Head / Full Range

Stephen Birdsong -

Clipster, Fuze, and Pronto can handle source files with varying levels. They rely on the bin clip properties in order to know how to handle each clip.

It is important thing to determine what the source is, then make sure the bin clip properties are accurate. Often, upstream mistakes will make the meta-data in a clip and the actual rgb values in the clip say different things; a head range clip with full range meta-data. This will throw off any system trying to output that clip, and will result in unexpected levels on subsequent processes. 

When setting up your timeline for SDI or File output, check the bin properties by right clicking on the clip(s), and selecting properties:



Now set the Range property correctly:



Now set your timeline/finalize output parameters for your desired Range for output:

SDI Output:



Finalize Output:



To understand what happens when you configure your output, look at the following matrix:

Bin - Output = Signal processing

Full - Full = Unity (0=0, 64=64, 940=940, 1023=1023)
Full - Head = Scaled down (0 is mapped to 64, 1023 is mapped to 940)
Head - Head = Unity (64 = 64, 940 = 940)
Head - Full = Scaled up (64 = 0, 940 = 1023)


 If you want unity, you can output Full - Full and you will get unity, but the file will be stamped as full range. So beware that a file that has a Full range flag in it, it will almost always be scaled down to head when output as a file or video that requires Head range. 

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