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Letterboxing & Pillarboxing

Letterboxing occurs when the width is too large for the 16:9 aspect ratio; pillarboxing occurs when the height is too large. It is important to calculate the correct dimensions for your player to avoid any black bars.

Symptoms

  • Black bars appear above and below your stream (letterboxing): HDOnTap Letterboxing
  • Black bars appear on the sides of your stream (pillarboxing): HDOnTap Pillarboxing
PREREQUISITES
You must have your Portal login. Contact your Customer Administrator or HDOnTap Support if you need assistance with your Portal credentials.

STEP-BY-STEP INSTRUCTIONS

1. Use the HDOnTap Player Sizing Tool to calculate the correct. 2. Change the width and height parameters (highlighted) in your code as necessary: <iframe width=””640” height=”360” src=”https://portal.hdontap.com/s/embed?stream=streamname” frameborder=”0″ allowfullscreen> 3. Save your changes and refresh your website. You should no longer see any letterboxing or pillarboxing.
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