Stitching is done using the functions "Timeline API" and "Item conform" in Vidispine.
What is "Timeline API"?
Timeline API is used to store and retrieve timelines in the system. A timeline is represented in the system as a combination of:
The timeline itself (in the native format, but can be converted to other formats)
The rendered result as a new item.
The timeline with its constituent parts as a collection.
More information on API Timeline;
What is "Item conform"?
The conform resource exposes a simple way to combine media from one or more items into a new item. It is also possible to select specific parts from the input by specifying an input interval. There are two different types of conforming;
Start a confirm job = Starts a new CONFORM job that creates a new item and one or more shapes that contains media according to the conform timeline.The rendered result as a new item.
Start a conform job for an existing item = Starts a new CONFORM job that creates one or more shapes that contains media according to the conform timeline.
More information on Item conform and different query parameters;
In the example guide below we will be using "Start a conform job for an existing item".
It's only for the item that the resulting shape should belong to that needs a conform job as a timeline. For example, given three items VX-1, VX-2 and VX-3 with original shapes with media. To concatenate these into a new shape for item VX-100 one would do:
<ConformDocument xmlns="http://xml.vidispine.com/schema/vidispine"> <timeBase> <numerator>1</numerator> <denominator>25</denominator> </timeBase> <timeline> <segment> <source> <id>VX-1</id> </source> </segment> <segment> <source> <id>VX-2</id> </source> </segment> <segment> <source> <id>VX-3</id> </source> </segment> </timeline> </ConformDocument>
Then start the conform job using:
This would then create a shape on VX-100 tagged with house containing the media from those three files. Note that the source items (VX-1, VX-2 and VX-3) do not need a timeline on them.