I have been trying to compile WebVfx right after this conversation , but
failed to install those package like qtwebkit,qtquick3d etc , could some
one please help me in installing webvfx on Ubuntu 13.
Thanks in advance.
On 11 Jun 2013 04:47, "j-b-m" <j-...@users.sourceforge.net> wrote:
> On Monday 10 June 2013 09.12:00 Dan Dennedy wrote:
> > On Wed, Jun 5, 2013 at 11:19 PM, Dan Dennedy <d...@dennedy.org> wrote:
> > > On Tue, Jun 4, 2013 at 8:14 PM, Dan Dennedy <d...@dennedy.org> wrote:
> > >> > HTML5 or QML - available via WebVfx MLT plugin on github, but
> > >> > unfortunately it does not make a transparent background/alpha
> channel.
> > >> > If it did, I would suggest this route for the best expression.
> > >>
> > >> Oh, yeah, I should mention that WebVfx includes a filter so with
> > >> appropriate usage of JavaScript extensions, you can put MLT video into
> > >> the composition as a background image:
> > >>
> > >>
> http://rectalogic.github.io/webvfx/examples_2filter-demo_8qml-example.htm
> > >> l
> > >
> > > With some changes a couple of months ago, I made it possible to render
> > > HTML and QML content that does not use WebVfx-specific JavaScript
> > > extensions, but it renders those with an opaque background. Tonight, I
> > > did some poking around to see if I could extend that to the webvfx
> > > filter. I discovered it works already today in QML if you simply set
> > > the color of your background rectangle to "transparent" and preface
> > > the filename with "plain:" to tell WebVfx not to wait for a "ready"
> > > from JavaScript. I also found that with the simple addition of 3 lines
> > > in the C++ WebVfx code, I can make the default page color of HTML
> > > transparent. So, I am discussing that change with the WebVfx
> > > developer. I am quite excited about this as it will open up HTML and
> > > QML-based text and animation effects for video to many.
> >
> > Rectalogic's WebVfx github project has merged my patch that lets you
> > use plain HTML (file or http) with the webvfx filter to overlay the
> > video. Basically, it makes the default web page color transparent.
> > "Plain" means it does not need to use any webvfx javascript extensions
> > to map the MLT video to a HTML img element and to initiate rendering.
> > It Just Works as long as you preface the HTML filename or URL with
> > "plain:" as in melt ... -filter webvfx resource="plain:file.html"
>
>
> Great, thanks.
>
> I made a few tests and managed to get the WebVfx MLT producers have
> transparency too. I can clean it a bit and send the patch later.
>
> regards
> jb
>
>
>
>
>
>
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