[Webkit-unassigned] [Bug 229413] iOS / iPadOS 15 video playback performance regression after seek

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=229413

--- Comment #8 from Dustin Kerstein <dustin.kerstein at gmail.com> ---
Actually, we may want to create a new bug ticket that is more focused on this new/worse behavior than this ticket was originally created for. Try going to this URL on Safari 15 (Desktop, iPadOS, iOS, etc.) - https://s3.amazonaws.com/data.panomoments.com/processed/5849a51bc26d08000b62f9f8/58a5dbc8cd5f48000bdbbe1f/uhd_dashinit.mp4

curl -I -r 0-1 https://s3.amazonaws.com/data.panomoments.com/processed/5849a51bc26d08000b62f9f8/58a5dbc8cd5f48000bdbbe1f/uhd_dashinit.mp4 

Returns 100% valid 206 responses, but something about the GOP (being dense in I-Frames / 100% I-Frames) causes Safari playback to fail (or take a very very long time to start). Are you able to replicate? If so, should we reopen or create a new ticket?

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