[opendtv] Re: A bit OT: 24 Frames Drop Frame Timecode
- From: "Russ Wood" <russ.wood@xxxxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Wed, 12 Dec 2007 10:43:14 -0000
John, thanks.
Our customers are the captioning houses, they have been given
pre-encoded videos at 23.97 by their customers and told to produce
captions/subtitles to 23.97 drop-frame.
Their customers may be wrong in their request - but they are customers
so we owe them a duty to fully investigate before we say no!
The more responses I get from the guys on this list and from
manufacturers like Evertz that there is no such thing as 23.97 DF (yet)
the happier I am - on the other hand I would like to see an upgrade to
the SMPTE 12M that allows us to satisfy these requests and will
contribute if asked.
I read a couple of the Masked Engineer's articles - I will read more
when I have a few moments.
Russ
-----Original Message-----
From: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx]
On Behalf Of John Shutt
Sent: 11 December 2007 19:25
To: opendtv@xxxxxxxxxxxxx
Subject: [opendtv] Re: A bit OT: 24 Frames Drop Frame Timecode
Russ,
I would start with going back to the customer who 'requested' this
feature of your closed captioning software and ask them how they are
creating 23.976 drop frame timecode.
As far as I can tell, and as I'm sure your own research has confirmed,
there is no standard for generating 23.976 drop frame timecode, so I'm
puzzled why they're asking for a feature that doesn't exist.
John
P.S. The Masked Engineer:
http://www.tvtechnology.com/features/Masked-Engineer/
"Mario Orazio is the pseudonym of a well-known television engineer who
wishes to remain anonymous. Send your questions or comments to him c/o
TV Technology. Or drop him a note on e-mail Mario_Orazio@xxxxxxxxxxx ."
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