[MPlayer-dev-eng] [PATCH] matroska chapter seeking

[Evgeniy Stepanov]

On Sunday 16 July 2006 13:12, Reimar Döffinger wrote:
> Hi,
>
> On Sat, Jul 15, 2006 at 07:42:55PM +0400, Evgeniy Stepanov wrote:
> > If demuxer contains chapters infomation, there is no need for
> > DEMUXER_CTRL_SEEK_TO_CHAPTER, regular seeking mechanism can be used.
>
> Well, the (maybe purely theoretical) disadvantage is that it only works
> if the demuxer is able to provide a full chapter list upfront.
> For a potential format that has only "chapter marks" embedded in the
> file that you would have to read over to find, this solution wouldn't
> work (at least not without adding something like -forceidx for chapter
> info).

I've got a problem with dvd chapters, it may have something in common with 
your idea. 

Looks like dvd chapters start/end points are given as offsets in dvd stream. 
I'm not very familiar with dvd stuff and interaction between demuxers and the 
stream layer. I wonder if there is a way to recalculate those values to pts ? 
If not, we may have to use a demuxer_ctrl.