re-sending and removing liaison lists to avoid spamming, Please reply to this one On Wed, Nov 13, 2013 at 11:57 AM, Giuseppe Pascale <giuseppep@opera.com>wrote: > On Wed, Nov 13, 2013 at 6:03 AM, Jon Piesing <Jon.Piesing@tpvision.com>wrote: > >> Brendan, >> >> > MPEG-2 TS >> > readonly attribute DOMString id; >> > The contents of the component_tag field in the >> stream_identifier_descriptor in PMT. >> > This seems like an odd choice. Why not the PID? >> >> In DVB networks, my (limited) understanding is that PIDs are changed as a >> TS passes through the distribution network but component tags remain >> unchanged. Certainly if you look in the DVB-SI specification, references >> from descriptors to elementary streams normally use a component tag and not >> a PID. >> >> > I think this discussion raises two questions: > > - what is the use case we are trying to address by exposing these info via > the track ID attribute? Is the only think we care is to have something that > unique locally to the application (in that case it may not matter much if > the PID changes along the broadcast value chain as far as each track as a > unique PID at the end) or are we trying to convey some other type of > information? > > - depending on the answer above, do we also need to consider regional > variations of the standards? > > /g > >
Received on Wednesday, 13 November 2013 04:15:45 UTC