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Interlaced cameras

Definitions #

  • ‘i’ – Interlaced 
  • ‘p’ – Progressive
  • ‘psf’ – Progressive Segmented Frames

Interlaced signals from camera #

Some cameras and devices only output interlaced signals, these will be one of the following formats: 60i, 59.94i, 50i and 48i. This will generally be your shooting base rate (shooting fps) x2.

Although it is possible to stream an interlaced signal it is much better to deinterlace the footage to create progressive single frames ready to stream.

Our app can do this, there are just some changes to the settings of the source that need to be made

Base Rate FPS Interlaced FPS Stream FPS
24p
48i
24p
25p
50i
25p
29.97p
59.94i
29.97p
30p
60i
30p

How to deinterlace in our app #

1. Navigate to Remote Filming > Preferences > Video 

Set your ‘Common FPS Values’ drop down box to your Stream  / Project FPS as set out in the table above. eg. Set project with 50i source (Interlaced FPS) to 25p (Stream FPS)

 
2. Ensure your Source is set to your Interlaced FPS
3. Right Click the Source in Sources window
4. Navigate to Deinterlacing in the drop down window
5. Select Bottom field first and Linear Algorithm
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