2017

Table Of Contents
Example 4: One Track Multiple Spans
0 1 2 3 4 5 6 7 8 9 10 11
12 13 14 15 16
Clip
[=====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====[
Track 0
[=====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====[
Feed v0
[=====+=====+=====+=====+=====|ooooo+ooooo+ooooo+ooooo|=====+=====+=====+=====+=====+=====[
In this Open Clip, one track is an aggregate of multiple media sources. When time comes to present the
track in the application, each
<span> (page 1424) is concatenated to the previous one, top to bottom.
<?xml version="1.0"?>
<clip type="clip" version="4">
<tracks>
<track uid="t0">
<trackType>video</trackType>
<feeds>
<feed vuid="v0" uid="v0">
<spans>
<span>
<path
encoding="pattern">Media/Video1.[0001-0005].dpx</path>
</span>
<span>
<path
encoding="pattern">Media/Video2.[0001-0004].dpx</path>
</span>
<span>
<path
encoding="pattern">Media/Video3.[0001-0006].dpx</path>
</span>
</spans>
</feed>
</feeds>
</track>
</tracks>
</clip>
Remarks:
This represents a single track (or layer). For multiple tracks, you must use multiple
<track> (page 1426)
elements.
You cannot offset a
<span> (page 1424): there are no provisions to create black between <span> (page 1424)
element since a span is not an editorial decision, but rather a storage location:
<span> (page 1424) does
not have any timing information other than what can be inferred from the media it refers.
The duration of the
<feed> (page 1418) is equal to the sum of the <span> (page 1424) elements.
Media has to be homogenous across <span> (page 1424) elements. You cannot mix formats, such as having
DPX for one
<span> (page 1424), and then TIFF for another <span>.
Open Clip Examples | 1411