[Webkit-unassigned] [Bug 242059] HTML5 Video tag, HLS VOD: duration increases as the chunks are loading

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=242059

Eknoor <eknoor at apple.com> changed:

           What    |Removed                     |Added
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                 CC|                            |eknoor at apple.com

--- Comment #2 from Eknoor <eknoor at apple.com> ---
(In reply to vaerlux from comment #0)
> Steps to reproduce:
> 
> 1. Limit internet connection speed. I tested using 1 mbps down.
> 2. Create a stream using <video> tag (I just used the sandbox at
> https://www.w3schools.com/html/tryit.asp?filename=tryhtml5_video_all): 
> ```
> <video width="640" height="400" controls="controls"
> src="https://multiplatform-f.akamaihd.net/i/multi/april11/sintel/sintel-hd_,
> 512x288_450_b,640x360_700_b,768x432_1000_b,1024x576_1400_m,.mp4.csmil/master.
> m3u8"></video>
> </video>
> ```
> 3. Observe the displayed video duration in video controls. Initially the
> duration is correct, but as the .ts start loading, the duration drops to a
> few seconds and slowly increases as more chunks get downloaded.
> 
> The expected result is that the duration is always equal to the duration of
> the entire VOD.
>  
> The issue could be reproduced on Safari on MacOS (12.4) as well as on iOS

Thank you for the report. Can we get a new link for the playlist that reproduces the issue since the current one no longer appears to be available? 
Is the issue still reproducible on macOS 12.5?

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