[haiku-development] Re: Defining new standard attributes
- From: "Axel Dörfler" <axeld@xxxxxxxxxxxxxxxx>
- To: haiku-development@xxxxxxxxxxxxx
- Date: Thu, 19 Nov 2009 22:36:03 +0100
André Braga <meianoite@xxxxxxxxx> wrote:
> 2009/11/19 Alexandre Deckner <alex@xxxxxxxxxxxx>:
> > +1 for video:framerate, but PAL/SECAM/NTSC is an analog signal
> > property
> > unless i'm missing something.
> You're right.
>
> I also suggest video:interlacing, with values "tff" (top field first),
> "bff" and "progressive".
>
> (audio|video):codec is also interesting when you have container
> formats. And there's also (audio|video):sampling, whose purpose is
> clear for the audio case, and for video it would have values such as
> 4:1:1 (DV), 4:2:0 (MPEG) etc.
Besides the codec, those have all very little use. The attributes are
supposed to contain useful entries the user would be interested in
actually showing in Tracker.
The framerate should always be 25 for PAL, ~30 for NTSC, and 24 for
movies -- IMO not really interesting, although it wouldn't be too hard
to be added.
Bye,
Axel.
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