MP4GetRtpPacketTransmitOffset man page
MP4GetRtpPacketTransmitOffset — Get the transmit offset of an RTP packet
Specifies the mp4 file to which the operation applies.
Specifies the hint track to which the operation applies.
Specifies the packet to which the operation applies.
The transmit offset for the specified packet in the hint track timescale.
MP4GetRtpPacketTransmitOffset returns the transmit offset of an RTP packet. This offset may be set by some hinters to smooth out the packet transmission times and reduce network burstiness. A transmitter would need to apply this offset to the calculated transmission time based on the hint start time.
MP4(3) MP4AddRtpPacket(3) MP4ReadRtpPacket(3)