Re: Getting start/end moments from an Audio_element_info???

[Reinhold Kainhofer]

Am Dienstag, 17. November 2009 01:29:49 schrieb Han-Wen Nienhuys:
> On Mon, Nov 16, 2009 at 4:54 PM, Reinhold Kainhofer
> 
> <address@hidden> wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > while trying to fix some MIDI issues, I've now run into the problem that
> > in a performer's acknowledge_audio_element method I need to calculate the
> > offset of the current Audio_element_info to a past info. Unfortunately, I
> > couldn't find
> 
> The audio element might not contain that information, but can't you
> just do performer->now_mom() to get the current moment?

Yes, of course, for the current moment. The problem is with ties and 
tieWaitForNote that when adding the end note of the tie, I can't simply append 
the duration of that end note to the start note of the tie, since that will 
miss any skips between the tied notes. So, I need the end moment of the 
starting note to get the gap between the tied notes....

Well, I suppose the only way then is how it is done in Tie_engraver, where a 
struct is used containing the tie object, spanner, start note and moment...

Unfortunately, then I'm running into strange memory corruption issues here:

Interpretation der Musik...terminate called after throwing an instance of 
'std::bad_alloc'
  what():  std::bad_alloc
Aborted


Cheers,
Reinhold
-- 
------------------------------------------------------------------
Reinhold Kainhofer, address@hidden, http://reinhold.kainhofer.com/
 * Financial & Actuarial Math., Vienna Univ. of Technology, Austria
 * http://www.fam.tuwien.ac.at/, DVR: 0005886
 * LilyPond, Music typesetting, http://www.lilypond.org