<div dir="ltr"><div>Go to about:buildconfig and see if your nightly was built with --enable-gstreamer=1.0. The Ubuntu-provided nightly in my laptop has it and H.264 works, while a manually-built nightly with the default configuration doesn't have it (bug 947287).<br>
<br></div>Panos<br><br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Sun, Jul 20, 2014 at 4:09 AM, Gavin Sharp <span dir="ltr"><<a href="mailto:gavin@gavinsharp.com" target="_blank">gavin@gavinsharp.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I don't know the answer offhand, but you might try posting this in<br>
dev.media where the media experts hang out:<br>
<br>
<a href="https://lists.mozilla.org/listinfo/dev-media" target="_blank">https://lists.mozilla.org/listinfo/dev-media</a><br>
<a href="https://groups.google.com/forum/#!forum/mozilla.dev.media" target="_blank">https://groups.google.com/forum/#!forum/mozilla.dev.media</a><br>
<br>
Gavin<br>
<div><div class="h5"><br>
On Sat, Jul 19, 2014 at 3:38 PM, Charles A Edwards <<a href="mailto:CAE@eslrahc.com">CAE@eslrahc.com</a>> wrote:<br>
><br>
> Mozilla/5.0 (X11; Linux x86_64; rv:33.0) Gecko/20100101 Firefox/33.0<br>
> ID:20140719030203 CSet: 35f3fa435d2c<br>
><br>
> What is supposed to be the current support for H.264 in Nightly?<br>
><br>
> <a href="http://html5test.com/" target="_blank">http://html5test.com/</a> shows it as Not supported.<br>
> This is with Both gstreamer0.10-ffmpeg And gstreamer1.0-libav installed<br>
> and functional and media.gstreamer.enabled set true.<br>
> This occurs if using the current profile Or a pristine profile, current<br>
> user or New user or in safe-mode.<br>
><br>
> The distro rpms for both firefox-30.0 and firefox-beta-31.0 Do have<br>
> H.264 support using libgstffmpeg.so<br>
><br>
> This site <a href="http://www.centralway.com" target="_blank">www.centralway.com</a> uses a panoramic video as background.<br>
> If accessed with nightly, nightly either crashes or shows only a static<br>
> background.<br>
> It does display as intended when using firefox-30.0 or<br>
> firefox-beta-31.0.<br>
><br>
><br>
><br>
> Charles<br>
><br>
> --<br>
> A clean and dry set of overalls is a magnet for mud and rain<br>
> -- Murphy's Bush Fire Brigade Laws n°16<br>
> ----------------------<br>
> Mageia release 5 (Cauldron) for x86_64$<br>
> On SuperSize....<a href="http://www.eslrahc.com" target="_blank">http://www.eslrahc.com</a><br>
> Registered Linux user #182463<br>
> 3.15.2-server-2.mga5 x86_64<br>
> ----------------------<br>
><br>
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</blockquote></div><br></div>