Hi,
CCed Aaron Leventhal in addition to www-archive.
Thank you for looking this up, and sorry about the delay of my reply.
On May 16, 2008, at 15:11, Karl Dubost wrote:
About closed captioning and quicktime
Built-in solutions
Solutions such as QuickTime Text Track provide closed captioning,
while iChat AV and iSight provide the first video conferencing
solution with strong enough clarity to allow sign language
communication over the Internet. With these built-in accessibility
features, Macs enhance teaching and learning for a person who is
deaf or hard of hearing.
http://www.apple.com/education/accessibility/disabilities/hearing/
It doesn't give that much info, exploring further, I found
* Text Tracks
http://www.apple.com/quicktime/tutorials/texttracks.html
* Text Descriptors
http://www.apple.com/quicktime/tutorials/textdescriptors.html
To me, that looks like the old pre-3GPP QuickTime stuff.
I found also movies in Itunes which were done with Text Track and
its working in Safari 3.1 and Camino. Example. It was on by default
and I didn't find anyway to remove it in the browser.
http://tecnocato.podbean.com/2008/03/03/tecnocato-hd-0091-how-to-make-a-great-lunar-eclipse-video/
This one looks interesting. The container file appears to be an MPEG-4
container. Yet, QuickTime Player suggests that the text track might be
of the old kind--not of the 3GPP kind. I wonder what's really going on
here.
I had expected 3GPP Timed Text to be the only text track type around
for MPEG-4 containers.
--
Henri Sivonen
[EMAIL PROTECTED]
http://hsivonen.iki.fi/
