Struct Pcr 

pub struct Pcr {
    pub ticks_27mhz: u64,
}

27 MHz Program Clock Reference sample. Stored as the composed base × 300 + extension value so callers can do plain integer arithmetic and ask for either component back when needed.

The full 27 MHz value uses 42 bits; we store it in a u64 and expose modular subtraction so wraparound at 2^33 × 300 ticks (≈ 26.5 hours) is correct without callers having to think about it.

Fields

ticks_27mhz: u64

Composed 27 MHz value: base × 300 + extension. Range is 0 ..= (2^33 - 1) × 300 + 299.

Implementations

impl Pcr

pub fn from_base_ext(base_90khz: u64, extension: u16) -> Self

Build from the 33-bit base + 9-bit extension as they sit in the adaptation field.

pub fn from_ticks_27mhz(ticks: u64) -> Self

Build from an already-composed 27 MHz tick count.

pub fn base_90khz(self) -> u64

33-bit program_clock_reference_base half (90 kHz).

pub fn extension(self) -> u16

9-bit program_clock_reference_extension half (0..=299).

pub fn delta_ticks(self, other: Pcr) -> i64

Difference self - other, in 27 MHz ticks, on the modular PCR ring (i.e. wraps correctly when other is greater than self by less than half the modulus).

Result is signed: positive when self is “after” other.

Trait Implementations

impl Clone for Pcr

fn clone(&self) -> Pcr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Pcr

impl Debug for Pcr

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

Formats the value using the given formatter.

impl Eq for Pcr

impl Hash for Pcr

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Pcr

fn cmp(&self, other: &Pcr) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Pcr

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Pcr

fn partial_cmp(&self, other: &Pcr) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Pcr