rtp clarifications needed

Voice Over IP technology.

rtp clarifications needed

Postby John » Wed Dec 14, 2005 12:20 pm

Hi,
i am a student and learning to implementing and
understanding rtp.

i am going thru the rtp code.

i got the logic in computing inter arrival jitter
(usual way as it is done in the rfc)

int transit = arrival - r->ts;
int d = transit - s->transit;
s->transit = transit;
if (d < 0) d = -d;
s->jitter += (1./16.) * ((double)d -
s->jitter);


what units is it in ?. timestamps or milliseconds.

i want to know how playout delay is computed (when
should be the next packet be played).

how jitter is used for this ?. can it be used ?.


How is the playout time computed from jitter


Please Advice,


Regards,
James
John
 

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