[DVDnav-discuss] [PATCH] "dvdnav_jump_to_sector" as an alternative to "dvdnav_time_search" (REV 5: combined args to structs)

[gnosygnu]

On Fri, Jan 20, 2012 at 8:56 AM, Roger Pack <rogerdpack2 at gmail.com> wrote:
> I noticed this today with a DVD [IFO's available on request]:
> When attempting to jump to 642729000
> cell not found; find=7141433

Sorry to hear about that.

The 7141433 represents the requested time in milliseconds (642729000 /
90). This corresponds to 1:59:01 seconds.

Does such a time exist in the title?
- If it does, then the IFO's might be corrupt. The proc can't find a
cell with a start time / end time that would enclose the 1:59:01.
- If it doesn't, then it's a "normal" error. The proc should exit
immediately for invalid times.

> And it ended up jumping to near the beginning of the film.

That is odd. If it can't find a cell, it should exit immediately. I
looked at the proc now, and I can't see it doing anything else.

If you jump to 1:59:01 again, does it also take you near the
beginning? If it does, does it take you to 00:00:00 exactly or some
other time?

> I guess that brings up the question...what *should* a seek operation
> do if instructed to seek past the end?  My guess is it should seek to
> the last block, any thoughts?

I think that it should do nothing, rather than seek to the last block.
Of course, it's in my best interests to say that. :) However, I
downloaded vanilla VLC 1.1.11 and it also does nothing when I try to
jump to an invalid time (03:00:00).

> (FWIW, the current seek operations also
> "loop back around").

Sorry. Not sure what this means.

> -r
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