Struct TimestampMapper

pub struct TimestampMapper { /* private fields */ }

Manages timestamp mappings between multiple streams

Implementations

impl TimestampMapper

pub fn new() -> Self

Create a new timestamp mapper

pub fn register_stream( &self, ssrc: RtpSsrc, clock_rate: u32, initial_rtp: RtpTimestamp, )

Register a new stream with its clock rate

pub fn update_from_sr( &self, ssrc: RtpSsrc, ntp: NtpTimestamp, rtp: RtpTimestamp, )

Update stream timing information from an RTCP sender report

pub fn map_streams( &self, source_ssrc: RtpSsrc, target_ssrc: RtpSsrc, source_rtp: RtpTimestamp, target_rtp: RtpTimestamp, ntp: NtpTimestamp, ) -> Option<f64>

Create or update a mapping between two streams

pub fn map_timestamp( &self, source_ssrc: RtpSsrc, target_ssrc: RtpSsrc, source_rtp: RtpTimestamp, ) -> Option<RtpTimestamp>

Map a timestamp from one stream to another

pub fn get_drift( &self, source_ssrc: RtpSsrc, target_ssrc: RtpSsrc, ) -> Option<f64>

Get estimated clock drift between two streams in PPM

pub fn rtp_to_wallclock( &self, ssrc: RtpSsrc, rtp: RtpTimestamp, ) -> Option<Instant>

Convert an RTP timestamp to wall clock time

pub fn wallclock_to_rtp( &self, ssrc: RtpSsrc, time: Instant, ) -> Option<RtpTimestamp>

Convert wall clock time to an RTP timestamp

pub fn get_sync_offset( &self, source_ssrc: RtpSsrc, target_ssrc: RtpSsrc, ) -> Option<f64>

Get the synchronization offset between two streams in milliseconds

Returns a positive value if target stream is ahead of source stream and should be delayed to achieve synchronization.

Trait Implementations

impl Clone for TimestampMapper

fn clone(&self) -> TimestampMapper

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for TimestampMapper

fn default() -> Self

Returns the “default value” for a type.