Hello
All the best for 2015 to everyone on the list !!!
Thanks a lot for your help Stephan. Both approaches you suggested do work.
FYI, it looks like there are differences in rendering between the two :
1. if I use the webvfx filter, the definition of the resulting video looks
better at smaller definition than with the producer.
I don't really understand why, maybe it's because of the resolution of the
window webkit uses is different between the producer and the filter. I
tried setting meta.media.width and meta.media.height in the producer but it
either crashes melt or generate garbage in the video.
2. if I use the webvfx producer and uses CSS3 animations
<http://www.w3schools.com/css/css3_animations.asp> in the HTML file, the
timing and length of the animation is not respected. A 6 seconds or so
animation only lasts 1 or 2 seconds. I don't have the same problem if I use
the webvfx filter. I have no clue why :-)
Many thanks any way because I can live with the webvfx filter and in/out
parameters.
All the best
Geoffroy
2014-12-31 14:22 GMT+01:00 hatsch <hat...@gmail.com>:
> hi geoffroy,
> you can set transparent to 1 for the producer.
> then it treats no background as a transparent background ( usually
> white in a browser ) and you can also use css opacity or rgba
>
> you could also try setting in and out values for the filter.
>
> happy 2015
>
> stefan
>
>
> On Wed, Dec 31, 2014 at 12:26 AM, Geoffroy Montel
> <geoffroy.montel...@gmail.com> wrote:
> > Dear all
> >
> > Thanks to your help I got webvfx running.
> >
> > Now I'm trying to add a webvfx title to my video at some point in the
> video,
> > overlaid on top of the video.
> >
> > If I'm using webvfx as a filter, the title is overlaid on top of the
> video,
> > that's great
> >
> > <mlt LC_NUMERIC="en_US.UTF-8">
> > <producer id="0">
> > <property name="resource">video.mp4</property>
> > </producer>
> > <tractor>
> > <multitrack>
> > <tractor>
> > <multitrack>
> > <tractor>
> > <playlist>
> > <entry producer="0" in="0" out="240">
> > <filter>
> > <property name="mlt_service">webvfx</property>
> > <property name="resource">plain:index.html</property>
> > </filter>
> > </entry>
> > </playlist>
> > </tractor>
> > </multitrack>
> > </tractor>
> > </multitrack>
> > </tractor>
> > </mlt>
> >
> > But now I'm trying to add webvfx as a producer, to add the title over the
> > video one second after the video has started.
> > It does not work, the video disappears when the title appears, it looks
> like
> > the alpha channel is not taken into account .
> >
> > <mlt LC_NUMERIC="en_US.UTF-8">
> > <producer id="1">
> > <property name="resource">video.mp4</property>
> > </producer>
> > <producer id="2">
> > <property name="mlt_service">webvfx</property>
> > <property name="resource">plain:index.html</property>
> > </producer>
> > <tractor>
> > <multitrack>
> > <tractor>
> > <multitrack>
> > <tractor>
> > <playlist>
> > <entry producer="1" in="0" out="125">
> > </entry>
> > </playlist>
> > </tractor>
> > </multitrack>
> > </tractor>
> > <tractor>
> > <multitrack>
> > <tractor>
> > <playlist>
> > <blank length="25"/>
> > <entry producer="2" in="0" out="100">
> > </entry>
> > </playlist>
> > </tractor>
> > </multitrack>
> > </tractor>
> > <tractor>
> > <playlist>
> > </playlist>
> > </tractor>
> > </multitrack>
> > <transition id="composite" in="0" out="125">
> > <property name="a_track">0</property>
> > <property name="b_track">1</property>
> > <property name="mlt_service">frei0r.composition</property>
> > </transition>
> > </tractor>
> > </mlt>
> >
> > So I have two questions :
> > - is there any way to have some alpha channel when using webvfx as a
> > producer
> > - or is there any way to add a filter only on a portion (in / end) of a
> > track ?
> >
> > Thanks again, and have a nice New Year's Eve !
> >
> > Best regards
> >
> > Geoffroy
> >
> >
> >
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leadership blogs to news, videos, case studies, tutorials and more. Take a
look and join the conversation now. http://goparallel.sourceforge.net
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