On Tue, Jun 18, 2013 at 6:10 AM, j-b-m <j-...@users.sourceforge.net> wrote: > Hi, > > So if anyone is interested to have a look, here are my changes to make the > webvfx producers transparent. I think it would be fantastic if we can make it > work correctly within the MLT framework since it would allow anyone with HTML5 > knowledge to create custom producers to overlay text and graphics over their > videos.
This is also already available when using webvfx as a filter. I know that it fits into kdenlive's model better as a producer with alpha. And I also see value in this improvement to the producer for use with avformat consumer RGBA formats and SDI with keying. Can you explain if or how your changes will impact current users of webvfx? > I still have a problem when trying to use these producers in Kdenlive because > in EffectsImpl::render(double time, Image* renderImage), the > QMetaObject::invokeMethod(this, "renderInvokable" (...) sometimes freezes. > > You will find my changes on my personal copy of webvfx: > > https://github.com/j-b-m/webvfx > > Dan, I am also wondering why you limited the transparency stuff to "plain" > .html files. It seems to me that the webvfx javascipt enabled version is much > more useful since we can get the frame position and other infos from MLT to > use them in the HTML animations. Is there some limitation that made you choose > this? The transparent background on plain content is only intended for the webvfx filter. It was less changes than making a producer with alpha channel. Of course, the webvfx javascript extensions are useful, but if you are using those, then you can simply position and size the MLT video wherever you want and don't need this. The entire point of my changes was to enable use cases for webvfx without having to use special javascript extensions. Some people want the basics to work as expected such as taking a piece of HTML and displaying it as video or overlaying it on existing video. -- +-DRD-+ ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
