[M4IF Technotes] URLs in PROTOS

[Cyril Concolato]

Hi Christian,
Since the proto field is an MFString you need to use a particular syntax
to signal to then encoder that the string will actually be an odid. Use
the following syntax "od:2" instead of "2" and it will work, at least
with mp4tool.
> PROTO testURL [
>   exposedField MFString theURL []
> ]
> {
>   Shape {
>     geometry   Bitmap {}
>     appearance Appearance {
>       texture ImageTexture {
>         url IS theURL
>       }
>     }
>   }
> }
> OrderedGroup {
>   children [
>     DEF testInstance testURL {
>       url ["2"] # alternatively I tried: "url 2" and "url "2"
And of course the proto field name is not 'url' but 'theURL'.
>     }
>   ]
> }

Regards,
Cyril Concolato
-- 
Ecole Nationale Supérieure des Télécommunications, Paris
Dept. Comelec
46, rue Barrault 75013 Paris                
Tel: +33145817991    Fax: +33145804036