[Webkit-unassigned] [Bug 207096] New: drawImage doesn't paint the current frame of a video if the video is Vertical

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=207096

            Bug ID: 207096
           Summary: drawImage doesn't paint the current frame of a video
                    if the video is Vertical
           Product: WebKit
           Version: Safari 13
          Hardware: iPhone / iPad
                OS: iOS 13
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Canvas
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: acrong3 at gmail.com
                CC: dino at apple.com

Similar bug to https://bugs.webkit.org/show_bug.cgi?id=153588


canvas.getContext('2d').drawImage(video, ...) only paints the first frame of `video` when the video is vertical (portrait, for example width=1080 and height=1920 video taken from iphone)

The problem doesn't happen in OS X Safari, but happens only in iOS safari (or any webkit environments, like IOS Webview)

The problem happens regardless of the video's type, whether it's uploaded from the phone via file input or served via the server, the video size, etc.

Horizontal (Landscape) videos aren't having any problem, only vertical videos do.

The bug is very consistent for my development environment, happening every time.

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