On Tue, Jun 4, 2013 at 8:06 PM, Dan Dennedy <d...@dennedy.org> wrote: > On Tue, Jun 4, 2013 at 1:25 PM, s v Satyanarayana <s.sv...@gmail.com> wrote: >> Hello everyone, >> >> Is there any way to make video using MLT with some text effects like pan and >> zoom, blur and rotating text like in this video >> http://www.youtube.com/watch?feature=player_embedded&v=hjrlUjrpzcg#!? >> > > Yes, but it is a bit limited and requires reading some code and > exploring. Here is an example: > > melt -profile square_ntsc -producer pango text=hello pad=20 -filter > frei0r.IIRblur "0=1; 50=0" -filter affine transition.geometry="0=40% > 40% 100 100; 100=30% 30% 200 200" > > That assumes you have gtk2 working and that frei0r plugin. The affine > transition can do a lot of transformations including rotation, but it > is undocumented outside of the source code. > > This is an interesting question, in general, about the ways one can > support 2D animations (in addition to the above): > > kdenlivetitle - undocumented but you can mock things up in kdenlive > and look at the XML it generates - limited inbuilt animation and > filters, but you can always apply other effects in MLT to it. > > SVG file - GDK and Qt's SVG renderers have none or very limited > support for SVG animation, but SVG can be easily generated like > anything XML-based. > > SWF (Flash) - transparent background is supported as in all of the > above. Adobe's tool can be very expressive. Requires swfdec, which is > no longer in most Linux distros but can be found on github. > > 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.html > Image sequence - find another tool that can output an animation as a > PNG image sequence. For example, OpenShot contains python scripts that > drive blender to generate 3D-rendered image sequences (or videos, I > forget). ------------------------------------------------------------------------------ How ServiceNow helps IT people transform IT departments: 1. A cloud service to automate IT design, transition and operations 2. Dashboards that offer high-level views of enterprise services 3. A single system of record for all IT processes http://p.sf.net/sfu/servicenow-d2d-j _______________________________________________ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
