Re: time & timecode semantics in XML exports
Re: time & timecode semantics in XML exports
- Subject: Re: time & timecode semantics in XML exports
- From: Andreas Kiel <email@hidden>
- Date: Wed, 25 Jul 2007 11:26:35 +0200
Hi all,
(Helena - You still have some time to waste?)
To be honest - even if I sound stupid or look like an idiot - I still
got not an exact idea how to retrieve clip in/out with (variable)
time remap.
Below an example from a BBC production. This example uses a variable
speed exported as XML V2 (from 5.1.4 as stated by the people from BBC
who created it)
…
<in>8916</in>
<out>9159</out>
…
<effect>
<name>Time Remap</name>
<effectid>timeremap</effectid>
<effectcategory>motion</effectcategory>
<effecttype>motion</effecttype>
<mediatype>video</mediatype>
<parameter>
<parameterid>variablespeed</parameterid>
<name>variablespeed</name>
<valuemin>0</valuemin>
<valuemax>1</valuemax>
<value>1</value>
</parameter>
<parameter>
<parameterid>mappedduration</parameterid>
<name>mappedduration</name>
</parameter>
<parameter>
<parameterid>speed</parameterid>
<name>speed</name>
<valuemin>-100000</valuemin>
<valuemax>100000</valuemax>
<value>100</value>
</parameter>
<parameter>
<parameterid>reverse</parameterid>
<name>reverse</name>
<value>FALSE</value>
</parameter>
<parameter>
<parameterid>frameblending</parameterid>
<name>frameblending</name>
</parameter>
<parameter>
<parameterid>graphdict</parameterid>
<name>graphdict</name>
<valuemin>0</valuemin>
<valuemax>29494</valuemax>
<keyframe>
<when>0</when>
<value>0</value>
<speedkfstart>TRUE</speedkfstart>
<speedvirtualkf>TRUE</speedvirtualkf>
<origvalue>0</origvalue>
</keyframe>
<keyframe>
<when>8916</when>
<value>8916</value>
<speedkfin>TRUE</speedkfin>
<speedvirtualkf>TRUE</speedvirtualkf>
<origvalue>8916</origvalue>
</keyframe>
<keyframe>
<when>8988</when>
<value>8988</value>
</keyframe>
<keyframe>
<when>9000</when>
<value>10681</value>
</keyframe>
<keyframe>
<when>9159</when>
<value>10840.7</value>
<speedkfout>TRUE</speedkfout>
<speedvirtualkf>TRUE</speedvirtualkf>
<origvalue>10840.7</origvalue>
</keyframe>
<keyframe>
<when>9943</when>
<value>11628</value>
</keyframe>
<keyframe>
<when>29494</when>
<value>29494</value>
<speedkfend>TRUE</speedkfend>
<speedvirtualkf>TRUE</speedvirtualkf>
<origvalue>29494</origvalue>
</keyframe>
<interpolation>
<name>FCPCurve</name>
</interpolation>
<value>1302</value>
</parameter>
</effect>
It seems to be pretty simple here since I can search for <when> ==
8916 and <when> == 9159 or the <speedkfin> and <speedkfout> and get
the value from there. Unfortunately there is no suggestion in the
docs how to handle the 10840.7 -- going back to FCP it could be 10839
or 10840 or 10841. Same even with an integer as an out frame let's
say 10840 - back to FCP it can be 10840 or 10839. Is there some
documentation about the scheme (how to handle) available?
( ;-) Again it would be nice with XML V4 to have an node which tells
me how number formats are handled -- on my german system the 10840.7
would be 10840,7 which can cause some collisions when working
international, especially if I want to go backwards (but I've to
check that for more details)).
Another example from Australia (same FCP setup as above - as stated
by the user). Here the editor decided to remap and then to reset the
things -- an entry still exists in the XML without <when> - I can
still look at <speed> = 100 and forget, but hmmmm :).
Also the entry <parameter><parameterid>mappedduration</
parameterid><name>mappedduration</name><value><timecode> … looks more
"rich" as in the previous example and looks some kind of senseless to
me as the time base is 0 - I can't find any docs about that to handle.
…
<in>4108</in>
<out>4128</out>
…
<effect>
<name>Time Remap</name>
<effectid>timeremap</effectid>
<effectcategory>motion</effectcategory>
<effecttype>motion</effecttype>
<mediatype>video</mediatype>
<parameter>
<parameterid>variablespeed</parameterid>
<name>variablespeed</name>
<valuemin>0</valuemin>
<valuemax>1</valuemax>
<value>0</value>
</parameter>
<parameter>
<parameterid>mappedduration</parameterid>
<name>mappedduration</name>
<value>
<timecode>
<rate>
<timebase>0</timebase>
</rate>
<string>0</string>
<frame>0</frame>
<displayformat>NDF</displayformat>
</timecode>
</value>
</parameter>
<parameter>
<parameterid>speed</parameterid>
<name>speed</name>
<valuemin>-100000</valuemin>
<valuemax>100000</valuemax>
<value>100</value>
</parameter>
<parameter>
<parameterid>reverse</parameterid>
<name>reverse</name>
<value>FALSE</value>
</parameter>
<parameter>
<parameterid>frameblending</parameterid>
<name>frameblending</name>
<value>TRUE</value>
</parameter>
</effect>
Here an example for variable speed from the same sequence from
Australia:
"<clipitem id=\"BJ001dv2\">
<name>BJ001dv</name>
<duration>56094</duration>
<rate>
<ntsc>FALSE</ntsc>
<timebase>25</timebase>
</rate>
<in>2630</in>
<out>2758</out>
<start>729</start>
<end>857</end>
<filter>
<effect>
<name>Time Remap</name>
<effectid>timeremap</effectid>
<effectcategory>motion</effectcategory>
<effecttype>motion</effecttype>
<mediatype>video</mediatype>
<parameter>
<parameterid>variablespeed</parameterid>
<name>variablespeed</name>
<valuemin>0</valuemin>
<valuemax>1</valuemax>
<value>1</value>
</parameter>
<parameter>
<parameterid>mappedduration</parameterid>
<name>mappedduration</name>
<value>
<timecode>
<rate>
<timebase>0</timebase>
</rate>
<string>0</string>
<frame>0</frame>
<displayformat>NDF</displayformat>
</timecode>
</value>
</parameter>
<parameter>
<parameterid>speed</parameterid>
<name>speed</name>
<valuemin>-100000</valuemin>
<valuemax>100000</valuemax>
<value>212.023</value>
</parameter>
<parameter>
<parameterid>reverse</parameterid>
<name>reverse</name>
<value>FALSE</value>
</parameter>
<parameter>
<parameterid>frameblending</parameterid>
<name>frameblending</name>
<value>TRUE</value>
</parameter>
<parameter>
<parameterid>graphdict</parameterid>
<name>graphdict</name>
<valuemin>0</valuemin>
<valuemax>61658</valuemax>
<keyframe>
<when>0</when>
<value>0</value>
<speedkfstart>TRUE</speedkfstart>
</keyframe>
<keyframe>
<when>2607</when>
<value>2866</value>
</keyframe>
<keyframe>
<when>2630</when>
<value>2901.11</value>
<speedkfin>TRUE</speedkfin>
</keyframe>
<keyframe>
<when>2683</when>
<value>2983</value>
</keyframe>
<keyframe>
<when>2703</when>
<value>3028</value>
</keyframe>
<keyframe>
<when>2743</when>
<value>3144</value>
</keyframe>
<keyframe>
<when>2758</when>
<value>3172.5</value>
<speedkfout>TRUE</speedkfout>
</keyframe>
<keyframe>
<when>2783</when>
<value>3220</value>
</keyframe>
<keyframe>
<when>3149</when>
<value>3149</value>
</keyframe>
<keyframe>
<when>56094</when>
<value>61658</value>
<speedkfend>TRUE</speedkfend>
</keyframe>
<interpolation>
<name>FCPCurve</name>
</interpolation>
<value>2887.62</value>
</parameter>
</effect>
</filter>
<sourcetrack>
<mediatype>video</mediatype>
</sourcetrack>
In FCP the source in is shown as "3197" and out as "3172".
With that clip above I currently have no idea how extract these
values from the above data.
Any help would be really appreciated.
Regards
Andreas
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