On Mon, Jul 14, 2014 at 1:35 PM, Derk-Jan Hartman < d.j.hartman+wmf...@gmail.com> wrote:
> This is impressive Brion, really nice work. I can actually play > multiple 160p clips at the same time on my iPhone 5S. Thanks! :) Note that performance in Safari should improve further on iOS 8 and OS X 10.10, which enable WebGL in the browser -- this approximately halves the CPU requirements by combining YUV->RGB colorspace conversion into the drawing step on the GPU. Who ever said JavaScript had to be slow, eh? ;) > I have no > controls in iOS yet but other than that.. Really getting somewhere. > Currently seeking and volume control are not supported so the controls are indeed very minimal... I'm not quite sure why the resolution selector doesn't show on the control bar, I'll have to poke it some more. (Maybe it depends on seeking?) I think I can partially implement seeking in Safari since it actually progressively downloads the entire file into a memory buffer (!) but doing it properly will require either a server-side addition to do streaming chunks, or MPEG DASH-style pre-splitting of a/v streams into small files that can be individually loaded via a series of small XMLHTTPRequest hits (see <https://bugzilla.wikimedia.org/show_bug.cgi?id=42591> and links for background on MPEG DASH and the WebM streaming profile; presumably I'd either have to implement WebM decoding in addition to Ogg or devise a DASH profile for the Ogg container). -- brion > > DJ > > On Mon, Jul 14, 2014 at 6:31 AM, Brion Vibber <bvib...@wikimedia.org> > wrote: > > I spent the weekend hacking at integration of my ogv.js JavaScript Ogg > > media player into TimedMediaHandler's embedded player widget. Patch set > in > > progress: > > https://gerrit.wikimedia.org/r/#/c/145756/ > > > > It's pretty much working in Safari 7 and IE 10/11, but needs various > tweaks > > and fixes still. Some older browser versions should be supportable using > a > > Flash cross-compile, but I haven't got that running in the embedding yet. > > > > Here's a wiki running the patch with some sample files: > > https://ogvjs-testing.wmflabs.org/ > > > > > > In the process I've noticed several issues with TimedMediaHandler and its > > dependencies when running on cutting-edge infrastructure; various bugs > > filed: > > > > HHVM issues: > > * https://bugzilla.wikimedia.org/show_bug.cgi?id=67937 - players don't > > display (patch) > > * https://bugzilla.wikimedia.org/show_bug.cgi?id=67973 - job runner > doesn't > > work > > > > Ubuntu Trusty video transcoding issues: > > * https://bugzilla.wikimedia.org/show_bug.cgi?id=67953 .ogv transcodes > > broken (upstream; workaround) > > * https://bugzilla.wikimedia.org/show_bug.cgi?id=67951 .webm transcodes > > broken (upstream) > > > > And a Vagrant configuration issue: > > * https://bugzilla.wikimedia.org/show_bug.cgi?id=67930 - no job runner > for > > TMH role > > > > -- brion > > _______________________________________________ > > Wikitech-l mailing list > > Wikitech-l@lists.wikimedia.org > > https://lists.wikimedia.org/mailman/listinfo/wikitech-l > > _______________________________________________ > Wikitech-l mailing list > Wikitech-l@lists.wikimedia.org > https://lists.wikimedia.org/mailman/listinfo/wikitech-l _______________________________________________ Wikitech-l mailing list Wikitech-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikitech-l
