On Tue, 2006-01-24 at 00:08 +0100, fons adriaensen wrote:
> On Tue, Jan 24, 2006 at 09:02:23AM +1100, Erik de Castro Lopo wrote:
> > fons adriaensen wrote:
> >
> > > What I need in particular is some way to calibrate the time
> > > axis - i.e. to say frame #N corresponds to t = 0, and some
> > > other similar info, mostly sample indices.
> >
> > There is no existing chunk type which does what you require. In
> > addition, it would be a bad idea to define your own custom
> > chunk type to do this.
>
> Would it ? It solves the problem, and all other apps will - or
> at least _should_ according to the WAV spec - just ignore it.
> What problems would be created by adding a new chunk ?
> The alternative would be a format that isn't standard at all.
BWF supports such a timestamp (the origination time).
> > However, it would be possible to add a comment string containing
> > the data you require as a text string. See:
> >
> > http://www.mega-nerd.com/libsndfile/api.html#string
>
> Yes, been there before I posted. It's probably a matter of taste,
> but I don't find this much cleaner than adding a new chunk.
>
> Thanks for the suggestions !
>
Received on Tue Jan 24 04:15:09 2006
This archive was generated by hypermail 2.1.8 : Tue Jan 24 2006 - 04:15:09 EET