Re: 608 samples

Brilliant! I've actually already contacted the ccextractor maintainer and
he's very helpful. I'll also check out the Xine code, I've used it a lot
myself because of the good DVD support.

Philip
On Apr 1, 2014 6:52 PM, "Christian Vogler" <christian.vogler@gallaudet.edu>
wrote:

> There are also at least two open-source projects that have CEA-608 caption
> decoders - Xine (for the subset that is used on DVDs in the libspucc/
> source folder) and CCExtractor. Xine doesn't support roll-up captions,
> since they never appear on DVDs, but it handles pretty much everything
> else, including a file that Giovanni Galvez threw at me for testing a
> couple years ago.
>
> Christian
>
>
>
>
>
>
> On Mon, Mar 31, 2014 at 2:39 PM, Philip Jägenstedt <philipj@opera.com>wrote:
>
>> Thank you Ken!
>>
>> I remember now that SCC was one of the standalone 608 formats you
>> mentioned at FOMS. The raw essence is exactly what I'm interested in,
>> so that sounds very promising.
>>
>> I've asked to order a copy of "The Closed Captioning Handbook" for my
>> office, it looks very relevant to what I do.
>>
>> Philip
>>
>> On Tue, Apr 1, 2014 at 1:10 AM, Ken Harrenstien <klh@google.com> wrote:
>> > Giovanni Galvez is still there and still super helpful.
>> > Their software is widely used in the industry for format
>> > conversion.
>> >
>> > We host one of their demo videos at
>> > http://www.youtube.com/watch?v=BbqPe-IceP4
>> >
>> > and I'm sure Giovanni can send you the corresponding SCC
>> > files for that or any other demo video they have.  The reason
>> > I suggest SCC is that this format contains the raw 608 essence
>> > that we care about; in fact, this is YouTube's preferred upload
>> > format for movie/TV content.  If you want to know how to extract those
>> > bytes from a video file, then you have a much harder task given
>> > the multitude of video containers and formats.
>> >
>> > And yes, the CFR link, while terse, does contain pretty much all
>> > of the important bits.  The CEA documents are mostly about
>> > XDS data, which has nothing to do with captions.  For
>> > purposes of WebVTT conversion a much better place to start
>> > learning about 608 is the "Closed Captioning Handbook" by Gary Robson,
>> > which should still be available on Amazon.  I like it because it's
>> > very readable and has so much other interesting context.
>> >
>> > On the other hand, if you plan to implement some kind of
>> > cable set-top box, then yes, you'll need the CEA documents
>> > plus several other specs.
>> >
>> > --Ken
>> >
>> >
>> > On Mon, Mar 31, 2014 at 8:58 AM, Philip Jägenstedt <philipj@opera.com>
>> > wrote:
>> >>
>> >> Do you mean http://www.cpcweb.com/webcasts/webcast_samples.htm ?
>> >>
>> >> What I'm looking for is the actual video file that contains the 608
>> >> data, preferably with some clue about how to extract it as well :)
>> >>
>> >> Philip
>> >>
>> >> On Mon, Mar 31, 2014 at 10:16 PM, Christian Vogler
>> >> <christian.vogler@gallaudet.edu> wrote:
>> >> > Gio Galvez at CPC did a video like that. His company was bought out,
>> but
>> >> > it
>> >> > might still be possible to get access. Should I ask?
>> >> >
>> >> > Sent from my mobile phone.  Please excuse any touchscreen-induced
>> >> > weirdness.
>> >> >
>> >> > On Mar 31, 2014 9:53 AM, "Philip Jägenstedt" <philipj@opera.com>
>> wrote:
>> >> >>
>> >> >> Hi all,
>> >> >>
>> >> >> Does anyone have access to 608 caption data and recommendations for
>> >> >> software that is known to render it correctly? I'd like to
>> understand
>> >> >> the 608 model at the lowest level, but it's hard without examples.
>> I'm
>> >> >> guessing that people who have worked on 608 to WebVTT already have
>> >> >> sample files and scripts to process them, so anything like that
>> would
>> >> >> be appreciated.
>> >> >>
>> >> >> Also, the spec is incredibly brief, is there really nothing better
>> than
>> >> >> this?
>> >> >> http://edocket.access.gpo.gov/cfr_2007/octqtr/pdf/47cfr15.119.pdf
>> >> >>
>> >> >> Philip
>> >> >>
>> >> >
>> >>
>> >
>>
>
>
>
> --
> Christian Vogler, PhD
> Director, Technology Access Program
> Department of Communication Studies
> SLCC 1116
> Gallaudet University
> http://tap.gallaudet.edu/
> VP: 202-250-2795
>