- From: Bruce Bailey <bbailey@clark.net>
- Date: Tue, 21 Dec 1999 13:22:31 -0500
- To: "'Web Accessibility Initiative'" <w3c-wai-ig@w3.org>
- Cc: "'geoff freed'" <geoff_freed@wgbh.org>, "'Jeffrey Pledger'" <jpledger@mindspring.com>
Thanks everyone. I swear I tried a few permutations on this before posting my question to the list. The discussion came up on the WAI GL list about real-time captioning of audio-only presentations. Geoff makes it clear that this is pretty straight forward using current technology. For a live test, start up RealPlayer 7 and enter the following URL into the "Open Location" (under File in the menu, also Ctrl-L) dialog box: http://www.dors.state.md.us/car-novid.smil Please note that the binary files in question are located at (and hosted by)the AbleChannel. You cannot just select the above URL (link) since there is no RealMedia server on the DORS server. If you do try and surf/browse to above URL though, one CAN "view source" to see the SMIL code. Bruce Bailey On Tuesday, December 21, 1999 9:39 AM, geoff freed [SMTP:geoff_freed@wgbh.org] wrote: > Hi, Bruce: > > It *IS* possible to write a valid SMIL presentation and play it using the G2 (and the RealPlayer 7). I don't want to spread untruths, so I'm sorry for the misunderstanding. However... when it comes to adding text to the presentation, things change. SMIL has no standard markup language for text presentation, so RealNetworks created their own-- RealText. (By the way, Oratrix has just released a version of GRiNS that will play RealText files, too.) > > As far as I know, it isn't possible to download a streamed SMIL presentation (unless you present the files in downloadable manner, like a zip file). The whole idea behind streaming files is that downloads are rendered unnecessary; this obviates rights problems and media theft, among other advantages (I do know that RealNetworks presentations can be coded to allow the user to record onto a local drive, but I haven't seen any examples of this yet). > > Re an example of a SMIL presentation without video: since you already have a copy of CAR.SMI and its associated media files, just replace its <layout> section with the one below: > > <layout> > <root-layout background-color="black" height="60" width="250"/> > <region id="textregion" top="10" left="-37" height="120" width="250"/> > </layout> > > Save the .SMI file and play it with the G2 or RealPlayer 7, and you will see the CAR clip without a video region but with captions in English or subtitles in German (if you change the language specification in the preferences menu). Is this the kind of thing you're looking for? If not, let me know. > > I'll have to spend some time reviewing the validation report; thanks for giving me the URL. > > Geoff Freed > WGBH/NCAM
Received on Tuesday, 21 December 1999 13:28:19 UTC