From: Brion Vibber <bvibber(a)wikimedia.org>
Date: Sunday, October 26, 2014 at 8:15 PM
To: Michael Dale <mdale(a)wikimedia.org>
Cc: Wikimedia Foundation Multimedia Team <multimedia(a)lists.wikimedia.org>rg>,
mobile-l <mobile-l(a)lists.wikimedia.org>
Subject: Re: [WikimediaMobile] [Multimedia] Review needed for mobile video
overlay (native and ogv.js playback)
Spent some weekend time on this and got both chunked streaming for Safari
and a bisection-based seek working[1]. Haven't merged it into the TMH
version yet as I'm not satisfied with the seek performance, but I have a
pretty good idea how to seek based on Ogg Skeleton metadata by using liboggz
on the C side and giving it custom i/o functions that manipulate the JS XHR
wrapper.
Of course, now I need to redesign the controls for the mobile overlay so
there's a way to actually invoke the seeking. ;) (On desktop it should be
able to use the existing controls in MwEmbedPlayer.)
[1]
https://github.com/brion/ogv.js/commit/cad8ef8d067a509a2a18b4ed683e2c4a17b51
4e9
Wow, great work.
Yes using the ogg index would be the way to go, bisection seeking never
worked too well for native implementations either. All derivatives created
in WMF should include ogg skeleton / index.
michael