Producer Reference Time (PRFT)

Definition

Producer Reference Time (PRFT) is a concept introduced in the context of LL-DASH. The PRFT supplies times corresponding to the production of associated media. Among other benefits, this information (i) provides media clients with information to enable consumption and production to proceed at equivalent rates, avoiding possible buffer overflow or underflow, and (ii) enables measuring, and potentially controlling, the latency between the production of the media time and the playout.