[MPlayer-dev-eng] NUT (informal) proposal, based on discussions

[Ivan Kalvachev]

2006/1/19, Michael Niedermayer <michaelni at gmx.at>:
> Hi
>
> On Tue, Jan 17, 2006 at 05:59:23PM -0500, Rich Felker wrote:
> [...]
> > Comments?
>
> after thinking about this again a little i think i am strongly in favor
> of a single pts and single ptr per syncpoint and nothing more complicated
>
> with index: optimal seeking
> without index: seeking to a point which has a keyframe in every stream
> prior to the user specified timestamp
>
> so even witout an index you can do exact seeking, and normal use of
> video+audio+subtitle files will be fine, only the case where you
> want very quick and exact seeking to a subset of streams will not
> work as well as with the more complicated cases but i really think
> that simplicity and overhead of the format is more important then
> that

Agree. I think I have proposed something like this above.
There is one simple catch I may have not written. The syncpoint that
holds keyframe must have back_ptr to the previous keyframe of the same
stream. But I guess it is obvious once you think about it.