[vlc-devel] [PATCH] cc.c : Added basic features of CIA-708 to cc.c

[greeshma]

Greeshma


On Tue, Mar 24, 2015 at 5:53 PM, Francois Cartegnie <fcvlcdev at free.fr>
wrote:

> Le 24/03/2015 11:14, greeshma a écrit :
>
> > +enum eia708_WindowAttribs_Justify{
> > +    WindowJustify_LEFT=0,
> > +    WindowJustify_RIGHT=1,
> > +    WindowJustify_CENTER=2,
> > +    WindowJustify_FULL=3
> > +};
> > +
> > +enum eia708_WindowAttribs_AnchorID{
> > +    WindowAnchorID_UPPER_LEFT=0,
> > +    WindowAnchorID_UPPER_CENTER=1,
> > +    WindowAnchorID_UPPER_RIGHT=2,
> > +    WindowAnchorID_MIDDLE_LEFT=3,
> > +    WindowAnchorID_MIDDLE_CENTER=4,
> > +    WindowAnchorID_MIDDLE_RIGHT=5,
> > +    WindowAnchorID_LOWER_LEFT=6,
> > +    WindowAnchorID_LOWER_CENTER=7,
> > +    WindowAnchorID_LOWER_RIGHT=8
> > +};
> > +
>
> How common are those ones ?
>
> These are not much common.But The specific anchor point/ID and growth
direction helps user more control over positioning of text when there is
change in font size.This is one of major pros of CEA-708 over EIA-608 as
they are transferred through picture user data.


> We'll have to create/handle subregions but our text_renderer has no html
> syntax/parser for that task or for positioning.
>
> Initially we can restrict it to one, lower center may be.Once the total
captioning is made we have to extend the captions for different positioning
as it makes the captioning user friendly.

For Outreachy qualification task,do i need to add more working CEA-708
functions to the existing code?

> Francois
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