Enum PcrEvent 

pub enum PcrEvent {
    Sample {
        pcr: Pcr,
        jitter_27mhz: i64,
        bitrate_bps: u64,
    },
    Discontinuity {
        pcr: Pcr,
        reason: DiscontinuityReason,
    },
}

Outcome of feeding one packet to a PcrTracker.

Variants

Sample

Packet carried a PCR and it was within the tolerance window — jitter_27mhz is the signed residual against the running bitrate’s prediction (0 on the first two samples — see PcrTracker for the formula).

Fields

pcr: Pcr

jitter_27mhz: i64

Signed jitter in 27 MHz ticks against the predicted arrival time. 0 until the third PCR (the first lets us remember a value, the second lets us bootstrap the rate, the third is the first one we can compare).

bitrate_bps: u64

Instantaneous bitrate estimate (bits per second). 0 on the first PCR; thereafter the rate computed from the previous pair of PCRs and the byte offsets between them.

Discontinuity

Either the adaptation field set discontinuity_indicator = 1 or the PCR jump exceeded max_jitter_27mhz. The internal running rate has been reset; the next two PCR samples will bootstrap a fresh estimate.

Fields

pcr: Pcr

reason: DiscontinuityReason

Trait Implementations

impl Clone for PcrEvent

fn clone(&self) -> PcrEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PcrEvent

impl Debug for PcrEvent

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

Formats the value using the given formatter.

impl PartialEq for PcrEvent

fn eq(&self, other: &PcrEvent) -> 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 StructuralPartialEq for PcrEvent