[MPlayer-dev-eng] [RFC] EDL seeking and timing

[Vlad Seryakov]

On Sep 1, 2010, at 1:21 PM, Etienne Buira wrote:

> On Tue, Aug 31, 2010 at 03:58:23PM -0400, Vlad Seryakov wrote:
>> On Aug 31, 2010, at 9:29 AM, Reynaldo H. Verdejo Pinochet wrote:
>> 
>>> Hello Vlad, glad to see you are still trying to improve this.
>>> 
>>> Vlad Seryakov wrote:
>>>> Hi,
>>>> 
>>>> Before sending a patch i'd like to consult first, here is the problem:
>>>> [...]
>>> 
>>> It sounds like a sane approach to me, as long as its implemented
>>> as an added command line flag and the default behavior stays.
>>> 
>> 
>> This patch adds new command line option-edl-adjust-pts, when specified all positions in the edl file will be added with start_pts for playback, and if used with -edlout, positions will be saved minus start_pts. In summary, this options converts positions in all EDL files to be relative starting from 0. 
>> Without this, everything works as it was before.
>> 
>> Thanks
> 
> While adding a new options for adjusting pts, would it be possible to
> handle the case where pts are wrapping around ?
> 
> In my case, I use EDL to cut TV shows records, and sometimes, I have a
> "end pts < begin pts" (or alike, can't remember exactly) error when
> writing the EDL.
> 
> However, I don't know mplayer codebase, nor I have an idea how to
> cleanly handle this kind of cases (using something like "until now played
> timestamp", counting numbers of wraps as well as their max/min), so,
> sorry, no patch from me, except if I get leads on that.
> 

Yes, i am working on that as well because we are handling mostly MPEG TS files and PTS wraparounds are pretty common. I am just doing baby steps in adding stuff to mplayer.