about:config settings for h.264/mp4 support?

[Walter Dnes]

I've manually built the Atom source 25.8_Atom_Relbranch with gstreamer support enabled. I've installed gstreamer-0.10-x, and corresponding base/good/bad/ugly plugins. Youtube doesn't see h.264 support, and neither does http://www.quirksmode.org/html5/tests/video.html My Google search turned up nothing useful. The about:config contains...

media.gstreamer.enabled; true
media.ogg.enabled; true
media.opus.enabled; true
media.wave.enabled; true
media.webaudio.enabled; true
media.webm.enabled; true

I've read several threads here, but no help. I created a new test profile, with no luck. Any further ideas?

[trava90]

You likely need gstreamer0.10-ffmpeg installed in addition to the plugins.

[troypulk]

You likely need gstreamer0.10-ffmpeg installed in addition to the plugins.

That's true, but if it's Debian Testing it will probably not work.

[Walter Dnes]

You likely need gstreamer0.10-ffmpeg installed in addition to the plugins.

Thank you very much. That was the solution. Youtube shows HTMLVideoElement, H.264, and WebM VP8 available.and all 3 videos on http://www.quirksmode.org/html5/tests/video.html play properly for me.

That's true, but if it's Debian Testing it will probably not work.

I'm on Gentoo. Heads up for any other Gentoo users. The location of the plugin-ebuilds is a bit confusing. gstreamer, gst-plugins-bad, gst-plugins-base, gst-plugins-good, gst-plugins-ugly, gst-rtsp-server, and gstreamer-editing-services are in the media-libs subdirectory. But gst-plugins-ffmpeg, and 77 others, are in the media-plugins subdirectory.

[Walter Dnes]

Further details... I removed gst-plugins (good/bad/ugly) and neither Youtube nor the quirksmode site showed h.264 support. More experimentation indicates that for h.264 support on Youtube and quirksmode, I need the following...

• gstreamer
• gst-plugins-base
• gst-plugins-good
• gst-plugins-ffmpeg