59.94 TCs in Final Cut Server XMLs
59.94 TCs in Final Cut Server XMLs
- Subject: 59.94 TCs in Final Cut Server XMLs
- From: Rainer Standke <email@hidden>
- Date: Thu, 17 Sep 2009 11:11:33 -0700
Hello,
I am seeing what I would call an inconsistency in XMLs output from
Final Cut Server.
This here is from a clip in 29.97 DF (note the ;):
<mdValue fieldName="Timecode Offset" dataType="timecode">01:00:00;00/
(30000,1001)</mdValue>
This here is from a clip in 29.97 NDF (note the absence of the ;):
<mdValue fieldName="Timecode Offset" dataType="timecode">01:00:00:00/
(30,1)</mdValue>
So in parsing these XMLs I assume that analog to how FCP XML work the
indicator for DF vs. NDF is the semicolon, rather than the frame rate,
as expressed in (30000,1001) vs. (30,1). In FCP XMLs the difference
between DF and NDF TCs is expressed in <displayformat>, thus very much
independant of <rate>/<ntsc>.
However, when I look at FCSvr XML for 59.94 fps clips I get no
semicolon at all:
59.94 NDF:
<mdValue fieldName="Timecode Offset" dataType="timecode">01:05:26:31/
(60,1)</mdValue>
59.94 DF:
<mdValue fieldName="Timecode Offset" dataType="timecode">01:00:42:12/
(60000,1001)</mdValue>
So here the difference is the rate, and only the rate.
Is it safe to assume that in the case of 59.94 there can never be a
clip with NDF Timecode running at 59.94? In other words, is it safe to
assume that the rate (59.94 vs. 60) is always going to indicate the DF
vs NDF? Mind you, in FCP XML it is not, and in 29.97 in Final Cut
Server it seems not to be the case, either.
Is this a bug?
Thanks for any insight you might provide,
Rainer Standke
XMiL Workflow Tools
http://www.xmil.biz
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