Struct Pps 

pub struct Pps {

    pub pic_parameter_set_id: u32,
    pub seq_parameter_set_id: u32,
    pub entropy_coding_mode_flag: bool,
    pub bottom_field_pic_order_present: bool,
    pub num_ref_idx_l0_default: u32,
    pub num_ref_idx_l1_default: u32,
    pub weighted_pred: bool,
    pub weighted_bipred_idc: u8,
    pub pic_init_qp: i32,
    pub chroma_qp_index_offset: i32,
    pub deblocking_filter_control_present_flag: bool,
    pub constrained_intra_pred_flag: bool,
    pub redundant_pic_cnt_present_flag: bool,
    pub transform_8x8_mode_flag: bool,
    pub second_chroma_qp_index_offset: i32,
    pub pic_scaling_matrix_present: bool,
    pub scaling_4x4: [[u8; 16]; 6],
    pub scaling_8x8: [[u8; 64]; 2],
    pub scaling_present_4x4: [bool; 6],
    pub scaling_present_8x8: [bool; 2],
}

Parsed picture parameter set fields the decoder needs.

Fields

pic_parameter_set_id: u32

seq_parameter_set_id: u32

entropy_coding_mode_flag: bool

bottom_field_pic_order_present: bool

bottom_field_pic_order_in_frame_present_flag (a.k.a. pic_order_present): when set, slice headers carry an extra delta_pic_order_cnt value.

num_ref_idx_l0_default: u32

num_ref_idx_l1_default: u32

weighted_pred: bool

weighted_bipred_idc: u8

pic_init_qp: i32

chroma_qp_index_offset: i32

Signed offset applied when mapping luma QP to chroma QP (§8.5.8).

deblocking_filter_control_present_flag: bool

constrained_intra_pred_flag: bool

redundant_pic_cnt_present_flag: bool

transform_8x8_mode_flag: bool

transform_8x8_mode_flag (High PPS extension): when set, macroblocks may signal transform_size_8x8_flag to use the 8×8 transform.

second_chroma_qp_index_offset: i32

second_chroma_qp_index_offset (High PPS extension) — the Cr QP offset; defaults to chroma_qp_index_offset (the Cb offset) when absent.

pic_scaling_matrix_present: bool

pic_scaling_matrix_present_flag: per-picture scaling lists overriding the SPS ones (fall-back rule B). When false the SPS lists apply.

scaling_4x4: [[u8; 16]; 6]

Parsed PPS scaling lists (zig-zag order) and per-list present flags. Only meaningful when pic_scaling_matrix_present; absent lists resolve against the SPS at slice time.

scaling_8x8: [[u8; 64]; 2]

scaling_present_4x4: [bool; 6]

scaling_present_8x8: [bool; 2]

Implementations

impl Pps

pub fn parse(rbsp: &[u8]) -> Result<Self, DecodeError>

Parses a PPS RBSP. Rejects FMO/slice-groups cleanly; never panics.

Trait Implementations

impl Clone for Pps

fn clone(&self) -> Pps

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Pps

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

Formats the value using the given formatter.