On 2012-06-14 16:55, Daniel Drake wrote:
Hi,
I'm trying to answer the following questions:
- Does WebKit's inbuilt ogg theora support use Xv for video playback?
The MediaPlayerPrivateGStreamer backend has some support for
autovideosink (which internally may chose to use the Xv video-sink).
This code path is used for fullscreen video display. However the plan is
to remove support for this once we have a working Accelerated
Compositing video layer working. This will internally rely on OpenGL.
- How can the inbuilt theora support be made to fill the screen when
accessed from a <a type="application/ogg">foo</a> link? Right now it
renders small, leaving most of the screen unused.
An anchor tag? How can this work?
To play media you have 2 alternatives:
- the HTML5 way: <audio> and <video> tags
- the plugin way: some <object> black magic :)
- Why don't the vorbis audio controls (play/stop/etc) appear on OLPC
XO laptops? (I think they appear, but 1 pixel in height)
I'd be interested to see a screenshot. A bug report might be worth too
(please CC me).
What version of WebKitGTK are you using?
- Can the inbuilt ogg support be disabled, so that we fallback to the
browser plugin provided by totem which doesn't have any of these
issues?
You can disable video support at configure time if you like.
I'm new to the WebKit code base and my usual method of understanding
these things is to figure out roughly where the code is that handles
the functionality in question, insert a gdb break point, and examine
back traces.
However I'm having trouble compiling with debug info (./configure
--enable-debug). Even with 16gb swap, ld fails with "Memory
exhausted"
during linking.
Any tips on how I can get around this?
Are you trying to build on a X0 laptop? Sounds like very ambitious.
I think you'd need lots of RAM (8G recommended) and use the GNU Gold
linker.
Philippe
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