[Ogg a11y] (no subject)
silviapfeiffer1 at gmail.com
Tue Oct 14 11:32:56 PDT 2008
On Wed, Oct 15, 2008 at 5:27 AM, Damon Timm <damontimm at gmail.com> wrote:
> Hi Silvia -
> On Tue, Oct 14, 2008 at 2:37 AM, Silvia Pfeiffer <silviapfeiffer1 at gmail.com>
>> I am analysing the different caption formats (inluding TimedText) to
>> see which one would be most comprehensive in features and most
>> suitable to make a Ogg mapping for. It may well result in a new format
>> that includes lots from TimedText, some from CMML, some from Kate etc.
>> Alternatively it may be that there is a way to define a standard
>> mapping for any timed text type format... will have to think about
> From my own perspective, I found the task of trying to caption/subtitle
> something using open source tools to be *very* challenging; I ended up using
> free software for Windows, which I don't normally use and had to install
> just for this purpose (Windows, that is, not free software), and then
> convert it using the subtitle-horse.org website for the FLV player.
> I hope there can be more standardization among captioning formats on the web
> (or at least more openess and transparency) -- with YouTube now allowing
> captions, players like JW FLV Player, and others, the ability to
> write-once-apply-everywhere is critical for me ... hopefully with a push
> from an open source player (such as Xiph) there can be some open source
> tools to go hand in hand with it.
> Captioning on the web seems to be a two part animal -- PREPARING the
> captions and DISPLAYING them. I think it is worth keeping both parts of
> that in mind to encourage content providers to caption their material.
I see it as a more detailed data flow.
There are the authoring tools that create the captions in some format.
There are the transcoding tools that convert a given captions file
into a supported input format.
There are the encoding tools that map a supported input format into
the binary file, should that be necessary / requested. There could be
compression involved here.
Finally. there are the video players that need to extract the
encapsulated input format, interpret it, and display it to screen.
More information about the Accessibility