[Webkit-unassigned] [Bug 241789] New: Portrait HLS video first loads at small size before resizing to fit <video> element

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Jun 20 14:47:54 PDT 2022


https://bugs.webkit.org/show_bug.cgi?id=241789

            Bug ID: 241789
           Summary: Portrait HLS video first loads at small size before
                    resizing to fit <video> element
           Product: WebKit
           Version: Safari 15
          Hardware: iPhone / iPad
                OS: iOS 15
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: carter.joshua.603 at gmail.com

Created attachment 460356

  --> https://bugs.webkit.org/attachment.cgi?id=460356&action=review

A zip file containing two screenshots: the initial small rendering, and after it resizes

**What currently happens**
On **iOS 13, 14, and 15** (including the latest version of Safari - 15.5), when a **portrait** **HLS** video is first rendered (on iOS this is when it is first played), the video content initially renders much smaller than the video element (screenshot 143501) before quickly resizing to take up the full `<video>` element as expected (screenshot 143534):

**What I would expect**
When playing a video for the first time, the content, when first rendered, should fill the `<video>` element as expected.

**Example**
A reproducible example with instructions may be found here: https://mgpl43.csb.app/

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