So, would it be better to work with this on the player end, with whatever playlist formats are available there? This seems logical to use with events between files in a playlist (between shorts, or in between the previews and the feature) but with something like "lights-up-to-halflight" at the start of the end credits of a feature, I didn't think the playlist would be useful, since that's an event in the middle of a file (even if it is right towards the very end).<br>
<br>Know what I mean? I'm on Linux, Ubuntu to be precise. What players would you recommend to handle advanced options like this? I realize we might start migrating off of the ogg topic right now, so my apologies ahead of time.<br>
<br>- Ricardo<br><br><div class="gmail_quote">On Fri, Jul 16, 2010 at 6:08 PM, Benjamin M. Schwartz <span dir="ltr"><<a href="mailto:bmschwar@fas.harvard.edu">bmschwar@fas.harvard.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div class="im">On 07/16/2010 04:56 PM, Ricardo Costa wrote:<br>
> . Is there any way to tag or embed a theora video<br>
> file with any sort of cues at certain points in the program or<br>
> individual file (feature start, end credits, feature end, etc.) that can<br>
> then be turned into pulses for theater automation systems to cue lights<br>
> up, lights down, sound format switch, etc.? Thanks for any help.<br>
<br>
</div>Theora (or more accurately, the Ogg container) does not have a standard<br>
system for coding these sorts of timed events. You can easily create one<br>
yourself, though.<br>
<br>
My recommendation is to use a separate file containing a labeled list of<br>
timestamps within the video. If it is important that only one file be<br>
used, you can encapsulate the contents of that file inside the Ogg file in<br>
a Skeleton "message header". There are utilities and libraries available<br>
for easily reading and writing these message headers.<br>
<br>
--Ben<br>
<br>
</blockquote></div><br><br clear="all"><br>-- <br>Ricardo M. Costa<br>Film & HD Video Projection<br>(323) 491-7346<br>