Thread Subject: Re: possible addition to the table in 4-A

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From: Gregg Vanderheiden
Date: Sun, Aug 26 2007 1:05 AM

Not sure I understand Paul,
Are you suggesting that Microsoft Media player or Realplayer or Quicktime
use 708?
I think I may be lost.

Gregg
-- ------------------------------
Gregg C Vanderheiden Ph.D.



> -----Original Message-----
> From: = EMAIL ADDRESS REMOVED =
> [mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of
> Schomburg, Paul
> Sent: Friday, August 24, 2007 3:42 PM
> To: TEITAC Audio/Video Subcommittee
> Subject: Re: [teitac-video] possible addition to the table in 4-A
>
> Geoff: A set-top box, Blu-Ray Disk, or other media player
> all use software too. Even TVs handle closed caption
> decoding via software. I don't see why a programmable IT
> device like a PC would require different rules. Any media
> player software the government provides to employees should
> be able to provide the same or equivalent functionality (e.g.
> 708) as other media players. The only exception we have
> agreed to provide is for personal video display devices,
> which must do so only where "readily achievable."
>
> I think if we decide to lower the bar for software media
> players then the same requirements should be applied to all
> "other digital video source devices."
>
> Thanks, Paul
>
> -----Original Message-----
> From: = EMAIL ADDRESS REMOVED =
> [mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of Geoff Freed
> Sent: Friday, August 24, 2007 10:27 AM
> To: TEITAC Audio/Video Subcommittee
> Subject: Re: [teitac-video] possible addition to the table in 4-A
>
> > Aren't personal
> > computers and other IT devices already covered by the
> requirements of
> > "Other digital video source devices"?
>
> I don't think software players are covered by this requirement. Item
> #3 currently refers to hardware devices and 708 captions. We
> could try changing it to cover software players, but I wonder
> if the wording would have to be overly complex in order to
> accommodate both hardware and software. Currently, item #3 says...
> ======
>
> 3. Equipment of this type:
>
> Other digital video source devices including personal video
> display devices Uses this standard:
>
> CEA 708 or functional equivalent (see end-note for definition
> of functional equivalent) To provide these functions:
>
> Pass caption data, when available, to the caption decoding
> circuitry of DTV displays ======
>
> Software players, either now or in the future, might be able
> to process 708 captions, so I'm not against mandating that
> they cover this type of data. But today they process various
> text formats to display captions so we should cover that,
> too. The provision above refers only to hardware and 708, it
> seems to me. Keeping them separate might be an easier route.
>
> Geoff.
>
>
> On Aug 24, 2007, at 9:44 AM, Schomburg, Paul wrote:
>
> > Geoff: I don't have a hatchet handy but a question.
> Aren't personal
> > computers and other IT devices already covered by the
> requirements of
> > "Other digital video source devices"? I think this would
> require PC
> > and other IT devices to use CEA-708 or a functional equivalent.
> > Perhaps
> > this section should be changed to clarify that software
> players that
> > are installed in PCs need to comply as well?
> >
> > Thanks, Paul
> >
> > -----Original Message-----
> > From: = EMAIL ADDRESS REMOVED =
> > [mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of
> Geoff Freed
> > Sent: Friday, August 24, 2007 9:14 AM
> > To: TEITAC Audio/Video Subcommittee
> > Subject: [teitac-video] possible addition to the table in 4-A
> >
> >
> > Gregg V recently pointed out that the table in 4-A, "Caption
> > Playback," dwells on the playback of captioned material on hardware
> > such as televisions, tuners and tuner cards, but not on software
> > players, such as QuickTime, Windows Media Player, RealPlayer and
> > Flash. This seems an oversight, no? I don't believe
> caption playback
> > in software players is specifically covered anywhere in
> > 508-- *content* is covered in section 6, but not the
> caption-display
> > capabilities of the players themselves.
> >
> > With this in mind, below is a draft of language to add to the table
> > (linearized for ease of reading). Software players would
> be item #4
> > in the table:
> >
> > 4-A - Caption Playback
> > Analog television, digital television and tuners, computer
> equipment,
> > software players and other equipment must provide closed and open
> > captions:
> >
> > 4. Equipment of this type:
> > Software audio or video players on computers, personal
> video display
> > devices or other devices which play digital audio or video
> >
> > Uses this standard:
> > [[GF note: there is no prevailing standard for captions in this
> > category. What should we say?
> >
> > To provide these functions:
> > Display caption data, when available. Players must allow users to
> > turn the caption display on and off at will, and the technology for
> > doing so must be freely available to all users.
> >
> > Let the hatchets fly!
> > Geoff/NCAM
> >
> >
> >
> >
> >

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