Aspect Ratio and Responsive Scaling Issues with Plyr + HLS (Cloudflare R2)

3 weeks ago 16
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Problem Description:

I am developing a WebApp that streams video content from Cloudflare R2 via the HLS protocol using the Plyr.io library for the UI.

The issue occurs specifically on mobile devices when switching to landscape mode. I cannot get the video to behave like a standard player (e.g., YouTube or Google Drive), where the video fills 100% of the available height while maintaining its original aspect ratio, adding black bars to the sides only if necessary, without cropping or zooming the image.

Technical Details:

* Protocol: HLS (.m3u8)

* Storage: Cloudflare R2

* UI Library: Plyr.io

* Framework: React / Tailwind CSS

Current Behavior:

* If the container is set to width: 100%, the video expands to fill the width but gets cropped at the top and bottom (zooming in) because it exceeds the landscape height.

* With other configurations, I get a "windowbox" effect (margins on all four sides), resulting in a small video in the center of the screen.

Expected Outcome:

In landscape mode, the video should "fit" the device height (100vh) while maintaining its 16:9 aspect ratio. Black bars should only appear on the sides if the screen is wider than the video's proportion.

Question:

Is this behavior forced by the native mobile browser player (especially on iOS/Android), or is it an issue with Plyr's internal CSS containers? Is there a specific Plyr configuration or CSS technique (such as aspect-ratio or object-fit) to force the player to prioritize height over width without applying a zoom/crop effect?

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