On Sun, Nov 26, 2006 at 04:28:28PM -0000, Måns Rullgård wrote:
Well, do they provide any mechanism to ensure that you have the correct subtitle displayed after seeking?
DVB doesn't care about seeking at all. That is a problem for recorders to solve as they see fit. I'm not sure about DVD, and quite frankly, I don't care. If the subtitles for the first line of dialog after a seek are missing, so what?
Actually users seem to care about this a lot, and it's one of the immediately visible-by-stupid-users practical benefits ot NUT. I flamed a bit at one time about how insistent Michael was on it, but now I'm glad we made the decision we did.
As for timestamp resets, you can't avoid them when broadcasting 24/7, unless you have infintely large timestamp fields.
64bit is long enough to run without problem until well past the end of the solar system... provided you don't choose timebase idiotically. :) Unfortunately I think mpeg uses 33bit or something and also uses idiotic timebase.
Why is the MPEG time base idiotic? 90kHz is nicely divisible by all the allowed frame rates.
Not all of the NTSC ones... The only factors of 90k are 2^4, 3^2, and 5^4. That is, 24000 and 60000 do not divide it. I know 24000/1001 is legal in mpeg1 and I'm pretty sure 60000/1001 is legal in HD broadcast.. Rich