org.jitsi.service.neomedia.recording

Interface Synchronizer

All Known Implementing Classes:

SynchronizerImpl

public interface Synchronizer

Author:

Boris Grozev

Method Summary

Modifier and Type	Method and Description
long	getLocalTime(long ssrc, long rtpTime) Tries to find the local time (as returned by System.currentTimeMillis()) that corresponds to the RTP timestamp rtpTime for the SSRC ssrc.
void	mapLocalToNtp(long ssrc, long localTime, double ntpTime) Notifies this Synchronizer that the local timestamp localTime corresponds to the NTP timestamp ntpTime (for SSRC ssrc).
void	mapRtpToNtp(long ssrc, long rtpTime, double ntpTime) Notifies this Synchronizer that the RTP timestamp rtpTime (for SSRC ssrc) corresponds to the NTP timestamp ntpTime.
void	setEndpoint(long ssrc, String endpointId) Sets the endpoint identifier for a specific SSRC.
void	setRtpClockRate(long ssrc, long clockRate) Sets the clock rate of the RTP clock for a specific SSRC.

Method Detail

setRtpClockRate

void setRtpClockRate(long ssrc,
                     long clockRate)

Sets the clock rate of the RTP clock for a specific SSRC.

Parameters:

ssrc - the SSRC for which to set the RTP clock rate.

clockRate - the clock rate.

setEndpoint

void setEndpoint(long ssrc,
                 String endpointId)

Sets the endpoint identifier for a specific SSRC.

Parameters:

ssrc - the SSRC for which to set the endpoint identifier.

endpointId - the endpoint identifier to set.

mapRtpToNtp

void mapRtpToNtp(long ssrc,
                 long rtpTime,
                 double ntpTime)

Notifies this Synchronizer that the RTP timestamp rtpTime (for SSRC ssrc) corresponds to the NTP timestamp ntpTime.

Parameters:

ssrc - the SSRC.

rtpTime - the RTP timestamp which corresponds to ntpTime.

ntpTime - the NTP timestamp which corresponds to rtpTime.

mapLocalToNtp

void mapLocalToNtp(long ssrc,
                   long localTime,
                   double ntpTime)

Notifies this Synchronizer that the local timestamp localTime corresponds to the NTP timestamp ntpTime (for SSRC ssrc).

Parameters:

ssrc - the SSRC.

localTime - the local timestamp which corresponds to ntpTime.

ntpTime - the NTP timestamp which corresponds to localTime.

getLocalTime

long getLocalTime(long ssrc,
                  long rtpTime)

Tries to find the local time (as returned by System.currentTimeMillis()) that corresponds to the RTP timestamp rtpTime for the SSRC ssrc. Returns -1 if the local time cannot be found (for example because not enough information for the SSRC has been previously provided to the Synchronizer).

Parameters:

ssrc - the SSRC with which rtpTime is associated.

rtpTime - the RTP timestamp

Returns:

the local time corresponding to rtpTime for SSRC ssrc if it can be calculated, and -1 otherwise.