theora - Jul 2010 - Cinema automation cues

Hey there everyone,

I'm connection my desktop to my digital video projector to run features and
shorts programs. Is there any way to tag or embed a theora video file with
any sort of cues at certain points in the program or individual file
(feature start, end credits, feature end, etc.) that can then be turned into
pulses for theater automation systems to cue lights up, lights down, sound
format switch, etc.? Thanks for any help.

-- 
Ricardo M. Costa
Film & HD Video Projection
(323) 491-7346
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
http://lists.xiph.org/pipermail/theora/attachments/20100716/71a71a66/attachment.htm

On 07/16/2010 04:56 PM, Ricardo Costa wrote:
> . Is there any way to tag or embed a theora video
> file with any sort of cues at certain points in the program or
> individual file (feature start, end credits, feature end, etc.) that can
> then be turned into pulses for theater automation systems to cue lights
> up, lights down, sound format switch, etc.? Thanks for any help.
Theora (or more accurately, the Ogg container) does not have a standard
system for coding these sorts of timed events.  You can easily create one
yourself, though.

My recommendation is to use a separate file containing a labeled list of
timestamps within the video.  If it is important that only one file be
used, you can encapsulate the contents of that file inside the Ogg file in
a Skeleton "message header".  There are utilities and libraries
available
for easily reading and writing these message headers.

--Ben

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 198 bytes
Desc: OpenPGP digital signature
Url :
http://lists.xiph.org/pipermail/theora/attachments/20100716/1e2fdbaa/attachment.pgp