    pub still_picture: bool,
    pub reduced_still_picture_header: bool,
    pub operating_points: Vec<OperatingPoint>,
    pub operating_point_idc: u16,
    pub frame_width_bits: u32,
    pub frame_height_bits: u32,
    pub max_frame_width: u32,
    pub max_frame_height: u32,
    pub frame_id_numbers_present: bool,
    pub delta_frame_id_length: u32,
    pub additional_frame_id_length: u32,
    pub use_128x128_superblock: bool,
    pub enable_filter_intra: bool,
    pub enable_intra_edge_filter: bool,
    pub enable_interintra_compound: bool,
    pub enable_masked_compound: bool,
    pub enable_warped_motion: bool,
    pub enable_dual_filter: bool,
    pub enable_order_hint: bool,
    pub enable_jnt_comp: bool,
    pub enable_ref_frame_mvs: bool,
    pub seq_force_screen_content_tools: u8,
    pub seq_force_integer_mv: u8,
    pub order_hint_bits: u32,
    pub enable_superres: bool,
    pub enable_cdef: bool,
    pub enable_restoration: bool,
    pub color: ColorConfig,
    pub film_grain_params_present: bool,
    pub decoder_model_info_present: bool,
    pub buffer_delay_length: u32,
    pub buffer_removal_time_length: u32,
    pub frame_presentation_time_length: u32,
    pub equal_picture_interval: bool,
    pub timing_info_present: bool,
}

A fully parsed sequence header.

Fields

seq_profile: u8

seq_profile — 0, 1 or 2.

still_picture: bool

Whether the stream is flagged as a single still picture.

reduced_still_picture_header: bool

Whether the compact still-picture header form was used.

operating_points: Vec<OperatingPoint>

Every operating point in declaration order.

operating_point_idc: u16

OperatingPointIdc for the chosen point (point 0): the layer mask the frame header uses to decide whether to read temporal/spatial IDs.

frame_width_bits: u32

Bits used to code a frame width, frame_width_bits_minus_1 + 1.

frame_height_bits: u32

Bits used to code a frame height, frame_height_bits_minus_1 + 1.

max_frame_width: u32

Maximum frame width in samples.

max_frame_height: u32

Maximum frame height in samples.

frame_id_numbers_present: bool

Whether frames carry explicit frame-id numbers.

delta_frame_id_length: u32

delta_frame_id_length_minus_2 + 2 when ids are present.

additional_frame_id_length: u32

additional_frame_id_length_minus_1 + 1 when ids are present.

use_128x128_superblock: bool

Whether superblocks are 128x128 (true) or 64x64 (false).

enable_filter_intra: bool

Whether filter-intra prediction is enabled.

enable_intra_edge_filter: bool

Whether the intra edge filter is enabled.

enable_interintra_compound: bool

Inter-only tool switches, retained so the frame header parse stays faithful even though a still image never exercises them.

enable_masked_compound: bool

Whether masked compound is enabled.

enable_warped_motion: bool

Whether warped motion is enabled.

enable_dual_filter: bool

Whether the dual interpolation filter is enabled.

enable_order_hint: bool

Whether order hints are coded.

enable_jnt_comp: bool

Whether jnt_comp (distance-weighted compound) is enabled.

enable_ref_frame_mvs: bool

Whether reference-frame motion vectors are enabled.

seq_force_screen_content_tools: u8

seq_force_screen_content_tools, possibly the SELECT sentinel.

seq_force_integer_mv: u8

seq_force_integer_mv, possibly the SELECT sentinel.

order_hint_bits: u32

OrderHintBits — bits used to code an order hint, 0 when disabled.

enable_superres: bool

Whether super-resolution is enabled.

enable_cdef: bool

Whether CDEF is enabled.

enable_restoration: bool

Whether loop restoration is enabled.

color: ColorConfig

The colour configuration.

film_grain_params_present: bool

Whether film-grain parameters may appear in frame headers.

decoder_model_info_present: bool

Whether a decoder model was signalled (affects the frame header).

buffer_delay_length: u32

buffer_delay_length_minus_1 + 1 from the decoder model.

buffer_removal_time_length: u32

buffer_removal_time_length_minus_1 + 1 from the decoder model.

frame_presentation_time_length: u32

frame_presentation_time_length_minus_1 + 1 from the decoder model.

equal_picture_interval: bool

Whether pictures are equally spaced in time.

timing_info_present: bool

Whether timing information was present.

Implementations

impl SequenceHeader

pub fn parse(r: &mut BitReader<'_>) -> Result<Self>

Parse a sequence header from the start of an OBU payload.

Trait Implementations

impl Clone for SequenceHeader

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SequenceHeader

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.