Struct SystemHeader 

pub struct SystemHeader {
    pub rate_bound: u32,
    pub audio_bound: u8,
    pub fixed_flag: bool,
    pub csps_flag: bool,
    pub system_audio_lock_flag: bool,
    pub system_video_lock_flag: bool,
    pub video_bound: u8,
    pub packet_rate_restriction_flag: bool,
    pub reserved_bits: u8,
    pub std_buffer_bounds: Vec<StdBufferBound>,
    pub trailing_reserved: Vec<u8>,
}

A parsed system header.

Fields

rate_bound: u32

Upper bound on program_mux_rate across all packs (22-bit, 50 B/s units).

audio_bound: u8

Upper bound on simultaneously-active audio streams (6-bit).

fixed_flag: bool

Fixed / variable bitrate indicator.

csps_flag: bool

Constrained system parameters flag.

system_audio_lock_flag: bool

System audio lock flag.

system_video_lock_flag: bool

System video lock flag.

video_bound: u8

Upper bound on simultaneously-active video streams (5-bit).

packet_rate_restriction_flag: bool

Packet rate restriction flag.

reserved_bits: u8

The 7 reserved_bits after packet_rate_restriction_flag (Table 2-40), preserved so a header whose encoder wrote something other than the conventional all-ones (0x7F) re-serializes byte-identically (audit r14-MPS-W8).

std_buffer_bounds: Vec<StdBufferBound>

Per-stream P-STD buffer bounds (the while (nextbits() == '1') loop).

trailing_reserved: Vec<u8>

Bytes of header_length that follow the stream-bound loop. Table 2-40 defines none, but a real encoder can pad the header; they are preserved verbatim so the header re-serializes byte-identically (audit r14-MPS-W8, #1119). Empty for a conformant header.

Trait Implementations

impl Clone for SystemHeader

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 SystemHeader

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

Formats the value using the given formatter.

impl Eq for SystemHeader

impl<'a> Parse<'a> for SystemHeader

type Error = Error

The error type this implementer returns. Typically the enclosing crate’s Error enum.

fn parse(b: &'a [u8]) -> Result<Self>

Parse bytes as Self. Returns Err(Self::Error) on any protocol violation or buffer underrun.

impl PartialEq for SystemHeader

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for SystemHeader

Available on crate feature serde only.

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Serialize for SystemHeader

type Error = Error

The error type this implementer returns (usually the same as the corresponding Parse impl, but need not be).

fn serialized_len(&self) -> usize

Number of bytes serialize_into will write.

fn serialize_into(&self, buf: &mut [u8]) -> Result<usize>

Write the serialised form into buf. Returns the number of bytes written (always equal to serialized_len()).

fn try_to_bytes(&self) -> Result<Vec<u8>, Self::Error>

Allocate a Vec and serialize into it, returning the serializer’s error instead of panicking. This is the only allocate-and-serialize entry point: there is deliberately no panicking to_bytes (hand-built values, or values assembled from damaged wire data, can violate a wire constraint, so the error must reach the caller).

impl StructuralPartialEq for SystemHeader