Re: Again a XML Question
Re: Again a XML Question
- Subject: Re: Again a XML Question
- From: Eryk Vershen <email@hidden>
- Date: Mon, 28 Jan 2008 10:43:42 -0800
Andreas,
Since the <timebase> element is required to have an integer value, the
<ntsc> element's only purpose is to indicate whether that integer
should be modified by the (much loathed) NTSC multiplier - i.e.
1000/1001 - in order to arrive at the true rate.
As far as I understand it the <ntsc> element doesn't really have any
meaning within the <timecode> element since any timecode is
intrinsically integral. The <displayformat> should be NDF except
possibly when the <timebase> is 30, in which case it could be DF.
So, in the first example, the file has a rate of 29.97 and is using 30
NDF timecode.
In the second example the file has a rate of 23.98 and is using 24 NDF
timecode.
regards,
-eryk
On Jan 28, 2008, at 5:18 AM, Andreas Kiel wrote:
Hi all,
I'm working on application which does some kind of analyzing media
in a project or sequence. While working on that I may have come to a
point where do have a lak of understanding.
Within the XML an audio node may look like the below:
<file id="TD26 L016 Gwen">
<name>TD26 L016 Gwen</name>
<pathurl>file://localhost/RAID/TDI/TDI-026/026_Lines/TD26 L016 Gwen.wav
</pathurl>
<rate>
<timebase>30</timebase>
<ntsc>TRUE</ntsc>
</rate>
<duration>674</duration>
<timecode>
<rate>
<timebase>30</timebase>
<ntsc>TRUE</ntsc>
</rate>
<string>03:09:22:25</string>
<frame>340885</frame>
<displayformat>NDF</displayformat>
<source>source</source>
</timecode>
<media>
<audio>
<samplecharacteristics>
<samplerate>48000</samplerate>
<depth>24</depth>
</samplecharacteristics>
<channelcount>1</channelcount>
</audio>
</media>
</file>
So the timecode information says that this file is NTSC(True) 30
frames per second NDF. From my understanding there can't be this
kind of TC in FCP as the current handling of 30 NDF is not NTSC - at
least for video. Or is there a hidden handling which do match the
options of current audio HDRs?
It's even more confusing for me if I look at media using 24 frames
per second which won't show the "NTSC" node for the rate:
<file id="TDI_FULL_OPEN_REVISED">
<name>TDI_FULL_OPEN_REVISED</name>
<pathurl>file://localhost/RAID/TDI/TDI Final Theme/TDI_FULL_OPEN_REVISED.WAV
</pathurl>
<rate>
<timebase>24</timebase>
<ntsc>TRUE</ntsc>
</rate>
<duration>1461</duration>
<timecode>
<rate>
<timebase>24</timebase>
</rate>
<string>23:58:33:10</string>
<frame>2071522</frame>
<displayformat>NDF</displayformat>
<source>source</source>
</timecode>
<media>
<audio>
<samplecharacteristics>
<samplerate>48000</samplerate>
<depth>24</depth>
</samplecharacteristics>
<channelcount>2</channelcount>
</audio>
</media>
</file>
Maybe somebody can shed some light here - thanks.
Kind regards
Andreas
Andreas Kiel
Spherico
Nelkenstr. 25
D-76135 Karlsruhe
Tel.: +49 (0)721 183 9753
eFax: +1 650 897 8094
eMail: email@hidden
http://spherico.com/filmtools -- workflow tools for FCP
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